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Backlight assembly and liquid crystal display device having the same

A technology of backlight components and light guide plates, which is applied to optical components, light guides, optics, etc., and can solve problems such as reduction of emission angles

Inactive Publication Date: 2010-05-26
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] However, in the related art LCD, the emission angle of the light emitted from the LCD 60 and incident on the incident surface of the light guide plate may be reduced due to medium differences.

Method used

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  • Backlight assembly and liquid crystal display device having the same
  • Backlight assembly and liquid crystal display device having the same
  • Backlight assembly and liquid crystal display device having the same

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Embodiment Construction

[0029] Preferred embodiments of the present invention will be specifically described below with reference to the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0030] image 3 is an exploded perspective view of the edge-lit LCD device according to the first exemplary embodiment of the present invention. Figure 4 yes image 3 A perspective view of part A of FIG. 1 , showing an exemplary light guide plate and LEDs.

[0031] Such as image 3 and 4 As shown, the edge type LCD device according to the first exemplary embodiment includes a liquid crystal panel 100 and a backlight assembly 120 emitting light to the liquid crystal panel 100 . Although not shown, the liquid crystal panel 100 includes a TFT array substrate, a color filter substrate, and a liquid crystal layer sandwiched between the TFT array substrate and the color filter substrate.

[0032] The backlight assembly 120 ...

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PUM

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Abstract

A backlight assembly includes a plurality of light emitting diodes (LEDs), a light guiding plate disposed on the same plane as the LEDs, and a plurality of optical correcting portions formed on a sideof the light guiding plate and spaced apart from each other by a predetermined distance to change an optical path.

Description

[0001] This application claims the benefit of Korean Patent Application No. 2006-60073 filed in Korea on Jun. 30, 2006, the entire contents of which are hereby incorporated by reference. technical field [0002] The invention relates to a backlight assembly for a flat panel display device, in particular to a backlight assembly capable of improving its brightness uniformity and a liquid crystal display device using the backlight assembly. Background technique [0003] A liquid crystal display (LCD) device is a flat panel display device for displaying images, and has been widely used as a monitor for computers, televisions, etc. due to its thin profile, light weight, and low power consumption. An LCD device typically includes a liquid crystal panel for displaying images and a backlight assembly for emitting light to the liquid crystal panel. [0004] Backlight assemblies can be classified into side-light type and direct-light type according to the setting of the light source. ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357G02F1/1333G09F9/35
CPCG02B6/0068G02B6/0016G02B6/0031G02B6/0021G02F1/1335
Inventor 笾宽燮马在乐郑明愚李仙希
Owner LG DISPLAY CO LTD