WO2013159382A1 - 采用半源极驱动结构的3d显示装置 - Google Patents

采用半源极驱动结构的3d显示装置 Download PDF

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Publication number
WO2013159382A1
WO2013159382A1 PCT/CN2012/075108 CN2012075108W WO2013159382A1 WO 2013159382 A1 WO2013159382 A1 WO 2013159382A1 CN 2012075108 W CN2012075108 W CN 2012075108W WO 2013159382 A1 WO2013159382 A1 WO 2013159382A1
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Prior art keywords
pixel
gate line
switching element
display device
pixel electrode
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Ceased
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PCT/CN2012/075108
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English (en)
French (fr)
Inventor
萧嘉强
陈峙彣
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US13/581,479 priority Critical patent/US8928823B2/en
Publication of WO2013159382A1 publication Critical patent/WO2013159382A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • 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
    • G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
    • 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
    • G02B30/25—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 using polarisation techniques
    • 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
    • G02F1/136209—Light shielding layers, e.g. black matrix, incorporated in the active matrix substrate, e.g. structurally associated with the switching element
    • 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
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
    • G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • 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
    • 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
    • H04N13/324—Colour aspects
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/13363—Birefringent elements, e.g. for optical compensation
    • 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
    • G09G2300/02—Composition of display devices
    • G09G2300/023—Display panel composed of stacked panels
    • 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
    • G09G2300/0452—Details of colour pixel setup, e.g. pixel composed of a red, a blue and two green components

Definitions

  • the present invention relates to 3D imaging technology, and more particularly to a 3D display device employing a half source driving structure.
  • the 3D display utilizes the human two-eye parallax to provide different images to the two eyes to produce a stereoscopic effect.
  • a conventional 3D development system is provided by a patterned one-half phase retardation layer 90 and a quarter-wave phase retardation layer 91 on the light exit surface of the liquid crystal display panel.
  • the phase retarder is configured to transmit images of different polarization directions to the viewer.
  • the viewer wears the polarized glasses 7 so that the left eye receives the image of the single polarization direction, and the right eye receives the image of the other polarization direction.
  • a stereoscopic image is synthesized in the brain.
  • the liquid crystal display panel of the 3D display system uses the image displayed by the pixel column of its odd column (or even column) as the left eye input image, and the other pixel columns as the right eye input image.
  • the image of the liquid crystal display panel of the 3D display system is first converted into a linearly polarized image 80 by a polarizer.
  • the linearly polarized image 80 is then passed through the patterned one-half phase retarder 90, the light is split into two sets of linearly polarized images 81 whose polarization directions are perpendicular to each other.
  • an image 82 including a left circularly polarized image and a right circularly polarized image is output as a left-eye input image and a right-eye input image.
  • the lenses 71 and 72 of the polarized glasses 7 worn by the viewer are composed of a quarter-wave plate and a polarizer.
  • the image 82 including the left circularly polarized image and the right circularly polarized image is first converted into a linearly polarized image by a quarter wave plate of the lenses 71 and 72, and then passed through the polarizers of the lenses 71 and 72. After that, they reach the left and right eyes respectively. Since the polarizers of the lenses 71 and 72 have different polarization directions, the left eye of the user can only see the input image of the left eye, and the right eye can only see the input image of the right eye, thereby achieving the effect of the three-dimensional image.
  • FIG. 2 is a partial schematic view showing a phase retarder attached to a liquid crystal display panel of a conventional 3D display system.
  • the liquid crystal display panel of the existing 3D development system includes a plurality of gate lines 51, a plurality of data lines 50 interleaved with the gate lines 51, and a pixel area defined by the gate lines 51 and the data lines 50.
  • the pixel region is provided with a thin film transistor and a pixel electrode 52.
  • the pixel area can be divided into a plurality of pixel columns.
  • the phase retarder 60 of the conventional 3D development system has a plurality of first phase delay regions 60A and a plurality of second phase delay regions 60B, wherein the first phase delay region 60A and the second phase delay region 60B are interleaved Arranged and have different liquid crystal alignments.
  • the intersection of the first phase delay region 60A and the second phase delay region 60B of the phase retarder may be located between adjacent pixel columns, and the first phase is shielded by the black matrix 53 between adjacent pixel columns.
  • the junction of the delay region 60A and the second phase delay region 60B is a plurality of first phase delay regions 60A and a plurality of second phase delay regions 60B, wherein the first phase delay region 60A and the second phase delay region 60B are interleaved Arranged and have different liquid crystal alignments.
