1.77 inch tft lcd display
►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 * 46.70 *2.30(mm)
DESCRIPTION
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
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； |
Search keyword: tft 1.8″, 1.8 tft lcd, 1.8″ tft lcd, 1.8 inch tft lcd, tft lcd 1.8, 1.8 tft display, 1.8″ tft display, 1.8 inch tft display, tft display 1.8, tft display 1.8″,mini lcd display,mini tn,mini tft lcd,small tft lcd.
