WO2016127620A1 - 液晶光栅、显示装置及其驱动方法 - Google Patents

液晶光栅、显示装置及其驱动方法 Download PDF

Info

Publication number
WO2016127620A1
WO2016127620A1 PCT/CN2015/087757 CN2015087757W WO2016127620A1 WO 2016127620 A1 WO2016127620 A1 WO 2016127620A1 CN 2015087757 W CN2015087757 W CN 2015087757W WO 2016127620 A1 WO2016127620 A1 WO 2016127620A1
Authority
WO
WIPO (PCT)
Prior art keywords
touch signal
touch
liquid crystal
signal lines
transparent electrode
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2015/087757
Other languages
English (en)
French (fr)
Inventor
黄小妹
叶本银
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
Original Assignee
BOE Technology Group Co Ltd
Chengdu BOE Optoelectronics Technology Co Ltd
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 BOE Technology Group Co Ltd, Chengdu BOE Optoelectronics Technology Co Ltd filed Critical BOE Technology Group Co Ltd
Priority to US14/905,309 priority Critical patent/US20160370921A1/en
Publication of WO2016127620A1 publication Critical patent/WO2016127620A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/134309—Electrodes characterised by their geometrical arrangement
    • G02F1/134336—Matrix
    • 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
    • G02B30/26—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 autostereoscopic type
    • G02B30/27—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 autostereoscopic type involving lenticular arrays
    • 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
    • G02B30/26—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 autostereoscopic type
    • G02B30/30—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 autostereoscopic type involving parallax barriers
    • G02B30/31—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 autostereoscopic type involving parallax barriers involving active parallax barriers
    • 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
    • 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
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1343—Electrodes
    • G02F1/13439—Electrodes characterised by their electrical, optical, physical properties; materials therefor; method of making
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0412—Digitisers structurally integrated in a display
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/047—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means using sets of wires, e.g. crossed wires
    • 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
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • 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
    • H04N13/398—Synchronisation thereof; Control thereof
    • 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
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/12—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode
    • G02F2201/124—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00 electrode interdigital
    • G—PHYSICS
    • G06—COMPUTING OR CALCULATING; COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
    • G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
    • G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
    • G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
    • G06F3/044—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means
    • G06F3/0445—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by capacitive means using two or more layers of sensing electrodes, e.g. using two layers of electrodes separated by a dielectric layer
    • 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
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/31—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers

