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Backlight device, displaying device, and television receiver

A technology for a display device and a backlight source, applied in the fields of backlight source devices, display devices and television receivers, can solve problems such as uneven brightness of display panels, and achieve the effects of suppressing uneven brightness and suppressing the increase in manufacturing processes

Inactive Publication Date: 2012-05-23
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, there is a defect that the luminance of the display panel becomes uneven.

Method used

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  • Backlight device, displaying device, and television receiver
  • Backlight device, displaying device, and television receiver
  • Backlight device, displaying device, and television receiver

Examples

Experimental program
Comparison scheme
Effect test

no. 1 Embodiment approach

[0052] First, refer to Figure 1 ~ Figure 3 Next, the configuration of the liquid crystal television receiver 1 including the backlight unit 20 according to the first embodiment of the present invention will be described. In addition, the liquid crystal television receiver 1 is an example of the "television receiver" of the present invention.

[0053] Such as figure 1 As shown, the liquid crystal television receiver 1 provided with the backlight device 20 according to the first embodiment of the present invention includes: a liquid crystal display device 10 including a backlight device 20; a front cabinet 2 and a rear cabinet 3 for accommodating the liquid crystal display device 10 ; speaker 4 , which is mounted on front case 2 ; tuner 5 ; power supply 6 ; and support member 7 . The front cabinet 2, the rear cabinet 3, the speaker 4, the tuner 5, the power supply 6, and the supporting member 7 can use conventionally used devices, and therefore, each will be briefly describe...

no. 2 Embodiment approach

[0099] In this second embodiment, refer to Figure 9 Next, a case where the arrangement density of the LEDs 121 around the connector 23 is increased, which is different from the first embodiment described above, will be described.

[0100] In the backlight unit according to the second embodiment of the present invention, if Figure 9 As shown, on the front surface 122a of the board|substrate 122, several LED121 and the connector 23 are mounted. In addition, the front surface 122a is an example of "one surface" of this invention, and LED121 is an example of a "point light source" and a "light emitting diode" of this invention.

[0101] Here, in the second embodiment, for example, three LEDs 121 mounted on one substrate 122 are arranged at a constant pitch ( P11 ). That is, three LED121 are arrange|positioned at equal pitches in A direction on one board|substrate 122.

[0102] Moreover, in 2nd Embodiment, the distance between LED121a arrange|positioned adjacent to the connect...

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PUM

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Abstract

Provided is a backlight device, wherein an increase in the number of manufacturing processes can be limited, and the phenomenon of the brightness of the display panel becoming uneven can also be limited. This backlight device (20) is provided with a substrate (22) upon which multiple LEDs (21) are to be installed, and connectors (23) to be arranged upon the substrate. Luminous flux at the periphery of the connectors is greater compared to luminous flux at places other than the periphery of the connectors.

Description

technical field [0001] The present invention relates to a backlight device, a display device, and a television receiver, and more particularly, to a backlight device, a display device, and a television receiver including a substrate on which a point light source is mounted and a connector provided on the substrate. Background technique [0002] Conventionally, a backlight device including a substrate on which point light sources are mounted and connectors provided on the substrate is known as a backlight device for irradiating light to a display panel. [0003] This conventional backlight device includes: a plurality of substrates on which a plurality of LEDs (light-emitting diodes (point light sources)) are mounted; a connector arranged on the substrates to electrically connect the substrates; a reflection member arranged on A reflection sheet, etc. in a predetermined area on the substrate; an optical sheet, which is a diffusion sheet, etc., arranged on the light emitting s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S2/00F21V19/00F21V23/00G02F1/13357H04N5/66F21Y101/02
CPCG02F2001/133613G02F2001/133612G02F1/133603G02F1/133611G02F1/133612G02F1/133613
Inventor 毛利裕一
Owner SHARP KK