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Light emitting device, display device and manufacturing method of the light emitting device

A technology of a light-emitting device and a manufacturing method, which can be applied to the parts of the lighting device, the cooling/heating device of the lighting device, the lighting device, etc., can solve the problem of heating of the light-emitting element, and achieve the effect of suppressing the fluctuation of the light quantity

Inactive Publication Date: 2010-08-11
SHOWA DENKO KK
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] However, light-emitting elements such as LEDs generate heat when they emit light.

Method used

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  • Light emitting device, display device and manufacturing method of the light emitting device
  • Light emitting device, display device and manufacturing method of the light emitting device
  • Light emitting device, display device and manufacturing method of the light emitting device

Examples

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Embodiment Construction

[0030] Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

[0031] figure 1 It is a diagram showing the overall configuration of a liquid crystal display device to which this embodiment is applied. The liquid crystal display device includes a liquid crystal display module 20, and a figure 1 The middle is the backlight device 10 on the lower side). It should be noted that, in this embodiment, a so-called edge-light type backlight unit 10 is employed.

[0032] The backlight unit 10 includes a light source unit 11 , a light guide plate 12 , a reflection sheet 13 , a diffusion sheet 14 , prism sheets 15 and 16 , and a brightness improvement film 17 .

[0033] The light source device 11 is arranged to face the side of one side (long side) of the light guide plate 12 . In the present embodiment, the light source device 11 is configured by arranging a plurality of LEDs that emit light of each color of red (R), green (G), ...

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Abstract

The invention provides a light emitting device, a display device and a manufacturing method of the light emitting device. A light emitting module (40) comprising eight LEDs emitting red, green and blue light; electric conductor parts (60) electrically connected to the respective LEDs and constitute power feeding routes to the respective LEDs; a heat conductor part (50) provided so as to be electrically insulated from the electric conductor parts (60) and constitute heat dissipating routes for heat generated in the respective LEDs; and a lenses (70) which seal the respective LEDs along with portions of the respective electric conductor and heat conductor parts (60, 50). Bending process is applied to each of the electrodes of the electric conductor parts (60) which are exposed from the lens (70) such as a red positive lead electrode portion (61a) and a heat dissipating portion (52) etc. in the heat conductor part (50) which is exposed from the lens (70). Accordingly, temperature change in the light emitting elements and accompanying light intensity change are suppressed, and at the same time, thinning of the light emitting device comprising the light emitting elements is achieved.

Description

technical field [0001] The present invention relates to a light-emitting device using a light-emitting element, a display device, and a method for manufacturing the light-emitting device. Background technique [0002] In recent years, in display devices such as liquid crystal display devices such as liquid crystal televisions and liquid crystal monitors, a backlight device is used as a light source in order to irradiate light from the rear and side surfaces of the display panel. As this backlight device, there is a so-called edge light (side light) type as follows: light sources are provided on both sides or one side of a transparent resin light guide plate, and the light incident on the light guide plate is transmitted by a reflector provided on the back surface of the light guide plate. It reflects and irradiates the liquid crystal panel surface. [0003] As such a backlight device, fluorescent tubes such as hot cathode type and cold cathode type are generally used. On t...

Claims

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Application Information

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IPC IPC(8): H01L33/00F21S8/04F21V8/00F21V19/00F21V29/00G02F1/13357F21Y101/02H01L33/54H01L33/62
CPCH05K3/202G02B6/0085G02F2001/133628G02B6/0083G02B6/0068G02B6/003H01L33/62H01L33/54G02B6/0073H01L2224/48247H01L2924/181G02F1/133628H01L2924/00012
Inventor 内条秀一
Owner SHOWA DENKO KK
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