3.5 inch lcd display
►Resolution : 320×480 dots
►View Direction: IPS
►Interface: RGB(18bit)
►Driver IC: ST7796S
►Brightness(cd/m²): 480
►Outline Dimension: 54.48 * 84.71 * 2.3(mm）
►RTP/CTP: Optiona
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DESCRIPTION
H35J4502 is a 3.5inch LCD display in Italy display module with optional resistive touch screen and capacitive touch screen control with a resolution of 320×480 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 H35J4502 module has built-in ST7796S controller IC, supports RGB (18bit) 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. The module is Ideal for industries such as beauty equipment, communication equipment, etc. The module can operate from -20°C to +70°C; its storage temperature range is -30°C to +80°C
DRAWING
SPECIFICATIONS
General Specifications
| Item | Contents | Unit |
| Size | 3.5 | inch |
| LCM Dimension | 54.48（W）* 84.71（H） * 2.3(T) | mm |
| LCD Active Area | 48.96 * 73.44 | mm |
| Number Of Dots | 320×480 | pixel |
| LCD Type | a-Si TFT | |
| Viewing Direction | IPS | |
| Driver IC | ST7796S | |
| Interface Type | RGB(18bit) | |
| Operating Temperature | -20℃~ 70℃ | |
| Storage Temperature | -30℃~ 80℃ | |
| Backlight Type | 6 LEDs | |
| Brightness | 480 | cd/m2 |
Interface
LCM PIN Definition
| NO. | Symbol | Description |
| 1 | GND | Ground |
| 2 | LEDA | BACKLIGHT ANODE |
| 3 | LEDA | BACKLIGHT ANODE |
| 4 | LEDK | BACKLIGHT CATHODE |
| 5 | LEDK | BACKLIGHT CATHODE |
| 6 | GND | Ground |
| 7 | GND | Ground |
| 8 | VCC | POWER SUPPLY |
| 9 | IOVCC | I/O POWER SUPPLY |
| 10 | RESET | Reset pin |
| 11 | VSYNC | Frame Synchronizing Signal |
| 12 | HSYNC | Line Synchronizing Signal |
| 13 | GND | Ground |
| 14 | DOTCLK | Dot Clock Signa |
| 15 | GND | Ground |
| 16 | DE | Data Enable Signal |
| 17-34 | DB17-DB0 | Data Bus |
| 35 | SDO | Serial Data Output |
| 36 | SDI | Serial Data Input |
| 37 | RD | Read signal, rising-edge-active. |
| 38 | WR/SCL | Write signal, rising-edge-trigger./Serial Clock |
| 39 | D/CX | Data/Command registor selection. |
| 40 | CS | Chip Select |
| 41 | TE | Frame mark. |
| 42 | XR | Touch Panel Right |
| 43 | YD | Touch Panel Down |
| 44 | XL | Touch Panel Left |
| 45 | YU | Touch Panel Up |
DC Characteristics
| Item | Symbol | Min | Typ | Max | Unit |
| TFT gate on voltage | VGH | 14.5 | 15 | 15.5 | V |
| TFT gate off voltage | VGL | -10.5 | -10 | -9.5 | V |
| TFT common electrode Voltage | Vcom | — | -1.18 | — | 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 | – | 20 | – | mA |
| LED Voltage | Vf | 18.60 | — | 19.20 | V |
| CIE | X | 0.305 | 0.335 | 0.365 | |
| Y | 0.345 | 0.375 | 0.395 | ||
| Brightness of LCM | L | 350 | 480 | cd/m2 |
Reliability Test Items
| Test Item | Test Parameters | Key factors for determining test results |
| 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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