WO2015100745A1 - 改善显示3d影像发生闪烁的液晶显示器 - Google Patents

改善显示3d影像发生闪烁的液晶显示器 Download PDF

Info

Publication number
WO2015100745A1
WO2015100745A1 PCT/CN2014/070158 CN2014070158W WO2015100745A1 WO 2015100745 A1 WO2015100745 A1 WO 2015100745A1 CN 2014070158 W CN2014070158 W CN 2014070158W WO 2015100745 A1 WO2015100745 A1 WO 2015100745A1
Authority
WO
WIPO (PCT)
Prior art keywords
control signal
pixel
sub
switch
signal
Prior art date
Application number
PCT/CN2014/070158
Other languages
English (en)
French (fr)
Inventor
李蒙
王金杰
Original Assignee
深圳市华星光电技术有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 深圳市华星光电技术有限公司 filed Critical 深圳市华星光电技术有限公司
Priority to US14/235,814 priority Critical patent/US9368076B2/en
Publication of WO2015100745A1 publication Critical patent/WO2015100745A1/zh

Links

Images

Classifications

    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3607Control 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
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/001Control 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
    • G09G3/003Control 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3648Control of matrices with row and column drivers using an active matrix
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00Command of the display device
    • G09G2310/02Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264Details of driving circuits
    • G09G2310/027Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00Command of the display device
    • G09G2310/02Addressing, scanning or driving the display screen or processing steps related thereto
    • G09G2310/0264Details of driving circuits
    • G09G2310/0297Special arrangements with multiplexing or demultiplexing of display data in the drivers for data electrodes, in a pre-processing circuitry delivering display data to said drivers or in the matrix panel, e.g. multiplexing plural data signals to one D/A converter or demultiplexing the D/A converter output to multiple columns
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0209Crosstalk 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/02Improving the quality of display appearance
    • G09G2320/0247Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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
    • G09G3/36Control 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
    • G09G3/3611Control of matrices with row and column drivers
    • G09G3/3648Control of matrices with row and column drivers using an active matrix
    • G09G3/3659Control of matrices with row and column drivers using an active matrix the addressing of the pixel involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependant on signal of two data electrodes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/356Image reproducers having separate monoscopic and stereoscopic modes
    • H04N13/359Switching between monoscopic and stereoscopic modes

