Liquid crystal display panel and display device

Abstract

The invention provides a liquid crystal display panel and a display device. The liquid crystal display panel comprises an upper substrate, a lower substrate and a liquid crystal layer, wherein the upper substrate is located on one side, which faces to a user, of the lower substrate; the upper substrate comprises pixel electrodes and a first electrode; the pixel electrodes are located on one side, which faces to the lower substrate, of the first electrode; the lower substrate comprises reflection electrodes; the reflection electrodes are used for reflecting external light rays; the liquid crystal display panel further comprises a color filter; the color filter is located on the sides, which faces to the upper substrate, of the reflection electrodes; in a first display state, the pixel electrodes have data voltage, and the reflection electrodes have public voltage; in a second display state, the reflection electrodes have field display voltage, the first electrode has the public voltage, and the pixel electrodes are impending. Free switching between black-white field displaying and color image displaying can be realized in the same liquid crystal display panel, so that the aim of reducing the power consumption during the black-white field displaying can be fulfilled.

Description

technical field [0001] The invention relates to the field of display technology, and in particular to a liquid crystal display panel and a display device thereof. Background technique [0002] As display panels are increasingly used in various electronic devices, for example, display panels have been found in smartphones, tablet PCs, laptop computers, digital cameras, camcorders, personal digital assistants (PDAs) and thin TVs. It has been widely used in devices such as , and the research on display panels has become more and more in-depth. [0003] With the development of display technology, the display has undergone a major change from black and white to color, bringing people a rich sensory experience. At present, the commonly used color display is a liquid crystal display panel. The imaging principle of the traditional liquid crystal display is to place the liquid crystal between the lower substrate and the color filter substrate, and to drive the electric field generat...

AI Technical Summary

Problems solved by technology

Moreover, traditional red (R), green (G), and blue (B) three-color liquid crystal displays set different driving voltages through the driving integrated circuit to drive the liquid crystal display to display different gray scales, and the power consumption is high. If the frequency is reduced If the power consumption is reduced by means of the method, there will be pixel leakage, which will cause abnormal display brightness of the middle gray scale, and then lead to abnormal image color.

[0004] However, in practical applications, it is often necessary to display a black and white screen. For example, when a mobile phone or a wearable device watch is in a standby state, part or all of the display panel is also required to be in a black and white display state for displaying time or incoming call reminders, etc. , but if the above-mentioned conventional color display is used to display a black and white picture, it will consume more energy and cause a waste of electric energy

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