  • the intersection of the first phase delay region 60A and the second phase delay region 60B of the phase retarder may be located between adjacent pixel columns, and the first phase is shielded by the black matrix 53 between adjacent pixel columns.
  • the cost of the source driving circuit is higher than that of the gate driving circuit
  • another type of 3D imaging system uses a half source driving circuit for the use of the source driving circuit (half) Source driver,
  • the pixel driving structure of HSD that is, halving the data line 50 of the source driving circuit, and doubling the gate line 51 of the gate driving circuit into two gate lines 51a, 51b, thus enabling the same number of pixels
  • the number of data lines of the source driving circuit is reduced to reduce the cost.
  • the thin film transistor to which one of the pixel electrodes 52 is connected is located on the upper side thereof, the thin film transistor connected to the adjacent pixel electrode 52 is located at the upper side.
  • the lower side of the pixel electrode 52 is described. Due to the fixed spatial relationship of the pixel regions, the light-emitting positions of adjacent pixel electrodes 52 on the same column will be different.
  • the black matrix 53 forms periodic bumps on both sides of the gate lines 51 corresponding to the positions of the thin film transistors, as shown in FIG.
  • the phase retarder 60 shown in FIG. 2 is attached, the amount of light transmitted by the adjacent pixel electrodes 52 in the same pixel column will be inconsistent, causing a color shift problem of the 3D developing system.
  • the main object of the present invention is to provide a 3D display device using a half-source driving structure, which can avoid the color shift problem caused when the phase retarder is attached.
  • the present invention provides a 3D display device including:
  • a liquid crystal display panel comprising a plurality of gate lines and a plurality of data lines, wherein the gate lines and the data lines are interleaved to form a plurality of pixel regions, wherein each of the gate lines is bent into an arch corresponding to a pixel region
  • the accommodating area is provided with at least one switching unit and at least one pixel electrode, and the at least one switching element is disposed in the arched accommodating area and connects the gate line and the pixel electrode ;as well as
  • a phase retarder is disposed on an outer side of the liquid crystal panel.
  • the liquid crystal display panel includes a plurality of pixel units, each of the pixel units includes a first gate line, a second gate line, a first data line, a second data line, and a first pixel.
  • the second switching element is disposed in the second accommodating area and connects the second gate line, the second data line, and the second pixel electrode.
  • each of the pixel units further includes a first storage capacitor and a second storage capacitor, wherein the first storage capacitor is disposed in the first accommodating region to connect the first a switching element; the second storage capacitor is disposed in the second receiving area to connect the second switching element.
  • the switching element is a thin film transistor.
  • the phase retarder provides a plurality of first phase delay unit columns and a plurality of second phase delay unit columns, the first phase delay unit column and the second phase delay unit column Staggered.
  • the first phase delay unit column corresponds to an odd column portion of the pixel region; and the second phase delay unit column corresponds to an even column portion of the pixel region.
  • the phase retarder is a multi-layer optical film comprising a quarter-wavelength liquid crystal retardation film and a patterned one-wavelength liquid crystal retardation film.
  • the patterned one-wavelength liquid crystal retardation film comprises a plurality of half-wavelength phase retardation cell columns and a plurality of columns of isotropic material cells, wherein the two-division The one-wavelength phase delay unit column and the isotropic material unit column are staggered.
  • the second data line in the pixel unit of the same column, the second data line further connects the first switching element of the adjacent pixel unit.
  • the liquid crystal display panel further includes a black matrix covering the gate line, the data line, and the switching element.
  • the present invention further provides a 3D display device using a half source driving structure, comprising:
  • a liquid crystal display panel comprising a plurality of gate lines and a plurality of data lines, wherein the gate lines and the data lines are interleaved to form a plurality of pixel regions, wherein each of the gate lines is bent into an arch shape corresponding to each pixel region
  • the accommodating area is provided with at least one switching unit and at least one pixel electrode, and the at least one switching element is disposed in the arched accommodating area and connects the gate line and the pixel Electrode;
  • phase retarder disposed on an outer side of the liquid crystal panel, the phase retarder providing a plurality of first phase delay unit columns and a plurality of second phase delay unit columns, the first phase delay unit column and the first The two phase delay unit columns are staggered, wherein the first phase delay unit column corresponds to an odd column portion of the pixel region; and the second phase delay unit column corresponds to an even column portion of the pixel region.
