Display apparatus and control method thereof

A technology for display devices, time-sharing methods, applied in static indicators, image data processing, television, etc., and can solve problems such as false contours and motion blur

Inactive Publication Date: 2007-02-21
SAMSUNG ELECTRONICS CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The human eye perceives the amount of light of subfields rearranged along the motion direction and the amount of light of subfields that are not rearranged in a still frame, so that false contours and motion blur of moving pictures are not reduced

Method used

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  • Display apparatus and control method thereof
  • Display apparatus and control method thereof
  • Display apparatus and control method thereof

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Embodiment Construction

[0036] The matters defined in this specification, such as detailed structures and components, are provided to help comprehensive understanding of the embodiments of the present invention. Accordingly, those of ordinary skill in the art will recognize that various changes and modifications of the embodiments described herein can be made without departing from the scope and spirit of the invention. Also, descriptions of well-known functions and constructions are omitted for clarity and conciseness.

[0037] Such as Figure 5 As shown, the display device according to the exemplary embodiment of the present invention includes a mode determiner 20 , a motion vector calculator 30 , a motion compensation luminance calculator 40 , a total luminance calculator 50 and an emission mode selector 60 . In addition, the display device according to the exemplary embodiment of the present invention includes a signal receiver 10 , a display driver 70 and a display unit 80 .

[0038] The mode ...

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Abstract

A display apparatus and a control method which can effectively remove a false contour and a motion blur from a moving picture when an image includes a repetitive pattern of a frame are provided. A display apparatus comprises a pattern determiner to determine a frame pattern of the input image, a motion vector calculator to calculate a motion vector on the basis of a first frame corresponding to a first presented frame among the frames of a repetitive pattern, and a second frame corresponding to an image that is different from the frames of the repetitive pattern after the repetitive pattern is generated, when the input image includes the repetitive pattern, a motion compensating brightness calculator to calculate motion compensating brightness at the beginning of each subfield according to the motion vector, an integral brightness calculator to calculate integral brightness of the quantity of light emitted in the subfield for a predetermined period of time along the motion vector, and an emission pattern selector to select whether light is emitted in the subfield on the basis of the motion compensating brightness and the integral brightness.

Description

[0001] This application claims the benefit of Korean Patent Application No. 2005-0074977 filed with the Korean Intellectual Property Office on Aug. 16, 2005, the entire disclosure of which is hereby incorporated by reference. technical field [0002] The invention relates to a display device and a control method thereof. More particularly, the present invention relates to a display device capable of expressing gradation of an input image by using a time-division method of subfields and a control method thereof. Background technique [0003] Such as figure 1 As shown, the subfields usually form one frame of the input image. Here, the weights of the subfields are different, and the luminance in one frame period changes depending on whether or not light is emitted in each subfield. [0004] Display devices that use a time-sharing method to express gray scales may encounter problems such as false contours that may occur when disp...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H04N5/57
CPCG06T2207/20201G06T7/20G09G2320/0266H04N7/0115G06T5/003G06T5/50G06T5/002G09G2320/106G09G2340/0435G09G3/2022G09G2320/0261G09G3/20G09G3/34G09G3/296
Inventor 成和锡闵钟述
Owner SAMSUNG ELECTRONICS CO LTD
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