WO2013075558A1 - 阵列基板、其控制方法及包括该阵列基板的显示面板 - Google Patents
阵列基板、其控制方法及包括该阵列基板的显示面板 Download PDFInfo
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- WO2013075558A1 WO2013075558A1 PCT/CN2012/083027 CN2012083027W WO2013075558A1 WO 2013075558 A1 WO2013075558 A1 WO 2013075558A1 CN 2012083027 W CN2012083027 W CN 2012083027W WO 2013075558 A1 WO2013075558 A1 WO 2013075558A1
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Classifications
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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
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
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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
- G09G3/001—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
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
- H04N13/337—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using polarisation multiplexing
-
- 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
- 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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0439—Pixel structures
- G09G2300/0443—Pixel structures with several sub-pixels for the same colour in a pixel, not specifically used to display gradations
Definitions
- Embodiments of the present invention relate to an array substrate, a method of controlling the same, and a display panel including the array substrate. Background technique
- the fundamental principle of stereoscopic display is that the parallax produces stereoscopic, even if the left eye of the person sees the left eye image and the right eye sees the right eye image.
- the left and right eye images are a pair of stereo image pairs with parallax.
- a big way to achieve stereo is to use the serial type, that is, at the first moment, the display shows the left eye picture, at this time only the left eye of the viewer sees the display picture; at the second moment, the display shows the right eye picture, only let The viewer's right eye sees the display screen, and the persistence of the image in the retina of the human eye makes it possible for the left and right eyes to see the left and right eye images at the same time, thereby generating a stereoscopic feeling.
- Another way to realize stereoscopic is parallel, that is, at the same time, a part of the pixels on the display display the content of the left-eye picture, and some of the pixels display the content of the right-eye picture, and the display of a part of the pixels is only performed by means of a grating, polarized glasses, or the like. It can be seen by the right eye, and the other part can only be seen by the left eye, resulting in a three-dimensional feeling.
- Polarized glasses stereoscopic display is a mainstream technology in the field of stereoscopic display.
- the basic structure of the polarized glasses stereoscopic display is to install a device that can adjust the direction of the polarized light in front of the display panel.
- the device can be a phase difference plate, a liquid crystal cell, or other device that can adjust the direction of light emitted by different pixels.
- the principle of the stereoscopic display of the phase difference plate is as shown in Fig. 1. From top to bottom, the screen is displayed on the display panel, the phase difference plate, the exit screen, and the polarized glasses for viewing.
- one line shows the right eye image
- one line shows the left eye picture
- a phase difference plate is placed in front of it
- one line is delayed by ⁇ /2
- one line is delayed by 0, so that the polarization direction of the light emitted by the ⁇ /2 delayed pixel can be made.
- Rotate 90. In this way, wearing polarized glasses with orthogonal polarization directions of the left and right eyes, the right eye can only see the light emitted by the right eye pixel, and the left eye can only see the light emitted by the left eye pixel, thereby generating a stereoscopic effect.
- the technique of using an at retarder is the most popular.
- the basic structure of the stereoscopic display is that after a precise alignment with the display panel, a phase difference plate is attached, and different phase delays can be generated by using different regions on the phase difference plate, so that light of different pixels is emitted in different polarization directions. The viewer can see the 3D effect when wearing polarized glasses.
- Fig. 2 schematically shows a simplified principle of a polarized glasses type 3D display viewing angle narrow (only a simplified theoretical calculation, but can provide a directional conclusion), wherein DP is a display panel and PR is a phase difference plate.
- a is the height of the pixel display area
- b is the width of the vertical direction black matrix (BM)
- c is the width of one stripe of the phase difference plate
- h is the distance of the phase difference plate to the display panel
- 6> is 3D
- the viewing angle, p a + b
- p is a fixed value, which is the pixel size.
- a good 3D effect can only be seen in the narrow shaded area on the right, where angle ⁇ is an important parameter.
- the calculation can be performed according to the simplified schematic shown in Fig. 2, and the 3D viewing angle satisfies the following relationship:
- the scheme of the active black matrix (Active BM) is derived, and its structure is shown in Fig. 3.
- one sub-pixel unit is divided into two upper and lower small pixels, i.e., the first sub-pixel 1 and the second sub-pixel 2, and are separately controlled.
- the first sub-pixel 1 and the second sub-pixel 2 display the same content;
- the second sub-pixel 2 is displayed as black, which is equivalent to widening the BM width b of the original pixel, thereby Can improve the 3D viewing angle.