  • the invention mainly comprises bending the gate line to form a accommodating area to accommodate the switching element, and the light-emitting position of the pixel electrode of the adjacent pixel area can be maintained consistently without being affected by the position of the switching element, thereby avoiding the attachment error of the phase retarder.
  • the color shift problem that occurs when it occurs.
  • FIG. 1 is a schematic view of a light polarization state of a conventional 3D development system.
  • FIG. 2 is a partial schematic view showing a phase retarder attached to a liquid crystal display panel of a conventional 3D development system.
  • FIG 3 is a partial schematic view showing a phase retarder attached to a liquid crystal display panel of another conventional 3D development system.
  • FIG. 4 is a partial schematic view of a black matrix of the 3D development system of FIG. 3.
  • FIG. 5 is a partial schematic view of a phase retarder according to a preferred embodiment of a 3D display device of the present invention, which is attached to a liquid crystal display panel.
  • Fig. 6 is a partial enlarged view of the pixel unit of Fig. 5.
  • FIG. 5 is a partial schematic view of a phase retarder according to a preferred embodiment of a 3D display device of the present invention, which is attached to a liquid crystal display panel.
  • the 3D display device of the present invention includes a liquid crystal display panel and a phase retarder 10.
  • the liquid crystal display panel includes a plurality of gate lines 20 and a plurality of data lines 21, and the gate lines 20 are interleaved with the data lines 21 to form a plurality of pixel regions, wherein each gate line 20 corresponds to each pixel region.
  • Each of the pixel regions is provided with at least one switching unit 25 and at least one pixel electrode 22, and the at least one switching element 25 is disposed in the arched accommodating area 210.
  • the gate line 20 and the pixel electrode 22 are connected, and are preferably thin film transistors.
  • the phase retarder is provided on an outer side of the liquid crystal panel.
  • FIG. 6 is a partial enlarged view of the pixel unit in FIG.
  • the liquid crystal display panel includes a pixel array, and the pixel array includes a plurality of pixel units, each of the pixel units including a first gate line 20a, a second gate line 20b, a first data line 21a, and a second data line 21b.
  • the first pixel electrode 22a, the second pixel electrode 22b, the first switching element 25a, and the second switching element 25b further include a first storage capacitor 24a and a second storage capacitor 24b.
  • the first gate line 20a and the second gate line 20b are interleaved with the first data line 21a and the second data line 21b to form one of the pixel regions, and the first pixel electrode 22a and the second The pixel electrode 22b is arranged side by side in the pixel area, the first gate line 20a is partially bent into an arched first accommodating area 210a, and the first switching element 25a is disposed in the first accommodating area 210a.
  • the second switching element 25b is disposed in the second accommodating area 210b and connects the second gate line 20b, the second data line 21b, and the second pixel electrode 22b.
  • the first storage capacitor 24a is disposed in the first accommodating area 210a to connect the first switching element 25a; the second storage capacitor 24b is disposed in the second accommodating area 210b to connect the The second switching element 25b.
  • the first switching element 25a and the second switching element 25b are preferably thin film transistors.
  • the present invention is a 3D display device employing a half-source driving structure
  • the second data line 21b is connected adjacent to the second switching element 25b of one of the pixel units.
  • the main structure of the liquid crystal display panel (not shown) includes a first substrate, a second substrate, a liquid crystal layer, a first polarizer, and a second polarizer.
  • the first substrate can be a color filter (Color) A glass substrate of Filter, CF) or a substrate of other materials, the color filter comprising photoresist units of different colors.
  • the pixel array is disposed on the second substrate, that is, the gate line 20, the data line 21, the switching element 25, and the pixel electrode 22 are disposed on the second substrate.
  • the pixel region defined by the gate line 21 and the data line 20 is a photoresist unit corresponding to the color filter.
  • the color filter on the first substrate further includes a black matrix 23 as shown in FIG.
  • the liquid crystal layer is formed between the first substrate and the second substrate.
  • the first polarizer is disposed outside the first substrate (that is, the light exiting side of the first substrate).
  • the second polarizer is disposed outside the second substrate (that is, the light incident side of the second substrate).
  • the 3D display device further includes a backlight module disposed outside the second polarizer to provide a light source incident through the second polarizer.
  • the phase retarder 10 is disposed on an outer surface of the first polarizer.
