WO2015131410A1 - 液晶显示面板及主动快门式3d液晶显示装置 - Google Patents

液晶显示面板及主动快门式3d液晶显示装置 Download PDF

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Publication number
WO2015131410A1
WO2015131410A1 PCT/CN2014/073197 CN2014073197W WO2015131410A1 WO 2015131410 A1 WO2015131410 A1 WO 2015131410A1 CN 2014073197 W CN2014073197 W CN 2014073197W WO 2015131410 A1 WO2015131410 A1 WO 2015131410A1
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Prior art keywords
liquid crystal
crystal display
frame
display panel
pixel
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PCT/CN2014/073197
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English (en)
French (fr)
Inventor
方斌
杨智名
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深圳市华星光电技术有限公司
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Priority to US14/360,631 priority Critical patent/US20160005366A1/en
Publication of WO2015131410A1 publication Critical patent/WO2015131410A1/zh

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    • 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
    • G09G3/3614—Control of polarity reversal in general
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/136286—Wiring, e.g. gate line, drain line
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
    • G02F1/1362—Active matrix addressed cells
    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
    • 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
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
    • G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections
    • 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
    • G09G2320/0209—Crosstalk reduction, i.e. to reduce direct or indirect influences of signals directed to a certain pixel of the displayed image on other pixels of said image, inclusive of influences affecting pixels in different frames or fields or sub-images which constitute a same image, e.g. left and right images of a stereoscopic display
    • 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

Definitions

  • the present invention relates to the field of liquid crystal technology, and in particular to a liquid crystal display panel and an active shutter type 3D liquid crystal display device.
  • Active Shutter 3D (Active Shutter 3D) Display technology achieves 3D display through a high refresh rate LCD display with 3D shutter glasses.
  • the lens of the 3D shutter glasses is substantially two liquid crystal screens that can respectively control the switch.
  • the liquid crystal layer has two states of black and white. When the light is off, the lens is white or transparent, and the lens turns black when the power is on. .
  • the left eye picture signal of the liquid crystal display can be received through one liquid crystal screen, and the other liquid crystal screen receives the right eye picture signal of the liquid crystal display, and the liquid crystal display transmits a synchronization signal through the signal transmitting device, so that the liquid crystal screen of the 3D shutter glasses is switched and the liquid crystal display is Accurate synchronization between left and right eye screen switching.
  • the liquid crystal molecules have such a characteristic that if the direction of the electric field applied to both ends of the liquid crystal layer remains unchanged for a long time, the characteristics of the liquid crystal molecules are destroyed, that is, it is no longer possible to rotate in response to the change of the electric field, thereby forming different gray scales. . Therefore, it is necessary to change the direction of the electric field at regular intervals so that the liquid crystal molecules are reversed, thereby preventing the characteristics of the liquid crystal molecules from being destroyed.
  • driving methods to achieve liquid crystal molecules inversion polarity reversal
  • driving methods to achieve liquid crystal molecules inversion such as dot inversion (dot Inversion) driver method, frame inversion driver method, column inversion driver method, and row inversion (row Inversion) driver method.
  • the data signal transmitted on the data line can be divided into a positive polarity data signal (+) having a voltage higher than the common voltage Vcom and a negative polarity data signal having a voltage lower than the common voltage Vcom.
  • (+) having a voltage higher than the common voltage Vcom
  • a negative polarity data signal having a voltage lower than the common voltage Vcom.
  • the pixel polarity of the liquid crystal display is as shown in FIG. 1, and the 01 picture frame to the 04 picture frame in FIG. 1 is a continuous four frame display picture frame. Since the odd frame picture of the general liquid crystal display is used to display the left eye picture (or the right eye picture), the even frame picture is used to display the right eye picture (or the left eye picture), for example, the picture signal of the liquid crystal display is high gray for the left eye signal.
  • the order signal (such as white signal), the right eye signal is a low gray level signal (such as black signal), then the upper left positive pixel of the 01 picture in Fig. 1 (the pixel showing the positive polarity data signal) appears for display high.
  • the gray scale signal, the upper left negative pixel of the 02 picture (the pixel displaying the negative polarity data signal) is used to display the low gray level signal, and the upper left positive polarity pixel of the 03 picture is used to display the high gray level signal. Due to the low gray scale signal, both the positive polarity data signal and the negative polarity data signal will be close to the common voltage Vcom; while the high gray scale signal, both the positive polarity data signal and the negative polarity data signal will be far away from the common voltage Vcom. In this way, the pixels of the liquid crystal display are always positive pixels (displaying a positive data signal) or always negative pixels (displaying a negative data signal), and the liquid crystal display is prone to image sticking (image) Sticking).
  • the pixel polarity of the liquid crystal display is as shown in FIG. 2, and the 01 picture frame to the 04 picture frame in FIG. 2 is a continuous four frame display picture. frame.
  • the picture signal of the liquid crystal display is a high gray level signal and the right eye signal is a low gray level signal, the upper left positive pixel of the 01 picture in FIG.
  • each pixel of the liquid crystal display not only displays a high-gradation signal of a positive polarity but also a high-gradation signal of a negative polarity, thereby avoiding the occurrence of image sticking.
  • the 02 picture and the 04 picture of FIG. 2 are generally right-eye pictures
  • the 01 picture and the 03 picture of FIG. 2 are generally left-eye pictures
  • the 01 picture and the 02 picture are data signals of the same polarity.
  • the liquid crystal display displays the data signal, it is necessary to redistribute the charge in the pixel, which will result in higher brightness of the redistributed pixel, thereby causing the brightness of the 02 picture to be higher than the brightness of the 01 picture; similarly, The brightness of the 04 picture is higher than the brightness of the 03 picture, that is, the brightness of the right eye picture is higher than the brightness of the left eye picture. This will cause the liquid crystal display to easily cause 3D ghosting and affect the display quality of the liquid crystal display.
  • An object of the present invention is to provide a liquid crystal display panel and an active shutter type 3D liquid crystal display device which are less prone to image sticking and 3D ghosting, so as to solve the problem that the existing liquid crystal display panel is prone to image sticking and 3D ghosting. technical problem.