- the second sub-pixel 2 is controlled as an independent pixel, which causes the gate line of the display panel to become twice as large as the original, and the data signal line becomes twice as large as the original. Control costs and control difficulty.
- Embodiments of the present invention can easily control the display panel to implement a movable black matrix.
- An embodiment of the present invention provides an array substrate, including: a data line; a first gate line and a second gate line, the first gate line and the second gate line intersecting the data line to define a plurality of matrixes arranged in a matrix Asian image
- Each of the sub-pixel structures includes a first sub-pixel and a second sub-pixel, and each of the first sub-pixel and the second sub-pixel includes a pixel electrode and a thin film transistor, and the respective thin film transistor
- Each includes a gate, a source, a drain, and an active layer; a first control line insulated from the first gate line and the second gate line; and a first switching device for the first control line Controlling, connecting or disconnecting the first sub-pixel and the second sub-pixel corresponding to the first sub-pixel and the second sub-pixel in the same sub-pixel structure, wherein in each of the sub-pixel structures, the first gate line Connected to the first sub-pixel, the second gate line is connected to the second sub-pixel, and the first sub-pixel and
- the first switching device is a first TFT (Thin Film Transistor), a gate of the first TFT is connected to the first control line, and a source and a drain are respectively connected to the first gate line and the second gate. line.
- first TFT Thin Film Transistor
- the array substrate further includes: a second control line, a third control line, and a second switching device, wherein the second switching device is configured to communicate or disconnect the second control under control of the third control line Line and second grid line.
- the second switching device is a second TFT
- a gate of the second TFT is connected to the third control line
- a source and a drain are respectively connected to the second control line and the second gate line.
- An embodiment of the present invention further discloses a control method for controlling the array substrate, comprising: applying a signal for turning on the first switching device to the first control line in a 2D display state, the first The switching device is turned on; the signal inputting the first gate line of the first sub-pixel is simultaneously input to the second gate line of the second sub-pixel; the data line is simultaneously given to the first sub-pixel and the second sub-pixel Charging; inserting a black screen when switching the 3D display state; applying a signal for turning off the first switching device to the first control line, the first switching device is turned off; signal input of the first gate line The first sub-pixel, the data line charges the first sub-pixel.
- the method for controlling the array substrate of the embodiment of the present invention further includes: the second control line continuously inputting a signal for turning off the TFT in the second sub-pixel to the second gate line, in 2D In the display state, a signal for turning off the second switching device is applied to the third control line, the second switching device is turned off; and a signal for turning on the second switching device is applied in a 3D display state.
- the third control line is described, and the second switching device is turned on.
- the present invention also provides a display panel comprising: the above array substrate; a counter substrate, and The array substrates are opposed to each other to form a liquid crystal cell; a liquid crystal material is filled in the liquid crystal cell, wherein a pixel electrode of each sub-pixel structure of the array substrate is used to apply an electric field to control the degree of rotation of the liquid crystal material Thereby performing a display operation.
- FIG. 1 is a schematic diagram showing the principle of realizing 3D display by using a phase difference plate in the prior art
- FIG. 2 is a schematic diagram showing the relationship between the viewing angle of the 3D display and the size of the black matrix
- FIG. 3 is a schematic structural view of an array substrate in which a movable black matrix is used in the prior art to increase a viewing angle, wherein (a) is an array substrate on which a movable black matrix is not used, and (b) is a movable activity.
- FIG. 4 is a schematic structural view of an array substrate according to an embodiment of the present invention.
- FIG. 5 is a schematic structural diagram of another array substrate according to an embodiment of the present invention. detailed description
- Embodiment 1 of the present invention provides an example of an array substrate which can be used for a 3D display device, and an example of the array substrate will be described in detail below with reference to FIG.
- the array substrate in this embodiment includes: a data line 10; a first gate line 3 and a second gate line 4, wherein the first gate line 3 and the second gate line 4 intersect with the data line 10
- each sub-pixel structure includes a first sub-pixel 1 and a second sub-pixel 2
- each of the first sub-pixel 1 and the second sub-pixel 2 includes a pixel electrode and a thin film transistor (TFT a respective thin film transistor including a gate, a source, a drain, and an active layer
- TFT thin film transistor
- the first gate line 3 is in the first sub-pixel 1 and the second sub- Between the pixels 2, the second gate line 4 is between the second sub-pixel 2 of the sub-pixel structure and the second sub-pixel of the adjacent sub-pixel structure.
