WO2013159372A1 - 立体显示装置及其驱动方法 - Google Patents

立体显示装置及其驱动方法 Download PDF

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WO2013159372A1
WO2013159372A1 PCT/CN2012/075020 CN2012075020W WO2013159372A1 WO 2013159372 A1 WO2013159372 A1 WO 2013159372A1 CN 2012075020 W CN2012075020 W CN 2012075020W WO 2013159372 A1 WO2013159372 A1 WO 2013159372A1
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Prior art keywords
sub
pixel
pixel region
region
tft switch
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PCT/CN2012/075020
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English (en)
French (fr)
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廖巧生
萧嘉强
陈峙彣
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深圳市华星光电技术有限公司
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Priority to US13/510,955 priority Critical patent/US20130286005A1/en
Publication of WO2013159372A1 publication Critical patent/WO2013159372A1/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
    • G09G3/3607—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 for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
    • G02B30/24—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type involving temporal multiplexing, e.g. using sequentially activated left and right shutters
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134345—Subdivided pixels, e.g. for grey scale or redundancy
    • 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

Definitions

  • the present invention relates to the field of stereoscopic display, and in particular to a stereoscopic display device and a driving method thereof.
  • the stereoscopic display device of the prior art generally adopts a parallel type to realize stereoscopic display.
  • the basic working principle is to set a phase difference plate in the light-emitting direction of the display panel, and different phase delays are generated by different regions on the phase difference plate, thereby making different The light of the pixels is emitted in different polarization directions, so that the viewer wearing the polarized glasses observes the stereoscopic image.
  • the stereoscopic display device of the prior art has crosstalk between the left and right eye images, the stereoscopic display device has a disadvantage of a small vertical viewing angle.
  • a black matrix Black The width of the Matrix, BM
  • BM black The width of the Matrix
  • the technical problem to be solved by the present invention is to provide a stereoscopic display device and a driving method thereof, such that the fourth sub-pixel region maintains a display dark state, thereby increasing the vertical viewing angle of the stereoscopic display device.
  • the present invention adopts a technical solution to provide a driving method of a stereoscopic display device.
  • the stereoscopic display device includes a plurality of pixel units arranged in a matrix, each pixel unit including a first sub-pixel region and a second a sub-pixel region, a third sub-pixel region, and a fourth sub-pixel region; a gate driver for supplying a plurality of sub-pixel regions with a scan voltage; and a source driver for supplying a plurality of sub-pixel regions with a driving voltage; wherein the driving method
  • the method includes: sequentially scanning the first sub-pixel region, the second sub-pixel region, the third sub-pixel region, and the fourth sub-pixel region; during the scanning of the fourth sub-pixel region, the source driver provides a constant driving voltage so that The four sub-pixel regions are kept in a dark state during the scanning process, wherein the driving voltage is equal to the common voltage of the stereoscopic display device, and the first sub-pixel region, the second sub-pixel region;
  • a stereoscopic display device including: a plurality of matrix-arranged pixel units, wherein each pixel unit includes a first sub-pixel region and a second sub-pixel a region, a third sub-pixel region, and a fourth sub-pixel region; a gate driver configured to provide a scan voltage for the plurality of sub-pixel regions to sequentially scan the first sub-pixel region, the second sub-pixel region, and the third sub-pixel region And a fourth sub-pixel region; a source driver for providing a driving voltage for the plurality of sub-pixel regions; wherein, during the scanning of the fourth sub-pixel region, the source driver provides a constant driving voltage such that the fourth sub-pixel region is The display remains dark during the scan.
  • Each of the pixel units includes: four sub-pixel electrodes disposed on the first substrate; and four color resist regions disposed on the second substrate and a black matrix disposed between the two adjacent color resist regions; wherein, a color resisting region is disposed corresponding to the first sub-pixel electrode to form a first sub-pixel region; a second color resisting region is disposed corresponding to the second sub-pixel electrode to form a second sub-pixel region; and the third color resisting region is The three sub-pixel electrodes are correspondingly disposed to form a third sub-pixel region; the fourth color resist region is disposed corresponding to the fourth sub-pixel electrode to form a fourth sub-pixel region.
  • Each of the pixel units further includes: a data line disposed on the first substrate, four scan lines, and four TFT switches; wherein, the scan line is used to provide a scan voltage, and the data line is used to transmit a driving voltage; the first TFT switch The gate of the first TFT switch is connected to the first scan line, the drain of the first TFT switch is connected to the first pixel electrode, and the gate of the second TFT switch is connected to the second scan line.