  • the present invention provides a liquid crystal display panel comprising a plurality of data lines parallel to each other and a plurality of scanning lines parallel to each other, wherein the plurality of data lines and the plurality of scanning lines are vertically arranged to intersect each other, the plurality of data lines And intersecting the plurality of scan lines to form a plurality of pixel units, wherein
  • each of the picture frame groups includes a non-changing frame and a change frame, and when the liquid crystal display panel displays the non-changing frame, the pixel unit maintains a polarity, When the liquid crystal display panel displays the change frame, the pixel unit changes polarity.
  • the a is 6 to 16.
  • the non-changing frame is located at a fixed position of the corresponding picture frame group.
  • the pixel unit includes:
  • a first pixel unit for receiving the first data signal
  • a second pixel unit for receiving the second data signal.
  • the first pixel unit and the second pixel unit are alternately arranged.
  • the pixel unit includes a thin film transistor including a gate, a source, and a drain, and the gate is connected to the scan line, the source A pole is connected to the data line, and the drain is connected to the pixel electrode.
  • the liquid crystal display panel further includes a scan driving circuit and a data driving circuit, the scan driving circuit is connected to the scan line, and the data driving circuit is connected to the data line.
  • the invention also provides an active shutter type 3D liquid crystal display device, comprising:
  • Shutter glasses for synthesizing left and right eye images of the liquid crystal display panel into a 3D picture
  • the liquid crystal display panel includes a plurality of data lines parallel to each other and a plurality of scanning lines parallel to each other, the plurality of data lines and the plurality of scanning lines are vertically arranged to intersect each other, the plurality of data lines and the plurality of data lines Multiple scan lines intersect to form a plurality of pixel units,
  • the a is 6 to 16.
  • the non-change frame is located at a fixed position of the corresponding picture frame group.
  • the pixel unit includes:
  • a first pixel unit for receiving the first data signal
  • a second pixel unit for receiving the second data signal.
  • the number of the first pixel units is equal to the number of the second pixel units.
  • the first pixel unit and the second pixel unit are alternately arranged.
  • the pixel unit includes a thin film transistor including a gate, a source, and a drain, and the gate is connected to the scan line.
  • the source is connected to the data line, and the drain is connected to the pixel electrode.
  • the liquid crystal display panel further includes a scan driving circuit and a data driving circuit, the scan driving circuit is connected to the scan line, the data driving circuit and the Data line connection.
  • the active shutter type 3D liquid crystal display device further includes:
  • the liquid crystal display panel and the liquid crystal display device of the present invention can effectively eliminate or reduce the residual image of the liquid crystal display panel by setting the non-changing frame and the changing frame in the frame group of the picture frame. Phenomenon and 3D ghost phenomenon; solve the technical problem that the existing liquid crystal display panel is prone to image sticking phenomenon and 3D ghost phenomenon.
  • FIG. 1 is a schematic diagram of pixel polarities for driving an active shutter type 3D liquid crystal display using a dot inversion driving method
  • FIG. 2 is a schematic diagram of pixel polarities for driving an active shutter type 3D liquid crystal display using a 2-frame dot inversion driving method
  • FIG. 3 is a schematic structural view of a first preferred embodiment of a liquid crystal display panel of the present invention.
  • FIG. 5 is a schematic structural view of a second preferred embodiment of a liquid crystal display panel of the present invention.
  • Fig. 6 is a view showing the polarity of a pixel during display driving in a second preferred embodiment of the liquid crystal display panel of the present invention.
  • the liquid crystal display panel of the invention is suitable for the liquid crystal display of the active shutter type 3D display technology, and can better solve the technical problem that the existing liquid crystal display panel is prone to image sticking phenomenon and 3D ghost phenomenon.
  • FIGS. 3 and 4. 4 is a schematic view showing the polarity of a pixel during display driving in a first preferred embodiment of the liquid crystal display panel of the present invention.
  • the first pixel unit 331 and the second pixel unit 332 are alternately disposed, that is, the first pixel unit 331 is surrounded by the second pixel unit 332 , and the second pixel unit 332 is also surrounded by the first pixel unit 331 .
  • This is the same as the position setting of pixel units of different polarities in the dot inversion driving method in the prior art.
  • FIG. 4 wherein the 01 picture frame to the 08 picture frame in FIG. 4 is a continuous 8 frame display picture frame, and the 01 picture frame to the 08 picture frame constitute a picture frame group.
  • an odd picture frame is set for displaying a left eye picture signal
  • an even picture frame is used for displaying a right eye picture signal
  • a fifth picture frame in a picture frame group is a non-change frame
  • other picture frames in the picture frame group are changed frames.
  • the pixel in the upper left corner of FIG. 4 As an example, when the 01 picture frame, that is, the first frame left eye picture frame is displayed, the pixel is a positive polarity pixel, and the positive left eye data signal is displayed; when the 02 picture frame is displayed, the first frame is displayed. In the right eye picture frame, the pixel is a negative polarity pixel, and the negative right eye data signal is displayed; when the 03 picture frame, that is, the second frame left eye picture frame is displayed, the pixel is a positive polarity pixel, and the positive left eye data signal is displayed.
  • the pixel In the case of the left-eye picture frame, the pixel is a negative polarity pixel, and the negative left eye data signal is displayed; when the 08 picture frame, that is, the fourth right-eye picture frame is displayed, the pixel is a positive polarity pixel, and the positive right eye data signal is displayed. Since the pixel displays the positive left eye data signal and the positive right eye data signal in the continuous 8 frames, the negative left eye data signal and the negative right eye data signal are displayed, so the left eye picture and the right eye are displayed. The grayscale of the picture is large or small, and the pixel switches the pixel polarity every 8 frames, thus avoiding the phenomenon of image sticking.
  • the pixel in the upper left corner of FIG. 4 is set as the first pixel unit 331 (ie, all the positive polarity pixels are set as the first pixel unit 331), and the pixel in the lower left corner of FIG. 4 is the second pixel unit 332 (ie, all negative electrodes are set)
  • the sexual pixel is the second pixel unit 332).
  • the first pixel unit 331 is a positive polarity pixel
  • the second pixel unit 332 is a negative polarity pixel
  • the first pixel unit 331 is a negative polarity pixel
  • the second pixel unit 332 is a second pixel unit 332.