Definitions

  • the present invention relates to a 3D liquid crystal display, and more particularly to a liquid crystal display for improving the occurrence of flicker in a 3D image.
  • the human brain further forms a so-called 3D (3-dimension) image based on the spatial distance difference between the two different perspectives seen by both eyes.
  • the so-called 3D display device is a display device that simulates the field of view of different angles of human eyes, and enables the user to perceive as a 3D image when viewing a 2D display image.
  • the grayscale position is actually white and black mixed color, that is, the first frame is white, the second frame is black, and the cycle is repeated, and the two colors are superimposed and viewed by the human eye. It is the grayscale image.
  • each frame polarity is flipped once.
  • the white image is a positive polarity with a large trans-pressure
  • the black image is a negative polarity with a small cross-voltage. If the image is displayed for a long time, the liquid crystal will be affected by polarization to form an afterimage.
  • One way to improve flicker is to independently control pixel charging and charge sharing. That is to say, in addition to the scan lines, a plurality of drive lines for controlling charge sharing are added corresponding to each line of scan lines. This doubles the number of gate drivers and increases production costs.
  • a liquid crystal display for improving flickering of a display 3D image includes a scan line, a data line, and a pixel unit, the pixel unit including a first sub-pixel and a second sub-pixel, the scan line is used for transmitting A scan signal is used to transmit a gray scale signal.
  • the process of transmitting the scan signal to the pixel unit by the scan line sequentially includes a first time period, a second time period, and a third time period, The first data switch, the first switching unit, and the fourth switching unit, the second data switch, the second switching unit, and the third switching unit when in the first time period And the charge sharing switch is turned off, so that the first sub-pixel displays gray scale according to the gray scale signal; when in the second time period, the second data switch, the second switch unit, and The third switch unit is turned on, and the first data switch, the first switch unit, the fourth switch unit, and the charge sharing switch are turned off, so that the second sub-pixel is in accordance with the gray scale signal. Displaying a gray scale; and when in the third period, the second switching unit, the fourth switching unit, and the charge sharing switch are turned on, and the first switching unit and the third switching unit Close, will be The first sub-pixel is electrically connected to the second sub-pixel.
  • the liquid crystal display when the liquid crystal display is in a two-dimensional image mode, the first control signal and the second control signal are mutually inverted, the third control signal and the fourth control signal Inverted to each other, the fifth control signal and the sixth control signal are inverted from each other.
  • the fourth time period and the fifth time period are continuous.
  • the liquid crystal display when the liquid crystal display is in a three-dimensional image mode, the first control signal and the second control signal are mutually inverted, and the third control signal and the fourth control signal are mutually For inversion.
  • the liquid crystal display of the present invention adds a plurality of switching units in each row of scanning lines without increasing the gate driver.
  • the plurality of switching units are respectively used for controlling charging and charge sharing of the pixel unit, thereby achieving the purpose of independently controlling pixel charging and charge sharing. Therefore, the present invention can improve the flicker problem that occurs in the prior art when displaying 3D images without additionally adding a gate driver.
  • FIG. 1 is a schematic diagram of a liquid crystal display displaying a three-dimensional image according to a first embodiment of the present invention.
  • FIG. 2 is a partial enlarged view of the liquid crystal display panel of FIG. 1.
  • FIG. 2 is a partial enlarged view of the liquid crystal display panel of FIG. 1.
  • FIG. 3 is a timing diagram of the control signal and the charge sharing signal shown in FIG. 2 in a two-dimensional image mode.
  • FIG. 4 is a timing diagram of the control signal and the charge sharing signal shown in FIG. 2 in a three-dimensional image mode.
  • FIG. 5 is a schematic diagram of a liquid crystal display displaying a three-dimensional image according to a second embodiment of the present invention.
  • Fig. 6 is a partial enlarged view of the liquid crystal display panel of Fig. 5;
  • FIG. 8 is a timing chart of the control signal and the charge sharing signal shown in FIG. 6 in a three-dimensional image mode.
  • FIG. 1 is a schematic diagram of a liquid crystal display 100 displaying a three-dimensional image according to a first embodiment of the present invention.
  • the liquid crystal display 100 includes a processing unit 102, a plurality of source drivers 106, a plurality of gate drivers 108, and a timing controller (timing)
  • the controller 112 a control signal generator 114, an input interface 116, a data control generator 118, a charge sharing signal source 115, and a liquid crystal display panel 110.
  • the liquid crystal display panel 110 includes a plurality of pixel units 130 and a substrate 140.
  • the processing unit 102 can be a central processing unit of a personal computer or a notebook computer for generating a plurality of frames of two-dimensional or three-dimensional image signals.
  • the input interface 116 can be an input device controlled by the user, such as a button disposed on the liquid crystal display 100 or a menu displayed on the liquid crystal display 100, and can select a 2D/3D image activation signal according to a user input command.
  • the processing unit 102 is an electrical connection input interface 116 for determining to output a plurality of two-dimensional or three-dimensional image signals to the timing controller 112 according to the two-dimensional/three-dimensional image activation signal generated by the input interface 116.
  • the control signal generator 114 is electrically connected to the processing unit 102 for generating different control signals GW1-GW4 according to the two-dimensional/three-dimensional image activation signals.
  • the data control signal generator 118 is electrically coupled to the processing unit 102 for generating different data control signals DO and DE according to the two-dimensional/three-dimensional image enable signal.
  • the charge sharing signal source 115 is used to generate different charge sharing signals GS1-GSm.
  • the pixel units 130 of each row correspond one-to-one to the charge sharing signal signals GS1-GSm.
  • the timing controller 112 is electrically connected to the processing unit 102 for generating a frequency pulse signal according to the two-dimensional or three-dimensional image signal to the gate driver 108, and also converting the received two-dimensional or three-dimensional image signal into a two-dimensional or three-dimensional data signal.
  • the gate driver 108 is configured to output a scan signal according to the frequency pulse signal
  • the source driver 106 is configured to convert the data signal into gray scale signals of different voltage levels.
  • the source driver 106 and the gate driver 108 are disposed on a flexible circuit board (not shown) (Chip On film, COF), or on the substrate 140 (Chip of Glass, COG), then electrically connected through a flexible circuit board.
  • the gate driver 108 sequentially transmits the scan signals to each row of the pixel units 130 through the scan lines G1 to Gm.
  • the pixel unit 130 of each row receives the scan signal, different gray scales are displayed according to the gray scale signals transmitted from the source driver 106 through the data lines D1 to Dn.
  • FIG. 2 is a partial enlarged view of the liquid crystal display panel 110 of FIG. 1.
  • the plurality of pixel units 130 of the liquid crystal display panel 110 are electrically connected to the data lines D1-Dn and the scan lines G1-Gm in a one-to-one manner.
  • Each pixel unit 130 includes a first sub-pixel 131 and a second sub-pixel 132.
  • the first sub-pixel 131 includes a first transistor 1311 and a first pixel electrode 1312.
  • the second sub-pixel 132 includes a second transistor 1321 and a second pixel electrode 1322.
  • the liquid crystal display 100 further includes a plurality of sets of switch units and a plurality of sets of data switches.
  • the pixel unit 130 of each row is electrically connected to one of the switch units, and the pixel unit 130 of each column is electrically connected to one of the data switches.
  • Each set of switching units includes a first switching unit SW1, a second switching unit SW2, a third switching unit SW3, and a fourth switching unit SW4.
  • Each set of data switches includes a first data switch S1 and a second data switch S2. Since the electrical connection relationship of each pixel unit 130 is the same, the following embodiment is described by taking only one of the pixel units 130 as an example.
  • FIG. 3 is a timing diagram of the control signals GW1-GW4 and the charge sharing signals GS1-GS2 shown in FIG. 2 in a two-dimensional image mode.
  • the first data switch S1 is electrically connected to the data line D1 and the first sub-pixel 131 for turning on the data signal transmitted by the data line D1 to the first sub-pixel 131 when receiving the first data control signal DO.
  • the second data switch S2 is electrically connected to the data line D1 and the second sub-pixel 132 for turning on the data signal transmitted by the data line D1 to the second sub-pixel 132 when receiving the second data control signal DE.
  • the first switching unit SW1 is electrically connected to the scan line G1 and the first sub-pixel 131 for turning on the scan signal G1 to the first sub-pixel 131 when receiving the first control signal GW1.
  • the second switching unit SW2 is electrically connected to the fixed voltage Vgl and the first sub-pixel 131 for turning on the fixed voltage Vgl to the first sub-pixel 131 when receiving the second control signal GW2.
  • the third switch unit SW3 is electrically connected to the scan line G1 and the second sub-pixel 132 for turning on the scan signal G1 to the second sub-pixel 132 when receiving the third control signal GW3.
  • the fourth switching unit SW4 is electrically connected to the fixed voltage Vgl and the second sub-pixel 132 for turning on the fixed voltage Vgl to the second sub-pixel 132 when receiving the fourth control signal GW4.
  • the plurality of charge sharing switches CSW are electrically connected to the charge sharing signal source GS1, the first sub-pixel 131, and the second sub-pixel 132, and are configured to electrically connect the first sub-pixel 131 to the second when the charge sharing signal is received.
  • Sub-pixel 132 Preferably, the voltage value of the fixed voltage Vgl must be low enough to turn on the charge sharing switch CSW.
  • the switch units SW1-SW6, the charge sharing switch CSW, and the data switches S1, S2 may be NMOS (N-type Metal oxide semiconductor) or PMOS (P-type metal oxide semiconductor) transistor.
  • the second data control signal DE, the second control signal GW2, and the third control signal GW3 are at a high level, the first data control signal DO, the first control signal GW1, the fourth control signal GW4, and The charge sharing signal GS1 is at a low level.
  • the second data switch S2, the second switch unit SW2, and the third switch unit SW3 are turned on, and the first data switch S1, the first switch unit SW1, the fourth switch unit SW4, and the plurality of charge sharing switches CSW are turned off, so that The second sub-pixel 132 displays the gray scale according to the gray scale signal generated by the source driver 106.
  • the second data control signal DE, the second control signal GW2, and the third control signal GW3 are at a high level, the first data control signal DO, the first control signal GW1, the fourth control signal GW4, and The charge sharing signal GS1 is at a low level.
  • the second data switch S2, the second switch unit SW2, and the third switch unit SW3 are turned on, and the first data switch S1, the first switch unit SW1, the fourth switch unit SW4, and the plurality of charge sharing switches CSW are turned off, so that The second sub-pixel 132 displays the gray scale according to the gray scale signal generated by the source driver 106.
  • the first data switch S1, the first switch unit SW1, the fourth switch unit SW4, and the sixth switch unit SW6 are turned on, the second data switch S2, the second switch unit SW2, the third switch unit SW3, and the fifth switch unit
  • the SW5 and the charge sharing switch CSW are turned off, so that the first sub-pixel 131 displays the gray scale according to the gray scale signal generated by the source driver 106.
  • the second control signal GW2, the fourth control signal GW4, and the fifth control signal GW5 are at a high level, and the first control signal GW1, the third control signal GW3, and the sixth control signal GW6 are in a low state. level.
  • the second switching unit SW2, the fourth switching unit SW4, and the fifth switching unit SW5 are turned on, and the first switching unit SW1, the third switching unit SW3, and the sixth switching unit SW6 are turned off.
  • the source driver 106 does not transmit the gray scale signal to the data line D1, but the fifth switching unit SW5 turns on the scan signal so that the plurality of charge sharing switches CSW are turned on.
  • the second control signal GW2, the fourth control signal GW4, and the sixth control signal GW6 are at a high level, and the first control signal GW1, the third control signal GW3, and the fifth control signal GW5 are in a low state. level.
  • the second switching unit SW2, the fourth switching unit SW4, and the sixth switching unit SW6 are turned on, and the first switching unit SW1, the third switching unit SW3, and the fifth switching unit SW5 are turned off.
  • the source driver 106 does not transmit the gray scale signal to the data line D1. Since the liquid crystal display 200 does not activate the charge sharing function when in the three-dimensional image mode, the sixth switching unit SW6 continuously turns on the fixed voltage in the three-dimensional image mode, so that the plurality of charge sharing switches CSW are continuously turned off.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Control Of Indicators Other Than Cathode Ray Tubes (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)