  • the source of the second TFT switch is connected to the data line, the drain of the second TFT switch is connected to the second pixel electrode; the gate of the third TFT switch is connected to the third scan line, and the source and the data line of the third TFT switch Connecting, the drain of the third TFT switch is connected to the third pixel electrode; the gate of the fourth TFT switch is connected to the fourth scan line, the source of the fourth TFT switch is connected to the data line, and the drain of the fourth TFT switch is The fourth pixel electrode is connected.
  • the first sub-pixel region, the second sub-pixel region, and the third sub-pixel region are respectively a red sub-pixel region, a green sub-pixel region, and a blue sub-pixel region, and the fourth sub-pixel region is a white or yellow pixel region.
  • the driving voltage of the fourth sub-pixel is equal to the common voltage of the stereoscopic display device.
  • another technical solution adopted by the present invention is to provide a driving method of a stereoscopic display device, where the stereoscopic display device includes a plurality of pixel units arranged in a matrix, each pixel unit including a first sub-pixel region, a second sub-pixel region, a third sub-pixel region, and a fourth sub-pixel region; a gate driver for supplying a plurality of sub-pixel regions with a scan voltage; and a source driver for supplying a driving voltage for the plurality of sub-pixel regions; wherein, driving The method includes sequentially scanning a first sub-pixel region, a second sub-pixel region, a third sub-pixel region, and a fourth sub-pixel region; wherein, during scanning of the fourth sub-pixel region, the source driver provides a constant driving The voltage causes the fourth sub-pixel region to remain in a dark state during scanning.
  • Each of the pixel units includes: four sub-pixel electrodes disposed on the first substrate; and four color resist regions disposed on the second substrate and a black matrix disposed between the two adjacent color resist regions; wherein The first color resisting region is disposed corresponding to the first sub-pixel electrode to form a first sub-pixel region; the second color resisting region is correspondingly disposed with the second sub-pixel electrode to form a second sub-pixel region; The resisting region is disposed corresponding to the third sub-pixel electrode to form a third sub-pixel region; and the fourth color resisting region is disposed corresponding to the fourth sub-pixel electrode to form a fourth sub-pixel region.
  • Each of the pixel units further includes: a data line disposed on the first substrate, four scan lines, and four TFT switches; wherein, the scan line is used to provide a scan voltage, and the data line is used to transmit a driving voltage; the first TFT switch The gate of the first TFT switch is connected to the first scan line, the drain of the first TFT switch is connected to the first pixel electrode, and the gate of the second TFT switch is connected to the second scan line.
  • the source of the second TFT switch is connected to the data line, the drain of the second TFT switch is connected to the second pixel electrode; the gate of the third TFT switch is connected to the third scan line, and the source and the data line of the third TFT switch Connecting, the drain of the third TFT switch is connected to the third pixel electrode; the gate of the fourth TFT switch is connected to the fourth scan line, the source of the fourth TFT switch is connected to the data line, and the drain of the fourth TFT switch is The fourth pixel electrode is connected.
  • the first sub-pixel region, the second sub-pixel region, and the third sub-pixel region are respectively a red sub-pixel region, a green sub-pixel region, and a blue sub-pixel region, and the fourth sub-pixel region is a white or yellow pixel region.
  • the driving voltage of the fourth sub-pixel is equal to the common voltage of the stereoscopic display device.
  • the beneficial effects of the present invention are: different from the prior art, the stereoscopic display device and the driving method thereof of the present invention keep the display of the dark state of the fourth sub-pixel region during the scanning process by providing a constant driving voltage, which is equivalent to increasing
  • the width of the black matrix increases the vertical viewing angle of the stereoscopic display device without sacrificing the aperture ratio, thereby increasing the viewable range of the stereoscopic display device and improving the user experience.
  • FIG. 1 is a schematic structural view of a stereoscopic display device of the present invention
  • FIG. 2 is a schematic structural view of a display panel in a stereoscopic display device of the present invention
  • Figure 3 is a schematic side view of the display panel of Figure 2;
  • FIG. 4 is a schematic structural view of the first substrate of FIG. 3;
  • Figure 5 is a flow chart showing a driving method of the stereoscopic display device of the present invention.
