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Image process method and device for image display instrument

An image display and image processing technology, applied in the direction of color signal processing circuits, etc., can solve the problems of difficult screen recognition, inability to recognize, and low color signal.

Inactive Publication Date: 2007-05-02
LG ELECTRONICS(NANJING) PLASMA CO LTD
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Problems solved by technology

[0005] This will lead to the problem that when the color signal level is too high in the state of low grayscale, or the level of color signal is too low in the state of high grayscale, the picture is prone to problems of recognition itself.
[0006] Therefore, in the past, the level of the color signal was too high in the state of low grayscale, or the level of the color signal was too low in the state of high grayscale, which caused the problem of displaying unrecognizable pictures, which became an urgent technology. problems developed to solve

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  • Image process method and device for image display instrument
  • Image process method and device for image display instrument

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Embodiment Construction

[0030] specific implementation plan

[0031] What Fig. 1 shows is the schematic structural diagram of the image display apparatus according to the effective embodiment of the present invention, by gray scale signal (Y) / color signal (C) conversion part (100), decoder (110), A / D A conversion unit (120), a data rearrangement unit (130), a lookup table (140), a control unit (150) and a storage unit (160) are formed.

[0032] The above-mentioned Y / C conversion unit (100) separates a gradation signal (Y) and a color signal (C) from the input composite image signal to supply to a decoder (110). The above-mentioned decoder (110) checks out the APL value of the grayscale signal provided by the Y / C conversion part (100) and provides it to the second A / D conversion part (122), and finally restores the color signal to an RGB signal to provide to the first A / D conversion unit (121).

[0033] At this time, the first A / D conversion unit (121) converts the RGB signal provided by the decoder...

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Abstract

This invention relates to an image process method and a device for image display device, in which, the image process method includes two steps: 1, receiving APL and RGB values, 2, regulating the level of the RGB data based on the APL value, the image process device includes a Y / C conversion part, a decoder, an AD conversion part, a consult list, a data rearranging part and a control part, which regulates the level of color signals based on the APL so as to solve the problem that menu is hardly to be recognized due to the over too high level of color signals under the state of low grayness or over too low level of the color signals at the state of high grayness.

Description

technical field [0001] The present invention relates to an image display device, in particular to an image processing method of the image display device and its device. Background technique [0002] Generally speaking, after a plasma (PDP) TV is input with an analog composite image signal, it will be separated into red / green / blue input mode (RGB) and horizontal and vertical synchronous signals, and the equivalent grayscale After the average gray level of the signal average, in order to improve the brightness of the PDPTV, it is converted into digital data of N bits according to the specified sample timer, and then the converted digital data is plotted to match the brightness characteristics of the PDP Compatible data are output, and these data are used for harmonization processing. For example, the image data of one field is regenerated with multiple replacement fields whose retention time is gradually shortened from the upper bit (MSB) to the lower bit (LSB). Composed so t...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N9/64
Inventor 申在允
Owner LG ELECTRONICS(NANJING) PLASMA CO LTD
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