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Backlight unit and display apparatus using the same

A technology for a backlight unit and a light guide plate, which is applied to optical elements, lighting devices, fixed lighting devices, etc., can solve the problems of high power consumption, low color reproduction efficiency of cathode ray tubes, and environmental pollution.

Inactive Publication Date: 2013-01-23
LG INNOTEK CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] However, the backlight unit using the CCFL has several disadvantages such as consuming a large amount of power because power must always be applied to the CCFL; a low color reproduction efficiency of 70% of a cathode ray tube (CRT); and environmental pollution due to the use of mercury.

Method used

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  • Backlight unit and display apparatus using the same
  • Backlight unit and display apparatus using the same
  • Backlight unit and display apparatus using the same

Examples

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Embodiment Construction

[0044] Hereinafter, embodiments will be described with reference to the accompanying drawings.

[0045] It will be understood that when an element is referred to as being "on" or "under" another element, it can be directly on / under the element, and one or more intervening elements may also be present.

[0046] When an element is referred to as "on" or "under", "under the element" and "on the element" may be included based on the element.

[0047] figure 1 is a sectional view showing a backlight unit according to an embodiment.

[0048] Such as figure 1 As shown, the backlight unit may include a light guide plate 20 having a first hollow portion 24 , a reflector 30 , an optical member 40 and a light source module 50 .

[0049] The backlight unit may further include a top frame 60 , a bottom frame 10 having a second hollow 72 , and a panel guide module 80 .

[0050] The panel guide module 80 may support a display panel 90 . The top frame 60 may be connected with the panel g...

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PUM

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Abstract

A backlight unit and a display apparatus using the same are disclosed. The backlight unit includes a light guide plate having a first hollowness, a light source module disposed at the first hollowness, a bottom chassis having a second hollowness corresponding to the first hollowness, and an elastic member disposed at the second hollowness of the bottom chassis between the light source module and the bottom chassis.

Description

technical field [0001] Embodiments relate to a backlight unit and a display device using the same. Background technique [0002] In general, representative large-sized display devices include liquid crystal displays (LCDs), plasma display panels (PDPs), and the like. [0003] Unlike a self-luminous PDP, an LCD necessarily requires a separate backlight unit since there is no self-luminous device. [0004] Backlight units used in LCDs are classified into edge type backlight units and direct type backlight units according to positions of light sources. In the edge type backlight unit, light sources are provided on the left and right edges or the upper and lower edges of the LCD panel, and a light guide plate is provided to be uniformly distributed over the entire surface of the LCD panel, which ensures uniform brightness and enables preparation of an extremely thin display panel. [0005] Direct type backlight units are usually applied to monitors of 20 inches or larger. Sin...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V29/00G02F1/13357F21Y101/02
CPCG02B6/0068G02B6/0085G02B6/0073G02B6/0088G02B6/0021G02F1/1335G02F1/1333
Inventor 郑相赫
Owner LG INNOTEK CO LTD