WO2017054386A1 - 显示装置、背光设备及光源组件 - Google Patents

显示装置、背光设备及光源组件 Download PDF

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Publication number
WO2017054386A1
WO2017054386A1 PCT/CN2016/073240 CN2016073240W WO2017054386A1 WO 2017054386 A1 WO2017054386 A1 WO 2017054386A1 CN 2016073240 W CN2016073240 W CN 2016073240W WO 2017054386 A1 WO2017054386 A1 WO 2017054386A1
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WO
WIPO (PCT)
Prior art keywords
light source
light
backlight
interference light
display panel
Prior art date
Application number
PCT/CN2016/073240
Other languages
English (en)
French (fr)
Inventor
李文波
Original Assignee
京东方科技集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/107,058 priority Critical patent/US10444565B2/en
Priority to EP16728577.4A priority patent/EP3358399A4/en
Publication of WO2017054386A1 publication Critical patent/WO2017054386A1/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
    • G02F1/133—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
    • G02F1/1336—Illuminating devices
    • G02F1/133602—Direct backlight
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133615—Edge-illuminating devices, i.e. illuminating from the side
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0043—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided on the surface of the light guide
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0066—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form characterised by the light source being coupled to the light guide
    • G02B6/0068—Arrangements of plural sources, e.g. multi-colour light sources
    • 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 
    • G02F1/165—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
    • G06F21/70—Protecting specific internal or peripheral components, in which the protection of a component leads to protection of the entire computer
    • G06F21/82—Protecting input, output or interconnection devices
    • G06F21/84—Protecting input, output or interconnection devices output devices, e.g. displays or monitors
    • 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
    • G09G3/3406—Control of illumination source
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/80—Constructional details
    • H10K59/88—Dummy elements, i.e. elements having non-functional features
    • 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
    • G02F1/1336—Illuminating devices
    • G02F1/133624—Illuminating devices characterised by their spectral emissions
    • 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
    • G02F2203/00—Function characteristic
    • G02F2203/11—Function characteristic involving infrared radiation
    • 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 present disclosure relates to the field of display technologies, and in particular, to a display device, a backlight device, and a light source assembly.
  • the technological innovation in the field of liquid crystal display is inseparable from the satisfaction of the various needs of users and the disruptive creation of the products that the developers never satisfy. Defects in the product itself will prompt researchers to continuously improve the product. For example, (1) based on the viewing angle problem of the liquid crystal itself, an Advanced Super Dimension Switch (ADS), In-Plane Switching (IPS), and multi-quadrant vertical alignment ( Multi-domain Vertical Alignment (MVA) and other wide-angle mode applications and promotion; (2) using the narrow viewing angle of liquid crystal and other auxiliary means, the normal display area is limited to the narrow front view area, you can It plays a role in protecting privacy and thus achieves anti-peeping functions.
  • ADS Advanced Super Dimension Switch
  • IPS In-Plane Switching
  • MVA Multi-domain Vertical Alignment
  • the normal display area is limited to the narrow front view area, you can It plays a role in protecting privacy and thus achieves anti-peeping functions.
  • the main purpose of the present disclosure is to provide an interference light source that can be sensed by the naked eye, which can be sensed by the naked eye, to interfere with the display screen or the object, thereby ensuring normal display of the screen without affecting the user's viewing, and preventing others from sneak shots.
  • a technical solution for displaying information is to provide an interference light source that can be sensed by the naked eye, which can be sensed by the naked eye, to interfere with the display screen or the object, thereby ensuring normal display of the screen without affecting the user's viewing, and preventing others from sneak shots.
  • the present disclosure provides a display device including: a display panel; and an interference light source for forming interference light on a display side of the display panel, the interference light being non-visible light.
  • the display panel is a liquid crystal display panel.
  • the display device further includes: a light guide plate and configured to provide the liquid crystal display panel a backlight that displays the required visible light; the interference light source and the backlight are both disposed on a light incident surface side of the light guide plate, and the non-visible light emitted by the interference light source reaches the liquid crystal display through the light guide plate a panel, and the interference light is formed on a display side of the liquid crystal display panel.
  • the backlight is a side-in type backlight
  • the display device further includes: a first light strip for setting the side-entry backlight, the interference light source and the side-entry backlight
  • the first light strip is disposed along a longitudinal direction of a plane of the first light strip opposite to the light guide plate.
  • the backlight is a side-in type backlight
  • the display device further includes: a first light strip for setting the side-entry backlight, the interference light source and the side-entry backlight And stacked on the first light strip along a short side direction of a plane of the first light strip opposite to the light guide plate.
  • the backlight is a side-in type backlight
  • the display device further includes: a first light strip for setting the side-entry backlight, and a side along the side of the light guide plate
  • the first light bar is oppositely disposed or adjacent to the second light bar
  • the interference light source is disposed on the second light bar, wherein the shape of the second light bar is a linear type or a corner type.
  • the backlight is a direct type backlight
  • the display device further includes: the interference light source is spaced apart from the direct type backlight.
  • the display panel is an organic light emitting diode (OLED) panel or an electrophoretic display panel.
  • OLED organic light emitting diode
  • the interference light source is disposed around the OLED panel or the electrophoretic display panel.
  • the interference light source is inclined at a predetermined angle toward a center of the OLED panel or the electrophoretic display panel, so that the interference light emitted by the interference light source can completely cover the OLED panel or the electrophoretic display panel. Display area.
  • the interference light source is an infrared light emitting device.
  • the present disclosure also provides a backlight device for providing backlighting for a liquid crystal display panel, comprising: an interference light source for forming interference light on a display side of the liquid crystal display panel, the interference light being non-visible light.
