WO2017020561A1 - 防窥结构、显示面板、背光模组及显示装置 - Google Patents

防窥结构、显示面板、背光模组及显示装置 Download PDF

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Publication number
WO2017020561A1
WO2017020561A1 PCT/CN2016/071439 CN2016071439W WO2017020561A1 WO 2017020561 A1 WO2017020561 A1 WO 2017020561A1 CN 2016071439 W CN2016071439 W CN 2016071439W WO 2017020561 A1 WO2017020561 A1 WO 2017020561A1
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WIPO (PCT)
Prior art keywords
spy
display
peeping
display panel
light
Prior art date
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PCT/CN2016/071439
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English (en)
French (fr)
Inventor
毛德丰
李文波
Original Assignee
京东方科技集团股份有限公司
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Priority to US15/122,299 priority Critical patent/US20170176809A1/en
Publication of WO2017020561A1 publication Critical patent/WO2017020561A1/zh

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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
    • G02F1/1323—Arrangements for providing a switchable viewing angle
    • 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
    • G02F1/133509—Filters, e.g. light shielding masks
    • G02F1/133512—Light shielding layers, e.g. black matrix
    • 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
    • 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
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    • 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 
    • G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
    • G02F1/166—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
    • G02F1/167—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
    • G—PHYSICS
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F21/00—Security arrangements for protecting computers, components thereof, programs or data against unauthorised activity
    • G06F21/30—Authentication, i.e. establishing the identity or authorisation of security principals
    • G06F21/31—User authentication
    • G06F21/32—User authentication using biometric data, e.g. fingerprints, iris scans or voiceprints
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
    • 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
    • G02F1/133388—Constructional arrangements; Manufacturing methods with constructional differences between the display region and the peripheral region
    • 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
    • G02F1/133524—Light-guides, e.g. fibre-optic bundles, louvered or jalousie light-guides
    • 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
    • G02F1/13356—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements
    • G02F1/133562—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements on the viewer side
    • 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
    • G02F2201/44—Arrangements combining different electro-active layers, e.g. electrochromic, liquid crystal or electroluminescent layers
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/028—Improving the quality of display appearance by changing the viewing angle properties, e.g. widening the viewing angle, adapting the viewing angle to the view direction
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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    • G09G2320/06—Adjustment of display parameters
    • G09G2320/068—Adjustment of display parameters for control of viewing angle adjustment
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2358/00—Arrangements for display data security

Definitions

  • the invention belongs to the technical field of display, and particularly relates to a anti-spy structure, a display panel, a backlight module and a display device.
  • the inventors have found that at least the existing anti-spyware technology has problems in that the anti-spy display is performed on the entire display area of the display device in the prior art, and the anti-spy display of the partial display area cannot be realized.
  • a display device for example, a mobile phone
  • a personal new short message or a private content such as WeChat appears at this time
  • the existing device cannot realize the anti-spy display only in a certain part of the display area of the screen, and the display area in another part of the screen continues to play the video to others.
  • the present invention provides a peep prevention structure, a display panel, a backlight module, and a display device capable of realizing anti-spy display of a partial display area of a display device, in which the conventional display device cannot realize the anti-spy display of a part of the display area.
  • the invention provides a peep prevention structure, comprising:
  • At least one transmission region for transmitting light incident thereon;
  • At least one anti-peeping zone comprising a privacy device for anti-peeping treatment of light incident thereon such that the light is only visible at a particular location.
  • the transmission zone is composed of a transparent material.
  • the thickness of the transmission zone is the same as the thickness of the anti-seepage zone.
  • the anti-spyware device comprises any one or more of a louver anti-spy device, a liquid crystal lens anti-spy device, a grating anti-spy device and a fiber optic glass anti-spy device.
  • the present invention also provides a display panel comprising the above-described anti-spy structure.
  • the anti-spy structure is disposed on a light exiting side of the display panel.
  • the display panel is any one of an OLED display panel, an electronic paper display panel and a liquid crystal display panel, and the anti-spy structure is disposed on a light exiting side of the display panel.