  • the phase retarder 10 is preferably a multi-layer optical film comprising a quarter-wavelength liquid crystal retardation film and a patterned one-wavelength liquid crystal retardation film, and provides a plurality of first phase retardation cell columns 10A and a plurality of
  • the second phase delay unit column 10B is arranged in a staggered manner with the first phase delay unit column 10A and the second phase delay unit column 10B.
  • the first phase delay unit column 10A preferably corresponds to an odd column portion (or an even column portion) of the pixel region; and the second phase delay unit column 10B preferably corresponds to an even column portion of the pixel region. (or odd-numbered column parts).
  • the patterned one-half wavelength liquid crystal retardation film comprises a plurality of one-half wavelength phase retardation cell columns and a plurality of columns of isotropic material cells, wherein the one-half wavelength phase
  • the columns of delay cells and the columns of isotropic material cells are staggered.
  • the angle between the optical axis of the first phase delay unit column 10A and the transmission axis of the second polarizer is preferably 135 degrees (the error may be ⁇ 15°); the optical axis of the second phase delay unit column 10B
  • the angle with the penetration axis of the second polarizer is preferably 45 degrees (the error may be ⁇ 15°).
  • the first polarizer of the liquid crystal display panel converts the outgoing light image of the liquid crystal display panel into a linearly polarized light image; the linearly polarized light image then passes through the phase retarder 10, wherein the first phase delay unit passes
  • the linearly polarized light image of column 10A is converted into a left circularly polarized light image (or a right circularly polarized light image); the second phase retarded cell row 10B is converted into a right circularly polarized light image (or a left circularly polarized light image) by the second phase delay unit column 10B.
  • the user can match the round-biased glasses to receive the left circularly polarized light image and the right circularly polarized light image respectively, thereby generating stereoscopic effects.
