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Brightness-raising optical panel and liquid crystal display device therewith

A technology of improving brightness and light guide plate, which is applied in light guides, identification devices, lighting devices, etc., can solve the problems of reduced light reflection efficiency and formation of hard-to-reflect points into critical dimensions, etc.

Inactive Publication Date: 2006-12-06
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0011] Then, since the reflective dots are formed by a screen method, etc., a decrease in light reflection efficiency occurs due to the destruction of the shape of the reflective dots
In addition, the screen method has a problem in that it is difficult to form reflective dots to a critical size or smaller

Method used

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  • Brightness-raising optical panel and liquid crystal display device therewith
  • Brightness-raising optical panel and liquid crystal display device therewith
  • Brightness-raising optical panel and liquid crystal display device therewith

Examples

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Embodiment Construction

[0028] Now, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings.

[0029] refer to figure 1 , the term "light guide plate 110" frequently used in the present invention is defined as a light distribution changing unit by which light distribution concentrated on a small surface area is changed into a uniform light distribution over a large surface area.

[0030] Such as figure 2 As shown, as an example, the light guide plate 110 has an orthoparallelepiped shape. More specifically, the light guide plate 110 has an orthoparallelepiped shape composed of four side surfaces, an upper surface, and a lower surface.

[0031] In the light guide plate 110 as described above, light is provided through one of the four side surfaces. The light distribution and light path of the provided light is changed on one of the upper surface and the lower surface. The light whose light distribution and path are changed is output vi...

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PUM

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Abstract

Disclosed are a brightness-enhancing light guiding plate and an LCD using the same, in which a brightness enhancing recess portion for improving an optical distribution, changing a light path and enhancing brightness is formed at a surface by which light is reflected. The brightness enhancing recess portion has a reflection recess surface having a maximum surface area and a non-reflection recess surface having a minimum surface area, thereby improving the brightness, changing the light path and improving the optical distribution and thus improving a displaying performance.

Description

technical field [0001] The present invention relates to a brightness-improving light guide plate and a liquid crystal display device (LCD) using the light guide plate, and more particularly, to a brightness-improving light guide plate and an LCD device using the light guide plate, which will be concentrated in a small The light distribution over the surface area is changed to a uniform light distribution over a large surface area, thereby increasing the brightness required to display images, thereby improving display performance. Background technique [0002] In general, an LCD can be defined as a display device that displays images using electro-optical properties of liquid crystals having physical properties intermediate between crystals and liquids. [0003] Here, the electro-optic characteristic of liquid crystal is that when an electric field is applied to the liquid crystal, the alignment of liquid crystal molecules is changed, thereby changing the ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335G02B6/00F21V8/00F21Y103/00G02F1/13357G09F9/00G09F9/35
CPCG02B6/0036G02B6/0071G02B6/0086G02F1/1335
Inventor 金僖善金东先金荣德
Owner SAMSUNG DISPLAY CO LTD