WO2021227042A1 - 显示装置及其制造方法 - Google Patents

显示装置及其制造方法 Download PDF

Info

Publication number
WO2021227042A1
WO2021227042A1 PCT/CN2020/090607 CN2020090607W WO2021227042A1 WO 2021227042 A1 WO2021227042 A1 WO 2021227042A1 CN 2020090607 W CN2020090607 W CN 2020090607W WO 2021227042 A1 WO2021227042 A1 WO 2021227042A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
shielding structure
hole
touch
display panel
Prior art date
Application number
PCT/CN2020/090607
Other languages
English (en)
French (fr)
Inventor
曾利
王策
汤强
卿馨
Original Assignee
京东方科技集团股份有限公司
成都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, 成都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 CN202080000753.6A priority Critical patent/CN113994253B/zh
Priority to US17/278,697 priority patent/US11531228B2/en
Priority to PCT/CN2020/090607 priority patent/WO2021227042A1/zh
Publication of WO2021227042A1 publication Critical patent/WO2021227042A1/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
    • 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
    • H10K59/871—Self-supporting sealing arrangements
    • 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
    • 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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • G02F1/133331—Cover glasses
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/13338—Input devices, e.g. touch panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements

Definitions

  • the present disclosure relates to the field of display devices, and in particular, to a display device and a manufacturing method thereof.
  • a hole is usually punched on the display screen and the camera is arranged in the hole.
  • the embodiments of the present disclosure provide a display device and a manufacturing method thereof.
  • an embodiment of the present disclosure provides a display device, the display device includes a display screen, a transparent cover plate and a first light-shielding structure, and the display screen includes a display panel, a transparent adhesive layer, a touch control structure, and a second light-shielding structure.
  • a light-shielding structure, the transparent adhesive layer, the touch structure and the transparent cover are sequentially stacked on the display panel,
  • the display screen has a through hole penetrating the display panel, the transparent adhesive layer and the touch structure, and the display panel has a non-display area surrounding the through hole and a display surrounding the non-display area Area;
  • the first light-shielding structure is on the transparent cover plate and surrounds the through hole
  • the second light-shielding structure is on the touch structure and surrounds the through hole
  • the first light-shielding structure is on the display
  • the orthographic projection on the panel and the orthographic projection of the second light shielding structure on the display panel are both located in the non-display area, and the first light shielding structure is configured to shield light from the second through the through hole.
  • the side of the structure close to the display panel obliquely enters the transparent cover to block the light.
  • the first light shielding structure has a circular ring shape, the inner diameter of the first light shielding structure is smaller than the diameter of the through hole, and the outer diameter of the first light shielding structure is larger than the diameter of the through hole.
  • the inner diameter of the first shading structure satisfies the following relationship:
  • D 1 is the inner diameter of the first shading structure
  • h is the vertical distance between the first shading structure and the second shading structure
  • D 0 is the diameter of the through hole
  • n is the transparent adhesive
  • d is the thickness of the transparent adhesive layer
  • a is the minimum distance from the boundary of the non-display area and the display area to the through hole in the radial direction of the through hole.
  • the inner diameter of the first shading structure satisfies the following relationship:
  • D 1 is the inner diameter of the first light-shielding structure
  • D 0 is the diameter of the through hole
  • m 1 is the shape tolerance of the through hole
  • m 2 is the difference between the transparent cover plate and the display panel. Fitting tolerance
  • m 3 is the shape and position tolerance of the first shading structure.
  • the inner diameter of the first shading structure satisfies the following relationship:
  • h is the vertical distance between the first light-shielding structure and the second light-shielding structure
  • n is the refractive index of the transparent adhesive layer
  • d is the thickness of the transparent adhesive layer
  • a is the In the radial direction of the through hole, the minimum distance difference from the boundary of the non-display area and the display area to the through hole.
  • the outer diameter of the first shading structure satisfies the following relationship:
  • D 2 is the outer diameter of the first light-shielding structure
  • D 0 is the diameter of the through hole
  • a is in the radial direction of the through hole
  • m 2 is the fit tolerance of the transparent cover plate and the display panel
  • m 3 is the shape and position tolerance of the first shading structure.
  • the second light shielding structure has a circular ring shape, and the inner diameter of the second light shielding structure is the same as the inner diameter of the through hole.
  • the outer diameter of the second light shielding structure satisfies the following relationship:
  • D 3 is the outer diameter of the second light-shielding structure
  • D 0 is the diameter of the through hole
  • a is in the radial direction of the through hole
  • m 4 is the fit tolerance of the touch structure and the display panel
  • m 5 is the form and position tolerance of the second shading structure.
  • the orthographic projection of the second shading structure on the display panel is located within the orthographic projection of the first shading structure on the display panel.
  • the touch structure has a first surface close to the display panel and a second surface close to the transparent cover, and the second light shielding structure is located at least one of the following positions: the first surface , The second surface, or between the first surface and the second surface.
  • the touch structure includes a substrate layer, a plurality of touch electrodes, and an insulating layer, the plurality of touch electrodes are located on one side of the substrate layer, and the insulating layer covers the plurality of touch electrodes.
  • the control electrode On the control electrode,
  • the second light shielding structure is located on at least one of the substrate layer and the insulating layer.
  • the thickness of the first light-shielding structure is 1 ⁇ m to 5 ⁇ m
  • the thickness of the second light-shielding structure is 1 ⁇ m to 5 ⁇ m.
  • the material of the first light shielding structure is ink or opaque photoresist
  • the material of the second light shielding structure is ink or opaque photoresist
  • the photoresist layer contains black carbon particles.
  • embodiments of the present disclosure also provide a method of manufacturing a display device, the method including:
  • a through hole penetrating the display panel, the transparent adhesive layer, the light shielding pattern, and the touch structure is formed to obtain a display screen with a second light shielding structure.
  • the display panel has a non-conductive hole surrounding the through hole.
  • a display area and a display area surrounding the non-display area, the second light-shielding structure includes the remaining part of the light-shielding pattern after the through hole is formed, the second light-shielding structure surrounds the through hole, the second The orthographic projection of the light-shielding structure on the display panel is located in the non-display area;
  • the first light shielding structure is configured to shield light obliquely incident to the transparent cover plate from a side of the second light shielding structure close to the display panel through the through hole.
  • the forming a light-shielding pattern on the touch control structure includes:
  • the light-shielding pattern is formed on at least one of the other surface of the substrate layer and the insulating layer to obtain the touch control structure.
  • the method further includes:
  • the forming a light-shielding pattern on the touch control structure includes:
  • An insulating layer is formed on the plurality of touch electrodes and the light shielding pattern to obtain the touch structure.
  • the first light shielding structure on the transparent cover and the second light shielding structure on the touch structure can shield part of the light emitted by the display panel.
  • Both the first light shielding structure and the second light shielding structure surround the display panel and the transparent adhesive layer.
  • the through hole of the touch structure, and the orthographic projections of the first shading structure and the second shading structure on the display panel are both located in the non-display area. It will be blocked by the second light-shielding structure, so that most of the light cannot reach the through hole. A small part of the light enters the through hole from the side of the second light-shielding structure close to the display panel, and obliquely enters the transparent cover. It will be blocked by the first light-shielding layer to prevent this part of the light from shining out of the through hole, thereby preventing this part of the light from being observed by the observer, which is beneficial to improve the display effect of the display device.
