SLG320240A Series Graphic LCD Module

Product Information

Specifications

• Model No.: SL3AG320240A
• Display Size: 320*240
• Outline Size: 160.00*109.00 MM
• Viewing Area: 122.00*92.00 MM
• Interface: (20+8)P/2.54 8 Bit Parallel
• Voltage: 5.0V
• Controller: RA8835
• Touch Panel: Resistive Touch Panel

Product Usage Instructions

1. Outline Drawing

Refer to the outline drawing section in the user manual for
detailed dimensions and visual representation of the product.

2. Electrical Specifications

Make sure to follow the pin configuration provided in the manual
to ensure proper electrical connections. Be aware of the absolute
maximum ratings to prevent damage to the module. Check the
electrical characteristics for optimal performance.

3. Precautions for Using

Follow the precautions outlined in the manual to ensure safe and
efficient usage of the graphic LCD module. Pay attention to
handling, storage, and environmental considerations.

4. Using Graphic Modules

Refer to the specific instructions provided for using graphic
modules in the user manual. Follow the guidelines for seamless
integration and operation.

Frequently Asked Questions (FAQ)

Q: Can I use a different controller with this LCD module?

A: It is recommended to use the specified RA8835 controller for
optimal compatibility and performance.

Q: Is the touch panel mandatory for this LCD module?

A: The touch panel is optional, but it can enhance user
interaction and functionality if included.

SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

SLG320240A Series (RTP: Optional)
GRAPHIC LCD MODULE USER MANUAL
Please click the following image to buy the sample

Shenzhen Surenoo Technology Co.,Ltd. www.surenoo.com
Skype: Surenoo365

Reference Controller Datasheet
Graphic LCD Selection Guide

RA8835

ADS7843

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SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

CONTENTS
1. ORDER INFORMATION – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 04
1.1 Order Number – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 04 1.2 Image – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – — – – – – – – – – – – – – – – – – – – – – – – 04
2. SPECIFICATION – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 05
2.1 Display Specification – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – — – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 05 2.2 Mechanical Specification – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 05 2.3 Electrical Specification – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – — – – – – – – – – – – – – 05 2.4 Optical Specification – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 05
3. OUTLINE DRAWING – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 06
4. ELECTRICAL SPEC – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – — – – – – – – – – – – – – – – – – 07
4.1 Pin Configuration – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 07 4.2 Absolute Maximum Ratings – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 08 4.3 Electrical Characteristics – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 08
5. INSPECTION CRITERIA – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 09
5.1 Acceptable Quality Level – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – — – – – – – – – – – – – – – – – – – – – – 09 5.2 Definition of Lot – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – — – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 09 5.3 Condition of Cosmetic Inspection – – – – – – – – – – – – – – – – – – – – – – – – – — – – – – – – – – – – – – – – – – – – – – – – – – – – 09 5.4 Module Cosmetic Criteria – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 10 5.5 Screen Cosmetic Criteria (Non-Operating) – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 12 5.6 Screen Cosmetic Criteria (Operating) – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 13
6. PRECAUTIONS FOR USING – – – – – – – – – – – – – – – – – – – – — – – – – – – – – – – – – – – – – – – – – – – – – – – – 15
6.1 Handling Precautions – – – – – – – – — – – – – – – – – – – – – – – – – – – – – – – – – – – – – – — – – – – – – – – – – – – – – – – – – – – 15 6.2 Power Supply Precautions- – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 15 6.3 Operating Precautions- – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 16 6.4 Mechanical/Environmental Precautions – – – – – – – – – – – – – – – – – – – – – – – – – – – – – — – – – – — – – – – – – – – – – – – – 16 6.5 Storage Precautions – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 16 6.6 Others- – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – — – – – – – – – – – – – – – – – – – – – – – – – – – – – – 16

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SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