  • Fig. 6 is a schematic view showing the driving effect of the driving method of the stereoscopic display device of the present invention.
  • FIG. 1 is a schematic structural view of a stereoscopic display device of the present invention
  • FIG. 2 is a schematic structural view of a display panel in the stereoscopic display device of the present invention.
  • the stereoscopic display device of the present invention includes a display panel 11 and a phase difference plate 12.
  • the phase difference plate 12 is provided on one side of the light-emitting direction of the display panel 11, and is disposed in parallel with the display panel 11. It should be noted that the stereoscopic display device is adapted to allow an observer to wear a pair of glasses 13 having lenses having orthogonal polarization directions.
  • the display panel 11 can be a horizontal row of pixel structures or a vertical (Tri-gate) pixel structure. Wherein, in the horizontal row pixel structure, the sub-pixel units are arranged horizontally; in the vertical row pixel structure, the sub-pixel units are arranged vertically.
  • the vertical pixel structure can reduce the number of expensive source drivers in the display panel 11 compared to the horizontal pixel structure (Source) IC), cost saving, and thus the display panel 11 of the vertical pixel structure is more popular in stereoscopic display devices. Therefore, in the present invention, the display panel 11 is preferably a display panel having a vertical row of pixel structures.
  • FIG. 2 is a schematic structural view of a display panel 11 employing a vertical pixel structure in a stereoscopic display device according to the present invention.
  • the display panel 11 includes a plurality of pixel units arranged in a matrix, and a plurality of data lines D1 and D2 arranged in parallel. ..., DN and a plurality of scanning lines G1, G2, ..., GL arranged along the direction perpendicular to the data lines D1, D2, ..., DN.
  • Each of the pixel units includes four sub-pixel units R, G, B, and Y that are sequentially electrically connected to the same data line.
  • Multiple scan lines G1, G2, ..., GL is connected to the gate driver 21, and the gate driver 21 is for supplying a scan voltage to a plurality of R, G, B, and Y sub-pixel units.
  • Multiple data lines D1, D2, ..., DN is connected to the source driver 22, and the source driver 22 is for supplying driving voltages to a plurality of R, G, B, and Y sub-pixel units.
  • FIG. 3 is a schematic side view of the display panel 11 shown in FIG.
  • the structure of each pixel unit in the display panel 11 is similar, the structure of the display panel 11 will be further described below by taking one of the pixel units as an example.
  • the display panel 11 includes a first substrate 31, a second substrate 32, and a liquid crystal layer (not shown) sandwiched between the first substrate 31 and the second substrate 32.
  • each of the pixel units in the display panel 11 includes four sub-pixel electrodes 331, 341, 351, and 361 disposed on the first substrate 31, and four color resist regions R disposed on the second substrate 32. (Red, red), G (Green, green), B (Blue, blue), and Y (Yellow, yellow) and a black matrix 37 disposed between two adjacent color resisting regions.
  • the first color resisting region R is disposed corresponding to the first sub-pixel electrode 331 to form a first sub-pixel region 33; the second color resisting region G is disposed corresponding to the second sub-pixel electrode 341 to form a second sub-pixel region. 34; the third color resistive region B is disposed corresponding to the third sub-pixel electrode 351 to form a third sub-pixel region 35; the fourth color resisting region Y is disposed corresponding to the fourth sub-pixel electrode 361 to form a fourth sub-pixel region 36.
  • a black matrix 37 is provided between each. Further, a black matrix 37 is also provided between adjacent pixel units.
  • the first sub-pixel region 33 is a red sub-pixel region
  • the second sub-pixel region 34 is a green sub-pixel region
  • the third sub-pixel region 35 is a blue sub-pixel region
  • the fourth The sub-pixel area 36 is a yellow sub-pixel area.
  • those skilled in the art can completely set the fourth sub-pixel region 36 as a white pixel region.
  • the first substrate 31 is provided with a data line 311, a first scan line 332, a second scan line 342, and a third a scan line 352 and a fourth scan line 362; and a first TFT switch 333, a second TFT switch 343, a third TFT switch 353, and a fourth TFT switch 363.
  • the gate of the first TFT switch 333 is connected to the gate driver 21 through the first scan line 332, and the drain of the first TFT switch 333 is connected to the first pixel electrode 331.
  • the gate of the second TFT switch 343 is connected to the gate driver 21 through the second scan line 342, and the drain of the second TFT switch 343 is connected to the second pixel electrode 341.
