Please help me on Drive a sharp LCD by TOSHIBA chip

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wiwiwi

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Help Please,
Now I have a sharp LCD (model: LS055T3SX05) and a THOSHIBA chip (TC358870XBG).
But first of all, I want to light up the LCD. From what I read there are three pins (LED+, LED-, LED_PWM) related to backlight.
I apply 5v to LED+ with 0v to LED-, for LED_PWM I am using the 3.3v blue pill (arduino) to produce pulse. However, Backlight is still not working......
anyone can help? appreciated!!!!!
|O |O
 

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