Definitions

  • the present invention relates to the field of display technologies, and more particularly to a liquid crystal grating, a display device, and a driving method thereof.
  • An automatic or naked-eye stereoscopic display device generally employs a parallax barrier technique in which a light-traveling direction is controlled by setting a longitudinal fence-like optical barrier called a "parallax barrier" on the surface of the display screen, and the left and right eyes receive different images to generate parallax to realize stereoscopic display effect.
  • a parallax barrier technique in which a light-traveling direction is controlled by setting a longitudinal fence-like optical barrier called a "parallax barrier" on the surface of the display screen, and the left and right eyes receive different images to generate parallax to realize stereoscopic display effect.
  • the arrangement direction of the optical barrier is fixed, the stereoscopic effect cannot be exhibited when the display screen is rotated by 90 degrees.
  • the switchable liquid crystal grating can eliminate the inherent limitations of the parallax barrier type 3D stereoscopic display device.
  • the switchable liquid crystal grating acts as a parallax barrier, and the 2D/3D display mode can be switched by the switch of the liquid crystal barrier, and the arrangement of the liquid crystal barrier can also be made into two directions of horizontal and vertical, thereby satisfying the switching of the horizontal viewing and the vertical viewing. Demand.
  • a prior art stereoscopic display device 100 may include a TFT-LCD 101, an adhesive 102, a liquid crystal grating 103, and a backlight 104, wherein the liquid crystal grating 103 functions as a switchable parallax barrier.
  • a liquid crystal grating comprising: a first substrate; a second substrate opposite to the first substrate a liquid crystal layer disposed between the first substrate and the second substrate; a first transparent electrode layer formed on a side of the first substrate opposite to the second substrate and including a plurality of a transparent electrode strip in a first direction; and a second transparent electrode layer formed on a side of the second substrate opposite to the first substrate and including a plurality of transparent electrode strips in a second direction, the second The direction is perpendicular to the first direction; wherein the transparent electrode strip of the first direction and the transparent electrode strip of the second direction are adapted to be driven by a stereoscopic display driving signal to cause the liquid crystal layer to form the first direction Or a grating structure in the second direction; and wherein the plurality of first direction transparent electrode strips comprise a plurality of first touch signal lines, and the plurality of second direction transparent electrode strips comprise a plurality of strips Two touch letter Line
  • first touch signal line eg, a drive line
  • second touch signal line eg, a sensing line
  • Strip sharing enables integration of touch functions with two-way autostereoscopic display.
  • the mask of the touch signal line and the mask of the liquid crystal grating are combined into two mask patterns for the first substrate and the second substrate, respectively, thereby reducing the process and reducing the cost. Further, the size (e.g., thickness) of the display device obtained as a result will also be reduced, thereby facilitating product design.
  • the plurality of first touch signal lines comprise a plurality of sets of first touch signal lines arranged in parallel and independent of each other, each group comprising at least one touch signal line.
  • the plurality of first direction transparent electrode strips further includes a plurality of interconnected first non-touch signal lines, each of the plurality of first non-touch signal lines and the plurality of first touches Each of the signal lines is spaced apart from each other to form an interdigitated shape.
  • the first non-touch signal line has the same line width as the first touch signal line.
  • the sum of the spacing between the adjacent first non-touch signal lines and the first touch signal lines and the line width is a width or sub-pixel width of about 1 pixel.
  • the plurality of second touch signal lines comprise a plurality of sets of second touch signal lines arranged in parallel and independent of each other, each group comprising at least one touch signal line.
  • the plurality of second direction transparent electrode strips further includes a plurality of interconnected second non-touch signal lines, each of the plurality of second non-touch signal lines and the plurality of second touches Each of the signal lines is spaced apart from each other to form an interdigitated shape.
  • the second non-touch signal line and the second touch signal line have the same line width.
  • the sum of the spacing between the adjacent second non-touch signal lines and the second touch signal lines and the line width is about 1 pixel width or sub-pixel width.
  • the first touch signal line is a touch signal driving line
  • the second touch signal line is a touch signal sensing line.
  • a display device comprising a display panel and the liquid crystal grating according to the first aspect of the invention, wherein the liquid crystal grating is arranged to be located on a light exiting side of the display panel.
  • the liquid crystal grating is arranged such that the first substrate is away from the display panel in a light emitting direction of the display panel than the second substrate.
  • the liquid crystal grating is arranged such that the second substrate is away from the display panel in the light emitting direction of the display panel than the first substrate.
  • the display device further includes a driving chip configured to respectively provide a touch driving signal and a stereoscopic display driving signal to the liquid crystal grating in a time division manner, or only provide a touch driving signal at predetermined time intervals.
  • the touch driving signal drives the first touch signal line and the second touch signal line to achieve touch positioning
  • the stereoscopic display driving signal drives the transparent electrode strip in the first direction and the second direction
  • the transparent electrode strip is such that the liquid crystal layer forms a grating structure in the first direction or the second direction.
  • a method for driving a display device comprising: providing a touch driving signal and a stereoscopic display driving signal to the liquid crystal grating, respectively, in a time division manner, or Providing only a touch driving signal at predetermined time intervals, wherein the touch driving signal drives the first touch signal line and the second touch signal line to achieve touch positioning, and the stereoscopic display driving signal drives the first a transparent electrode strip in one direction and a transparent electrode strip in the second direction to form the liquid crystal layer to form a grating structure in the first direction or the second direction.
  • providing the touch driving signal includes: providing a touch control driving signal to a first plurality of the plurality of groups of first touch signal lines, to a second one of the plurality of groups of second touch signal lines Groups provide touch control sensing signals, and touch signal lines in remaining ones of the plurality of sets of first touch signal lines, touch signal lines in remaining ones of the plurality of sets of second touch signal lines, The first non-touch signal line and the second non-touch signal line are used as virtual electrode non-access signals.
  • the first plurality of groups are composed of an odd array or an even array of the plurality of groups of first touch signal lines
  • the second plurality of groups are included in the plurality of groups of second touch signal lines Odd array or even array.
  • the liquid crystal layer forms a grating structure in the second direction
  • providing the stereoscopic display driving signal comprises: providing a first grating driving voltage to the transparent electrode strip in the first direction, to the The second touch signal line provides a second raster drive voltage that cooperates with the first raster drive voltage, and the second non-touch signal line is used as a dummy electrode non-access signal.
  • the liquid crystal layer forms a grating structure in the first direction
  • providing the stereoscopic display driving signal comprises: providing a first grating driving voltage to the first touch signal line, to the second direction
  • the transparent electrode strip provides a second grating driving voltage that cooperates with the first grating driving voltage, and the first non-touch signal line is used as a dummy electrode non-input signal.
  • FIG. 1 is a cross-sectional view schematically showing a stereoscopic display device 100 having a liquid crystal grating box 103 in the prior art;
  • FIG. 2 is a schematic cross-sectional view showing a liquid crystal grating 200 according to an embodiment of the present invention
  • FIG. 3 schematically shows a transparent electrode pattern on the first substrate 201 and the second substrate 202 in the liquid crystal grating 200 according to an embodiment of the present invention.
  • FIG. 2 schematically shows a cross-sectional view of a liquid crystal grating 200 in accordance with an embodiment of the present invention.
  • the liquid crystal grating 200 may include a first substrate 201, a second substrate 202 disposed opposite the first substrate 201, and a liquid crystal layer 203 between the first substrate and the second substrate.
  • a first transparent electrode layer 211 is formed on a side of the first substrate 201 opposite to the second substrate 202.
  • a second transparent electrode layer 212 is formed on a side of the second substrate 202 opposite to the first substrate 201.
  • the liquid crystal layer 203 may employ a TN (Twisted Nematic) type liquid crystal which is in a normally white mode without being powered.
  • TN Transmission Nematic
  • the first transparent electrode layer 211 may include a plurality of transparent electrode strips in a first direction
  • the second transparent electrode layer 212 may also include a plurality of transparent electrode strips in a second direction.
  • the transparent electrode strip may be an indium tin oxide (ITO) material.
  • ITO indium tin oxide
  • the second direction is perpendicular to the first direction.
  • the transparent electrode strip in the first direction and the transparent electrode strip in the second direction are adapted to be driven by the stereoscopic display driving signal to cause the liquid crystal layer 203 to form a grating structure in the first direction or the second direction.
