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Light guide plate with multi-ring lattice points

A technology of light guide plate and dot, applied in the direction of light guide, optics, optical components, etc., can solve the problem of uneven brightness of the light guide plate, and achieve the effect of optimizing the diffusion uniformity, increasing the diffusion range, and improving the uniformity and brightness of light output.

Active Publication Date: 2022-04-26
东莞市现代精工实业有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] In order to solve the problem of uneven brightness when the light guide plate emits light, this application provides a light guide plate with multi-ring dots

Method used

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  • Light guide plate with multi-ring lattice points
  • Light guide plate with multi-ring lattice points
  • Light guide plate with multi-ring lattice points

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] refer to figure 1 , a light guide plate with multi-ring dots, comprising a light guide plate body 1, the opposite side surfaces of the light guide plate body 1 are a dot surface 2 and a light exit surface 3, and one end of the light guide plate body 1 is set as a light source incident end 4. In this embodiment, a plurality of dot bodies 5 are arranged on the dot surface 2, and the dot bodies 5 can be arranged in a regular or random way so as to adjust the light energy distribution. In addition, the light-emitting surface 3 is provided with a light-emitting slot 9, and the light-emitting slot 9 is arranged along the direction parallel to the light source from the light source incident end 4 to the end far away from the light source incident end 4. Specifically, the light-emitting slot 9 is a V-shaped groove, and the light-emitting slot 9 9. The setting range of the depth is 20um-40um, and the setting range of the distance between the two opposite groove sides of two adja...

Embodiment 2

[0065] refer to Figure 9 , different from Embodiment 1, the network dot also includes at least three protrusions 7, at least three protrusions 7 are all arranged on the network dot surface 2, and at least three protrusions 7 and at least three first depressions There is a one-to-one correspondence between the portions 6 , and each raised portion 7 is located in the corresponding first recessed portion 6 . At least three protrusions 7 protrude toward an end away from the interior of the light guide plate body 1 . In this embodiment, the height of each protrusion 7 protruding from the screen dot surface 2 is set within a range of 10um-15um, which can effectively reduce the contact area between the reflective sheet and the light guide plate, and reduce wear on the light guide plate.

[0066] refer to Figure 10, in this embodiment, each raised portion 7 includes a first curved surface 71 and a second curved surface 72, and one side of the first curved surface 71 and the second...

Embodiment 3

[0073] refer to Figure 14 , different from Embodiment 2, a third recessed portion 20 is provided between at least three first recessed portions 6, and the third recessed portion 20 is recessed toward an end close to the interior of the light guide plate body 1, and the third recessed portion 20 The depth is higher than the depth of the second recessed part 8, and the setting range of the height difference is 2um-4um. At this time, the first recessed part 6, the second recessed part 8 and the third recessed part 20 form a step-level height difference, so that Adjust the direction of the light several times according to the transmission process of the light.

[0074] refer to Figure 15 And Fig. 16, when the third concave portion 20 is projected onto the dot plane 2, the orthographic projection surface of the third concave portion 20 is circular, and the orthographic projection surface of the third concave portion 20 and at least three first concave portions 6 The outer circu...

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Abstract

The invention relates to the field of production and processing of light guide plates, in particular to a light guide plate with multi-ring lattice points, which is characterized in that at least three first concave parts are arranged, the first concave parts are concave towards the inside of a light guide plate body, and first surfaces of the first concave parts reflect and diffuse part of light entering from a light source incident end; the diffusion range of original partial light is enlarged, the second face can reflect partial light, and partial light is diffused and distributed in the diffusion range of the first face to partial light, so that the diffusion range of the light of the dot body can be enlarged, the light is effectively guided, the light is reasonably distributed, and the brightness of the dot body is improved. Therefore, the light emitting uniformity and brightness are effectively improved, and the problem that the brightness is not uniform when the light guide plate emits light is solved.

Description

technical field [0001] The invention relates to the field of production and processing of light guide plates, in particular to a light guide plate with multi-ring dots. Background technique [0002] As the display part of electronic equipment, liquid crystal display has been widely used in various electronic products, such as smart phones, computers or tablets, etc., and the backlight is an important part of the liquid crystal display. The backlight includes LED light source, guide The light board and the circuit module, the LED light source is located on one side of the light guide plate to receive light, and the light guide plate conducts the light emitted by the LED light source and reflects the light to form a surface light source, which makes the LCD display. [0003] In the related art, a general light guide plate includes a light guide plate body. The two opposite surfaces of the light guide plate body are the light exit surface and the dot surface respectively. One e...

Claims

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Application Information

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IPC IPC(8): G02B6/00G02F1/13357
CPCG02B6/0038G02B6/0043G02F1/133615
Inventor 王小武
Owner 东莞市现代精工实业有限公司
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