KR19990024914A - Liquid crystal display panel to compensate for luminance unevenness - Google Patents
Liquid crystal display panel to compensate for luminance unevenness Download PDFInfo
- Publication number
- KR19990024914A KR19990024914A KR1019970046298A KR19970046298A KR19990024914A KR 19990024914 A KR19990024914 A KR 19990024914A KR 1019970046298 A KR1019970046298 A KR 1019970046298A KR 19970046298 A KR19970046298 A KR 19970046298A KR 19990024914 A KR19990024914 A KR 19990024914A
- Authority
- KR
- South Korea
- Prior art keywords
- liquid crystal
- crystal display
- group
- display panel
- lines
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
-
- 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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
- G09G3/3666—Control of matrices with row and column drivers using an active matrix with the matrix divided into sections
-
- 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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3674—Details of drivers for scan electrodes
- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
-
- 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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3685—Details of drivers for data electrodes
- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
-
- 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
- G09G2320/0242—Compensation of deficiencies in the appearance of colours
-
- 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
- G09G2320/04—Maintaining the quality of display appearance
Landscapes
- Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Liquid Crystal Display Device Control (AREA)
- Liquid Crystal (AREA)
Abstract
이 발명은 분할 구동 방식의 액정 표시 장치 패널에 있어서 휘도 불균일을 보상하기 위한 액정 표시 장치 패널에 관한 것으로서,The present invention relates to a liquid crystal display panel for compensating for luminance unevenness in a split drive type liquid crystal display panel.
화면을 상측과 하측으로 분할하여 각각 표시할 수 있도록 두 그룹으로 분리되어 데이터 신호를 인가받는 다수의 신호선, 상기 상, 하측 그룹의 신호선과 각각 교차되어 형성되며, 두 그룹으로 분리되어 주사 신호를 인가받는 다수의 주사선, 일정 레벨의 전압을 공급하기 위한 제1 내지 제4 전압원, 상기 제1 전압원과 상기 상측 그룹의 각 신호선 사이에, 상기 제2 전압원과 상기 하측 그룹의 각 신호선 사이에, 상기 제3 전압원과 상기 상측 그룹의 각 주사선 사이에, 그리고 상기 제4 전압원과 상기 하측 그룹의 각 주사선 사이에 연결되어 라인간의 결합 용량을 조절하기 위한 제1 내지 제4 커패시터 그룹을 포함한다.The screen is divided into two groups so that the screen can be divided into upper and lower sides, respectively, and is formed to intersect with a plurality of signal lines to which data signals are applied and signal lines of the upper and lower groups, respectively. A plurality of scan lines, first to fourth voltage sources for supplying a predetermined level of voltage, between the first voltage source and each signal line of the upper group, between the second voltage source and each signal line of the lower group, And a first to fourth capacitor group connected between the three voltage sources and each scan line of the upper group and between the fourth voltage source and each scan line of the lower group to adjust the coupling capacitance between the lines.
Description
이 발명은 액정 표시 장치 패널에 관한 것으로서, 더욱 상세하게는 분할 구동 방식의 액정 표시 장치 패널에 있어서 휘도 불균일을 보상하기 위한 액정 표시 장치 패널에 관한 것이다.BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display panel, and more particularly, to a liquid crystal display panel for compensating for luminance unevenness in a split drive type liquid crystal display panel.
일반적으로 단일 구동 방식의 박막 트랜지스터-액정 표시 장치 패널에는 도 1에서 도시한 바와 같이 화소 데이터 신호를 인가받기 위한 다수의 신호선(D1∼Dn)과 게이트 신호를 인가받기 위한 다수의 주사선(G1∼Gm)이 형성되어 있다. 그리고 일반적으로 노트 컴퓨터에 응용되어 오던 액정 표시 장치의 응용 범위가 넓어짐에 따라 점차 패널의 대형화 및 고정세화가 이루어지고 있다.In general, as shown in FIG. 1, a plurality of signal lines D1 to Dn for applying a pixel data signal and a plurality of scan lines G1 to Gm for receiving a gate signal are applied to a single driving thin film transistor-liquid crystal display panel. ) Is formed. In addition, as the application range of the liquid crystal display device, which has been generally applied to a notebook computer, becomes wider, the size of the panel is gradually increased and the size of the LCD is increased.