  • the present disclosure also provides a light source assembly, comprising: an interference light source disposed around the object to be interfered, the object to be interfered is a display device, the light source capable of forming interference light on a surface of the object to be interfered, the interference The light is non-visible.
  • the light source assembly further includes: a frame for encapsulating the object to be interfered, the interference light source being disposed on the frame.
  • the display device, the backlight and the light source assembly of the present disclosure use a light source that can emit light that is invisible to the naked eye but can be sensed by the photographing device as an interference light source. Since the user can not see the light emitted by the interference light source, it does not affect the user's viewing of the display screen, but the shooting device can sense the light emitted by the interference light source, so if someone uses the shooting device to shoot the normally displayed picture, the shooting will be seriously affected. result. In this way, the user does not have to worry about the display screen being photographed by others, which greatly protects the user's privacy or the security of the display screen.
  • FIG. 1 is a schematic structural view of a display device according to an embodiment of the present disclosure
  • FIG. 2 is a schematic diagram showing relative positions of components in a liquid crystal display panel according to an embodiment of the present disclosure
  • FIG. 3 is a schematic diagram showing an arrangement of an interference light source and a side-entry backlight in a liquid crystal display panel according to an embodiment of the present disclosure
  • FIG. 4A is a top plan view showing an arrangement of an interference light source and a side-entry backlight in a liquid crystal display panel according to an embodiment of the present disclosure
  • 4B is a front view showing the arrangement of the interference light source and the side-entry backlight in the liquid crystal display panel according to the embodiment of the present disclosure
  • 4C is a right side view showing the arrangement of the interference light source and the side-entry backlight in the liquid crystal display panel according to the embodiment of the present disclosure
  • FIG. 5 is a schematic diagram of a three-way arrangement of an interference light source and a side-entry backlight in a liquid crystal display panel according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of a four-way arrangement of an interference light source and a direct type backlight in a liquid crystal display panel according to an embodiment of the present disclosure
  • FIG. 7 is a schematic diagram of only setting an interference light source around an OLED panel or an electrophoretic display panel according to an embodiment of the present disclosure
  • FIG. 8 is a schematic diagram of providing an oblique interference light source in an OLED panel or an electrophoretic display panel according to an embodiment of the present disclosure
  • FIG. 9 is a schematic diagram of simultaneously providing a visible light source and an interference light source around an electrophoretic display panel, in accordance with an embodiment of the present disclosure.
  • FIG. 1 is a schematic structural view of a display device according to an embodiment of the present disclosure.
  • the display device includes: a display panel 1; and an interference light source (FIG. 1 only schematically shows that the interference light source generates interference light) for forming interference light on the display side of the display panel 1 (ie, The dotted line with an arrow, the interfering light is non-visible light.
  • FIG. 1 does not show the structure and arrangement position of the interference light source, because the structure of the interference light source can be designed into different structures according to the type of the display panel 1, and different setting positions are adopted to adapt to different types of display.
  • the panel 1 achieves the purpose of effectively interfering with the display content of the display panel 1.
  • the interference light source is provided to generate interference light
  • the interference light can form an effective interference on the display screen of the display panel on the display side of the display panel, so as to prevent the display screen from being photographed by others using the photographing device.
  • the purpose is to effectively protect the privacy of users.
  • the display panel may include: a liquid crystal display panel, an organic light emitting diode (OLED) panel, or an electrophoretic display panel.
  • OLED organic light emitting diode
  • electrophoretic display panel In practical applications, these types of panels are mainstream panels for displaying images.
  • a liquid crystal display panel which belongs to a passive light-emitting type display panel, it does not emit light by itself, and it is necessary to display a picture under the premise of providing a backlight.
  • OLED panels since OLEDs are active light-emitting devices, OLED panels are active-emitting display panels that do not require an additional backlight for display when displaying images; for electrophoretic display panels (ie, electronic paper)
  • Electronic paper is a reflective device whose light source comes from ambient light.
  • the display panel may also include other types of panels for performing screen display, and is not limited to the above three display panels.
  • the display device provided by the embodiment of the present disclosure further includes: a light guide plate and a backlight for providing the liquid crystal display panel with visible light required for display;
  • the interference light source and the backlight are both disposed on a light incident surface side of the light guide plate (for a side-entry backlight, the light incident surface is a side surface of the light guide plate, and for a direct type backlight, the light incident surface That is, the opposite surface of the light-emitting surface of the light guide plate, usually the lower surface of the light guide plate, and the non-visible light emitted by the interference light source reaches the liquid crystal display panel through the light guide plate, and is on the display side of the liquid crystal display panel
  • the interference light is formed.
  • the interference light source may be disposed at a BLU (Back Light Unit) composed of a backlight, that is, provided together with the backlight.
  • BLU Back Light Unit
  • FIG. 2 is a schematic diagram showing relative positions of components in a liquid crystal display panel of a display device according to an embodiment of the present disclosure
  • FIG. 2 is a view showing a relative position of a BLU and other components in a liquid crystal display panel. schematic diagram. The case where the interference light source is disposed inside the BLU together with the backlight will be described below with reference to the drawings.
  • the display device may set the interference light source by using the following four specific settings:
  • the display device may further include: a first light strip for setting the side-entry backlight, the interference light source and the side
  • the backlights are disposed on the first light strip at intervals along a longitudinal direction of a plane of the first light strip opposite to the light guide plate.
  • This method can be called a single side entry type setting mode.
  • the number and spacing settings for the side-entry backlight and the interference source are not limited. For example, it can be set one by one, or one interference light source can be inserted in the middle of each two side-entry backlights; One or more side-in backlights can be set up with an interference source, which is OK.
  • FIG. 3 is a schematic diagram of an arrangement manner of an interference light source and a side-entry backlight in a liquid crystal display panel according to an embodiment of the present disclosure.