7.USING Graphic MODULES – – – – – – – – – – – – —— – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 17
7.1 Liquid Crystal Display Modules – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 17 7.2 Installing Graphci Modules – – —- – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 17 7.3 Precaution for Handling Graphic Modules – – – – – – – – – – – – – – – – – —- – – – – – – – – – – – – – – – – – – – – – – – – – – – – 17 7.4 Electro-Static Discharge Control- – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 18 7.5 Precaution for Soldering to Surenoo LCM – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 18 7.6 Precaution for Operation – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 18 7.7 Limited Warranty – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 19 7.8 Return Policy – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 19
8. IMAGE STICKING – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 20
8.1 What is Image Sticking? – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 20 8.2 What causes Image Sticking? – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 20 8.3 How to Avoid Image Sticking? – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 21 8.4 How to Fix the Image Sticking? – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – – 21 8.5 Is Image Sticking Covered by Surenoo RMA Warranty – – – – – – – – – – – – – – – – – – – – – – – – – — – – – – – – – – – – – 21

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SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

1. ORDERING INFORMATION
1.1 Order Number

Model No.

Display

Size

Outline Size Viewing Area

(MM)

(MM)

Area Area (MM)

Interface Voltage Controller

MARK

Color Valid

320240 5.7″ 160.00109.00 122.0092.00 115.1786.37

SURENOO

5.0V

RA8835

Resistive Touch Panel

SURENOO

SLG320240A
(20+8)P/2.54 8 Bit Parallel

1.2 Image

Image

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Page: 04 of 21

SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

2. SPECIFICATION
58B214039
2.1 Display Specification
40B59376
ITEM
60B574
Dot Matrix
63B057
Display Connector
6B308
Operating Temperature
70B648
Storage Temperature
73B0689
Touch Panel Optional Font Chip Optional
82B796
2.2 Mechanical Specification ITEM
86B30
Outline Dimension
89B63
Visual Area
92B86
Active Area
94B18
Dot Size
96B308
Dot Pitch
9B63
Net Weight
102B96
2.3 Electrical Specification ITEM
106B3
IC Package
109B637
Controller
12B0967
Interface
15B209
2.4 Optical Specification ITEM
19B63
LCD Type
12B9653
Backlight Color
125B96
Viewing Direction
128B56
LCD Duty
13B2856
LCD Bias
134B2859

STANDARD VALUE
61B584
320 x 240 Dots
64B158
Pin Header, 20 + 8 Pins
67B419
-20 ~ +70
71B685
-30 ~ +80
74B16890
Yes (ADS7843) N/A
STANDARD VALUE
87B41
160.00(W) × 109.00(H) × 12.40(T) (MAX)
90B874
122.00(W) × 92.00(H)
90B874
115.17(W) × 86.37(H)
90B874
0.33×0.33
97B418
0.36×0.36
10B974
200.0 ± 15% grams (typical) 103B97
STANDARD VALUE
107B4
COB
10B742
RA8835 or Equivalent
13B072
6800 8-bit Parallel
16B309
STANDARD VALUE
120B74
Refer to 1.1 SLG320240A Series Table
123B0754
Refer to 1.1 SLG320240A Series Table
123B0754
6:00
129B63
1/240
132B9657
1/16
135B2960

UNIT
62B594
—
65B29
—
68B5270

72B698

75B2691
—
81B75
—
UNIT
8B52
mm
91B85
mm
93B087
mm
95B28
mm
98B52
mm
10B985
g
104B98
UNIT
108B52
—
1B085
—
14B08
—
17B4
UNIT
12B85
—
124B85
—
127B46
Clock
130B2746
Duty
13B02758
Bias
136B0

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Page: 06 of 21

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All Pages Of This Edition Approved

Signature:

Date:

1.Unit: mm 2.OD=Outline Dimension 3.VA=Visual Area 4.AA=Active Area

LED Backlight
Iron Frame Touch Panel (1.40)

SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

DWG TITLE: OUTLINE DRAWING

DWG NO.: 001 DESIGNED BY:

JIM

CHECKED BY: LGP

APPROVED BY:

CONFIRMED BY:

REV0 REV1 REV2

1’ST DESIGN

SLG320240A Series

DATE: 20120131 DATE: DATE: SCALE:
NO.: 1 OF 1
UNIT: MM DATE: 2008/10/12

SHENZHEN SURENOO TECHNOLOGY CO.,LTD.
3. OUTLINE DRAWING

Model No.: SLA3G320240A

SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

4. ELECTRICAL SPEC

4.1 Pin Configuration

J1 Interface (8080 8-Bit LCD Interface)

Pin No.