  • the present invention also provides a backlight module including a light guide plate, and further comprising the above-mentioned anti-spy structure, wherein the anti-spy structure is disposed outside the light-emitting side of the light guide plate.
  • the invention also provides a display device comprising the above display panel or backlight module.
  • the display device further comprises a control unit for controlling activation or shutdown of the anti-spyware device.
  • control unit comprises a fingerprint identification system for recognizing a fingerprint and controlling activation or shutdown of the anti-spy device according to the result of identifying the fingerprint.
  • the anti-spying device is configured to change a direction of light emitted by the anti-spy zone; and the control unit is further configured to control a direction of light emitted by the anti-spy device.
  • the display device further includes a touch unit, and the control unit controls the direction of the light emitted by the anti-spy device according to the touch direction and/or the touch time detected by the touch unit.
  • the anti-spying device comprises a louver anti-spy device
  • the louver anti-spy device comprises a louver layer
  • the control unit controls a yaw direction of the louver
  • the anti-spy device is a liquid crystal lens anti-spy device, and the control unit controls a deflection direction of the liquid crystal molecules.
  • the present invention also provides a backlight module including a plurality of LED lamps, further comprising at least one anti-spy zone and a control unit, wherein the control unit controls the brightness of the LED lights in the anti-spy zone The number of lights, and the light intensity of the LED lights, The light emitted by the peep zone can be seen only at a particular location.
  • the invention also provides a display device comprising the backlight module described above.
  • the anti-spy structure of the present invention is provided with at least one anti-peeping zone and at least one transmissive zone, and the anti-peeping zone comprises a anti-peeping device, which can realize anti-peeping display, and does not affect the light transmission of the transmissive zone, and the present invention
  • the anti-spy structure is used in the display device to perform anti-spy display on a part of the display area of the display screen, and other parts of the display area are normally displayed.
  • the anti-spy structure of the present invention is applicable to various display panels, backlight modules, and display devices.
  • FIG. 1 is a schematic structural view of a privacy preventing structure according to Embodiment 2 of the present invention.
  • FIG. 2 is a schematic structural view of a display panel according to Embodiment 3 of the present invention.
  • FIG. 3 is another schematic structural view of a display panel according to Embodiment 3 of the present invention.
  • the reference numerals are: 1, anti-peep structure; 11, anti-peep area; 110, anti-spy device; 111, louver anti-spy device; 112, liquid crystal lens anti-spy device; 12, transmission area; .
  • This embodiment provides a privacy prevention structure, including:
  • At least one transmission region for transmitting light incident thereon;
  • the anti-peeping area includes a peeping device for anti-peeping treatment on the glazing thereof so that the light can only be seen at a specific position.
  • the anti-peep processing is a process of making the viewing angle of the display area small, that is, the display content on the display area can be seen only at a specific angle, and the display content on the display area is viewed from other angles. Blurred.
  • anti-peep processing can be achieved by changing the direction of light, the direction of polarization, brightness, and the like.
  • the anti-spy structure of the embodiment is provided with at least one anti-peeping zone and at least one transmissive zone, and the anti-peeping zone can perform anti-spying treatment on the illuminating light thereof, and does not affect the light transmission of the transmissive zone.
  • anti-spy structure of the present invention is used in a display device, anti-spy display can be performed on a part of the display area of the display screen, and normal display can be performed on another part of the display area of the display screen.
  • the anti-spy structure of the present invention is applicable to various display panels, backlight modules, and display devices.
  • the present embodiment provides an anti-spy structure 1 comprising at least one transmission zone 12 and at least one anti-spy zone 11.
  • the light transmitted through the region 12 is transmitted therethrough.
  • the anti-peep area 11 includes an anti-spying device 110 that is capable of performing anti-peep processing on the glazing.
  • the anti-spy structure 1 of the present embodiment is provided with at least one anti-spy zone 11 and at least one transmissive area 12, and the anti-peep area 11 can perform anti-peep processing on the light while it does not affect the transmissive area 12. Light passes through.
  • the anti-spy structure 1 of the present invention in a display device, it is possible to perform anti-spy display on a part of the display area of the display screen, and another part of the display area of the display screen is normally displayed.