  • the first light bar 31 is illustrated.
  • the side-entry backlight 33 (for example, an LED for emitting visible light) is spaced apart from the interference light source 34 on the first light bar 31. .
  • the visible light emitted by the side-entry backlight 33 and the interference light emitted by the interference light source 34 are simultaneously incident from the left side surface of the light guide plate 32 through the lower surface of the light guide plate 32 (as the light guide plate 32).
  • the reflection and scattering of the dot surface are emitted by the upper surface of the light guide plate 32 (as the light exit surface of the light guide plate 32).
  • the display device may further include: a first light strip for setting the side-entry backlight, the interference light source and the side The backlight is stacked on the first light strip along a short side direction of a plane of the first light strip opposite to the light guide plate.
  • the number and interval setting manner of the side-entry backlight and the interference light source are not limited. For example, it may be arranged one by one, or an interference light source may be inserted between each of the two side-entry backlights, and an interference light source may be disposed at three, four or more side-entry backlights. It is all right.
  • This method can also be referred to as a one-side side-entry setting mode, which is different from the mode one in that the interference light source and the side-entry backlight are arranged on the light bar in a positional relationship.
  • FIG. 4A is a plan view showing the arrangement of the interference light source and the side-entry backlight in the liquid crystal display panel according to the embodiment of the present disclosure
  • FIG. 4B is a liquid crystal according to an embodiment of the present disclosure
  • FIG. 4C is a front view of a set of interference light sources and side-entry backlights disposed in the second mode of the liquid crystal display panel according to an embodiment of the present disclosure. FIG. ).
  • the first light strip 41 is disposed on the left side surface of the light guide plate 42 (as a light incident surface of the light guide plate 42), and the side-entry backlight 43 (for example, an LED can be used for emitting visible light) and interference
  • the light source 44 is simultaneously disposed on the first light bar 41.
  • the side-entry backlight 43 or the interference light source 44 can be seen from FIG. 4A because the side-entry backlight 43 and the interference light source 44 are stacked, and the two are arranged one-to-one.
  • Each of the side-entry backlights 43 and the interference light source 44 become a group (in practical applications, the two can share the position of one source backlight), and only from a plan view One light source can be seen, and the other light source is just blocked by the former.
  • FIG. 4B and FIG. 4C at the same time.
  • the interference light source 44 is correspondingly disposed above the side-entry backlight 43.
  • the setting positions of the two in the actual design can be interchanged.
  • the visible light emitted by the side-entry backlight 43 and the interference light emitted by the interference light source 44 are simultaneously incident from the left side surface of the light guide plate 42 through the light guide plate 42.
  • the reflection and scattering of the lower surface are emitted from the upper surface of the light guide plate 42 (as the light exit surface of the light guide plate 42).
  • the interference light source 44 can share a printed circuit board (PCB) with the side-entry backlight 43.
  • the interference light source 44 of each group can be arranged at the same PCB point as the side-entry backlight 43.
  • each set of interference light sources 44 and the side-entry backlight 43 can be packaged in one chip, thereby simplifying the light bar structure and reducing the process cost.
  • the display device may further include: a first light strip for setting the side-entry backlight, and along the light guide plate a second light strip disposed laterally and opposite to the first light strip, wherein the interference light source is disposed on the second light strip, wherein the shape of the second light strip is a straight line or a corner type.
  • This mode 3 can be referred to as a polygonal side entry or a side entry type. That is to say, while the first light strip is disposed on one side of the light guide plate, the second light strip may be disposed on the adjacent side, the opposite side, all three sides, or at the corner of the light guide plate.
  • this kind of polygonal side entry or corner side entry type it is not necessary to match the mesh of the light guide plate when setting.
  • the interference light source is emitted from the light guide plate, the light uniformity is deteriorated, and the interference and destruction effect on the display image can be more effectively prevented, and the effect of preventing the sneak shot is better.
  • the number and interval setting manner of the side-entry backlight and the interference light source are not limited.
  • it may be arranged one by one, or an interference light source may be inserted between each of the two side-entry backlights, and an interference light source may be disposed at three, four or more side-entry backlights. It is all right.
  • FIG. 5 is a liquid crystal display panel according to an embodiment of the present disclosure.
  • the interference light source and the side-in type backlight are arranged in the third manner.
  • the first light bar 51 is disposed on the left side surface of the light guide plate 52 (as the light incident surface of the light guide plate 52), and the side-entry backlight 53 (for example, LEDs can be used for emitting visible light) disposed on the first light bar 51; and the interference light source 54 is disposed on the second light bar 55, the visible light emitted by the side-entry backlight 53 and the interference from the interference light source 54
  • Light rays invisible light that is invisible to the naked eye
  • the upper surface (as the light-emitting surface of the light guide plate
  • the second light bar 55 in FIG. 5 is disposed at a position adjacent to the first light bar 51 on the upper side of the light guide plate 52, and has the same shape as the first light guide bar 52.
  • Long strip type ie straight type.
  • the length of the second light guiding strip 52 may be equal to the length of the upper side surface of the light guide plate 52 or may be smaller than the length of the upper side surface of the light guide plate 52.
  • the shape of the second light bar 55 may also be a corner type. For ease of installation and better cooperation with the light guide plate, the corners are preferably at right angles.
  • the display device may further include: the interference light source and the direct type backlight are spaced apart from each other.
  • the interference light source and the direct type backlight are spaced apart from each other.
  • FIG. 6 FIG. 6 is a schematic diagram of the arrangement of the interference light source and the direct type backlight in the liquid crystal display panel according to the embodiment of the present disclosure.
  • the number and spacing of the direct type backlight and the interference light source are not limited.