  • FIG. 1 is a top view of a display device in the related art
  • Figure 2 is a cross-sectional view of A-A in Figure 1;
  • FIG. 3 is a schematic diagram of a partial structure of a display device provided by an embodiment of the present disclosure.
  • FIG. 4 is a schematic diagram of a partial structure of a display device provided by an embodiment of the present disclosure.
  • FIG. 5 is a schematic diagram of a partial structure of a display device provided by an embodiment of the present disclosure.
  • FIG. 6 is a schematic diagram of a partial structure of a touch structure provided by an embodiment of the present disclosure.
  • FIG. 7 is a top view of a touch structure provided by an embodiment of the present disclosure.
  • FIG. 8 is a top view of a touch structure provided by an embodiment of the present disclosure.
  • FIG. 9 is a schematic diagram of a partial structure of a display device provided by an embodiment of the present disclosure.
  • FIG. 10 is a schematic structural diagram of a display panel provided by an embodiment of the present disclosure.
  • FIG. 11 is a flowchart of a manufacturing method of a display device according to an embodiment of the present disclosure.
  • FIG. 12 is a flowchart of a manufacturing method of a display device according to an embodiment of the present disclosure.
  • FIG. 13 is a schematic structural diagram of a transparent cover provided by an embodiment of the present disclosure.
  • FIG. 14 is a schematic diagram of a manufacturing process of a touch structure provided by an embodiment of the present disclosure.
  • FIG. 15 is a schematic diagram of a manufacturing process of a touch structure provided by an embodiment of the present disclosure.
  • FIG. 16 is a top view of a touch structure provided by an embodiment of the present disclosure.
  • FIG. 17 is a schematic diagram of a through hole forming process provided by an embodiment of the present disclosure.
  • FIG. 1 is a top view of a display device in the related art.
  • Fig. 2 is a cross-sectional view taken along the line A-A in Fig. 1.
  • the display device includes a display screen 100 and a transparent cover 200 stacked on the display screen 100.
  • the display screen 100 includes a display panel 10, a transparent adhesive layer 20 and a touch structure 30 stacked in sequence.
  • the display screen 100 has a through hole 100 a penetrating the display panel 10, the transparent adhesive layer 20 and the touch structure 30.
  • the display panel 10 has a non-display area 101 surrounding the through hole 100 a and a display area 102 surrounding the non-display area 101.
  • the display area 102 is used for screen display, and the non-display area 101 is not used for screen display.
  • the boundary between the display area 102 and the non-display area 101 is indicated by two parallel spaced dotted lines.
  • part of the light emitted by the display panel 10 will obliquely radiate in the direction of the through hole 100a and enter the through hole 100a from the hole wall.
  • this part of the light will enter the observer’s Eyes, thereby affecting the display effect of the display device.
  • FIG. 3 is a schematic diagram of a partial structure of a display device provided by an embodiment of the present disclosure.
  • the display device is any product or component with a display function such as a mobile phone, a tablet computer, a television, a monitor, a notebook computer, a digital photo frame, a navigator, etc.
  • the display device includes a display screen 100, a transparent cover 200 and a first shading structure 51.
  • the display screen 100 includes a display panel 10, a transparent adhesive layer 20, a touch structure 30 and a second light-shielding structure 52.
  • the transparent adhesive layer 20, the touch structure 30 and the transparent cover 200 are sequentially stacked on the display panel 10.
  • the transparent adhesive layer 20, the touch structure 30, and the transparent cover 200 are stacked in sequence. Placed on the display panel 10", the display panel 10, the transparent adhesive layer 20, the touch structure 30 and the transparent cover 200 are not necessarily in direct contact, and other structures may be provided between any two structures. structure.
  • the transparent cover 200 is cover glass (English: Cover Glass; abbreviated as CG).
  • the transparent adhesive layer 20 is a bottom optical adhesive (English: Bottom Optically Clear Adhesive; abbreviation: BOCA).
  • BOCA Bottom Optically Clear Adhesive
  • the underlying optical glue has high transparency and can reduce the impact on the brightness of the display panel 10.
  • the display screen 100 has a through hole 100 a penetrating the display panel 10, the transparent adhesive layer 20 and the touch structure 30.
  • the display panel 10 has a non-display area 101 surrounding the through hole 100 a and a display area 102 surrounding the non-display area 101.
  • the first light-shielding structure 51 is on the transparent cover 200 and surrounds the through hole 100a
  • the second light-shielding structure 52 is on the touch structure 30 and surrounds the through hole 100a
  • the orthographic projection of the first light-shielding structure 51 on the display panel 10 and the second The orthographic projections of the light shielding structure 52 on the display panel 10 are all located in the non-display area 101.
  • the first light shielding structure 51 is configured to shield light obliquely incident to the transparent cover 200 from the side of the second light shielding structure 52 close to the display panel 10 through the through hole 100 a.
  • obliquely incident on the transparent cover 200 means that the light is directed to the transparent cover 200 and the light is not perpendicular to the transparent cover 200.
  • the first light shielding structure on the transparent cover and the second light shielding structure on the touch structure can shield part of the light emitted by the display panel.
  • Both the first light shielding structure and the second light shielding structure surround the display panel and the transparent adhesive layer.
  • the through hole of the touch structure, and the orthographic projections of the first shading structure and the second shading structure on the display panel are both located in the non-display area. It will be blocked by the second light-shielding structure, so that most of the light cannot reach the through hole. A small part of the light enters the through hole from the side of the second light-shielding structure close to the display panel, and obliquely enters the transparent cover. It will be blocked by the first light-shielding layer to prevent this part of the light from shining out of the through hole, thereby preventing this part of the light from being observed by the observer, which is beneficial to improve the display effect of the display device.
  • the first light-shielding structure 51 and the second light-shielding structure 52 are both ring-shaped, and the first light-shielding structure 51 and the second light-shielding structure 52 surround the through hole 100a means that the first light-shielding structure 51 and the second light-shielding structure 52 are concentric with the through hole 100a.
  • the display screen 100 usually further includes a polarizer (English: Polarizer; abbreviated as: POL) 40, and the polarizer 40 is located between the touch structure 30 and the transparent cover 200.
  • the polarizer 40 is connected to the transparent cover 200 through a top optical adhesive (English: Top Optically Clear Adhesive; TOCA for short) 60.
  • the first light shielding structure 51 is located on a side of the transparent cover 200 close to the display panel 10.
  • the transparent cover 200 is usually a structure that can be directly touched.
  • the first shading structure 51 is arranged on the side of the transparent cover 200 close to the display panel 10 to avoid the first shading during use. Falling off of structure 51.
  • the touch structure 30 has a first surface 30 a close to the display panel 10 and a second surface 30 b close to the transparent cover 200.
  • the second light shielding structure 52 is located on the first surface 30a. Part of the light emitted by the display panel 10 is directly blocked by the second light-shielding structure 52 on the first surface 30a after passing through the transparent adhesive layer 20, and cannot continue to enter the touch structure 30.
  • an area with a width equal to the thickness of the transparent adhesive layer 20 (the area 20a in FIG. 3) enters the through hole 100a.
  • FIG. 4 is a schematic diagram of a partial structure of a display device provided by an embodiment of the present disclosure.
  • the second light-shielding structure 52 is located on the second surface 30b.
  • part of the light emitted by the display panel 10 enters the touch structure 30 after passing through the transparent adhesive layer 20, and then is blocked by the second light shielding structure 52 on the second surface 30b.
