Projection system and brightness adjusting method applied to same

A projection system and brightness adjustment technology, applied in the field of projection, can solve problems such as poor projection effect of the projection system, and achieve the effect of improving user experience and good white balance effect.

Active Publication Date: 2018-02-23
APPOTRONICS CORP LTD
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] In order to solve the technical problem of poor projection picture effect of the prior art projection system, it is necessary to provide a projection system with better picture effect and a brightness adjustment method applied to the projection system

Method used

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  • Projection system and brightness adjusting method applied to same
  • Projection system and brightness adjusting method applied to same
  • Projection system and brightness adjusting method applied to same

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Embodiment Construction

[0069] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention. In the case of no conflict, the following embodiments and features in the embodiments can be combined with each other.

[0070] It should be noted that, in the present invention, when a component is considered to be "connected" to another component, it may be directly connected to another component, or may be indirectly connected to another component through an intermediate component.

[0071] Unless otherwise defined, all technical and scientific terms used her...

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Abstract

The invention provides a projection system brightness adjusting method; the projection system comprises a lighting device and a light valve; the lighting device is used for emitting lights of at leasttwo colors; the light valve is used for receiving the lights of at least two colors, and modulating images according to inputted image data so as to display projection frames; the method comprises the following steps: obtaining to-be-projected projection brightness of the projection system; obtaining each color light intensity preset ratio corresponding to the to-be-projected projection brightness; forming each color light modulation signal according to the each color light intensity preset ratio and the inputted image data; inputting each color light modulation signal into the projection system light valve. The light valve modulates the images in a time period of the lighting device emitting the corresponding color light according to each color light modulation signal, thus enabling eachcolor light intensity ratio of the projection system true projection image to be equal to each color light intensity preset ratio. The invention also provides the projection system.

Description

technical field [0001] The invention relates to the field of projection technology, in particular to a projection system and a brightness adjustment method applied to the projection system. Background technique [0002] Existing projection systems generally include a light emitting device, a light valve, and a control device. The light emitting device emits three colors of light, red, green, and blue. An image is modulated according to input image data. However, in the existing images projected and displayed after being modulated by the light valve, due to insufficient or excessive brightness of a certain color [0003] This results in color cast, resulting in poor white balance, which affects the projected picture effect of the projection system. Contents of the invention [0004] In order to solve the technical problem of poor projection picture effect of the prior art projection system, it is necessary to provide a projection system with better picture effect and a br...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20
CPCG03B21/00H04N9/31G03B21/2053
Inventor 张宝英郭祖强李屹
Owner APPOTRONICS CORP LTD
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