  • the anti-spy structure 1 of the present invention is applicable to various display panels, backlight modules, and display devices.
  • the transmission zone 12 is composed of a transparent material.
  • the anti-spying device 11 is provided with the anti-spying device 110, and the anti-peeping area 11 is only disposed on the portion of the display screen that needs to be displayed for anti-peeping, in order to ensure the flatness of the display screen, the display screen is performed.
  • Other areas that are normally displayed are filled with a transparent material.
  • the transparent material may be selected from the group consisting of indium tin oxide (ITO), polystyrene (PS), polymethyl methacrylate (PMMA), polycarbonate (PC), and polysulfone (PSF or PSU). Any of the groups.
  • the thickness of the transmission region 12 is the same as the thickness of the anti-spy zone 11.
  • the thickness of the display area on which the anti-spy structure is disposed on the display screen and the anti-spy display is the same as the thickness of the display area in which the normal display is performed, thereby ensuring that the overall composition of the display screen and the anti-spy structure is kept flat.
  • the anti-spy device 110 includes a louver anti-spy device 111 and a liquid crystal
  • the lens anti-spying device 112 and the In cell multi-domain anti-spying device (refer to separately control the pixel domain regions of the wide and narrow viewing angles, and use different regional brightness ratios to enable the front view viewer to use the display device normally, but other angle viewers Any one or more of the grating anti-spying device and the fiber optic glass anti-spy device may be interfered by other proportioned brightness to achieve the purpose of anti-spying.
  • the present embodiment provides a display panel 2 including the anti-spy structure 1 of Embodiment 2.
  • the anti-spy structure 1 may be disposed on the surface of the display panel 2 or may be disposed in the display panel 2 and become a part of the display panel 2.
  • Setting the anti-spy structure 1 on the surface of the display panel 2 is a preferred arrangement, so that the anti-spy structure 1 can be flexibly controlled during touch control.
  • the anti-spy structure 1 is disposed on the display panel 2 side.
  • the display panel comprises any one of an OLED panel, an electronic paper display panel or a liquid crystal display panel, and the anti-spy structure is disposed on a light exiting side of the display panel.
  • the display panel 2 is a touch display panel.
  • the display panel 2 of the present embodiment can realize the anti-spy display in the partial display area of the display panel and the normal display in the other display areas.
  • This embodiment provides a backlight module including the anti-spy structure of Embodiment 2.
  • the backlight module includes a light guide plate, the light guide plate has a light exiting side, and the anti-spy structure is disposed outside the light exiting side.
  • an anti-spy BLU Anti-Peeping Backlight Module
  • a sensor and a circuit design are used to control the number of lighting of some LED lights in the backlight module, and LED lights.
  • the light intensity is such that it forms a peep-proof zone, and the brightness position of the LED lamp and the brightness value of the LED lamp are associated with the direction in which the finger is swiped on the screen film and the time the finger stays on the screen, thereby realizing the partial display area.
  • Anti-spy display is a sensor and a circuit design are used to control the number of lighting of some LED lights in the backlight module, and LED lights.
  • the light intensity is such that it forms a peep-proof zone, and the brightness position of the LED lamp and the brightness value of the LED lamp are associated with the direction in which the finger is swiped on the screen film and the time the finger stays on the screen, thereby realizing the partial display area.
  • Anti-spy display is, that is, a sensor and a circuit design are used to control the
  • the embodiment provides a display device including the display panel of Embodiment 3 or the backlight module of Embodiment 4.
  • the display panel of the third embodiment or the backlight module of the fourth embodiment is used for the display device, and the anti-spy display can be performed in the partial display area, while the other display areas are normally displayed.
  • the display device further comprises a control unit for controlling the anti-spy device 110 to be turned on or off.
  • the anti-spy structure 1 initiates anti-spying or closes anti-spying through the control unit.
  • the display device for example, a mobile phone
  • the anti-spy zone 11 of the anti-spy device 110 is in a closed state, and the normal display is performed. If the area needs to display a new short message such as a personal message or a WeChat content, the anti-spy structure 1 activates the anti-spy, the privacy content is displayed in the anti-spy zone 11 and only the individual user can view the anti-peep area.