Symbol

Level

1

VSS

0V

2

VDD

5.0V

3

V0

–

4

WR

L

5

RD

L

6

CE

L

7

A0

H/L

8

RST

L

9-16

DB0-DB7

H/L

17

NC

–

18

VEE

–

19

BLA

5.0V

20

BLK

0V

J4 Interface (ADS7843 Touch Interface)

Pin No.

Symbol

Level

1

DCLK

H/L

2

T-CS

L

3

DIN

H/L

4

BUSY

H/L

5

DOUT

H/L

6

PEN

H/L

7

IN3

H/L

8

IN4

H/L

Ground Power Supply for Logic Power Supply for LCD (+22.5V) Write Signal Read Signal Chip Enable Signal Instruction / Data Selection Reset Signal, Low Active Data Bus Line Open Negative Voltage Output (-20.0V) Backlight Anode (+5V) Backlight Cathode (0V)
ADS7843 Serial Clock ADS7843 Chip Enable Signal ADS7843 Serial Data Input ADS7843 Busy Signal ADS7843 Serial Data Output ADS7843 Interrupt Signal ADS7843 Auxiliary Input 1 ADS7843 Auxiliary Input 2

J2 Interface (8080 8-Bit LCD and ADS7843 Touch Interface)

Model No.: SL3AG320240A
Description
Description

Symbol RST RD WR CS
A0(RS) DB0-DB7
VDD VSS VEE V0 DCLK DOUT DIN T-CS PEN BLA BLK

Pin No. 1 2 3 4 5
6-13 14 15 16 17 18 19 20 21 22 23 24

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Page: 07 of 21

SHENZHEN SURENOO TECHNOLOGY CO.,LTD. 4.2 Absolute Maximum Ratings
4.3 Electrical Characteristics ( VDD=5V±0.25V )
—–
4.4 BLOCK DIAGRAM

Model No.: SL3AG320240A

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Page: 08 of 21

SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

5. INSPECTION CRITERIA
5.1 Acceptable Quality Level

Each lot should satisfy the quality level defined as follows

Partition

AQL

Definition

A. Major

0.4%

Functional defective as product

B. Minor

1.5%

Satisfy all functions as product but not satisfy cosmetic standard

5.2 Definition of Lot
One lot means the delivery quantity to customer at one time.
5.3 Condition of Cosmetic Inspection
INSPECTION AND TEST -FUNCTION TEST -APPEARANCE INSPECTION -PACKING SPECIFICTION
INSPECTION CONDITION – Put under the lamp (20W) at a distance 100mm from – Tilt upright 45 degree by the front (back) to inspect Panel appearance.
AQL INSPECTION LEVEL – SAMPLING METHOD: MIL-STD-105D – SAMPLING PLAN: SINGLE – MAJOR DEFECT: 0.4% (MAJOR) – MINOR DEFECT: 1.5% (MINOR) – GENERAL LEVEL: II/NORMAL

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Page: 09 of 21

SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

5.4 Module Cosmetic Criteria

No.

