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Display apparatus and control method of picture thereof

A display device and image control technology, applied in image communication, TV, color TV components, etc., can solve the problem of inconvenient display devices

Inactive Publication Date: 2005-02-02
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] As mentioned above, conventional display devices are not suitable because if the currently displayed channel and / or content is changed, or if a DVD player or VTR is used, the user must readjust the contrast or brightness to optimize the display settings. convenient

Method used

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  • Display apparatus and control method of picture thereof
  • Display apparatus and control method of picture thereof
  • Display apparatus and control method of picture thereof

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Embodiment Construction

[0043] Embodiments of the invention will now be described in detail with reference to examples shown in the drawings, wherein like reference numerals indicate like elements. The embodiments are described below in order to explain the present invention by referring to the figures.

[0044] Such as figure 2 and image 3 As shown, the display device according to the present invention includes a signal conversion part 11 for converting an analog video signal into a digital video signal and sending the digital video signal; a scaler 12 for converting the digital video signal sent by the signal conversion part 11 and output the scaled digital video signal; the frame buffer 15 is used to temporarily store the scaled digital video signal sent by the signal converting section 11; the panel driving section 13 is used to transmit the scaled digital video signal based on the scaler 12 The driving display part 14; the control part 10 for controlling the signal conversion part 11, the sc...

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Abstract

An apparatus for and a method of continuously adjusting a brightness and a contrast of a video display. An analog video signal is converted to provide digital luminance (Y) signals and amplitudes of the digital Y signals are adjusted based on determining whether the digital Y signals of a frame have amplitudes corresponding to one or more of four regions of digital values. The four regions include a highest region, a second highest region, a lowest region and a second lowest region. Contrast is adjusted based on whether digital Y values of the frame are included for the highest region and / or the second highest region and brightness is adjusted based on whether digital Y values are included for the lowest region and / or the second lowest region.

Description

[0001] Cross References to Related Applications [0002] This application claims the benefit of Korean Patent Application No. 2003-36305 filed with the Korean Intellectual Property Office on Jun. 5, 2003, which is hereby incorporated by reference. technical field [0003] The present invention relates to a display device and a method for controlling images of the display device, more particularly, to a display device and method for automatically controlling the brightness and contrast of a display screen based on a luminance signal (eg, a Y signal). Background technique [0004] Generally, a display device such as a television decodes a broadcast signal from a broadcaster into a video signal to provide image information to viewers. [0005] External video signal devices such as video tape recorders (VTR) and digital video discs (DVD) are also used to send video signals for display devices. This display device receives a video signal including a Y signal a...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/57
CPCH04N5/57
Inventor 康虎雄
Owner SAMSUNG ELECTRONICS CO LTD