  • it may be arranged in a one-to-one interval insertion manner, or an interference light source may be inserted in the middle of a plurality of direct-type backlights.
  • the interference light source can be completely disposed at other positions of the display device using the liquid crystal display panel.
  • the interference light source is disposed on a bezel of the display device.
  • the interference light source is disposed around the OLED panel or the electrophoretic display panel.
  • FIG. 7 is a diagram showing only an interference light source disposed around an OLED panel or an electrophoretic display panel according to an embodiment of the present disclosure. schematic diagram).
  • the OLED panel is a self-luminous device capable of emitting visible light for displaying a picture, it is only necessary to provide an interference light source around it.
  • the interfering light emitted by the interference light source is invisible light (for example, infrared light), which can cause interference to the photographing device and cause the photographing of the sneak shot to fail.
  • the electrophoretic display panel can display an image by using an ambient light, such as electronic paper, when the user uses the electronic paper in the daytime or the illuminated indoor space, the electronic paper can normally display the screen content (for example, an electronic paper book without the backlight function) Reader). Therefore, in this case, it is also possible to provide only an interference light source around the electrophoretic display panel such as an electronic paper.
  • how the interference light source is specifically disposed around the two display panels is not limited.
  • a plurality of the interference light sources are evenly distributed over the bezel of the display device using the two display panels.
  • it can also be disposed only on one side, two sides or three sides of the frame.
  • a row of the interference light sources are respectively arranged on opposite sides of the frame, for example, only one side of the border is set.
  • the interference light source can achieve the interference effect as long as the interference light emitted by the light source is strong enough to interfere with the display screen to avoid being photographed by others.
  • the interference light source is inclined at a predetermined angle toward a center of the OLED panel or the electrophoretic display panel (please refer to FIG. 8 , which is an OLED panel or according to an embodiment of the present disclosure.
  • the electrophoretic display panel is provided with a schematic diagram of the oblique interference light source, so that the interference light emitted by the interference light source can completely cover the display area of the OLED panel or the electrophoretic display panel. That is to say, the setting direction of the interference light source is designed in such a manner as to maximize the sneak shot of the screen that can be displayed on the display area of the display panel.
  • the interference light source may employ an infrared light emitting diode. Since the infrared light emitted by the infrared light-emitting diode is not visible to the naked eye of the user, it does not affect the user's viewing of the screen content displayed on the display panel, and the infrared light is basically sensed by all current types of shooting devices, necessarily shooting The imaging process of the device caused a great disturbance, which caused the difference between the captured image and the display screen of the display panel to cause the sneak shot to fail.
  • FIG. 9 is a schematic diagram of simultaneously setting a visible light source and an interference light source around the electrophoretic display panel according to an embodiment of the present disclosure.
  • a spacing is adopted around the electrophoretic display panel. The way of visible light source and interference light source is set. In this way, when there is no ambient light around, the user can still view the display content normally.
  • the embodiment of the present disclosure further provides a backlight device for providing backlight for a liquid crystal display panel, comprising: an interference light source for forming interference light on a display side of the liquid crystal display panel, the interference light being non-visible light. Since the improvement of the backlight device is to increase the interference light source, the optical light generated by the interference light source can effectively interfere with the shooting result when another person sneak shot the display content of the liquid crystal display panel.
  • the above display device and backlight are both based on a display panel that emits light by itself or by ambient light.
  • a light source assembly including: interference light source, setting The object to be interfered is a display device, and the light source is capable of forming interference light on the surface of the object to be interfered, and the interference light is non-visible light.
  • the light source assembly may further include: a frame for encapsulating the object to be interfered, the interference light source being disposed on the frame.
  • the interference light source may be disposed around the object that needs to interfere with the object, so reference may be made to the arrangement manner of the OLED panel or the electrophoretic display panel (FIGS. 7 to 9), and no longer attached thereto. The figure is described.
  • the display panel or other non-display object is disposed to emit invisible light that is invisible to the human eye as interference light. Since the interference light can be captured by the photographing device, the photographing screen cannot display the display content of the display panel normally, and the acquired photograph is accompanied by miscellaneous information. With this design scheme, the sneak shot behavior of the sneak shot person may fail, and the normal viewing of the display content by the user is not affected, thereby ensuring the privacy of the user.

