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Light source color compensation method and projector device using same

A technology of chromaticity compensation and light source, which is applied in the direction of using projection device image reproducer, projection device, color TV parts, etc., can solve the problems affecting the use of projection device, brightness deviation, etc., to ensure the projection effect Effect

Inactive Publication Date: 2017-09-15
QISDA OPTRONICS (SUZHOU) CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

In fact, the brightness of each color of the mercury lamp will shift differently under different brightness, causing the light emitted by the lamp source to affect the use of the actual projection device

Method used

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  • Light source color compensation method and projector device using same
  • Light source color compensation method and projector device using same
  • Light source color compensation method and projector device using same

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Embodiment Construction

[0025] The following descriptions of the various embodiments refer to the accompanying drawings to illustrate specific embodiments in which the present invention can be practiced. The directional terms mentioned in the present invention, such as "upper", "lower", "front", "rear", "left", "right", "side", etc., are only referring to the directions of the attached drawings. Therefore, the directional terms used are used to illustrate and understand the present invention, but not to limit the present invention.

[0026] In the following embodiments, the same parts are denoted by the same symbols in different drawings.

[0027] Please refer to figure 1 , figure 1 It is a schematic block diagram of the projection device of the present invention. The projection device 1000 includes a light source 100 and a processing unit 200 , and the processing unit 200 is coupled to the light source 100 . The processing unit 200 is configured to determine the first deviation value ΔCR accordi...

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Abstract

The invention discloses a light source color compensation method and a projector device using same. The light source color compensation method comprises the steps of measuring first color values of a first color of a light source under different brightness, determining a first deviation value according to a first target color value of the first color under different brightness and the first color values, and building a corresponding first table; turning on the light source, and measuring that the light source has first brightness; searching the first table, and determining the first deviation value corresponding to the first brightness; and adjusting the first color value according to the first deviation value till the adjusted first color value is equal to the corresponding first target color value. Through adoption of the method, the brightness of each color output finally is in accordance with target Gamma setting, so as to ensure the projection effect of the projector device.

Description

technical field [0001] The present invention relates to a lamp source chromaticity compensation method and a projection device using the same, in particular to a method for performing chromaticity compensation for the deviation of the brightness of each color of a lamp source under different brightnesses and a projection device using the method. Background technique [0002] Generally, the working principle of a projection device using a light source lamp to project images is to modulate the light beam emitted by the light source lamp according to image information to form an optical image, and enlarge and project the optical image on an imaging plane. Such projection devices are widely used in information combination media such as conferences, societies, and exhibitions. As a light source lamp, a high-pressure mercury lamp or a metal halide lamp is generally used. When the projection device is in use, light is emitted through a single mercury lamp, and the light is filtere...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G03B21/20H04N9/31
CPCG03B21/2053G03B21/206H04N9/3182H04N9/3191
Inventor 梁立伟卓之威
Owner QISDA OPTRONICS (SUZHOU) CO LTD
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