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Large-area light source structure with laminated adjustable light-emitting areas

A technology with a light-emitting area and a large area, applied in the field of light sources to achieve cost-saving effects

Pending Publication Date: 2022-01-28
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The present invention proposes a large-area light source structure with stacked and adjustable light-emitting areas, which can solve the problem that the side-type backlight cannot perform regional dynamic dimming and angle adjustment under the existing flat panel display technology

Method used

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  • Large-area light source structure with laminated adjustable light-emitting areas
  • Large-area light source structure with laminated adjustable light-emitting areas
  • Large-area light source structure with laminated adjustable light-emitting areas

Examples

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Embodiment 1

[0101] refer to figure 1 , which is the case of the minimum angle of the inclined light guide plate. In this embodiment, the dimming area is made up of two plates, one of which can be a shading plate 5. Therefore, there are three dimming areas in this embodiment, namely the light shielding plate and the first light guide plate, the first light guide plate and the second light guide plate, the second light guide plate and the third light guide plate. The method of tilting the light guide plate 4 to realize the adjustable light area area includes: first, the brightness of the LED light source 31 determines the brightness and darkness of the corresponding light guide plate area; second, the size of the adjustable light area of ​​each light guide plate is determined by The two light guide plates stacked up and down are jointly determined. The lower surface of the upper light guide plate is used as a light-shielding plate, and the lower light guide plate is used as a light-emittin...

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Abstract

The invention provides a large-area light source structure with laminated adjustable light-emitting areas. The large-area light source structure comprises a plurality of light-emitting units which are sequentially arranged at channels in the top face of a back plate to form a light source array. One end of the channel is a light reducing side, and the other end of the channel is a light increasing side; each light-emitting unit is a plate-shaped object capable of sliding at the channel; the light output end of the light source array comprises a light-emitting surface at the top of each light-emitting unit; one side of each light-emitting unit is a sliding end which slides at the channel; in the direction of the intensifying side of the channel, the bottom surface of the light-emitting unit is arranged on the top surface of the next light-emitting unit in a sliding manner to form a shading surface; the sliding end of each light-emitting unit faces the dimming side of the channel. When the light-emitting units of the light source array slide towards the channel light-reducing side, the shading faces between the light-emitting units are enlarged to reduce the light-emitting amount, and when the light-emitting units slide towards the channel light-increasing side, the shading faces between the light-emitting units are reduced to increase the light-emitting amount. According to the invention, the problem that the lateral backlight cannot be subjected to regional dynamic dimming and angle adjustment under the existing panel display technology can be solved.

Description

technical field [0001] The invention relates to the field of light source technology, in particular to a large-area light source structure with stacked adjustable light emitting regions. Background technique [0002] Nowadays, display technology is developing very rapidly. Flat panel display technology has become one of the most widely used technologies in daily life. With the development of flat panel display technology, the demand for better display products is also increasing. This The demand is also applicable to indoor and outdoor large-size displays, such as for product advertisements, creating an environment, etc. At present, most of the indoor and outdoor large-size display screens use a large-size LED array display. As far as the current technical level is concerned, it is impossible to achieve a good display effect under the constraints of power consumption and cost. Because liquid crystal has the characteristics of low voltage, low power consumption, easy coloriz...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G02F1/13357G02B6/00
CPCG02F1/133615G02F1/133614G02B6/0058G02B6/0068G02B6/0073
Inventor 陈恩果谢建龙肖世杰叶芸徐胜郭太良
Owner FUZHOU UNIV
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