  • the transparent electrode strip of the first direction includes a plurality of first touch signal lines
  • the transparent electrode strip of the second direction also includes a plurality of second touch signal lines.
  • the first touch signal line and the second touch signal line are adapted to be driven by a touch drive signal to achieve touch positioning.
  • the first touch signal line is a touch signal driving line
  • the second touch signal line is a touch signal sensing line. Since the touch signal line is shared with the transparent electrode strip for forming the grating structure, integration of the touch function and the autostereoscopic display function can be realized.
  • the principle of touch localization may be based on projected capacitive touch sensing techniques, which are known in the art and therefore need not be discussed in detail herein.
  • the liquid crystal grating 200 may also include components such as polarizers, alignment films, and bezels, which are known in the art and therefore need not be discussed in detail herein.
  • the liquid crystal grating 200 may further include a driving chip 204 for providing a touch driving signal to the first touch signal line and the second touch signal line, and providing stereoscopic display to the transparent electrode in the first direction and the transparent electrode in the second direction.
  • Drive signal discussed in detail later.
  • the driver chip 204 can be separated from the liquid crystal grating 200 as a separate component.
  • the first touch signal line on the first substrate 201 includes a plurality of sets of first touch signal lines Tx1, Tx2, Tx3, ... independent of each other, each group including at least one touch signal line.
  • the respective sets of first touch signal lines Tx1, Tx2, Tx3, ... are arranged in parallel without overlapping.
  • the transparent electrode strip of the first direction further includes a plurality of interconnected first non-touch signal lines COM1.
  • Each of the plurality of first non-touch signal lines COM 1 is spaced apart from each of the plurality of sets of first touch signal lines Tx1, Tx2, Tx3, ... to form an interdigitated shape.
  • interconnect herein may refer to a physical connection or a connection via a signal (eg, applying the same signal simultaneously).
  • the first non-touch signal line COM 1 has the same line width as the touch signal lines of each of the first touch signal lines Tx1, Tx2, Tx3, .
  • the slit pitch of the transparent electrode in the first direction can be the same as that of the conventional liquid crystal grating.
  • the sum of the spacing between the adjacent first non-touch signal line COM 1 and the first touch signal line and the line width may be a width or sub-pixel width of about 1 pixel.
  • the second touch signal line on the second substrate 202 includes a plurality of sets of second touch signal lines Rx1, Rx2, Rx3, ... independent of each other, each group including at least one touch signal line.
  • Each of the sets of second touch signal lines Rx1, Rx2, Rx3, ... is arranged in parallel without overlapping.
  • the transparent electrode strip in the second direction further includes a plurality of interconnected second non-touch signal lines COM2.
  • Each of the plurality of second non-touch signal lines and each of the plurality of sets of second touch signal lines Rx1, Rx2, Rx3, . . . are spaced apart from each other to form an interdigitated shape.
  • interconnect as used herein may refer to a physical connection or a connection via a signal (eg, applying the same signal simultaneously).
  • the second non-touch signal line COM 2 has the same line width as each of the plurality of sets of second touch signal lines Rx1, Rx2, Rx3, .
  • the slit pitch of the transparent electrode in the second direction can be the same as that of the conventional liquid crystal grating.
  • the sum of the spacing between adjacent second non-touch signal lines and second touch signal lines and the line width is about 1 pixel width or sub-pixel width.
  • a display device comprising a display panel and the liquid crystal grating 200 described above, the liquid crystal grating 200 being arranged to be located on a light exiting side of the display panel.
  • the liquid crystal grating 200 can provide a display device with a touch function based on a similar "in cell" structure design by sharing a touch signal line with a transparent electrode strip for forming a grating structure, and by forming a first direction or a second direction Grating structure, also
  • the display device can be enabled to achieve auto-stereoscopic display in the horizontal or vertical direction.
  • liquid crystal grating 200 employs a TN type liquid crystal
  • the TN type liquid crystal is in the normally white mode in the uncharged state
  • such a display device can be used as an ordinary by making the liquid crystal grating 200 in the normally white mode.
  • 2D display possibly at the expense of a certain amount of light transmission).
  • the liquid crystal grating 200 may be disposed such that the first substrate 201 is away from the display panel in the light emitting direction of the display panel than the second substrate 202.
  • the first touch signal line (on the first substrate 201) is a touch signal driving line
  • the second touch signal line (on the second substrate 202) is a touch signal sensing line
  • the liquid crystal grating 200 may be disposed such that the second substrate 202 is away from the display panel in the light emitting direction of the display panel than the first substrate 201.
  • the touch function can still be realized, but suffers from loss of touch sensitivity.
  • the second touch signal line may be used as the touch signal driving line, and the first touch signal line is used as the touch signal sensing line, and only the driving chip is needed. The drive signals provided (discussed below) are adjusted accordingly.
  • the display device may also include a driver chip (eg, the driver chip 204 described above).
  • the driving chip 204 is configured to respectively provide a touch driving signal and a stereoscopic display driving signal to the liquid crystal grating 200 in a time division manner, or to provide only a touch driving signal at predetermined time intervals.
  • the touch driving signal drives the first touch signal line and the second touch signal line to implement touch positioning
  • the stereoscopic display driving signal drives the transparent electrode strip in the first direction and the transparent electrode strip in the second direction to form the liquid crystal layer 203 in the first direction or A grating structure in the second direction.
  • a method for driving the display device described above includes: respectively providing a touch driving signal and a stereoscopic display driving signal to the liquid crystal grating in a time division manner, or providing only a touch driving signal at a predetermined time interval, wherein the touch driving signal drives the first touch signal line and the second touch signal line To achieve touch positioning, and the stereoscopic display driving signal drives the transparent electrode strip in the first direction and the transparent electrode strip in the second direction to form the liquid crystal layer to form a grating structure in the first direction or the second direction.
  • a bidirectional (horizontal, vertical) switchable autostereoscopic display device with a touch function can be realized.
  • a touch drive signal is provided on a 50% time slice and a stereo display drive signal is provided on a 50% time slice, although other configurations may be employed as desired.
  • the liquid crystal grating 200 is in the normally white mode (which is transparent) as described above for most of the time.
  • the liquid crystal layer 203 of the liquid crystal grating 200 may form an undesired grating structure under the influence of the touch driving voltage pulse in the period in which the touch driving signal is present, it is only necessary to ensure that this period is short enough not to be human eyes. It is perceived (due to the visual persistence effect) that the liquid crystal grating 200 can be made to always be in a normally white mode for the user while also enabling detection of a touch action of the touch object on the display device.
  • providing the touch driving signal may include providing a touch control driving signal to the first plurality of groups of the plurality of sets of first touch signal lines Tx1, Tx2, Tx3, ... to the plurality of sets of second touch signal lines Rx1
  • a second plurality of groups of Rx2, Rx3, ... provide a touch control sensing signal, and a touch signal line, a plurality of groups of the second group of the plurality of sets of first touch signal lines Tx1, Tx2, Tx3, ...
  • the first plurality of groups are comprised of odd arrays (ie, Tx1, Tx3, Tx5...) or even arrays of the plurality of sets of first touch signal lines Tx1, Tx2, Tx3, ... (ie, Tx2, Tx4, Tx6... Composition
  • the second plurality of groups consist of an odd array (ie, Rx1, Rx3, Rx5...) or an even array (ie, Rx2, Rx4, Rx6...) of the plurality of sets of second touch signal lines Rx1, Rx2, Rx3, ... composition.
  • the selection of the number and composition of the touch signal lines in the first plurality of groups and the second plurality of groups is related to the touch resolution, and an appropriate configuration may be employed as needed.
  • providing the stereoscopic display driving signal may include providing the first plurality of transparent electrode strips in the first direction (ie, Tx1, Tx2, Tx3, ..., and COM1)
  • a grating driving voltage supplies a second grating driving voltage to the second touch signal line in cooperation with the first grating driving voltage, and the second non-touch signal line COM 2 as a dummy electrode non-input signal.
  • the first The direction is the lateral direction and the second direction is the longitudinal direction, and thus providing such a stereoscopic display driving signal can realize autostereoscopic display in the lateral direction.
  • providing the stereoscopic display driving signal may include providing a first grating driving voltage to the first touch signal line and a plurality of transparent electrode strips in the second direction (ie, Rx2, Rx4, Rx6, ..., and COM 2) provide a second raster drive voltage that cooperates with the first raster drive voltage, and the first non-touch signal line COM1 as a dummy electrode does not access the signal.
  • a first grating driving voltage to the first touch signal line and a plurality of transparent electrode strips in the second direction (ie, Rx2, Rx4, Rx6, ..., and COM 2) provide a second raster drive voltage that cooperates with the first raster drive voltage, and the first non-touch signal line COM1 as a dummy electrode does not access the signal.

