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Backlight unit and liquid crystal display having the same

A backlight unit, white light technology, applied to static indicators, instruments, light sources, etc., can solve the problems of reducing the brightness uniformity of the LCD panel, and the brightness is not the same high

Active Publication Date: 2006-11-01
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] However, in the LCD using the above arrangement, the luminance above the LED boards is high, but not as high as in the area between adjacent LED boards.
Therefore, the brightness uniformity of the LCD panel may be reduced

Method used

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  • Backlight unit and liquid crystal display having the same
  • Backlight unit and liquid crystal display having the same
  • Backlight unit and liquid crystal display having the same

Examples

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Embodiment Construction

[0062] Now, exemplary embodiments of the present invention will be described in detail, examples of which are illustrated in the accompanying drawings, and like reference numerals refer to like elements throughout the specification. The embodiments are described below in order to explain the present invention by referring to the figures.

[0063] Exemplary embodiments will be described using LEDs as point light sources. However, the invention can also be applied to other types of point light sources.

[0064] refer to Figures 1 to 3 A first embodiment of the present invention is described.

[0065] The LCD 1 includes an LCD panel 20 , a light adjustment part 30 , a reflection plate 40 , and an LED circuit board 51 sequentially provided behind the LCD panel 20 . The LCD 1 further includes one or more LED devices 60 mounted on the LED circuit board 51 and disposed corresponding to the LED holes 41 of the reflective plate 40 .

[0066] The LCD panel 20 , the light adjustment...

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Abstract

A backlight unit comprises an arrangement surface and a plurality of point light sources arranged on the arrangement surface, wherein the arrangement surface is divided into an array of hexagonal cells, a plurality of the cells comprising a white light providing unit. An LCD comprising a backlight unit on which a point light source is efficiently disposed and an efficient arrangement method of a point light source are provided.

Description

[0001] This application claims priority from Korean Patent Application No. 2005-0036094 filed in the Korean Intellectual Property Office on Apr. 29, 2005, the entire contents of which are hereby incorporated by reference. technical field [0002] The present invention relates to a backlight unit and a liquid crystal display having the same, and more particularly, to a backlight unit on which point light sources are efficiently disposed and a liquid crystal display having the same. Background technique [0003] Recently, flat panel display devices such as LCD (Liquid Crystal Display), PDP (Plasma Display Panel), and OLED (Organic Light Emitting Diode) type displays have been developed instead of CRT (Cathode Ray Tube) type displays. [0004] A typical liquid crystal display (hereinafter referred to as 'LCD') includes an LCD panel having a TFT (Thin Film Transistor) substrate, a color filter substrate, and a liquid crystal layer disposed between the two substrates. Since the l...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/1335F21S2/00F21Y101/02G02F1/133G02F1/13357
CPCG02F1/133603G02F1/133613F16H57/029F16H57/0472F16H2057/02047
Inventor 尹胄永金基哲金炫缜李相裕
Owner SAMSUNG DISPLAY CO LTD
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