- the gate of the TFT of the first sub-pixel 1 is connected to the first gate line 3, and the gate of the TFT of the second sub-pixel 2 is connected to the second gate line 4, the first sub-pixel 1 and the second The sources of the TFTs of the sub-pixel 2 are all connected to the data line 10.
- the first switching device 6 in this embodiment is a thin film transistor.
- the first control line 5 is insulated from both the first gate line 3 and the second gate line 4.
- the gate of the first switching device 6 is connected to the first control line 5, and the source and the drain are respectively connected to the first gate line 3 and the second gate corresponding to the first sub-pixel 1 and the second sub-pixel 2 in the same sub-pixel structure.
- Line 4, the first switching device 6 is controlled to be turned on and off by the first control line 5, thereby causing the first gate line 3 and the second gate line 4 to be connected or disconnected.
- an N-type TFT is taken as an example for description (when the P-type is used, the gate control signal has the opposite polarity), and in the 2D display state, the first control line 5 inputs a high voltage, and the first switching device 6 Turning on, the signal inputting the first gate line 3 of the first sub-pixel 1 is simultaneously input to the second gate line 4 of the second sub-pixel 2, and the data line 10 simultaneously charges the first sub-pixel 1 and the second sub-pixel 2 , to display the picture.
- the screen When switching to the 3D display state, the screen is inserted into a black screen so that both the first sub-pixel 1 and the second sub-pixel 2 are displayed in black. Then, the first control line 5 inputs a low voltage, the first TFT 6 is turned off, the connection between the first gate line 3 and the second gate line 4 is disconnected, and the second gate line 4 does not obtain a high voltage signal, so that the second sub-pixel 2
- the gate of the TFT in the middle is turned off without inputting a high potential, and the data line 10 cannot charge the second sub-pixel 2. Therefore, the second sub-pixel 2 displays black, thereby realizing the Active BM.
- the "normal black mode" is used to make the second sub-pixel 2 better in the black state.
- Normal black mode is typically used in IPS, FFS, and VA modes, which is black when no power is applied.
- the embodiment of the present invention can more easily realize the control of the second sub-pixel by adding the first control line and the first switching device, thereby reducing the control difficulty of the movable black matrix, and also improving the vertical direction resolution. Effect.
- the second control line, the third control line and the second switching device are added to prevent the gate voltage fluctuation of the second sub-pixel and reduce the leakage current of the second sub-pixel.
- This embodiment provides an example of a method of controlling the array substrate of Embodiment 1 of the present invention.
- the specific instructions are as follows:
- a signal for turning on the first switching device 6, that is, a high voltage signal is applied to the first control line 5, so that the first switching device 6 is turned on;
- the signal of the first gate line 3 is input only to the first sub-pixel 1, the TFT of the first sub-pixel 1 is turned on, and the data line 10 charges only the first sub-pixel 1.
- control method reduces the control cost and the control difficulty, and also improves the 3D viewable angle.
- Embodiment 3 of the present invention provides another example of an array substrate usable for a 3D display device, and an example of the array substrate will be described in detail below with reference to FIG.
- the second sub-pixel 2 has a leakage current, and after the second gate line 4 is disconnected from the first gate line 3 of the first sub-pixel 1, the voltage changes, because the second The gate line 4 is floating, and then the gate line and the data line signal change beside it, and the charge is coupled to change the voltage on the second gate line 4, resulting in an increase in leakage current.
- the array substrate in this embodiment adds the second control line 7, the third control line 8 and the second switching device to the embodiment 1, as shown in FIG.
- the second switching device in this embodiment is the second TFT 9.
- the gate of the second TFT 9 is connected to the third control line 8, the source and the drain are respectively connected to the second control line 7 and the second gate line 4, and the second TFT 9 is controlled to be turned on and off by the third control line 8, thereby making the second The control line 7 and the second gate line 4 are connected or disconnected.
- VGL low voltage
- the third control line 8 inputs a low voltage
- the second TFT 9 is turned off
- the second control The line 7 and the second gate line 4 are not connected.
- the first control line 5 inputs a high voltage
- the first TFT 6 is turned on
- the signal input to the first gate line 3 of the first sub-pixel 1 is simultaneously input to the second gate line 4 of the second sub-pixel 2.
- the data line 10 simultaneously charges the first sub-pixel 1 and the second sub-pixel 2 to display a picture.
