Method and array substrate for compensating parasitic capacitance of panel switching element

Abstract

The invention provides a method for compensating a stray capacitance of a panel switch element, which comprises the steps that a capacitance value to be compensated for the stray capacitance of the switch element in a pixel unit along different positions of a gate line on a panel is calculated according to the formula C(x)=A(1-e<yx>), wherein C refers to the capacitance value to be compensated, A refers to a differential value between a compensation value of the stray capacitance of the switch element in the pixel unit at a signal input end of the corresponding gate line and a compensation value of the stray capacitance of the switch element in the pixel unit at the tail end of the corresponding gate line, x refers to the position of the pixel unit, and y refers to a constant less than zero; and according to the compensated capacitance, a relative area between two polar plates of the stray capacitances of the switch elements in the pixel units at the different positions along the gate line on the panel is calculated. The invention also provides an array baseplate. The method for compensating the stray capacitance of the panel switch element and the array baseplate provided by the invention realize a steady voltage of a public electrode, require small wiring workloads and realize a good picture display effect.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a method for compensating parasitic capacitance of panel switching elements and an array substrate. Background technique [0002] Liquid Crystal Display (LCD) has many advantages such as lightness, lightness, energy saving, and no radiation, so it has gradually replaced the traditional cathode ray tube (CRT) display. Currently, liquid crystal display devices are widely used in electronic equipment such as high-definition digital televisions, desktop computers, personal digital assistants (PDAs), notebook computers, mobile phones, and digital cameras. [0003] The liquid crystal display device includes an array substrate, a color filter substrate, and a liquid crystal layer arranged between the array substrate and the color filter substrate. A plurality of insulated and crossed data lines and scan lines are arranged on the array substrate, and each two insulated and cros...

AI Technical Summary

Problems solved by technology

However, in the actual Cgs compensation process, since the feed-through voltage Vp(x) on the pixel electrode decreases sequentially from the signal input end to the end of the scan line, the Cgs corresponding to the signal input end of the scan line is the smallest, and the end corresponds to The Cgs is the largest, and the increasing degree from the signal input end to the end is not a linear increase

Therefore, if the difference in Cgs of transistor elements in adjacent regions is too large, it will cause uneven gray scales in adjacent regions of the panel (such as Figure 5 As shown), regional spots (mura) are formed on the display screen; if the Cgs difference of transistor elements in adjacent regions is too small, then the panel needs to be divided into dozens or even hundreds of parts, so for the actual wiring It is very difficult, increases the workload of wiring, and is not easy to check

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