WO2017118162A1 - 显示面板及显示装置 - Google Patents

显示面板及显示装置 Download PDF

Info

Publication number
WO2017118162A1
WO2017118162A1 PCT/CN2016/103000 CN2016103000W WO2017118162A1 WO 2017118162 A1 WO2017118162 A1 WO 2017118162A1 CN 2016103000 W CN2016103000 W CN 2016103000W WO 2017118162 A1 WO2017118162 A1 WO 2017118162A1
Authority
WO
WIPO (PCT)
Prior art keywords
display panel
optical film
light
substrate
white light
Prior art date
Application number
PCT/CN2016/103000
Other languages
English (en)
French (fr)
Inventor
赵文卿
陈小川
冯鸿博
王倩
高健
卢鹏程
牛小辰
许睿
Original Assignee
京东方科技集团股份有限公司
北京京东方光电科技有限公司
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, 北京京东方光电科技有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/529,785 priority Critical patent/US10234713B2/en
Publication of WO2017118162A1 publication Critical patent/WO2017118162A1/zh

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
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133504—Diffusing, scattering, diffracting elements
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1809—Diffraction gratings with pitch less than or comparable to the wavelength
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B5/1866—Transmission gratings characterised by their structure, e.g. step profile, contours of substrate or grooves, pitch variations, materials
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/10—OLEDs or polymer light-emitting diodes [PLED]
    • H10K50/11—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers
    • H10K50/125—OLEDs or polymer light-emitting diodes [PLED] characterised by the electroluminescent [EL] layers specially adapted for multicolour light emission, e.g. for emitting white light
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/85—Arrangements for extracting light from the devices
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/85—Arrangements for extracting light from the devices
    • H10K50/858—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/86—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • H10K50/865—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. light-blocking layers
    • 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
    • H10K59/87—Passivation; Containers; Encapsulations
    • H10K59/873—Encapsulations
    • 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
    • H10K59/8791—Arrangements for improving contrast, e.g. preventing reflection of ambient light
    • H10K59/8792—Arrangements for improving contrast, e.g. preventing reflection of ambient light comprising light absorbing layers, e.g. black layers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/18—Diffraction gratings
    • G02B2005/1804—Transmission gratings
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B2207/00—Coding scheme for general features or characteristics of optical elements and systems of subclass G02B, but not including elements and systems which would be classified in G02B6/00 and subgroups
    • G02B2207/101—Nanooptics
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/20—Filters
    • G02B5/201—Filters in the form of arrays
    • 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
    • G02F1/133357—Planarisation layers
    • 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
    • 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
    • G02F1/133565—Structural association of cells with optical devices, e.g. polarisers or reflectors characterised by the placement of the optical elements inside the LC elements, i.e. between the cell substrates
    • 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
    • G02F2203/34—Colour display without the use of colour mosaic filters
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K2102/00—Constructional details relating to the organic devices covered by this subclass
    • H10K2102/301—Details of OLEDs
    • H10K2102/302—Details of OLEDs of OLED structures
    • H10K2102/3023—Direction of light emission
    • H10K2102/3026—Top emission
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K50/00—Organic light-emitting devices
    • H10K50/80—Constructional details
    • H10K50/84—Passivation; Containers; Encapsulations
    • H10K50/844—Encapsulations
    • 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
    • H10K59/875—Arrangements for extracting light from the devices
    • H10K59/879—Arrangements for extracting light from the devices comprising refractive means, e.g. lenses