  • the display area that is playing the video to the public is reduced to the transmission area 12, that is, the other display areas of the display screen continue to play the video to the public so as not to affect others' viewing.
  • control unit includes a fingerprint recognition system for recognizing the fingerprint and controlling the activation or shutdown of the anti-spy device 110 according to the result of identifying the fingerprint.
  • the fingerprint identification system is used to identify the individual user, thereby determining whether or not to perform the anti-peep display in the anti-peep area.
  • This method is convenient and safe.
  • the fingerprint information of the individual user has been pre-recorded in the fingerprint identification system.
  • the fingerprint recognition system processes the input fingerprint image to determine whether the user is Individual users recorded in the fingerprint identification system. Specifically, the fingerprint identification system matches the input fingerprint with the fingerprint information of the pre-recorded individual user. If the fingerprint is successfully matched, the user is determined to be the recorded individual user, and vice versa.
  • the anti-spying device 110 is used to change the direction of transmitted light; the control unit is further configured to control the direction of the light emitted by the anti-spy device 110.
  • the privacy content of the anti-spy zone 11 is for the viewer in a certain direction.
  • the privacy content can be seen in the viewing direction of the individual user, while the other user can see the privacy content. Less than privacy content.
  • the display device further includes a touch unit, and the control unit controls the direction of the light emitted by the anti-spy device 110 according to the touch direction and/or the touch time detected by the touch unit.
  • the display device controls the anti-spy device according to the touch direction and/or the touch time.
  • the direction of the light exiting 110 thereby adjusting the visual direction of the anti-peep display so that individual users can see the private content while others cannot see the private content.
  • the individual user only needs to adjust the direction of the touch operation to be consistent with the direction that is easy to see. If the touch time is long, the angle between the visible direction and the normal direction of the display screen of the display device is increased.
  • the method for controlling the direction of the light emitted by the anti-spy device 110 according to the touch direction and/or the touch time is not limited to the above manner.
  • the direction of the touch operation may be adjusted to be opposite to the direction that is easy to see.
  • the control time is long, the angle between the visible direction and the normal direction of the display screen of the display device is reduced.
  • the anti-spying device 110 comprises a louver anti-spy device 111
  • the louver anti-spy device 111 comprises a louver layer
  • the control unit controls the yaw direction of the louver.
  • the anti-spy structure 1 is disposed on the light-emitting side of the display panel 2, and the anti-peep area 11 of the anti-spy structure 1 is provided with a louver anti-spying device 111, which is designed by sensors and circuits to make the louver
  • the direction of deflection is associated with the direction in which the finger of the individual user is swiping across the screen, correlating the angle of deflection of the louver with the time the user's finger stays on the screen.
  • the anti-spy device is a liquid crystal lens anti-spy device 112, and the control unit controls a deflection direction of the liquid crystal.
  • the anti-spy structure 1 is disposed on the light-emitting side of the display panel 2, and the anti-spy zone 11 of the anti-spy structure 1 employs a liquid crystal lens anti-spying device 112, which is designed by a sensor and a circuit.
  • the direction of deflection of the molecule is associated with the direction in which the individual user's finger is swiping across the screen, causing the deflection angle to stay on the screen with the owner's finger Time association.
  • the anti-spy structure includes one transmission zone and one anti-peep zone, those skilled in the art should understand that the anti-spy structure may further include multiple transmission zones and/or multiple In the anti-peep zone, since the anti-peep zone is implemented in the same manner, it will not be detailed here.
  • the display device may be: a liquid crystal display panel, an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame. , navigation, etc. Any product or component that has a display function.

