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Backlight light source and display device

A technology of backlight light source and light source area, which is applied in the field of semiconductors, can solve the problems of high power consumption, reduce the brightness of the backlight light source, turn off, etc., and achieve the effect of improving the contrast

Active Publication Date: 2017-12-22
XIAMEN TIANMA MICRO ELECTRONICS
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In order to achieve high brightness, the power consumption of the backlight light source is generally large, and in order to reduce the power consumption of the backlight light source, the prior art proposes a technology for local backlight adjustment, so that the LED particles in the backlight light source can be adjusted according to the brightness and darkness of the image. The brightness of the backlight light source in the corresponding part of the highlighted part of the display screen can reach the maximum, while at the same time the brightness of the backlight light source can be reduced or even turned off in the dark part

Method used

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  • Backlight light source and display device

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Embodiment Construction

[0027] Various exemplary embodiments of the present invention will now be described in detail with reference to the accompanying drawings. It should be noted that the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise.

[0028] The following description of at least one exemplary embodiment is merely illustrative in nature and in no way taken as limiting the invention, its application or uses.

[0029] Techniques, methods and devices known to those of ordinary skill in the relevant art may not be discussed in detail, but where appropriate, such techniques, methods and devices should be considered part of the description.

[0030] In all examples shown and discussed herein, any specific values ​​should be construed as illustrative only, and not as limiting. Therefore, other instances of the exemplary embodiment may have dif...

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Abstract

The invention discloses a backlight light source and a display device. The backlight light source comprises a circuit board, LED particles and light barrier chips, wherein the LED particles comprise fixed surfaces and light emitting surfaces relatively arranged; the fixed surfaces are fixed on the circuit board; the backlight light source is provided with at least two light source areas arranged in a first direction in sequence; multiple LED particles are arranged in each light source area; and the light barrier chips are arranged on one sides, far from the circuit board, of the light emitting surfaces of the LED particles. Light rays generated by each light source area are limited in the area of self light source area by the light barrier chips as far as possible, so that the influence on other light source areas is reduced or prevented, and the contrast of the display device is improved.

Description

technical field [0001] The present invention relates to the technical field of semiconductors, and more particularly, to a backlight source and a display device. Background technique [0002] Head Up Display (HUD) is a flight aid commonly used in aircrafts. Head-up means that the pilot can see the important information he needs without looking down, reducing the frequency of the pilot needing to look down at the instruments, avoiding interruption of attention and loss of control over situation awareness (Situation Awareness). Because of the convenience of HUD and the ability to improve driving safety, cars and other means of transportation have also followed up the installation. [0003] HUD generates light through its backlight source, and forms a picture through its display panel. The picture is reflected and projected onto the medium through a flat mirror and a curved mirror, so that the front gear of the car can form a picture that is visible to the driver when looking ...

Claims

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Application Information

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IPC IPC(8): F21S8/00F21V19/00F21V11/02F21V11/06F21V3/04F21V29/87F21V15/01F21Y105/10F21Y115/10
CPCF21S8/00F21V3/062F21V11/02F21V11/06F21V15/01F21V19/0025F21V29/87F21Y2105/10F21Y2115/10
Inventor 洪耀武
Owner XIAMEN TIANMA MICRO ELECTRONICS
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