그러나, 패널이 대형화됨에 따라 신호선(D1∼Dn) 및 주사선(G1∼Gm)의 길이가 길어지므로 인가되는 신호의 지연 및 왜곡이 발생하게 되고, 이는 화질의 저하를 초래하는 원인이 된다. 또, 해상도가 높아질수록 주사선의 수가 많아지고 1프레임(frame)의 일정 시간 내에 모든 주사선을 구동해야 하기 때문에, 하나의 주사선에 게이트 신호가 인가되는 시간이 매우 감소하게 되며, 이는 화소 데이터 전압이 액정 화소에 충전되는 시간이 감소되는 것을 의미한다. 바로 이러한 이유 때문에, 도 1에서 도시한 바와 같은 단일 구동 방식의 패널 구조에서는 구동 마진(driving margin)이 현저하게 작아지고 고품질의 화면을 얻을 수 없으며 UXGA급(1600×1200×RGB)의 패널에서는 거의 구동이 불가능할 정도가 된다.However, as the panel becomes larger, the lengths of the signal lines D1 to Dn and the scan lines G1 to Gm become longer, which causes delay and distortion of the applied signal, which causes a deterioration in image quality. In addition, as the resolution increases, the number of scan lines increases and all scan lines must be driven within a predetermined time of one frame, so that the time for which the gate signal is applied to one scan line is greatly reduced, which means that the pixel data voltage is a liquid crystal. This means that the time for charging the pixels is reduced. For this reason, the driving margin is remarkably small in a single drive panel structure as shown in FIG. 1, and a high quality screen cannot be obtained, and in UXGA (1600 × 1200 × RGB) panels, almost It becomes impossible to drive.
그러므로 상기와 같은 문제점을 해결하기 위한 방법으로 액정 표시 장치 패널을 분할 구동(dual scan)하는 방법이 사용된다.Therefore, a method of performing a dual scan of the liquid crystal display panel is used as a method for solving the above problems.
도 2는 종래 화면 2분할 구동 방식의 액정 표시 장치 패널을 나타낸 도면으로서, 도 2에서 도시한 바와 같이 화면 2분할 구동 방식의 액정 표시 장치 패널에는 화면을 상측과 하측으로 분할하여 각각 표시할 수 있도록 신호선이 두 그룹(D1∼Dn, D1'∼Dn')으로 분리되어 형성되어 있고, 상측 화면을 표시하기 위한 주사선(G1∼G(m/2))과 하측 화면을 표시하기 위한 주사선(G(m/2+1)∼Gm)이 1프레임의 시간 동안 동시에 구동되기 시작한다.FIG. 2 is a view illustrating a liquid crystal display panel of a conventional two-screen driving method. As shown in FIG. 2, the liquid crystal display panel of the two-screen driving method is divided into upper and lower sides so that the screen can be displayed. The signal lines are divided into two groups D1 to Dn and D1 'to Dn', and the scan lines G1 to G (m / 2) for displaying the upper screen and the scan lines G (for displaying the lower screen) m / 2 + 1) to Gm) start to be driven simultaneously for one frame of time.
이처럼 액정 표시 장치 패널을 분할 구동할 경우, 분할 구동하지 않았을 때보다 신호선의 길이는 1/2로 짧아지고 하나의 주사선에 게이트 신호가 인가되는 시간은 2배로 길어지므로, 신호 왜곡은 감소시키고 화소 충전 특성은 향상시킬 수 있다는 장점이 있다.In this case, when the liquid crystal display panel is dividedly driven, the length of the signal line is 1/2 shorter and the time for which the gate signal is applied to one scan line is twice as long as without the division driving, thereby reducing signal distortion and charging the pixel. The property has the advantage that it can be improved.