  • the accommodating area formed by the gate line can accommodate the switching element and the storage capacitor, the pixel electrodes of the adjacent pixel areas in the same column can be aligned with each other without correspondingly adjusting the position of the switching element and the storage capacitor, that is, the light output.
  • the positions may be maintained, and the black matrix 23 may not necessarily form periodic bumps on both sides of the gate line 51. Therefore, the color shift problem caused when the phase retarder is attached with an error can be avoided.
  • the present invention allows the gate lines to be bent into the accommodating area to accommodate the switching elements, so that the light-emitting positions of the pixel electrodes of the adjacent pixel regions of the same column can be maintained consistently.
  • the color shift problem caused when the phase retarder is attached with errors can be avoided.

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  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Liquid Crystal (AREA)
  • Polarising Elements (AREA)

Description

采用半源极驱动结构的3D显示装置 技术领域
本发明是有关于3D显像技术，特别是有关于一种采用半源极驱动结构的3D显示装置。
 背景技术
因为人的双眼具有一定间距的关系，双眼看到的物体的方向并非完全一致。因此，3D显示器利用人类的两眼视差，分别提供给两眼不同影像而产生立体效果。
参考图1所示，现有一种3D显像系统是通过在液晶显示面板的光出射面上设置由一图案化的二分之一相位延迟层90及一四分之一波长相位延迟层91所构成的相位延迟片来向观看者输送偏振方向不同的影像，同时，观看者配戴偏振眼镜7，使其左眼接收单一偏振方向的影像，而右眼则接收另一偏振方向的影像，进而在大脑合成立体影像。一般来说，所述3D显像系统的液晶显示面板是将其奇数列(或偶数列)的像素列所显示的影像作为左眼输入影像，而其它像素列则作为右眼输入影像。
如图1所示，所述3D显像系统的液晶显示面板的影像会先通过偏光片转为线性偏振影像80。所述线性偏振影像80接着经过图案化的二分之一相位延迟片90之后，光线会分成两组偏振方向互相垂直的线性偏振影像81。所述两组线性偏振影像81经过所述四分之一波长相位延迟片91之后，即会输出包括左圆偏振影像及右圆偏振影像的影像82，以作为左眼输入影像与右眼输入影像。观看者配戴的偏振眼镜7的镜片71、72由四分之一波片及偏光片构成。所述包括左圆偏振影像及右圆偏振影像的影像82会先通过所述镜片71、72的四分之一波片而转成线性偏振影像，接着再经过所述镜片71、72的偏光片后，分别到达左、右眼。由于所述镜片71、72的偏光片具有不同偏振方向，使得使用者的左眼只能看到左眼输入影像，而右眼只能看到右眼输入影像，因而可达到三维影像的效果。
请参考图2所示，图2是现有3D显像系统的液晶显示面板贴附相位延迟片的局部示意图。现有3D显像系统的液晶显示面板包括多条栅极线51、多条与栅极线51交错的资料线50以及所述栅极线51与资料线50定义的像素区。所述像素区设有薄膜晶体管及像素电极52。所述像素区可分成多个像素列。现有3D显像系统的相位延迟片60具有多个第一相位延迟区域60A及多个第二相位延迟区域60B，其中所述第一相位延迟区域60A与所述第二相位延迟区域60B是交错排列并且具有不同的液晶配向。而所述相位延迟片的第一相位延迟区域60A及第二相位延迟区域60B的交界处会位于相邻的像素列之间，通过相邻的像素列之间的黑色矩阵53来遮蔽第一相位延迟区域60A及第二相位延迟区域60B的交界处。