  • the first pixel unit 331 is a positive polarity pixel
  • the second pixel unit 332 is a negative polarity pixel
  • the first pixel unit 331 is a negative polarity pixel
  • the second pixel unit 332 is a positive polarity pixel
  • the first pixel unit 331 is a positive polarity a pixel
  • the second pixel unit 332 is a negative polarity pixel
  • the 07 picture frame is displayed, the first pixel unit 331 is a negative polarity pixel
  • the second pixel unit 332 is a positive polarity pixel
  • the 08 picture frame is displayed, the first pixel unit 331 is a positive polarity pixel, and the second pixel unit 332 is a positive polarity pixel
  • the 08 picture frame is displayed, the first pixel unit 331 is a positive polarity pixel, and the second pixel unit
  • the luminances of the first pixel unit 331 and the second pixel unit 332 are both high (the polarity of the first pixel unit 331 and the second pixel unit 332 in the 08 picture frame and the 01 picture frame are the same, The brightness of the pixel unit in the 01 picture frame after the pixel charge is redistributed is higher); when the 02 picture frame to the 04 picture frame is displayed, the brightness of the pixel unit 33 is low; when the 05 picture frame is displayed, the pixel unit The brightness of 33 is high; when the 06 picture frame to the 08 picture frame is displayed, the brightness of the pixel unit 33 is low.
  • the 01 picture frame and the 05 picture frame have higher brightness, and the other picture frame brightness is lower, that is, the first frame left eye picture and the third frame left eye picture have higher brightness, the second frame left eye picture and the fourth frame left eye
  • the brightness of the picture is low; the brightness of the picture from the right eye of the first frame to the frame of the right eye of the fourth frame is low.
  • the brightness of the right eye picture is always higher than the brightness of the left eye picture (or the brightness of the left eye picture is always higher than the brightness of the right eye picture), and the brightness difference between the left eye picture and the right eye picture is reduced. , thereby reducing the 3D ghosting phenomenon of the liquid crystal display panel.
  • the pixel unit 33 of the liquid crystal display panel 30 of the preferred embodiment further includes a thin film transistor 333 and a pixel electrode 334.
  • the thin film transistor 333 includes a gate, a source and a drain, and the gate is connected to the scan line 32.
  • the data line 31 is connected, and the drain is connected to the pixel electrode 334.
  • the thin film transistor 333 is disposed in the pixel unit 33 and is adjacent to an intersection position of the correspondingly connected scan line 32 and the data line 31.
  • the liquid crystal display panel 30 of the preferred embodiment further includes a scan driving circuit 34 and a data driving circuit 35.
  • the scan driving circuit 34 is connected to the scanning line 32, and the data driving circuit 35 is connected to the data line 31.
  • the data driving circuit 35 includes a plurality of signals. a driving end, the data driving circuit controls different signal driving ends to have different voltage polarities according to a control signal outputted by a timing control circuit (not shown), thereby controlling different output polarities of the data lines 31 when displaying pictures of different frames sexual data signal.
  • the liquid crystal display panel of the preferred embodiment can effectively eliminate or reduce the image sticking phenomenon and the 3D ghosting phenomenon of the liquid crystal display panel by setting the non-changing frame and the changing frame in the picture frame group.
  • FIG. 5 is a schematic structural view of a second preferred embodiment of the liquid crystal display panel of the present invention.
  • the liquid crystal display panel 50 of the preferred embodiment includes a plurality of mutually parallel data lines 51 (D1 to Db), a plurality of mutually parallel scanning lines 52 (G1 to Ga), and the plurality of data lines 51 and the plurality of scanning lines. 52 are arranged perpendicularly to each other.
  • the plurality of data lines 51 and the plurality of scan lines 52 intersect to form a plurality of pixel units 53.
  • the liquid crystal display panel 50 of the preferred embodiment differs from the first preferred embodiment in that each picture frame group includes 16 frame pictures, that is, one frame non-change frame and 15 frame change frame.
  • the liquid crystal display panel 50 of the preferred embodiment displays a non-changing frame
  • all the pixel units 53 of the liquid crystal display panel 50 maintain the polarity unchanged; when the liquid crystal display panel 50 displays the changed frame, all the pixel units 53 of the liquid crystal display panel 50 change poles.
  • the change frame can be located at any position of the corresponding picture frame group, but the non-change frame is convenient for designing the drive circuit when it is located at a fixed position of the picture frame group.
  • Fig. 6 is a view showing the polarity of a pixel during display driving in a second preferred embodiment of the liquid crystal display panel of the present invention.
  • the first pixel unit 531 and the second pixel unit 532 are alternately arranged in FIG. This is the same as the position setting of pixel units of different polarities in the dot inversion driving method in the prior art.
  • the 01 picture frame to the 16 picture frame in FIG. 6 is a continuous 16 frame display picture frame, and the 01 picture frame to the 16 picture frame constitute a picture frame group.
  • an odd picture frame is set for displaying a left eye picture signal
  • an even picture frame is used for displaying a right eye picture signal
  • a ninth picture frame in a picture frame group is a non-change frame
  • other picture frames in the picture frame group are changed frames. .
  • the pixel in the upper left corner of FIG. 6 As an example, when the 01 picture frame, that is, the first frame left eye picture frame is displayed, the pixel is a positive polarity pixel, and the positive left eye data signal is displayed; the 02 frame frame is displayed as the first frame. In the right eye picture frame, the pixel is a negative polarity pixel, and the negative right eye data signal is displayed; ... when the 09 picture frame, that is, the fifth frame left eye picture frame is displayed, the pixel is a negative polarity pixel, and the negative left eye is displayed.
  • a data signal when displaying a 10-frame frame, that is, a fifth-frame right-eye frame, the pixel is a positive pixel, and a positive right-eye data signal is displayed; ... when a 15-frame frame, that is, an eighth-frame left-eye frame is displayed, The pixel is a negative polarity pixel and displays a negative left eye data signal.
  • a 16 frame frame that is, an eighth frame right eye frame is displayed
  • the pixel is a positive pixel and a positive right eye data signal is displayed. Since the pixel displays the positive left eye data signal and the positive right eye data signal in 16 consecutive frames, the negative left eye data signal and the negative right eye data signal are displayed, so the left eye picture and the right eye are displayed.
  • the pixel switches the pixel polarity every 16 frames, thus avoiding the phenomenon of image sticking.