그러나, 분할 구동에서의 문제점 중 하나는 화면이 둘로 나누어짐에 따라 도 3에서 도시한 바와 같이 상측 화면과 하측 화면의 경계면에서 미소하게 휘도차가 발생한다는 것이다. 이처럼 상측 화면과 하측 화면의 경계면에서 휘도차가 발생하는 이유는, 상측 화면의 신호선(D1∼Dn)의 끝부분에는 RC 지연으로 인해 어느 정도 왜곡된 화소 데이터 신호가 인가되는 반면 하측 화면의 신호선(D1'∼Dn')의 처음 부분에는 비교적 왜곡되지 않은 화소 데이터 신호가 인가되고, 이러한 상태에서 주사가 단일 구동 방식에서와 같이 연속적으로 이루어지지 않기 때문이다. 그리고 이러한 휘도차가 비록 미소할지는 모르지만 경계선에서 민감하게 검출되어 화질을 저하시킬 수 있다는 문제점이 있다.However, one of the problems in the split driving is that as the screen is divided into two, a slight difference in luminance occurs at the interface between the upper screen and the lower screen as shown in FIG. The reason why the luminance difference occurs at the interface between the upper screen and the lower screen is that the pixel data signal that is somewhat distorted due to the RC delay is applied to the ends of the signal lines D1 to Dn of the upper screen, whereas the signal line D1 of the lower screen is applied. This is because a relatively undistorted pixel data signal is applied to the first portion of '~ Dn', and scanning in this state is not made continuously as in the single driving method. In addition, although the luminance difference may be minute, there is a problem that the image quality may be degraded by being sensitively detected at the boundary line.
따라서 이 발명의 과제는 상기한 문제점을 해결하기 위한 것으로서, 분할 구동 방식의 액정 표시 장치에서 화면의 상측과 하측의 경계 부분에서 나타나는 휘도 차이를 미세하게 조정하여 화질을 개선할 수 있게 하는 액정 표시 장치 패널을 제공하는 데에 있다.Accordingly, an object of the present invention is to solve the above problems, and in a split driving type liquid crystal display device, a liquid crystal display device which can improve image quality by finely adjusting a luminance difference appearing at a boundary between an upper side and a lower side of a screen. To provide a panel.
도 1은 종래 단일 구동(single scan) 방식의 액정 표시 장치 패널을 나타낸 도면,1 is a view illustrating a conventional single scan liquid crystal display panel;
도 2는 종래 분할 구동(dual scan) 방식의 액정 표시 장치 패널을 나타낸 도면,FIG. 2 is a view illustrating a conventional dual scan liquid crystal display panel; FIG.
도 3은 종래 분할 구동 방식의 액정 표시 장치에서 발생하는 화면 경계면의 휘도차를 나타낸 도면,3 is a diagram illustrating a luminance difference between screen boundaries occurring in a conventional split driving liquid crystal display;
도 4는 이 발명의 실시예에 따른 분할 구동 방식의 액정 표시 장치 패널을 나타낸 도면,4 is a view showing a liquid crystal display panel of a split driving method according to an embodiment of the present invention;
도 5는 신호 지연시 화소 전압의 변화를 나타낸 도면이다.5 is a diagram illustrating a change in pixel voltage during signal delay.
