Single-box thick transflective blue phase liquid crystal display with low operating voltage and high optical efficiency

Abstract

The invention discloses a single-box thick transflective blue phase liquid crystal display with low operating voltage and high optical efficiency. The transflective liquid crystal display is characterized in that a transmissive area and a reflecting area have the same liquid crystal box thickness; an upper substrate comprises an upper substrate glass layer, an upper substrate quarter wave plate, an upper substrate half wave plate and an upper substrate polarizing plate; a lower substrate comprises a lower substrate glass layer, a lower substrate quarter wave plate, a lower substrate half wave plate and a lower substrate polarizing plate; and a reflecting layer of the reflecting area is arranged inside the lower substrate glass substrate. A bottom edge for arranging transparent wedge electrodes is arranged on the upper substrate glass layer and the lower substrate glass layer, and an area opposite to the right angle edge of the transparent wedge electrodes is the transmissive area, and an area opposite to the oblique angle edge of the transparent wedge electrodes is the reflecting area. A gap between adjacent transparent wedge electrodes on the transmissive area is smaller than a gap between adjacent transparent wedge electrodes on the reflecting area, and the transparent wedge electrodes comprise alternately arranged pixel electrodes and common electrode. By adjusting the liquid crystal box thickness, the height and the bottom edge width of the transparent wedge electrodes and the gaps between the adjacent transparent wedge electrodes on the transmissive area and on the reflecting area, the single-box thick blue phase liquid crystal display has the characteristics of low operating voltage, high optical efficiency, wide visual angle and the like.

Description

technical field [0001] The invention relates to the field of liquid crystal display, more specifically, the invention relates to the field of transflective liquid crystal display, especially the transflective liquid crystal display using blue phase liquid crystal. Background technique [0002] The transflective liquid crystal display is widely used in various electronic display devices because of its backlight mode in the transmission area and ambient light in the reflection area, which has good readability and color saturation both indoors and outdoors. Transflective liquid crystal display can be divided into single-cell thick transflective liquid crystal display and double-cell thick transflective liquid crystal display according to its working principle. The single-cell thick transflective liquid crystal display is easy to manufacture, but the phase delay between the transmissive area and the reflective area is not easy to match. It is easy to match the phase retardation ...

AI Technical Summary

Problems solved by technology

However, there are two major obstacles to the popularization of blue-phase liquid crystal displays: (1) the driving voltage of blue-phase liquid crystal displays is too high, which is not conducive to the application in portable electronic display devices; (2) the light efficiency of blue-phase liquid crystal displays is low, and the viewing effect is not good. good

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