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Abstract

防窥结构（1）、显示面板（2）、背光模组及显示装置，可解决现有的显示装置不能实现部分显示区域防窥的问题。防窥结构（1），包括至少一个透过区（12），用于使射到其上的光透过；以及至少一个防窥区（11），防窥区（11）包括防窥装置（111），防窥装置（111）用于对射到其上光进行防窥处理，以使该光仅在特定位置处能够被看到。防窥结构（1）中设置至少一个防窥区（11）和至少一个透过区（12），防窥区（11）可以对光进行防窥处理，同时其不影响透过区（12）的光透过，将防窥结构（1）用于显示装置中可以实现在显示屏的一部分显示区域进行防窥显示。防窥结构（1）适用于各种显示面板（2）、背光模组及显示装置。

Description

防窥结构、显示面板、背光模组及显示装置 技术领域
本发明属于显示技术领域，具体涉及防窥结构、显示面板、背光模组及显示装置。
背景技术
随着科技的进步，便携显示装置越来越普及，例如人们在坐车或等车的过程中，通常都在通过手机或平板电脑进行阅读、学习或进行短信交流，但是由于车上人多，自己手机或平板电脑上显示的内容可能会被邻近者窥视到，信息可能会被泄露出去，导致自己的隐私得不到保护，给用户带来不便。目前市场上通常都是通过在显示装置上贴制防窥片来保护用户的隐私。
发明人发现现有的防窥技术中至少存在如下问题：现有技术中针对显示装置整个显示区域进行防窥显示，而不能实现部分显示区域的防窥显示。例如，当个人用户的显示装置(例如手机)给公众播放视频供他人观看时，若此时出现个人新的短信或微信等隐私内容，则希望仅对这些隐私内容的显示区域实现防窥显示，但现有的设备不能实现仅在屏幕的某一部分显示区域进行防窥显示，而在屏幕的另一部分显示区域继续给他人播放视频。
发明内容
本发明针对现有的显示装置不能实现部分显示区域的防窥显示的问题，提供了能够实现显示装置的部分显示区域的防窥显示的防窥结构、显示面板、背光模组及显示装置。
本发明提供了一种防窥结构，包括：
至少一个透过区，用于使射到其上的光透过；以及
至少一个防窥区，所述防窥区包括防窥装置，所述防窥装置用于对射到其上的光进行防窥处理，以使该光仅在特定位置处能够被看到。
优选的，所述透过区由透明材料构成。
优选的，所述透过区的厚度与所述防窥区的厚度相同。
优选的，所述防窥装置包括百叶窗防窥装置、液晶透镜防窥装置、光栅防窥装置和光纤玻璃防窥装置中的任意一种或几种。
本发明还提供了一种显示面板，包括上述的防窥结构。
优选的，所述防窥结构设于所述显示面板的出光侧。
优选的，所述显示面板为OLED显示面板、电子纸显示面板和液晶显示面板中的任一种，所述防窥结构设置于所述显示面板的出光侧。
本发明还提供一种背光模组，其包括导光板，并且还包括上述的防窥结构，其中，所述防窥结构设置于所述导光板的出光侧之外。
本发明还提供了一种显示装置，包括上述的显示面板或背光模组。
优选的，所述显示装置还包括控制单元，用于控制所述防窥装置的启动或关闭。
优选的，所述控制单元包括指纹识别系统，用于识别指纹，并根据识别指纹的结果控制防窥装置的启动或关闭。
优选的，所述防窥装置用于改变所述防窥区的出光的方向；所述控制单元还用于控制所述防窥装置的出光的方向。
优选的，所述显示装置还包括触控单元，所述控制单元根据所述触控单元检测到的触控方向和/或触控时间控制防窥装置的出光的方向。
优选的，所述防窥装置包括百叶窗防窥装置，所述百叶窗防窥装置包括百叶窗层，所述控制单元控制所述百叶窗的偏转方向。
优选的，所述防窥装置为液晶透镜防窥装置，所述控制单元控制液晶分子的偏转方向。
本发明还提供了一种背光模组，其包括多个LED灯，其特征在于，还包括至少一个防窥区和控制单元，其中，所述控制单元控制所述防窥区中LED灯的亮灯数量、及LED灯的光强度，以 使所述防窥区发出的光仅在特定位置处能够被看到。