상기의 과제를 달성하기 위한 이 발명은,This invention for achieving said subject,
분할 구동 방식의 액정 표시 장치 패널에 있어서,In the liquid crystal display panel of the split drive system,
화면을 상측과 하측으로 분할하여 각각 표시할 수 있도록 두 그룹으로 분리되어 데이터 신호를 인가받는 다수의 신호선,A plurality of signal lines, which are divided into two groups and receive data signals so that the screen can be divided into upper and lower sides, respectively,
상기 상, 하측 그룹의 신호선과 각각 교차되어 형성되며, 두 그룹으로 분리되어 주사 신호를 인가받는 다수의 주사선,A plurality of scan lines which are formed to cross the signal lines of the upper and lower groups, respectively, and are divided into two groups and receive scan signals;
일정 레벨의 전압을 공급하기 위한 제1 내지 제4 전압원,First to fourth voltage sources for supplying a constant level of voltage,
상기 제1 전압원과 상기 상측 그룹의 각 신호선 사이에, 상기 제2 전압원과 상기 하측 그룹의 각 신호선 사이에, 상기 제3 전압원과 상기 상측 그룹의 각 주사선 사이에, 그리고 상기 제4 전압원과 상기 하측 그룹의 각 주사선 사이에 연결되어 라인간의 결합 용량을 조절하기 위한 제1 내지 제4 커패시터 그룹을 포함한다.Between the first voltage source and each signal line of the upper group, between the second voltage source and each signal line of the lower group, between the third voltage source and each scan line of the upper group, and between the fourth voltage source and the lower side And a first to fourth capacitor group connected between each scan line of the group to adjust the coupling capacitance between the lines.
이하, 이 발명이 속하는 기술 분야에서 통상의 지식을 가진 자가 이 발명을 용이하게 실시할 수 있을 정도로 상세히 설명하기 위해 이 발명의 바람직한 실시예를 첨부된 도면을 참조로 설명하기로 한다.DETAILED DESCRIPTION Hereinafter, exemplary embodiments of the present invention will be described with reference to the accompanying drawings so that those skilled in the art can easily implement the present invention.
도 4는 이 발명의 실시예에 따른 화면 2분할 구동 방식의 액정 표시 장치 패널을 나타낸 도면이다.FIG. 4 is a diagram illustrating a liquid crystal display panel of a two screen split driving method according to an exemplary embodiment of the present invention.
도 4에서 도시한 바와 같이, 이 발명의 실시예에 따른 화면 2분할 구동 방식의 액정 표시 장치 패널에서,As shown in FIG. 4, in the liquid crystal display panel of the split screen driving method according to the embodiment of the present invention,
신호선은 패널의 상측과 하측 그룹(D1∼Dn, D1'∼Dn')으로 분리되어 데이터 신호를 인가받고, 주사선(G1∼Gm)은 이 신호선(D1∼Dn, D1'∼Dn')과 교차되어 형성되며, 상측과 하측 그룹(G1∼G(m/2), G(m/2+1)∼Gm)으로 분리되어 게이트 신호를 인가받는다.The signal lines are divided into upper and lower groups D1 to Dn and D1 'to Dn' of the panel to receive a data signal, and the scan lines G1 to Gm intersect the signal lines D1 to Dn and D1 'to Dn'. The gate signal is divided into upper and lower groups G1 to G (m / 2) and G (m / 2 + 1) to Gm.
제1 커패시터 그룹(C1) 내지 제4 커패시터 그룹(C4)은 모두 가변 커패시터로서 라인간의 결합 용량을 미세하게 조절하기 위한 것인데, 제1 커패시터 그룹(C1)은 제1 전압원(V1)과 상측 그룹의 각 신호선(D1∼Dn) 사이에, 제2 커패시터 그룹(C2)은 제2 전압원(V2)과 하측 그룹의 각 신호선(D1'∼Dn') 사이에, 제3 커패시터 그룹(C3)은 제3 전압원(V3)과 상측 그룹의 각 주사선(G1∼G(m/2)) 사이에, 그리고 제4 커패시터 그룹(C4)은 제4 전압원(V4)과 하측 그룹의 각 주사선(G(m/2+1)∼Gm) 사이에 연결되어 있다.The first capacitor group C1 to the fourth capacitor group C4 are all variable capacitors for finely controlling the coupling capacitance between lines, and the first capacitor group C1 is formed of the first voltage source V1 and the upper group. Between each signal line D1 to Dn, the second capacitor group C2 is between the second voltage source V2 and each signal line D1 'to Dn' of the lower group, and the third capacitor group C3 is third Between the voltage source V3 and each scan line G1 to G (m / 2) of the upper group, and the fourth capacitor group C4 is each scan line G (m / 2) of the fourth voltage source V4 and the lower group. It is connected between +1) and Gm).