  • the gate of the third TFT switch 353 is connected to the gate driver 21 through the third scan line 352, and the drain of the third TFT switch 353 is connected to the third pixel electrode 351.
  • the gate of the fourth TFT switch 363 is connected to the gate driver 21 through the fourth scan line 362, and the drain of the fourth TFT switch 363 is connected to the fourth pixel electrode 361.
  • the source of the first TFT switch 333, the source of the second TFT switch 343, the source of the third TFT switch 353, and the source of the fourth TFT switch 363 are all connected to the source driver 22 via the data line 311.
  • Fig. 5 is a flow chart showing a driving method of the stereoscopic display device of the present invention. As shown in FIG. 5, the driving method of the stereoscopic display device disclosed by the present invention includes the following steps:
  • Step 401 sequentially scanning the first sub-pixel region 33, the second sub-pixel region 34, the third sub-pixel region 35, and the fourth sub-pixel region 36;
  • Step 402 During the scanning of the fourth sub-pixel region 36, the source driver 22 provides a constant driving voltage such that the fourth sub-pixel region 36 remains in a dark state during scanning.
  • the gate driver 21 supplies the scan voltage to the gate of the fourth TFT switch 363 through the fourth scan line 362
  • the four TFT switch 363 is turned on, and the source driver 22 supplies a constant voltage to the fourth pixel electrode 361 to keep the fourth pixel region 36 in a dark state during scanning, by the first pixel region 33 and the second pixel region 34.
  • the third pixel area 35 outputs an optical signal.
  • the driving voltage supplied from the source driver 22 to the fourth pixel electrode 361 is preferably equal to the common voltage of the stereoscopic display device.
  • FIG. 6 is a schematic diagram showing the driving effect of the driving method of the stereoscopic display device of the present invention.
  • the optical signals are output by the first pixel region 33, the second pixel region 34, the third pixel region 35, and the fourth pixel region 36.