本发明还提供了一种显示装置，其包括上述的背光模组。
本发明的防窥结构中设置至少一个防窥区和至少一个透过区，防窥区包括防窥装置，可以实现防窥显示，同时其不影响透过区的光透过，将本发明的防窥结构用于显示装置中可以实现在显示屏的部分显示区域进行防窥显示，其它部分显示区域正常进行显示。本发明的防窥结构适用于各种显示面板、背光模组及显示装置。
附图说明
图1为本发明的实施例2的防窥结构的结构示意图；
图2为本发明的实施例3的显示面板的一种结构示意图；
图3为本发明的实施例3的显示面板的另一种结构示意图；
其中，附图标记为：1、防窥结构；11、防窥区；110、防窥装置；111、百叶窗防窥装置；112、液晶透镜防窥装置；12、透过区；2、显示面板。
具体实施方式
为使本领域技术人员更好地理解本发明的技术方案，下面结合附图和具体实施方式对本发明作进一步详细描述。
实施例1：
本实施例提供了一种防窥结构，其包括：
至少一个透过区，用于使射到其上的光透过；
以及至少一个防窥区，防窥区包括防窥装置，防窥装置用于对射到其上光进行防窥处理，以使该光仅能在特定位置处被看到。
防窥处理是这样的一种处理：使得显示区域的可视角度变小，即，只有在特定的角度才能看清显示区域上的显示内容，而从其它角度观看，显示区域上的显示内容是模糊的。例如，防窥处理可以通过改变光的方向、偏振方向、亮度等来实现。
本实施例的防窥结构中设置有至少一个防窥区和至少一个透过区，防窥区可以对射到其上光进行防窥处理，同时其不影响透过区的光透过。将本发明的防窥结构用于显示装置中可以实现在显示屏的一部分显示区域进行防窥显示，而在显示屏的另一部分显示区域进行正常显示。本发明的防窥结构适用于各种显示面板、背光模组及显示装置。
实施例2：
如图1至图3所示，本实施例提供了一种防窥结构1，其包括至少一个透过区12和至少一个防窥区11。透过区12使射到其上的光能够从中透过。防窥区11包括防窥装置110，防窥装置110能够对射到其上光进行防窥处理。
也就是说，本实施例的防窥结构1中设置有至少一个防窥区11和至少一个透过区12，防窥区11可以对光进行防窥处理，同时其不影响透过区12的光透过。将本发明的防窥结构1用于显示装置中就可以实现在显示屏的一部分显示区域进行防窥显示，而显示屏的另一部分显示区域进行正常显示。本发明的防窥结构1适用于各种显示面板、背光模组及显示装置。
优选的，所述透过区12由透明材料构成。
也就是说，由于防窥区11中设置有防窥装置110，并且防窥区11仅设置于显示屏的需要进行防窥显示的部分，因此，为了保证显示屏的平整，在显示屏的进行正常显示的其他区域填充有透明材料。其中，所述透明材料可以是选自由氧化铟锡(ITO)、聚苯乙烯(PS)、聚甲基丙烯酸甲酯(PMMA)、聚碳酸酯(PC)和聚砜(PSF或PSU)等组成的组中的任意一种。
优选的，所述透过区12的厚度与所述防窥区11的厚度相同。
也就是说，防窥结构设置于显示屏的需要进行防窥显示的显示区域的厚度与进行正常显示的显示区域的厚度相同，从而保证了显示屏和防窥结构组成的整体保持平整。
优选的，所述防窥装置110包括百叶窗防窥装置111、液晶 透镜防窥装置112、In cell多畴防窥装置(是指对宽窄视角的像素畴区进行分别控制，利用不同区域性的亮度配比让正视者可以正常使用显示装置，但其他角度观看者就会被其它配比出来的亮度所干扰，从而达到防窥的目的)、光栅防窥装置和光纤玻璃防窥装置中的任意一种或几种。
实施例3：
如图1至图3所示，本实施例提供了一种显示面板2，其包括实施例2的防窥结构1。
防窥结构1可以设置在显示面板2的表面上(on cell)，也可以设置在显示面板2中，并成为显示面板2的一部分。
将防窥结构1设置在显示面板2的表面上是比较优选的设置方式，这样便于触控时灵活控制防窥结构1，在此情况中，防窥结构1设置于所述显示面板2的出光侧。
