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Back light component used for liquid crystal display device

A technology for liquid crystal display devices and backlight components, which is applied to optical elements, identification devices, lighting devices, etc., and can solve problems such as poor quality, light guide plate sliding to lamps, poor presentation of light guide plates and display panels, etc.

Inactive Publication Date: 2002-05-15
SAMSUNG DISPLAY CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Cracks 14 may render the light guide plate and display panel poorly imaged, resulting in a poor quality LCD
Also, if the light guide is badly cracked, the light guide can come out of the groove so that the light guide slides over the lamp and damages it

Method used

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  • Back light component used for liquid crystal display device
  • Back light component used for liquid crystal display device
  • Back light component used for liquid crystal display device

Examples

Experimental program
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Effect test

Embodiment Construction

[0019] The present invention will now be described more fully with reference to the accompanying drawings, in which preferred embodiments of the invention are shown. However, the present invention can be implemented in many different forms and should not be limited to the embodiments set forth herein. Like reference numerals identify like elements throughout.

[0020] see Figure 5 , which shows a portable computer in which a backlight assembly according to the present invention is installed.

[0021] The liquid crystal display device comprises a casing with a window-shaped upper cover 3 and an open box-shaped lower cover 3', a display panel 4 for displaying various information, and a backlight assembly of the present invention for guiding light to the display panel 4 5, and a top frame (not shown) for fixing and protecting the components of the display panel 4 and the backlight assembly 5.

[0022] The backlight assembly 5 of the present invention includes a plurality of s...

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PUM

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Abstract

A backlight unit for a display device includes a light guide panel comprising a plate-shaped body, at least one light guide projection for fitting the light guide panel disposed on left side or right side of the plate-shaped body, and a plurality of patterns formed on a lower surface of the plate-shaped body to uniformly project light. Upper and lower surfaces of the light guide projection are disposed remote as much as predetermined intervals, respectively from planes extended from upper and lower surfaces of the plate-shaped body. The light guide projection further includes an inclined surface on a side adjacent to a light source to prevent the light guide projections from cracking. Also, the light guide projection has at least one rounded or chamfered corner in order to efficiently prevent light concentration.

Description

technical field [0001] The present invention relates to a liquid crystal display device, and more particularly to a backlight assembly for guiding light to a display panel. Background technique [0002] A liquid crystal display (LCD) is a passive display that does not emit light by itself. Therefore, it needs to use a light source to project light to the display panel to display various types of information. [0003] The light source can be provided by a backlight assembly. Backlight assemblies are used as a component of liquid crystal display devices to direct light to display panels in equipment such as liquid crystal display monitors, portable computers, and cruise systems for vehicles. [0004] With the demand for a large-sized display area and a small-sized system, the backlight assembly has changed from a rear-mounted type in which the lamp is arranged at the rear to a side-mounted type in which the lamp is arranged at the side. The backlight assembly of the side li...

Claims

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Application Information

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IPC IPC(8): G02B6/00F21V8/00F21Y103/00G02F1/13G02F1/1333G02F1/1335G02F1/13357G09F9/00
CPCG02F1/133615G02B6/0088G02F1/1335
Inventor 崔盛植
Owner SAMSUNG DISPLAY CO LTD