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Optics & Photonics (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Human Computer Interaction (AREA)
  • Geometry (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Liquid Crystal (AREA)

Abstract

一种液晶光栅、显示装置以及用于驱动该显示装置的方法。该液晶光栅包括第一基板（201）、与该第一基板（201）相对设置的第二基板（202）、布置在第一基板（201）和第二基板（202）之间的液晶层（203）、形成在第二基板（202）的与第一基板（201）相对的一侧上的第二透明电极层（212）以及形成在第一基板（201）的与第二基板（202）相对的一侧上的第一透明电极层（211），其中，第一透明电极层（211）包括多个第一方向的透明电极条，并且第二透明电极层（212）包括多个第二方向的透明电极条；并且其中，多个第一方向的透明电极条包括多条第一触摸信号线（Tx1、Tx2、Tx3…），并且多个第二方向的透明电极条包括多条第二触摸信号线（Rx1、Rx2、Rx3…），第一触摸信号线（Tx1、Tx2、Tx3…）和第二触摸信号线（Rx1、Rx2、Rx3…）适合于由触摸驱动信号驱动以实现触摸定位。实现了触摸功能与双向自动立体显示功能的集成。

Description

液晶光栅、显示装置及其驱动方法
相关申请
本申请要求2015年2月15日向中国专利局提交的、申请号为201510081328.5的优先权，其全部公开内容通过引用合并于此。
技术领域
本发明涉及显示技术领域，更具体地涉及一种液晶光栅、显示装置及其驱动方法。
背景技术
自动或裸眼立体显示装置通常采用视差屏障技术，其中通过在显示屏幕表面设置称为“视差屏障”的纵向栅栏状光学屏障来控制光线行进方向，让左右两眼接收不同图像来产生视差以实现立体显示效果。然而，由于光学屏障的排列方向是固定的，当显示屏幕旋转90度时无法呈现立体感。
可开关的液晶光栅可以消除视差屏障式3D立体显示装置的固有限制。将可开关的液晶光栅充当视差屏障，可以通过液晶屏障的开关来切换2D/3D显示模式，并且液晶屏障的排列方式也可以制作成水平与垂直两种方向，从而满足横向观看与纵向观看的切换的需求。如图1所示，这样的现有技术的立体显示装置100可以包括TFT-LCD101、黏附胶102、液晶光栅103和背光104，其中液晶光栅103充当可开关的视差屏障。
然而，当需要为现有立体显示装置100增加触摸功能时，必须将附加的触摸屏贴合在立体显示屏上。触摸屏和立体显示屏作为独立的两个显示部件，需要在各自的基板上进行掩模制作，导致工艺复杂并且成本较高。此外，作为结果得到的显示装置的厚度较大，不利于产品的设计。
因此，需要一种改进的显示部件和使用该显示部件的显示装置，以及用于驱动该显示装置的方法。
发明内容
有利的是，在用于双向自动立体显示装置的液晶光栅中集成触摸功能。同样，合期望的是，提供一种具有这样的液晶光栅的显示装置及其驱动方法。
为了更好地解决这些所关心的问题中的一个或多个，在本发明的第一方面中，提供了一种液晶光栅，包括：第一基板；第二基板，与所述第一基板相对设置；液晶层，布置在所述第一基板和所述第二基板之间；第一透明电极层，形成在所述第一基板的与所述第二基板相对的一侧上并且包括多个第一方向的透明电极条；以及第二透明电极层，形成在所述第二基板的与所述第一基板相对的一侧上并且包括多个第二方向的透明电极条，所述第二方向垂直于所述第一方向；其中，所述第一方向的透明电极条和所述第二方向的透明电极条适合于由立体显示驱动信号驱动以使所述液晶层形成所述第一方向或所述第二方向上的光栅结构；并且其中，所述多个第一方向的透明电极条包括多条第一触摸信号线，并且所述多个第二方向的透明电极条包括多条第二触摸信号线，所述第一触摸信号线和所述第二触摸信号线适合于由触摸驱动信号驱动以实现触摸定位。
通过将第一触摸信号线(例如驱动线)与液晶光栅中的第一方向的透明电极条共用，并且将第二触摸信号线(例如感测线)与液晶光栅中的第二方向的透明电极条共用，可以实现触摸功能与双向自动立体显示功能的集成。触摸信号线的掩模(mask)和液晶光栅的掩模结合为分别用于第一基板和第二基板的2张掩模图形，从而减少了工艺，降低了成本。此外，作为结果得到的显示装置的尺寸(例如，厚度)也将减小，从而有利于产品设计。
可选地，所述多条第一触摸信号线包括并行排列且相互独立的多组第一触摸信号线，每组包括至少一条触摸信号线。
可选地，所述多个第一方向的透明电极条还包括互连的多条第一非触摸信号线，该多条第一非触摸信号线中的每一条与所述多条第一触摸信号线中的每一条相互间隔而形成叉指状。
可选地，所述第一非触摸信号线与所述第一触摸信号线具有相同的线宽。
可选地，相邻的第一非触摸信号线与第一触摸信号线之间的间距和所述线宽之和为约1个像素的宽度或亚像素宽度。
可选地，所述多条第二触摸信号线包括并行排列且相互独立的多组第二触摸信号线，每组包括至少一条触摸信号线。
可选地，所述多个第二方向的透明电极条还包括互连的多条第二非触摸信号线，该多条第二非触摸信号线中的每一条与所述多条第二触摸信号线中的每一条相互间隔而形成叉指状。
可选地，所述第二非触摸信号线与所述第二触摸信号线具有相同的线宽。
可选地，相邻的第二非触摸信号线与第二触摸信号线之间的间距和所述线宽之和为约1个像素的宽度或亚像素宽度。
可选地，所述第一触摸信号线为触摸信号驱动线，并且所述第二触摸信号线为触摸信号感测线。
根据本发明的第二方面，提供了一种显示装置，包括显示面板和根据本发明的第一方面的液晶光栅，其中，所述液晶光栅被布置成位于所述显示面板的出光侧。
可选地，所述液晶光栅被布置成使得所述第一基板在所述显示面板的出光方向上比所述第二基板远离所述显示面板，
可选地，所述液晶光栅被布置成使得所述第二基板在所述显示面板的出光方向上比所述第一基板远离所述显示面板。
可选地，所述显示装置还包括驱动芯片，所述驱动芯片被配置成以时分方式向所述液晶光栅分别提供触摸驱动信号和立体显示驱动信号，或者以预定的时间间隔仅提供触摸驱动信号，所述触摸驱动信号驱动所述第一触摸信号线和所述第二触摸信号线以实现触摸定位，所述立体显示驱动信号驱动所述第一方向的透明电极条和所述第二方向的透明电极条以使所述液晶层形成所述第一方向或所述第二方向上的光栅结构。