Abstract

一种改善显示3D影像发生闪烁的液晶显示器。液晶显示器(100)包含一处理单元(102)、数个源极驱动器(106)、数个栅极驱动器(108)、一时序控制器(112),一控制信号产生器(114)、一数据控制产生器(118)、一电荷分享信号源(115)以及以液晶显示面板(110)。另包含多组开关单元和多组数据开关,在每一行像素单元(130)电连接其中一组开关单元。该多个开关单元分别用来控制像素单元(130)的充电和电荷分享,因此达到将像素充电和电荷分享独立控制的目的。因此在没有额外增设栅极驱动器的情形下就可以改善现有技术在显示3D影像时发生的闪烁问题。

Description

改善显示3D影像发生闪烁的液晶显示器 技术领域
本发明涉及一种3D液晶显示器,尤指一种改善显示3D影像发生闪烁的液晶显示器。
背景技术
人类是通过双眼所看到的展望而感知到真实世界的影像。而人类的大脑会进一步根据双眼所看到两个不同角度的展望之间的空间距离差异而形成所谓的3D(3-dimension)影像。所谓的3D显示装置就是模拟人类双眼不同角度的视野,而使得使用者在观看的2D显示影像时,能感知为3D影像的显示装置。
目前的液晶显示器为解决色偏(color shift)问题,通常会利用电荷分享(charge sharing)的设计方式。但在对于可切换2D和3D影像模式的液晶显示器而言,当启用3D影像模式时,电荷分享功能会因帧翻转(frame inversion)的方式失效,导致3D影像出现闪烁(Flicker)现象。
更详细的来讲,液晶显示器在3D影像模式时,灰阶位置实际上为白、黑混色,即第一帧为白色,第二帧为黑色,依次循环,两种颜色叠加后人眼所看到的就是灰阶影像。以帧翻转驱动方式为例,每个帧极性发生一次翻转。白色影像为跨压较大的正极性,黑色影像为跨压较小的负极性,若长时间显示此影像,则液晶将受到极化影响,形成残影。
为解决残影现象,一个比较常用的方法将原先每一帧翻转一次改成每两帧翻转一次。但是这中方式会因同极性第二帧充电饱和度较高导致左右眼亮度不同,闪烁现象仍然难以克服。
为了改善闪烁现象,一个方法是将像素充电和电荷分享功能独立控制。也就是说除了扫描线之外,对应于每一行扫描线还需增设控制电荷分享的多条驱动线。这使得栅极驱动器的数量加倍,生产成本也随之提高。
技术问题
本发明的目的是提供一种改善显示3D影像发生闪烁的液晶显示器,可避免增设额外的栅极驱动器就可以改善现有技术在显示3D影像时发生的闪烁问题。
技术解决方案
根据本发明的实施例,一种改善显示3D影像发生闪烁的液晶显示器包含扫描线、数据线以及像素单元,所述像素单元包含第一子像素以及第二子像素,所述扫描线用来传送扫描信号,所述数据线用来传送灰阶信号。所述液晶显示器另包含:数据控制信号产生器,用来产生第一数据控制信号和第二数据控制信号;控制信号产生器,用来产生第一控制信号、第二控制信号、第三控制信号和第四控制信号;电荷分享信号源,用来产生电荷分享信号;第一数据开关,电性连接所述数据线和所述第一子像素,用来于接收所述第一数据控制信号时,导通所述灰阶信号至所述第一子像素;第二数据开关,电性连接所述数据线和所述第二子像素,用来于接收所述第二数据控制信号时,导通所述灰阶信号至所述第二子像素;第一开关单元,电性连接所述扫描线及所述第一子像素,用来于接收所述第一控制信号时,导通所述扫描信号至所述第一子像素;第二开关单元,电性连接固定电压和所述第一子像素,用来于接收所第二控制信号时,导通所述固定电压至所述第一子像素;第三开关单元,电性连接所述扫描线及所述第二子像素,用来于接收所述第三控制信号时,导通所述扫描信号至所述第二子像素;第四开关单元,电性连接所述固定电压及所述第二子像素,用来于接收所述第四控制信号时,导通所述固定电压至所述第二子像素;电荷分享开关,电性连接所述电荷分享信号源、所述第一子像素和所述第二子像素,用来于接收所述电荷分享信号源而开启时,将所述第一子像素电性连接于所述第二子像素。
根据本发明的实施例,在所述液晶显示器处于二维影像模式下,所述扫描线传送所述扫描信号给所述像素单元的过程依序包含第一时段、第二时段和第三时段,当在所述第一时段时,所述第一数据开关、所述第一开关单元和所述第四开关单元,所述第二数据开关、所述第二开关单元、所述第三开关单元和所述电荷分享开关会关闭,使得所述第一子像素依据所述灰阶信号显示灰阶;当在所述第二时段时,所述第二数据开关、所述第二开关单元和所述第三开关单元会开启,所述第一数据开关、所述第一开关单元、所述第四开关单元和所述电荷分享开关会关闭,使得所述第二子像素依据所述灰阶信号显示灰阶;及当在所述第三时段时,所述第二开关单元、所述第四开关单元和所述电荷分享开关会开启,所述第一开关单元和所述第三开关单元会关闭,将所述第一子像素电性连接于所述第二子像素。
根据本发明的实施例,所述第一时段、所述第二时段和所述第三时段是连续的。
根据本发明的实施例,所述电荷分享信号是所述扫描信号,所述控制信号产生器另用来产生第五控制信号和第六控制信号,所述液晶显示器另包含:第五开关单元,电性连接所述扫描线和所述电荷分享开关,用来于接收所述第五控制信号时,导通所述扫描信号以开启所述电荷分享开关;以及第六开关单元,电性连接所述固定电压,用来于接收所述第六控制信号时,导通所述固定电压以关闭所述电荷分享开关。
根据本发明的实施例,在所述液晶显示器处于二维影像模式下,当在所述第一时段和所述第二时段时,所述第五开关单元会关闭,所述第六开关单元会开启而导通所述固定电压;及当在所述第三时段时,所述第五开关单元会开启而导通所述扫描信号,所述第六开关单元会关闭。
根据本发明的实施例,在所述液晶显示器处于二维影像模式下,所述第一控制信号和所述第二控制信号互为反相,所述第三控制信号和所述第四控制信号互为反相,所述第五控制信号和所述第六控制信号互为反相。
根据本发明的实施例,在所述液晶显示器处于三维影像模式下,在所述液晶显示器处于三维影像模式下,所述第五开关单元会关闭,但所述第六开关单元会关闭。
根据本发明的实施例,在所述液晶显示器处于三维影像模式下,所述扫描线传送所述扫描信号给所述像素单元的过程依序包含第四时段和第五时段,当在所述第四时段时,所述第一开关单元和所述第四开关单元会开启,所述第二开关单元和所述第三开关单元会关闭,使得所述第一子像素依据所述灰阶信号显示灰阶;及当在所述第五时段时,所述第二开关单元和所述第三开关单元会开启,所述第一开关单元和所述第四开关单元会关闭,使得所述第二子像素依据所述灰阶信号显示灰阶。
