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Equipment and method for detecting quality of image display apparatus

A technology for image display and quality inspection, applied in measuring devices, measuring electronics, image communication, etc., can solve inconvenience and other problems, and achieve the effect of efficient inspection

Inactive Publication Date: 2009-12-09
新益发展有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Traditionally, to measure these parameters, it is necessary to send the image display device to the laboratory and use some expensive instruments to measure
This approach is not only inconvenient, but also not suitable for use in production lines

Method used

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  • Equipment and method for detecting quality of image display apparatus
  • Equipment and method for detecting quality of image display apparatus
  • Equipment and method for detecting quality of image display apparatus

Examples

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Comparison scheme
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Embodiment Construction

[0014] figure 1 Shown is an internal block diagram of a detection device according to a preferred embodiment of the present invention. Please refer to figure 1 The detection device 100 provided by the present invention is suitable for detecting quality-related parameters of an image display device 150 , such as parameters such as screen contrast, color difference, color temperature, screen saturation, and screen response rate. Through these parameters, the quality of the image display device 150 can be judged. In this embodiment, the image display device 150 may be a cathode ray tube television, a liquid crystal television, a plasma display, a projector, and the like.

[0015] The detection device 100 includes a watermark embedding module 110 and an analysis module 120 . The watermark embedding module 110 is coupled to the analysis module 120 and is used to generate a test video information VD1 embedded with a digital watermark for the image display device 150 . The analys...

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Abstract

The invention discloses a quality inspection method of an image display device, which includes generating test video information embedded with digital watermarks. In addition, the present invention also enables an image display device to display test video information, and extracts digital watermarks from the test video information displayed by the image display device. In this way, the present invention can compare the extracted digital watermark with the original digital watermark, and judge the quality of the image display device according to the comparison result.

Description

technical field [0001] The present invention relates to a detection technology of an image display device, and in particular to a detection technology of an image display device using a digital watermark. Background technique [0002] There are many types of image display devices. Generally speaking, it can be divided into traditional cathode ray tube display devices, flat panel display devices, and projection display devices. The flat panel display is, for example, a general liquid crystal display, an organic light emitting diode display, a plasma display, and the like. Projection displays can be distinguished from front-projection displays and rear-projection displays. [0003] Due to the advantages of small size, low power consumption, low radiation, light weight, and wide display color gamut, flat panel displays have gradually replaced traditional cathode ray tube displays and become the mainstream in the image display device market. At present, there are traces of fl...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/00G09G5/00G01R31/00H04N7/167
Inventor 陈志贤詹鑫杰
Owner 新益发展有限公司
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