请参考图3所示，由于源极驱动电路的成本较栅极驱动电路高，为了源极驱动电路的使用，现有另一种3D显像系统是采用半源极驱动电路(half source driver, HSD)的像素驱动结构，也就是将源极驱动电路的资料线50减半，而将栅极驱动电路的栅极线51加倍成为两条栅极线51a、51b，如此便能在相同像素数目下，降低源极驱动电路的资料线数目而减低成本。
然而，如图3所示，在半源极驱动电路的像素驱动结构中，当其中一像素电极52所连接的薄膜晶体管位于其上侧时，相邻的像素电极52连接的薄膜晶体管会位于所述像素电极52的下侧。由于像素区空间固定的关系，位于同一列上的相邻像素电极52的出光位置将会有所不同。为了遮蔽栅极线51、资料线50以及薄膜晶体管，黑色矩阵53会对应薄膜晶体管的位置而在栅极线51的两侧形成周期性的凸起，如图4所示。如此一来，在贴附如图2所示的相位延迟片60时，同一像素列中的相邻的像素电极52的透光量将会不一致，造成3D显像系统的色偏问题。
故，有必要提供一种采用半源极驱动结构的3D显示装置，以解决现有技术所存在的问题。
 技术问题
有鉴于现有技术的缺点，本发明的主要目的在于提供一种采用半源极驱动结构的3D显示装置，可避免相位延迟片发生贴附误差时所产生的色偏问题。
 技术解决方案
本发明提供一种3D显示装置，其包括：
一液晶显示面板，包括多条栅极线、多条资料线，所述栅极线与所述资料线交错构成多个像素区，其中每一栅极线对应一像素区弯折成一拱形的容置区，且每一像素区设有至少一开关单元及至少一像素电极，所述至少一开关元件设于所述拱形的容置区内并连接所述栅极线及所述像素电极；以及
一相位延迟片，设于所述液晶面板的外侧。
在本发明的一实施例中，所述液晶显示面板包括多个像素单元，每一像素单元包括第一栅极线、第二栅极线、第一资料线、第二资料线、第一像素电极、第二像素电极、第一开关元件以及第二开关元件，其中所述第一栅极线和第二栅极线与所述第一资料线和第二资料线相交错而构成所述像素区，所述第一像素电极与第二像素电极并排于所述像素区中，所述第一栅极线部分弯折成一拱形的第一容置区，所述第一开关元件设于所述第一容置区内并连接所述第一栅极线、所述第一资料线及所述第一像素电极；所述第二栅极线部分弯折成一拱形的第二容置区，所述第二开关元件设于所述第二容置区内并连接所述第二栅极线、所述第二资料线及所述第二像素电极。
在本发明的一实施例中，每一像素单元更包括一第一储存电容及一第二储存电容，其中所述第一储存电容设于所述第一容置区内而连接所述第一开关元件；所述第二储存电容设于所述第二容置区内而连接所述第二开关元件。
在本发明的一实施例中，所述开关元件为薄膜晶体管。
在本发明的一实施例中，所述相位延迟片提供多个第一相位延迟单元列以及多个第二相位延迟单元列，所述第一相位延迟单元列与所述第二相位延迟单元列呈交错排列。
在本发明的一实施例中，所述第一相位延迟单元列对应所述像素区的奇数列部分；所述第二相位延迟单元列对应所述像素区的偶数列部分。
在本发明的一实施例中，所述相位延迟片是包含四分之一波长液晶延迟膜与图案化的二分之一波长液晶延迟膜的复层光学膜片。
在本发明的一实施例中，所述图案化的二分之一波长液晶延迟膜包括多个二分之一波长相位延迟单元列及多个等向性材料单元列，其中所述二分之一波长相位延迟单元列与所述等向性材料单元列是交错排列。
在本发明的一实施例中，在同一列的像素单元中，所述第二资料线还连接相邻像素单元的第一开关元件。
在本发明的一实施例中，所述液晶显示面板还包括黑色矩阵，所述黑色矩阵覆盖所述栅极线、所述资料线及所述开关元件。
本发明另提供一种采用半源极驱动结构的3D显示装置，其包括：
一液晶显示面板，包括多条栅极线、多条资料线，所述栅极线与所述资料线交错构成多个像素区，其中每一栅极线对应每一像素区弯折成一拱形的容置区，且每一像素区设有至少一开关单元及至少一像素电极，所述至少一开关元件设于所述拱形的容置区内并连接所述栅极线及所述像素电极；以及
一相位延迟片，设于所述液晶面板的外侧，所述相位延迟片提供多个第一相位延迟单元列以及多个第二相位延迟单元列，所述第一相位延迟单元列与所述第二相位延迟单元列呈交错排列，其中所述第一相位延迟单元列对应所述像素区的奇数列部分；所述第二相位延迟单元列对应所述像素区的偶数列部分。
 有益效果
本发明主要是让栅极线弯折形成容置区以容纳开关元件，相邻像素区的像素电极的出光位置可维持一致而不受开关元件位置影响，进而可避免相位延迟片发生贴附误差时所产生的色偏问题。
 附图说明
图1是现有3D显像系统的光偏振状态的示意图。
图2是现有3D显像系统的液晶显示面板贴附相位延迟片的局部示意图。
图3是另一现有3D显像系统的液晶显示面板贴附相位延迟片的局部示意图。
图4是图3的3D显像系统的黑色矩阵的局部示意图。
图5是本发明采用半源极驱动结构的3D显示装置一较佳实施例的相位延迟片对应贴附在液晶显示面板的局部示意图。
图6是图5中的像素单元的局部放大图。
 本发明的最佳实施方式