  • the fourth sub-pixel region that keeps displaying the dark state during the scanning process is equivalent to substantially increasing the width of the black matrix, so that it is not Under the premise of sacrificing the aperture ratio, the vertical viewing angle of the stereoscopic display device is increased, thereby increasing the viewable range of the stereoscopic display device and improving the user experience.

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Abstract

本发明公开了一种立体显示装置及其驱动方法。该立体显示装置包括多个矩阵设置的像素单元、栅极驱动器以及源极驱动器。其中，在第四子像素区域（36）的扫描过程中，源极驱动器提供恒定的驱动电压使得第四子像素区域（36）在扫描过程中保持显示暗态。通过以上方式，该立体显示装置等价于增加了黑矩阵的宽度，以在不牺牲开口率的前提下，增加立体显示装置的垂直视角。

Description

立体显示装置及其驱动方法
【技术领域】
本发明涉及立体显示领域，特别是涉及一种立体显示装置及其驱动方法。
【背景技术】
现有技术的立体显示装置通常采用并行式实现立体显示，其基本工作原理是在显示面板的出光方向上，设置一块相位差板，利用相位差板上不同区域产生不同的相位延迟，从而使不同像素的光以不同偏振方向出射，让佩戴偏光眼镜的观看者观察到立体影像。
然而，由于现有技术的立体显示装置存在左、右眼图像之间的串扰，导致立体显示装置存在垂直视角较小的缺点。现有技术中，可通过增加黑矩阵（Black Matrix，BM）的宽度来增加立体显示装置的垂直视角，但是这会导致立体显示装置的开口率下降，影响整体的显示品质。
因此，需要提供一种立体显示装置及其驱动方法，以解决上述技术问题。
【发明内容】
本发明主要解决的技术问题是提供一种立体显示装置及其驱动方法，使得第四子像素区域保持显示暗态，进而增加了立体显示装置的垂直视角。
为解决上述技术问题，本发明采用的一个技术方案是：提供一种立体显示装置的驱动方法，立体显示装置包括多个矩阵设置的像素单元，每一像素单元包括第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域；栅极驱动器，用于为多个子像素区域提供扫描电压；源极驱动器，用于为多个子像素区域提供驱动电压；其中，驱动方法包括：依序扫描第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域；在第四子像素区域的扫描过程中，源极驱动器提供恒定的驱动电压使得第四子像素区域在扫描过程中保持显示暗态，其中，驱动电压等于立体显示装置的公共电压，第一子像素区域、第二子像素区域和第三子像素区域分别为：红色子像素区域、绿色子像素区域以及蓝色子像素区域，第四子像素区域为白色或黄色像素区域。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种立体显示装置，其包括：多个矩阵设置的像素单元，其中每一像素单元包括第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域；栅极驱动器，用于为多个子像素区域提供扫描电压，以依序扫描第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域；源极驱动器，用于为多个子像素区域提供驱动电压；其中，在第四子像素区域的扫描过程中，源极驱动器提供恒定的驱动电压使得第四子像素区域在扫描过程中保持显示暗态。
其中，每一像素单元包括：设置在第一基板上四个子像素电极；以及设置在第二基板上的四个色阻区以及设置于二相邻色阻区之间的黑矩阵；其中，第一色阻区与第一子像素电极对应设置，以形成第一子像素区域；第二色阻区与第二子像素电极对应设置，以形成第二子像素区域；第三色阻区与第三子像素电极对应设置，以形成第三子像素区域；第四色阻区与第四子像素电极对应设置，以形成第四子像素区域。
其中，每一像素单元还包括：设置在第一基板上的数据线、四条扫描线和四个TFT开关；其中，扫描线用于提供扫描电压，数据线用于传输驱动电压；第一TFT开关的栅极与第一扫描线连接，第一TFT开关的源极与数据线连接，第一TFT开关的漏极与第一像素电极连接；第二TFT开关的栅极与第二扫描线连接，第二TFT开关的源极与数据线连接，第二TFT开关的漏极与第二像素电极连接；第三TFT开关的栅极与第三扫描线连接，第三TFT开关的源极与数据线连接，第三TFT开关的漏极与第三像素电极连接；第四TFT开关的栅极与第四扫描线连接，第四TFT开关的源极与数据线连接，第四TFT开关的漏极与第四像素电极连接。