Item

Judgment Criterion

1 Difference in Spec.

None allowed

2 Pattern Peeling

No substrate pattern peeling and floating

3 Soldering Defects

No soldering missing

No soldering bridge

No cold soldering

4 Resist Flaw on Substrate Invisible copper foil(0.5mm or more)on substrate pattern

5 Accretion of Metallic

No soldering dust

Foreign Matter

No accretion of metallic foreign matters(Not exceed0.2mm)

6 Stain

No stain to spoil cosmetic badly

7 Plate Discoloring

No plate fading, rusting and discoloring

Solder Amount

1.Lead Parts

Partition Major Major Major Major Minor Minor Minor
Minor Minor Minor

8 2.Flat Packages 3.Chips

a. Soldering side of PCB Solder to form a’Filet’all around the lead. Solder should not hide the lead form perfectly.(too much)
b.Components side (In case of `Through Hole PCB’) Solder to reach the Components side of PCB

Eithertoe'(A) orheal’ (B) of the lead to be covered by Filet’.
Lead form to be assume over solder.
(3/2) Hh(1/2)H

A

B

h

H

Minor Minor

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Page: 10 of 21

SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

9 Backlight Defects 10 PCB Defects 11 Soldering Defects

1.Light fails or flickers.(Major) 2. Color and luminance do not correspond to specifications.
(Major) 3.Exceeds standards for display’s blemishes, foreign matter,
dark lines or scratches.(Minor)
Oxidation or contamination on connectors. 2. Wrong parts, missing parts, or parts not in specification. 3.Jumpers set incorrectly.(Minor) 4.Solder(if any)on bezel, LED pad, zebra pad, or screw hole
pad is not smooth.(Minor) Minor if display functions correctly. Major if the display fails.
1. Unmelted solder paste. 2. Cold solder joints, missing solder connections, or oxidation. 3. Solder bridges causing short circuits. 4. Residue or solder balls. 5. Solder flux is black or brown. Minor if display functions correctly. Major if the display fails.

See list
See list
Minor

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Page: 11 of 21

SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

5.5 Screen Cosmetic Criteria (Non-Operating)

No. Defect

Judgment Criterion

1 Spots

In accordance with Screen Cosmetic Criteria (Operating) No.1.

2 Lines

In accordance with Screen Cosmetic Criteria (Operation) No.2.

3 Bubbles in Polarizer

Size: d mm

Acceptable Qty in active area

d0.3

Disregard

0.3<d1.0

3

1.0<d1.5

1

1.5<d

0

Partition Minor Minor Minor

4 Scratch
5 Allowable density 6 Coloration
7 Contamination

In accordance with spots and lines operating cosmetic criteria, When the light reflects on the panel surface, the scratches are not to be remarkable. Above defects should be separated more than 30mm each other. Not to be noticeable coloration in the viewing area of the Graphic panels. Back-lit type should be judged with back-lit on state only. Not to be noticeable.

Minor
Minor Minor
Minor

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Page: 12 of 21

SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

5.6 Screen Cosmetic Criteria (Operating)

No.

Defect

1 Spots

2 Lines

A) Clear

Judgment Criterion

Size:d mm d0.1
0.1<d0.2 0.2<d0.3
0.3<d

Acceptable Qty in active area Disregard 6 2 0

Note: Including pin holes and defective dots which must be within one pixel Size. Unclear

Size:d mm d0.2
0.2<d0.5 0.5<d0.7
0.7<d

Acceptable Qty in active area Disregard 6 2 0

A) Clear

Partition Minor
Minor

L 5.0 2.0

8

(0) (6)

0.02 0.05

0.1

Note: () ­ Acceptable Qty in active area L – Length (mm) W -Width(mm) -Disregard
B) Unclear

8

L 10.0 (6)
2.0 0.05

(0) 0.3

See No.1 W
See No.1 W
0.5

Clear’ = The shade and size are not changed by Vo. Unclear’= The shade and size are changed by Vo.

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Page: 13 of 21

SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

No.

Defect

Judgment Criterion

3 Rubbing line

Not to be noticeable.

4 Allowable density Above defects should be separated more than 10mm each other.

5 Rainbow

Not to be noticeable.