为让本发明上述目的、特征及优点更明显易懂，下文特举本发明较佳实施例，并配合附图，作详细说明如下。再者，本发明所提到的方向用语，例如「上」、「下」、「前」、「后」、「左」、「右」、「内」、「外」、「侧面」等，仅是参考附加图式的方向。因此，使用的方向用语是用以说明及理解本发明，而非用以限制本发明。
请参考图5所示，图5是本发明采用半源极驱动结构的3D显示装置一较佳实施例的相位延迟片对应贴附在液晶显示面板的局部示意图。本发明的3D显示装置包括一液晶显示面板及一相位延迟片10。所述液晶显示面板包括多条栅极线20、多条资料线21，所述栅极线20与所述资料线21交错构成多个像素区，其中每一栅极线20对应每一像素区皆弯折成一拱形的容置区210，且每一像素区设有至少一开关单元25及至少一像素电极22，所述至少一开关元件25设于所述拱形的容置区210内并连接所述栅极线20及所述像素电极22，且优选为薄膜晶体管。所述相位延迟片是设于所述液晶面板的外侧。
更详细地，请参考图6所示，图6是图5中的像素单元的局部放大图。所述液晶显示面板包括一像素阵列，所述像素阵列包括多个像素单元，每一像素单元包括第一栅极线20a、第二栅极线20b、第一资料线21a、第二资料线21b、第一像素电极22a、第二像素电极22b、第一开关元件25a以及第二开关元件25b，更包含一第一储存电容24a及一第二储存电容24b。所述第一栅极线20a和第二栅极线20b与所述第一资料线21a和第二资料线21b相交错而构成其中一所述像素区，所述第一像素电极22a与第二像素电极22b并排于所述像素区中，所述第一栅极线20a部分弯折成一拱形的第一容置区210a，所述第一开关元件25a设于所述第一容置区210a内并连接所述第一栅极线20a、所述第一资料线21a及所述第一像素电极22a；所述第二栅极线20b部分弯折成一拱形的第二容置区210b，所述第二开关元件25b设于所述第二容置区210b内并连接所述第二栅极线20b、所述第二资料线21b及所述第二像素电极22b。所述第一储存电容24a设于所述第一容置区210a内而连接所述第一开关元件25a；所述第二储存电容24b设于所述第二容置区210b内而连接所述第二开关元件25b。所述第一开关元件25a与所述第二开关元件25b优选为薄膜晶体管。
由于本发明是采用半源极驱动结构的3D显示装置，位在同一列的像素单元中，所述第二资料线21b除了连接其中一像素单元的第二开关元件25b之外，还连接相邻像素单元的第一开关元件25a。
一般来说，所述液晶显示面板(图未示出)的主要结构包括第一基板、第二基板、液晶层、第一偏光片以及第二偏光片。第一基板可为为具有彩色滤光片(Color Filter，CF)的玻璃基板或其它材质的基板，所述彩色滤光片包括不同颜色的光刻胶单元。所述像素阵列则是设置于所述第二基板，也就是说，所述栅极线20、所述资料线21、所述开关元件25、所述像素电极22是设于第二基板上，所述栅极线21和资料线20定义的像素区即对应所述彩色滤光片的光刻胶单元。所述第一基板上的彩色滤光片还包括如图5所示的黑色矩阵23，用以对应遮蔽所述所述栅极线20、所述资料线21及所述开关元件25。所述液晶层是形成于第一基板与第二基板之间。所述第一偏光片是设置所述第一基板的外侧(亦即为第一基板的出光侧)。第二偏光片是设置第二基板的外侧(亦即为第二基板的入光侧)。所述3D显示装置更包含一背光模组，设于第二偏光片的外侧，以提供光源入射通过所述第二偏光片。而所述相位延迟片10是设置在所述第一偏光片的外表面。
所述相位延迟片10优选是包含四分之一波长液晶延迟膜与图案化的二分之一波长液晶延迟膜的复层光学膜片，并提供多个第一相位延迟单元列10A以及多个第二相位延迟单元列10B，所述第一相位延迟单元列10A与所述第二相位延迟单元列10B呈交错排列。再者，所述第一相位延迟单元列10A优选是对应所述像素区的奇数列部分(或偶数列部分)；所述第二相位延迟单元列10B优选是对应所述像素区的偶数列部分(或奇数列部分)。在一实施例中，所述图案化的二分之一波长液晶延迟膜包括多个二分之一波长相位延迟单元列及多个等向性材料单元列，其中所述二分之一波长相位延迟单元列与所述等向性材料单元列是交错排列。所述第一相位延迟单元列10A的光轴与所述第二偏光片的穿透轴夹角优选为135度(误差可为±15°)；所述第二相位延迟单元列10B的光轴与所述第二偏光片的穿透轴夹角优选为45度(误差可为±15°)。
本发明的3D显示装置的动作原理如下述：
所述液晶显示面板的第一偏光片会将液晶显示面板的出射光影像转成线偏振光影像；所述线偏振光影像接着通过所述相位延迟片10，其中通过所述第一相位延迟单元列10A的线偏振光影像会转换成左圆偏振光影像(或右圆偏振光影像)；通过所述第二相位延迟单元列10B会转换成右圆偏振光影像(或左圆偏振光影像)。使用者可搭配圆偏眼镜来使其双眼分别接收左圆偏振光影像和右圆偏振光影像，进而产生立体视觉的效果。
再者，由于栅极线形成的容置区可容纳开关元件以及储存电容，位于同一列的相邻像素区的像素电极可相互对齐，而不必对应开关元件及储存电容的位置调整，亦即出光位置可维持一致，同时黑色矩阵23对应栅极线51的两侧也可不必形成周期性的凸起。因此，可避免相位延迟片发生贴附误差时所产生的色偏问题。