상기와 같이 구성되어 있는 이 발명에서, 신호선과 주사선에 각각 형성된 가변 커패시터 그룹(C1∼C4)은 외부 단자에 의해 내부 용량이 조절됨으로써 라인간의 전체 결합 용량을 조절할 수 있고, 이에 따라 데이터 신호와 게이트 신호의 지연 정도를 조절하여 화면의 휘도를 패널의 특성에 맞게 제어할 수 있도록 한다.In the present invention configured as described above, the variable capacitor groups C1 to C4 formed on the signal line and the scan line, respectively, can adjust the total coupling capacitance between the lines by adjusting the internal capacitance by external terminals, and thus the data signal and the gate. By adjusting the delay of the signal, the brightness of the screen can be controlled according to the characteristics of the panel.
다시 말해서, 게이트 신호와 데이터 신호의 지연은 화소의 충전율을 감소시키기 때문에 도 5에서 도시한 바와 같이 화소 데이터의 전위(Vp)가 ΔV2만큼 낮아지게 하여 노멀 화이트 모드(normal white mode)시 휘도가 원하는 상태보다 밝아지게 할 수 있다. 또한, 게이트 신호의 지연은 킥백 전압(kickback voltage)의 크기를 조절함으로써 화소 데이터의 전위(Vp)가 ΔV1만큼 높아지게 하여 노멀 화이트 모드시 휘도가 원하는 상태보다 어두워지게 할 수도 있다.In other words, since the delay of the gate signal and the data signal reduces the charge rate of the pixel, as shown in FIG. 5, the potential Vp of the pixel data is lowered by ΔV 2 so that the luminance is desired in the normal white mode. It can make it brighter than the state. In addition, the delay of the gate signal may increase the potential Vp of the pixel data by ΔV1 by controlling the magnitude of the kickback voltage so that the luminance becomes darker than the desired state in the normal white mode.
그러므로, 가변 커패시터를 이용하여 상측 또는 하측 화면을 표시하기 위한 게이트 신호와 데이터 신호를 적절하게 지연시킴으로써 상, 하측 화면의 휘도 불균일을 보상할 수 있고, 특히 상측 화면과 하측 화면의 경계면에서 휘도차에 의해 나타나는 희미한 경계선을 제거할 수 있다.Therefore, by appropriately delaying the gate signal and the data signal for displaying the upper or lower screen by using a variable capacitor, it is possible to compensate for the luminance unevenness of the upper and lower screens, and in particular to the luminance difference at the interface between the upper and lower screens. You can remove the faint borders that appear.
따라서 이 발명의 효과는 분할 구동 방식의 액정 표시 장치에서 2분할 화면의 휘도 불균일을 조절하여 화질을 개선할 수 있다는 것이다.Therefore, the effect of the present invention is that the image quality can be improved by adjusting the luminance unevenness of the two-split screen in the split-drive type liquid crystal display.