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Abstract

一种显示装置、背光源及光源组件。其中，该显示装置包括：显示面板（1）；以及，干扰光源（34），用于在显示面板的显示侧形成干扰光线，所述干扰光线为非可见光。

Description

显示装置、背光设备及光源组件
相关申请的交叉引用
本申请主张在2015年9月30日在中国提交的中国专利申请号No.201510640214.x的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及显示技术领域，尤其是涉及一种显示装置、背光设备及光源组件。
背景技术
液晶显示领域的技术革新离不开对用户各式各样需求的满足以及研发者对产品永不满足的颠覆性创造。产品本身的缺陷会促使科研工作者对产品进行不断的改良。例如，(1)基于液晶本身存在的视角问题，产生了高级超维场转换技术(Advanced super Dimension Switch，简称为ADS)、平面转换(In-Plane Switching，简称为IPS)、多象限垂直配向(Multi-domain Vertical Alignment，简称为MVA)等多种广视角模式的应用与推广；(2)利用液晶的窄视角及其他辅助手段，将正常显示区域仅局限于较窄的正面视角区域，就可以起到一定的保护隐私作用，从而实现防偷窥的功能。
然而，针对当有些画面需要显示但又不允许偷拍画面信息的情形，现有技术没有提供一种有效的解决方案。也就是说，如何既能够保证画面的正常显示不影响用户观看又能够防止他人偷拍画面信息成为亟待解决的技术问题。
发明内容
本公开的主要目的在于提供一种采用肉眼观看不见而拍摄设备可以感应到的干扰光源对显示画面或物体形成干扰，从而既能保证画面的正常显示而不影响用户观看，又能防止他人偷拍画面显示信息的技术方案。
为了达到上述目的，本公开提供了一种显示装置，该显示装置包括：显示面板；以及，干扰光源，用于在显示面板的显示侧形成干扰光线，所述干扰光线为非可见光。
可选地，所述显示面板为液晶显示面板。
可选地，所述显示装置还包括：导光板和用于为所述液晶显示面板提供 显示所需要的可见光的背光源；所述干扰光源与所述背光源均设置在所述导光板的入光面一侧，所述干扰光源发出的非可见光通过所述导光板到达所述液晶显示面板，并在所述液晶显示面板的显示侧形成所述干扰光线。
可选地，所述背光源为侧入式背光源，所述显示装置还包括：用于设置所述侧入式背光源的第一光条，所述干扰光源与所述侧入式背光源沿着所述第一光条的与所述导光板相对的平面的长边方向间隔设置在所述第一光条上。
可选地，所述背光源为侧入式背光源，所述显示装置还包括：用于设置所述侧入式背光源的第一光条，所述干扰光源与所述侧入式背光源沿着所述第一光条的与所述导光板相对的平面的短边方向层叠设置在所述第一光条上。
可选地，所述背光源为侧入式背光源，所述显示装置还包括：用于设置所述侧入式背光源的第一光条，以及沿着所述导光板的侧面且与所述第一光条相对设置或相邻设置的第二光条，所述干扰光源设置在所述第二光条上，其中，所述第二光条的形状为直线型或拐角型。
可选地，所述背光源为直下式背光源，所述显示装置还包括：所述干扰光源与所述直下式背光源间隔穿插设置。
可选地，所述显示面板为有机发光二极管(OLED)面板或者电泳显示面板。
可选地，所述干扰光源设置在所述OLED面板或所述电泳显示面板的周围。
可选地，所述干扰光源朝向所述OLED面板或所述电泳显示面板的中心倾斜预定角度，使得所述干扰光源发出的所述干扰光线能够完全覆盖所述OLED面板或所述电泳显示面板的显示区域。
可选地，所述干扰光源为红外发光装置。
本公开还提供了一种背光设备，用于为一液晶显示面板提供背光，包括：干扰光源，用于在所述液晶显示面板的显示侧形成干扰光线，所述干扰光线为非可见光。
本公开还提供了一种光源组件，包括：干扰光源，设置于待干扰物品周围，所述待干扰物品为一显示设备，所述光源能够在所述待干扰物品表面形成干扰光线，所述干扰光线为非可见光。
可选地，该光源组件还包括：框架，用于封装所述待干扰物品，所述干扰光源设置所述框架上。
与现有技术相比，本公开所述的显示装置、背光源及光源组件，采用了可以发出肉眼看不见而拍摄设备却能感应到的光线的光源作为干扰光源。由于用户看不见该干扰光源发出的光线因此不会影响用户观看显示画面，但拍摄设备能够感应到该干扰光源发出的光线，因此如果有人使用拍摄设备对正常显示的画面进行拍摄时会严重影响拍摄结果。这样一来，用户不必担心显示画面被他人偷拍，极大地保护了用户隐私或显示画面的安全。
附图说明
图1是根据本公开实施例的显示装置的结构示意图；
图2是根据本公开实施例的液晶显示面板中各组件的相对位置示意图；
图3是根据本公开实施例的液晶显示面板中干扰光源与侧入式背光源采用方式一设置的示意图；
图4A是根据本公开实施例的液晶显示面板中干扰光源与侧入式背光源采用方式二设置的俯视图；
图4B是根据本公开实施例的液晶显示面板中干扰光源与侧入式背光源采用方式二设置的正视图；
图4C是根据本公开实施例的液晶显示面板中干扰光源与侧入式背光源采用方式二设置的右视图；
图5是根据本公开实施例的液晶显示面板中干扰光源与侧入式背光源采用方式三设置的示意图；
图6是根据本公开实施例的液晶显示面板中干扰光源与直下式背光源采用方式四设置的示意图；
图7是根据本公开实施例的在OLED面板或电泳显示面板周围只设置干扰光源的示意图；
图8是根据本公开实施例的在OLED面板或电泳显示面板设置倾斜的干扰光源的示意图；以及