根据本发明的第三方面，提供了一种用于驱动根据本发明的第二方面的显示装置的方法，包括：以时分方式向所述液晶光栅分别提供触摸驱动信号和立体显示驱动信号，或者以预定的时间间隔仅提供触摸驱动信号，其中，所述触摸驱动信号驱动所述第一触摸信号线和所述第二触摸信号线以实现触摸定位，并且所述立体显示驱动信号驱动所述第一方向的透明电极条和所述第二方向的透明电极条以使所述液晶层形成所述第一方向或所述第二方向上的光栅结构。
可选地，提供所述触摸驱动信号包括：向所述多组第一触摸信号线中的第一多个组提供触摸控制驱动信号，向所述多组第二触摸信号线中的第二多个组提供触摸控制感测信号，以及将所述多组第一触摸信号线中的剩余组中的触摸信号线、所述多组第二触摸信号线中的剩余组中的触摸信号线、所述第一非触摸信号线和所述第二非触摸信号线作为虚拟电极不接入信号。
可选地，所述第一多个组由所述多组第一触摸信号线中的奇数组或偶数组组成，并且所述第二多个组由所述多组第二触摸信号线中的奇数组或偶数组组成。
可选地，所述液晶层形成所述第二方向上的光栅结构，并且提供所述立体显示驱动信号包括：向所述第一方向的透明电极条提供第一光栅驱动电压，向所述第二触摸信号线提供与所述第一光栅驱动电压相配合的第二光栅驱动电压，以及将所述第二非触摸信号线作为虚拟电极不接入信号。
可选地，所述液晶层形成所述第一方向上的光栅结构，并且提供所述立体显示驱动信号包括：向所述第一触摸信号线提供第一光栅驱动电压，向所述第二方向的透明电极条提供与所述第一光栅驱动电压相配合的第二光栅驱动电压，以及将所述第一非触摸信号线作为虚拟电极不接入信号。
根据在下文中所描述的实施例，本发明的这些和其它方面将是显而易见的，并且将参考在下文中所描述的实施例而被阐明。
附图说明
图1示意性地示出了现有技术中的具有液晶光栅盒103的立体显示装置100的剖面视图；
图2示意性地示出了根据本发明实施例的液晶光栅200的剖面视图；以及
图3示意性地示出了根据本发明实施例的液晶光栅200中的第一基板201和第二基板202上的透明电极图形。
具体实施方式
以下结合附图对本发明的各实施例进行详细描述。
图2示意性地示出了根据本发明实施例的液晶光栅200的剖面视图。如图所示，液晶光栅200可以包括第一基板201、与该第一基板201相对设置的第二基板202以及第一基板和第二基板之间的液晶层203。第一基板201的与第二基板202相对的一侧上形成有第一透明电极层211。第二基板202的与第一基板201相对的一侧上形成有第二透明电极层212。作为示例，液晶层203可以采用TN(Twisted Nematic)型液晶，其在不加电的情况下处于常白模式。
第一透明电极层211可以包括多个第一方向的透明电极条，并且第二透明电极层212也可以包括多个第二方向的透明电极条。作为示例，透明电极条可以为氧化铟锡(ITO)材料。一般地，第二方向垂直于第一方向。第一方向的透明电极条和第二方向的透明电极条适合于由立体显示驱动信号驱动以使液晶层203形成第一方向或第二方向上的光栅结构。通过驱动液晶光栅200形成第一方向或第二方向的光栅结构，可以在两个方向(横向或纵向)上实现自动立体显示。
第一方向的透明电极条包括多条第一触摸信号线，并且第二方向的透明电极条也包括多条第二触摸信号线。第一触摸信号线和第二触摸信号线适合于由触摸驱动信号驱动以实现触摸定位。在一个示例中，第一触摸信号线为触摸信号驱动(driving)线，并且第二触摸信号线为触摸信号感测(sensing)线。由于触摸信号线与用于形成光栅结构的透明电极条共用，因此，可以实现触摸功能与自动立体显示功能的集成。
应当理解，在本实施例中，触摸定位的原理可以基于投影电容式触摸感应技术，其在本领域中是已知的，并且因此不需要在此详细讨论。而且，液晶光栅200还可以包括偏光片、配向膜和边框等部件，这些部件是本领域已知的，并且因此不需要在此详细讨论。此外，液晶光栅200还可以包括驱动芯片204，以用于向第一触摸信号线和第二触摸信号线提供触摸驱动信号，并且向第一方向的透明电极和第二方向的透明电极提供立体显示驱动信号(后面详细讨论)。然而，作为示例而非限制，该驱动芯片204可以作为单独的部件而与液晶光栅200相分离。
进一步参考图3，其示意性地示出了根据本发明实施例的液晶光栅200中的第一基板201和第二基板202上的透明电极的图形。如图所示， 第一基板201上的第一触摸信号线包括相互独立的多组第一触摸信号线Tx1、Tx2、Tx3…，每组包括至少一条触摸信号线。各组第一触摸信号线Tx1、Tx2、Tx3…并行地排列而不交叠。此外，第一方向的透明电极条还包括互连的多条第一非触摸信号线COM 1。该多条第一非触摸信号线COM 1中的每一条与多组第一触摸信号线Tx1、Tx2、Tx3…中的每一条触摸信号线相互间隔而形成叉指状。应当理解，此处的术语“互连”可以是指物理上的连接或者经由信号的连接(例如，同时施加相同的信号)。
在一个示例中，第一非触摸信号线COM 1与各组第一触摸信号线Tx1、Tx2、Tx3…中的触摸信号线具有相同的线宽。第一方向的透明电极的细条间距(slit pitch)可以采用与传统液晶光栅相同的设计。作为示例而非限制，相邻的第一非触摸信号线COM 1与第一触摸信号线之间的间距和所述线宽之和可以为约1个像素的宽度或亚像素宽度。
第二基板202上的第二触摸信号线包括相互独立的多组第二触摸信号线Rx1、Rx2、Rx3…，每组包括至少一条触摸信号线。各组第二触摸信号线Rx1、Rx2、Rx3…并行地排列而不交叠。此外，第二方向的透明电极条还包括互连的多条第二非触摸信号线COM 2。该多条第二非触摸信号线中的每一条与多组第二触摸信号线Rx1、Rx2、Rx3…中的每一条触摸信号线相互间隔而形成叉指状。同样应当理解，此处的术语“互连”可以是指物理上的连接或者经由信号的连接(例如，同时施加相同的信号)。
在一个示例中，第二非触摸信号线COM 2与多组第二触摸信号线Rx1、Rx2、Rx3…中的每一条触摸信号线具有相同的线宽。第二方向的透明电极的细条间距(slit pitch)可以采用与传统液晶光栅相同的设计。作为示例而非限制，相邻的第二非触摸信号线与第二触摸信号线之间的间距和所述线宽之和为约1个像素的宽度或亚像素宽度。
