ESEN HK LIMITED
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1.54 inch 240x240 IPS Square Watch TFT LCD Screen Module ST7789V SPI LCD Display Touch Panel Optional
Screen uses 3 lines and 2 channels
Electrical Specification
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 |
AC Characteristics
Refer to the SPEC of ST7789V
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 | -- | 45 | 60 | 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 | -- | -- | -- | cd/m2 |
FAQ
Q: Can you customize products? What can be customized? A: We offer customization services. Due to the different mold costs of TFT-LCD modules, including FPC, touch screen, backlight, frame, display interface and other different requirements. Please inform us of the specific matters via email. We will have professionals serve you.
Q: Can you provide drawings and related procedures?
A: We can provide drawings and procedures for customers to confirm.
Q:How to control the quality of products? A:The company has a professional quality team, and all products are 100% inspected before shipment.
Q:How long is the warranty and service of the product?
A:Generally the warranty period is one year. It depends on different products.We guarantee our products to be free from manufacturer defects. Liability under this warranty is limited to the replacing of any product found to be defective under normal use.