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Reflector and liquid crystal display module with the reflector

A reflector and pattern technology, applied in the field of reflectors, can solve the problems of inability to prevent color spots, unsatisfactory interference prevention, etc., and achieve satisfactory display quality, interference prevention, and no color spots.

Inactive Publication Date: 2006-07-05
NEC LCD TECH CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, interference between beams cannot be satisfactorily prevented
therefore does not prevent stains

Method used

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  • Reflector and liquid crystal display module with the reflector
  • Reflector and liquid crystal display module with the reflector
  • Reflector and liquid crystal display module with the reflector

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Experimental program
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Embodiment Construction

[0035] The best mode for carrying out the invention will be described below with reference to the accompanying drawings.

[0036] As described in the related art, in a reflective type LCD module or a transflective type LCD module, a reflector is formed on one substrate, and in the reflector, protrusions and depressions are formed. The ambient light used for the display as light source is thus diffusely reflected. In the case where protrusions and depressions are regularly arranged, when a light beam having directionality such as direct sunlight is incident, interference occurs between reflected light beams. As a result, there arises such a disadvantage that stains are generated. In order to reduce color mottle, it is important to increase the irregularity of the convex and concave patterns of the reflector within a unit area. Furthermore, in order to remove regularity between unit areas, it is important to increase the size of the unit area. In order to specify the irregula...

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PUM

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Abstract

A reflector capable of preventing stain caused from the interference among the beams of light, for reflecting light incident on an LCD module to utilize the light as a light source for display. The reflector includes a plurality of projecting and recessing patterns which are irregularly disposed on the reflector, and each projecting and recessing pattern is disposed corresponding to prescribed polygon shape as a grid, and is repeated in the plane direction of the reflector so that the length of the edge or the distribution of distance between the centers of each projecting and recessing pattern conforms to the Gaussian distribution. The reflector also includes a unit area constituted of the plurality of polygon shapes, so that one edge of the unit area is integral multiple of a unit pixel and substantially 1900 mum or more, and smaller than or equal to the entire screen of the LCD module.

Description

technical field [0001] The invention relates to a liquid crystal display (LCD) module, in particular to a reflector formed on a reflective or semi-transmissive LCD module. Background technique [0002] Since a liquid crystal display (LCD) module has features such as small size, small thickness, and low power consumption, it has been practically used in various fields such as office automation equipment, portable equipment. Unlike CRT or EL displays, LCD does not have the function of emitting light by itself. Therefore, an LCD called a transmissive type is provided with a backlight, and displays are controlled by switching transmission / off of the backlight using a liquid crystal panel. A transmissive LCD module can provide a bright screen with a backlight independent of environmental conditions. However, the transmissive LCD module has the following disadvantages. That is, since the backlight consumes a lot of power, especially when the transmissive LCD module is driven by...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335
CPCG02B5/08G02F2203/03G02F1/133553
Inventor 中谦一郎坂本道昭
Owner NEC LCD TECH CORP