  • the light will be located on the side of the second light-shielding structure 52 close to the display panel 10 from the hole wall, and a region having a width equal to the sum of the thickness of the transparent adhesive layer 20 and the thickness of the touch structure 30 (area 20b in FIG. 4) Enter the through hole 100a.
  • FIG. 5 is a schematic diagram of a partial structure of a display device provided by an embodiment of the present disclosure.
  • the second light shielding structure 52 is located between the first surface 30a and the second surface 30b. That is, the second light-shielding structure 52 is located in the touch structure 30. In this way, part of the light emitted by the display panel 10 enters the touch structure 30 after passing through the transparent adhesive layer 20, and then is blocked by the second light shielding structure 52 located in the touch structure 30.
  • the light will be located on the side of the second light-shielding structure 52 close to the display panel 10 from the hole wall, and an area with a width smaller than the sum of the thickness of the transparent adhesive layer 20 and the thickness of the touch structure 30 (area 20c in FIG. 5) Enter the through hole 100a.
  • FIGS. 3 to 5 show three arrangements of the second light shielding structure 52.
  • the second light shielding structure 52 is distributed in at least one of the following positions: the first surface 30a, the second surface 30b of the touch structure 30, or Between the first surface 30a and the second surface 30b.
  • the second light shielding structure 52 is distributed on the first surface 30 a and the second surface 30 b of the touch structure 30.
  • FIG. 6 is a schematic diagram of a partial structure of a touch structure provided by an embodiment of the present disclosure.
  • the touch structure 30 includes a substrate layer 31, a plurality of touch electrodes 32, and an insulating layer 33.
  • the plurality of touch electrodes 32 are located on one side of the substrate layer 31, and the insulating layer 33 covers the plurality of touch electrodes. ⁇ 32 ⁇ Control electrode 32 on.
  • the second light shielding structure 52 and the plurality of touch electrodes 32 are located on the same surface of the substrate layer 31, and the second light shielding structure 52 is covered by the insulating layer 33, that is, the second light shielding structure 52 is located in the touch structure 30.
  • the second light-shielding structure 52 may fade under the erosion of water, oxygen, etc., resulting in a weakened blocking effect on light.
  • the second light-shielding structure 52 and the plurality of touch electrodes 32 are covered by the insulating layer 33. While providing insulation, the insulating layer 33 can also protect the second light-shielding structure 52 and reduce the erosion rate of the second light-shielding structure 52 by water, oxygen, etc.
  • the touch structure 30 can be divided into resistive type, capacitive type, infrared type, and the like.
  • the capacitive touch structure has the advantages of high sensitivity, long life, and high light transmittance.
  • the capacitive touch structure can be either self-capacitance type or mutual-capacitance type.
  • the plurality of touch electrodes 32 only include self-capacitance electrodes; when the capacitive touch structure is of a mutual capacitance type, the plurality of touch electrodes 32 include touch drive electrodes and touch control electrodes. Induction electrode.
  • FIG. 7 is a top view of a touch structure provided by an embodiment of the present disclosure.
  • the touch structure is a self-capacitive capacitive touch structure.
  • a plurality of touch electrodes 32 are arrayed on the substrate layer 31, and the touch structure 30 further includes a plurality of touch signal lines 34.
  • the plurality of touch signal lines 34 and the plurality of touch electrodes 32 are one One correspondence connection.
  • FIG. 8 is a top view of a touch structure provided by an embodiment of the present disclosure.
  • the touch structure is a mutual capacitance type capacitive touch structure.
  • the plurality of touch electrodes 32 includes a first touch electrode 321 and a second touch electrode 322.
  • the plurality of first touch electrodes 321 constitute a first touch electrode line extending in the x direction
  • the plurality of second touch electrodes 322 constitute a second touch electrode line extending in the y direction.
  • the plurality of first touch electrode lines and the plurality of second touch electrode lines cross each other, thereby forming a touch capacitance at the crossing position of the first touch electrode line and the second touch electrode line.
  • the touch structure 30 further includes a plurality of first touch signal lines 341 and a plurality of second touch signal lines 342.
  • Each first touch signal line 341 is electrically connected to a first touch electrode line extending in the x direction
  • each second touch signal line 342 is electrically connected to a second touch electrode line extending in the y direction.
  • first touch signal lines 341 and second touch signal lines 342 in FIG. 8 are shown.
  • each first touch electrode line and one first touch signal line 341 is electrically connected.
  • Each second touch electrode line is electrically connected to a second touch signal line 342. In this way, the touch signal generated by each touch electrode 32 can pass through the first touch signal line 341 or the second touch signal line 342.
  • the second touch signal line 342 is transmitted to the external touch chip.
  • the substrate layer 31 is a polyimide (English: Polyimide; abbreviation: PI) film, a polyethylene terephthalate (English: Polyethylene terephthalate; abbreviation: PET) film or a cycloolefin polymer (English: Polyimide; abbreviation: PI) film : Cyclo Olefin Polymer; Abbreviation: COP) film.
  • PI Polyimide
  • PET Polyethylene terephthalate
  • a cycloolefin polymer English: Polyimide; abbreviation: PI
  • COP Cyclo Olefin Polymer
  • the touch electrode 32 is indium tin oxide (English: Indium Tin Oxides; ITO for short). ITO is conductive and transparent, and is suitable for making touch electrodes.
  • the insulating layer 33 is one or more of SiO x , SiN x , and SiN x O y.
  • FIG. 6 shows an arrangement in which the second light shielding structure 52 is located in the touch structure 30.
  • the transparent adhesive layer 20 may be bonded to the base layer 31, or the transparent adhesive layer 20 may be bonded to the insulating layer 33. If the transparent adhesive layer 20 is adhered to the base layer 31, the side of the base layer 31 away from the insulating layer 33 is the first surface 30a of the touch structure 30, if the transparent adhesive layer 20 is adhered to the insulating layer 33 Above, the side of the substrate layer 31 away from the insulating layer 33 is the second surface 30b of the touch structure 30.
  • the second light-shielding structure 52 is located on the side of the substrate layer 31 away from the insulating layer 33, or the second light-shielding structure 52 is located on the insulating layer 33.
  • the material of the first light-shielding structure 51 is ink or opaque photoresist.
  • the material of the second light-shielding structure 52 is ink or opaque photoresist.
  • the ink can be formed by a screen printing process, and the photoresist can be formed by a patterning process. Both the screen printing process and the patterning process have high precision, which is beneficial to fabricate the first light-shielding structure 51 and the second light-shielding structure 52 with high dimensional accuracy.
  • the photoresist contains black carbon particles.
  • the incorporation of black carbon particles into the photoresist can improve the blocking effect of the first light-shielding structure 51 and the second light-shielding structure 52 on light, and reduce the transmission of light.
  • the thickness of the first light-shielding structure 51 is 1 ⁇ m to 5 ⁇ m
  • the thickness of the second light-shielding structure 52 is 1 ⁇ m to 5 ⁇ m.
  • the thickness of the first light-shielding structure 51 and the thickness of the second light-shielding structure 52 will have a certain impact on the bonding of the display panel 10, the touch structure 30, and the transparent cover 200.
  • the thickness of the first light-shielding structure 51 and the second light-shielding structure 52 The greater the thickness, the greater the impact, but the smaller the thickness, the weaker the blocking effect on light.
  • the first light-shielding structure 51 and the second light-shielding structure 52 should be reduced as much as possible.
