KR20080067235A - Motion blur prevention device for lcd television - Google Patents

Motion blur prevention device for lcd television Download PDF

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Publication number
KR20080067235A
KR20080067235A KR1020070004518A KR20070004518A KR20080067235A KR 20080067235 A KR20080067235 A KR 20080067235A KR 1020070004518 A KR1020070004518 A KR 1020070004518A KR 20070004518 A KR20070004518 A KR 20070004518A KR 20080067235 A KR20080067235 A KR 20080067235A
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panel
sensor
viewer
distance
microcomputer
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KR1020070004518A
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Korean (ko)
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유미라
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주식회사 대우일렉트로닉스
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Priority to KR1020070004518A priority Critical patent/KR20080067235A/en
Publication of KR20080067235A publication Critical patent/KR20080067235A/en

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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/88—Lidar systems specially adapted for specific applications
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0261—Improving the quality of display appearance in the context of movement of objects on the screen or movement of the observer relative to the screen
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/06—Adjustment of display parameters
    • G09G2320/0626—Adjustment of display parameters for control of overall brightness

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  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • Electromagnetism (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Transforming Electric Information Into Light Information (AREA)

Abstract

A motion blur prevention device for an LCD(Liquid Crystal Display) television is provided to sense distance between a viewer and a panel and to display over driving degrees on the panel to obtain the clean picture quality regardless of a position of the viewer. A motion blur prevention device for television comprises a sensor(2), a microcomputer(3), and a panel driving part(5). The sensor detects the distance between a viewer and a panel(1). The microcomputer accesses driving data to a memory(4) and outputs a driving control signal. The panel driving part differentiates over driving degrees and displays the over driving degrees on the panel when playing a video having rapid motion according to the driving control signal of the microcomputer. The sensor is an infrared ray sensor.

Description

엘씨디 텔레비전의 이동 흐림 방지장치{Motion blur prevention device for LCD television}Motion blur prevention device for LCD television

도 1은 본 발명 엘씨디 텔레비전의 이동 흐림 방지장치의 바람직한 실시예에 따른 구성도이다.1 is a block diagram according to a preferred embodiment of the present invention for preventing motion blur of an LCD television.

*도면의 주요 부분에 대한 부호의 설명** Description of the symbols for the main parts of the drawings *

1:패널 2:적외선 센서1: Panel 2: Infrared sensor

3:마이크로 컴퓨터 4:메모리3: micro computer 4: memory

5:패널 구동부5: Panel drive part

본 발명은 엘씨디 텔레비전의 이동 흐림 방지장치에 관한 것으로, 특히 시청자와 엘씨디 텔레비전의 거리에 따라 오버 드라이빙의 정도를 결정하여 이동 흐림 현상을 방지할 수 있는 엘씨디 텔레비전의 이동 흐림 방지장치에 관한 것이다.The present invention relates to an apparatus for preventing motion blur of an LCD television, and more particularly, to an apparatus for preventing movement blur of an LCD television, by determining the degree of overdriving according to a distance between a viewer and an LCD television.

일반적으로, 엘씨디 텔레비전은 동영상을 재생할 때 빠른 움직임에 대해서는 처리속도가 다소 늦어 이동 흐림(motion blur)이라는 더디게 영상이 움직이는 듯한 현상이 발생한다.In general, an LCD TV has a slow processing speed for a fast motion when a video is played back, and thus a motion blur occurs as a motion blur.

이를 방지하기 위해 종래에는 입력이 변화되는 변화량을 측정하여 이를 다음에 입력되는 영상의 출력에 반영하는 오버 드라이빙(over driving)을 통해 움직임을 보다 빠르게 하였다.In order to prevent this, conventionally, the movement is made faster by overdriving by measuring the amount of change in which the input is changed and reflecting it on the output of the next input image.

그러나, 이와 같은 종래의 방법은 이동 흐림이 움직이는 형상의 외곽 두께의 영향을 받아 느껴지는 것이므로, 시청하는 시청자의 위치에 따라 민감하게 반응하는 것이나, 이와 같은 시청자의 위치를 감안하지 않고 일률적인 제어에 의해 처리되었다.However, such a conventional method is that the motion blur is felt under the influence of the outer thickness of the moving shape, so it reacts sensitively according to the position of the viewer watching, or by uniform control without considering the position of the viewer. Was processed.

즉, 패널에 가까이 있는 사람에게는 외곽이 두껍게 보여 이동 흐림이 커지며, 멀리 있는 사람에게는 얇게 보여 이동 흐림이 상대적으로 낮게 인지되나, 종래 에는 이와 같은 시청자의 거리와 관계없이 오버드라이빙 처리를 수행하기 때문에 역시 시청자의 위치에 따라 화질이 열화되는 문제점이 있었다.In other words, the outside of the panel is thicker to the person near the panel, the larger the blur, and the farther it is thinner to see the blur is relatively low. There was a problem in that the image quality is deteriorated according to the position of the viewer.