根据本发明的实施例,所述第四时段和所述第五时段是连续的。
根据本发明的实施例,在所述液晶显示器处于三维影像模式下,所述第一控制信号和所述第二控制信号互为反相,所述第三控制信号和所述第四控制信号互为反相。
有益效果
相较于现有技术,本发明液晶显示器在不增加栅极驱动器的情形下,在每一行扫描线都增设多个开关单元。该多个开关单元分别用来控制像素单元的充电和电荷分享,因此达到将像素充电和电荷分享独立控制的目的。因此本发明在没有额外增设栅极驱动器的情形下就可以改善现有技术在显示3D影像时发生的闪烁问题。
附图说明
图1绘示本发明第一实施例显示三维影像的液晶显示器的示意图。
图2为图1的液晶显示面板的局部放大图。
图3是图2所示的控制信号和电荷分享信号在二维影像模式下的时序图。
图4是图2所示的控制信号和电荷分享信号在三维影像模式下的时序图。
图5绘示本发明第二实施例显示三维影像的液晶显示器的示意图。
图6为图5的液晶显示面板的局部放大图。
图7是图6所示的控制信号和电荷分享信号在二维影像模式下的时序图。
图8是图6所示的控制信号和电荷分享信号在三维影像模式下的时序图。
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之特定实施例。本发明所提到的方向用语,例如”上”、”下”、”前”、”后”、”左”、”右”、”顶”、”底”、”水平”、”垂直”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。
请参阅图1,图1绘示了本发明第一实施例显示三维影像的液晶显示器100的示意图。使用者观看液晶显示器100时,可以切换观看2D或3D影像。液晶显示器100包含一处理单元102、数个源极驱动器106、数个栅极驱动器108、一时序控制器(timing controller)112、一控制信号产生器114、一输入接口116、一数据控制产生器118、一电荷分享信号源115以及一液晶显示面板110。液晶显示面板110包含数个像素单元(pixel)130和一基板140。
处理单元102可以为个人计算机或是笔记本电脑的中央处理器,用来产生数帧二维或三维影像信号。输入接口116可以是用户所控制的输入设备,例如设置于液晶显示器100上的按键或是显示于液晶显示器100上的选单(menu),可依据用户的输入指令选择产生二维/三维影像启动信号。处理单元102是电性连接输入接口116,用来依据输入接口116所产生的二维/三维影像启动信号决定输出数帧二维或三维影像信号予时序控制器112。控制信号产生器114电性连接处理单元102,用于依据二维/三维影像启动信号,产生不同的控制信号GW1-GW4。数据控制信号产生器118电性连接处理单元102,用于依据二维/三维影像启动信号产生不同的数据控制信号DO和DE。电荷分享信号源115用来产生不同的电荷分享信号GS1-GSm。每一行的像素单元130都一对一对应至电荷分享信号信号GS1-GSm。
时序控制器112电性连接处理单元102,用于依据二维或三维影像信号产生频率脉冲信号至栅极驱动器108,也会将其接收的二维或三维影像信号转换成二维或三维数据信号。栅极驱动器108用于根据频率脉冲信号输出扫描信号,源极驱动器106用来将上述数据信号转换成不同电压准位的灰阶信号。源极驱动器106以及栅极驱动器108设置于软性电路板(未图标)上(Chip on film,COF),或是设置在基板140上(Chip of glass,COG),然后再透过软性电路板电连接。栅极驱动器108通过扫描线G1~Gm依序传送扫描信号至每一行像素单元130。当每一行的像素单元130接收到扫描信号后,会根据源极驱动器106通过数据线D1~Dn传来的灰阶信号显示不同灰阶。
请参阅图2,图2为图1的液晶显示面板110的局部放大图。液晶显示面板110的数个像素单元130是以一对一的方式电性连接到数据线D1-Dn和扫描线G1-Gm。每一像素单元130包含第一子像素131和第二子像素132。第一子像素131包含第一晶体管1311和第一像素电极1312。第二子像素132包含第二晶体管1321和第二像素电极1322。液晶显示器100另包含多组开关单元和多组数据开关。每一行的像素单元130是电性连接其中一组开关单元,每一列的像素单元130是电性连接其中一组数据开关。每一组开关单元包含第一开关单元SW1、第二开关单元SW2、第三开关单元SW3和第四开关单元SW4。每一组数据开关包含第一数据开关S1和第二数据开关S2。由于每一像素单元130的电性连接关系是相同的,因此以下实施例仅以其中一个像素单元130为例说明。
请一并参阅图2和图3。图3是图2所示的控制信号GW1-GW4和电荷分享信号GS1-GS2在二维影像模式下的时序图。第一数据开关S1电性连接数据线D1和第一子像素131,用来于接收第一数据控制信号DO时,导通数据线D1传送的数据信号至第一子像素131。第二数据开关S2电性连接数据线D1和第二子像素132,用来于接收第二数据控制信号DE时,导通数据线D1传送的数据信号至第二子像素132。第一开关单元SW1电性连接扫描线G1及第一子像素131,用来于接收第一控制信号GW1时,导通扫描信号G1至第一子像素131。第二开关单元SW2电性连接固定电压Vgl和第一子像素131,用来于接收第二控制信号GW2时,导通固定电压Vgl至第一子像素131。第三开关单元SW3电性连接扫描线G1及第二子像素132,用来于接收第三控制信号GW3时,导通扫描信号G1至第二子像素132。第四开关单元SW4电性连接固定电压Vgl和第二子像素132,用来于接收第四控制信号GW4时,导通固定电压Vgl至第二子像素132。多个电荷分享开关CSW电性连接电荷分享信号源GS1、第一子像素131和第二子像素132,用来于接收电荷分享信号而开启时,将第一子像素131电性连接于第二子像素132。较佳地,固定电压Vgl的电压值必须是不足以开启电荷分享开关CSW的低电平。开关单元SW1-SW6、电荷分享开关CSW和数据开关S1、S2可以是NMOS(N-type metal oxide semiconductor)或PMOS(P-type metal oxide semiconductor)晶体管。