Claims (2)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970046298A KR100508030B1 (en) | 1997-09-09 | 1997-09-09 | LCD Display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| KR1019970046298A KR100508030B1 (en) | 1997-09-09 | 1997-09-09 | LCD Display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| KR19990024914A true KR19990024914A (en) | 1999-04-06 |
| KR100508030B1 KR100508030B1 (en) | 2005-10-26 |
Family
ID=37305586
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| KR1019970046298A Expired - Fee Related KR100508030B1 (en) | 1997-09-09 | 1997-09-09 | LCD Display |
Country Status (1)
| Country | Link |
|---|---|
| KR (1) | KR100508030B1 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100490765B1 (en) * | 1999-12-10 | 2005-05-19 | 세이코 엡슨 가부시키가이샤 | Driving method for electro-optical device, image processing circuit, electro-optical device, and electronic equipment |
| KR100472499B1 (en) * | 1998-05-28 | 2005-06-08 | 삼성에스디아이 주식회사 | Driving Method of Flat Panel |
| KR100859472B1 (en) * | 2002-06-29 | 2008-09-23 | 엘지디스플레이 주식회사 | Liquid crystal display |
Family Cites Families (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0580714A (en) * | 1991-09-18 | 1993-04-02 | Fujitsu Ltd | Liquid crystal display drive circuit |
| JP2728582B2 (en) * | 1991-11-13 | 1998-03-18 | シャープ株式会社 | Driving method of EL display device |
| JPH07271327A (en) * | 1994-03-30 | 1995-10-20 | Nippondenso Co Ltd | Driving circuit for el display device |
| JP3953544B2 (en) * | 1996-03-25 | 2007-08-08 | 株式会社デンソー | EL display device |
-
1997
- 1997-09-09 KR KR1019970046298A patent/KR100508030B1/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR100472499B1 (en) * | 1998-05-28 | 2005-06-08 | 삼성에스디아이 주식회사 | Driving Method of Flat Panel |
| KR100490765B1 (en) * | 1999-12-10 | 2005-05-19 | 세이코 엡슨 가부시키가이샤 | Driving method for electro-optical device, image processing circuit, electro-optical device, and electronic equipment |
| KR100859472B1 (en) * | 2002-06-29 | 2008-09-23 | 엘지디스플레이 주식회사 | Liquid crystal display |
Also Published As
| Publication number | Publication date |
|---|---|
| KR100508030B1 (en) | 2005-10-26 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| KR100485557B1 (en) | Display device | |
| US5640174A (en) | Method of driving an active matrix liquid crystal display panel with asymmetric signals | |
| US6552705B1 (en) | Method of driving flat-panel display device | |
| US5995074A (en) | Driving method of liquid crystal display device | |
| US12087247B2 (en) | Driving method of display panel, display panel, and display device driven by driving modes having different frequencies | |
| US8207921B2 (en) | Liquid crystal display panel and driving method for liquid crystal display panel | |
| KR100430100B1 (en) | Driving Method of Liquid Crystal Display | |
| JP3450164B2 (en) | Dot matrix display | |
| KR100440360B1 (en) | LCD and its driving method | |
| KR100366933B1 (en) | Liquid crystal display device, and method for driving the same | |
| JP2003295157A (en) | Liquid crystal display | |
| JP2001125069A (en) | Liquid crystal display | |
| KR100508030B1 (en) | LCD Display | |
| CN117524166B (en) | Display panel and display device | |
| US6864868B2 (en) | Control device of a liquid crystal display device | |
| KR20020056093A (en) | Circuit driving Gate of Liquid Crystal display | |
| KR100687325B1 (en) | Vertical Crosstalk Compensation Method of LCD | |
| KR101604481B1 (en) | Liquid crystal display | |
| JP2000259130A (en) | Liquid crystal display device and its driving method | |
| KR100878235B1 (en) | LCD and its driving method | |
| KR100716481B1 (en) | Adjusting method of image signal, adjusting circuit, electro-optical device, and electronic apparatus | |
| JPH06295164A (en) | Liquid crystal display device | |
| JPH04140716A (en) | Liquid crystal display device | |
| KR100783709B1 (en) | Liquid crystal display for compensating kickback voltage and driving method thereof | |
| US8253674B2 (en) | Drive method for liquid crystal display device and liquid crystal display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PA0109 | Patent application |
St.27 status event code: A-0-1-A10-A12-nap-PA0109 |
|
| R17-X000 | Change to representative recorded |
St.27 status event code: A-3-3-R10-R17-oth-X000 |
