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Illumination system and display device

A lighting system and transparent technology, applied in the field of lighting systems, can solve the problems of large, heavy and inconvenient lighting components

Active Publication Date: 2009-02-11
HONG KONG APPLIED SCI & TECH RES INST
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, these lighting components can often be relatively large, making them inconvenient or bulky in some applications

Method used

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  • Illumination system and display device
  • Illumination system and display device
  • Illumination system and display device

Examples

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Embodiment Construction

[0016] figure 1 A typical lighting system embodiment 100 of the present invention is shown. The system 100 first has an elongated substrate 101 with an elongated recess 103 therein. Along the length of the substrate, i.e. the linear direction, in figure 1 shown here as the Z axis.

[0017] The groove 103 extends along the substantial length of the base plate 101 and has a pair of inclined bevels 105a, 105b extending outwardly from a nearly flat bottom plane 107 and terminating in a pair of edges 109a, 109b parallel to the bottom plane 107 .

[0018] The system 100 also includes unpackaged or unlensed semiconductor LED chips 111 mounted almost linearly along the z-axis on the bottom plane 109 and dispersing light emission substantially uniformly in all directions around the centerline of propagation (y). Because the LED chip 111 is not equipped with a lens, the viewing angle is about 120 degrees. However, a lensed L with a viewing angle of approximately 60 degrees can also...

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Abstract

An illumination system (100) includes an elongate substrate (101), a plurality of unlensed light emitting diode (LED) chips (111) mounted on the substrate (101) along the length of the substrate (101), and a substantially transparent outer packaging for encapsulating the plurality of LED chips (111).

Description

technical field [0001] The present invention relates to a lighting system used in a display device and a display device using the lighting system. Background of the invention [0002] Linear lighting systems are ideal, especially in image display devices such as monitor backlight systems. Various existing devices and methods include, for example, U.S. Patent No. 6,450,664, entitled "Linear illumination unit having plurality of LEDs," issued September 17, 2002 to William Kelly, USA Patent No. 6,840,646, entitled "Illumination system and display device", granted to Cornelissen et al. on January 11, 2005, and U.S. Patent No. 6,866,398, entitled "Flexible rod light device formed of chip on board basedLED lamps and manufacturing method thereof (LED lamps of flexible rod light equipment made by chip direct mounting and its manufacturing method)", authorized to Yuan Lin on March 15, 2005, all of them use electronic components including LED devices lighting fixtures. However, the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00G02F1/13357G02F1/13F21Y101/02G02F1/1335
CPCG02F1/1336F21K9/00F21Y2103/10F21Y2115/10
Inventor 张亚衔彭华军梁立慧徐文泰
Owner HONG KONG APPLIED SCI & TECH RES INST