由上述说明可知，相较于现有技术的缺失，本发明让栅极线弯折形成容置区以容纳开关元件，使得同一列的相邻像素区的像素电极的出光位置可维持一致，进而可避免相位延迟片发生贴附误差时所产生的色偏问题。
本发明已由上述相关实施例加以描述，然而上述实施例仅为实施本发明的范例。必需指出的是，已公开的实施例并未限制本发明的范围。相反地，包含于权利要求书的精神及范围的修改及均等设置均包括于本发明的范围内。
 本发明的实施方式
工业实用性
序列表自由内容

Claims (12)

  1. 一种采用半源极驱动结构的3D显示装置，其中所述3D显示装置包括：
    一液晶显示面板，包括多条栅极线、多条资料线，所述栅极线与所述资料线交错构成多个像素区，其中每一栅极线对应每一像素区弯折成一拱形的容置区，且每一像素区设有至少一开关单元及至少一像素电极，所述至少一开关元件设于所述拱形的容置区内并连接所述栅极线及所述像素电极；以及
    一相位延迟片，设于所述液晶面板的外侧，所述相位延迟片提供多个第一相位延迟单元列以及多个第二相位延迟单元列，所述第一相位延迟单元列与所述第二相位延迟单元列呈交错排列，其中所述第一相位延迟单元列对应所述像素区的奇数列部分；所述第二相位延迟单元列对应所述像素区的偶数列部分。
  2. 如权利要求1所述的采用半源极驱动结构的3D显示装置，其中所述液晶显示面板包括多个像素单元，每一像素单元包括第一栅极线、第二栅极线、第一资料线、第二资料线、第一像素电极、第二像素电极、第一开关元件以及第二开关元件，其中所述第一栅极线和第二栅极线与所述第一资料线和第二资料线相交错而构成所述像素区，所述第一像素电极与第二像素电极并排于所述像素区中，所述第一栅极线部分弯折成一拱形的第一容置区，所述第一开关元件设于所述第一容置区内并连接所述第一栅极线、所述第一资料线及所述第一像素电极；所述第二栅极线部分弯折成一拱形的第二容置区，所述第二开关元件设于所述第二容置区内并连接所述第二栅极线、所述第二资料线及所述第二像素电极。
  3. 一种采用半源极驱动结构的3D显示装置，其中所述3D显示装置包括：
    一液晶显示面板，包括多条栅极线、多条资料线，所述栅极线与所述资料线交错构成多个像素区，其中每一栅极线对应一像素区弯折成一拱形的容置区，且每一像素区设有至少一开关单元及至少一像素电极，所述至少一开关元件设于所述拱形的容置区内并连接所述栅极线及所述像素电极；以及
    一相位延迟片，设于所述液晶面板的外侧。
  4. 如权利要求3所述的采用半源极驱动结构的3D显示装置，其中所述液晶显示面板包括多个像素单元，每一像素单元包括第一栅极线、第二栅极线、第一资料线、第二资料线、第一像素电极、第二像素电极、第一开关元件以及第二开关元件，其中所述第一栅极线和第二栅极线与所述第一资料线和第二资料线相交错而构成所述像素区，所述第一像素电极与第二像素电极并排于所述像素区中，所述第一栅极线部分弯折成一拱形的第一容置区，所述第一开关元件设于所述第一容置区内并连接所述第一栅极线、所述第一资料线及所述第一像素电极；所述第二栅极线部分弯折成一拱形的第二容置区，所述第二开关元件设于所述第二容置区内并连接所述第二栅极线、所述第二资料线及所述第二像素电极。
  5. 如权利要求4所述的采用半源极驱动结构的3D显示装置，其中每一像素单元更包括一第一储存电容及一第二储存电容，其中所述第一储存电容设于所述第一容置区内而连接所述第一开关元件；所述第二储存电容设于所述第二容置区内而连接所述第二开关元件。
  6. 如权利要求3所述的采用半源极驱动结构的3D显示装置，其中所述开关元件为薄膜晶体管。
  7. 如权利要求3所述的采用半源极驱动结构的3D显示装置，其中所述相位延迟片提供多个第一相位延迟单元列以及多个第二相位延迟单元列，所述第一相位延迟单元列与所述第二相位延迟单元列呈交错排列。
  8. 如权利要求7所述的采用半源极驱动结构的3D显示装置，其中所述第一相位延迟单元列对应所述像素区的奇数列部分；所述第二相位延迟单元列对应所述像素区的偶数列部分。
  9. 如权利要求7所述的采用半源极驱动结构的3D显示装置，其中所述相位延迟片是包含四分之一波长液晶延迟膜与图案化的二分之一波长液晶延迟膜的复层光学膜片。
  10. 如权利要求9所述的采用半源极驱动结构的3D显示装置，其中所述图案化的二分之一波长液晶延迟膜包括多个二分之一波长相位延迟单元列及多个等向性材料单元列，其中所述二分之一波长相位延迟单元列与所述等向性材料单元列是交错排列。
  11. 如权利要求4所述的采用半源极驱动结构的3D显示装置，其中在同一列的像素单元中，所述第二资料线还连接相邻像素单元的第一开关元件。
  12. 如权利要求3所述的采用半源极驱动结构的3D显示装置，其中所述液晶显示面板还包括黑色矩阵，所述黑色矩阵覆盖所述栅极线、所述资料线及所述开关元件。
PCT/CN2012/075108 2012-04-27 2012-05-07 采用半源极驱动结构的3d显示装置 Ceased WO2013159382A1 (zh)

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