  • the pixel in the upper left corner of FIG. 6 is set as the first pixel unit 531 (ie, all the positive polarity pixels are set as the first pixel unit 531), and the pixels in the second row and the first column in FIG. 6 are the second pixel unit 532 (ie, All negative polarity pixels are set to be the second pixel unit 532).
  • the first pixel unit 531 is a positive polarity pixel
  • the second pixel unit 532 is a negative polarity pixel
  • the first pixel unit 531 is a negative polarity pixel
  • the second pixel unit 532 is a second pixel unit 532.
  • the first pixel unit 531 when displaying a 15-frame frame, the first pixel unit 531 is a negative polarity pixel, and the second pixel unit 532 is a positive polarity pixel; when displaying a 16-frame frame, The first pixel unit 531 is a positive polarity pixel, and the second pixel unit 532 is a negative polarity pixel.
  • the luminances of the first pixel unit 531 and the second pixel unit 532 are both high (the polarity of the first pixel unit 531 and the second pixel unit 532 in the 16 picture frame and the 01 picture frame are the same, The brightness of the pixel unit in the 01 picture frame after the pixel charge is redistributed is higher); when the 02 picture frame to the 08 picture frame is displayed, the brightness of the pixel unit 53 is low; when the 09 picture frame is displayed, the pixel unit The brightness of 53 is high; when displaying 10 picture frames to 16 picture frames, the brightness of the pixel unit 53 is low.
  • the 01 picture frame and the 09 picture frame have higher brightness, and the other picture frame brightness is lower, that is, the brightness of the first frame left eye picture and the fifth frame left eye picture is lower, the second, third, fourth, sixth, seventh, eighth The brightness of the left eye picture of the frame is low; the brightness of the right eye picture to the 8th frame of the right frame of the first frame is low.
  • the brightness of the right eye picture is always higher than the brightness of the left eye picture (or the brightness of the left eye picture is always higher than the brightness of the right eye picture), and the brightness difference between the left eye picture and the right eye picture is reduced. , thereby reducing the 3D ghosting phenomenon of the liquid crystal display panel.
  • the pixel unit 53 of the liquid crystal display panel 50 of the preferred embodiment further includes a thin film transistor 533 including a gate, a source and a drain, and a drain electrode 52 connected to the scan line 52.
  • the data line 51 is connected, and the drain is connected to the pixel electrode 534.
  • the thin film transistor 533 is disposed in the pixel unit 53 and is adjacent to an intersection position of the correspondingly connected scan line 52 and the data line 51.
  • the liquid crystal display panel 50 of the preferred embodiment further includes a scan driving circuit 54 and a data driving circuit 55.
  • the scan driving circuit 54 is connected to the scanning line 52
  • the data driving circuit 55 is connected to the data line 51.
  • the data driving circuit 55 includes a plurality of signals. a driving end, the data driving circuit controls different signal driving ends to have different voltage polarities according to a control signal outputted by a timing control circuit (not shown), thereby controlling different output polarities of the data lines 51 when displaying pictures of different frames sexual data signal.
  • the liquid crystal display panel of the preferred embodiment can effectively eliminate or reduce the image sticking phenomenon and the 3D ghosting phenomenon of the liquid crystal display panel by setting the non-changing frame and the changing frame in the picture frame group.
  • the present invention also provides an active shutter type 3D liquid crystal display device including the above liquid crystal display panel, shutter glasses, and a synchronization device.
  • the liquid crystal display panel is configured to display left and right eye images; the shutter glasses are used to synthesize the left and right eye images of the liquid crystal display panel into a 3D image; and the synchronization device is configured to perform synchronous switching of the lens switch of the shutter and the left and right eye images of the liquid crystal display panel.
  • the specific working principle of the liquid crystal display panel in the active shutter type 3D liquid crystal display device of the present invention is the same as that described in the preferred embodiment of the liquid crystal display panel. For details, refer to the related description in the preferred embodiment of the liquid crystal display panel.
  • the liquid crystal display panel and the active shutter type 3D liquid crystal display device of the present invention change the polarity of all pixel units in each picture frame by setting the non-changing frame and the changing frame in the picture frame group, so that each pixel unit is in 2 frames
  • the pixel polarity is switched to avoid the phenomenon of image sticking; at the same time, the brightness of some left eye images is higher in each picture frame group, and the brightness of some left eye pictures is lower, which reduces the left eye picture and the right eye picture.
  • the difference in brightness between the two thereby weakening the 3D ghosting phenomenon of the liquid crystal display panel, and improving the display quality of the liquid crystal display.