其中，第一子像素区域、第二子像素区域和第三子像素区域分别为：红色子像素区域、绿色子像素区域以及蓝色子像素区域，第四子像素区域为白色或黄色像素区域。
其中，第四子像素的驱动电压等于立体显示装置的公共电压。
为解决上述技术问题，本发明采用的另一个技术方案是：提供一种立体显示装置的驱动方法，立体显示装置包括多个矩阵设置的像素单元，每一像素单元包括第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域；栅极驱动器，用于为多个子像素区域提供扫描电压；源极驱动器，用于为多个子像素区域提供驱动电压；其中，驱动方法包括：依序扫描第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域；其中，在第四子像素区域的扫描过程中，源极驱动器提供恒定的驱动电压使得第四子像素区域在扫描过程中保持显示暗态。
其中，每一像素单元包括：设置在第一基板上的四个子像素电极；以及设置在第二基板上的四个色阻区以及设置于二相邻色阻区之间的黑矩阵；其中，将第一色阻区与第一子像素电极对应设置，以形成第一子像素区域；将第二色阻区与第二子像素电极对应设置，以形成第二子像素区域；将第三色阻区与第三子像素电极对应设置，以形成第三子像素区域；将第四色阻区与第四子像素电极对应设置，以形成第四子像素区域。
其中，每一像素单元还包括：设置在第一基板上的数据线、四条扫描线和四个TFT开关；其中，扫描线用于提供扫描电压，数据线用于传输驱动电压；第一TFT开关的栅极与第一扫描线连接，第一TFT开关的源极与数据线连接，第一TFT开关的漏极与第一像素电极连接；第二TFT开关的栅极与第二扫描线连接，第二TFT开关的源极与数据线连接，第二TFT开关的漏极与第二像素电极连接；第三TFT开关的栅极与第三扫描线连接，第三TFT开关的源极与数据线连接，第三TFT开关的漏极与第三像素电极连接；第四TFT开关的栅极与第四扫描线连接，第四TFT开关的源极与数据线连接，第四TFT开关的漏极与第四像素电极连接。
其中，第一子像素区域、第二子像素区域和第三子像素区域分别为：红色子像素区域、绿色子像素区域以及蓝色子像素区域，第四子像素区域为白色或黄色像素区域。
其中，第四子像素的驱动电压等于立体显示装置的公共电压。
本发明的有益效果是：区别于现有技术的情况，本发明的立体显示装置及其驱动方法通过提供恒定的驱动电压使得第四子像素区域在扫描过程中保持显示暗态，等价于增加黑矩阵的宽度，以在不牺牲开口率的前提下，增加立体显示装置的垂直视角，进而增加立体显示装置的可观看范围，提高用户的体验效果。
【附图说明】
为了更清楚地说明本发明实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本发明的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。其中：
图1是本发明立体显示装置的结构示意图；
图2是本发明立体显示装置中显示面板的结构示意图；
图3是图2中显示面板侧视的结构示意图；
图4是图3中第一基板的结构示意图；
图5是本发明立体显示装置的驱动方法的流程图；
图6是本发明的立体显示装置的驱动方法的驱动效果示意图。
【具体实施方式】
请参见图1，图1是本发明的立体显示装置的结构示意图，图2是本发明的立体显示装置中显示面板的结构示意图。如图1所示，本发明的立体显示装置包括显示面板11及相位差板12。
在本发明中，相位差板12设置在显示面板11的出光方向一侧，且与显示面板11平行间隔设置。需要说明的是，该立体显示装置适于让观察者佩戴一具有二偏振方向正交的镜片的眼镜13观看。
其中，显示面板11可为横排像素结构或是竖排（Tri-gate）像素结构。其中，横排像素结构中，子像素单元（sub-pixel）是横着排布；竖排像素结构中，子像素单元是竖着排布。
与横排像素结构相比，竖排像素结构可减少显示面板11中价格较为昂贵的源极驱动器的使用数量（Source IC），节约成本，因而竖排像素结构的显示面板11在立体显示装置中的应用更为普遍。因此，本发明中，显示面板11优选为具有竖排像素结构的显示面板。
图2是本发明所揭示的立体显示装置中，采用竖排像素结构的显示面板11的结构示意图。
如图2所示，显示面板11包括多个呈矩阵分布的像素单元、平行间隔设置的多条数据线D1 , D2 , …，DN以及沿垂直于数据线D1 , D2 , …，DN方向设置的多条扫描线G1 , G2 , …，GL。
其中，如图中虚线框所示，每个像素单元包括依序电连接在同一条数据线上的R、G、B、Y四个子像素单元。
多条扫描线G1 , G2 , …，GL连接于栅极驱动器21，栅极驱动器21用于为多个R、G、B、Y子像素单元提供扫描电压。
多条数据线D1 , D2 , …，DN连接于源极驱动器22，源极驱动器22用于为多个R、G、B、Y子像素单元提供驱动电压。
请再参见图3，图3是图2中所示的显示面板11的侧视的结构示意图。本发明中，由于显示面板11中每个像素单元的结构是类似的，下文以其中一个像素单元为例对显示面板11的结构做进一步说明。
如图3所示，显示面板11包括：相对设置的第一基板31、第二基板32以及夹持在第一基板31和第二基板32之间的液晶层（图未示）。