  • the thickness of a light-shielding structure 51 and a second light-shielding structure 52 In the thickness range of 1 ⁇ m to 5 ⁇ m, the first light-shielding structure 51 and the second light-shielding structure 52 have sufficient blocking effect on light, and also affect the bonding of the display panel 10, the touch structure 30 and the transparent cover 200 small.
  • the thickness of the first light-shielding structure 51 and the second light-shielding structure 52 are both 2 ⁇ m.
  • the size of the first light-shielding structure 51 and the size of the second light-shielding structure 52 also have a greater impact on the light-shielding effect of the two.
  • the first light-shielding structure 51 and the second light-shielding structure 52 of suitable size can further prevent light from being emitted from the through hole. Outside the through hole, the display effect of the display device is further improved.
  • the size of the first light shielding structure 51 and the size setting of the second light shielding structure 52 will be described in detail below.
  • FIG. 9 is a partial structural diagram of a display device provided by an embodiment of the present disclosure.
  • the inner diameter of the first light-shielding structure 51 is smaller than the diameter of the through hole 100a, and the first light-shielding structure 51 The outer diameter of is greater than the diameter of the through hole 100a. Since the inner diameter of the first light-shielding structure 51 is smaller than the diameter of the through hole 100a, the light originally obliquely incident from the through-hole 100a to the outside of the through-hole 100a will irradiate the first light-shielding structure 51 and be blocked by the first light-shielding structure 51.
  • the inner diameter of the first light shielding structure 51 satisfies the following relationship:
  • D 1 is the inner diameter of the first light-shielding structure 51
  • h is the vertical distance between the first light-shielding structure 51 and the second light-shielding structure 52
  • D 0 is the diameter of the through hole 100a
  • n is the refractive index of the transparent adhesive layer 20
  • D is the thickness of the transparent adhesive layer 20
  • a is the minimum distance from the boundary of the non-display area 101 and the display area 102 to the through hole 100a in the radial direction of the through hole 100a.
  • the refractive index of the transparent adhesive layer 20 is 1.45 to 1.5.
  • the refractive index of the transparent adhesive layer 20 is 1.47.
  • the boundary between the non-display area 101 and the display area 102 is usually a circle.
  • the ring is wide.
  • the maximum refraction angle ⁇ of light refracted from the area into the through hole 100a satisfies the formula (2). Blocked, the light entering the through hole 100a with a smaller refraction angle will only irradiate the first light-shielding structure 51 or the wall of the hole, and will not exit the through-hole 100a, so the inner diameter of the first light-shielding structure 51 satisfies the formula (1) and formula (2) can ensure that the light can be shielded by the first light shielding structure 51.
  • the inner diameter of the first light shielding structure 51 satisfies the following relationship:
  • m 1 is the shape and position tolerance of the through hole 100 a
  • m 2 is the fit tolerance of the transparent cover 200 and the display panel 10
  • m 3 is the shape and position tolerance of the first shading structure 51.
  • the inner diameter of the first light-shielding structure 51 needs to satisfy both formula (1) and formula (3) , That is, the inner diameter of the first shading structure 51 satisfies the following relationship:
  • the inner diameter of the first light shielding structure 51 satisfies the formula (4), it must satisfy both the formula (1) and the formula (3).
  • the first shading structure 51 will block the image displayed in the display area 102.
  • the orthographic projection of the first light-shielding structure 51 on the display panel 10 is required to be located outside the display area 102 in the design to avoid this situation, deviations in the manufacturing process may cause the first light-shielding structure 51 to be on the display panel 10 A part of the orthographic projection is located in the display area 102. Still taking FIG.
  • the first light-shielding structure 51 satisfies the following relationship:
  • D 2 is the outer diameter of the first light shielding structure 51.
  • the outer diameter of the first light-shielding structure 51 is defined by formula (5), and the maximum inner diameter of the first light-shielding structure 51 is defined by formula (1) and formula (3), thereby determining the diameter of the first light-shielding structure 51 size.
  • the distance between the first light-shielding structure 51 and the display area 102 is
  • the distance between the first light shielding structure 51 and the display area 102 may be 0.1 mm to 0.3 mm.
  • m 1 may not exceed 50 ⁇ m. If the process can be achieved, the tolerance should be as small as possible, which is beneficial to improve the light shielding effect.
  • the inner diameter of the second light shielding structure 52 is the same as the inner diameter of the through hole 100a. Since the second light shielding structure 52 cannot extend into the through hole 100a, in order to maximize the light shielding range of the second light shielding structure 52, the inner diameter of the second light shielding structure 52 is the same as the inner diameter of the through hole 100a.
  • the second light-shielding structure 52 will block the display screen displayed in the display area 102, although the design requires the second light-shielding structure 52 to be in
  • the orthographic projections on the display panel 10 are all located outside the display area 102 to avoid this situation, but deviations in the manufacturing process may also cause a part of the second light shielding structure 52 to be located in the display area 102. Still taking FIG.
  • the second light-shielding structure 52 satisfies the following relationship:
  • D 3 is the outer diameter of the second shading structure 52
  • m 4 is the fit tolerance of the touch structure 30 and the display panel 10
  • m 5 is the shape and position tolerance of the second shading structure 52.
  • the distance between the second light-shielding structure 52 and the display area 102 is
  • the distance between the second light shielding structure 52 and the display area 102 may be 0.1 mm ⁇ 0.2 mm.
  • the orthographic projection of the second light-shielding structure 52 on the display panel 10 is within the orthographic projection of the first light-shielding structure 51 on the display panel 10. Since the first light-shielding structure 51 and the second light-shielding structure 52 are not on the same plane, even if the first light-shielding structure 51 and the second light-shielding structure 52 are set in the same color, the two are visually integrated as much as possible, and the observer is When observing the display device from the side of the transparent cover 200, it is still possible to see the boundary between the first light-shielding structure 51 and the second light-shielding structure 52.
  • the first light-shielding structure 51 can be used to shield the second light-shielding structure 52, so that the observer cannot It is easy to perceive the existence of the second light-shielding structure 52, which is beneficial to improve the visual effect of the display device.
  • the display panel 10 is an organic light emitting diode (English: Organic Light-Emitting Diode; OLED for short) display panel.
  • FIG. 10 is a schematic structural diagram of a display panel provided by an embodiment of the present disclosure. As shown in FIG. 10, the display panel 10 includes an array substrate 11, a light emitting device 12, a water blocking layer 13 and a flat layer 14 which are sequentially stacked.
  • the light emitting device 12 may be an OLED light emitting device.
  • the water blocking layer 13 includes one or more of SiO x , SiN x , SiON and Al 2 O 3 , and the thickness of the water blocking layer 13 is 50 nm to 1000 nm, but is not limited thereto.
  • the water blocking layer 13 can be produced by PECVD (plasma enhanced chemical vapor deposition), ALD (atomic layer deposition), or Sputter (sputtering) processes, but is not limited thereto.
  • the flat layer 14 may be acrylic, siloxane, acrylic, etc., but not only this.
  • the flat layer 14 can be produced by processes such as inkjet printing, screen printing, etc., but is not limited thereto.
  • FIG. 11 is a flowchart of a manufacturing method of a display device provided by an embodiment of the present disclosure, and the method is used for manufacturing the aforementioned display device. As shown in Figure 11, the method includes:
  • step S11 a display panel, a touch structure formed with a light-shielding pattern, and a transparent cover plate with a first light-shielding structure formed are provided.
  • step S12 the touch structure is bonded to the display panel through the transparent bonding layer.