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Abstract

一种液晶显示面板（30），设置连续的a帧画面构成一画面帧组，每个画面帧组包括一非变化帧及变化帧，显示非变化帧时，像素单元维持极性，显示变化帧时，像素单元改变极性，由此有效消除残影现象和3D重影现象。还提供一种主动快门式3D液晶显示装置。

Description

液晶显示面板及主动快门式3D液晶显示装置 技术领域
本发明涉及液晶技术领域，特别是涉及一种液晶显示面板及主动快门式3D液晶显示装置。
 背景技术
主动快门式3D（Active Shutter 3D）显示技术通过高刷新率的液晶显示器配合3D快门眼镜实现3D显示。其中3D快门眼镜的镜片实质上是可以分别控制开关的两片液晶屏，该液晶层有黑和白两种状态，非通电状态时镜片为白色即透明状态，通电状态时镜片就会变为黑色。这样可以通过一片液晶屏接收液晶显示器的左眼画面信号，另一片液晶屏接收液晶显示器的右眼画面信号，同时液晶显示器通过信号发射装置发射同步信号，使3D快门眼镜的液晶屏切换和液晶显示器的左右眼画面切换之间实现精确的同步。
液晶分子具有这样一种特性：若加载于液晶层两端的电场方向长时间保持不变，那么液晶分子的特性便会遭到破坏，即无法再因应电场的变化来转动，从而形成不同的灰阶。因此，每隔一定时间就必须改变电场方向以是液晶分子反转，从而避免液晶分子的特性遭到破坏。为此，业界发展了多种驱动方法来实现液晶分子的反转（极性反转），如点反转（dot inversion）驱动方法，帧反转（frame inversion）驱动方法，列反转（column inversion）驱动方法以及行反转（row inversion）驱动方法。
一般在数据线上所传送的数据信号，以公共电压Vcom作为参考电压，可以分为电压高于该公共电压Vcom的正极性数据信号（+）与电压低于该公共电压Vcom的负极性数据信号（-）。正极性数据信号是指其电压高于公共电压Vcom，而负极性数据信号是指其电压低于公共电压Vcom。同一灰阶值分别以正极性数据信号和负极性数据信号表示时，理论上显示效果是一致的。
当主动快门式3D液晶显示器使用点反转驱动方法进行画面像素驱动时，液晶显示器的像素极性如图1所示，图1中的01画面帧至04画面帧为连续四帧显示画面帧。由于一般液晶显示器的奇数帧画面用于显示左眼画面（或右眼画面），偶数帧画面用于显示右眼画面（或左眼画面），如液晶显示器的画面信号为左眼信号是高灰阶信号（如白色信号），右眼信号是低灰阶信号（如黑色信号），则会出现图1中的01画面的左上的正极性像素（显示正极性数据信号的像素）用于显示高灰阶信号，02画面的左上的负极性像素（显示负极性数据信号的像素）用于显示低灰阶信号，03画面的左上的正极性像素又用于显示高灰阶信号。由于低灰阶信号时，无论是正极性数据信号还是负极性数据信号均会接近公共电压Vcom；而高灰阶信号时，无论是正极性数据信号还是负极性数据信号均会远离公共电压Vcom，这样导致液晶显示器的像素其实一直为正极性像素（显示正极性数据信号）或一直为负极性像素（显示负极性数据信号），液晶显示器容易产生残影现象（image sticking）。
当主动快门式3D液晶显示器使用2帧点反转驱动方法进行画面像素驱动时，液晶显示器的像素极性如图2所示，图2中的01画面帧至04画面帧为连续四帧显示画面帧。如液晶显示器的画面信号为左眼信号是高灰阶信号，右眼信号是低灰阶信号，则图2中的01画面的左上的正极性像素用于显示高灰阶信号，02画面的左上的正极性像素用于显示低灰阶信号，03画面的左上的负向性像素用于显示高灰阶信号，04画面的左上的负向性像素用于显示低灰阶信号。这样液晶显示器的每个像素既显示了正极性的高灰阶信号，又显示了负极性的高灰阶信号，避免了残影现象的产生。
但是该液晶显示器的显示过程中，图2的02画面和04画面一般为右眼画面，图2的01画面和03画面一般为左眼画面，由于01画面和02画面为同极性的数据信号，液晶显示器对该数据信号进行显示时，需要对像素中的电荷进行重新分配，将会导致重新分配后的像素的亮度较高，从而造成02画面的亮度高于01画面的亮度；同理，04画面的亮度高于03画面的亮度，即右眼画面的亮度高于左眼画面的亮度。这样会造成液晶显示器容易产生3D重影现象，影响液晶显示器的显示品质。
故，有必要提供一种液晶显示面板及主动快门式3D液晶显示装置，以解决现有技术所存在的问题。
 技术问题
本发明的目的在于提供一种不易产生残影现象和3D重影现象的液晶显示面板及主动快门式3D液晶显示装置，以解决现有的液晶显示面板容易产生残影现象以及3D重影现象的技术问题。
 技术解决方案
本发明提供一种液晶显示面板，包括相互平行的多条数据线、相互平行的多条扫描线，所述多条数据线和所述多条扫描线相互垂直交叉排列，所述多条数据线和所述多条扫描线交叉形成多个像素单元，其中，
设置连续的a帧画面构成一画面帧组，每个所述画面帧组包括一非变化帧及变化帧，所述液晶显示面板显示所述非变化帧时，所述像素单元维持极性，所述液晶显示面板显示所述变化帧时，所述像素单元改变极性。
在本发明所述的液晶显示面板中，所述a为6至16。
在本发明所述的液晶显示面板中，所述非变化帧位于相应的所述画面帧组的固定位置。
在本发明所述的液晶显示面板中，所述像素单元包括：
第一像素单元，用于接收第一数据信号；以及
第二像素单元，用于接收第二数据信号。
在本发明所述的液晶显示面板中，所述第一像素单元的数量等于所述第二像素单元的数量。
在本发明所述的液晶显示面板中，所述第一像素单元与所述第二像素单元交错设置。
在本发明所述的液晶显示面板中，所述像素单元包括薄膜晶体管和像素电极，所述薄膜晶体管包括栅极、源极和漏极，所述栅极与所述扫描线连接，所述源极与所述数据线连接，所述漏极与所述像素电极连接。
在本发明所述的液晶显示面板中，所述液晶显示面板还包括扫描驱动电路和数据驱动电路，所述扫描驱动电路与所述扫描线连接，所述数据驱动电路与所述数据线连接。
本发明还提供一种主动快门式3D液晶显示装置，其包括：
液晶显示面板；以及
快门眼镜，用于将所述液晶显示面板的左右眼画面合成为3D画面；