在本实施例中，显示面板11中的每个像素单元包括：设置在第一基板31上的四个子像素电极331、341、351以及361、设置在第二基板32上四个色阻区R（Red，红色）、G（Green，绿色）、B（Blue，蓝色）以及Y（Yellow，黄色）以及设置在二相邻色阻区之间的黑矩阵37。
其中，第一色阻区R与第一子像素电极331对应设置，以形成第一子像素区域33；第二色阻区G与第二子像素电极341对应设置，以形成第二子像素区域34；第三色阻区B与第三子像素电极351对应设置，以形成第三子像素区域35；第四色阻区Y与第四子像素电极361对应设置，以形成第四子像素区域36。
进一步的，在第一子像素区域33和第二子像素区域34之间、第二子像素区域34与第三子像素区域35之间、第三子像素区域35与第四子像素区域36之间均设置有黑矩阵37。此外，在相邻的像素单元之间也设置有黑矩阵37。
值得注意的是，在本实施例中，第一子像素区域33为红色子像素区域，第二子像素区域34为绿色子像素区域，第三子像素区域35为蓝色子像素区域，第四子像素区域36为黄色子像素区域。但在其他实施例中，本领域的技术人员完全可以将第四子像素区域36设置为白色像素区域。
图4是图3中第一基板31的结构示意图，如图4所示，在本实施例中，第一基板31设置有数据线311、第一扫描线332、第二扫描线342、第三扫描线352、第四扫描线362；以及第一TFT开关333、第二TFT开关343、第三TFT开关353以及第四TFT开关363。
其中，第一TFT开关333的栅极通过第一扫描线332与栅极驱动器21连接，第一TFT开关333的漏极与第一像素电极331连接。
第二TFT开关343的栅极通过第二扫描线342与栅极驱动器21连接，第二TFT开关343的漏极与第二像素电极341连接。
第三TFT开关353的栅极通过第三扫描线352与栅极驱动器21连接，第三TFT开关353的漏极与第三像素电极351连接。
第四TFT开关363的栅极通过第四扫描线362与栅极驱动器21连接，第四TFT开关363的漏极与第四像素电极361连接。
第一TFT开关333的源极、第二TFT开关343的源极、第三TFT开关353的源极以及第四TFT开关363的源极均通过数据线311与源极驱动器22连接。
图5是本发明立体显示装置的驱动方法的流程图。如图5所示，本发明所揭示的立体显示装置的驱动方法包括以下步骤：
步骤401：依序扫描第一子像素区域33、第二子像素区域34、第三子像素区域35和第四子像素区域36；
步骤402：在第四子像素区域36的扫描过程中，源极驱动器22提供恒定的驱动电压，使得第四子像素区域36在扫描过程中保持显示暗态。
具体而言，在本实施例中，显示面板11从2D显示模式切换到3D显示模式后，当栅极驱动器21通过第四扫描线362向第四TFT开关363的栅极提供扫描电压时，第四TFT开关363导通，源极驱动器22提供恒定的电压给第四像素电极361，以使第四像素区域36在扫描过程中保持显示暗态，由第一像素区域33、第二像素区域34和第三像素区域35输出光讯号。
其中，源极驱动器22为第四像素电极361提供的驱动电压优选为等于立体显示装置的公共电压。
请再参见图6，图6是本发明立体显示装置的驱动方法的驱动效果示意图。
如图6所示，采用本发明所揭示的立体显示装置的驱动方法，从2D显示模式切换到3D显示模式后，由第一像素区域33、第二像素区域34和第三像素区域35输出光讯号，第四子像素区域36在扫描过程中保持显示暗态。
而根据现有的驱动方法，从2D显示模式切换到3D显示模式后，由第一像素区域33、第二像素区域34、第三像素区域35和第四像素区域36输出光讯号。
综上所述，与现有驱动方法的显示效果相比，本发明中，在扫描过程中一直保持显示暗态的第四子像素区域等价于将黑矩阵的宽度大幅增加，因而可在不牺牲开口率的前提下，增加立体显示装置的垂直视角，进而增加立体显示装置的可观看范围，提高用户的体验效果。
以上所述仅为本发明的实施例，并非因此限制本发明的专利范围，凡是利用本发明说明书及附图内容所作的等效结构或等效流程变换，或直接或间接运用在其他相关的技术领域，均同理包括在本发明的专利保护范围内。

Claims (11)

  1. 一种立体显示装置的驱动方法，其中，所述立体显示装置包括多个矩阵设置的像素单元，每一所述像素单元包括第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域；
    栅极驱动器，用于为多个所述子像素区域提供扫描电压；
    源极驱动器，用于为多个所述子像素区域提供驱动电压；
    其中，所述驱动方法包括：
    依序扫描所述第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域；
    在所述第四子像素区域的扫描过程中，所述源极驱动器提供提供恒定的驱动电压使得所述第四子像素区域在所述扫描过程中保持显示暗态，其中，所述驱动电压等于所述立体显示装置的公共电压，所述第一子像素区域、第二子像素区域和第三子像素区域分别为：红色子像素区域、绿色子像素区域以及蓝色子像素区域，所述第四子像素区域为白色或黄色像素区域。
