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Zoning light control side entry type backlight

An edge-type backlight and backplane technology, applied in the directions of light guides, optics, optical components, etc., can solve problems such as increasing the cost of TVs, and achieve the effect of improving product competitiveness and reducing thickness

Pending Publication Date: 2020-10-02
ANHUI KONKA ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, conventional partition light control adopts the direct-type backlight method. Since the direct-type backlight requires a certain light mixing distance, if you want to shorten the light mixing distance and at the same time ensure the uniformity of the picture without shadows, you need to increase the number of light sources. Will undoubtedly greatly increase the cost of the TV

Method used

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  • Zoning light control side entry type backlight
  • Zoning light control side entry type backlight

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Embodiment Construction

[0012] Below, the technical solution of the present invention will be described in detail through specific examples.

[0013] Such as Figure 1-2 as shown, figure 1 Schematic diagram of the structure of a zone-controllable side-entry backlight proposed for the invention; figure 2 It is a schematic diagram of the arrangement structure of the light bars in a side-lit backlight with partitionable light control proposed for the invention.

[0014] refer to Figure 1-2 , a kind of partitionable light control edge type backlight proposed by the present invention, comprising: a backplane 1, a light guide plate 2 located on one side of the backplane 1, and a light guide plate 2 located between the light guide plate 2 and the backplane 1 and fixed on the backplane 1 Light bar 3 on the above, where:

[0015] The light guide plate 2 includes a plane part and a slope part located on one side of the plane part, the angle between the plane part and the slope part is an obtuse angle; th...

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PUM

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Abstract

The invention discloses a zoning light control side entry type backlight which comprises a back plate, a light guide plate located on one side of the back plate and a light bar located between the light guide plate and the back plate and fixed to the back plate, the light guide plate comprises a plane part and an inclined surface part located on one side of the plane part, and the included angle between the plane part and the inclined surface part is an obtuse angle; the inclined surface part is coated with a reflecting material; the light bar is located on the inclined face part and below theinclined face part and is divided into a plurality of light-emitting sections in the length direction of the light bar, and a plurality of LED lamp beads are arranged in each light-emitting section.The thickness of a partition backlight television can be reduced, and the product competitiveness is improved.

Description

technical field [0001] The invention relates to the technical field of liquid crystal televisions, in particular to a side-entry backlight with zone-controlled light control. Background technique [0002] Partitioned backlighting is a common way for high-end LCD TVs to achieve high dynamic contrast ratio. This technology enables LCD TVs to obtain a display effect comparable to that of OLEDs. The bright places are bright, and the dark places are dark. However, conventional partition light control adopts the direct-type backlight method. Since the direct-type backlight requires a certain light mixing distance, if you want to shorten the light mixing distance and at the same time ensure the uniformity of the picture without shadows, you need to increase the number of light sources. Undoubtedly, the cost of TV will be greatly increased. Contents of the invention [0003] In order to solve the technical problems in the background technology, the present invention proposes a si...

Claims

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Application Information

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IPC IPC(8): G02F1/13357G02B6/00
CPCG02F1/133615G02B6/0055
Inventor 陈尚尚周远凯张文兵
Owner ANHUI KONKA ELECTRONICS