  • step S13 a through hole penetrating the display panel, the transparent adhesive layer, the light-shielding pattern and the touch structure is formed to obtain a display screen with a second light-shielding structure.
  • the structure of the display screen with the second light-shielding structure can be referred to as shown in FIGS. 3 to 5.
  • the display panel 10 has a non-display area 101 surrounding the through hole 100a and a display area 102 surrounding the non-display area 101.
  • the remaining part of the light shielding pattern 521 behind the through hole 100 a, the second light shielding structure 52 surrounds the through hole 100 a, and the orthographic projection of the second light shielding structure 52 on the display panel 10 is located in the non-display area 101.
  • step S14 the transparent cover is disposed on the touch structure.
  • the transparent cover 200 is arranged on the touch structure 30, so that the first light-shielding structure 51 surrounds the through hole 100a, the orthographic projection of the first light-shielding structure 51 on the display panel 10 is located in the non-display area 101, and the first light-shielding structure 51 is configured In order to shield the light obliquely incident to the transparent cover 200 from the side of the second light shielding structure 52 close to the display panel 10 through the through hole 100 a.
  • the first light shielding structure on the transparent cover and the second light shielding structure on the touch structure can shield part of the light emitted by the display panel.
  • Both the first light shielding structure and the second light shielding structure surround the display panel and the transparent adhesive layer.
  • the through hole of the touch structure, and the orthographic projections of the first shading structure and the second shading structure on the display panel are both located in the non-display area. It will be blocked by the second light-shielding structure, so that most of the light cannot reach the through hole. A small part of the light enters the through hole from the side of the second light-shielding structure close to the display panel, and obliquely enters the transparent cover. It will be blocked by the first light-shielding layer to prevent this part of the light from shining out of the through hole, thereby preventing this part of the light from being observed by the observer, which is beneficial to improve the display effect of the display device.
  • FIG. 12 is a flowchart of a manufacturing method of a display device according to an embodiment of the present disclosure.
  • the manufacturing method of the display device provided by the present disclosure will be described in detail below with reference to FIGS. 13-17. As shown in Figure 12, the manufacturing method includes:
  • step S21 a transparent cover plate, polarizer and display panel are provided.
  • the transparent cover plate is cover glass.
  • the display panel is an organic light emitting diode display panel.
  • step S22 a first light-shielding structure is formed on the transparent cover plate.
  • FIG. 13 is a schematic structural diagram of a transparent cover provided by an embodiment of the present disclosure.
  • a first light shielding structure 51 is formed on one side of the transparent cover 200.
  • the transparent cover 200 has two opposite sides.
  • the first light shielding structure 51 is located on the side of the transparent cover 200 close to the display panel 10. Since the transparent cover 200 is usually a structure that can be directly touched during the use of the display device, the first light-shielding structure 51 is arranged on the side of the transparent cover 200 close to the display panel 10 to avoid causing damage during use.
  • the first light shielding structure 51 falls off.
  • the material of the first light-shielding structure 51 is ink or opaque photoresist.
  • the first light-shielding structure 51 can be formed on the transparent cover 200 through a screen printing process using ink, and the first light-shielding structure 51 can be formed on the transparent cover 200 through a patterning process using photoresist. Both the screen printing process and the patterning process have high precision, which is beneficial to fabricate the first light-shielding structure 51 with high dimensional accuracy.
  • black carbon particles can be incorporated into the photoresist to make the formed first light-shielding structure 51 appear black, which improves the light-blocking effect of the first light-shielding structure 51 and reduces the effect of light. transmission.
  • the first light-shielding structure 51 has a circular ring shape, and the inner diameter and outer diameter of the first light-shielding structure 51 can be determined according to the aforementioned formulas (1) to (5), and will not be repeated here.
  • step S23 a touch structure formed with a light-shielding pattern is fabricated.
  • the touch structure 30 includes a substrate layer 31, a plurality of touch electrodes 32, and an insulating layer 33.
  • the plurality of touch electrodes 32 are located on one side of the substrate layer 31 and are insulated
  • the layer 33 covers the plurality of touch electrodes 32.
  • the substrate layer 31 is a polyimide film, a polyethylene terephthalate film, or a cycloolefin polymer film.
  • the touch electrode 32 is ITO, which is conductive and transparent, and is suitable for making a touch electrode.
  • the insulating layer 33 is one or more of SiO x , SiN x , and SiN x O y.
  • the touch structure 30 can be manufactured in at least the following two ways:
  • FIG. 14 is a schematic diagram of a manufacturing process of a touch structure provided by an embodiment of the present disclosure. As shown in FIG. 14, the first method of manufacturing the touch structure 30 may include:
  • a light-shielding pattern 521 is formed on at least one of the other surface of the base layer 31 and the insulating layer 33 to obtain the touch structure 30.
  • the touch electrode 32 is located on one side of the base material layer 31 and the light shielding pattern 521 is located on the other side of the base material layer 31.
  • the touch structure 30 has a first surface 30a and a second surface 30b opposite to each other, and the light shielding pattern 521 formed in this method is located on at least one of the first surface 30a and the second surface 30b.
  • FIG. 15 is a schematic diagram of a manufacturing process of a touch structure provided by an embodiment of the present disclosure. As shown in FIG. 15, the second method of manufacturing the touch structure 30 may include:
  • a plurality of touch electrodes 32 and light shielding patterns 521 are formed on one side of the substrate layer 31;
  • An insulating layer 33 is formed on the plurality of touch electrodes 32 and the light shielding pattern 521 to obtain a touch structure 30.
  • the light-shielding pattern 521 formed in this method is located between the first surface 30a and the second surface 30b, that is, located in the touch structure 30.
  • the light-shielding pattern 521 is used to make the second light-shielding structure 52 in the subsequent process.
  • ink or opaque photoresist is used to form the light-shielding pattern 521.
  • the manufacturing method of the light-shielding pattern 521 is the same as the manufacturing method of the first light-shielding structure 51, and both can be manufactured by a screen printing process or a patterning process. Both the screen printing process and the patterning process have high precision, which is beneficial to produce the light-shielding pattern 521 with high dimensional accuracy.
  • FIG. 16 is a top view of a touch structure provided by an embodiment of the present disclosure.
  • the light shielding pattern 521 is circular.
  • the shading pattern 521 is circular, and the second shading structure 52 is circular, in the subsequent manufacturing process, it is necessary to perforate. Through the punching, a part of the shading pattern 521 can be removed, so as to produce a circular ring-shaped second structure. Two light-shielding structure 52. In this way, there is no need to design the inner diameter of the second light-shielding structure 52 to ensure that the inner diameter of the second light-shielding structure 52 manufactured is the same as the diameter of the through hole 100a.
  • the diameter of the light-shielding pattern 521 is the outer diameter of the second light-shielding structure 52 to be fabricated, which can be determined according to the aforementioned formula (6), and will not be repeated here.
  • step S24 the touch structure is bonded to the display panel.
  • the bonding can be performed through a transparent adhesive layer 20, which is a bottom layer optical glue.
  • the underlying optical glue has high transparency and can reduce the impact on the brightness of the display screen 100.
  • step S25 the polarizer is disposed on the touch structure.
  • step S26 a through hole is formed.
  • FIG. 17 is a schematic diagram of a through hole forming process provided by an embodiment of the present disclosure.
  • the through hole 100 a penetrates the display panel 10, the transparent adhesive layer 20, the touch structure 30 and the polarizer 40.