其中所述液晶显示面板包括相互平行的多条数据线、相互平行的多条扫描线，所述多条数据线和所述多条扫描线相互垂直交叉排列，所述多条数据线和所述多条扫描线交叉形成多个像素单元，
设置连续的a帧画面构成一画面帧组，每个所述画面帧组包括一非变化帧及变化帧，所述液晶显示面板显示所述非变化帧时，所述像素单元维持极性，所述液晶显示面板显示所述变化帧时，所述像素单元改变极性。
在本发明所述的主动快门式3D液晶显示装置中，所述a为6至16。
在本发明所述的主动快门式3D液晶显示装置中，所述非变化帧位于相应的所述画面帧组的固定位置。
在本发明所述的主动快门式3D液晶显示装置中，所述像素单元包括：
第一像素单元，用于接收第一数据信号；以及
第二像素单元，用于接收第二数据信号。
在本发明所述的主动快门式3D液晶显示装置中，所述第一像素单元的数量等于所述第二像素单元的数量。
在本发明所述的主动快门式3D液晶显示装置中，所述第一像素单元与所述第二像素单元交错设置。
在本发明所述的主动快门式3D液晶显示装置中，所述像素单元包括薄膜晶体管和像素电极，所述薄膜晶体管包括栅极、源极和漏极，所述栅极与所述扫描线连接，所述源极与所述数据线连接，所述漏极与所述像素电极连接。
在本发明所述的主动快门式3D液晶显示装置中，所述液晶显示面板还包括扫描驱动电路和数据驱动电路，所述扫描驱动电路与所述扫描线连接，所述数据驱动电路与所述数据线连接。
在本发明所述的主动快门式3D液晶显示装置中，其中所述主动快门式3D液晶显示装置还包括：
同步装置，用于进行所述快门眼镜的镜片开关和所述液晶显示面板的左右眼画面的同步切换。
 有益效果
相较于现有的液晶显示面板和液晶显示装置，本发明的液晶显示面板和液晶显示装置通过画面帧组中非变化帧和变化帧的设置，可有效的消除或减弱液晶显示面板的残影现象和3D重影现象；解决了现有的液晶显示面板容易产生残影现象以及3D重影现象的技术问题。
 附图说明
图1为使用点反转驱动方法对主动快门式3D液晶显示器进行驱动的像素极性示意图；
图2为使用2帧点反转驱动方法对主动快门式3D液晶显示器进行驱动的像素极性示意图；
图3为本发明的液晶显示面板的第一优选实施例的结构示意图；
图4为本发明的液晶显示面板的第一优选实施例的显示驱动时的像素极性示意图；
图5为本发明的液晶显示面板的第二优选实施例的结构示意图；
图6为本发明的液晶显示面板的第二优选实施例的显示驱动时的像素极性示意图。
 本发明的最佳实施方式
以下各实施例的说明是参考附加的图式，用以例示本发明可用以实施的特定实施例。本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
在图中，结构相似的单元是以相同标号表示。
本发明的液晶显示面板适用于主动快门式3D显示技术的液晶显示器，可较好的解决现有的液晶显示面板容易产生残影现象以及3D重影现象的技术问题。
请参照图3，图3为本发明的液晶显示面板的第一优选实施例的结构示意图。本优选实施例的液晶显示面板30包括多条相互平行的数据线31（D1~Db）、多条相互平行的扫描线32（G1~Ga），该多条数据线31与该多条扫描线32相互垂直交叉排列。该多条数据线31和该多条扫描线32交叉形成多个像素单元33。本实用新型的液晶显示面板30使用时，像素单元33的极性以一画面帧组为单位进行循环变化。首先设置连续的a帧画面构成一画面帧组，a的取值可根据用户的要求进行设置，一般a为6至16。每个画面帧组包括一非变化帧及变化帧，如a为8，即有1帧非变化帧和7帧变化帧；如a为16，即有1帧非变化帧和15帧变化帧。本优选实施例的液晶显示面板30显示非变化帧时，液晶显示面板30的所有像素单元33维持极性不变；液晶显示面板30显示变化帧时，液晶显示面板30的所有像素单元33改变极性。该非变化帧可位于相应的画面帧组的任一位置，但非变化帧位于画面帧组的固定位置时便于对驱动电路进行设计。
下面通过图3和图4详细说明本优选实施例的液晶显示面板的工作原理。图4为本发明的液晶显示面板的第一优选实施例的显示驱动时的像素极性示意图。
在图3中第一像素单元331和第二像素单元332交错设置，即第一像素单元331的周围均为第二像素单元332，第二像素单元332的周围也均为第一像素单元331。这与现有技术中点反转驱动方法中不同极性的像素单元的位置设置相同。对该液晶显示面板30进行显示驱动时，请参照图4，其中图4中的01画面帧至08画面帧为连续8帧显示画面帧，上述01画面帧至08画面帧组成一画面帧组。这里设定奇数画面帧用于显示左眼画面信号，偶数画面帧用于显示右眼画面信号，画面帧组中的第5画面帧为非变化帧，画面帧组中的其他画面帧为变化帧。
以图4中左上角的像素为例，在显示01画面帧即第一帧左眼画面帧时，该像素为正极性像素，显示正极性左眼数据信号；在显示02画面帧即第一帧右眼画面帧时，该像素为负极性像素，显示负极性右眼数据信号；在显示03画面帧即第二帧左眼画面帧时，该像素为正极性像素，显示正极性左眼数据信号；在显示04画面帧即第二帧右眼画面帧时，该像素为负极性像素，显示负极性右眼数据信号；在显示05画面帧即第三帧左眼画面帧时，该像素为负极性像素，显示负极性左眼数据信号；在显示06画面帧即第三帧右眼画面帧时，该像素为正极性像素，显示正极性右眼数据信号；在显示07画面帧即第四帧左眼画面帧时，该像素为负极性像素，显示负极性左眼数据信号；在显示08画面帧即第四右眼画面帧时，该像素为正极性像素，显示正极性右眼数据信号。由于该像素在连续8帧画面中显示了正极性左眼数据信号和正极性右眼数据信号，又显示了负极性左眼数据信号和负极性右眼数据信号，因此无论左眼画面和右眼画面的灰阶数大还是小，该像素在每8帧画面中均会切换像素极性，因此避免了残影现象的产生。
设定图4中左上角的像素为第一像素单元331（即设定所有正极性像素为第一像素单元331），图4中左下角的像素为第二像素单元332（即设定所有负极性像素为第二像素单元332）。在显示01画面帧时，第一像素单元331为正极性像素，第二像素单元332为负极性像素；在显示02画面帧时，第一像素单元331为负极性像素，第二像素单元332为正极性像素；在显示03画面帧时，第一像素单元331为正极性像素，第二像素单元332为负极性像素；在显示04画面帧时，第一像素单元331为负极性像素，第二像素单元332为正极性像素；在显示05画面帧时，第一像素单元331为负极性像素，第二像素单元332为正极性像素；在显示06画面帧时，第一像素单元331为正极性像素，第二像素单元332为负极性像素；在显示07画面帧时，第一像素单元331为负极性像素，第二像素单元332为正极性像素；在显示08画面帧时，第一像素单元331为正极性像素，第二像素单元332为负极性像素。
