Liquid crystal display

A liquid crystal display, liquid crystal technology, applied in instruments, polarizing elements, optics, etc., can solve problems such as difficulty in improving the brightness of liquid crystal display units

Inactive Publication Date: 2003-02-19
NEC LCD TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In addition, since the reflection on the surface of the light-emitting unit 102 is mainly specular reflection, it is difficult to increase the brightness of the liquid crystal display unit in a direction perpendicular to it.

Method used

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Examples

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Embodiment Construction

[0019] Refer below Figure 2A , 2B and 2C describe a liquid crystal display in one embodiment of the invention.

[0020] Figure 2A It is a sectional view in the case of cutting the liquid crystal display of the present invention on one plane perpendicular to the substrate. Figure 2B Schematic illustration of the relationship between the polarization axes of two polarizers mounted on one side of the substrate and a light-emitting unit on the side of the liquid crystal display. Figure 2C Schematically illustrate the structure of the light emitting unit. This liquid crystal display includes a liquid crystal display unit 1 and a light emitting unit 2, which are structured as follows. Note that hereafter, the side of the liquid crystal display unit 1 on which the light-emitting unit 2 is installed is called the back, and the side of the liquid crystal display unit 1 opposite to the back is called the front.

[0021] First, if Figure 2A As shown, polarizers 4 and 5 are pla...

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Abstract

A liquid crystal display device is constructed such that a polarizer and a reflection polarizer are bonded in the stated order on the back face of a liquid crystal display panel by using a diffusing adhesive material. A light transmitted through the polarizer and from the front face of the liquid crystal display device is diffused by the diffusing adhesive material and is incident on the reflection polarizer. In this case, a geometric angle between the transmission axis of the polarizer and that of the reflection polarizer is made ranging from 0 DEG to 90 DEG excluding 0 DEG.

Description

field of invention [0001] The present invention relates to a liquid crystal display, in particular to a liquid crystal display that can improve the utilization efficiency of external light when the display is used in a bright environment, for example, there is a large amount of reflection and scattering of ambient light under sunlight. Background technique [0002] Figure 1A It is a cross-sectional view of a conventional liquid crystal display. The liquid crystal display unit 101 includes a liquid crystal unit 103 , a polarizer 104 on the front surface of the liquid crystal unit 103 , a polarizer 105 on the back surface of the liquid crystal unit 103 , and a reflective polarizer 107 on the back surface of the polarizer 105 . Such as Figure 1B As shown, reflective polarizer 107 is positioned such that its transmission axis is substantially aligned with the transmission axis of polarizer 105 . [0003] The structure of the liquid crystal cell 103 is such that there is a tr...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02B5/30G02F1/1335
CPCG02F1/133504G02F1/133536G02F1/1335
Inventor 藤井严
Owner NEC LCD TECH CORP
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