6 Dot size

To be 95%~105%of the dot size (Typ.) in drawing. Partial defects of each dot (ex.pin-hole) should be treated as spot. (see Screen Cosmetic Criteria (Operating) No.1)

7 Brightness (only back-lit Module)

Brightness Uniformity must be BMAX/BMIN2 – BMAX : Max.value by measure in 5 points – BMIN : Min.value by measure in 5 points Divide active area into 4 vertically and horizontally. Measure 5 points shown in the following figure.

Partition Minor Minor Minor Minor
Minor

8 Contrast Uniformity

Contrast Uniformity must be BmAX/BMIN2 Measure 5 points shown in the following figure. Dashed lines divide active area into 4 vertically and horizontally. Measuring points are located at the inter-sections of dashed line.

Minor

Note: BMAX ­ Max.value by measure in 5 points. BMIN ­ Min.value by measure in 5 points. O ­ Measuring points in 10mm.
Note: (1) Size: d=(long length + short length)/2 (2) The limit samples for each item have priority. (3) Complexed defects are defined item by item, but if the number of defects is defined in above table, the total number should not exceed 10.

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Page: 14 of 21

SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

6.3 Operating Precautions
DO NOT plug or unplug Surenoo module when the system is powered up.
345B29
Minimize the cable length between Surenoo module and host MPU. For models with backlights, do not disable the backlight by interrupting the HV line. Unload inverters produce voltage
extremes that may arc within a cable or at the display. Operate Surenoo module within the limits of the modules temperature specifications.
6.4 Mechanical/Environmental Precautions
Improper soldering is the major cause of module difficulty. Use of flux cleaner is not recommended as they may seep under
350B47
the electrometric connection and cause display failure. Mount Surenoo module so that it is free from torque and mechanical stress. Surface of the Graphic panel should not be touched or scratched. The display front surface is an easily scratched, plastic
polarizer. Avoid contact and clean only when necessary with soft, absorbent cotton dampened with petroleum benzene. Always employ anti-static procedure while handling Surenoo module. Prevent moisture build-up upon the module and observe the environmental constraints for storage tem Do not store in direct sunlight If leakage of the liquid crystal material should occur, avoid contact with this material, particularly ingestion. If the body or
clothing becomes contaminated by the liquid crystal material, wash thoroughly with water and soap.
6.5 Storage Precautions
When storing the Graphic modules, avoid exposure to direct sunlight or to the light of fluorescent lamps. Keep Surenoo modules in bags (avoid high temperature / high humidity and low temperatures below 0 ºC. Whenever possible, Surenoo Graphic modules should be stored in the same conditions in which they were shipped from our company.
6.6 Others
Liquid crystals solidify under low temperature (below the storage temperature range) leading to defective orientation or the
36B057
generation of air bubbles (black or white). Air bubbles may also be generated if the module is subject to a low temperature. If Surenoo Graphic modules have been operating for a long time showing the same display patterns, the display patterns may remain on the screen as ghost images and a slight contrast irregularity may also appear. A normal operating status can be regained by suspending use for some time. It should be noted that this phenomenon does not adversely affect performance reliability. To minimize the performance degradation of the Graphic modules resulting from destruction caused by static electricity etc., exercise care to avoid holding the following sections when handling the modules. -Exposed area of the printed circuit board.
-Terminal electrode sections.

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Page: 15 of 21

SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

(4) In case of concentration’, even the spots or the lines ofdisregarded’ size should not be allowed. Following three situations should be treated as `concentration’.
-7 or over defects in circle of 5mm. -10 or over defects in circle of 10mm -20 or over defects in circle of 20mm
6. PRECAUTIONS FOR USING
6.1 Handling Precautions