Definitions

  • the present disclosure relates to a display panel and a display device.
  • TFT-LCD Thin Film Transistor Liquid Crystal Display
  • the color filter is an important component in the liquid crystal display.
  • the light emitted by the backlight module is processed by the color filter to present a color picture.
  • Existing liquid crystal displays mostly use traditional organic pigments or dyes to make color filters, and use different color-resistance filtering principles to convert white light into R (red) G (green) B (blue) three primary colors, but now The efficiency of the three primary colors transmitted by the color filter is very low, and the loss of light efficiency is about 60-70%. Especially, the higher the color purity, the more serious the loss of light efficiency.
  • An embodiment of the present disclosure provides a display panel including a first substrate and a second substrate disposed opposite to each other, wherein a first optical film is disposed on a side of the first substrate toward the second substrate, the first A plurality of nano-scale microstructures are formed on an optical film such that the first optical film is capable of dividing incident white light into a plurality of monochromatic lights of different colors.
  • the display panel includes a display area and a peripheral area surrounding the display area, the plurality of nano-scale microstructures being distributed at least throughout the display area of the display panel.
  • the incident white light is parallel light.
  • the plurality of nanoscale microstructures on the first optical film are a plurality of nanoscale grooves.
  • the groove is a rectangular parallelepiped groove, a tapered groove, a hemispherical groove, or a semi-ellipsoidal groove.
  • the display panel further includes: forming a light exiting side of the first optical film
  • the black matrix pattern includes a plurality of hollow portions, wherein each hollow portion allows only one color of monochromatic light to pass through.
  • the display panel further includes a flat layer formed between the black matrix pattern and the first optical film.
  • the display panel further includes: a second optical film configured to expand a monochromatic light divergence angle, the second optical film being located between or located between the black matrix pattern and the second substrate The second substrate faces away from the side of the first substrate.
  • the second optical film is a diffused film or a wide viewing angle film.
  • the display panel further includes a fourth optical film disposed on the light exiting side of the first optical film and configured to adjust an exit direction of the monochromatic light.
  • the plurality of hollow portions include a plurality of first hollow portions through which light of a first color is transmitted, a plurality of second hollow portions through which light of a second color is transmitted, and light for a third color
  • the plurality of first hollow portions, the plurality of second hollow portions, and the plurality of third hollow portions are uniformly distributed over the entire display area of the display panel.
  • the display panel is a liquid crystal display panel.
  • the display panel further includes a liquid crystal layer disposed between the first optical film and the second substrate.
  • the display panel is an OLED display panel
  • the first substrate is an OLED array substrate or a package substrate
  • a white light emitting layer is formed on the OLED array substrate
  • the first optical film is located in the white light emitting The light exit side of the layer.
  • the display panel further includes: a third optical film disposed between the white light emitting layer and the first optical film, and configured to convert the divergent light emitted by the white light emitting layer For parallel light.
  • Another embodiment of the present disclosure provides a display device comprising the display panel of any of the above.
  • the display panel is a liquid crystal display panel
  • the display device further includes a backlight module that provides a parallel light source for the liquid crystal display panel.
  • the display panel is an OLED display panel
  • the first substrate is an OLED array substrate or a package substrate
  • a white light emitting layer is formed on the OLED array substrate
  • the first optical film is located in the white light emitting The light exit side of the layer.
  • FIG. 1 is a schematic structural view of a display device according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural diagram of a display device according to another embodiment of the present disclosure.
  • FIG. 3 is a schematic view showing a first optical film dividing white light into monochromatic lights such as red light, green light, and blue light in an embodiment of the present disclosure
  • FIG. 4 is a schematic structural view of a first optical film according to an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of the first optical film after the white light is divided into monochromatic lights such as red light, green light, and blue light according to an embodiment of the present disclosure
  • FIG. 6 is a schematic diagram of matching the positions of a black matrix pattern and a monochromatic light according to an embodiment of the present disclosure
  • FIG. 7 is a schematic structural diagram of a display device according to still another embodiment of the present disclosure.
  • FIG. 8 is a schematic diagram showing the planar structure of some display devices according to an embodiment of the present disclosure.
  • the embodiment of the present disclosure provides a display panel and a display device capable of reducing the display device by the problem that the three primary colors transmitted by the color filter are low in efficiency and the light efficiency loss is about 60-70%.
  • the loss of light efficiency improves the light extraction efficiency of the display device.
  • the embodiment provides a display panel including a first substrate and a second substrate disposed oppositely, and a first optical film is disposed on a side of the first substrate facing the second substrate, and the first optical film is formed on the first substrate There are a plurality of nanoscale microstructures that enable the first optical film to divide incident white light into a plurality of monochromatic lights of different colors.
  • a first optical film is disposed in the display panel, and a plurality of nano films are formed on the first optical film.
  • the micro-structure of rice when the white light passes through the nano-scale microstructure, the light diffracts and interferes to produce the dispersion of light, thereby dividing the incident white light into a plurality of monochromatic lights of different colors.
  • color display can be realized instead of the color filter, and since the white light is divided into a plurality of monochromatic lights of different colors, instead of filtering out other colors of the white light, a single is obtained.
  • the color light can reduce the light efficiency loss of the display device and greatly improve the light extraction efficiency of the display device.
  • the incident white light is parallel light.
  • the microstructure may be a groove, that is, a plurality of nano-scale grooves are formed on the first optical film, and the light is diffracted and interfered when the white light parallel light passes through the nano-scale groove, thereby generating light dispersion. Thereby, the incident white light is divided into a plurality of monochromatic lights of different colors.
  • the microstructure is not limited to the use of a groove, and the microstructure may be a protrusion or other structure as long as it can satisfy the first optical film to divide the incident white light into a plurality of monochromatic lights of different colors.
  • the shape of the groove may be a rectangular parallelepiped groove, a tapered groove, a hemispherical groove, or a semi-ellipsoidal groove.
  • the display panel further includes: a black matrix pattern including a plurality of hollow portions formed on the light exiting side of the first optical film, wherein each hollow portion allows only one color of monochromatic light to pass therethrough.
  • the black matrix pattern is matched with the positions of a plurality of different colors of monochromatic light divided by white light, so that each hollow portion allows only one color of monochromatic light to be transmitted, so that by designing the black matrix pattern, it is possible to obtain A number of monochromatic lights of different colors are required.
  • the display panel further includes a flat layer formed between the black matrix pattern and the first optical film.
  • the black matrix pattern and the first optical film are separated by a flat layer, which can provide a sufficient divergence distance to the plurality of monochromatic lights separated by white light.
  • the display panel further includes: a second optical film capable of expanding a divergence angle of the monochromatic light, the second optical film being located in the black matrix pattern
  • the second optical film can enlarge the divergence angle of the monochromatic light between the second substrate or the side of the second substrate facing away from the first substrate, thereby enlarging the viewing angle of the display device.
  • the second optical film can be a diffuser film or a wide viewing angle film.
  • the second optical film may also be other optical structures capable of expanding the divergence angle of the monochromatic light.
  • the display panel further includes: disposed on the light exiting side of the first optical film, in order to ensure that the emission direction of the monochromatic light passing through the first optical film corresponds to the pixel electrode A fourth optical film that adjusts the direction in which the monochromatic light is emitted.
  • the fourth optical film may be composed of a plurality of dielectric layers having different refractive indices, causing a difference in refractive index at the interface to adjust the outgoing direction of the monochromatic light, and the fourth optical film may also be composed of microprisms.
  • the exit direction of the monochromatic light can also be controlled by the shape of the groove surface of the microstructure.
  • the display panel is a liquid crystal display panel
  • the first substrate is an array substrate or a color filter substrate.
  • the display panel is an OLED display panel
  • the first substrate is an OLED array substrate or a package substrate
  • a white light emitting layer is formed on the OLED array substrate
  • the first optical film is located in the white light emitting The light exit side of the layer.
  • the display panel when the display panel is an OLED display panel, since the first optical film can only divide the white parallel light into a plurality of monochromatic lights of different colors, the display panel further includes: the white light emitting layer and the A third optical film between the first optical films, the third optical film capable of converting the divergent light emitted by the white light emitting layer into parallel light.
  • the third optical film can be a prismatic film or other optical structure as long as the divergent light can be converted to parallel light.
  • the embodiment provides a display device including the display panel as described above.
  • the display device may be any product or component having a display function, such as a liquid crystal television, a liquid crystal display, a digital photo frame, a mobile phone, a tablet computer, or the like.
  • the display device when the display panel is a liquid crystal display panel, since the first optical film can only divide the white parallel light into a plurality of monochromatic lights of different colors, the display device further includes providing parallel to the liquid crystal display panel. Backlight module of light source.
  • the backlight module may directly include a parallel light source or a combination of a common divergent light source and a third optical film.
  • the display device of the present embodiment includes a first substrate 3 and a second substrate 6 disposed opposite to each other.
  • the first substrate 3 and the second substrate 6 are encapsulated by a sealant 5 on the first substrate 3 and the second substrate.
  • a liquid crystal layer is disposed between the substrates 6.
  • a polarizer 1 is attached to both the first substrate 3 and the second substrate 6. If the incident light is polarized light, the polarizer attached to the first substrate 3 can be omitted.
  • the display device further includes a backlight module that provides a parallel light source for the liquid crystal display panel, the backlight module includes a parallel light source, or a combination of a common divergent light source and a third optical film.
  • the backlight module includes a common light source
  • the ordinary light source may use an LED (Light Emitting Diode) or The OLED (Organic Electroluminescent Light Emitting Diode)
  • the third optical film may be a prism film or other optical structure, as long as the divergent light emitted from the ordinary illuminating light source can be converted into parallel light.
  • a first optical film 2 is disposed on a side of the first substrate 3 facing the second substrate 6.
