Unlock instant, AI-driven research and patent intelligence for your innovation.

Backlight unit

A backlight unit and light source technology, applied in optical elements, light guides, optics, etc., can solve problems such as reducing light efficiency

Active Publication Date: 2008-07-16
LG DISPLAY CO LTD
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At the same time, the lampshade 20 covering the lamp 10 also absorbs light, thereby reducing the light efficiency.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Backlight unit
  • Backlight unit
  • Backlight unit

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0032] Reference will now be made in detail to embodiments of the invention, which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

[0033] Hereinafter, a backlight unit according to the present invention will be described in detail with reference to the accompanying drawings.

[0034] figure 2 is a sectional view of the backlight unit according to the first embodiment of the present invention. Such as figure 2 As shown, the backlight unit according to the first embodiment of the present invention includes: a light source 100 , a lampshade 200 , a light guide plate 300 , and a reflection sheet 400 . The light source 100 is disposed at one side of an LCD panel (not shown) for emitting light to the LCD panel. In addition, the lampshade 200 covering the light source 100 protects and supports the light source 100 . The light guide plate 300 is disposed under ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

No PUM Login to View More

Abstract

A backlight unit, in which an incident surface of a light-guiding plate is formed in a shape of a curve, or a curve-shaped structure is formed in a housing to improve the light efficiency. The backlight unit includes a light source emitting light; a housing surrounding the light source; a light-guiding plate guiding the light emitted from the light source to an LCD panel, wherein the light-guiding plate has an incident surface formed in a shape of a curve; and a reflective sheet formed under the light-guiding plate.

Description

[0001] This application claims the benefit of Application No. P2004-50328 filed in Korea on June 30, 2004, the entire contents of which are incorporated herein by reference. technical field [0002] The invention relates to a backlight unit, in particular to a backlight unit capable of improving light efficiency. In the backlight unit, the incident surface of a light guide plate is formed with a curved surface, or a curved surface structure is formed in a lampshade. Background technique [0003] Among various ultra-thin flat panel display devices including display screens with a thickness of several centimeters, liquid crystal displays (LCDs) are widely used in notebook computers, monitors, aircraft, and the like. [0004] LCD devices are different from other flat panel display devices in that they cannot emit light by themselves. Therefore, the LCD device requires a backlight unit serving as a light source for the LCD device to be disposed behind the LCD panel. [0005] Su...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/1335G09F9/35
CPCG02B6/002G02B6/0031G02B6/003G02F1/1335
Inventor 李锡雨金度润
Owner LG DISPLAY CO LTD