상기와 같은 문제점을 감안한 본 발명은 시청자의 위치에 따른 오버 드라이빙을 통해 가장 적당한 화질을 제공할 수 있는 엘씨디 텔레비전의 이동 흐림 방지장치를 제공함에 그 목적이 있다.In view of the above problems, an object of the present invention is to provide an apparatus for preventing movement blur of an LCD television, which can provide the most suitable picture quality through overdriving according to a viewer's position.

상기와 같은 목적을 달성하기 위한 본 발명은 시청자와 패널 사이의 거리를 감지하는 센서와, 상기 센서에서 검출한 거리에 따른 드라이빙 데이터를 메모리에서 억세스하여, 그에 따른 드라이빙 제어신호를 출력하는 마이크로 컴퓨터와, 상기 마이크로 컴퓨터의 드라이빙 제어신호에 따라 빠른 움직임이 있는 동영상의 재생시 오버 드라이빙의 정도를 다르게 하여 상기 패널에 표시하는 패널 구동부를 포함한다.The present invention for achieving the above object is a sensor for sensing the distance between the viewer and the panel, a microcomputer to access the driving data according to the distance detected by the sensor in the memory, and outputs a driving control signal accordingly; And a panel driver for displaying on the panel a different degree of overdriving upon reproducing a moving video with fast movement according to the driving control signal of the microcomputer.

이하, 첨부된 도면을 참조하여 본 발명에 따른 바람직한 실시예를 상세하게 설명하기로 한다. 그러나 이하의 실시예는 이 기술 분야에서 통상적인 지식을 가진 자에게 본 발명이 충분히 이해되도록 제공되는 것으로서 여러 가지 다른 형태로 변형될 수 있으며, 본 발명의 범위가 다음에 기술되는 실시예에 의해 한정되는 것은 아니다. 도면상에서 동일 부호는 동일한 요소를 지칭한다. Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the following embodiments are provided to those skilled in the art to fully understand the present invention, and may be modified in various forms, and the scope of the present invention is limited by the embodiments described below. It doesn't happen. Like numbers refer to like elements in the figures.

도 1은 본 발명 엘씨디 텔레비전의 이동 흐림 방지장치의 바람직한 실시예에 따른 구성도이다.1 is a block diagram according to a preferred embodiment of the present invention for preventing motion blur of an LCD television.

도 1을 참조하면, 본 발명 엘씨디 텔레비전의 이동 흐림 방지장치는 시청자와 패널(1) 사이의 거리를 감지하는 적외선 센서(2)와, 상기 적외선 센서(2)에서 검출한 거리에 따른 드라이빙 데이터를 메모리(4)에서 억세스하여, 그에 따른 드라이빙 제어신호를 출력하는 마이크로 컴퓨터(3)와, 상기 마이크로 컴퓨터(3)의 드라이빙 제어신호에 따라 빠른 움직임이 있는 동영상의 재생시 오버 드라이빙의 정도를 다르게 하여 상기 패널(1)에 표시하는 패널 구동부(5)를 포함한다.Referring to FIG. 1, an apparatus for preventing movement blur of an LCD TV according to the present invention may include an infrared sensor 2 detecting a distance between a viewer and a panel 1 and driving data according to the distance detected by the infrared sensor 2. In accordance with the microcomputer 3 which is accessed from the memory 4 and outputs a driving control signal according to the driving control signal of the microcomputer 3, the degree of overdriving during the reproduction of a moving video with fast movement is varied. And a panel driver 5 displayed on the panel 1.

이하, 상기와 같이 구성된 본 발명 텔레비전의 이동 흐림 방지장치의 구성과 작용을 보다 상세히 설명한다.Hereinafter, the configuration and operation of the apparatus for preventing movement blur of the present invention television configured as described above will be described in more detail.

먼저, 적외선 센서(2)는 시청자의 위치를 감지하여 그 정보를 마이크로 컴퓨터(3)로 전달한다.First, the infrared sensor 2 detects the viewer's position and transmits the information to the microcomputer 3.

상기 마이크로 컴퓨터(3)는 상기 적외선 센서(2)에서 검출된 시청자와 패널(1) 사이의 거리에 대한 오버 드라이빙 데이터를 메모리(4)에서 억세스한다.The microcomputer 3 accesses in the memory 4 overdriving data for the distance between the viewer and the panel 1 detected by the infrared sensor 2.

상기 메모리(4)에는 시청자와 패널(1) 사이의 거리에 따른 오버 드라이빙 데이터의 룩업테이블(look up table)이 저장되어 있으며, 그 시청자와 패널(1) 사이 의 거리가 짧을수록 더 큰 정도의 오버 드라이빙이 가능하도록 데이터가 저장된다.The memory 4 stores a look up table of overdriving data according to the distance between the viewer and the panel 1, and the shorter the distance between the viewer and the panel 1 is, Data is stored to allow overdriving.

