Voltage adjusting method of display panel and storage medium

Abstract

The invention provides a voltage regulation method of a display panel and a storage medium. The voltage value of each display area is compensated, the ratio of different Vgs obtained through two timesof testing in the testing step serves as an adjustment factor of the method, then the same compensation voltage of the different display areas can be obtained, the voltage difference between the G point and the S point can be compensated for, and the influence on the output step is reduced. And according to the second adjustment step, current is obtained through the detection by the input compensation voltage, the ratio of each display area k is calculated through a current formula, and the TFT threshold value is adjusted through the current formula again, so that the currents of all the display areas are the same.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a method for regulating voltage of a display panel and a storage medium. Background technique [0002] like figure 1 As shown, the common organic light-emitting semiconductor (Organic Light-Emitting Diode, OLED) driving pixel circuit is 3T1C, which can not only drive OLED to emit light, but also detect device electrical properties through sensing thin film transistors. [0003] OLED is a current-driven device, and its luminous brightness depends on the current flowing through the driving thin film transistor. The driving thin film transistor works in the saturation region during the OLED light-emitting stage, and its current formula is: [0004] [0005] where C i is the capacitance of the insulating layer per unit area; μ is the mobility; W is the channel width of the thin film transistor; L is the channel length of the thin film transistor; gs is the potential differenc...

AI Technical Summary

Problems solved by technology

[0007] Because each subpixel's V th There is a certain difference with the constant k, so the input of the same V data Voltage signal, which will cause different brightness in different areas of OLED

[0008] Therefore, there is an urgent need to provide a new voltage regulation method for display panels and a computer-readable storage medium, which can solve the problem of different brightness in different regions of OLEDs in the prior art.

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