  • a part of the light-shielding pattern 521 is removed, and the remaining part is circular.
  • the second light-shielding structure 52 is the remaining part of the light-shielding pattern 521 after the through hole 100a is formed, thereby obtaining a display with the second light-shielding structure 52 ⁇ 100.
  • step S26 the through hole 100a penetrating the display panel 10, the transparent adhesive layer 20, the touch structure 30 and the polarizer 40 may be formed by laser drilling, punching and punching.
  • step S27 the transparent cover plate is set on the polarizer.
  • the transparent cover 200 and the polarizer 40 are bonded by a top optical glue.
  • the top optical glue has high transparency and can reduce the impact on the brightness of the display panel 10.
  • the first light shielding structure 51 When setting the transparent cover 200, by adjusting the relative position of the transparent cover 200 and the display screen 100, the first light shielding structure 51 surrounds the through hole 100a, and the orthographic projection of the first light shielding structure 51 on the display panel 10 is located in the non-display area 101.

Landscapes

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

Abstract

一种显示装置及其制造方法，属于显示设备领域。该显示装置包括显示屏（100）、透明盖板（200）和第一遮光结构（51），显示屏（100）包括显示面板（10）、透明粘接层（20）、触控结构（30）和第二遮光结构（52），显示屏（100）具有贯通显示面板（10）、透明粘接层（20）和触控结构（30）的通孔（100a）；第一遮光结构（51）在透明盖板（200）上且围绕通孔（100a），第二遮光结构（52）在触控结构（30）上且围绕通孔（100a），第一遮光结构（51）和第二遮光结构（52）在显示面板（10）上的正投影位于非显示区（101），显示面板（10）发出的光在向通孔（100a）的方向斜射过透明粘接层（20）后，受到第二遮光结构（52）的遮挡，少部分光线从第二遮光结构（52）靠近显示面板（10）的一侧进入通孔（100a）内并倾斜入射至透明盖板（200），而这部分光线会受到第一遮光层（51）的遮挡，避免该部分光线被观察者观察到，有利于提升显示装置的显示效。

Description

显示装置及其制造方法 技术领域
本公开涉及显示设备领域，特别涉及一种显示装置及其制造方法。
背景技术
在具有摄像头的显示装置中，为了增大屏占比，通常在显示屏上打孔，将摄像头布置在孔中。
发明内容
本公开实施例提供了一种显示装置及其制造方法。
一方面，本公开实施例提供了一种显示装置，所述显示装置包括显示屏、透明盖板和第一遮光结构，所述显示屏包括显示面板、透明粘接层、触控结构和第二遮光结构，所述透明粘接层、所述触控结构和所述透明盖板依次叠置于所述显示面板上，
所述显示屏具有贯通所述显示面板、所述透明粘接层和所述触控结构的通孔，所述显示面板具有围绕所述通孔的非显示区和围绕所述非显示区的显示区；
所述第一遮光结构在所述透明盖板上且围绕所述通孔，所述第二遮光结构在所述触控结构上且围绕所述通孔，所述第一遮光结构在所述显示面板上的正投影和所述第二遮光结构在所述显示面板上的正投影均位于所述非显示区，所述第一遮光结构被配置为对通过所述通孔从所述第二遮光结构靠近所述显示面板的一侧倾斜入射至所述透明盖板的光进行遮挡。
可选地，所述第一遮光结构呈圆环形，所述第一遮光结构的内径小于所述通孔的直径，所述第一遮光结构的外径大于所述通孔的直径。
可选地，所述第一遮光结构的内径满足如下关系：
Figure PCTCN2020090607-appb-000001
Figure PCTCN2020090607-appb-000002
其中，D 1为所述第一遮光结构的内径，h为所述第一遮光结构和所述第二遮光结构间的垂直距离，D 0为所述通孔的直径，n为所述透明粘接层的折射率，d为所述透明粘接层的厚度，a为在所述通孔的径向上，所述非显示区与所述显示区的边界到所述通孔的最小距离。
可选地，所述第一遮光结构的内径满足如下关系：
Figure PCTCN2020090607-appb-000003
其中，D 1为所述第一遮光结构的内径，D 0为所述通孔的直径，m 1为所述通孔的形位公差，m 2为所述透明盖板和所述显示面板的贴合公差，m 3为所述第一遮光结构的形位公差。
可选地，所述第一遮光结构的内径满足如下关系：
Figure PCTCN2020090607-appb-000004
Figure PCTCN2020090607-appb-000005
其中，h为所述第一遮光结构和所述第二遮光结构间的垂直距离，n为所述透明粘接层的折射率，d为所述透明粘接层的厚度，a为在所述通孔的径向上，所述非显示区与所述显示区的边界到所述通孔的最小距离差。
可选地，所述第一遮光结构的外径满足如下关系：
Figure PCTCN2020090607-appb-000006
其中，D 2为所述第一遮光结构的外径，D 0为所述通孔的直径，a为在所述通孔的径向上，所述非显示区与所述显示区的边界到所述通孔的最小距离，m 2为所述透明盖板和所述显示面板的贴合公差，m 3为所述第一遮光结构的形位公差。
可选地，所述第二遮光结构呈圆环形，所述第二遮光结构的内径与所述通孔的内径相同。
可选地，所述第二遮光结构的外径满足如下关系：
Figure PCTCN2020090607-appb-000007
其中，D 3为所述第二遮光结构的外径，D 0为所述通孔的直径，a为在所述通孔的径向上，所述非显示区与所述显示区的边界到所述通孔的最小距离，m 4为所述触控结构和所述显示面板的贴合公差，m 5为所述第二遮光结构的形位公 差。
可选地，所述第二遮光结构在所述显示面板上的正投影位于所述第一遮光结构在所述显示面板上的正投影内。
可选地，所述触控结构具有靠近所述显示面板的第一表面和靠近所述透明盖板的第二表面，所述第二遮光结构位于以下位置中的至少一个：所述第一表面、所述第二表面、或者所述第一表面和所述第二表面之间。