优选的，所述显示面板包括OLED面板、电子纸显示面板或液晶显示面板中的任一种，所述防窥结构设于所述显示面板的出光侧。优选的，所述显示面板2为触控显示面板。
本实施例的显示面板2可以实现在显示面板的部分显示区域进行防窥显示，而在其他显示区域进行正常显示。
实施例4：
本实施例提供了一种背光模组，其包括实施例2的防窥结构。
优选的，所述背光模组包括导光板，所述导光板具有出光侧，所述防窥结构设置于出光侧之外。
此外，作为本实施例的另一种实施方式，可以采用防窥BLU(防窥背光模组)，也就是通过传感器和电路设计，控制背光模组中部分LED灯的亮灯数量、及LED灯的光强度，使之形成防窥区，LED灯的亮灯位置及LED灯的亮度值与手指在屏膜上划过的方向和手指在屏上停留的时间相关联，从而实现部分显示区域的防窥显示。
实施例5：
本实施例提供了一种显示装置，其包括实施例3的显示面板或实施例4的背光模组。
也就是说，将实施例3的显示面板或实施例4的背光模组用于显示装置，可以实现在部分显示区域进行防窥显示，而其他显示区域进行正常显示。
优选的，显示装置还包括控制单元，用于控制防窥装置110启动或关闭。
也就是说，防窥结构1通过控制单元进行启动防窥或关闭防窥。具体应用中，当个人用户的显示装置(例如手机)正常的给公众播放视频供他人观看时，防窥装置110的防窥区11处于关闭状态，进行正常显示。若此时该区域需要显示个人用户新的短信或微信等隐私内容时，则防窥结构1启动防窥，隐私内容在防窥区11进行防窥显示，并且只有个人用户可以观看到防窥区11的显示内容，他人不能看到此时刻防窥区11上所显示的隐私内容。同时，正在给公众播放视频的显示区域缩小到透过区12，即显示屏的其他显示区域继续给公众播放视频从而不影响他人观看。
优选的，控制单元包括指纹识别系统，用于识别指纹，并根据识别指纹的结果控制防窥装置110的启动或关闭。
也就是说，采用指纹识别系统识别个人用户，从而决定是否在防窥区进行防窥显示。这种方式比较便捷、安全。其中，指纹识别系统中已经预先录入了个人用户的指纹信息，当每次有用户想要通过指纹输入而启动防窥显示时，指纹识别系统会对输入的指纹图像进行处理，从而判断用户是否为指纹识别系统中记录的个人用户。具体的，指纹识别系统会将输入的指纹与预先录入的个人用户的指纹信息进行特征匹配，若成功匹配，则判断该用户是记录的个人用户，反之，则不是。
优选的，所述防窥装置110用于改变透过光的方向；控制单元还用于控制防窥装置110的出光的方向。
也就是说，防窥区11的隐私内容针对一定方向的观看者进行防窥，当个人用户启动防窥显示阅读隐私内容时，个人用户的观看方向上可以看到隐私内容，而在其他方向看不到隐私内容。
优选的，所述显示装置还包括触控单元，所述控制单元根据触控单元检测到的触控方向和/或触控时间来控制防窥装置110的出光的方向。
也就是说，当个人用户启动防窥时触摸屏幕，若指纹成功匹配，则判断该用户是记录的个人用户，接下来，显示装置根据触控方向和/或触控时间，来控制防窥装置110的出光的方向，从而调节防窥显示的可视方向，使个人用户可以看见隐私内容，而其他人看不到隐私内容。具体的，个人用户只需通过调整触控操作的方向与自己易于看到的方向一致即可，若触控时间长，则增加可视方向与显示装置的显示屏的法线方向的夹角。显示装置根据触控方向和/或触控时间来控制防窥装置110的出光的方向的方法不限于上述方式，比如，也可以调整触控操作的方向与自己易于看到的方向相反，若触控时间长，则减小可视方向与显示装置的显示屏的法线方向的夹角等。
优选的，防窥装置110包括百叶窗防窥装置111，百叶窗防窥装置111包括百叶窗层，控制单元控制百叶窗的偏转方向。
也就是说，如图2所示，将防窥结构1设置于显示面板2的出光侧，并且防窥结构1的防窥区11采用百叶窗防窥装置111，通过传感器和电路设计，使百叶窗的偏转方向与个人用户的手指在屏膜上划过的方向相关联，使百叶窗的偏转角度与用户手指在屏上停留的时间相关联。
