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Light-emitting device, and emitted light angle adjusting method and device thereof

A light-emitting device and a technology for emitting light, which are applied to the cooling/heating device of the lighting device, the light guide of the lighting device, the lighting device, etc., and can solve the problems of increased power consumption, increased manufacturing cost, and reduced screen brightness

Inactive Publication Date: 2018-07-06
TIANJIN SAMSUNG ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the prior art, in order to increase the screen brightness of display products, it is generally achieved by increasing the rated power of the light source. However, the increase in the rated power of the light source will increase the manufacturing cost during the manufacturing process of the display product; in the display product During use, it will cause an increase in power consumption
Moreover, it is still unavoidable to avoid the disadvantages of reduced brightness of the screen after using the display product for a long time

Method used

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  • Light-emitting device, and emitted light angle adjusting method and device thereof
  • Light-emitting device, and emitted light angle adjusting method and device thereof
  • Light-emitting device, and emitted light angle adjusting method and device thereof

Examples

Experimental program
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Effect test

Embodiment 1

[0036] See attached figure 1 The light-emitting device provided by Embodiment 1 of the present invention includes a base 1, a light source 3, a light guide surface and a thermally deformable object arranged on the back of the light guide surface, and the light guide surface is arranged on the optical path of the light source 3; the base 1 includes a body 1c ; The light source 3 is fixedly connected to the main body 1c; if the brightness value of the picture determined by the light source 3 decreases more than the preset value, the heat deformable object expands to reduce the reflection angle of the light guide surface, so that the light source 3 enters the light guide surface The incident light quantity is not less than the preset incident light quantity. In this embodiment, the base 1 includes a main body 1c, a first connecting arm 1a and a second connecting arm 1b, one end of the first connecting arm 1a is fixedly connected to one end of the main body 1c, and one end of the ...

Embodiment 2

[0047] See attached image 3 , the method for adjusting the emitted light angle of the light emitting device provided by the present invention comprises the following steps:

[0048] Step 201: Obtain the brightness value of the picture determined by the light source;

[0049] Step 202: judging whether the thermally deformable object needs to be expanded according to the decrease of the brightness value of the screen;

[0050] When it is judged that the thermally deformable object needs to be expanded, perform step 203: take measures to expand the thermally deformable object to reduce the reflection angle of the light guide surface, so that the incident light quantity of the light source entering the light guide surface is not less than the preset incident light quantity;

[0051] When it is determined that the thermally deformable object does not need to be expanded, step 204 is performed: maintaining the current state of the thermally deformable object.

[0052] The method ...

Embodiment 3

[0057] See attached Figure 4 The device for adjusting the emitted light angle of the light emitting device provided in the third embodiment of the present invention includes a brightness value acquiring module 301 , a judging module 302 and an adjusting module 303 . The brightness value acquisition module 301 is used to obtain the brightness value of the picture determined by the light source; the judging module 302 is used to judge whether it is necessary to expand the thermally deformable object according to the decline rate of the brightness value of the screen; when it is determined that the thermally deformable object needs to be expanded, The adjustment module 303 is used to take measures to make the thermally deformable material expand, so as to reduce the reflection angle of the light guide surface, so that the amount of light incident on the light guide surface by the light source (3) is not less than a preset amount of light.

[0058] The emission angle adjustment d...

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Abstract

The invention discloses a light-emitting device, and an emitted light angle adjusting method and device thereof and belongs to the technical field of displaying. The light-emitting device comprises abase, a light source, a light-guiding face and a thermal deformation object arranged on the reverse side of the light-guiding face. The light-guiding face is arranged on a light path of the light source, and the base comprises a body. The light source is fixedly connected to the body, if the decrease amplitude of a brightness value of the picture decided by the light source is larger than a presetvalue, the thermal deformation object is expanded to decrease the reflection angle of the light-guiding face, and thus the entering amount of light shot into the light-guiding face by the light source is not smaller than the preset light entering amount. The method comprises the following steps that the brightness value of the picture decided by the light source is obtained, when it is judged that the thermal deformation object needs to be expanded, measures are taken to enable the thermal deformation object to be expanded so as to decrease the reflection angle of the light-guiding face, andthus the entering amount of the light shot into the light-guiding face by the light source is not smaller than the preset light entering amount. The device can be used for achieving the method. According to the light-emitting device, and the emitted light angle adjusting method and device thereof, the picture brightness of a displayed product can be at the high level all the time.

Description

technical field [0001] The invention relates to the field of display technology, in particular to a light emitting device, a method and a device for adjusting the angle of emitted light. Background technique [0002] With the development of display technology and manufacturing process, how to improve the screen brightness of display products has become the main direction of development of various display product manufacturers. [0003] In the prior art, in order to increase the screen brightness of display products, it is generally achieved by increasing the rated power of the light source. However, the increase in the rated power of the light source will increase the manufacturing cost during the manufacturing process of the display product; in the display product During use, it will cause an increase in power consumption. Moreover, it is still unavoidable to avoid the drawbacks of reduced brightness of the screen after using the display product for a long time. Contents...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F21S8/00F21V8/00F21V14/00F21V29/90F21Y115/10
CPCF21S8/00F21V14/00F21V29/90F21V2200/20
Inventor 吴波
Owner TIANJIN SAMSUNG ELECTRONICS CO LTD
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