상기 마이크로 컴퓨터(3)는 상기 메모리(4)에 저장된 시청자와의 거리에 따른 오버 드라이빙 데이터를 추출하여, 그 값에 적당한 드라이빙 제어신호를 출력한다.The microcomputer 3 extracts the overdriving data according to the distance from the viewer stored in the memory 4, and outputs a driving control signal suitable for the value.

이때, 영상신호가 입력될 때 그 영상신호의 변화 정도를 검출한 마이크로 컴퓨터(3)에서 오버 드라이빙이 필요하다고 판단하면, 상기 패널 구동부(5)가 오버 드라이빙 하도록 제어하며, 그 제어시 오버 드라이빙의 정도는 상기 메모리(4)의 룩업테이블을 참조하게 된다.At this time, when the microcomputer 3 that detects the degree of change of the video signal is determined that overdriving is necessary when the video signal is input, the panel driver 5 controls the overdriving to perform overdriving. The degree refers to the lookup table of the memory 4.

이와 같은 구성으로 본 발명은 시청자와 패널(1)의 거리에 따른 오버 드라이빙이 가능하여, 시청자에게 보다 우수한 화질의 영상을 제공할 수 있게 된다.In such a configuration, the present invention enables overdriving according to the distance between the viewer and the panel 1, thereby providing a viewer with a better image quality.

상기 시청자와의 거리는 1m 이하, 1~2m, 2m 이상 등으로 구분하여 검출할 수 있으며, 그 구분에 따라 적당한 오버 드라이빙 데이터를 선택하여 오버 드라이빙 함으로써, 시청자의 위치에 무관하게 적당한 이동 흐림 현상을 방지할 수 있게 된다. The distance to the viewer can be detected by dividing the distance into 1m or less, 1 ~ 2m, 2m or more, and selecting appropriate overdriving data according to the classification to overdriving, thereby preventing proper moving blur regardless of the viewer's position. You can do it.

상기한 바와 같이 본 발명 엘씨디 텔레비전의 이동 흐림 방지장치는 엘씨디 텔레비전과 시청자의 거리에 따라 적당한 정도의 오버 드라빙을 통해 이동 흐림 현상을 방지함으로써, 시청자의 위치에 관계없이 보다 개선된 화질의 영상을 제공할 수 있는 효과가 있다.As described above, the apparatus for preventing motion blur of an LCD TV according to the present invention prevents motion blur through an appropriate amount of overdriving according to the distance between the LCD TV and the viewer, thereby improving image quality of the image regardless of the viewer's position. There is an effect that can be provided.

Claims (4)

시청자와 패널 사이의 거리를 감지하는 센서;A sensor for sensing a distance between the viewer and the panel; 상기 센서에서 검출한 거리에 따른 드라이빙 데이터를 메모리에서 억세스하여, 그에 따른 드라이빙 제어신호를 출력하는 마이크로 컴퓨터;A microcomputer accessing driving data according to the distance detected by the sensor from a memory and outputting a driving control signal according thereto; 상기 마이크로 컴퓨터의 드라이빙 제어신호에 따라 빠른 움직임이 있는 동영상의 재생시 오버 드라이빙의 정도를 다르게 하여 상기 패널에 표시하는 패널 구동부를 포함하여 된 것을 특징으로 하는 텔레비전의 이동 흐림 방지장치.And a panel driver for displaying on the panel a different degree of overdriving during playback of a moving video with a fast movement according to the driving control signal of the microcomputer. 제1항에 있어서, The method of claim 1, 상기 센서는,The sensor, 적외선 센서인 것을 특징으로 하는 텔레비전의 이동 흐림 방지장치.Moving blur prevention device of a television, characterized in that the infrared sensor. 제1항에 있어서, The method of claim 1, 상기 센서에서 검출되는 사용자와 패널 사이의 거리는 특정한 기준에 따라 다단계의 범위로 인식되며, 그 다단계의 범위마다 적당한 오버 드라이빙 데이터가 상기 메모리에 저장되는 것을 특징으로 하는 텔레비전의 이동 흐림 방지장치.The distance between the user and the panel detected by the sensor is recognized as a range of multi-step according to a specific criterion, and the appropriate overdriving data is stored in the memory for each range of the multi-step. 제3항에 있어서,The method of claim 3, 상기 오버 드라이빙 데이터는 상기 사용자와 패널 사이의 거리가 가까울수록 그 값이 더 큰 것을 특징으로 하는 텔레비전의 이동 흐림 방지장치.And the overdriving data has a larger value as the distance between the user and the panel gets closer.
KR1020070004518A 2007-01-15 2007-01-15 Motion blur prevention device for lcd television KR20080067235A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107301852A (en) * 2017-08-24 2017-10-27 惠科股份有限公司 Driving device and method of display panel and display device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107301852A (en) * 2017-08-24 2017-10-27 惠科股份有限公司 Driving device and method of display panel and display device
WO2019037347A1 (en) * 2017-08-24 2019-02-28 惠科股份有限公司 Drive device and drive method for display panel, and display device

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