当用户通过输入接口116输入指令以控制液晶显示器100处于二维影像模式时,此时处理单元102会根据该输入指令产生的二维影像启动信号,控制时序控制器112、控制信号产生器114和数据控制信号产生器118提供二维影像所需的相关信号。扫描线G1~Gn会依序逐行传送扫描信号给每一行像素单元130,每一扫描线G1~Gn传送扫描信号给像素单元130的过程依序包含第一时段T1、第二时段T2和第三时段T3,第一时段T1、第二时段T2和第三时段T3是连续的。当液晶显示器100的扫描频率(frame rate)是60Hz,则第一时段T1、第二时段T2和第三时段T3的总和可以为8.3ms(1/60)。
以第一行扫描线G1为例,当在第一时段T1时,第一数据控制信号DO、第一控制信号GW1和第四控制信号GW4处于高电平,第二数据控制信号DE、第二控制信号GW2、第三控制信号GW3和电荷分享信号GS1处于低电平。此时第一数据开关S1、第一开关单元SW1和第四开关单元SW4会开启,第二数据开关S2、第二开关单元SW2、第三开关单元SW3、第五开关单元SW5和多个电荷分享开关CSW会关闭,使得第一子像素131依据源极驱动器106产生的灰阶信号显示灰阶。
当在第二时段T2时,第二数据控制信号DE、第二控制信号GW2和第三控制信号GW3处于高电平,第一数据控制信号DO、第一控制信号GW1、第四控制信号GW4和电荷分享信号GS1处于低电平。此时第二数据开关S2、第二开关单元SW2和第三开关单元SW3会开启,第一数据开关S1、第一开关单元SW1、第四开关单元SW4和多个电荷分享开关CSW会关闭,使得第二子像素132依据源极驱动器106产生的灰阶信号显示灰阶。
当在第三时段T3时,第二控制信号GW2、第四控制信号GW4和电荷分享信号GS1处于高电平,第一控制信号GW1和第三控制信号GW3处于低电平。此时第二开关单元SW2、第四开关单元SW4和多个电荷分享开关CSW会开启,第一开关单元SW1和第三开关单元SW3会关闭。在这个时候,源极驱动器106并不会传输灰阶信号至数据线D1,但是第一像素电极1312和第二像素电极1322会因为多个电荷分享开关CSW开启而同时处于同一电平而达到电荷分享的目的。
请参阅图2和图4,图4是图2所示的控制信号GW1-GW4和电荷分享信号GS1-GS2在三维影像模式下的时序图。当用户通过输入接口116输入指令以控制液晶显示器100处于三维影像模式时,此时处理单元102会根据该输入指令产生的三维影像启动信号,控制时序控制器112、控制信号产生器114和数据控制信号产生器118提供三维影像所需的相关信号。扫描线G1~Gn会依序逐行传送扫描信号给每一行像素单元130,每一扫描线G1~Gn传送扫描信号给像素单元130的过程依序包含第四时段T4、第五时段T5和第六时段T6,第四时段T4、第五时段T5和第六时段T6是连续的。
当在第四时段T4时,第一数据控制信号DO、第一控制信号GW1和第四控制信号GW4处于高电平,第二数据控制信号DE、第二控制信号GW2、第三控制信号GW3和电荷分享信号GS1处于低电平。此时第一数据开关S1、第一开关单元SW1和第四开关单元SW4会开启,第二数据开关S2、第二开关单元SW2、第三开关单元SW3、第五开关单元SW5和多个电荷分享开关CSW会关闭,使得第一子像素131依据源极驱动器106产生的灰阶信号显示灰阶。
当在第五时段T5时,第二数据控制信号DE、第二控制信号GW2和第三控制信号GW3处于高电平,第一数据控制信号DO、第一控制信号GW1、第四控制信号GW4和电荷分享信号GS1处于低电平。此时第二数据开关S2、第二开关单元SW2和第三开关单元SW3会开启,第一数据开关S1、第一开关单元SW1、第四开关单元SW4和多个电荷分享开关CSW会关闭,使得第二子像素132依据源极驱动器106产生的灰阶信号显示灰阶。
当在第六时段T6时,第二控制信号GW2和第四控制信号GW4处于高电平,第一控制信号GW1、第三控制信号GW3和电荷分享信号GS1处于低电平。此时第二开关单元SW2和第四开关单元SW4会开启,第一开关单元SW1、第三开关单元SW3和多个电荷分享开关CSW会关闭。在这个时候,源极驱动器106并不会传输灰阶信号至数据线D1。由于液晶显示器100在处于三维影像模式时不会启动电荷分享功能,所以电荷分享信号GS1-GSm在三维影像模式下会一直处于低电平,使得多个电荷分享开关CSW持续关闭。
综上所述,液晶显示器100在不增加栅极驱动器的情形下,在每一行扫描线都增设多个开关单元。该多个开关单元分别用来控制像素单元的充电和电荷分享,因此达到将像素充电和电荷分享独立控制的目的。因此本发明在没有额外增设栅极驱动器的情形下就可以改善现有技术在显示3D影像时发生的闪烁问题。
请参阅图5,图5绘示了本发明第二实施例显示三维影像的液晶显示器200的示意图。使用者观看液晶显示器200时,可以切换观看2D或3D影像。不同于液晶显示器100,液晶显示器200的控制信号产生器114用于依据二维/三维影像启动信号,产生不同的控制信号GW1-GW6。
请参阅图6,图6为图5的液晶显示面板110的局部放大图。液晶显示面板110的数个像素单元130是以一对一的方式电性连接到数据线D1-Dn和扫描线G1-Gm。每一像素单元130包含第一子像素131和第二子像素132。第一子像素131包含第一晶体管1311和第一像素电极1312。第二子像素132包含第二晶体管1321和第二像素电极1322。液晶显示器100另包含多组开关单元和多组数据开关。每一行的像素单元130是电性连接其中一组开关单元,每一列的像素单元130是电性连接其中一组数据开关。每一组开关单元包含第一开关单元SW1、第二开关单元SW2、第三开关单元SW3、第四开关单元SW4、第五开关单元SW5、第六开关单元SW6。每一组数据开关包含第一数据开关S1和第二数据开关S2。由于每一像素单元130的电性连接关系是相同的,因此以下实施例仅以其中一个像素单元130为例说明。
