Light homogenizing device and display equipment

A uniform light device and light beam technology, applied in projection devices, optics, optical components, etc., can solve problems such as background stripes, good coherence of laser light sources, and easy to generate speckles

Pending Publication Date: 2021-07-16
深圳市TCL高新技术开发有限公司
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  • Abstract
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  • Claims
  • Application Information

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Problems solved by technology

However, due to the good coherence of the laser light source, problems such as speckle and background stripes are prone to occur. Therefore

Method used

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  • Light homogenizing device and display equipment
  • Light homogenizing device and display equipment
  • Light homogenizing device and display equipment

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Embodiment Construction

[0031] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention, not to limit the present invention.

[0032] It should be noted that when an element is referred to as being “fixed” or “disposed on” another element, it may be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0033] It should also be noted that the orientation terms such as left, right, up and down in the embodiments of the present invention are only relative concepts or refer to the normal use state of the product, and should not be regarded as re...

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Abstract

The invention provides a light homogenizing device and display equipment. The light homogenizing device comprises a first speckle eliminating assembly, a second speckle eliminating assembly and a third speckle eliminating assembly which are sequentially arranged along a light path, wherein the first speckle eliminating assembly comprises a first speckle eliminating piece and is used for diffusing a light beam entering the first speckle eliminating piece to form a first divergent light beam; the second speckle eliminating assembly comprises a second speckle eliminating piece and an electromagnetic vibration piece, the electromagnetic vibration piece is connected with the second speckle eliminating piece and used for controlling the second speckle eliminating piece to vibrate, and the second speckle eliminating piece is used for receiving the first divergent light beam and diffusing the first divergent light beam to form a second divergent light beam; and the third speckle eliminating assembly comprises a third speckle eliminating piece and a driving piece used for driving the third speckle eliminating piece to axially rotate, and the third speckle eliminating piece is used for receiving the second divergent light beam and emitting the second divergent light beam after the second divergent light beam is diffused. According to the technical scheme, the speckle effect of laser can be effectively reduced, and the light beam homogenization effect is achieved.

Description

technical field [0001] The invention belongs to the technical field of display equipment, and in particular relates to a dodging device and a display equipment. Background technique [0002] In recent years, laser display technology has been widely used in various occasions due to its advantages of high brightness, wide color gamut, high color reproduction, long life, energy saving and environmental protection, especially in the field of projection display technology, the application of laser light source is also more and more. However, due to the good coherence of the laser light source, problems such as speckle and background stripes are easy to occur. Therefore, how to effectively reduce or eliminate the phenomenon of laser speckle has become an urgent problem to be solved in laser display devices. Contents of the invention [0003] The purpose of the present invention is to overcome the shortcomings of the above-mentioned prior art, and provide a uniform light device,...

Claims

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Application Information

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IPC IPC(8): G02B27/48G02B27/09G03B21/20
CPCG02B27/48G02B27/0955G02B27/0933G03B21/208
Inventor 许礼强杨兴
Owner 深圳市TCL高新技术开发有限公司
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