This device is susceptible to Electro-Static Discharge (ESD) damage. Observe Anti-Static precautions. Surenoo display panel is made of glass. Do not subject it to a mechanical shock by dropping it or impact. If Surenoo display panel is damaged and the liquid crystal substance leaks out, be sure not to get any in your mouth. If the
substance contacts your skin or clothes, wash it off using soap and water. Do not apply excessive force to the Surenoo display surface or the adjoining areas since this may cause the color tone to
vary. The polarizer covering the Surenoo display surface of the Graphic module is soft and easily scratched. Handle this polarizer
carefully. If Surenoo display surface becomes contaminated, breathe on the surface and gently wipe it with a soft dry cloth. If it is
heavily contaminated, moisten cloth with one of the following Isopropyl or alcohol. Solvents other than those above-mentioned may damage the polarizer. Especially, do not use the Water. Exercise care to minimize corrosion of the electrode. Corrosion of the electrodes is accelerated by water droplets, moisture
condensation or a current flow in a high-humidity environment. Install the Surenoo Graphic Module by using the mounting holes. When mounting the Graphic module make sure it is free of
twisting, warping and distortion. In particular, do not forcibly pull or bend the cable or the backlight cable. Do not attempt to disassemble or process Surenoo Graphic module. NC terminal should be open. Do not connect anything. If the logic circuit power is off, do not apply the input signals. To prevent destruction of the elements by static electricity, be careful to maintain an optimum work environment.
-Be sure to ground the body when handling Surenoo Graphic modules. -Tools required for assembling, such as soldering irons, must be properly grounded. -To reduce the amount of static electricity generated, do not conduct assembling and other work under dry conditions. -The Graphic module is coated with a film to protect the display surface. Exercise care when peeling off this protective film since static electricity may be generated.

6.2 Power Supply Precautions

Identify and, at all times, observe absolute maximum ratings for both logic and LC drivers. Note that there is some variance
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between models. Prevent the application of reverse polarity to VDD and VSS, however briefly. Use a clean power source free from transients. Power-up conditions are occasionally jolting and may exceed the maximum
ratings of Surenoo modules. The VDD power of Surenoo module should also supply the power to all devices that may access the display. Don’t allow
the data bus to be driven when the logic supply to the module is turned off.

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SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

7. USING Graphic MODULES
7.1 Liquid Crystal Display Modules
Surenoo Display is composed of glass and polarizer. Pay attention to the following items when handling. Please keep the temperature within specified range for use and storage. Polarization degradation, bubble generation or
polarizer peel-off may occur with high temperature and high humidity. Do not touch, push or rub the exposed polarizers with anything harder than an HB pencil lead (glass, tweezers, etc.). N-hexane is recommended for cleaning the adhesives used to attach front/rear polarizers and reflectors made of organic
substances which will be damaged by chemicals such as acetone, toluene, ethanol and isopropyl alcohol. When Surenoo display surface becomes dusty, wipe gently with absorbent cotton or other soft material like chamois
soaked in petroleum benzin. Do not scrub hard to avoid damaging the display surface. Wipe off saliva or water drops immediately, contact with water over a long period of time may cause deformation or color
fading. Avoid contacting oil and fats. Condensation on the surface and contact with terminals due to cold will damage, stain or dirty the polarizers. After products
are tested at low temperature they must be warmed up in a container before coming is contacting with room temperature air. Do not put or attach anything on Surenoo display area to avoid leaving marks on. Do not touch the display with bare hands. This will stain the display area and degradate insulation between terminals (some cosmetics are determinated to the polarizers). As glass is fragile. It tends to become or chipped during handling especially on the edges. Please avoid dropping.
7.2 Installing Graphic Modules
Cover the surface with a transparent protective plate to protect the polarizer and LC cell.
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When assembling the LCM into other equipment, the spacer to the bit between the LCM and the fitting plate should have enough height to avoid causing stress to the module surface, refer to the individual specifications for measurements. The measurement tolerance should be±0.1mm.
7.3 Precaution for Handling Graphic Modules
Since Surenoo LCM has been assembled and adjusted with a high degree of precision; avoid applying excessive shocks to the module or making any alterations or modifications to it. Do not alter, modify or change the shape of the tab on the metal frame. Do not make extra holes on the printed circuit board, modify its shape or change the positions of components to be
attached. Do not damage or modify the pattern writing on the printed circuit board. Absolutely do not modify the zebra rubber strip (conductive rubber) or heat seal connector. Except for soldering the interface, do not make any alterations or modifications with a soldering iron. Do not drop, bend or twist Surenoo LCM.