图9是根据本公开实施例的在电泳显示面板周围同时设置可见光源和干扰光源的示意图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开的一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域的普通技术人员在没有做出创造性劳动的前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另作定义，此处使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接，不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也相应地改变。
为了达到本公开的主要目的，本公开实施例提供了一种显示装置。图1是根据本公开实施例的显示装置的结构示意图。如图1所示，该显示装置包括：显示面板1；以及，干扰光源(图1仅示意性地示出了干扰光源产生干扰光线)，用于在显示面板1的显示侧形成干扰光线(即带箭头的虚线)，所述干扰光线为非可见光。当然，图1并未示出所述干扰光源的结构和设置位置，这是因为干扰光源的结构可以根据显示面板1的类型设计成不同的结构，采用不同的设置位置，以适应不同类型的显示面板1以达到对于显示面板1的显示内容形成有效干扰的目的。
也就是说，只要设置的干扰光源能够产生干扰光线，而该干扰光线能够在显示面板的显示侧形成针对显示面板的显示画面的有效干扰即可，以达到防止显示画面被他人使用拍摄设备偷拍的目的，有效保护了用户的隐私安全。
在本公开实施例中，所述显示面板可以包括：液晶显示面板、有机发光二极管(OLED)面板或者电泳显示面板。实际应用中，这几种类型的面板都是用于显示画面的主流面板。其中，对于液晶显示面板，其属于被动发光类型的显示面板，自身并不能发光，需要在提供背光源的前提下才能够显示画 面；对于OLED面板，由于OLED是主动发光器件，因此OLED面板属于主动发光型的显示面板，在进行画面显示时并不需要额外提供背光源供其使用；对于电泳显示面板(也即电子纸)，电子纸属于反射器件，其光源来自周围的环境光。
当然，实际应用中，显示面板还可以包括其它类型的用于进行画面显示的面板，并不以上述三种显示面板为限。
以下分别对使用上述三种显示面板的显示装置为例，对该显示装置设置了干扰光源后的结构进行详细描述。
(1)当所述显示面板为所述液晶显示面板时，本公开实施例提供的所述显示装置还包括：导光板和用于为所述液晶显示面板提供显示所需要的可见光的背光源；所述干扰光源与所述背光源均设置在所述导光板的入光面一侧(对于侧入式背光源，入光面即为导光板的侧表面，对于直下式背光源，入光面即为导光板的出光面的相对面，通常为导光板的下表面)，所述干扰光源发出的非可见光通过所述导光板到达所述液晶显示面板，并在所述液晶显示面板的显示侧形成所述干扰光线。
也就是说，所述干扰光源可以设置在由背光源组成的BLU(Back Light Unit，背光单元)处，即与背光源一起设置。为便于理解，可以参考图2(图2是根据本公开实施例的显示装置的液晶显示面板中各组件的相对位置示意图)，图2示出了BLU与其他组件组成液晶显示面板时的相对位置示意图。以下将结合附图描述所述干扰光源与背光源一起设置在BLU内部的情况。
基于此种设置干扰光源的方式，在本公开实施例中，所述显示装置可以采用以下具体的四种设置方式设置所述干扰光源：
方式一，在所述背光源为侧入式背光源的情况下，所述显示装置还可以包括：用于设置所述侧入式背光源的第一光条，所述干扰光源与所述侧入式背光源沿着所述第一光条的与所述导光板相对的平面的长边方向间隔设置在所述第一光条上。
该方式一可以称之为单边侧入式的设置方式。对于侧入式背光源和干扰光源的个数和间隔设置方式并不限制。例如，可以一一间隔来设置，也可以在每两个侧入式背光源中间插入设置一个干扰光源；还可以在间隔三个、四 个或更多个侧入式背光源设置一个干扰光源，都是可以行的。
为便于理解，请参考图3(图3是根据本公开实施例的液晶显示面板中干扰光源与侧入式背光源的一种设置方式的示意图)，如图3所示，第一光条31设置在导光板32的左侧面(作为导光板32的入光面)，侧入式背光源33(例如可以采用LED，用于发射可见光)与干扰光源34间隔设置在第一光条31上。侧入式背光源33发出的可见光和干扰光源34发出的干扰光线(为肉眼无法识别的不可见光)同时从导光板32的左侧面入射，经过导光板32的下表面(作为导光板32的网点面)的反射和散射，由导光板32的上表面(作为导光板32的出光面)出射。
方式二，在所述背光源为侧入式背光源的情况下，所述显示装置还可以包括：用于设置所述侧入式背光源的第一光条，所述干扰光源与所述侧入式背光源沿着所述第一光条的与所述导光板相对的平面的短边方向层叠设置在所述第一光条上。当然，对于侧入式背光源和干扰光源的个数和间隔设置方式并不限制。例如，可以一一间隔来设置，也可以在每两个侧入式背光源中间插入设置一个干扰光源，还可以在间隔三个、四个或更多个侧入式背光源设置一个干扰光源，都是可以行的。
该方式也可以称之为单边侧入式的设置方式，与方式一相比，该方式只是在干扰光源和侧入式背光源设置在光条上的位置关系方面有区别。
为便于理解，请参考图4A至图4C(图4A是根据本公开实施例的液晶显示面板中干扰光源与侧入式背光源采用方式二设置的俯视图，图4B是根据本公开实施例的液晶显示面板中干扰光源与侧入式背光源采用方式二设置的正视图，图4C是根据本公开实施例的液晶显示面板中采用方式二设置的一组干扰光源与侧入式背光源的右视图)。
如图4A所示，第一光条41设置在导光板42的左侧面(作为导光板42的入光面)，侧入式背光源43(例如可以采用LED，用于发射可见光)与干扰光源44同时设置在第一光条41上。但是从图4A中只能看见侧入式背光源43或干扰光源44，这是因为侧入式背光源43和干扰光源44是层叠设置，二者是一对一叠加设置的。每一个侧入式背光源43和干扰光源44成为一组(在实际应用中，二者可以共用一个源背光源所占的板位)，从俯视角度看只 能看见一种光源，另一种光源刚好被前者遮挡住。为便于理解，请同时参见图4B和图4C，从图4B和图4C中可以看出，每一组中，干扰光源44是对应设置在侧入式背光源43上方。当然，实际设计中二者的设置位置可以互换。
