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a display device

A display device and display panel technology, which is applied in the direction of instruments, nonlinear optics, optics, etc., can solve problems such as the inability to realize ultra-thin backlight design, the inability to achieve uniformity of backlight, and increase the number of LEDs used, so as to improve the light mixing effect , Improve the light mixing effect and reduce the overall thickness

Active Publication Date: 2022-05-20
HISENSE VISUAL TECH CO LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] However, at present, the height of the lens used with the LED reaches about 5mm, and the ultra-thin backlight design cannot be realized; and if the lens is removed, the backlight cannot achieve better uniformity. In order to improve the uniformity of the backlight, the LED has to be greatly increased. Use quantity, resulting in an increase in production costs

Method used

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Embodiment Construction

[0036] In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described below in conjunction with the accompanying drawings and embodiments. Example embodiments may, however, be embodied in many forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals denote the same or similar structures in the drawings, and thus their repeated descriptions will be omitted. The words expressing position and direction described in the present invention are all described by taking the accompanying drawings as an example, but changes can also be made according to needs, and all changes are included in the protection scope of the present invention. The drawings of the present inv...

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Abstract

The invention discloses a display device, comprising: a miniature light-emitting diode lamp board, and an angle selection layer located on the light-emitting side of the miniature light-emitting diode lamp board. The transmission of light rays in a range, wherein the incident angle value corresponding to the first incident angle range is smaller than the incident angle corresponding to the second incident angle range. The reflective layer on the micro-LED lamp board can diffusely reflect the light reflected by the angle selection layer, and re-enter the angle selection layer, so that the light at the second incident angle after diffuse reflection can be transmitted, while the light at the first incident angle The light continues to repeat the above-mentioned reflection operation, and finally the light intensity distribution of the backlight module is uniform.

Description

technical field [0001] The present invention relates to the field of display technology, in particular to a display device. Background technique [0002] As the current mainstream display screen, liquid crystal display has the advantages of low power consumption, small size, and low radiation. The liquid crystal display panel is a non-self-illuminating panel and needs to be used in conjunction with a backlight module. [0003] The current direct-type backlight module usually uses a light emitting diode (Light Emitting Diode, LED for short) as a backlight source, which has the advantages of high brightness of the backlight and no decrease in brightness after long-term use. The outgoing light of the LED is distributed in a Lambertian shape. In order to expand the irradiation range of the LED spot, LEDs are usually combined with a lens to increase the brightness of the large-angle outgoing light of the LED. [0004] However, at present, the height of the lens used with the LE...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/13357
CPCG02F1/133611G02F1/133606G02F1/133605G02F1/133603
Inventor 李富琳乔明胜
Owner HISENSE VISUAL TECH CO LTD
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