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SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

7.4 Electro-Static Discharge Control
Since this module uses a CMOS LSI, the same careful attention should be paid to electrostatic discharge as for an ordinary CMOS IC. Make certain that you are grounded when handing LCM. Before remove LCM from its packing case or incorporating it into a set, be sure the module and your body have the same
electric potential. When soldering the terminal of LCM, make certain the AC power source for the soldering iron does not leak. When using an electric screwdriver to attach LCM, the screwdriver should be of ground potentiality to minimize as much as
possible any transmission of electromagnetic waves produced sparks coming from the commutator of the motor. As far as possible make the electric potential of your work clothes and that of the work bench the ground potential. To reduce the generation of static electricity be careful that the air in the work is not too dried. A relative humidity of 50%-60%
is recommended.
7.5 Precaution for Soldering to Surenoo LCM
Observe the following when soldering lead wire, connector cable and etc. to the LCM. -Soldering iron temperature : 280±10 -Soldering time: 3-4 sec. -Solder: eutectic solder.
If soldering flux is used, be sure to remove any remaining flux after finishing to soldering operation. (This does not apply in the case of a non- halogen type of flux.) It is recommended that you protect the Panel surface with a cover during soldering to prevent any damage due to flux spatters. When soldering the electroluminescent panel and PC board, the panel and board should not be detached more than three
times. This maximum number is determined by the temperature and time conditions mentioned above, though there may be some variance depending on the temperature of the soldering iron. When remove the electroluminescent panel from the PC board, be sure the solder has completely melted, the soldered pad on the PCs board could be damaged.
7.6 Precaution for Operation
Driving the Surenoo Graphic in the voltage above the limit shortens its life.
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Response time is greatly delayed at temperature below the operating temperature range. However, this does not mean the Panel will be out of the order. It will recover when it returns to the specified temperature range.
If Surenoo display area is pushed hard during operation, the display will become abnormal. However, it will return to normal if it is turned off and then back on.
Condensation on terminals can cause an electrochemical reaction disrupting the terminal circuit. Therefore, it must be used under the relative condition of 40, 50% RH.
When turning the power on, input each signal after the positive/negative voltage becomes stable.

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SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

7.7 Limited Warranty
Unless agreed between Surenoo and customer, Surenoo will replace or repair any of its Graphic modules which are found to
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be functionally defective when inspected in accordance with Surenoo Graphic acceptance standards (copies available upon request) for a period of one year from date of shipments. Cosmetic/visual defects must be returned to Surenoo within 90 days of shipment. Confirmation of such date shall be based on freight documents. The warranty liability of Surenoo limited to repair and/or replacement on the terms set forth above. Surenoo will not be responsible for any subsequent or consequential events.
7.8 Return Policy
No warranty can be granted if the precautions stated above have been disregarded. The typical examples of violations are:
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-Broken Graphic glass. -PCB eyelet damaged or modified. -PCB conductors damaged. -Circuit modified in any way, including addition of components. -PCB tampered with by grinding, engraving or painting varnish. -Soldering to or modifying the bezel in any manner. Module repairs will be invoiced to the customer upon mutual agreement. Modules must be returned with sufficient description of the failures or defects. Any connectors or cable installed by the customer must be removed completely without damaging the PCB eyelet’s, conductors and terminals.