  • the first optical film 2 may be made of a transparent insulating material, and the refractive index of the first optical film 2 may be The refractive index of the first substrate 3 is substantially the same, for example, at about 1.5.
  • the first optical film 3 is formed with a plurality of nano-scale microstructures, so that the first optical film 2 can divide the incident white light parallel light into a plurality of monochromatic lights of different colors, as shown in FIG. 3, the first optical film 2
  • the incident white light parallel light can be divided into monochromatic light such as red light, blue light, and green light.
  • a plurality of nano-scale grooves are formed on the first optical film 2.
  • the grooves may specifically be rectangular parallelepiped grooves, tapered grooves, hemispherical grooves or semi-ellipsoidal shapes. Groove.
  • the first optical film 2 can be made to divide the incident white light parallel light into a plurality of required monochromatic lights, and can also be designed by length L and depth H of the groove.
  • the direction of the outgoing light can also be controlled by the difference in refractive index created by the arrangement of different dielectric layers, and can be controlled by the microprism.
  • the schematic diagram of the first optical film 2 dispersing the monochromatic light into white parallel light is shown in FIG. 5. It can be seen that the dispersion wavelength distribution of the light is continuous colored light, and the width and width of the monochromatic light are not easily selected and used separately. It is necessary to match the black matrix pattern to correspond to the emission of the solid color light, thereby realizing a display device of high color gamut. Further, as shown in FIG. 1, the display device further includes a black matrix pattern 4 disposed on the light exiting side of the first optical film 2, and by designing the black matrix pattern, as shown in FIG.
  • the black matrix pattern is separated from the white light
  • the positions of the plurality of different colors of monochromatic light are matched such that each hollow portion allows only one color of monochromatic light to be transmitted, so that only the required solid color light can be emitted from the hollow portion of the black matrix pattern.
  • the extracted red light has a wavelength in the range of 630 nm to 780 nm, representing a wavelength of 700 nm
  • the extracted green light has a wavelength in the range of 500 to 570 nm, representing a wavelength of 550 nm
  • the extracted blue light has a wavelength in the range of 420 to 470 nm, representing a wavelength of 470 nm.
  • the brightness matching method can be used to achieve the corresponding matching of the gradation by adjusting the pixel voltage of the driving liquid crystal.
  • a liquid crystal layer may be disposed between the second substrate 6 and the first optical film 3.
  • a liquid crystal layer may be disposed between the second substrate 6 and the black matrix pattern 4.
  • a flat layer 9 is further disposed between the black matrix pattern 4 and the first optical film 2,
  • the initial divergence angles of a plurality of monochromatic lights of different colors divided by white light are relatively small, and therefore, the thickness of the flat layer 9 can provide a sufficient divergence distance for a plurality of monochromatic lights. If a larger divergence distance is also required, the desired divergence distance can be achieved by adjusting the thickness of the flat layer 9 to obtain the desired monochromatic light width.
  • the display device further includes a second optical film located on a side of the black matrix pattern 4 facing away from the first optical film 2. 7.
  • the second optical film 7 is capable of expanding the divergence angle of the monochromatic light, thereby enlarging the viewing angle of the display device.
  • the second optical film 7 may be disposed on the first substrate 3 or the second substrate 6 as long as it is located on the side of the black matrix pattern 4 facing away from the first optical film 2.
  • the second optical film 7 may be a diffusion film or a wide viewing angle film.
  • the second optical film 7 may also be other optical structures capable of expanding the divergence angle of the monochromatic light, such as a polarizing plate having an enlarged viewing angle function, and a liquid crystal film layer.
  • the refractive index material, the concave lens microstructure, and the like, wherein the liquid crystal film layer may be a fixed array of discotic liquid crystals or other liquid crystals of a fixed arrangement.
  • a first optical film is disposed on a side of the first substrate facing the second substrate, and a plurality of nano-scale grooves are formed on the first optical film, and the light is diffracted when the white light parallel light passes through the nano-scale groove. Interference, which generates dispersion of light, thereby dividing the incident white light into a plurality of monochromatic lights of different colors.
  • color display can be realized instead of the color filter, and since this embodiment is white light The monochromatic light is divided into a plurality of different colors instead of filtering out other colors in the white light to obtain monochromatic light, thereby reducing the luminous efficacy loss of the display device and greatly improving the light extraction efficiency of the display device.
  • the display device of the present embodiment includes a first substrate 3 and a second substrate 6 disposed opposite to each other, and the first substrate 3 and the second substrate 6 are encapsulated by a sealant 5 .
  • the second substrate 6 is a package substrate
  • the first substrate 3 is an OLED array substrate
  • a white light emitting layer is formed on the OLED array substrate
  • the display device further includes a third optical film 8 disposed on the light emitting side of the white light emitting layer, and the third optical film 8
  • the white light diverging light emitted from the white light emitting layer can be converted into white light parallel light.
  • the third optical film can be a prismatic film or other optical structure as long as the divergent light can be converted to parallel light.
  • a first optical film 2 is disposed on a side of the first substrate 3 facing the second substrate 6, and the second optical film 2 is located on a side of the third optical film 8 facing away from the white light emitting layer, the first optical The film 2 may be made of a transparent insulating material, and the refractive index of the first optical film 2 may be substantially the same as the refractive index of the first substrate 3, for example, at about 1.5. a plurality of nano-scale microstructures are formed on the first optical film 3, The first optical film 2 is configured to divide the incident white light parallel light into a plurality of monochromatic lights of different colors. As shown in FIG. 3, the first optical film 2 can divide the incident white light parallel light into red light, blue light, green light, and the like. monochromatic light.
  • a plurality of nano-scale grooves are formed on the first optical film 2, and the grooves may be, for example, a rectangular parallelepiped groove, a tapered groove, a hemispherical groove, or a semi-ellipsoidal groove.
  • the first optical film 2 can be made to divide the incident white light parallel light into a plurality of required monochromatic lights, and can also be designed by length L and depth H of the groove.
  • the direction of the outgoing light can also be controlled by the difference in refractive index created by the arrangement of different dielectric layers, and can be controlled by the microprism.
  • the schematic diagram of the first optical film 2 dispersing the monochromatic light into white parallel light is shown in FIG. 5. It can be seen that the dispersion wavelength distribution of the light is continuous colored light, and the width and width of the monochromatic light are not easily selected and used separately. It is necessary to match the black matrix pattern to correspond to the emission of the solid color light, thereby realizing a display device of high color gamut.
  • the display device further includes a black matrix pattern 4 disposed on the light exiting side of the first optical film 2, and by designing the black matrix pattern, as shown in FIG. 6, the black matrix pattern is separated from the white light.
  • the positions of the plurality of different colors of monochromatic light are matched such that each hollow portion allows only one color of monochromatic light to be transmitted, so that only the required solid color light can be emitted from the hollow portion of the black matrix pattern.
  • the extracted red light has a wavelength in the range of 630 nm to 780 nm, representing a wavelength of 700 nm
  • the extracted green light has a wavelength in the range of 500 to 570 nm, representing a wavelength of 550 nm
  • the extracted blue light has a wavelength in the range of 420 to 470 nm, representing a wavelength of 470 nm.
  • the brightness correction method may be adopted, and the corresponding matching of the gradation is realized by adjusting the pixel voltage.
  • a flat layer 9 is further disposed between the black matrix pattern 4 and the first optical film 2. Since the initial divergence angles of the plurality of different colors of monochromatic light divided by white light are relatively small, the flat layer 9 is The thickness can provide a sufficient divergence distance for multiple monochromatic lights. If a larger divergence distance is also required, the desired divergence distance can be achieved by adjusting the thickness of the flat layer 9 to obtain the desired monochromatic light width.
  • the display device further includes a second optical film located on a side of the black matrix pattern 4 facing away from the first optical film 2. 7.
  • the second optical film 7 is capable of expanding the divergence angle of the monochromatic light, thereby enlarging the viewing angle of the display device.
  • the second optical film 7 may be disposed on the first substrate 3 or the second substrate 6 as long as it is located on the back of the black matrix pattern 4 It is sufficient to one side of the first optical film 2.
  • the second optical film 7 may be a diffusion film or a wide viewing angle film.
  • the second optical film 7 may also be other optical structures capable of expanding the divergence angle of the monochromatic light, such as a polarizing plate having an enlarged viewing angle function, and a liquid crystal film layer.
  • the refractive index material, the concave lens microstructure, and the like, wherein the liquid crystal film layer may be a fixed array of discotic liquid crystals or other liquid crystals of a fixed arrangement.
  • FIG. 8 schematically illustrates a schematic plan view of a display panel in accordance with some examples of the present disclosure.
  • the display panel includes a display area 20 and a peripheral area 10 surrounding the display area 20, the plurality of nano-scale microstructures 30 being distributed at least throughout the display area 20 of the display panel.
  • the plurality of hollow portions include a plurality of first hollow portions 41 through which light of a first color is transmitted, and a plurality of second hollow portions 42 through which light of a second color is transmitted, and a plurality of third hollow portions 43 through which light of a third color passes, the plurality of first hollow portions 41, the plurality of second hollow portions 42 and the plurality of third hollow portions 43 are uniformly distributed The entire display area of the display panel.
  • FIG. 8 is only a schematic illustration of the distribution of the nano-scale microstructure and the hollow portion of the black matrix in the display area of the display panel, wherein the rectangles representing the microstructures 30 and the hollow portions 41, 42 and 43 are rectangular.
  • the shape does not necessarily represent the shape of the microstructure and the hollow portion, and the rectangular shape of the microstructure and the hollow portion may take any suitable shape.
  • the plurality of hollow portions 41, 42 and 43 distributed in the display area may correspond to a plurality of sub-pixels of the display panel, since different hollow portions can transmit light of different colors, and the brightness of each sub-pixel can pass through the liquid crystal. The modulation of the layers, therefore, can be combined into different colors of light for color display.
  • a first optical film is disposed on a side of the first substrate facing the second substrate, and a plurality of nano-scale grooves are formed on the first optical film, and the light is diffracted when the white light parallel light passes through the nano-scale groove. Interference, which generates dispersion of light, thereby dividing the incident white light into a plurality of monochromatic lights of different colors.
  • color display can be realized instead of the color filter, and since this embodiment is white light The monochromatic light is divided into a plurality of different colors instead of filtering out other colors in the white light to obtain monochromatic light, thereby reducing the luminous efficacy loss of the display device and greatly improving the light extraction efficiency of the display device.