  2. 一种立体显示装置，其中，所述立体显示装置包括：
    多个矩阵设置的像素单元，其中每一所述像素单元包括第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域；
    栅极驱动器，用于为多个所述子像素区域提供扫描电压，以依序扫描所述第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域；
    源极驱动器，用于为多个所述子像素区域提供驱动电压；
    其中，在所述第四子像素区域的扫描过程中，所述源极驱动器提供恒定的驱动电压使得所述第四子像素区域在所述扫描过程中保持显示暗态。
  3. 根据权利要求2所述的立体显示装置，其中，每一所述像素单元包括：
    设置在第一基板上四个子像素电极；以及
    设置在第二基板上的四个色阻区以及设置于二相邻色阻区之间的黑矩阵；
    其中，第一色阻区与第一子像素电极对应设置，以形成所述第一子像素区域；
    第二色阻区与第二子像素电极对应设置，以形成所述第二子像素区域；
    第三色阻区与第三子像素电极对应设置，以形成所述第三子像素区域；
    第四色阻区与第四子像素电极对应设置，以形成所述第四子像素区域。
  4. 根据权利要求3所述的立体显示装置，其中，每一所述像素单元还包括：
    设置在所述第一基板上的数据线、四条扫描线和四个TFT开关；
    其中，所述扫描线用于提供所述扫描电压，所述数据线用于传输所述驱动电压；
    第一TFT开关的栅极与第一扫描线连接，所述第一TFT开关的源极与所述数据线连接，所述第一TFT开关的漏极与所述第一像素电极连接；
    第二TFT开关的栅极与第二扫描线连接，所述第二TFT开关的源极与所述数据线连接，所述第二TFT开关的漏极与所述第二像素电极连接；
    第三TFT开关的栅极与第三扫描线连接，所述第三TFT开关的源极与所述数据线连接，所述第三TFT开关的漏极与所述第三像素电极连接；
    第四TFT开关的栅极与第四扫描线连接，所述第四TFT开关的源极与所述数据线连接，所述第四TFT开关的漏极与所述第四像素电极连接。
  5. 根据权利要求2所述的立体显示装置，其中，所述第一子像素区域、第二子像素区域和第三子像素区域分别为：红色子像素区域、绿色子像素区域以及蓝色子像素区域，所述第四子像素区域为白色或黄色像素区域。
  6. 根据权利要求2所述的立体显示装置，其中，所述第四子像素的驱动电压等于所述立体显示装置的公共电压。
  7. 一种立体显示装置的驱动方法，其中，所述立体显示装置包括多个矩阵设置的像素单元，每一所述像素单元包括第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域；
    栅极驱动器，用于为多个所述子像素区域提供扫描电压；
    源极驱动器，用于为多个所述子像素区域提供驱动电压；
    其中，所述驱动方法包括：
    依序扫描所述第一子像素区域、第二子像素区域、第三子像素区域和第四子像素区域；
    其中，在所述第四子像素区域的扫描过程中，所述源极驱动器提供恒定的驱动电压使得所述第四子像素区域在所述扫描过程中保持显示暗态。
  8. 根据权利要求7所述的驱动方法，其中，每一所述像素单元包括：
    设置在第一基板上的四个子像素电极；以及
    设置在第二基板上的四个色阻区以及设置于二相邻色阻区之间的黑矩阵；
    其中，将第一色阻区与第一子像素电极对应设置，以形成所述第一子像素区域；
    将第二色阻区与第二子像素电极对应设置，以形成所述第二子像素区域；
    将第三色阻区与第三子像素电极对应设置，以形成所述第三子像素区域；
    将第四色阻区与第四子像素电极对应设置，以形成所述第四子像素区域。
  9. 根据权利要求8所述的驱动方法，其中，每一所述像素单元还包括：
    设置在所述第一基板上的数据线、四条扫描线和四个TFT开关；
    其中，所述扫描线用于提供所述扫描电压，所述数据线用于传输所述驱动电压；
    第一TFT开关的栅极与第一扫描线连接，所述第一TFT开关的源极与所述数据线连接，所述第一TFT开关的漏极与所述第一像素电极连接；
    第二TFT开关的栅极与第二扫描线连接，所述第二TFT开关的源极与所述数据线连接，所述第二TFT开关的漏极与所述第二像素电极连接；
    第三TFT开关的栅极与第三扫描线连接，所述第三TFT开关的源极与所述数据线连接，所述第三TFT开关的漏极与所述第三像素电极连接；
    第四TFT开关的栅极与第四扫描线连接，所述第四TFT开关的源极与所述数据线连接，所述第四TFT开关的漏极与所述第四像素电极连接。
  10. 根据权利要求7所述的驱动方法，其中，所述第一子像素区域、第二子像素区域和第三子像素区域分别为：红色子像素区域、绿色子像素区域以及蓝色子像素区域，所述第四子像素区域为白色或黄色像素区域。
  11. 根据权利要求7所述的驱动方法，其中，所述第四子像素的驱动电压等于所述立体显示装置的公共电压。
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