1. Display Characteristics
| Parameter | Specification | Notes |
|---|---|---|
| Model Number | HTT057A02 | Primary model in the series -1-3-4 |
| Display Type | Monochrome TFT (Thin Film Transistor) | Single color (e.g., white, yellow-green, or blue on dark background) -1-2-6 |
| Display Size (Diagonal) | 5.7 inches | -1-2-6 |
| Resolution (Pixels) | 320 x 240 (QVGA) | -1-3-4 |
| Active Area (AA) | 115.2 (H) x 86.16 (V) mm | -1-2-6 |
| Viewing Area (VA) | 121.0 (H) x 91.6 (V) mm | -3-4-5 |
| Outline Dimensions | 151.7 (W) x 111.0 (H) x (6.5-6.7) (D) mm | Some sources list 159.2x111.0x6.7mm for a different variant -1-2-4 |
| Dot Pitch | 0.36 (H) x 0.36 (V) mm | -1-3-4 |
| Viewing Direction | 6 o'clock or FULL (Wide viewing angle) | Specified as 6H, 6 o'clock, or full视角 -1-2-3 |
| Backlight / Brightness | LED backlight, 500 cd/m² (Typ.) | Ensures excellent sunlight readability -1-2-6 |
| Contrast Ratio | Up to 1000:1 | -5 |
2. Electrical Characteristics
3. Pin Configuration (20-pin Interface) -1
| Pin No. | Pin Name | Description |
|---|---|---|
| 1 | VSS | Power Supply Ground (0V) |
| 2 | VDD | Power Supply (+3.3V) |
| 3 | NC | No Connect |
| 4 | RS | Data/Command Identification Pin |
| 5 | /WR | Write Signal |
| 6 | /RD | Read Signal |
| 7-14 | DB0-DB7 | 8-bit Data Bus Lines |
| 15 | /CS | Chip Select Input Pin for LCD |
| 16 | /RST | Reset Signal |
| 17 | CS# | Chip Select Input Pin for ZK (optional controller) |
| 18 | SO | Serial Data Output for ZK (optional controller) |
| 19 | FGND | Frame Ground (Equipment GND) |
| 20 | LEDA | Backlight Enable Pin (High to enable) |
4. Environmental & Reliability Specifications
5. Key Features & Applications
| Feature / Application | Description |
|---|---|
| Key Features | High brightness (500 cd/m²) -1-2. High contrast ratio (up to 1000:1) -5. Sunlight readable -3-5-8. Wide operating temperature range -5-8. Fast response time -3-5. RoHS compliant |
| Typical Applications | Outdoor instrumentation and meters -1-2. Medical equipment. Industrial control panels (HMI) -6. Automotive displays. POS terminals, fax machines, and office equipment |