在本发明的另一方面中，提供了一种显示装置，其包括显示面板和上文所述的液晶光栅200，液晶光栅200被布置成位于显示面板的出光侧。借助于这样的布置，可以实现触摸功能与双向自动立体显示功能的集成。具体地，液晶光栅200通过将触摸信号线与用于形成光栅结构的透明电极条共用，可以为显示装置提供基于类似“in cell”结构设计的触摸功能，并且通过形成第一方向或第二方向的光栅结构，还 可以使得显示装置能够实现横向或纵向的自动立体显示。另外，在液晶光栅200采用TN型液晶的情况下，由于TN型液晶在不加电状态下处于常白模式，因此，可以通过使液晶光栅200处于常白模式而将这样的显示装置用作普通的2D显示器(可能地以损失一定的透光率为代价)。
在一个示例中，液晶光栅200可以被布置成使得第一基板201在显示面板的出光方向上比第二基板202远离显示面板。在第一触摸信号线(位于第一基板201上)为触摸信号驱动(driving)线，并且第二触摸信号线(位于第二基板202上)为触摸信号感测(sensing)线的情况下，由于第一基板201在触摸操作时更靠近触摸物体，因此可以获得较好的触摸灵敏度。
在另一个示例中，液晶光栅200可以被布置成使得第二基板202在显示面板的出光方向上比第一基板201远离显示面板。此时，如果将第一触摸信号线作为触摸信号驱动线，并且将第二触摸信号线作为触摸信号感测线，则仍然可以实现触摸功能，只不过会遭受触摸灵敏度的损失。当然，在这种情况下，为了获得较好的触摸灵敏度，也可以将第二触摸信号线作为触摸信号驱动线，并且将第一触摸信号线作为触摸信号感测线，而只需对驱动芯片(在下面讨论)提供的驱动信号进行相应的调整。
显示装置还可以包括驱动芯片(例如，上文所述的驱动芯片204)。驱动芯片204被配置成以时分的方式向液晶光栅200分别提供触摸驱动信号和立体显示驱动信号，或者以预定的时间间隔仅提供触摸驱动信号。触摸驱动信号驱动第一触摸信号线和第二触摸信号线以实现触摸定位，立体显示驱动信号驱动第一方向的透明电极条和第二方向的透明电极条以使液晶层203形成第一方向或第二方向上的光栅结构。
相应地，在本发明的又一方面中，提供了一种用于驱动上文所述的显示装置的方法。该方法包括：以时分方式向液晶光栅分别提供触摸驱动信号和立体显示驱动信号，或者以预定的时间间隔仅提供触摸驱动信号，其中，触摸驱动信号驱动第一触摸信号线和第二触摸信号线以实现触摸定位，并且立体显示驱动信号驱动第一方向的透明电极条和第二方向的透明电极条以使液晶层形成第一方向或第二方向上的光栅结构。
在以时分方式向液晶光栅200分别提供触摸驱动信号和立体显示驱动信号的情况下，可以实现带有触摸功能的双向(横、纵向)可切换自动立体显示装置。例如，在50％的时间分片上提供触摸驱动信号，并且在50％的时间分片上提供立体显示驱动信号，尽管可以根据需要采用其他配置。
在以预定的时间间隔向液晶光栅200仅提供触摸驱动信号的情况下，可以实现带有触摸功能的2D显示装置。此时，液晶光栅200在大部分时间内处于如前面描述的常白模式(其是透明的)。注意，虽然在存在触摸驱动信号的时间段内，液晶光栅200的液晶层203在触摸驱动电压脉冲的影响下可能会形成不期望的光栅结构，但是只要确保这个时间段足够短而不被人眼感知到(由于视觉暂留效应)，就可以使得液晶光栅200对于用户而言看起来始终处于常白模式，同时还使得能够检测触摸物体在显示装置上的触摸动作。
特别地，提供触摸驱动信号可以包括：向多组第一触摸信号线Tx1、Tx2、Tx3…中的第一多个组提供触摸控制驱动(driving)信号，向多组第二触摸信号线Rx1、Rx2、Rx3…中的第二多个组提供触摸控制感测(sensing)信号，以及将多组第一触摸信号线Tx1、Tx2、Tx3…中的剩余组中的触摸信号线、多组第二触摸信号线Rx1、Rx2、Rx3…中的剩余组中的触摸信号线、第一非触摸信号线COM 1和第二非触摸信号线COM 2作为虚拟电极不接入信号。
在一个示例中，第一多个组由多组第一触摸信号线Tx1、Tx2、Tx3…中的奇数组(即，Tx1、Tx3、Tx5…)或偶数组(即，Tx2、Tx4、Tx6…)组成，并且第二多个组由多组第二触摸信号线Rx1、Rx2、Rx3…中的奇数组(即，Rx1、Rx3、Rx5…)或偶数组(即，Rx2、Rx4、Rx6…)组成。然而，应当理解，对第一多个组和第二多个组中的触摸信号线的组数与构成的选取与触摸分辨率相关，可以根据需要采用适当的配置。
特别地，在要形成第二方向上的光栅结构的情况下，提供立体显示驱动信号可以包括：向多个第一方向的透明电极条(即，Tx1、Tx2、Tx3…和COM 1)提供第一光栅驱动电压，向第二触摸信号线提供与第一光栅驱动电压相配合的第二光栅驱动电压，以及将第二非触摸信号线COM 2作为虚拟电极不接入信号。在图3所示的取向中，假定第一 方向为横向，第二方向为纵向，则提供这样的立体显示驱动信号可以在横向方向上实现自动立体显示。
特别地，在要形成第一方向上的光栅结构的情况下，提供立体显示驱动信号可以包括：向第一触摸信号线提供第一光栅驱动电压，向多个第二方向的透明电极条(即，Rx2、Rx4、Rx6…和COM 2)提供与第一光栅驱动电压相配合的第二光栅驱动电压，以及将第一非触摸信号线COM 1作为虚拟电极不接入信号。如前所述，在图3所示的取向中，提供这样的立体显示驱动信号可以在纵向方向上实现自动立体显示。
应当理解，用于第一基板201上的透明电极和第二基板202上的透明电极的具体的光栅驱动电压是本领域已知的，并且因此不需要在此详细讨论。
虽然前面的讨论包含若干特定的实现细节，但是这些不应解释为对任何发明或者可能要求保护的范围的限制，而应解释为对可能仅限于特定发明的特定实施例的特征的描述。在本说明书中不同的实施例中描述的特定特征也可以在单个实施例中以组合形式实现。与此相反，在单个实施例中描述的不同特征也可以在多个实施例中分别地或者以任何适当的子组合形式实现。此外，尽管前面可能将特征描述为以特定组合起作用，甚至最初也被如此要求保护，但是来自所要求保护的组合中的一个或多个特征在某些情况下也可以从该组合中排除，并且该要求保护的组合可以被导向子组合或子组合的变型。
类似地，虽然各个操作在附图中被描绘为按照特定的顺序，但是这不应理解为要求这些操作必须以所示的特定顺序或者按顺行次序执行，也不应理解为要求必须执行所有示出的操作以获得期望的结果。
鉴于前面的描述并结合阅读附图，对前述本发明的示例性实施例的各种修改和改动对于相关领域的技术人员可以变得显而易见。任何和所有修改仍将落入本发明的非限制性和示例性实施例的范围内。此外，属于本发明的这些实施例所属领域的技术人员，在得益于前面的描述和相关附图所给出的教导后，将会想到在此描述的本发明的其他实施例。
因此，应当理解，本发明的实施例并不限于所公开的特定实施例，并且修改和其他的实施例也意图被包含在所附权利要求书的范围内。 尽管此处使用了特定术语，但是它们仅在通用和描述性意义上使用，而非为了限制的目的。

