tear down 1.44 inch tft lcd for sale

This is a 1.44 inch display with a 128(RGB)x128 resolution. It"s an IPS full viewing angle LCD display panel, so colors look great in any direction. The driver IC is ST7735S, which adopts a general 8-pin SPI interface.

TFT-LCD liquid crystal display is a thin film transistor liquid crystal display, and it is also true color. TFT liquid crystal provides a semiconductor switch for each pixel, and a point pulse can directly control each pixel, so each node is relatively independent and can be controlled continuously, which not only improves the response speed of the display screen but also can be accurately controlled. Display color level, make TFT LCD color more real, good brightness, high contrast, a strong sense of layering, and bright colors.

With the grand plan of putting one of these straight onto a new PCB design, I got a couple LCD breakout boards off ebay, this one to be precise: https://www.ebay.com/itm/LCD-Display-module-1-8-inch-1-8-TFT-ST7735S-128x160-51-AVR-STM32-ARM-8-16-bit/112016021626 and tore down one that arrived broken (see attached).

1.44 inch TFT LCD module uses; ST7735; drive chip to drive 128×128 dot, with 128 x 128; resolution; 1.44-inch screen with SPI serial module, a minimum of only four IO-driven resolution 128 * 128 Perfect upgrade actual colour, replace the black and white LCD screen for; Nokia 5110/3310 This TFT LCD Display Module; comes With PCB plate

Docked a star because mine was extremely delicate. The white bezel/holder if touched with the slightest of force, separates the screen layers. If turned upside down the entire thing can fall apart requiring reassembly of the screen. Very tedious to reassembly it cleanly without dust. I think the issue is that the double sided adhesive used is of subpar quality and is not very sticky. A very slight pressure on the white holder edges can remedy the issue, though be very careful not to press on the display itself or you might damage the screen.

If you"re having trouble getting this display to work, here are the useful details. If you"re running it off an Arduino UNO or equivalent 3.3v or 5v microcontroller use the Adafruit ST7735 and ST7789 Library. I would not use the TFT_ILI9163C library, as when I tried it, it caused the screen to have corrupt 2-5 pixel band on one edge of the screen. Even though many places online will tell you to use that library, which is odd since this is a ST7735 screen and not a ILI9163C screen. Wiring is easy for an UNO, LED->3.3v, SCK->13, SDA->11, AO->8, Reset->Reset, CS->10, Ground->GND, VCC->3.3v. There is a voltage regulator on the back of the screen for the use of 5v power which is accompanied by a jumper pad. You can close the jumper pad to bypass the voltage regulator with a tiny blob of solder if you only have 3.3v microcontrollers. However if you supply 5v for VCC with the jumper closed you"ll probably destroy it. Since this is actually a 3.3 volt screen, it will not work without resistors on a 5v device like an UNO. If you use a 3.3 volt microcontroller you don"t need the resistors. If you"re using a 5v microcontroller then four 560 Ohm, 680 Ohm or 1k Ohm resistors are needed for the data lines SCK, SDA, AO, and CS, to pull the voltage down from the Arduino pins. I used four 680 Ohm resistors. The reset line must be connected to the reset pin on an Arduino, not pin 9. If you try to use pin 9 on the UNO you will cause the screen contrast to overwhelm the display causing weird ghosting. This is because the Arduino is 5v not 3.3v The reset pin can be used on pin 9 if another resistor is supplied, however I don"t see the point in adding another resistor when you can just use the reset pin. You can leave the resistors off if you use a multi channel 3v to 5v bidirectional level shifter or say a TXS0108E chip.

Also if you"re using the Adafruit ST7735 and ST7789 library, you"ll want to use the initR function with INITR_144GREENTAB as the argument. That"s because the ST77XX chip that"s used on this board is a Sitronix ST7735R. Which is what the line tft.initR(INITR_144GREENTAB); tells the library to setup for.