Pixel structure having multiple memory capacitors and display panel

Abstract

The present invention provides a pixel structure with multiple storage capacitors and a display panel. The pixel structure with multiple storage capacitors includes: a display unit with a transistor, a main storage capacitor coupled to the transistor; and a capacitor supply device , having one or more secondary storage capacitors, and selectively connecting the secondary storage capacitors to the main storage capacitors in parallel according to a corresponding driving frequency of the display unit.

Description

technical field [0001] The present invention relates to a pixel structure, in particular to a pixel structure and a display panel capable of reducing flicker in a low frequency state. Background technique [0002] Liquid crystal display (LCD) is the most widely used flat-panel display at present. It has the characteristics of low power consumption, thin and light weight, and low voltage drive. Its display principle is to use the material properties of liquid crystal molecules to Finally, the alignment state of the liquid crystal molecules is changed, causing various photoelectric effects in the liquid crystal material. [0003] Generally speaking, the display area of ​​an LCD includes a plurality of pixel areas, and a pixel area refers to a rectangular area defined by a scan line and a data line, in which a thin film transistor (thin film transistor) is arranged. Transistor, hereinafter referred to as TFT) and a pixel electrode, and the LCD with TFT as a switching device is...

AI Technical Summary

Problems solved by technology

[0007] When the pixel 101a is in the non-selected state, although the liquid crystal display voltage V LC1 will be stored by the storage capacitor C ST-11 To maintain stably, but there will still be a little power loss due to the consumption or leakage of the pixel itself or peripheral components, so before the next charge, the liquid crystal display voltage V LC1 It will drop from a high potential to a drop potential ΔV 1

[0008] Under the general driving frequency, such as about 60Hz, because the charging frequency is faster, the liquid crystal display voltage V LC1 Subtract the falling potential ΔV from the high potential 1 Back to V LC1 The process of the electric potential is not easy to be detected by the user; however, in the power-saving mode such as the standby state, the driving frequency is a lower driving frequency below 40Hz, and the time between each charging will be prolonged, so that the power will continue to be lost. leads to the LCD display voltage V LC1 Before the next charge, it will drop more than the drop potential ΔV 1 More potential ΔV 1 ',like Figure 3b shown

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