请一并参阅图6和图7。图7是图6所示的控制信号GW1-GW6在二维影像模式下的时序图。第一数据开关S1电性连接数据线D1和第一子像素131,用来于接收第一数据控制信号DO时,导通数据线D1传送的数据信号至第一子像素131。第二数据开关S2电性连接数据线D1和第二子像素132,用来于接收第二数据控制信号DE时,导通数据线D1传送的数据信号至第二子像素132。第一开关单元SW1电性连接扫描线G1及第一子像素131,用来于接收第一控制信号GW1时,导通扫描信号G1至第一子像素131。第二开关单元SW2电性连接固定电压Vgl和第一子像素131,用来于接收第二控制信号GW2时,导通固定电压Vgl至第一子像素131。第三开关单元SW3电性连接扫描线G1及第二子像素132,用来于接收第三控制信号GW3时,导通扫描信号G1至第二子像素132。第四开关单元SW4电性连接固定电压Vgl和第二子像素132,用来于接收第四控制信号GW4时,导通固定电压Vgl至第二子像素132。第五开关单元SW5电性连接扫描线G1和多个电荷分享开关CSW,用来于接收第五控制信号GW5时,导通扫描信号以开启电荷分享开关CSW。第六开关单元SW6电性连接固定电压Vgl和多个电荷分享开关CSW,用来于接收第六控制信号GW6时,导通固定电压Vgl以关闭电荷分享开关CSW。较佳地,固定电压Vgl的电压值必须是不足以开启电荷分享开关CSW的低电平。开关单元SW1-SW6、数据开关S1、S2和电荷分享开关CSW可以是NMOS(N-type metal oxide semiconductor)或PMOS(P-type metal oxide semiconductor)晶体管。
当用户通过输入接口116输入指令以控制液晶显示器200处于二维影像模式时,此时处理单元102会根据该输入指令产生的二维影像启动信号,控制时序控制器112、控制信号产生器114和数据控制信号产生器118提供二维影像所需的相关信号。扫描线G1~Gn会依序逐行传送扫描信号给每一行像素单元130,每一扫描线G1~Gn传送扫描信号给像素单元130的过程依序包含第一时段T1、第二时段T2和第三时段T3,第一时段T1、第二时段T2和第三时段T3是连续的。当液晶显示器200的扫描频率(frame rate)是60Hz,则第一时段T1、第二时段T2和第三时段T3的总和可以为8.3ms(1/60)。
以第一行扫描线G1为例,当在第一时段T1时,第一数据控制信号DO、第一控制信号GW1、第四控制信号GW4和第六控制信号GW6处于高电平,第二数据控制信号DE、第二控制信号GW2、第三控制信号GW3和第五控制信号GW5处于低电平。此时第一数据开关S1、第一开关单元SW1、第四开关单元SW4和第六开关单元SW6会开启,第二数据开关S2、第二开关单元SW2、第三开关单元SW3、第五开关单元SW5和电荷分享开关CSW会关闭,使得第一子像素131依据源极驱动器106产生的灰阶信号显示灰阶。
当在第二时段T2时,第二数据控制信号DE、第二控制信号GW2、第三控制信号GW3和第六控制信号GW6处于高电平,第一数据控制信号DO、第一控制信号GW1、第四控制信号GW4和第五控制信号GW5处于低电平。此时第二数据开关S2、第二开关单元SW2、第三开关单元SW3和第六开关单元SW6会开启,第一数据开关S1、第一开关单元SW1、第四开关单元SW4、第五开关单元SW5和电荷分享开关CSW会关闭,使得第二子像素132依据源极驱动器106产生的灰阶信号显示灰阶。
当在第三时段T3时,第二控制信号GW2、第四控制信号GW4和第五控制信号GW5处于高电平,第一控制信号GW1、第三控制信号GW3和第六控制信号GW6处于低电平。此时第二开关单元SW2、第四开关单元SW4和第五开关单元SW5会开启,第一开关单元SW1、第三开关单元SW3和第六开关单元SW6会关闭。在这个时候,源极驱动器106并不会传输灰阶信号至数据线D1,但是第五开关单元SW5会导通扫描信号使得多个电荷分享开关CSW开启。因为多个电荷分享开关CSW开启使得第一像素电极1312电性连接于第二像素电极1322,导致第一像素电极1312和第二像素电极1322同时处于同一电平而达到电荷分享的目的。
请参阅图8,图8是图6所示的控制信号GW1-GW6在三维影像模式下的时序图。当用户通过输入接口116输入指令以控制液晶显示器200处于三维影像模式时,此时处理单元102会根据该输入指令产生的三维影像启动信号,控制时序控制器112、控制信号产生器114和数据控制信号产生器118提供三维影像所需的相关信号。扫描线G1~Gn会依序逐行传送扫描信号给每一行像素单元130,每一扫描线G1~Gn传送扫描信号给像素单元130的过程依序包含第四时段T4、第五时段T5和第六时段T6,第四时段T4、第五时段T5和第六时段T6是连续的。
当在第四时段T4时,第一数据控制信号DO、第一控制信号GW1、第四控制信号GW4和第六控制信号GW6处于高电平,第二数据控制信号DE、第二控制信号GW2、第三控制信号GW3和第五控制信号GW5处于低电平。此时第一数据开关S1、第一开关单元SW1、第四开关单元SW4和第六开关单元SW6会开启,第二数据开关S2、第二开关单元SW2、第三开关单元SW3、第五开关单元SW5和电荷分享开关CSW会关闭,使得第一子像素131依据源极驱动器106产生的灰阶信号显示灰阶。
当在第五时段T5时,第二数据控制信号DE、第二控制信号GW2、第三控制信号GW3和第六控制信号GW6处于高电平,第一数据控制信号DO、第一控制信号GW1、第四控制信号GW4和第五控制信号GW5处于低电平。此时第二数据开关S2、第二开关单元SW2、第三开关单元SW3和第六开关单元SW6会开启,第一数据开关S1、第一开关单元SW1、第四开关单元SW4、第五开关单元SW5和电荷分享开关CSW会关闭,使得第二子像素132依据源极驱动器106产生的灰阶信号显示灰阶。
当在第六时段T6时,第二控制信号GW2、第四控制信号GW4和第六控制信号GW6处于高电平,第一控制信号GW1、第三控制信号GW3和第五控制信号GW5处于低电平。此时第二开关单元SW2、第四开关单元SW4和第六开关单元SW6会开启,第一开关单元SW1、第三开关单元SW3和第五开关单元SW5会关闭。在这个时候,源极驱动器106并不会传输灰阶信号至数据线D1。由于液晶显示器200在处于三维影像模式时不会启动电荷分享功能,所以第六开关单元SW6在三维影像模式下会持续导通固定电压,使得多个电荷分享开关CSW持续关闭。
综上所述,液晶显示器200在不增加栅极驱动器的情形下,在每一行扫描线都增设多个开关单元。该多个开关单元分别用来控制像素单元的充电和电荷分享,因此达到将像素充电和电荷分享独立控制的目的。因此本发明在没有额外增设栅极驱动器的情形下就可以改善现有技术在显示3D影像时发生的闪烁问题。
以上实施例说明,仅以NMOS晶体管为例,然而本领域具有通常知识者都能从本案揭示的NMOS晶体管的运作了解PMOS晶体管的运作,故不再赘述。
综上所述,虽然本发明已以较佳实施例揭露如上,但该较佳实施例并非用以限制本发明,该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。
本发明的实施方式
工业实用性
序列表自由内容

