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1.77 inch tft lcd display screen

►Resolution : 128×160 dots
►View Direction: 12 o’clock
►Interface: SPI
►Driver IC: ST7735S
►RTP/CTP : optional
►Brightness(cd/m²): 380
►Outline Dimension: 33.30(W)* 42.94(H) *2.30(T)mm


H177B1201 is a 1.8 inch tft lcd screen with optional resistive touch screen and capacitive touch screen control with a resolution of 128×160 pixels. This small size TFT LCD monitor is portrait mode with wider viewing angle by POL adjustment, Left: 40 / Right: 40 / Top: 40 / Bottom: 40 degrees (typical).Optional RTP or CTP.

This H177B1201 inch module has built-in ST7735S controller IC, supports SPI interface, the power supply voltage (VCC) range is 3.0V to 3.6V, the brightness is 380 nits (typ), and the contrast ratio is 800: 1. This module is an instrumentation , ideal for POS machines, etc. The module can operate at temperatures from -20°C to +70°C; its storage temperature range is -30°C to +80°C.

General Specifications


LCM Dimension33.30(W)* 42.94(H) *2.30(T)mm
LCD Active Area28.03* 35.04mm
Number Of Dots128×160pixel
LCD Typea-Si TFT
Viewing Direction12 o’clock
Driver ICST7735S
Interface TypeSPI
Operating Temperature-20℃~ 70℃
Storage Temperature-30℃~ 80℃
Backlight Type2 LEDs




LCM PIN Definition

1LEDKBacklight cathode.
2LEDABacklight anode.
3VCCAnalog power supply.
4IOVCCInterface circuit power supply.
5TEFrame mark.
6CSChip enable, Low-active.
7RESETReset signal, keep Low for more than 10ms after power-on.
8AODestination register selection.
9SCLSPI clock signal, rising-edge-trigger.
10SDASPI data signal.
11GNDPower supply Ground.
12GNDPower supply Ground.

DC Characteristics

TFT gate on voltageVGH15V
TFT gate off voltageVGL-10V
TFT common electrode VoltageVcom-1V

Typical Operation Conditions

Analog Supply VoltageVCI2.52.83.3V
Digital Supply VoltageVDD2.52.83.3V
I/O Supply VoltageIOVCC1.651.8/2.83.3V
Input High VoltageVIH0.8*IOVCCIOVCCV
Input Low VoltageVIL00.2*IOVCCV
Output High VoltageVOH0.8*IOVCCV
Output Low VoltageVOL0.2*IOVCCV

Backlight Circuit Characteristics

LED CurrentIB3040mA
LED VoltageVf2.83.03.2V
Brightness of LCML380cd/m2

Reliability Test Items

Test ItemTest ConditionTest result determinant gist
High temperature storage80±3 ℃,48H;
Low temperature storage-30±3 ℃,48H;
High temperature storage70±3 ℃,48H;Inspection after 2~4hours storage at roomtemperature,
Low temperature operation-20±3 ℃,48H;the sample shall be free from defects:
High temperature/humidity60℃±3 ℃,90%±3%RH ,48H;1.Air bubble in the LCD;
Thermal Shock~20℃/0.5h~+70℃/0.5h
for a total 24 cycles;

Vibration Test

Frequency 10Hz~55Hz~10Hz3.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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