Transflective liquid crystal display device and driving method thereof

Abstract

The present invention provides a transflective liquid crystal display device and its driving method, wherein the thickness of the liquid crystal layer in the transmissive area and the reflective area of ​​the device is equal; the device also includes: a first surface electrode located in the transmissive area, The first pixel electrode, the second surface electrode and the second pixel electrode, the first surface electrode and the first pixel electrode are located between the first substrate and the liquid crystal layer, and the second surface electrode and the second pixel electrode are located between the second substrate and the liquid crystal layer Between; the third surface electrode, the reflection layer and the third pixel electrode located in the reflection area, the third surface electrode, the reflection layer and the third pixel electrode are located between the first substrate and the liquid crystal layer. The above-mentioned transflective liquid crystal display device can greatly reduce the process difficulty of the device under the premise of ensuring that the phase delay of the transmissive area and the reflective area are the same.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a transflective liquid crystal display device and a driving method thereof. Background technique [0002] In the current field of flat panel display technology, liquid crystal display devices occupy a dominant position due to their advantages of small size, low power consumption, and no radiation. According to different types of light sources (internal light source, external light source) used, liquid crystal display devices can be classified into three types: transmissive type, reflective type and transflective type. [0003] Among them, the transflective liquid crystal display device can use both the internal backlight light and the external ambient light when displaying the picture, and has the advantages of good visibility of the picture of the transmissive display device and low energy consumption of the reflective display device, and can It satisfies the use requirements ...

AI Technical Summary

Problems solved by technology

However, to form a double-cell thick structure, it is necessary to prepare an organic insulating layer in the reflective area to raise the liquid crystal layer in this area, and the subsequent rubbing process for forming the alignment layer will also become very difficult due to the fluctuation of the substrate surface, resulting in a transflective liquid crystal display. The process difficulty of the device is relatively high

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