Landscapes

  • Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Electroluminescent Light Sources (AREA)

Abstract

一种显示面板及显示装置。该显示面板包括相对设置的第一基板(3)和第二基板(6)，所述第一基板(3)朝向所述第二基板(6)的一侧设置有第一光学膜(2)，所述第一光学膜(2)上形成有多个纳米级的微结构，使得所述第一光学膜(2)能够将入射的白光分成多个不同颜色的单色光。本公开的技术方案能够降低显示装置的光效损失，提高显示装置的出光效率。

Description

显示面板及显示装置 技术领域
本公开涉及一种显示面板及显示装置。
背景技术
薄膜晶体管液晶显示器(Thin Film Transistor Liquid Crystal Display，TFT-LCD)具有体积小、功耗低、无辐射等特点，在当前的平板显示器市场占据了主导地位。
彩色滤光片是液晶显示器中的重要组件，在液晶显示器中，背光模组发射的光经过彩色滤光片的处理，而呈现出彩色的画面。现有的液晶显示器多采用传统的有机颜料或者染料来制作彩色滤光片，利用不同色阻滤光的原理，将白光转化为R(红)G(绿)B(蓝)三基色，但是现有彩色滤光片出射的三基色透射光效率很低，光效损失在60-70％左右，尤其是色纯度越高，光效损失越严重。
发明内容
本公开的一个实施例提供一种显示面板，包括相对设置的第一基板和第二基板，其中，所述第一基板朝向所述第二基板的一侧设置有第一光学膜，所述第一光学膜上形成有多个纳米级的微结构，使得所述第一光学膜能够将入射的白光分成多个不同颜色的单色光。
在一些示例中，所述显示面板包括显示区域和围绕在所述显示区域的周边区域，所述多个纳米级的微结构至少分布在所述显示面板的整个显示区域。
在一些示例中，所述入射的白光为平行光。
在一些示例中，所述第一光学膜上的多个纳米级的微结构为多个纳米级的凹槽。
在一些示例中，所述凹槽为长方体凹槽、锥形凹槽、半球形凹槽或半椭球形凹槽。
在一些示例中，所述的显示面板还包括：形成在所述第一光学膜出光侧 的包括有多个镂空部的黑矩阵图形，其中，每一镂空部仅允许一种颜色的单色光透过。
在一些示例中，所述的显示面板还包括：形成在所述黑矩阵图形和所述第一光学膜之间的平坦层。
在一些示例中，所述的显示面板还包括：第二光学膜，被配置为扩大单色光发散角度，所述第二光学膜位于所述黑矩阵图形和所述第二基板之间或位于所述第二基板背向所述第一基板的一侧。
在一些示例中，所述第二光学膜为扩散膜或宽视角膜。
在一些示例中，所述的显示面板还包括：第四光学膜，设置在所述第一光学膜出光侧，被配置为调整单色光的出射方向。
在一些示例中，所述多个镂空部包括供第一颜色的光透过的多个第一镂空部、供第二颜色的光透过的多个第二镂空部和供第三颜色的光透过的多个第三镂空部，所述多个第一镂空部、所述多个第二镂空部和所述多个第三镂空部分别均匀地分布在所述显示面板的整个显示区域。
在一些示例中，所述显示面板为液晶显示面板。
在一些示例中，所述的显示面板还包括设置在所述第一光学膜和所述第二基板之间的液晶层。
在一些示例中，所述显示面板为OLED显示面板，所述第一基板为OLED阵列基板或封装基板，所述OLED阵列基板上形成有白光发光层，所述第一光学膜位于所述白光发光层的出光侧。
在一些示例中，所述的显示面板还包括：第三光学膜，设置在所述白光发光层与所述第一光学膜之间，且被配置为将所述白光发光层出射的发散光线转换为平行光。
本公开的另一个实施例提供一种显示装置，包括上述任一项所述的显示面板。
在一些示例中，所述显示面板为液晶显示面板，所述显示装置还包括为所述液晶显示面板提供平行光光源的背光模组。
在一些示例中，所述显示面板为OLED显示面板，所述第一基板为OLED阵列基板或封装基板，所述OLED阵列基板上形成有白光发光层，所述第一光学膜位于所述白光发光层的出光侧。
附图说明
为了更清楚地说明本发明实施例的技术方案，下面将对实施例的附图作简单地介绍，显而易见地，下面描述中的附图仅仅涉及本发明的一些实施例，而非对本发明的限制。
图1为本公开一实施例显示装置的结构示意图；
图2为本公开另一实施例显示装置的结构示意图；
图3为本公开实施例中第一光学膜将白光分成红光、绿光和蓝光等单色光的示意图；
图4为本公开实施例第一光学膜的结构示意图；
图5为本公开实施例第一光学膜将白光分成红光、绿光和蓝光等单色光后，单色光色散后的示意图；
图6为本公开实施例黑矩阵图形与单色光的位置相匹配的示意图；
图7为本公开再一实施例显示装置的结构示意图；
图8为本公开实施例一些显示装置的平面结构示意图。
具体实施方式
为使本发明实施例的目的、技术方案和优点更加清楚，下面将结合本发明实施例的附图，对本发明实施例的技术方案进行清楚、完整地描述。显然，所描述的实施例是本发明的一部分实施例，而不是全部的实施例。基于所描述的本发明的实施例，本领域普通技术人员在无需创造性劳动的前提下所获得的所有其他实施例，都属于本发明保护的范围。
本公开的实施例针对现有技术中彩色滤光片出射的三基色透射光效率很低，光效损失在60-70％左右的问题，提供一种显示面板及显示装置，能够降低显示装置的光效损失，提高显示装置的出光效率。
实施例一
本实施例提供一种显示面板，包括相对设置的第一基板和第二基板，所述第一基板朝向所述第二基板的一侧设置有第一光学膜，所述第一光学膜上形成有多个纳米级的微结构，使得所述第一光学膜能够将入射的白光分成多个不同颜色的单色光。
本实施例在显示面板内设置有第一光学膜，第一光学膜上形成有多个纳 米级的微结构，白光经过纳米级的微结构时光线发生衍射和干涉，产生光的色散，从而将入射的白光分成多个不同颜色的单色光。采用本实施例的第一光学膜，可以代替彩色滤光片实现彩色显示，并且由于本实施例是将白光分成多个不同颜色的单色光，而不是将白光中其他颜色滤除而得到单色光，因此能够降低显示装置的光效损失，极大地提高显示装置的出光效率。
例如，所述入射的白光为平行光。