可选地，所述触控结构包括基材层、多个触控电极和绝缘层，所述多个触控电极位于所述基材层的一面，所述绝缘层覆盖在所述多个触控电极上，
所述第二遮光结构位于所述基材层和所述绝缘层中的至少一个上。
可选地，所述第一遮光结构的厚度为1μm～5μm，所述第二遮光结构的厚度为1μm～5μm。
可选地，所述第一遮光结构的材料为油墨或不透光的光刻胶，所述第二遮光结构的材料为油墨或不透光的光刻胶。
可选地，所述光刻胶层中含有黑炭颗粒。
另一方面，本公开实施例还提供了一种显示装置的制造方法，所述方法包括：
提供透明盖板、触控结构和显示面板；
在所述透明盖板上形成第一遮光结构；
在所述触控结构上形成遮光图形；
通过透明粘接层将所述触控结构粘接至所述显示面板；
形成贯通所述显示面板、所述透明粘接层、所述遮光图形和所述触控结构的通孔，得到具有第二遮光结构的显示屏，所述显示面板具有围绕所述通孔的非显示区和围绕所述非显示区的显示区，所述第二遮光结构包括形成所述通孔后所述遮光图形的剩余部分，所述第二遮光结构围绕所述通孔，所述第二遮光结构在所述显示面板上的正投影位于所述非显示区；
将所述透明盖板设置在所述触控结构上，使所述第一遮光结构围绕所述通孔，所述第一遮光结构在所述显示面板上的正投影位于所述非显示区，所述第一遮光结构被配置为对通过所述通孔从所述第二遮光结构靠近所述显示面板的一侧倾斜入射至所述透明盖板的光进行遮挡。
可选地，所述在所述触控结构上形成遮光图形包括：
提供基材层；
在所述基材层的一面形成多个触控电极；
在所述多个触控电极上形成绝缘层；
在所述基材层的另一面和所述绝缘层中的至少一个上形成所述遮光图形，得到所述触控结构。
可选地，所述方法还包括：
所述在所述触控结构上形成遮光图形包括：
提供基材层；
在所述基材层的一面形成多个触控电极和所述遮光图形；
在所述多个触控电极和所述遮光图形上形成绝缘层，得到所述触控结构。
本公开实施例提供的技术方案带来的有益效果至少包括：
通过透明盖板上的第一遮光结构和触控结构上的第二遮光结构能够对显示面板发出的部分光线进行遮挡，第一遮光结构和第二遮光结构均围绕贯通显示面板、透明粘接层和触控结构的通孔，且第一遮光结构和第二遮光结构在显示面板上的正投影均位于非显示区，显示面板发出的光在向通孔的方向斜射过透明粘接层后，会受到第二遮光结构的遮挡，使大部分光线无法到达通孔中，少部分光线从第二遮光结构靠近显示面板的一侧进入通孔内，并倾斜入射至透明盖板，而这部分光线会受到第一遮光层的遮挡，避免该部分光线射到通孔外，从而避免了该部分光线被观察者观察到，有利于提升显示装置的显示效果。
附图说明
为了更清楚地说明本公开实施例中的技术方案，下面将对实施例描述中所需要使用的附图作简单地介绍，显而易见地，下面描述中的附图仅仅是本公开的一些实施例，对于本领域普通技术人员来讲，在不付出创造性劳动的前提下，还可以根据这些附图获得其他的附图。
图1是相关技术中的一种显示装置的俯视图；
图2是图1的A-A截面图；
图3是本公开实施例提供的一种显示装置的局部结构示意图；
图4是本公开实施例提供的一种显示装置的局部结构示意图；
图5是本公开实施例提供的一种显示装置的局部结构示意图；
图6是本公开实施例提供的一种触控结构的局部结构示意图；
图7是本公开实施例提供的一种触控结构的俯视图；
图8是本公开实施例提供的一种触控结构的俯视图；
图9是本公开实施例提供的一种显示装置的局部结构示意图；
图10是本公开实施例提供的一种显示面板的结构示意图；
图11是本公开实施例提供的一种显示装置的制造方法流程图；
图12是本公开实施例提供的一种显示装置的制造方法流程图；
图13是本公开实施例提供的一种透明盖板的结构示意图；
图14是本公开实施例提供的一种触控结构的制作过程示意图；
图15是本公开实施例提供的一种触控结构的制作过程示意图；
图16是本公开实施例提供的一种触控结构的俯视图；
图17是本公开实施例提供的一种通孔形成过程示意图。
具体实施方式
为使本公开的目的、技术方案和优点更加清楚，下面将结合附图对本公开实施方式作进一步地详细描述。
图1是相关技术中的一种显示装置的俯视图。图2是图1的A-A截面图。如图2所示，该显示装置包括显示屏100和叠置在显示屏100上的透明盖板200，显示屏100包括依次叠置的显示面板10、透明粘接层20和触控结构30。显示屏100具有贯通显示面板10、透明粘接层20和触控结构30的通孔100a，显示面板10具有围绕通孔100a的非显示区101和围绕非显示区101的显示区102。其中显示区102用于画面显示，非显示区101不用于画面显示。图2中，以两根平行间隔的虚线表示出显示区102和非显示区101的界限。
如图2所示，显示面板10发出的部分光线会向通孔100a的方向斜射，并从孔壁进入通孔100a中，在从一定的角度观察显示装置时，这部分光线会进入观察者的眼睛，从而影响显示装置的显示效果。
图3是本公开实施例提供的一种显示装置的局部结构示意图。该显示装置 为手机、平板电脑、电视机、显示器、笔记本电脑、数码相框、导航仪等任何具有显示功能的产品或部件。如图3所示，该显示装置包括显示屏100、透明盖板200和第一遮光结构51。显示屏100包括显示面板10、透明粘接层20、触控结构30和第二遮光结构52。透明粘接层20、触控结构30和透明盖板200依次叠置于显示面板10上。
本公开中的“依次”仅是对所列举的结构的相对关系的限定，并不表示所列举的结构一定直接接触，例如“透明粘接层20、触控结构30和透明盖板200依次叠置于显示面板10上”中，显示面板10、透明粘接层20、触控结构30和透明盖板200之间并非一定是直接接触的，在任意两个结构之间还有可能设置有其它结构。
可选地，透明盖板200为盖板玻璃(英文：Cover Glass；简称：CG)。
可选地，透明粘接层20为底层光学胶(英文：Bottom Optically Clear Adhesive；简称：BOCA)。底层光学胶具有较高的透明度，能减少对显示面板10的亮度影响。
显示屏100具有贯通显示面板10、透明粘接层20和触控结构30的通孔100a，显示面板10具有围绕通孔100a的非显示区101和围绕非显示区101的显示区102。
第一遮光结构51在透明盖板200上且围绕通孔100a，第二遮光结构52在触控结构30上且围绕通孔100a，第一遮光结构51在显示面板10上的正投影和第二遮光结构52在显示面板10上的正投影均位于非显示区101。第一遮光结构51被配置为对通过通孔100a从第二遮光结构52靠近显示面板10的一侧倾斜入射至透明盖板200的光进行遮挡。
本公开中，倾斜入射至透明盖板200是指光线射向透明盖板200，且光线与透明盖板200不垂直。
通过透明盖板上的第一遮光结构和触控结构上的第二遮光结构能够对显示面板发出的部分光线进行遮挡，第一遮光结构和第二遮光结构均围绕贯通显示面板、透明粘接层和触控结构的通孔，且第一遮光结构和第二遮光结构在显示面板上的正投影均位于非显示区，显示面板发出的光在向通孔的方向斜射过透明粘接层后，会受到第二遮光结构的遮挡，使大部分光线无法到达通孔中，少部分光线从第二遮光结构靠近显示面板的一侧进入通孔内，并倾斜入射至透明 盖板，而这部分光线会受到第一遮光层的遮挡，避免该部分光线射到通孔外，从而避免了该部分光线被观察者观察到，有利于提升显示装置的显示效果。
第一遮光结构51和第二遮光结构52均呈环状，第一遮光结构51和第二遮光结构52围绕通孔100a是指第一遮光结构51和第二遮光结构52与通孔100a同心。