采用该方式二，侧入式背光源43发出的可见光和干扰光源44发出的干扰光线(为肉眼无法识别的不可见光，例如红外光)同时从导光板42的左侧面入射，经过导光板42的下表面(作为导光板42的网点面)的反射和散射，由导光板42的上表面(作为导光板42的出光面)出射。
在实际设计中，干扰光源44可以与侧入式背光源43可以共用一个印刷电路板(Printed Circuit Board，PCB)。每一组的干扰光源44可以与侧入式背光源43可以在同一个PCB点位布置。可选的，每一组的干扰光源44可以与侧入式背光源43可以封装在一个芯片中，从而简化灯条结构，降低工艺成本。
采用上述方式一和方式二，无需将干扰光源与导光板的网孔进行匹配，只需将可见光源(侧入式背光源)与导光板的网孔进行匹配。当干扰光源从导光板出射后光均匀性变差，更能起到对显示图像的干扰和破坏作用，防止偷拍的效果会更好。
方式三，在所述背光源为侧入式背光源的情况下，所述显示装置还可以包括：用于设置所述侧入式背光源的第一光条，以及沿着所述导光板的侧面且与所述第一光条相对设置或相邻设置的第二光条，所述干扰光源设置在所述第二光条上，其中，所述第二光条的形状为直线型或拐角型。
该方式三可以称之为多边侧入式或边角侧入式。也就是说，在导光板的一侧设置了第一光条的同时，还可以在其相邻侧、相对侧、全部三侧或者是在导光板的拐角处都可以设置第二光条。采用这种多边侧入式或边角侧入式，设置时无需与导光板的网孔进行匹配。当干扰光源从导光板出射后光均匀性变差，更能起到对显示图像的干扰和破坏作用，防止偷拍的效果会更好。
当然，对于侧入式背光源和干扰光源的个数和间隔设置方式并不限制。例如，可以一一间隔来设置，也可以在每两个侧入式背光源中间插入设置一个干扰光源，还可以在间隔三个、四个或更多个侧入式背光源设置一个干扰光源，都是可以行的。
为便于理解，请参考图5(图5是根据本公开实施例的液晶显示面板中 干扰光源与侧入式背光源采用方式三设置)，如图5所示，第一光条51设置在导光板52的左侧面(作为导光板52的入光面)，侧入式背光源53(例如可以采用LED，用于发射可见光)设置在第一光条51上；而干扰光源54设置在第二光条55上，侧入式背光源53发出的可见光和干扰光源54发出的干扰光线(为肉眼无法识别的不可见光)同时从导光板52的左侧面和上侧面入射，经过导光板52的下表面(作为导光板52的网点面)的反射和散射，由导光板52的上表面(作为导光板52的出光面)出射。
需要说明的是，图5中的第二光条55是设置在导光板52的上侧面与第一光条51相邻的位置，而且其形状与第一导光条52是相同的，都是长条型(即直线型)。第二导光条52的长度可以与导光板52的上侧面的长度相等，也可以小于导光板52的上侧面的长度。而且，第二光条55的形状也可以是拐角型。为了便于安装且与导光板配合较好，拐角最好为直角。
方式四，在所述背光源为直下式背光源的情况下，所述显示装置还可以包括：所述干扰光源与所述直下式背光源间隔穿插设置。为便于理解，请参考图6(图6是根据本公开实施例的液晶显示面板中干扰光源与直下式背光源采用方式四设置的示意图)。
当然，对于直下式背光源和干扰光源的个数和间隔设置方式并不限制。例如，可以按照一比一的间隔穿插方式来设置，也可以在多个直下式背光源中间插入设置一个干扰光源，都是可以行的。
当然，对于液晶显示面板来说，并非只有上述将所述干扰光源和背光源一起设置的方式。在实际设计过程中，所述干扰光源完全可以设在使用液晶显示面板的显示装置的其它位置处。例如，所述将所述干扰光源设置在显示装置的边框上。采用这种设计方式，所述干扰光源发出的干扰光线并不需要通过导光板的散射和反射并最终透过显示面板的显示区域才能形成干扰光线，而是直接在显示面板的显示区域一侧即形成干扰光线，而且这种设计方式相对于简单，无需对液晶显示面板的背光模组进行重新设计。
(2)当所述显示面板为所述OLED面板或所述电泳显示面板时，所述干扰光源设置在所述OLED面板或所述电泳显示面板的周围。请参考图7(图7是根据本公开实施例的在OLED面板或电泳显示面板周围只设置干扰光源的 示意图)。
由于所述OLED面板为自发光器件，能够发出可见光用于显示画面，因此只需在其周围设置干扰光源即可。干扰光源发出的干扰光线为不可见光(例如红外光)，能够对拍摄设备产生干扰从而导致偷拍者的拍摄失败。由于上述电泳显示面板可以借助环境光显示画面，例如电子纸，当用户在白天或有照明的室内空间中使用电子纸时，电子纸可以正常显示画面内容(例如不具备背景灯功能的电纸书阅读器)。因此这种情况下，也可以在电子纸等电泳显示面板的周围只设置干扰光源即可。
当然，在实际设计中，干扰光源具体如何分布设置在这两种显示面板的周围并不做限定。例如可选地，将多个所述干扰光源均匀分布在使用这两种显示面板的所述显示装置的边框上。当然，也可以只设置在边框的一条边、两条边或三条边上，例如在边框的相对两条边上设置分别设置一排所述干扰光源，例如，只在边框的一条边上设置一个所述干扰光源，只要该光源发出的干扰光线足够强而能够对显示画面造成干扰，以避免被他人偷拍画面，即可达到干扰效果。
可选地，在本公开实施例中，所述干扰光源朝向所述OLED面板或所述电泳显示面板的中心倾斜预定角度(请参考图8，图8是根据本公开实施例的在OLED面板或电泳显示面板设置倾斜的干扰光源的示意图)，使得所述干扰光源发出的所述干扰光线能够完全覆盖所述OLED面板或所述电泳显示面板的显示区域。也就是说，这样设计干扰光源的设置方向是为了最大程度地形成对显示面板的显示区域能够显示的画面的偷拍干扰。
