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1.8inch lcd display

►Small LCD Display
►1.77″ TFT Display Screen
►Resolution : 128×160 dots
►View Direction: 12 o’clock
►Interface: MCU
►Driver IC: ST7735S
►RTP/CTP : Optional
►Brightness(cd/m²): 380
►Outline Dimension: 34.70(W)* 46.70(H) *2.30(T)mm

Category:

DESCRIPTION

1.8″ TFT lcd screen display

K177B2014 is a 1.8 inch tft LCD display module 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 K177B2014 inch module has built-in ST7735S controller IC, supports MCU 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 a coffee machine , medical equipment and other POS systems ideal. The module can operate at temperatures from -20°C to +70°C; its storage temperature range is -30°C to +80°C.

General Specifications

SPECIFICATIONS

Item Contents Unit
Size 1.77 inch
LCM Dimension 34.70(W)* 46.70(H) *2.30(T) mm
LCD Active Area 28.03* 35.04 mm
Number Of Dots 128×160 pixel
LCD Type a-Si TFT
Viewing Direction 12 o’clock
Driver IC ST7735S
Interface Type MCU
Operating Temperature -20℃~ 70℃
Storage Temperature -30℃~ 80℃
Backlight Type 2 LEDs
Brightness 380  cd/m2

DRAWING

1.8inch tft lcd

 

Interface

LCM PIN Definition

NO. Symbol Description
1 LEDK BACKLIGHT CATHODE
2 LEDA BACKLIGHT ANODE
3 GND Ground
4 VCC POWER SUPPLY
5 IOVCC I/O   POWER SUPPLY
6 TE Frame mark.
7 CS Chip enable, Low-active.
8 RESET Reset pin
9 RS Data/Command register address.
10 WR Write signal, rising-edge-trigger.
11 RD Read signal, rising-edge-active.
12 DB7 Data Bus
13 DB6 Data Bus
14 DB5 Data Bus
15 DB4 Data Bus
16 DB3 Data Bus
17 DB2 Data Bus
18 DB1 Data Bus
19 DB0 Data Bus
20 GND Ground

DC Characteristics

Item Symbol Min Typ Max Unit
TFT gate on voltage VGH 15 V
TFT gate off voltage VGL -10 V
TFT common electrode Voltage Vcom -1 V

Typical Operation Conditions

Item Symbol Min. Typ. Max. Unit
Analog Supply Voltage

 

VCI 2.5 2.8 3.3 V
Digital Supply Voltage

 

VDD 2.5 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 30 40 mA
LED Voltage Vf 2.8 3.0 3.2 V
CIE X 0.265 0.295 0.325
Y 0.26 0.29 0.32
Brightness of LCM L 380 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
for a total 24 cycles;
2.Non-display;
 

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.
150pF/330Ω;
±8KV, Air Mode, 150pF/330Ω;

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Weight 1 kg
Dimensions 25 × 25 × 25 cm

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