1.54-inch 240x240 tft display，Rectangular display
1.54-inch 240×240 display module is widely used in various equipment, the interface has RGB, SPI for choice
Main parameters of 1.54-inch tft display
| ITEM | Standard value | UNIT |
| LCD SIZE | 1.54 | INCH |
| LCD Type | Normally black | — |
| Driver Element | a-Si TFT Active matrix | — |
| Number of Dots | 240*(RGB)*240 | Dots |
| Pixel Arrangement | RGB Vertical Stripe | — |
| Pixel Pitch (W*H) | 0.1155*0.1155 | mm |
| Active Area | 27.72*27.72 | mm |
| Glass Area (W*H) | 30.12*30.12 | mm |
| Viewing Direction | all view | — |
| Control IC | ST7789 | — |
| Module Size(W*H*T) | 31.52(W)*33.72(L)*1.9(H) | mm |
| Approx. Weight | TBD | g |
| Back Light | White LED | |
Download relevant technical documents
ST7789 data sheet for small lcd display
Specification of 1.54-inch small lcd display
Circuit diagram for 1.54-inch small lcd display
Customize the length, width and thickness of FPC or cable, adjust the pin arrangement according to the interface type, and select the appropriate connector. Make your display or circuit board simple and safe with an excellent FPC solution.
A touch screen can be added according to your requirements, there are three options: resistive touch screen, capacitive touch screen, infrared touch screen. Or add protective glass as needed
Display screens with different optical parameters can be designed according to needs, such as brightness, color gamut, response time, gamma and other parameters, and anti-glare, anti-fingerprint coatings, etc. can also be added
The circuit board we designed can convert the interface of your display into an HDMI interface. If your product does not have any display control capabilities, you can use our serial display and only need to use simple commands to control the displayed content through RS232/458
1.54-inch tft display drawings and interfaces
1.54 inches IPS mode LCD screen, resolution 240×240, drive IC ST7789, 4-wire SPI interface, backlight using 3 LED lights in parallel, working voltage :3V, working current :60mA, module brightness 400cd/㎡, products in line with Rohs standards, FPC and your motherboard through welding connection, You can change to other connection methods, such as ZIF or BTB, according to your needs.
The outline drawing is as follows:
Interfaces are defined as follows：
| Pin | Symbol | Detail |
| 1 | GND | |
| 2 | LEDK | backlight unit power supply |
| 3 | LEDA | SPI interface input/output pin.the data is latched on the rising edge of the SCL signal. |
| 4 | VDD | This is a voltage supply pin. It must be connected to external source |
| 5 | GND | |
| 6 | GND | |
| 7 | DC | Display data/command selection pin in 4-line serial interface. |
| 8 | CS | Chip selection pin;Low enable,high disable. |
| 9 | SCL | This pin is used to be serial interface clock |
| 10 | SDA | This pin is used to be serial interface clock |
| 11 | RES | This signal will reset the device and it must be applied to properly initialize the chip.Signal is active low. |
| 12 | GND |
1.54 -inch 240x240 tft display application cases
The 1.54 “240×240 resolution tft display is designed to make smartwatches. It’s almost square shape fits the impression of a watch, and it is now widely used in the field of children’s watches.
The 1.54-inch tft display, which is also used in dash-recorders and radar detectors, has a dimension of 31.52(W)*33.72(L)*1.9(H), allowing enough room to fit on a small device. It also has a color screen, showing more content than OLED screens.
