2.8 inch lcd display screen
►Resolution : 240×400 dots
►View Direction: 12 o’clock
►Interface: MCU
►Driver IC: ST7793
►RTP/CTP: Optional
►Brightness(cd/m²): 380
►Outline Dimension: 43.80 * 71.92* 2.35(mm)
2.8 inch LCD display screen suppliers are providing 2.8 inch LCD display screens all over the world. 2.8 inch LCD display screen is a kind of Liquid Crystal Display that is composed of color filters, polarizers, and liquid crystals.
2.8 inch LCDs are used in various industrial, scientific, medical, and consumer electronics applications such as notebook computers, cell phones, digital cameras, camcorders, televisions, gaming devices and instrument panels.
2.8 inch LCDs have many advantages over other types of displays such as CRTs, plasma displays and OLEDs. They are more energy efficient, have lower power consumption, produce less heat and are lighter in weight.
2.8 inch LCDs are also more durable than CRTs and plasma displays. 2.8 inch LCDs can be operated in a wide range of temperatures and humidities without degradation.
2.8 inch LCDs are available in various resolutions, sizes and shapes to meet the needs of different applications. 2.8 inch LCD display screens are used in various industrial, scientific, medical, and consumer electronics applications such as notebook computers
DESCRIPTION
HC-280HY4001A is a 2.8 inch LCD screen screen module with optional resistive touch screen and capacitive touch screen control, with a resolution of 240×400 pixels. This size TFT LCD monitor is portrait mode with wider viewing angle by POL adjustment, left: 45/right: 45/up: 50/down: 20 degrees (typical).Optional RTP or CTP.
This HC-280HY4001A module has built-in ST7793 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 instrumentation , communication equipment and other industrial ideal choice. The module can operate at temperatures from -20°C to +70°C; its storage temperature range is -30°C to +80°C.
DRAWING
SPECIFICATIONS
General Specifications
| Item | Contents | Unit |
| Size | 2.8 | inch |
| LCM Dimension | 43.80（W）* 71.92（H） * 2.35(T) | mm |
| LCD Active Area | 36.72* 61.20 | mm |
| Number Of Dots | 240×400 | pixel |
| LCD Type | a-Si TFT | |
| Viewing Direction | 12 o’clock | |
| Driver IC | ST7793 | |
| Interface Type | MCU | |
| Operating Temperature | -20℃~ 70℃ | |
| Storage Temperature | -30℃~ 80℃ | |
| Backlight Type | 4 LEDs | |
| Brightness | 380 | Cd/m2 |
Interface
LCM PIN Definition
| NO. | Symbol | Description |
| 1-5 | NC | NC |
| 6 | GND | Ground |
| 7 | IOVCC | I/O POWER SUPPLY |
| 8 | VCC | POWER SUPPLY |
| 9 | NC | NC |
| 10 | CS | Chip enable, Low-active. |
| 11 | RS | Data/Command register address. |
| 12 | WR | Write signal, rising-edge-trigger. |
| 13 | RD | Read signal, rising-edge-active. |
| 14-21 | NC | NC |
| 22-29 | DB8-DB15 | Data Bus |
| 30 | RESET | Reset pin |
| 31 | GND | Ground |
| 32 | LEDA | BACKLIGHT ANODE |
| 33 | LEDK1 | BACKLIGHT CATHODE |
| 34 | LEDK2 | BACKLIGHT CATHODE |
| 35 | LEDK3 | BACKLIGHT CATHODE |
| 36 | LEDK4 | BACKLIGHT CATHODE |
| 37 | NC | NC |
| 38 | GND | Ground |
| 39 | NC | NC |
| 40 | NC | NC |
DC Characteristics
| Item | Symbol | Min | Typ | Max | Unit |
| TFT gate on voltage | VGH | — | 15 | — | V |
| TFT gate off voltage | VGL | — | -7.5 | — | 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 | — | 60 | 80 | 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 temperaturehumi/dity | 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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