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Backlight unit and liquid crystal display using the same

A technology of backlight unit and light source unit, which is applied in the direction of instruments, optics, electric light sources, etc., and can solve problems such as hindering the installation of the optical sheet 50, reducing the display quality, and shaking the optical sheet 50

Active Publication Date: 2011-08-17
LG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The cracks produced at the elongated holes 52a and 54a of the optical sheet 50 will prevent the optical sheet 50 from being properly installed on the upper surface 20c of the bottom case 20 and the upper surface 32 of the supporting edge 30, so that the optical sheet 50 shakes, so that when the crack occurs The resulting debris (particles) enters the LCD panel, reducing display quality

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach

[0031] Figure 4 is an exploded perspective view of a liquid crystal display (LCD) according to an exemplary embodiment of the present invention, Figure 5 is assembled Figure 4 A partial cross-sectional view of the LCD shown, Figure 6 A state in which the optical sheet is fixed on the bottom case and the upper surface of the supporting side according to the exemplary embodiment of the present invention is shown.

[0032] refer to Figure 4 and Figure 5 , a liquid crystal display (LCD) according to an exemplary embodiment of the present invention includes a supporting body 100, a backlight unit 200 and a liquid crystal panel 170 laminated in the supporting body 100, and a top covering the edge of the liquid crystal panel 170 and the slope of the supporting body 100. Shell 180.

[0033] The top case 180 is manufactured in the shape of a rectangular strip having a sloped portion and a flat portion bent at a right angle. The top case 180 is configured to cover edges of t...

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PUM

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Abstract

A backlight unit that minimizes damage to an optical sheet due to external impacts, and a liquid crystal display employing the backlight unit are disclosed. The backlight unit comprises a light source unit comprising a plurality of light sources; a bottom cover that receives the light source unit and comprises a first protrusion; support sides fastened to both opened shorter sides of the bottom cover to support the light source unit and comprising a second protrusion; and an optical sheet unit disposed on the light source unit and comprising a first long hole in which the first protrusion is inserted and a second long hole in which the second protrusion is inserted, wherein the first and second long holes have a dumbbell shape in which the diameter of a curved portion is larger than the width of a linear portion through which the first and second protrusions pass.

Description

technical field [0001] The present invention relates to a backlight unit, and more particularly to a backlight unit that minimizes damage to an optical sheet due to external impact, and a liquid crystal display employing the backlight unit. Background technique [0002] This application claims priority from Patent Application No. 10-2008-0014196 filed in Korea on February 15, 2008, the entire contents of which are hereby incorporated by reference. [0003] Overall, liquid crystal displays (LCDs) are currently being used in an expanded range because they are lighter, thinner, and driven with lower power consumption. Thus, LCDs are being widely used in office automation equipment, audio / video equipment, and the like. The LCD controls the amount of transmission of light beams according to video signals applied to a plurality of control switches arranged in a matrix, thereby displaying desired images on its screen. [0004] Since the LCD is not a self-luminous display device, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357F21V21/108G02F1/13F21S8/00F21V5/00F21V15/02
CPCG02F1/133606G02F2201/503G02F2201/46G02F1/133604G02F2001/133322G02F1/133608G02F1/133322G02F1/1333G02F1/1335
Inventor 金旼燮朴珍绪
Owner LG DISPLAY CO LTD
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