Claims (10)

  1. 一种改善显示3D影像发生闪烁的液晶显示器,包含:
    扫描线,用来传送扫描信号;
    数据线,用来传送灰阶信号;
    像素单元,包含第一子像素以及第二子像素;
    数据控制信号产生器,用来产生第一数据控制信号和第二数据控制信号;
    控制信号产生器,用来产生第一控制信号、第二控制信号、第三控制信号和第四控制信号;
    电荷分享信号源,用来产生电荷分享信号;
    第一数据开关,电性连接所述数据线和所述第一子像素,用来于接收所述第一数据控制信号时,导通所述灰阶信号至所述第一子像素;
    第二数据开关,电性连接所述数据线和所述第二子像素,用来于接收所述第二数据控制信号时,导通所述灰阶信号至所述第二子像素;
    第一开关单元,电性连接所述扫描线及所述第一子像素,用来于接收所述第一控制信号时,导通所述扫描信号至所述第一子像素;
    第二开关单元,电性连接固定电压和所述第一子像素,用来于接收所第二控制信号时,导通所述固定电压至所述第一子像素;
    第三开关单元,电性连接所述扫描线及所述第二子像素,用来于接收所述第三控制信号时,导通所述扫描信号至所述第二子像素;
    第四开关单元,电性连接所述固定电压及所述第二子像素,用来于接收所述第四控制信号时,导通所述固定电压至所述第二子像素;及
    电荷分享开关,电性连接所述电荷分享信号源、所述第一子像素和所述第二子像素,用来于接收所述电荷分享信号而开启时,将所述第一子像素电性连接于所述第二子像素。
  2. 根据权利要求1所述的液晶显示器,其中在所述液晶显示器处于二维影像模式下,所述扫描线传送所述扫描信号给所述像素单元的过程依序包含第一时段、第二时段和第三时段,
    当在所述第一时段时,所述第一数据开关、所述第一开关单元和所述第四开关单元,所述第二数据开关、所述第二开关单元、所述第三开关单元和所述电荷分享开关会关闭,使得所述第一子像素依据所述灰阶信号显示灰阶;
    当在所述第二时段时,所述第二数据开关、所述第二开关单元和所述第三开关单元会开启,所述第一数据开关、所述第一开关单元、所述第四开关单元和所述电荷分享开关会关闭,使得所述第二子像素依据所述灰阶信号显示灰阶;及
    当在所述第三时段时,所述第二开关单元、所述第四开关单元和所述电荷分享开关会开启,所述第一开关单元和所述第三开关单元会关闭,将所述第一子像素电性连接于所述第二子像素。
  3. 根据权利要求2所述的液晶显示器,其中所述第一时段、所述第二时段和所述第三时段是连续的。
  4. 根据权利要求2所述的液晶显示器,其中所述电荷分享信号是所述扫描信号,所述控制信号产生器另用来产生第五控制信号和第六控制信号,所述液晶显示器另包含:
    第五开关单元,电性连接所述扫描线和所述电荷分享开关,用来于接收所述第五控制信号时,导通所述扫描信号以开启所述电荷分享开关;以及
    第六开关单元,电性连接所述固定电压,用来于接收所述第六控制信号时,导通所述固定电压以关闭所述电荷分享开关。
  5. 根据权利要求4所述的液晶显示器,其中在所述液晶显示器处于二维影像模式下,
    当在所述第一时段和所述第二时段时,所述第五开关单元会关闭,所述第六开关单元会开启而导通所述固定电压;及
    当在所述第三时段时,所述第五开关单元会开启而导通所述扫描信号,所述第六开关单元会关闭。
  6. 根据权利要求4所述的液晶显示器,其中在所述液晶显示器处于二维影像模式下,所述第一控制信号和所述第二控制信号互为反相,所述第三控制信号和所述第四控制信号互为反相,所述第五控制信号和所述第六控制信号互为反相。
  7. 根据权利要求4所述的液晶显示器,其中在所述液晶显示器处于三维影像模式下,所述第五开关单元会关闭,但所述第六开关单元会关闭。
  8. 根据权利要求1所述的液晶显示器,其中在所述液晶显示器处于三维影像模式下,所述扫描线传送所述扫描信号给所述像素单元的过程依序包含第四时段和第五时段,
    当在所述第四时段时,所述第一开关单元和所述第四开关单元会开启,所述第二开关单元和所述第三开关单元会关闭,使得所述第一子像素依据所述灰阶信号显示灰阶;及
    当在所述第五时段时,所述第二开关单元和所述第三开关单元会开启,所述第一开关单元和所述第四开关单元会关闭,使得所述第二子像素依据所述灰阶信号显示灰阶。
  9. 根据权利要求8所述的液晶显示器,其中所述第四时段和所述第五时段是连续的。
  10. 根据权利要求8所述的液晶显示器,其中在所述液晶显示器处于三维影像模式下,所述第一控制信号和所述第二控制信号互为反相,所述第三控制信号和所述第四控制信号互为反相。
PCT/CN2014/070158 2013-12-30 2014-01-06 改善显示3d影像发生闪烁的液晶显示器 WO2015100745A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/235,814 US9368076B2 (en) 2013-12-30 2014-01-06 Liquid crystal display fixing flicker in 3D image display

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310743210.5A CN103728752B (zh) 2013-12-30 2013-12-30 改善显示3d影像发生闪烁的液晶显示器
CN201310743210.5 2013-12-30

Publications (1)

Publication Number Publication Date
WO2015100745A1 true WO2015100745A1 (zh) 2015-07-09

Family

ID=50452897

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/070158 WO2015100745A1 (zh) 2013-12-30 2014-01-06 改善显示3d影像发生闪烁的液晶显示器

Country Status (3)

Country Link
US (1) US9368076B2 (zh)
CN (1) CN103728752B (zh)
WO (1) WO2015100745A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105070266A (zh) * 2015-09-11 2015-11-18 深圳市华星光电技术有限公司 一种液晶显示面板及其阵列基板

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104166288B (zh) * 2014-08-28 2017-03-15 深圳市华星光电技术有限公司 立体显示装置及其液晶显示面板和阵列基板
CN104269153A (zh) 2014-10-24 2015-01-07 深圳市华星光电技术有限公司 液晶显示面板及其驱动结构和驱动方法
CN104375343B (zh) * 2014-11-17 2016-08-31 深圳市华星光电技术有限公司 一种阵列基板和液晶显示面板及其驱动方法
CN114170983B (zh) * 2021-11-30 2023-04-07 京东方科技集团股份有限公司 显示装置、显示驱动方法及电子设备