因此在显示01画面帧时，第一像素单元331和第二像素单元332的亮度均较高（08画面帧和01画面帧中的第一像素单元331和第二像素单元332的极性相同，会导致像素电荷重新分配后的01画面帧中的像素单元的亮度较高）；在显示02画面帧至04画面帧时，像素单元33的亮度均较低；在显示05画面帧时，像素单元33的亮度均较高；在显示06画面帧至08画面帧时，像素单元33的亮度均较低。这样01画面帧和05画面帧亮度较高，其他画面帧亮度较低，即第1帧左眼画面和第3帧左眼画面的亮度较高，第2帧左眼画面和第4帧左眼画面的亮度较低；第1帧右眼画面至第4帧右眼画面的亮度较低。相对现有技术中右眼画面的亮度一直高于左眼画面的亮度（或左眼画面的亮度一直高于右眼画面的亮度），减小了左眼画面和右眼画面之间的亮度差，从而减弱了液晶显示面板的3D重影现象。
本优选实施例的液晶显示面板30的像素单元33还包括薄膜晶体管333和像素电极334，薄膜晶体管333包括栅极、源极和漏极，该栅极与该扫描线32连接，该源极与该数据线31连接，该漏极与该像素电极334连接。该薄膜晶体管333设置在像素单元33内且靠近对应连接的扫描线32与数据线31构成的交叉位置。
本优选实施例的液晶显示面板30还包括扫描驱动电路34以及数据驱动电路35，扫描驱动电路34与扫描线32连接，数据驱动电路35与数据线31连接，该数据驱动电路35包括多个信号驱动端，该数据驱动电路依据时序控制电路（图中未示出）输出的控制信号，控制多个信号驱动端具有不同的电压极性，从而控制显示不同帧的画面时数据线31输出不同极性的数据信号。
本优选实施例的液晶显示面板通过画面帧组中非变化帧和变化帧的设置，可有效的消除或减弱液晶显示面板的残影现象和3D重影现象。
请参照图5，图5为本发明的液晶显示面板的第二优选实施例的结构示意图。本优选实施例的液晶显示面板50包括多条相互平行的数据线51（D1~Db）、多条相互平行的扫描线52（G1~Ga），该多条数据线51与该多条扫描线52相互垂直交叉排列。该多条数据线51和该多条扫描线52交叉形成多个像素单元53。本优选实施例的液晶显示面板50与第一优选实施例的区别在于每个画面帧组包括16帧画面，即有1帧非变化帧和15帧变化帧。本优选实施例的液晶显示面板50显示非变化帧时，液晶显示面板50的所有像素单元53维持极性不变；液晶显示面板50显示变化帧时，液晶显示面板50的所有像素单元53改变极性。该变化帧可位于相应的画面帧组的任一位置，但非变化帧位于画面帧组的固定位置时便于对驱动电路进行设计。
下面通过图5和图6详细说明本优选实施例的液晶显示面板的工作原理。图6为本发明的液晶显示面板的第二优选实施例的显示驱动时的像素极性示意图。
在图6中第一像素单元531和第二像素单元532交错设置。这与现有技术中点反转驱动方法中不同极性的像素单元的位置设置相同。对该液晶显示面板50进行显示驱动时，请参照图6，其中图6中的01画面帧至16画面帧为连续16帧显示画面帧，上述01画面帧至16画面帧组成一画面帧组。这里设定奇数画面帧用于显示左眼画面信号，偶数画面帧用于显示右眼画面信号，画面帧组中的第9画面帧为非变化帧，画面帧组中的其他画面帧为变化帧。
以图6中左上角的像素为例，在显示01画面帧即第一帧左眼画面帧时，该像素为正极性像素，显示正极性左眼数据信号；在显示02画面帧即第一帧右眼画面帧时，该像素为负极性像素，显示负极性右眼数据信号；……在显示09画面帧即第五帧左眼画面帧时，该像素为负极性像素，显示负极性左眼数据信号；在显示10画面帧即第五帧右眼画面帧时，该像素为正极性像素，显示正极性右眼数据信号；……在显示15画面帧即第八帧左眼画面帧时，该像素为负极性像素，显示负极性左眼数据信号；在显示16画面帧即第八帧右眼画面帧时，该像素为正极性像素，显示正极性右眼数据信号。由于该像素在连续16帧画面中显示了正极性左眼数据信号和正极性右眼数据信号，又显示了负极性左眼数据信号和负极性右眼数据信号，因此无论左眼画面和右眼画面的灰阶数大还是小，该像素在每16帧画面中均会切换像素极性，因此避免了残影现象的产生。
设定图6中左上角的像素为第一像素单元531（即设定所有正极性像素为第一像素单元531），图6中第二行第一列的像素为第二像素单元532（即设定所有负极性像素为第二像素单元532）。在显示01画面帧时，第一像素单元531为正极性像素，第二像素单元532为负极性像素；在显示02画面帧时，第一像素单元531为负极性像素，第二像素单元532为正极性像素；……在显示07画面帧时，第一像素单元531为正极性像素，第二像素单元532为负极性像素；在显示08画面帧时，第一像素单元531为负极性像素，第二像素单元532为正极性像素；在显示09画面帧时，第一像素单元531为负极性像素，第二像素单元532为正极性像素；在显示10画面帧时，第一像素单元531为正极性像素，第二像素单元532为负极性像素；……在显示15画面帧时，第一像素单元531为负极性像素，第二像素单元532为正极性像素；在显示16画面帧时，第一像素单元531为正极性像素，第二像素单元532为负极性像素。
因此在显示01画面帧时，第一像素单元531和第二像素单元532的亮度均较高（16画面帧和01画面帧中的第一像素单元531和第二像素单元532的极性相同，会导致像素电荷重新分配后的01画面帧中的像素单元的亮度较高）；在显示02画面帧至08画面帧时，像素单元53的亮度均较低；在显示09画面帧时，像素单元53的亮度均较高；在显示10画面帧至16画面帧时，像素单元53的亮度均较低。这样01画面帧和09画面帧亮度较高，其他画面帧亮度较低，即第1帧左眼画面和第5帧左眼画面的亮度较低，第2、3、4、6、7、8帧左眼画面的亮度较低；第1帧右眼画面至第8帧右眼画面的亮度较低。相对现有技术中右眼画面的亮度一直高于左眼画面的亮度（或左眼画面的亮度一直高于右眼画面的亮度），减小了左眼画面和右眼画面之间的亮度差，从而减弱了液晶显示面板的3D重影现象。
