Shenzhen Yetai Optoelectronics Technology Co.,Ltd.
Model No.: 154017S1-LCM
Payment Type: T/T
Standard small to mid-size color TFT displays
Increase your product’s appeal with a TFT Lcd Display from YeTai! TFT displays are liquid-crystal display modules with thin-film transistor technology. This TFT technology offers full RGB showcasing a range of colors and hues. Get rich colors, detailed images, and bright graphics from an LCD with a TFT screen.
W额offers a range of small to mid-size TFT LCDs. Our standard lineup for our TFT screens starts at 1” in diagonal size and ranges up to 7-inches. Our TFT displays meet the needs for products within industrial, medical, and consumer applications.
1. Introduction
1.1 Scope of application
This specification applies to the LCD module that is supplied by Tian Xian Wei
Technology CO., LTD.
LCD specification: Dots 240xRGBx240.
As to basic specification of the driver IC, refer to the IC (ST7789V)
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
240dot-segment and 240 dot-common outputs;
65K Color can be selected by software;
White LED back light;
4-line 8bit serial interface
1.3 Applications:
2. LCM General specification
| ITEM | Sandard value | Unit |
| LCD Type | Normally black | -- |
| Drive element | TFT active matrix | -- |
| Number of pixels | 240*3RGB(H)X240(V) | Dots |
| Pixel arrangement | RGB stripe | -- |
| Pixel Pitch (W*H) | 0.1155(W) × 0.1155(H) | mm |
| Active area | 27.72(W) ×27.72 (H) | mm |
| Viewing direction | ALL O’CLOCK | - |
| TFT Driver IC | ST7789V |
|
| TFT interface | 4-line 8bit serial interface | - |
| Module Size(W*H*T) | 31.52(W) ×33.72(H) ×2.04(D) | mm |
| Approx. Weight | TBD | g |
| Touch structure |
|
|
| Touch Driver IC |
| - |
| Touch Interface |
|
|
3.Absolute Maximum Rating
| Characteristics | Symbol | Min. | Max. | Unit |
| LCM Operating Temperature | TOPR | -20 | +70 | °C |
| LCM Storage Temperature | TSTG | -30 | +80 | °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 | 2.5 | 2.8 | 3.6 | V |
| Supply Voltage for(DC/DC) | AVDD |
|
|
| V |
| Supply Voltage for(DC/DC) | AVEE |
|
|
| V |
4.2 Back-Light Unit Characeristics
The back-light system is an edge-lighting type with 3 white LEDs. The characteristics of the back-light are shown in the following tables.
| Characteristics | Symbol | Min. | Type | Max. | Unit | Notes |
| Forward Voltage | VF | 2.9 | -- | 3.3 | V | - |
| Forward current | IF | -- | 60 | - | mA | - |
| Luminance(With LCD) | Lv |
| TBD | -- | cd/m2 | - |
| LED life time | N/A | ---- | 50,000 | -- | 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. Module Function Description
| Pin No. | Symbol | Description |
| 1 | VCC | POWER SUPPLY |
| 2 | RESET | Hardware reset |
| 3 | SDO | SPI interface output pin |
| 4 | CS | Chip selection pin |
| 5 | SCL | Serial interface clock |
| 6 | VSS | System Ground |
| 7 | SDA | SPI interface Input pin |
| 8 | RS | Display data/command selection pin in 4-line serial interface |
| 9 | TE | Tearing effect signal is used to synchronize MCU to frame memory |
| 10 | LEDA | BACKLIGHT + |
| 11 | LEDK | BACKLIGHT- |
6. Timing Characteristics
7.Optical Characteristics
| Items | Symbol | Condition | Specifications | Unit | All left side data are based on TIAN XIAN WEI product reference only | |||
| Min. | Typ. | Max. | ||||||
| Contrast Ratio | CR |
| - | 800 | - | - | ||
| Response Time | TBRB + TBFB | - | 30 | - | ms | |||
|
| - | - | - | ms | ||||
| Chromaticity | Red | XBRB |
| / |
| - | ||
| YBRB |
| / |
| - | ||||
| Green | XBGB |
| / |
| - | |||
| YBGB |
| / |
| - | ||||
| Blue | XBBB |
| / |
| - | |||
| YBBB |
| / |
| - | ||||
| White | XBWB | 0.28 | 0.31 | 0.34 | - | |||
| YBWB | 0.29 | 0.32 | 0.35 | - | ||||
| Viewing angle | Hor. | f1(3 o’clock) | Center CR≥10 | - | 80 | - | deg. | |
| f2(9 o’clock) | - | 80 | - | |||||
| Ver. | q2(12 o’clock) | - | 80 | - | ||||
| q1(6 o’clock) | - | 80 | - | |||||
| Uniformity |
|
|
|
| -- |
| % | |
Note 1: Definition of Contrast Ratio (CR):
The contrast ratio can be calculated by the following expression.
Contrast Ratio (CR) = L63 / L0
L63: Luminance of gray level 63
L0: Luminance of gray level 0
CR = CR (10)
CR (X) is corresponding to the Contrast Ratio of the point X at Figure in Note 5.
Note 2: Definition of Response Time (TR, TF):
Note 3: Viewing Angle
The above “Viewing Angle” is the measuring position with Largest Contrast Ratio; not for good
image quality. View Direction for good image quality is 6 O’clock. Module maker can increase
the “Viewing Angle” by applying Wide View Film.
Note 4: Measurement Set-Up:
The LCD module should be stabilized at a given temperature for 20 minutes to avoid abrupt
temperature change during measuring. In order to stabilize the luminance, the measurement
should be executed after lighting Backlight for 20 minutes in a windless room.
8. Reliability Test Item
| No. | Test Item | Test Condition | Notes |
| 1 | High Temp. Storage | +80°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 | +70°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
- END -
Product Categories : TFT LCD > 1.54 Inch TFT LCD
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