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SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

8. IMAGE STICKING
8.1 What is Image Sticking?
If you remain a fixed image on Graphic Display for a long period of time, you may experience a phenomenon called Image Sticking. Image Sticking – sometimes also called “image retention” or “ghosting”- is a phenomenon where a faint outline of a previously displayed image remains visible on the screen when the image is changed. It can occur at variable levels of intensity depending on the specific image makeup, as well as the amount of time the core image elements are allowed to remain unchanged on the screen. In POS applications, for example, a button menu which remains fixed, or in which the “frame” elements (core image) remain fixed and the buttons may change, may be susceptible to image sticking. It is important to note that if the screen is used exclusively for this application, the user may never notice this phenomenon since the screen never displays other content. `It is only when an image other than the “retained” image is shown on the screen that this issue becomes evident. Image sticking is different that the “burn-in” effect commonly associated with phosphor based devices.
8.2 What causes Image Sticking?
Image sticking is an intrinsic behavior of Graphic displays due to the susceptibility to polarization of the interior materials (liquid crystals) when used under static, charged conditions (continuously displaying the same image). The individual liquid crystals in an Graphic panel have unique electrical properties. Displaying a fixed pattern – such as the POS menu described above ­ over prolonged periods can cause a parasitic charge build-up (polarization) within the liquid crystals which affects the crystals’ optical properties and ultimately prevents the liquid crystal from returning to its normal, relaxed state when the pattern is finally changed. This effect takes place at a cellular level within the Panel, and the effect can cause charged crystal alignment at the bottom or top of a crystal cell in the “z” axis, or even crystal migration to the edges of a cell, again based on their polarity. These conditions can cause image sticking over an entire area, or at boundaries of distinct color change respectively. In either case, when the liquid crystals in the pixels and sub-pixels utilized to display the static image are polarized such that they can not return fully to their “relaxed” state upon deactivation, the result is a faint, visible, retained image on the panel upon presentation of a new, different image. The actual rate of image retention depends on variation factors such as the specific image, how long it is displayed unchanged, the temperature within the panel and even the specific panel brand due to manufacturing differences amongst panel manufacturers.

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SHENZHEN SURENOO TECHNOLOGY CO.,LTD.

Model No.: SL3AG320240A

8.3 How to Avoid Image Sticking?
– Try not to operate the Graphic with a “fixed” image on the screen for more than 2 hours. – If you are operating the monitor in an elevated temperature environment and with a displayed image which is contrary to the recommendations in “For Software Developers” below, image stick can occur in as little as 30 minutes. Adjust your screen saver settings accordingly. – Power down the unit during prolonged periods of inactivity such as the hours a store is closed or a shift during which the piece of equipment isn’t used. – Use a screensaver with a black or medium gray background that is automatically set to come on if the device is inactive for more than 5-10 minutes. – Avoid placing the monitor in poorly ventilated areas or in areas that will create excess heat around the monitor for software developers. – In defining the icons, buttons, or windows in the screen, try to utilize block patterns instead of distinct lines as borders for dividing the display into distinct areas. – If it is necessary to display a static image, try to use colors that are symmetric to the middle grey level at the boundary of two different colors, and slightly shift the borders line once in a while. – Try to utilize medium gray hues for those areas that will have prolonged display times or remain static as other menu elements change.
8.4 How to Fix the Image Sticking?
Unlike the usually irreversible “burn-in” effects commonly associated with direct view phosphor display devices such as CRTs, an image retained on an Graphic display can be reversed ­ often to a point of total invisibility. However, the severity of the underlying causes (as described above) of the image retained on a specific display, as well as the variation factors (see “For Software Developers” above) under which the retained image was created, will dictate the final level of retention reversal. One way to erase a retained image on a panel is to run the screen (monitor “on”) in an “all black” pattern for 4-6 hours. It is also helpful to do this in an elevated temperature environment of approximately 35º to 50ºC. Again, utilizing a dynamic screen saver with an all black background during prolonged idle display periods is a good way to avoid image retention issues.
8.5 Is Image Sticking Covered by Surenoo RMA Warranty?
Image sticking is a phenomenon inherent to Graphic Display technology itself, and as such, the occurrence of this”ghosting” effect is considered normal operation by the manufacturers of the Graphic display modules which are integrated into today’s monitor solutions. Surenoo does not warrant any display against the occurrence of image sticking. We strongly advise that you follow the operating recommendations listed above to avoid the occurrence of this phenomenon.

That’s the end of the datasheet.

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References

• Surenoo Display

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