Claims (20)

  1. 一种液晶光栅，包括：
    第一基板；
    第二基板，与所述第一基板相对设置；
    液晶层，布置在所述第一基板和所述第二基板之间；
    第一透明电极层，形成在所述第一基板的与所述第二基板相对的一侧上并且包括多个第一方向的透明电极条；以及
    第二透明电极层，形成在所述第二基板的与所述第一基板相对的一侧上并且包括多个第二方向的透明电极条，所述第二方向垂直于所述第一方向；
    其中，所述第一方向的透明电极条和所述第二方向的透明电极条适合于由立体显示驱动信号驱动以使所述液晶层形成所述第一方向或所述第二方向上的光栅结构；
    并且其中，所述多个第一方向的透明电极条包括多条第一触摸信号线，并且所述多个第二方向的透明电极条包括多条第二触摸信号线，所述第一触摸信号线和所述第二触摸信号线适合于由触摸驱动信号驱动以实现触摸定位。
  2. 根据权利要求1所述的液晶光栅，其中，所述多条第一触摸信号线包括并行排列且相互独立的多组第一触摸信号线，每组包括至少一条触摸信号线。
  3. 根据权利要求2所述的液晶光栅，其中，所述多个第一方向的透明电极条还包括互连的多条第一非触摸信号线，该多条第一非触摸信号线中的每一条与所述多条第一触摸信号线中的每一条相互间隔而形成叉指状。
  4. 根据权利要求3所述的液晶光栅，其中，所述第一非触摸信号线与所述第一触摸信号线具有相同的线宽。
  5. 根据权利要求4所述的液晶光栅，其中，相邻的第一非触摸信号线与第一触摸信号线之间的间距和所述线宽之和为约1个像素的宽度或亚像素宽度。
  6. 根据权利要求1所述的液晶光栅，其中，所述多条第二触摸信号线包括并行排列且相互独立的多组第二触摸信号线，每组包括至少 一条触摸信号线。
  7. 根据权利要求6所述的液晶光栅，其中，所述多个第二方向的透明电极条还包括互连的多条第二非触摸信号线，该多条第二非触摸信号线中的每一条与所述多条第二触摸信号线中的每一条相互间隔而形成叉指状。
  8. 根据权利要求7所述的液晶光栅，其中，所述第二非触摸信号线与所述第二触摸信号线具有相同的线宽。
  9. 根据权利要求8所述的液晶光栅，其中，相邻的第二非触摸信号线与第二触摸信号线之间的间距和所述线宽之和为约1个像素的宽度或亚像素宽度。
  10. 根据权利要求1所述的液晶光栅，其中，所述第一触摸信号线为触摸信号驱动线，并且所述第二触摸信号线为触摸信号感测线。
  11. 根据权利要求1所述的液晶光栅，其中，所述透明电极条为氧化铟锡材料。
  12. 一种显示装置，包括：
    显示面板；以及
    根据权利要求1-11中任一项所述的液晶光栅，
    其中，所述液晶光栅被布置成位于所述显示面板的出光侧。
  13. 根据权利要求12所述的显示装置，其中，所述液晶光栅被布置成使得所述第一基板在所述显示面板的出光方向上比所述第二基板远离所述显示面板。
  14. 根据权利要求12所述的显示装置，其中，所述液晶光栅被布置成使得所述第二基板在所述显示面板的出光方向上比所述第一基板远离所述显示面板。
  15. 根据权利要求12所述的显示装置，其中，所述显示装置还包括驱动芯片，所述驱动芯片被配置成以时分方式向所述液晶光栅分别提供触摸驱动信号和立体显示驱动信号，或者以预定的时间间隔仅提供触摸驱动信号，所述触摸驱动信号驱动所述第一触摸信号线和所述第二触摸信号线以实现触摸定位，所述立体显示驱动信号驱动所述第一方向的透明电极条和所述第二方向的透明电极条以使所述液晶层形成所述第一方向或所述第二方向上的光栅结构。
  16. 一种用于驱动根据权利要求12所述的显示装置的方法，包括：
    以时分方式向所述液晶光栅分别提供触摸驱动信号和立体显示驱动信号，或者以预定的时间间隔仅提供触摸驱动信号，
    其中，所述触摸驱动信号驱动所述第一触摸信号线和所述第二触摸信号线以实现触摸定位，并且所述立体显示驱动信号驱动所述第一方向的透明电极条和所述第二方向的透明电极条以使所述液晶层形成所述第一方向或所述第二方向上的光栅结构。
  17. 根据权利要求16所述的方法，其中，所述多条第一触摸信号线包括并行排列且相互独立的多组第一触摸信号线，每组包括至少一条触摸信号线；所述多个第一方向的透明电极条还包括互连的多条第一非触摸信号线，该多条第一非触摸信号线中的每一条与所述多条第一触摸信号线中的每一条相互间隔而形成叉指状；所述多条第二触摸信号线包括并行排列且相互独立的多组第二触摸信号线，每组包括至少一条触摸信号线；以及所述多个第二方向的透明电极条还包括互连的多条第二非触摸信号线，该多条第二非触摸信号线中的每一条与所述多条第二触摸信号线中的每一条相互间隔而形成叉指状，并且其中，提供所述触摸驱动信号包括：
    向所述多组第一触摸信号线中的第一多个组提供触摸控制驱动信号，
    向所述多组第二触摸信号线中的第二多个组提供触摸控制感测信号，以及
    将所述多组第一触摸信号线中的剩余组中的触摸信号线、所述多组第二触摸信号线中的剩余组中的触摸信号线、所述第一非触摸信号线和所述第二非触摸信号线作为虚拟电极不接入信号。
  18. 根据权利要求17所述的方法，其中，所述第一多个组由所述多组第一触摸信号线中的奇数组或偶数组组成，并且所述第二多个组由所述多组第二触摸信号线中的奇数组或偶数组组成。
  19. 根据权利要求17所述的方法，其中，所述液晶层形成所述第二方向上的光栅结构，并且其中，提供所述立体显示驱动信号包括：
    向所述第一方向的透明电极条提供第一光栅驱动电压，
    向所述第二触摸信号线提供与所述第一光栅驱动电压相配合的第二光栅驱动电压，以及
    将所述第二非触摸信号线作为虚拟电极不接入信号。
  20. 根据权利要求17所述的方法，其中，所述液晶层形成所述第一方向上的光栅结构，并且其中，提供所述立体显示驱动信号包括：
    向所述第一触摸信号线提供第一光栅驱动电压，
    向所述第二方向的透明电极条提供与所述第一光栅驱动电压相配合的第二光栅驱动电压，以及
    将所述第一非触摸信号线作为虚拟电极不接入信号。
PCT/CN2015/087757 2015-02-15 2015-08-21 液晶光栅、显示装置及其驱动方法 Ceased WO2016127620A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/905,309 US20160370921A1 (en) 2015-02-15 2015-08-21 Liquid crystal grating, display device and drive method thereof