在一些示例中，上述微结构可以为凹槽，即第一光学膜上形成有多个纳米级的凹槽，白光平行光经过纳米级的凹槽时光线发生衍射和干涉，产生光的色散，从而将入射的白光分成多个不同颜色的单色光。但微结构并不限定于采用凹槽，微结构还可以为凸起或其他结构，只要能够满足第一光学膜将入射的白光分成多个不同颜色的单色光即可。
在一些示例中，凹槽的形状可以为长方体凹槽、锥形凹槽、半球形凹槽或半椭球形凹槽。
例如，所述显示面板还包括：形成在所述第一光学膜出光侧的包括有多个镂空部的黑矩阵图形，其中，每一镂空部仅允许一种颜色的单色光透过。黑矩阵图形与由白光分成的多个不同颜色的单色光的位置相匹配，使得每一镂空部仅允许一种颜色的单色光透过，这样通过对黑矩阵图形进行设计，就可以得到需要的多个不同颜色的单色光。
例如，所述显示面板还包括：形成在所述黑矩阵图形和所述第一光学膜之间的平坦层。这样，黑矩阵图形与第一光学膜之间间隔有平坦层，可以提供给由白光分出的多个单色光足够的发散距离。
例如，由于由白光分出的多个单色光的视角比较小，所述显示面板还包括：能够扩大单色光发散角度的第二光学膜，所述第二光学膜位于所述黑矩阵图形和所述第二基板之间或位于所述第二基板背向所述第一基板的一侧，第二光学膜能够扩大单色光的发散角度，从而扩大显示装置的视角。
在一些示例中，第二光学膜可以为扩散膜或宽视角膜。例如，第二光学膜还可以为其他能够扩大单色光发散角度的光学结构。
例如，因为入射第一光学膜的光为平行光，为保证经第一光学膜的单色光的出射方向与像素电极对应，显示面板还包括：设置在所述第一光学膜出光侧、能够调整单色光出射方向的第四光学膜。
第四光学膜可以由多个折射率不同的介质层组成，在界面处造成折射率的差异，从而调整单色光的出射方向，第四光学膜还可以由微棱镜组成。例如，还可以通过微结构的槽面形态控制单色光的出射方向。
在一些示例中，显示面板为液晶显示面板，第一基板为阵列基板或彩膜基板。
在一些示例中，所述显示面板为OLED显示面板，所述第一基板为OLED阵列基板或封装基板，所述OLED阵列基板上形成有白光发光层，所述第一光学膜位于所述白光发光层的出光侧。
例如，在显示面板为OLED显示面板时，由于第一光学膜仅能将白光平行光分成多个不同颜色的单色光，因此，所述显示面板还包括：设置在所述白光发光层与所述第一光学膜之间的第三光学膜，所述第三光学膜能够将所述白光发光层出射的发散光线转换为平行光。在一些示例中，第三光学膜可以为棱镜膜或其他光学结构，只要能够将发散光线转换为平行光即可。
实施例二
本实施例提供了一种显示装置，包括如上所述的显示面板。所述显示装置可以为：液晶电视、液晶显示器、数码相框、手机、平板电脑等任何具有显示功能的产品或部件。
例如，在所述显示面板为液晶显示面板时，由于第一光学膜仅能将白光平行光分成多个不同颜色的单色光，因此，所述显示装置还包括为所述液晶显示面板提供平行光光源的背光模组。
上述背光模组可以直接包括平行光光源，或者包括普通发散光源与第三光学膜的组合。
实施例三
如图1所示，本实施例的显示装置包括相对设置的第一基板3和第二基板6，第一基板3和第二基板6通过封框胶5封装，在第一基板3和第二基板6之间设置有液晶层。在第一基板3和第二基板6上均贴附有偏光片1。如果入射光为偏振光时，则贴附在第一基板3上的偏光片可以省去。
例如，显示装置还包括为液晶显示面板提供平行光光源的背光模组，背光模组包括平行光光源，或者包括普通发散光源与第三光学膜的组合。在背光模组包括普通发光光源时，普通发光光源可以采用LED(发光二极管)或 OLED(有机电致发光二极管)，第三光学膜可以为棱镜膜或其他光学结构，只要能够将普通发光光源出射的发散光线转换为平行光即可。
如图1所示，在第一基板3朝向第二基板6的一侧设置有第一光学膜2，第一光学膜2可以采用透明绝缘材料制成，第一光学膜2的折射率可以与第一基板3的折射率大致相同，例如，在1.5左右。第一光学膜3上形成有多个纳米级的微结构，使得第一光学膜2能够将入射的白光平行光分成多个不同颜色的单色光，如图3所示，第一光学膜2能够将入射的白光平行光分成红光、蓝光和绿光等单色光。
在一些示例中，如图4所示，在第一光学膜2上形成有多个纳米级的凹槽，凹槽具体可以为长方体凹槽、锥形凹槽、半球形凹槽或半椭球形凹槽。通过对凹槽的长度L和深度H进行设计，可以使得第一光学膜2将入射的白光平行光分成需要的多个单色光，还可以通过对凹槽的长度L和深度H进行设计，来实现需要的出射光方向。例如，出射光方向还可以通过不同介质层的设置产生折射率差异来控制，更可以通过微棱镜来控制。
第一光学膜2将白光平行光分成的单色光色散后的示意图如图5所示，可以看出，光的色散波长分布是连续的彩色光，并且单色光的宽窄不易单独选取使用，需要匹配黑矩阵图形来对应纯色光的出射，从而实现高色域的显示装置。进一步地，如图1所示，显示装置还包括设置在第一光学膜2出光侧的黑矩阵图形4，通过对黑矩阵图形进行设计，如图6所示，使黑矩阵图形与由白光分成的多个不同颜色的单色光的位置相匹配，使得每一镂空部仅允许一种颜色的单色光透过，这样从黑矩阵图形的镂空部就可以仅出射需要的纯色光。例如，取出的红光的波长范围为630nm-780nm，代表波长700nm；取出的绿光的波长范围为500-570nm，代表波长550nm；取出的蓝光的波长范围为420-470nm，代表波长470nm。
本实施例中，如果通过黑矩阵图形取出的不同波长的单色光的亮度不均匀，可以采用亮度修正方法，通过调整驱动液晶的像素电压来实现灰度的相应匹配。例如，如图1或2所示，液晶层可以设置在第二基板6和第一光学膜3之间。在一些示例中，液晶层可以设置在第二基板6和黑矩阵图形4之间。
本实施例中，黑矩阵图形4与第一光学膜2之间还设置有平坦层9，由 于由白光分成的多个不同颜色的单色光的初始发散角度都比较小，因此，平坦层9的厚度可以提供给多个单色光足够的发散距离。如果还需要更大的发散距离，可以通过调整平坦层9的厚度来达到需要的发散距离，从而获得需要的单色光宽度。