|
| R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-3-3-R10-R18-oth-X000 |
|
| PN2301 | Change of applicant |
St.27 status event code: A-3-3-R10-R13-asn-PN2301 St.27 status event code: A-3-3-R10-R11-asn-PN2301 |
|
| PG1501 | Laying open of application |
St.27 status event code: A-1-1-Q10-Q12-nap-PG1501 |
|
| PN2301 | Change of applicant |
St.27 status event code: A-3-3-R10-R13-asn-PN2301 St.27 status event code: A-3-3-R10-R11-asn-PN2301 |
|
| R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-3-3-R10-R18-oth-X000 |
|
| R17-X000 | Change to representative recorded |
St.27 status event code: A-3-3-R10-R17-oth-X000 |
|
| PN2301 | Change of applicant |
St.27 status event code: A-3-3-R10-R13-asn-PN2301 St.27 status event code: A-3-3-R10-R11-asn-PN2301 |
|
| A201 | Request for examination | ||
| P11-X000 | Amendment of application requested |
St.27 status event code: A-2-2-P10-P11-nap-X000 |
|
| P13-X000 | Application amended |
St.27 status event code: A-2-2-P10-P13-nap-X000 |
|
| PA0201 | Request for examination |
St.27 status event code: A-1-2-D10-D11-exm-PA0201 |
|
| R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-3-3-R10-R18-oth-X000 |
|
| R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-3-3-R10-R18-oth-X000 |
|
| R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-3-3-R10-R18-oth-X000 |
|
| D13-X000 | Search requested |
St.27 status event code: A-1-2-D10-D13-srh-X000 |
|
| D14-X000 | Search report completed |
St.27 status event code: A-1-2-D10-D14-srh-X000 |
|
| E902 | Notification of reason for refusal | ||
| PE0902 | Notice of grounds for rejection |
St.27 status event code: A-1-2-D10-D21-exm-PE0902 |
|
| P11-X000 | Amendment of application requested |
St.27 status event code: A-2-2-P10-P11-nap-X000 |
|
| P13-X000 | Application amended |
St.27 status event code: A-2-2-P10-P13-nap-X000 |
|
| E701 | Decision to grant or registration of patent right | ||
| PE0701 | Decision of registration |
St.27 status event code: A-1-2-D10-D22-exm-PE0701 |
|
| PN2301 | Change of applicant |
St.27 status event code: A-3-3-R10-R13-asn-PN2301 St.27 status event code: A-3-3-R10-R11-asn-PN2301 |
|
| PN2301 | Change of applicant |
St.27 status event code: A-3-3-R10-R13-asn-PN2301 St.27 status event code: A-3-3-R10-R11-asn-PN2301 |
|
| GRNT | Written decision to grant | ||
| PR0701 | Registration of establishment |
St.27 status event code: A-2-4-F10-F11-exm-PR0701 |
|
| PR1002 | Payment of registration fee |
St.27 status event code: A-2-2-U10-U11-oth-PR1002 Fee payment year number: 1 |
|
| PG1601 | Publication of registration |
St.27 status event code: A-4-4-Q10-Q13-nap-PG1601 |
|
| R17-X000 | Change to representative recorded |
St.27 status event code: A-5-5-R10-R17-oth-X000 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 4 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 5 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 6 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 7 |
|
| R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
| FPAY | Annual fee payment |
Payment date: 20120713 Year of fee payment: 8 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 8 |
|
| PN2301 | Change of applicant |
St.27 status event code: A-5-5-R10-R11-asn-PN2301 |
|
| PN2301 | Change of applicant |
St.27 status event code: A-5-5-R10-R14-asn-PN2301 |
|
| FPAY | Annual fee payment |
Payment date: 20130731 Year of fee payment: 9 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 9 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 10 |
|
| PR1001 | Payment of annual fee |
St.27 status event code: A-4-4-U10-U11-oth-PR1001 Fee payment year number: 11 |
|
| R18-X000 | Changes to party contact information recorded |
St.27 status event code: A-5-5-R10-R18-oth-X000 |
|
| LAPS | Lapse due to unpaid annual fee | ||
| PC1903 | Unpaid annual fee |
St.27 status event code: A-4-4-U10-U13-oth-PC1903 Not in force date: 20160805 Payment event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE |
|
| P22-X000 | Classification modified |
St.27 status event code: A-4-4-P10-P22-nap-X000 |
|
| PC1903 | Unpaid annual fee |
St.27 status event code: N-4-6-H10-H13-oth-PC1903 Ip right cessation event data comment text: Termination Category : DEFAULT_OF_REGISTRATION_FEE Not in force date: 20160805 |