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

Illumination device, display device, and television receiver device

A technology for lighting devices and display devices, which is applied in cooling/heating devices of lighting devices, lighting devices, televisions, etc., and can solve problems such as inability to maintain optical properties and achieve good optical properties

Inactive Publication Date: 2014-12-24
SHARP KK
View PDF4 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

When the light guide plate expands, contracts, etc., the distance between the light source and the light incident surface of the light guide plate fluctuates or the light guide plate vibrates in the direction of its plate surface, and good optical characteristics cannot be maintained

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
  • Illumination device, display device, and television receiver device
  • Illumination device, display device, and television receiver device
  • Illumination device, display device, and television receiver device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0045] Embodiment 1 will be described with reference to the drawings. In addition, X-axis, Y-axis, and Z-axis are shown in a part of each drawing, and it draws so that each axis direction may be a common direction in each drawing. Wherein, the Y-axis direction is consistent with the vertical direction, and the X-axis direction is consistent with the horizontal direction. In addition, unless otherwise specified, descriptions of up and down are based on the vertical direction.

[0046] The television receiver TV includes a liquid crystal display device (an example of a display device) 10 , front and rear cabinets Ca and Cb for sandwiching the liquid crystal display device 10 , a power supply P, a tuner T, and a stand S. Additionally, the figure 2 The shown upper side is set as the front side, and the lower side in the figure is set as the back side. Such as figure 2 As shown, the liquid crystal display device 10 has a horizontally elongated quadrangular shape as a whole, a...

Embodiment approach 2

[0066] Embodiment 2 will be described with reference to the drawings. The shape and arrangement of the restricting member 140 in the second embodiment are different from those in the first embodiment. The other configurations are the same as those in Embodiment 1, and therefore descriptions of the configurations, operations, and effects are omitted. In addition, in Figure 8 , Figure 9 in, respectively Figure 5 , Figure 7 The parts to which the numeral 100 is added are the same as those described in the first embodiment.

[0067] In the backlight unit 124 of Embodiment 2, as Figure 10 As shown, the restricting member 140 is formed in a block shape having a concave portion opening downward so as to be concave in cross-section and side view. Specifically, the restricting member 140 includes: a first side wall portion 140a and a second side wall portion 140b corresponding to both side walls of the concave portion; and an upper surface portion 140c corresponding to the b...

Embodiment approach 3

[0073] Embodiment 3 will be described with reference to the drawings. Embodiment 3 differs from Embodiment 2 in that the holding member 240 is provided with a protruding portion 240s. The other configurations are the same as those in Embodiment 2, and thus descriptions of the configurations, actions, and effects are omitted. In addition, in Figure 11 in, yes Figure 5 The portions where the numeral 200 is added to the reference numerals are the same as those described in the second embodiment.

[0074] In the liquid crystal display device 210 of Embodiment 3, as Figure 11 As shown, a fitting protrusion 240s is provided on the rear surface 240a2 of the first side wall portion 240a of the restricting member 240 (the portion opposite to the plate surface of the rising portion 236b). The direction (Y-axis direction) protrudes toward the side of the rising portion 236b without passing through the length of the rising portion 236b. On the other hand, a fitting hole 236t of a ...

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 device (24) comprises: a light guide plate (20) further comprising a light entry face (20a), and a light exit face (20b); an LED (28); an LED substrate (30); a chassis (22); a heat radiating member (36) which has a heat radiating property, further comprising a bottom face part (36a) which forms a plate shape in parallel with a bottom plate (22a) and is positioned upon the bottom plate (22a), and an upright part (36b) with the LED substrate (30) attached upon the plate face thereof and the length thereof in the longitudinal direction being greater than the length of the LED substrate (30) in the longitudinal direction; and a regulating member (40) having elasticity, which is positioned in a site removing a space between the LED (28) and the light entry face (20a), which regulates the distance between the LED (28) and the light guiding plate (20) by at least a portion thereof making contact with the lateral plate face of the upright part (36b) to which the LED substrate (30) is attached and the light entry face (20a), wherein the portion thereof makes contact with a lateral face of a latitudinal side of the LED substrate (30).

Description

technical field [0001] The present invention relates to an illuminating device, a display device and a television receiving device. Background technique [0002] In recent years, the display elements of image display devices such as television receivers have been transferred from existing Braun tubes to thin display devices using thin display elements such as liquid crystal panels and plasma display panels, enabling thinning of image display devices. Since the liquid crystal panel used therein does not emit light itself, the liquid crystal display device additionally requires a backlight device as an illuminating device. As an example of such a backlight device, there is known an edge-light type backlight device in which a light incident surface is provided on a side surface of a light guide plate, and light sources such as LEDs are arranged on the side surface of the light guide plate. [0003] In an edge-light type backlight device, the light guide plate may expand, contr...

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 Applications(China)
IPC IPC(8): F21S2/00F21V29/00G02F1/1333G02F1/13357F21Y101/02
CPCG02F1/133615G02B6/0055G02B6/0091G02F1/133608G02B6/0085G02F1/133628G02B6/0066H04N5/655
Inventor 石元良武堀口裕纪
Owner SHARP KK