例如，由于由白光平行光分出的多个单色光的视角比较小，如图2所示，显示装置还包括位于黑矩阵图形4背向第一光学膜2的一侧的第二光学膜7，第二光学膜7能够扩大单色光的发散角度，从而扩大显示装置的视角。第二光学膜7可以设置在第一基板3或第二基板6上，只要位于黑矩阵图形4背向第一光学膜2的一侧即可。例如，第二光学膜7可以为扩散膜或宽视角膜，例如，第二光学膜7还可以为其他能够扩大单色光发散角度的光学结构，比如具有扩大视角功能的偏振片、液晶膜层、折射率递变材料、凹透镜微结构等，其中液晶膜层可以采用固定排列的盘状液晶或固定排列的其他类液晶。
本实施例在第一基板朝向第二基板的一侧设置有第一光学膜，第一光学膜上形成有多个纳米级的凹槽，白光平行光经过纳米级的凹槽时光线发生衍射和干涉，产生光的色散，从而将入射的白光分成多个不同颜色的单色光，采用本实施例的第一光学膜，可以代替彩色滤光片实现彩色显示，并且由于本实施例是将白光分成多个不同颜色的单色光，而不是将白光中其他颜色滤除而得到单色光，因此能够降低显示装置的光效损失，极大地提高显示装置的出光效率。
实施例四
如图7所示，本实施例的显示装置包括相对设置的第一基板3和第二基板6，第一基板3和第二基板6通过封框胶5封装。第二基板6为封装基板，第一基板3为OLED阵列基板，OLED阵列基板上形成有白光发光层，显示装置还包括设置在白光发光层出光侧的第三光学膜8，第三光学膜8能够将白光发光层出射的白光发散光线转换为白光平行光。在一些示例中，第三光学膜可以为棱镜膜或其他光学结构，只要能够将发散光线转换为平行光即可。
如图7所示，在第一基板3朝向第二基板6的一侧设置有第一光学膜2，第二光学膜2位于第三光学膜8背向白光发光层的一侧，第一光学膜2可以采用透明绝缘材料制成，第一光学膜2的折射率可以与第一基板3的折射率大致相同，例如，在1.5左右。第一光学膜3上形成有多个纳米级的微结构， 使得第一光学膜2能够将入射的白光平行光分成多个不同颜色的单色光，如图3所示，第一光学膜2能够将入射的白光平行光分成红光、蓝光和绿光等单色光。
例如，如图4所示，在第一光学膜2上形成有多个纳米级的凹槽，凹槽例如可以为长方体凹槽、锥形凹槽、半球形凹槽或半椭球形凹槽。通过对凹槽的长度L和深度H进行设计，可以使得第一光学膜2将入射的白光平行光分成需要的多个单色光，还可以通过对凹槽的长度L和深度H进行设计，来实现需要的出射光方向。例如，出射光方向还可以通过不同介质层的设置产生折射率差异来控制，更可以通过微棱镜来控制。
第一光学膜2将白光平行光分成的单色光色散后的示意图如图5所示，可以看出，光的色散波长分布是连续的彩色光，并且单色光的宽窄不易单独选取使用，需要匹配黑矩阵图形来对应纯色光的出射，从而实现高色域的显示装置。例如，如图7所示，显示装置还包括设置在第一光学膜2出光侧的黑矩阵图形4，通过对黑矩阵图形进行设计，如图6所示，使黑矩阵图形与由白光分成的多个不同颜色的单色光的位置相匹配，使得每一镂空部仅允许一种颜色的单色光透过，这样从黑矩阵图形的镂空部就可以仅出射需要的纯色光。例如，取出的红光的波长范围为630nm-780nm，代表波长700nm；取出的绿光的波长范围为500-570nm，代表波长550nm；取出的蓝光的波长范围为420-470nm，代表波长470nm。
本实施例中，如果通过黑矩阵图形取出的不同波长的单色光的亮度不均匀，可以采用亮度修正方法，通过调整像素电压来实现灰度的相应匹配。
本实施例中，黑矩阵图形4与第一光学膜2之间还设置有平坦层9，由于由白光分成的多个不同颜色的单色光的初始发散角度都比较小，因此，平坦层9的厚度可以提供给多个单色光足够的发散距离。如果还需要更大的发散距离，可以通过调整平坦层9的厚度来达到需要的发散距离，从而获得需要的单色光宽度。
例如，由于由白光平行光分出的多个单色光的视角比较小，如图7所示，显示装置还包括位于黑矩阵图形4背向第一光学膜2的一侧的第二光学膜7，第二光学膜7能够扩大单色光的发散角度，从而扩大显示装置的视角。第二光学膜7可以设置在第一基板3或第二基板6上，只要位于黑矩阵图形4背 向第一光学膜2的一侧即可。例如，第二光学膜7可以为扩散膜或宽视角膜，例如，第二光学膜7还可以为其他能够扩大单色光发散角度的光学结构，比如具有扩大视角功能的偏振片、液晶膜层、折射率递变材料、凹透镜微结构等，其中液晶膜层可以采用固定排列的盘状液晶或固定排列的其他类液晶。
例如，图8示意性地示出了根据本公开一些示例的显示面板的平面结构示意图。例如，所述显示面板包括显示区域20和围绕在所述显示区域20的周边区域10，所述多个纳米级的微结构30至少分布在所述显示面板的整个显示区域20。
例如，如图8所示，所述多个镂空部包括供第一颜色的光透过的多个第一镂空部41、供第二颜色的光透过的多个第二镂空部42和供第三颜色的光透过的多个第三镂空部43，所述多个第一镂空部41、所述多个第二镂空部42和所述多个第三镂空部43分别均匀地分布在所述显示面板的整个显示区域。
需要注意地是，图8仅仅是示意性地说明了纳米级的微结构和黑矩阵的镂空部在显示面板的显示区域的分布，其中的表示微结构30和镂空部41、42和43的矩形形状并不必然表示微结构和镂空部的形状，微结构和镂空部的矩形形状可以采取任意合适的形状。例如，这些分布在显示区域的多个镂空部41、42和43可以对应于显示面板的多个子像素，由于不同的镂空部可以透光不同颜色的光，且每个子像素的亮度又可以通过液晶层的调制，因此，能够组合成不同颜色的光，进行彩色显示。
本实施例在第一基板朝向第二基板的一侧设置有第一光学膜，第一光学膜上形成有多个纳米级的凹槽，白光平行光经过纳米级的凹槽时光线发生衍射和干涉，产生光的色散，从而将入射的白光分成多个不同颜色的单色光，采用本实施例的第一光学膜，可以代替彩色滤光片实现彩色显示，并且由于本实施例是将白光分成多个不同颜色的单色光，而不是将白光中其他颜色滤除而得到单色光，因此能够降低显示装置的光效损失，极大地提高显示装置的出光效率。
以上所述仅是本发明的示范性实施方式，而非用于限制本发明的保护范围，本发明的保护范围由所附的权利要求确定。
本申请要求于2016年1月8日递交的中国专利申请第201610011794.0 号的优先权，在此全文引用上述中国专利申请公开的内容以作为本申请的一部分。