- the screen When switching to the 3D display state, the screen is inserted into a black screen so that both the first sub-pixel 1 and the second sub-pixel 2 are displayed in black. Then, the first control line 5 is input with a low voltage, the first TFT 6 is turned off, the connection between the first gate line 3 and the second gate line 4 is disconnected, and the second gate line 4 is not subjected to a high voltage signal. At the same time, the third control line 8 inputs a high voltage, and turns on the second TFT 9, and the gate of the second sub-pixel 2 communicates with the second control line 7 through the second gate line 4 to the gate of the second sub-pixel 2.
- the "normal black mode" is used to make the second sub-pixel 2 better in the black state.
- Normal black mode is typically used in IPS, FFS, and VA modes, which is black when no power is applied.
- the embodiment of the present invention can more easily realize the control of the second sub-pixel by adding the first control line and the first switching device, thereby reducing the control difficulty of the movable black matrix, and also improving the vertical direction resolution.
- the effect of increasing the second control line, the third control line and the second switching device prevents the gate voltage variation of the second sub-pixel and reduces the leakage current of the second sub-pixel.
- the embodiment provides a method for controlling the array substrate according to Embodiment 3 of the present invention, which is specifically described as follows:
- the second control line 7 continuously inputs a low voltage signal (the low voltage signal turns off the TFT in the second sub-pixel 2) to the second gate.
- Line 4 the low voltage signal turns off the TFT in the second sub-pixel 2.
- a signal for turning off the second TFT 9, that is, a low voltage signal is applied to the third control line 8, and the second TFT 9 is turned off, so that the second control line 7 and the second gate line 4 are not connected;
- the signal of the first gate line 3 is input to the first sub-pixel 1, and the data line 10 charges the first sub-pixel 1.
- the control method reduces the control cost and the control difficulty, and also improves the 3D viewable angle.
- the second control line is added.
- the third control line 8 and the second TFT 9 avoid the gate voltage variation of the second sub-pixel 2 and reduce the leakage current of the second sub-pixel 2.
- the embodiment provides a display panel comprising the array substrate of Embodiment 1 or Embodiment 3.
- An example of the display panel is a liquid crystal display panel in which an array substrate and an opposite substrate are opposed to each other to form a liquid crystal cell in which a liquid crystal material is filled.
- the opposite substrate is, for example, a color film substrate.
- the pixel electrode of each sub-pixel structure of the array substrate is used to apply an electric field to control the degree of rotation of the liquid crystal material to perform a display operation.
- the liquid crystal display panel further includes a backlight that provides backlighting for the array substrate.
- Another example of the display panel is an organic electroluminescent display panel in which each of the array substrates operates.
- the present invention also provides a 3D display device whose display panel is the display panel in Embodiment 5.
- a display signal interface corresponding to the first control line 5, the second control line 7, and the third control line 8 is also provided in the display device.
- the display device increases the 3D viewable angle in the 3D display state.
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US13/703,799 US9171520B2 (en) | 2011-11-21 | 2012-10-16 | Array substrate, method for controlling the same and display panel including the array substrate |
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CN102654701B (zh) * | 2011-11-21 | 2014-06-11 | 京东方科技集团股份有限公司 | 阵列基板、显示面板及显示设备 |
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 |
CN103926763B (zh) * | 2013-03-07 | 2017-04-19 | 厦门天马微电子有限公司 | 阵列基板、液晶显示装置和图像显示方法 |
KR102052317B1 (ko) | 2013-11-26 | 2019-12-05 | 엘지디스플레이 주식회사 | 유기발광표시장치 및 그 구동 방법 |
CN103631023A (zh) * | 2013-11-29 | 2014-03-12 | 南京中电熊猫液晶显示科技有限公司 | 一种2d/3d液晶显示面板及其控制方法 |
CN103943032B (zh) * | 2014-04-01 | 2016-03-02 | 京东方科技集团股份有限公司 | 一种阵列基板及显示装置 |
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 |
CN106991966A (zh) * | 2017-05-27 | 2017-07-28 | 京东方科技集团股份有限公司 | 阵列基板及驱动方法、显示面板和显示装置 |
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2011
- 2011-11-21 CN CN201110372401.6A patent/CN102654701B/zh active Active
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2012
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CN101867836A (zh) * | 2009-04-17 | 2010-10-20 | 乐金显示有限公司 | 图像显示设备 |
CN102081911A (zh) * | 2009-11-30 | 2011-06-01 | 乐金显示有限公司 | 立体图像显示设备及其驱动方法 |
CN102193260A (zh) * | 2010-03-17 | 2011-09-21 | 乐金显示有限公司 | 图像显示装置 |
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