本优选实施例的液晶显示面板50的像素单元53还包括薄膜晶体管533和像素电极534，薄膜晶体管533包括栅极、源极和漏极，该栅极与该扫描线52连接，该源极与该数据线51连接，该漏极与该像素电极534连接。该薄膜晶体管533设置在像素单元53内且靠近对应连接的扫描线52与数据线51构成的交叉位置。
本优选实施例的液晶显示面板50还包括扫描驱动电路54以及数据驱动电路55，扫描驱动电路54与扫描线52连接，数据驱动电路55与数据线51连接，该数据驱动电路55包括多个信号驱动端，该数据驱动电路依据时序控制电路（图中未示出）输出的控制信号，控制多个信号驱动端具有不同的电压极性，从而控制显示不同帧的画面时数据线51输出不同极性的数据信号。
本优选实施例的液晶显示面板通过画面帧组中非变化帧和变化帧的设置，可有效的消除或减弱液晶显示面板的残影现象和3D重影现象。
本发明还提供一种主动快门式3D液晶显示装置，该主动快门式3D液晶显示装置包括上述的液晶显示面板、快门眼镜以及同步装置。该液晶显示面板用于显示左右眼画面；快门眼镜用于将液晶显示面板的左右眼画面合成为3D画面；同步装置用于进行快门的镜片开关和液晶显示面板的左右眼画面的同步切换。本发明的主动快门式3D液晶显示装置中的液晶显示面板的具体工作原理与上述的液晶显示面板的优选实施例中的描述相同，具体请参见上述液晶显示面板的优选实施例中的相关描述。
本发明的液晶显示面板和主动快门式3D液晶显示装置通过画面帧组中非变化帧和变化帧的设置，在每个画面帧改变所有像素单元的极性，使得每个像素单元在2帧画面中均会切换像素极性，避免了残影现象的产生；同时每个画面帧组中部分左眼画面亮度较高、部分左眼画面亮度较低，减小了左眼画面和右眼画面之间的亮度差，从而减弱了液晶显示面板的3D重影现象，提升了液晶显示器的显示品质。
综上所述，虽然本发明已以优选实施例揭露如上，但上述优选实施例并非用以限制本发明，本领域的普通技术人员，在不脱离本发明的精神和范围内，均可作各种更动与润饰，因此本发明的保护范围以权利要求界定的范围为准。
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  1. 一种液晶显示面板，包括相互平行的多条数据线、相互平行的多条扫描线，所述多条数据线和所述多条扫描线相互垂直交叉排列，所述多条数据线和所述多条扫描线交叉形成多个像素单元，其中，
    设置连续的a帧画面构成一画面帧组，每个所述画面帧组包括一非变化帧及变化帧，所述液晶显示面板显示所述非变化帧时，所述像素单元维持极性，所述液晶显示面板显示所述变化帧时，所述像素单元改变极性。
  2. 根据权利要求1所述的液晶显示面板，其中所述a为6至16。
  3. 根据权利要求1所述的液晶显示面板，其中所述非变化帧位于相应的所述画面帧组的固定位置。
  4. 根据权利要求1所述的液晶显示面板，其中所述像素单元包括：
    第一像素单元，用于接收第一数据信号；以及
    第二像素单元，用于接收第二数据信号。
  5. 根据权利要求4所述的液晶显示面板，其中所述第一像素单元的数量等于所述第二像素单元的数量。
  6. 根据权利要求4所述的液晶显示面板，其中所述第一像素单元与所述第二像素单元交错设置。
  7. 根据权利要求1所述的液晶显示面板，其中所述像素单元包括薄膜晶体管和像素电极，所述薄膜晶体管包括栅极、源极和漏极，所述栅极与所述扫描线连接，所述源极与所述数据线连接，所述漏极与所述像素电极连接。
  8. 根据权利要求1所述的液晶显示面板，其中所述液晶显示面板还包括扫描驱动电路和数据驱动电路，所述扫描驱动电路与所述扫描线连接，所述数据驱动电路与所述数据线连接。
  9. 一种主动快门式3D液晶显示装置，其包括：
    液晶显示面板；以及
    快门眼镜，用于将所述液晶显示面板的左右眼画面合成为3D画面；
    其中所述液晶显示面板包括相互平行的多条数据线、相互平行的多条扫描线，所述多条数据线和所述多条扫描线相互垂直交叉排列，所述多条数据线和所述多条扫描线交叉形成多个像素单元，
    设置连续的a帧画面构成一画面帧组，每个所述画面帧组包括一非变化帧及变化帧，所述液晶显示面板显示所述非变化帧时，所述像素单元维持极性，所述液晶显示面板显示所述变化帧时，所述像素单元改变极性。
  10. 根据权利要求9所述的主动快门式3D液晶显示装置，其中所述a为6至16。
  11. 根据权利要求9所述的主动快门式3D液晶显示装置，其中所述非变化帧位于相应的所述画面帧组的固定位置。
  12. 根据权利要求9所述的主动快门式3D液晶显示装置，其中所述像素单元包括：
    第一像素单元，用于接收第一数据信号；以及
    第二像素单元，用于接收第二数据信号。
  13. 根据权利要求12所述的主动快门式3D液晶显示装置，其中所述第一像素单元的数量等于所述第二像素单元的数量。
  14. 根据权利要求12所述的主动快门式3D液晶显示装置，其中所述第一像素单元与所述第二像素单元交错设置。
  15. 根据权利要求9所述的主动快门式3D液晶显示装置，其中所述像素单元包括薄膜晶体管和像素电极，所述薄膜晶体管包括栅极、源极和漏极，所述栅极与所述扫描线连接，所述源极与所述数据线连接，所述漏极与所述像素电极连接。
  16. 根据权利要求9所述的主动快门式3D液晶显示装置，其中所述液晶显示面板还包括扫描驱动电路和数据驱动电路，所述扫描驱动电路与所述扫描线连接，所述数据驱动电路与所述数据线连接。
  17. 根据权利要求9所述的主动快门式3D液晶显示装置，其中所述主动快门式3D液晶显示装置还包括：
    同步装置，用于进行所述快门眼镜的镜片开关和所述液晶显示面板的左右眼画面的同步切换。
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CN101226288A (zh) * 2008-02-02 2008-07-23 友达光电股份有限公司 显示装置及显示影像的方法
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