Need Help! display has a streak of grey where the text is supposed to be

Other Hardware Displays
1

I have a 1.9" tft display that has a streak of gray where the text is supposed to be, I don't know why or how to fix it. I would appreciate any help. I am using the Adafruit GFX and ST7789 Libraries.

image
image1920×3412 1.02 MB

2

And your code?
If we can't see the code, we'll play a guessing game.

3

I apologise, this is the code:

#include <Adafruit_GFX.h>
#include <Adafruit_ST7789.h>
#include <SPI.h>

#define TFT_CS   10
#define TFT_DC   9
#define TFT_RST  8

Adafruit_ST7789 tft = Adafruit_ST7789(TFT_CS, TFT_DC, TFT_RST);

void setup() {
  analogWrite(6, 64);
  tft.init(170, 320);
  tft.setRotation(1);
  tft.fillScreen(ST77XX_BLACK);
  tft.setTextColor(ST77XX_WHITE);
  tft.setTextSize(2);
  tft.setCursor(20, 20);
  tft.print("ST7789");
}

void loop() {}
4

First remove the plastic from the screen. Second adjust the backlight and see if that makes a difference.

5

I have removed the plastic film and changed the brightness to 256 and it worked. Thank you.

6

That may only be temporary, some of your solder joints look very questionable, particularly the GND and RES pins.

7

it did start to flicker but I just changed it from 3.3v to 5v and it stopped