Shenzhen Yetai Optoelectronics Technology Co.,Ltd.
Model No.: TXW114002S0
Payment Type: T/T
LCD (Liquid Crystal Display) is a type of flat panel display which uses liquid crystals in its primary form of operation. LEDs have a large and varying set of use cases for consumers and businesses, as they can be commonly found in smartphones, televisions, computer monitors and instrument panels. A liquid crystal display or LCD draws its definition from its name itself. It is a combination of two states of matter, the solid and the liquid. LCD uses a liquid crystal to produce a visible image. Liquid crystal displays are super-thin technology display screens that are generally used in laptop computer screens, TVs, cell phones, and portable video games.
This specification applies to the LCD module that is supplied by TIAN XIAN WEI TECHNOLOGY CO., LTD.
LCD specification: Dots 135xRGBx240
As to basic specification of the driver IC, refer to the IC (Sitronix:ST7789V2) specification and data book.
All material & processing of the LCD module should be Lead Free.
1.2 TFT features:
Structure: TFT PANNEL+IC +FPC+BL; IPS Type LCD
135 dot-segment and 240 dot-common outputs; 65K Color can be selected by software;
White LED back light;
4-line Seria interface
1.3 Applications:
2. LCM General specification
| ITEM | Sandard value | Unit |
| LCD Type | Normally Black | -- |
| Drive element | TFT active matrix | -- |
| Number of pixels | 135*3RGB(H)X240 (V) | Dots |
| Pixel arrangement | RGB Vertical stripe | -- |
| Pixel Pitch (H*V) | 0.1101(H) x0.1038 (V) | mm |
| Active area | 14.86(H) x 24.91(V) | mm |
| Module Size(W*H*T) | 17.60(W)x31.00(H)x1.61(T) | mm |
| Viewing direction | ALL O’CLOCK |
|
| TFT Driver IC | ST7789V2 | - |
| TFT interface | 4-line Seria Interface | - |
| Approx. Weight | TBD | g |
| Touch structure |
|
|
| Touch Driver IC |
| - |
| Touch Interface |
|
|
3. VIEWING DIRECTION: ALL
4. DRIVER IC:ST7789V2
5. LCM (White 9 AVG 1/9) : Brightness: TBDcd/m2 (TYP) Uniformity:80%(MIN)
6. BACK LIGHT: 1 chip white LEDs If=20mA,Vf=2.8V-3.2V
7. OPERATING TEMP: -10°C TO 60°C,STORAGE TEMP: -20°C TO 70°C
8. * Critical Parameter,( ) ref Parameter,[ ] cpk Parameter Unspecified Tolerances:±0.20mm
Modification mark:
LEDA
LEDK
SUGGESTION:TP window size unilaterl increase 0.3~0.5mm than LCM A.A 10.REQUIREMENTS ENVIRONMENTAL PROTECTION: RoHS
| Characteristics | Symbol | Min. | Max. | Unit |
| LCM Operating Temperature | TOPR | -20 | +60 | °C |
| LCM Storage Temperature | TSTG | -30 | +70 | °C |
| Humidity | RH | - | 90 | % |
4. Electrical Characteristics
4.1 TFT DC Characteristics
| Characteristics | Symbol | Min. | Typ. | Max. | Unit |
| Supply Voltage for I/O | VDDIO | -- | -- | -- | V |
| Supply Voltage for(DC/DC) | VDD | 2.7 | 2.8 | 3.3 | V |
| Supply Voltage for(DC/DC) | AVDD |
|
|
| V |
| Supply Voltage for(DC/DC) | AVEE |
|
|
| V |
The back-light system is an edge-lighting type with 1 white LEDs. The characteristics of the back-light are shown in the following tables.
| Characteristics | Symbol | Min. | Type | Max. | Unit | Notes |
| Forward Voltage | VF | 2.8 | - | 3.2 | V | - |
| Forward current | IF | -- | 20 | - | mA | - |
| Luminance(With LCD) | Lv |
| TBD | -- | cd/m2 | - |
| LED life time | N/A | ---- | 30,000 | -- | Hr | Note 1 |
Note:
(1) The “LED life time” is defined as the module brightness decrease to 50% of original brightness at IL=20mA/LED. The LED life time could be decreased if operating IL is larger than 25mA/LED.
Backlight circuit diagram shown in below:
5.1 LCM Pin Descriptions
|
1 |
NC |
NC |
|
2 |
NC |
NC |
|
3 |
SDA |
input/output signal pin |
|
4 |
SCL |
Synchronous clock signal pin |
|
5 |
RS |
Display data/command selection pin |
|
6 |
RESET |
Reset signal input terminal. Active at ‘L’. |
|
7 |
CS |
Chip select signal input pin |
|
8 |
GND |
Gound |
|
9 |
NC |
NC |
|
10 |
VDD |
PINPOWER SUPPLY（2.8-3.3V） |
|
11 |
LEDK |
Power supply for backlight cathode input terminal. |
|
12 |
LEDA |
Power supply for backlight anode input terminal. |
|
13 |
GND |
Gound |
7.2 Measuring Condition
■ Measuring surrounding : dark room
■ Ambient temperature : 25±2oC
■ 15min. warm-up time.
FPM520 of Westar Display technologies, INC., which utilized SR-3 for Chromaticity and BM-5A for other optical characteristics.
| No. | Test Item | Test Condition | Notes |
| 1 | High Temp. Storage | +70°C / 96H | 1. Functional test isOK. Missing Segment,short, unclear segment non-display,display abnormally and liquid crystal leakare un-allowed. 2. No low temperature bubbles,end seal loose andfall, frame rainbow. |
| 2 | Low Temp. Storage | -30°C / 96H | |
| 3 | High Tempe. Operating | +60°C / 96H | |
| 4 | Low Tempe. Operating | -20°C / 96H | |
| 5 | High Temperature /Humidity storage | 50°C x 90%RH /96H | |
|
6 |
Thermal and cold shock |
Static state， -20℃（30min） ~60℃ （30min），50 cycles |
9. Packing Method TBD
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Product Categories : TFT LCD > 1.14 Inch TFT LCD
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