Claims (18)

  1. 一种显示面板，包括相对设置的第一基板和第二基板，其中，所述第一基板朝向所述第二基板的一侧设置有第一光学膜，所述第一光学膜上形成有多个纳米级的微结构，使得所述第一光学膜能够将入射的白光分成多个不同颜色的单色光。
  2. 根据权利要求1所述的显示面板，其中，所述显示面板包括显示区域和围绕在所述显示区域的周边区域，所述多个纳米级的微结构至少分布在所述显示面板的整个显示区域。
  3. 根据权利要求1或2所述的显示面板，其中，所述入射的白光为平行光。
  4. 根据权利要求1-3中任一项所述的显示面板，其中，所述第一光学膜上的多个纳米级的微结构为多个纳米级的凹槽。
  5. 根据权利要求4所述的显示面板，其中，所述凹槽为长方体凹槽、锥形凹槽、半球形凹槽或半椭球形凹槽。
  6. 根据权利要求2所述的显示面板，还包括：
    形成在所述第一光学膜出光侧的包括有多个镂空部的黑矩阵图形，其中，每一镂空部仅允许一种颜色的单色光透过。
  7. 根据权利要求6所述的显示面板，还包括：
    形成在所述黑矩阵图形和所述第一光学膜之间的平坦层。
  8. 根据权利要求6所述的显示面板，还包括：
    第二光学膜，被配置为扩大单色光发散角度，所述第二光学膜位于所述黑矩阵图形和所述第二基板之间或位于所述第二基板背向所述第一基板的一侧。
  9. 根据权利要求8所述的显示面板，其中，所述第二光学膜为扩散膜或宽视角膜。
  10. 根据权利要求1-9中任一项所述的显示面板，还包括：
    第四光学膜，设置在所述第一光学膜出光侧，被配置为调整单色光的出射方向。
  11. 根据权利要求6所述的显示面板，其中，所述多个镂空部包括供第 一颜色的光透过的多个第一镂空部、供第二颜色的光透过的多个第二镂空部和供第三颜色的光透过的多个第三镂空部，所述多个第一镂空部、所述多个第二镂空部和所述多个第三镂空部分别均匀地分布在所述显示面板的整个显示区域。
  12. 根据权利要求1-11中任一项所述的显示面板，其中，所述显示面板为液晶显示面板。
  13. 根据权利要求12所述的显示面板，还包括设置在所述第一光学膜和所述第二基板之间的液晶层。
  14. 根据权利要求1-11中任一项所述的显示面板，其中，所述显示面板为OLED显示面板，所述第一基板为OLED阵列基板或封装基板，所述OLED阵列基板上形成有白光发光层，所述第一光学膜位于所述白光发光层的出光侧。
  15. 根据权利要求14所述的显示面板，还包括：
    第三光学膜，设置在所述白光发光层与所述第一光学膜之间，且被配置为将所述白光发光层出射的发散光线转换为平行光。
  16. 一种显示装置，包括如权利要求1-11中任一项所述的显示面板。
  17. 根据权利要求16所述的显示装置，其中，所述显示面板为液晶显示面板，所述显示装置还包括为所述液晶显示面板提供平行光光源的背光模组。
  18. 根据权利要求16所述的显示装置，其中，所述显示面板为OLED显示面板，所述第一基板为OLED阵列基板或封装基板，所述OLED阵列基板上形成有白光发光层，所述第一光学膜位于所述白光发光层的出光侧。
PCT/CN2016/103000 2016-01-08 2016-10-24 显示面板及显示装置 WO2017118162A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US15/529,785 US10234713B2 (en) 2016-01-08 2016-10-24 Display panel and display device