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201510081328.5A CN104820319B (zh) 2015-02-15 2015-02-15 液晶光栅、显示装置及其驱动方法
CN201510081328.5 2015-02-15

Publications (1)

Publication Number Publication Date
WO2016127620A1 true WO2016127620A1 (zh) 2016-08-18

Family

ID=53730654

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2015/087757 Ceased WO2016127620A1 (zh) 2015-02-15 2015-08-21 液晶光栅、显示装置及其驱动方法

Country Status (3)

Country Link
US (1) US20160370921A1 (zh)
CN (1) CN104820319B (zh)
WO (1) WO2016127620A1 (zh)

Families Citing this family (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104820319B (zh) * 2015-02-15 2018-02-06 京东方科技集团股份有限公司 液晶光栅、显示装置及其驱动方法
CN104950462B (zh) * 2015-07-21 2017-05-10 京东方科技集团股份有限公司 一种3d显示装置及其工作方法
JP2017138447A (ja) * 2016-02-03 2017-08-10 株式会社ジャパンディスプレイ パララックスバリアパネル、パララックスバリアパネルの駆動方法、及びパララックスバリアパネルを用いた表示装置
CN105760017A (zh) * 2016-02-17 2016-07-13 京东方科技集团股份有限公司 一种触摸屏的驱动方法和驱动集成电路
CN106292087A (zh) * 2016-09-07 2017-01-04 万维云视（上海）数码科技有限公司 一种液晶光栅、显示装置及驱动方法
CN106527012B (zh) * 2017-01-03 2019-05-10 京东方科技集团股份有限公司 光栅驱动电路、光栅控制系统和3d显示装置
CN106873283A (zh) * 2017-03-17 2017-06-20 京东方科技集团股份有限公司 显示器件、显示装置和显示方法

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102262478A (zh) * 2011-05-20 2011-11-30 深圳超多维光电子有限公司 触摸式液晶狭缝光栅、立体显示装置以及计算机系统
CN103091909A (zh) * 2013-01-29 2013-05-08 北京京东方光电科技有限公司 一种触控3d显示模组及其制作方法和触控3d显示装置
CN103293778A (zh) * 2012-03-31 2013-09-11 上海天马微电子有限公司 一种触摸液晶光栅装置和3d/2d平板显示装置
US20130314624A1 (en) * 2012-05-24 2013-11-28 Chunghwa Picture Tubes, Ltd. Panel Structure
CN103941445A (zh) * 2013-06-28 2014-07-23 上海中航光电子有限公司 一种液晶盒及包含该液晶盒的控制方法
CN104090697A (zh) * 2014-06-30 2014-10-08 京东方科技集团股份有限公司 电容式内嵌触摸屏及其触摸定位方法和显示装置
CN104123038A (zh) * 2014-07-08 2014-10-29 京东方科技集团股份有限公司 一种触摸式三维光栅及显示装置
CN104820319A (zh) * 2015-02-15 2015-08-05 京东方科技集团股份有限公司 液晶光栅、显示装置及其驱动方法

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2012121091A1 (ja) * 2011-03-07 2012-09-13 シャープ株式会社 タッチパネル制御回路、表示装置の駆動回路、および表示装置
WO2013121982A1 (ja) * 2012-02-15 2013-08-22 シャープ株式会社 立体表示装置
CN103777391A (zh) * 2012-10-23 2014-05-07 瀚宇彩晶股份有限公司 三维触控显示面板及其操作方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102262478A (zh) * 2011-05-20 2011-11-30 深圳超多维光电子有限公司 触摸式液晶狭缝光栅、立体显示装置以及计算机系统
CN103293778A (zh) * 2012-03-31 2013-09-11 上海天马微电子有限公司 一种触摸液晶光栅装置和3d/2d平板显示装置
US20130314624A1 (en) * 2012-05-24 2013-11-28 Chunghwa Picture Tubes, Ltd. Panel Structure
CN103091909A (zh) * 2013-01-29 2013-05-08 北京京东方光电科技有限公司 一种触控3d显示模组及其制作方法和触控3d显示装置
CN103941445A (zh) * 2013-06-28 2014-07-23 上海中航光电子有限公司 一种液晶盒及包含该液晶盒的控制方法
CN104090697A (zh) * 2014-06-30 2014-10-08 京东方科技集团股份有限公司 电容式内嵌触摸屏及其触摸定位方法和显示装置
CN104123038A (zh) * 2014-07-08 2014-10-29 京东方科技集团股份有限公司 一种触摸式三维光栅及显示装置
CN104820319A (zh) * 2015-02-15 2015-08-05 京东方科技集团股份有限公司 液晶光栅、显示装置及其驱动方法

Also Published As

Publication number Publication date
CN104820319A (zh) 2015-08-05
US20160370921A1 (en) 2016-12-22
CN104820319B (zh) 2018-02-06

Similar Documents

Publication Publication Date Title
JP5714890B2 (ja) タッチスクリーンパネル内蔵型立体映像平板表示装置
WO2016127620A1 (zh) 液晶光栅、显示装置及其驱动方法
CN103955309B (zh) 显示面板及其驱动方法、显示装置
CN105425403B (zh) 显示装置
CN103116233B (zh) 一种触摸液晶光栅结构及3d触摸显示装置
US9185396B2 (en) Lens module and display apparatus having the same
KR102199610B1 (ko) 영상 표시 장치
US10495891B2 (en) Three-dimensional (3D) display device
EP2525248B1 (en) Autostereoscopic touch-sensing display apparatus
EP3200013A1 (en) 3d touch display device, manufacturing method for same, and driving method therefor
CN104849886A (zh) 显示装置及其驱动方法、制作方法
CN102830839A (zh) 一种3d触摸显示器
CN104317134B (zh) 触摸光栅盒和触摸立体显示装置
WO2012036015A1 (ja) 表示装置の駆動回路、表示装置、および表示装置の駆動方法
KR101475107B1 (ko) 입체 영상 표시장치
JPWO2015049929A1 (ja) 立体表示装置
US9983445B2 (en) Liquid crystal lens panel and display device including liquid crystal lens panel
CN206541108U (zh) 液晶狭缝光栅、立体显示装置及智能终端
KR20110113872A (ko) 입체영상 표시장치
US10146378B2 (en) Touch sensible optical system and display device including the same
KR102307203B1 (ko) 입체영상 표시장치
KR20150054212A (ko) 표시 장치 및 이를 위한 액정 렌즈 패널 장치

Legal Events

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

Ref document number: 14905309

Country of ref document: US

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

Ref document number: 15881776

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

32PN Ep: public notification in the ep bulletin as address of the adressee cannot be established

Free format text: NOTING OF LOSS OF RIGHTS PURSUANT TO RULE 112(1) EPC (EPO FORM 1205A DATED 31/01/2018)

122 Ep: pct application non-entry in european phase

Ref document number: 15881776

Country of ref document: EP

Kind code of ref document: A1