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Apparatus and method thereof

a technology of display and image, applied in the field of display technology, can solve the problems of not being exactly equal to the native resolution of the panel, the resolution of an image signal outputted by a general video signal source,

Inactive Publication Date: 2008-12-04
REALTEK SEMICON CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Benefits of technology

The invention provides an apparatus and method for automatically detecting the resolution of an input image and adjusting it to match the native resolution of a flat panel display device. This ensures that the image is correctly displayed on the device. The apparatus includes a front-end circuit, a back-end circuit, and a determining unit, while the method involves receiving an image signal, selecting a mode, fetching the image signal, processing it, and adjusting the mode accordingly. The technical effect of the invention is to improve the display quality of images on flat panel display devices.

Problems solved by technology

Furthermore, the resolution of an image signal outputted by a general video signal source, such as personal computer (PC), digital video disc / disk player (DVD Player), and so forth, may not be exactly equal to the native resolution of the panel.

Method used

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Embodiment Construction

[0014]Generally, the image signals outputted from various video signal sources are generated according to a specific specification and each image according to a specific specification has a specific resolution. And in order to facilitate the receiving circuit of the display device to be able to detect the resolution of the image signal when inputting the image signal, it is necessary to perform mode detection on the image signal.

[0015]The format of the image signal further comprises other control signals besides the image data. For example, a general video or image signal further comprises data, horizontal synchronization signal (HS), vertical synchronization signal (VS), data enable signal (DEN), and so forth. Therefore, when performing the mode detection according to one embodiment of the invention, a measuring method can be used to obtain the relevant parameters of the image signal and thus which supporting mode (what kind of resolution) that the input image signal belongs to can...

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Abstract

The invention discloses a apparatus and related method. The apparatus comprises a front-end circuit, a back-end circuit and a determining unit. The front-end circuit is for measuring an image signal, determining the mode of the image signal according to the data of the image signal, and fetching image signal of the image signal. The back-end circuit is for processing the image signal according to the above-mentioned mode, and generating a feedback signal according to the status of the image signal after fetching there-to-fore. The determining unit is for generating a control signal to the front-end circuit according to the feedback signal for adjusting the setting of the mode.

Description

BACKGROUND OF THE INVENTION [0001]1. Field of the Invention[0002]The invention relates to display technology, particularly to a apparatus and a method thereof.[0003]2. Description of the Related Art[0004]At present, a digital display device, such as: liquid crystal display (LCD), plasma display panel (PDP), has gradually become the mainstream product in the market. And, in general, each of the panel has a native physical resolution. Furthermore, the resolution of an image signal outputted by a general video signal source, such as personal computer (PC), digital video disc / disk player (DVD Player), and so forth, may not be exactly equal to the native resolution of the panel. In other words, if a receiving circuit is applied in a LCD panel having 1280×1024 resolution, then the receiving circuit has to perform scaling up operation on the 640×480, 800×600, or 1024×768 image signal to match the native resolution of the panel of the digital display device.BRIEF SUMMARY OF THE INVENTION[00...

Claims

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Application Information

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Patent Type & Authority Applications(United States)
IPC IPC(8): G06K9/32
CPCG09G5/005G09G2340/0421G09G2340/0414G06T1/60G09G3/28G09G3/36G09G2310/08
Inventor CHOU, YU-PINCHEN, SZU-PING
Owner REALTEK SEMICON CORP