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Transmission-reflection blue-phase liquid crystal display with corrugated electrode

A blue-phase liquid crystal and wave-shaped technology, which is applied in instruments, nonlinear optics, optics, etc., can solve the problems of difficult manufacture of protruding electrodes and low light efficiency of transflective blue-phase liquid crystal displays, and achieve good electro-optic characteristic curves and manufacturing The process is simple and the effect of improving light efficiency

Inactive Publication Date: 2011-11-02
SICHUAN UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the light efficiency of these transflective blue-phase liquid crystal displays is relatively low
In addition, it is relatively difficult to manufacture protruding electrodes.

Method used

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  • Transmission-reflection blue-phase liquid crystal display with corrugated electrode
  • Transmission-reflection blue-phase liquid crystal display with corrugated electrode
  • Transmission-reflection blue-phase liquid crystal display with corrugated electrode

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] as attached figure 1 As shown, an embodiment of the present invention, the transflective blue-phase liquid crystal display using corrugated electrodes includes: an upper substrate 10, a transparent corrugated common electrode 15, a liquid crystal layer 30, a transparent corrugated pixel electrode 25, a lower substrate 20 and The reflective layer 26; the upper substrate 10 and the lower substrate 20 are arranged parallel to each other and are divided into a transmissive area and a reflective area; the liquid crystal layer thickness of the transmissive area d T Thickness of liquid crystal layer less than reflective area d R , and the liquid crystal layer 30 in the transmissive area and the reflective area uses the same blue phase liquid crystal material; the upper substrate 10 includes an upper substrate glass layer 11, an upper substrate quarter wave plate 12, an upper substrate half wave plate 13 and Upper substrate polarizer 14; lower substrate 20 comprises lower s...

Embodiment 2

[0034] as attached Figure 4 As shown, an embodiment of the present invention, the transflective blue-phase liquid crystal display using corrugated electrodes includes: an upper substrate 10, a transparent corrugated common electrode 15, a liquid crystal layer 30, a transparent corrugated pixel electrode 25, a lower substrate 20 and The reflection layer 26 in the reflection area; the upper substrate 10 and the lower substrate 20 are arranged parallel to each other and are divided into a transmission area and a reflection area, and the liquid crystal layer 30 in the transmission area and the reflection area all uses the same blue phase liquid crystal material, and the thickness of the liquid crystal layer in the transmission area d T equal to the thickness of the liquid crystal layer in the reflective area d R The upper substrate 10 includes an upper substrate glass layer 11, an upper substrate quarter wave plate 12, an upper substrate half wave plate 13 and an upper substrat...

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Abstract

The invention discloses a transmission-reflection blue-phase liquid crystal display with a corrugated electrode. The liquid crystal display comprises an upper substrate, a transparent corrugated public electrode, a liquid crystal layer, a transparent corrugated pixel electrode, a lower substrate and a reflecting layer, wherein the upper substrate and the lower substrate are arranged in parallel and are partitioned into transmission regions and reflection regions; and the transmission regions and the reflection regions are made of the same blue-phase liquid crystal material. By adopting the following two schemes, the phase delay between the transmission region and the reflection region can be balanced and the transmission-reflection blue-phase liquid crystal display can be realized. In thescheme I: the same corrugated electrode inclination angle, i.e., alpha T=alpha R, is adopted for the transmission regions and the reflection regions, but different liquid crystal layer thicknesses, i.e., dT is less than dR, are adopted. In the scheme II: the same liquid crystal layer thickness, i.e., dT=dR, is adopted for the transmission regions and the reflection regions, but different corrugated electrode inclination angles, i.e., alpha T is more than alpha R, are adopted. Due to the adoption of the corrugated electrode in the transmission-reflection blue-phase liquid crystal display, the working voltage is reduced, the optical efficiency is increased, and the electrooptic property curves of the transmission regions and the reflection regions are well matched. Due to the adoption of the corrugated electrode, the manufacturing process is easier.

Description

technical field [0001] The invention relates to the field of liquid crystal displays, in particular to a transflective blue phase liquid crystal display. Background technique [0002] According to the different types of light sources used, liquid crystal displays can be divided into three types: transmissive, reflective and transflective. The transflective liquid crystal display has the advantages of both the transmissive liquid crystal display and the reflective liquid crystal display, and can be used both indoors and outdoors. Therefore, it is widely used in display devices of portable mobile electronic products. [0003] The emergence of thin-film transistor (TFT) driving technology has greatly improved the brightness, contrast, layering and color display of liquid crystal displays. In order to solve the narrow viewing angle problem of liquid crystal display, in-plane switching (IPS) mode, fringe field switching (FFS) mode, multi-domain vertical alignment (MVA) mode, pa...

Claims

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Application Information

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IPC IPC(8): G02F1/1343
Inventor 王琼华崔建朋周凤吴迪
Owner SICHUAN UNIV
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