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201610011794.0 2016-01-08
CN201610011794.0A CN106959540A (zh) 2016-01-08 2016-01-08 显示面板及显示装置

Publications (1)

Publication Number Publication Date
WO2017118162A1 true WO2017118162A1 (zh) 2017-07-13

Family

ID=59273229

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2016/103000 WO2017118162A1 (zh) 2016-01-08 2016-10-24 显示面板及显示装置

Country Status (3)

Country Link
US (1) US10234713B2 (zh)
CN (1) CN106959540A (zh)
WO (1) WO2017118162A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN113748531B (zh) * 2019-04-18 2024-05-21 3M创新有限公司 具有颜色校正部件的有机发光二极管显示器
CN114167650B (zh) * 2020-09-11 2023-10-24 京东方科技集团股份有限公司 彩色滤光片、图像传感器和摄像装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070139582A1 (en) * 2003-08-19 2007-06-21 International Business Machine Corporation Color filterless display device, optical element, and manufacture
CN101498802A (zh) * 2008-02-01 2009-08-05 奇美电子股份有限公司 彩色滤光片结构及其制造方法、液晶显示装置
TW201024806A (en) * 2008-12-31 2010-07-01 Ind Tech Res Inst Color dividing optical device and image apparatus with the application
CN205281080U (zh) * 2016-01-08 2016-06-01 京东方科技集团股份有限公司 显示面板及显示装置
CN205485174U (zh) * 2016-01-08 2016-08-17 京东方科技集团股份有限公司 显示面板及显示装置

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH09318942A (ja) * 1996-05-28 1997-12-12 Mitsubishi Electric Corp カラー液晶表示装置
JP2001188230A (ja) * 1999-12-28 2001-07-10 Fuji Photo Film Co Ltd 液晶表示装置
JP2007011313A (ja) * 2005-05-31 2007-01-18 Sharp Corp 液晶表示装置およびその製造方法
JP4847304B2 (ja) * 2006-12-04 2011-12-28 株式会社リコー 光学素子および光学装置
CN100538408C (zh) * 2007-11-09 2009-09-09 清华大学 一种光栅及其背光模组
CN103094312B (zh) * 2013-01-11 2015-08-19 京东方科技集团股份有限公司 有机发光显示面板
CA2912888C (en) * 2014-11-25 2018-04-03 Hao Jiang Methods for fabricating color image display devices comprising structural color pixels from a generic stamp

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20070139582A1 (en) * 2003-08-19 2007-06-21 International Business Machine Corporation Color filterless display device, optical element, and manufacture
CN101498802A (zh) * 2008-02-01 2009-08-05 奇美电子股份有限公司 彩色滤光片结构及其制造方法、液晶显示装置
TW201024806A (en) * 2008-12-31 2010-07-01 Ind Tech Res Inst Color dividing optical device and image apparatus with the application
CN205281080U (zh) * 2016-01-08 2016-06-01 京东方科技集团股份有限公司 显示面板及显示装置
CN205485174U (zh) * 2016-01-08 2016-08-17 京东方科技集团股份有限公司 显示面板及显示装置

Also Published As

Publication number Publication date
US10234713B2 (en) 2019-03-19
CN106959540A (zh) 2017-07-18
US20180081235A1 (en) 2018-03-22

Similar Documents

Publication Publication Date Title
US10663641B2 (en) Display panel and display device
US9612476B2 (en) Structure of high color gamut liquid crystal display module
US9651825B2 (en) Liquid crystal lens display device with light shield structure
WO2018072508A1 (zh) 显示装置及其显示方法
TWI670549B (zh) 顯示單元結構及使用量子棒之顯示元件
US10203545B2 (en) Display panels and polarizers thereof
CN109343275B (zh) 一种背光模组及显示装置
US10025090B2 (en) Display panel, manufacturing method thereof, and display device
US10146082B2 (en) Display devices and the color filters thereof
WO2016026181A1 (zh) 彩色液晶显示模组结构及其背光模组
US20210165270A1 (en) Reflective photonic crystal color film, display device using the same and fabricating method therefor
WO2019062290A1 (zh) 发光装置及其发光光谱的调节方法、背光模组以及液晶显示装置
JP2004287323A (ja) 半透過型液晶表示装置
KR102298922B1 (ko) 액정표시장치
US20180059471A1 (en) Display panel and display device
US9841626B2 (en) Liquid crystal devices
WO2017118162A1 (zh) 显示面板及显示装置
WO2017201774A1 (zh) 一种背光模组以及液晶显示装置
US20160377788A1 (en) Backlight module and liquid crystal display device using the same
WO2017118069A1 (zh) 显示面板及显示装置
WO2018192298A1 (zh) 显示装置及显示方法
CN106959544B (zh) 一种背光模组、液晶显示器及其制备工艺
US9291867B2 (en) Double layer liquid crystal (LC) fabry-perot (FP) filter display device
KR20060065377A (ko) 액정 표시 장치
Jak et al. Color‐separating backlight for improved LCD efficiency

Legal Events

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

Ref document number: 15529785

Country of ref document: US

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

Ref document number: 16883290

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 16883290

Country of ref document: EP

Kind code of ref document: A1

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 24.06.2019)

122 Ep: pct application non-entry in european phase

Ref document number: 16883290

Country of ref document: EP

Kind code of ref document: A1