在本公开实施例中，不论采用哪种方式来设置所述干扰光源，所述干扰光源均可以采用红外发光二极管。由于红外发光二极管发出的红外光并不能被用户的肉眼看到，因此不会影响用户观看显示面板显示的画面内容，而且红外光是基本能被目前所有类型的拍摄设备所感应到，必然对拍摄设备的成像过程造成很大干扰，使得拍摄出来的画面与显示面板的显示画面差异巨大导致偷拍失败。
当然，对电子纸等电泳显示面板，如果用户想在晚上且无照明的环境或光线昏暗的环境中，电子纸就无法正常显示了。此时可以同时为这种电泳显 示面板设置可见光源以便于用户正常观看显示内容。为便于理解，请参考图9(图9是根据本公开实施例的在电泳显示面板周围同时设置可见光源和干扰光源的示意图)，如图9所示，在电泳显示面板周围采用一一间隔设可见光源和干扰光源的方式进行设置。这样一来，当周围不存在环境光时，用户仍然可以正常观看显示内容。
本公开实施例还提供了一种背光设备，用于为一液晶显示面板提供背光，包括：干扰光源，用于在所述液晶显示面板的显示侧形成干扰光线，所述干扰光线为非可见光。由于该背光设备的改进在于增加了所述干扰光源，只要该干扰光源产生的光学能够在他人偷拍液晶显示面板的显示内容时对拍摄结果形成有效干扰即可。
以上的显示装置和背光源都是基于自身发光或借助环境光进行显示的显示面板而提出的。在实际应用中，对于不能发光的物品例如需要展示的书画、壁画等，由于这些特殊物品一般需要禁止拍摄，因此基于这种情况，本公开还提供了一种光源组件，包括：干扰光源，设置于待干扰物品周围，所述待干扰物品为一显示设备，所述光源能够在所述待干扰物品表面形成干扰光线，所述干扰光线为非可见光。
可选地，该光源组件还可以包括：框架，用于封装所述待干扰物品，所述干扰光源设置所述框架上。
由于这种情况下，所述干扰光源的可以设置在需要干扰物品的周围，因此可以参照所述OLED面板或所述电泳显示面板的设置方式(图7至图9)，在此不再结合附图进行描述。
通过本公开实施例，为显示面板或其它非显示物设置可以发射人眼看不到的不可见光作为干扰光线。由于干扰光线能够被拍摄设备捕捉，导致拍摄画面无法正常显示出显示面板的显示内容，使获取的照片上附带杂信息。采用这种设计方案，可以导致偷拍者的偷拍行为失败，而且不影响用户对显示内容的正常观看，从而保证了用户的隐私安全。
以上所述是本公开的可选实施方式，应当指出，对于本领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以做出若干改进和润饰，这些改进和润饰也应视为包含在本公开的保护范围之内。

Claims (14)

  1. 一种显示装置，包括：
    显示面板；以及，
    干扰光源，用于在显示面板的显示侧形成干扰光线，所述干扰光线为非可见光。
  2. 根据权利要求1所述的显示装置，其中，所述显示面板为液晶显示面板。
  3. 根据权利要求2所述的显示装置，其中，所述显示装置还包括：
    导光板和用于为所述液晶显示面板提供显示所需要的可见光的背光源；
    所述干扰光源与所述背光源均设置在所述导光板的入光面一侧，所述干扰光源发出的非可见光通过所述导光板到达所述液晶显示面板，并在所述液晶显示面板的显示侧形成所述干扰光线。
  4. 根据权利要求3所述的显示装置，其中，所述背光源为侧入式背光源，所述显示装置还包括：
    用于设置所述侧入式背光源的第一光条，所述干扰光源与所述侧入式背光源沿着所述第一光条的与所述导光板相对的平面的长边方向间隔设置在所述第一光条上。
  5. 根据权利要求3所述的显示装置，其中，所述背光源为侧入式背光源，所述显示装置还包括：
    用于设置所述侧入式背光源的第一光条，所述干扰光源与所述侧入式背光源沿着所述第一光条的与导光板相对的平面的短边方向层叠设置在所述第一光条上。
  6. 根据权利要求3所述的显示装置，其中，所述背光源为侧入式背光源，所述显示装置还包括：
    用于设置所述侧入式背光源的第一光条，以及沿着所述导光板的侧面且与所述第一光条相对设置或相邻设置的第二光条，所述干扰光源设置在所述第二光条上，其中，所述第二光条的形状为直线型或拐角型。
  7. 根据权利要求3所述的显示装置，其中，所述背光源为直下式背光源， 所述干扰光源与所述直下式背光源间隔穿插设置。
  8. 根据权利要求1所述的显示装置，其中，所述显示面板为有机发光二极管OLED面板或者电泳显示面板。
  9. 根据权利要求8所述的显示装置，其中，所述干扰光源设置在所述OLED面板或所述电泳显示面板的周围。
  10. 根据权利要求9所述的显示装置，其中，所述干扰光源朝向所述OLED面板或所述电泳显示面板的中心倾斜预定角度，使得所述干扰光源发出的所述干扰光线能够完全覆盖所述OLED面板或所述电泳显示面板的显示区域。
  11. 根据权利要求1至10中任一项所述的显示装置，其中，所述干扰光源为红外发光装置。
  12. 一种背光设备，用于为一液晶显示面板提供背光，包括：
    干扰光源，用于在所述液晶显示面板的显示侧形成干扰光线，所述干扰光线为非可见光。
  13. 一种光源组件，包括：
    干扰光源，设置于待干扰物品周围，所述待干扰物品为一显示设备，所述光源能够在所述待干扰物品表面形成干扰光线，所述干扰光线为非可见光。
  14. 根据权利要求12所述的光源组件，还包括：
    框架，用于封装所述待干扰物品，所述干扰光源设置所述框架上。
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US10444565B2 (en) 2019-10-15
US20170261811A1 (en) 2017-09-14

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