优选的，所述防窥装置为液晶透镜防窥装置112，所述控制单元控制液晶的偏转方向。
也就是说，如图3所示，将防窥结构1设置于显示面板2的出光侧，并且防窥结构1的防窥区11采用液晶透镜防窥装置112，通过传感器和电路设计，使液晶分子的偏转方向与个人用户手指在屏膜上划过的方向相关联，使偏转角度与主人手指在屏上停留 的时间关联。
在上述各实施例中，虽然仅示出了防窥结构包括一个透过区和一个防窥区，但是本领域技术人员应该明白，防窥结构还可以包括多个透过区和/或多个防窥区，由于防窥区的实现方式相同，因此这里不再一一详述。
显然，上述各实施例的具体实施方式还可进行许多变化；例如：所述显示装置可以为：液晶显示面板、电子纸、OLED面板、手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。

Claims (17)

  1. 一种防窥结构，其特征在于，包括：
    至少一个透过区，用于使射到其上的光透过；以及
    至少一个防窥区，所述防窥区包括防窥装置，所述防窥装置用于对射到其上的光进行防窥处理，以使该光仅在特定位置处能够被看到。
  2. 根据权利要求1所述的防窥结构，其特征在于，所述透过区由透明材料构成。
  3. 根据权利要求1所述的防窥结构，其特征在于，所述透过区的厚度与所述防窥区的厚度相同。
  4. 根据权利要求1所述的防窥结构，其特征在于，所述防窥装置包括百叶窗防窥装置、液晶透镜防窥装置、光栅防窥装置和光纤玻璃防窥装置中的任意一种或几种。
  5. 一种显示面板，其特征在于，包括权利要求1-4中任一项所述的防窥结构。
  6. 根据权利要求5所述的显示面板，其特征在于，所述防窥结构设置于所述显示面板的出光侧。
  7. 根据权利要求5所述的显示面板，其特征在于，所述显示面板为OLED显示面板、电子纸显示面板和液晶显示面板中的任一种，所述防窥结构设置于所述显示面板的出光侧。
  8. 一种背光模组，其包括导光板，其特征在于，还包括权利要求1-4中任一项所述的防窥结构，其中，所述防窥结构设置于 所述导光板的出光侧之外。
  9. 一种背光模组，其包括多个LED灯，其特征在于，还包括至少一个防窥区和控制单元，其中，所述控制单元控制所述防窥区中LED灯的亮灯数量、及LED灯的光强度，以使所述防窥区发出的光仅在特定位置处能够被看到。
  10. 一种显示装置，其特征在于，包括权利要求5-7中任一项所述的显示面板或权利要求8所述的背光模组。
  11. 根据权利要求10所述的显示装置，其特征在于，所述显示装置还包括控制单元，用于控制所述防窥装置的启动或关闭。
  12. 根据权利要求11所述的显示装置，其特征在于，所述控制单元包括指纹识别系统，用于识别指纹，并根据识别指纹的结果控制所述防窥装置的启动或关闭。
  13. 根据权利要求11所述的显示装置，其特征在于，所述防窥装置用于改变所述防窥区的出光的方向；所述控制单元还用于控制所述防窥装置的出光的方向。
  14. 根据权利要求13所述的显示装置，其特征在于，所述显示装置还包括触控单元，所述控制单元根据所述触控单元检测到的触控方向和/或触控时间控制所述防窥装置的出光的方向。
  15. 根据权利要求13所述的显示装置，其特征在于，所述防窥装置包括百叶窗防窥装置，所述百叶窗防窥装置包括百叶窗层，所述控制单元控制所述百叶窗的偏转方向。
  16. 根据权利要求13所述的显示装置，其特征在于，所述防 窥装置为液晶透镜防窥装置，所述控制单元控制液晶分子的偏转方向。
  17. 一种显示装置，其特征在于，包括权利要求9所述的背光模组。
PCT/CN2016/071439 2015-08-06 2016-01-20 防窥结构、显示面板、背光模组及显示装置 WO2017020561A1 (zh)

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