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3.97inch tft lcd display screen

►3.97″ TFT Display Screen
►Resolution : 480×800 dots
►View Direction: IPS
►Interface: MIPI
►Driver IC: ST7701S
►RTP/CTP: Optional
►Brightness(cd/m²): 480
►Outline Dimension: 57.14(W)* 96.85(H) * 1.85(T) mm



3.97″ TFT lcd screen display

HC-397BS2503 is a 3.97 inch tft LCD display module with optional resistive touch screen and capacitive touch screen control with a resolution of 480×800 pixels. This size TFT LCD monitor is portrait mode, TFT panel adopts IPS panel, Left: 80/Right: 80/ Top: 80/ Bottom: 80 degrees (typical). Optional RTP or CTP.

This HC-397BS2503 module has built-in ST7701S controller IC, supports MIPI interface, the power supply voltage (VCC) range is 3.0V to 3.6V, the brightness is 480 nits (typ), and the contrast ratio is 800:1. This module is a beauty Industrial ideal for equipment, medical instruments, etc. The module can operate from -10°C to +70°C; its storage temperature range is -20°C to +80°C


3.97inch tft lcd display screen


General Specifications

Item Contents Unit
Size 3.97 inch
LCM Dimension 57.14(W)* 96.85(H) * 1.85(T) mm
LCD Active Area 51.84 * 86.40 mm
Number Of Dots 480×800 pixel
LCD Type a-Si TFT
Viewing Direction IPS
Driver IC ST7701S
Interface Type MIPI
Operating Temperature -10℃~ 70℃
Storage Temperature -20℃~ 80℃
Backlight Type 8 LEDs
Brightness 480 cd/m2


LCM PIN Definition

NO. Symbol Description
2 NC Not  Connect
4 GND Ground
5 LCM-ID Not  Connect
6 TE Serves TE (Tearing Effect ) pin on MPU interface
9 RESET Reset Pin
10 GND Ground
11 NC Not  Connect
12 NC Not  Connect
13 GND Ground
14 TDP1 MIPI-DSI Data differential signal input pins. (Data lane 1)
15 TDN1 MIPI-DSI Data differential signal input pins. (Data lane 1)
16 GND Ground
17 TCP MIPI-DSI CLOCK differential signal input pin
18 TCN MIPI-DSI CLOCK differential signal input pin
19 GND Ground
20 TDN0 MIPI-DSI Data differential signal input pins. (Data lane 0)
21 TDP0 MIPI-DSI Data differential signal input pins. (Data lane 0)
22 GND Ground
23 NC Not  Connect
24 NC Not  Connect
25 GND Ground

DC Characteristics

Item Symbol Min Typ Max Unit
TFT gate on voltage VGH 12 18 V
TFT gate off voltage VGL -15 -11 V
TFT common electrode Voltage Vcom -2 0 V

Typical Operation Conditions

Item Symbol Min. Typ. Max. Unit
Analog Supply Voltage VCI 2.65 2.8 3.3 V
Digital Supply Voltage VDD 2.65 2.8 3.3 V
I/O Supply Voltage IOVCC 1.65 1.8/2.8 3.3 V
Input High Voltage VIH 0.8*IOVCC IOVCC V
Input Low Voltage VIL 0 0.2*IOVCC V
Output High Voltage VOH 0.8*IOVCC V
Output Low Voltage VOL 0.2*IOVCC V

Backlight Circuit Characteristics

Item Symbol Min. Typ. Max. Unit
LED Current IB 40 mA
LED Voltage Vf 11.2 12.8 V
CIE X 0.265 0.285 0.305
Y 0.26 0.28 0.30
Brightness of LCM L 480 cd/m2

Reliability Test Items

Test Item Test Condition Test result determinant gist
High temperature storage 80±3 ℃,48H;
Low temperature storage -30±3 ℃,48H;
High temperature storage 70±3 ℃,48H; Inspection after 2~4hours storage at roomtemperature,
Low temperature operation -20±3 ℃,48H; the sample shall be free from defects:
High temperature/humidity 60℃±3 ℃,90%±3%RH ,48H; 1.Air bubble in the LCD;
Thermal Shock -20℃/0.5h~+70℃/0.5h 2.Non-display;
for a total 24 cycles;

Vibration Test

Frequency 10Hz~55Hz~10Hz 3.Glass crack;
Amplitude:1.5mm, X,Y,Z
direction for total 1H; 4. The electrical
(Packing condition)

ESD test

±4KV, Human Body Mode, characteristics requirements shall be satisfied.
±8KV, Air Mode, 150pF/330Ω;

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Weight 1 kg
Dimensions 40 × 30 × 20 cm


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