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101123734A (zh) * 2006-04-17 2008-02-13 三星Sdi株式会社 2维/3维图像显示设备、电子图像显示设备及其驱动方法
CN102063881A (zh) * 2009-11-18 2011-05-18 乐金显示有限公司 立体图像显示设备及其驱动方法
CN102149002A (zh) * 2010-02-09 2011-08-10 三星电子株式会社 三维图像显示装置
US20120126720A1 (en) * 2010-11-19 2012-05-24 Samsung Electronics Co., Ltd. Three-dimensional image display device
CN102737571A (zh) * 2011-03-29 2012-10-17 三星移动显示器株式会社 显示装置及其驱动方法
CN103257495A (zh) * 2013-05-24 2013-08-21 深圳市华星光电技术有限公司 一种阵列基板及液晶显示面板

Family Cites Families (18)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3659246B2 (ja) * 2002-11-21 2005-06-15 セイコーエプソン株式会社 駆動回路、電気光学装置及び駆動方法
JP2008145555A (ja) * 2006-12-07 2008-06-26 Epson Imaging Devices Corp 電気光学装置、走査線駆動回路および電子機器
TWI407419B (zh) * 2008-10-06 2013-09-01 Au Optronics Corp 具雙資料訊號產生機構之液晶顯示裝置
US8854563B2 (en) * 2009-10-28 2014-10-07 Sharp Kabushiki Kaisha Active matrix substrate, liquid crystal panel, liquid crystal display device, liquid crystal display unit, and television receiver
JP2012129425A (ja) * 2010-12-16 2012-07-05 Canon Inc マトリクス基板、検出装置、検出システム、及び、検出装置の駆動方法
CN102163881B (zh) * 2011-03-28 2013-03-20 徐力 四个工作边无铁芯发电机的磁场设计
KR20130011850A (ko) * 2011-07-22 2013-01-30 삼성디스플레이 주식회사 액정 표시 장치
TWI428900B (zh) * 2011-08-17 2014-03-01 Au Optronics Corp 顯示子像素電路、顯示面板及面板的驅動方法
TWI428901B (zh) * 2011-10-20 2014-03-01 Au Optronics Corp 液晶顯示裝置及其顯示驅動方法
US9171520B2 (en) * 2011-11-21 2015-10-27 Boe Technology Group Co., Ltd. Array substrate, method for controlling the same and display panel including the array substrate
CN102591083B (zh) * 2012-03-20 2014-11-19 深圳市华星光电技术有限公司 电荷分享型像素结构
US20130257837A1 (en) * 2012-03-28 2013-10-03 Shenzhen China Star Optoelectronics Technology Co. Ltd. Liquid crystal display device, driving circuit, and driving method thereof
KR101970537B1 (ko) * 2012-04-12 2019-04-22 삼성디스플레이 주식회사 표시 장치
US8830154B2 (en) * 2012-04-16 2014-09-09 Shenzhen China Star Optoelectronics Technology Co., Ltd Liquid crystal display device and driving circuit with reduced number of scan drivers and data drivers
TWI449024B (zh) * 2012-08-03 2014-08-11 Au Optronics Corp 畫素電路、畫素結構、可切換二維/三維顯示裝置及其顯示驅動方法
US20140104148A1 (en) * 2012-10-11 2014-04-17 Shenzhen China Star Potoelectronics Technology Co., Ltd. Liquid Crystal Display and the Driving Circuit Thereof
TWI489175B (zh) * 2012-11-30 2015-06-21 Au Optronics Corp 顯示面板的陣列基板及其驅動方法
CN103728751B (zh) * 2013-12-27 2016-03-30 深圳市华星光电技术有限公司 切换显示二维和三维影像的液晶显示器

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101123734A (zh) * 2006-04-17 2008-02-13 三星Sdi株式会社 2维/3维图像显示设备、电子图像显示设备及其驱动方法
CN102063881A (zh) * 2009-11-18 2011-05-18 乐金显示有限公司 立体图像显示设备及其驱动方法
CN102149002A (zh) * 2010-02-09 2011-08-10 三星电子株式会社 三维图像显示装置
US20120126720A1 (en) * 2010-11-19 2012-05-24 Samsung Electronics Co., Ltd. Three-dimensional image display device
CN102737571A (zh) * 2011-03-29 2012-10-17 三星移动显示器株式会社 显示装置及其驱动方法
CN103257495A (zh) * 2013-05-24 2013-08-21 深圳市华星光电技术有限公司 一种阵列基板及液晶显示面板

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105070266A (zh) * 2015-09-11 2015-11-18 深圳市华星光电技术有限公司 一种液晶显示面板及其阵列基板

Also Published As

Publication number Publication date
CN103728752A (zh) 2014-04-16
US20150325182A1 (en) 2015-11-12
US9368076B2 (en) 2016-06-14
CN103728752B (zh) 2016-03-30

Similar Documents

Publication Publication Date Title
WO2015096199A1 (zh) 切换显示二维和三维影像的液晶显示器
US10535313B2 (en) Display device and method of driving the same
CN105427781B (zh) 显示装置
US8330687B2 (en) Liquid crystal display
US9934736B2 (en) Liquid crystal display and method for driving the same
CN104347045B (zh) 显示设备及其驱动方法
CN102915716B (zh) 像素电路、像素结构、可切换二维/三维显示装置、显示驱动方法
US20100231564A1 (en) Liquid crystal display and method of driving the same
WO2015100745A1 (zh) 改善显示3d影像发生闪烁的液晶显示器
WO2017101190A1 (zh) 显示器和其驱动方法
CN102034448A (zh) 图像显示装置和驱动图像显示装置的方法
KR101560413B1 (ko) 액정표시장치
KR20180049332A (ko) 프레임 주파수를 변경할 수 있는 표시 장치 및 그것의 구동 방법
JP2007164181A (ja) 表示装置
CN102789767A (zh) 栅极驱动器和包括该栅极驱动器的液晶显示器
CN101877212A (zh) 液晶显示装置及其驱动方法
WO2012048497A1 (zh) 液晶显示器及其驱动显示方法
CN104952407B (zh) 一种液晶面板的源极驱动器及其驱动方法
CN110189696A (zh) 一种显示装置及其驱动方法
KR20180042511A (ko) 액정표시장치와 그 구동 방법
WO2016061916A1 (zh) 液晶显示面板及其驱动结构和驱动方法
KR101949927B1 (ko) 액정표시장치의 인버전 구동방법
CN100555033C (zh) 数据转换器件及其方法,和具有该器件的液晶显示器件
JP5302492B2 (ja) インパルシブ駆動液晶表示装置及びその駆動方法
KR101461035B1 (ko) 액정 표시장치의 구동장치와 그 구동방법

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 14235814

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14877276

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14877276

Country of ref document: EP

Kind code of ref document: A1