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Bodmer / TFT_eSPI

Arduino and PlatformIO IDE compatible TFT library optimised for the Raspberry Pi Pico (RP2040), STM32, ESP8266 and ESP32 that supports different driver chips
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ST7789V - colors washed (like light colors) #1231

Closed slavendam closed 2 years ago

slavendam commented 3 years ago

I have 2 screen. One is ST7789 and other is ST7789V. On ST7789 everything works great, colors look as they should be. On ST7789V colors looks like they are washed. If I set BLACK screen, it looks like light black or grey. If I set BLUE, it looks like light blue. All screens are same so it is not hardware problem.

Is there something in library that I can change to get more contrast?

Thanks!

Bodmer commented 3 years ago

If you can get the init sequence from the supplier of your V type TFT then I can add it.

You could also try the alternative #define ST7789_2_DRIVER driver, see here:

//#define ST7789_DRIVER      // Full configuration option, define additional parameters below for this display
//#define ST7789_2_DRIVER    // Minimal configuration option, define additional parameters below for this display
slavendam commented 3 years ago

Here are documents they sent to me: https://www.scribd.com/document/512133947/ST013-01 https://www.scribd.com/document/512133966/ST7789V

I tried setting ST7789_2 but without success.

Thank you for your help!

Bodmer commented 2 years ago

Unfortunately I do not have that particular display to test but I suspect it needs different bias voltage settings in the init sequence.