可选地，显示屏100通常还包括偏光片(英文：Polarizer；简称：POL)40，偏光片40位于触控结构30和透明盖板200之间。偏光片40通过顶部光学胶(英文：Top Optically Clear Adhesive；简称：TOCA)60与透明盖板200连接。
如图3所示，在通孔100a的径向上，顶部光学胶60与通孔100a之间具有间隙60a，这是为了避免在粘接偏光片40和透明盖板200时，顶部光学胶60受到挤压而溢到通孔100a内。
可选地，第一遮光结构51位于透明盖板200靠近显示面板10的一面。显示装置在使用过程中，透明盖板200通常是可以直接触碰到的结构，将第一遮光结构51布置在透明盖板200靠近显示面板10的一面，能够避免在使用过程中造成第一遮光结构51的脱落。
如图3所示，触控结构30具有靠近显示面板10的第一表面30a和靠近透明盖板200的第二表面30b。第二遮光结构52位于第一表面30a上。显示面板10发出的部分光线在穿过透明粘接层20后直接被位于第一表面30a的第二遮光结构52遮挡，无法继续进入到触控结构30中，光线只会从孔壁上位于第二遮光结构52靠近显示面板10的一侧，一段宽度等于透明粘接层20的厚度的区域(如图3中的区域20a)进入通孔100a。
图4是本公开实施例提供的一种显示装置的局部结构示意图。如图4所示，在该显示装置中，第二遮光结构52位于第二表面30b上。这样显示面板10发出的部分光线在穿过透明粘接层20后会进入触控结构30，然后才被位于第二表面30b的第二遮光结构52遮挡。光线会从孔壁上位于第二遮光结构52靠近显示面板10的一侧，一段宽度等于透明粘接层20的厚度和触控结构30的厚度之和的区域(如图4中的区域20b)进入通孔100a。
图5是本公开实施例提供的一种显示装置的局部结构示意图。如图5所示，在该显示装置中，第二遮光结构52位于第一表面30a和第二表面30b之间。即第二遮光结构52位于触控结构30内。这样显示面板10发出的部分光线在穿过 透明粘接层20后会进入触控结构30，然后被位于触控结构30内的第二遮光结构52遮挡。光线会从孔壁上位于第二遮光结构52靠近显示面板10的一侧，一段宽度小于透明粘接层20的厚度和触控结构30的厚度之和的区域(如图5中的区域20c)进入通孔100a。
作为示例，图3～图5共示出了第二遮光结构52的三种布置方式。为了进一步提高第二遮光结构52对光线的阻挡作用，减少透光的可能，第二遮光结构52分布于以下位置中的至少一个：触控结构30的第一表面30a、第二表面30b、或者第一表面30a和第二表面30b之间。例如第二遮光结构52分布于触控结构30的第一表面30a和第二表面30b。
图6是本公开实施例提供的一种触控结构的局部结构示意图。如图6所示，该触控结构30包括基材层31、多个触控电极32和绝缘层33，多个触控电极32位于基材层31的一面，绝缘层33覆盖在多个触控电极32上。第二遮光结构52和多个触控电极32位于基材层31的同一面上，第二遮光结构52被绝缘层33所覆盖，也即是第二遮光结构52位于触控结构30内。在显示装置老化过程中，第二遮光结构52有可能在水、氧等的侵蚀下褪色，导致对光线的阻挡作用减弱，通过绝缘层33覆盖第二遮光结构52和多个触控电极32，在提供绝缘作用的同时，绝缘层33还可以对第二遮光结构52进行保护，降低水、氧等对第二遮光结构52的侵蚀速度。
按照工作原理，触控结构30可以分为电阻式、电容式、红外线式等。在这些触控结构30中，电容式触控结构具有高灵敏度、长寿命、高透光率等优点。通常，电容式触控结构可以是自电容型的，也可以是互电容型的。当电容式触控结构是自电容型时，多个触控电极32仅包括自电容电极；当电容式触控结构是互电容型时，多个触控电极32包括触控驱动电极和触控感应电极。
图7是本公开实施例提供的一种触控结构的俯视图。该触控结构为自电容型的电容式触控结构。如图7所示，多个触控电极32阵列分布在基材层31上，触控结构30还包括多根触控信号线34，多根触控信号线34与多个触控电极32一一对应连接。
图8是本公开实施例提供的一种触控结构的俯视图。该触控结构为互电容型的电容式触控结构。如图8所示，多个触控电极32包括第一触控电极321和第二触控电极322。多个第一触控电极321构成沿x方向延伸的第一触控电极线， 多个第二触控电极322构成沿y方向延伸的第二触控电极线。多个第一触控电极线和多个第二触控电极线彼此交叉，由此在第一触控电极线和第二触控电极线交叉位置处形成触控电容。通过检测在触控时由于例如手指靠近而导致该触控电容的变化，实现触控位置的检测。该触控结构30还包括多根第一触控信号线341和多根第二触控信号线342。每根第一触控信号线341与沿x方向延伸的第一触控电极线电连接，每根第二触控信号线342与沿y方向延伸的第二触控电极线电连接。为了简化目的，图8的第一触控信号线341和第二触控信号线342各仅仅示出三条，在具体实现时，每个第一触控电极线与一根第一触控信号线341电连接，每个第二触控电极线与一根第二触控信号线342电连接，这样，由每个触控电极32产生的触控信号可以通过第一触控信号线341或第二触控信号线342传输到外部的触控芯片。
示例性地，基材层31为聚酰亚胺(英文：Polyimide；简称：PI)薄膜、聚对苯二甲酸乙二酯(英文：Polyethylene terephthalate；简称：PET)薄膜或环烯烃聚合物(英文：Cyclo Olefin Polymer；简称：COP)薄膜。
触控电极32为氧化铟锡(英文：Indium Tin Oxides；简称ITO)，ITO导电且透明，适宜于制作触控电极。
绝缘层33为SiO X、SiN X、SiN xO y中的一种或多种。
作为示例，图6中示出了第二遮光结构52位于触控结构30内的布置形式。该触控结构30与显示面板10连接时，可以将透明粘接层20粘接在基材层31上，或者也可以将透明粘接层20粘接在绝缘层33上。若透明粘接层20粘接在基材层31上，则基材层31远离绝缘层33的一面即为触控结构30的第一表面30a，若透明粘接层20粘接在绝缘层33上，则基材层31远离绝缘层33的一面即为触控结构30的第二表面30b。对应于图3和图4所示的显示装置，第二遮光结构52位于基材层31远离绝缘层33的一面，或者第二遮光结构52位于绝缘层33上。
可选地，第一遮光结构51的材料为油墨或不透光的光刻胶。第二遮光结构52的材料为油墨或不透光的光刻胶。油墨能通过丝网印刷工艺形成，光刻胶能通过构图工艺形成。丝网印刷工艺和构图工艺均具有较高的精度，有利于制作出尺寸精度高的第一遮光结构51和第二遮光结构52。
可选地，光刻胶中含有黑炭颗粒。在光刻胶中掺入黑炭颗粒能够提高第一 遮光结构51和第二遮光结构52对光线的阻挡作用，减少光线的透射。
可选地，第一遮光结构51的厚度为1μm～5μm，第二遮光结构52的厚度为1μm～5μm。第一遮光结构51的厚度和第二遮光结构52的厚度对显示面板10、触控结构30、透明盖板200的贴合会产生一定的影响，第一遮光结构51和第二遮光结构52的厚度越大，影响也大，但厚度越小，对光线的阻挡作用也越弱，在确保第一遮光结构51和第二遮光结构52对光线有足够的阻挡作用的前提下，应尽量降低第一遮光结构51和第二遮光结构52的厚度。在1μm～5μm的厚度范围内，第一遮光结构51和第二遮光结构52对光线有足够的阻挡作用，且对显示面板10、触控结构30和透明盖板200的贴合产生的影响也小。示例性地，第一遮光结构51和第二遮光结构52的厚度均为2μm。
第一遮光结构51的尺寸和第二遮光结构52的尺寸对两者的遮光效果也有较大的影响，合适尺寸的第一遮光结构51和第二遮光结构52能够进一步避免光线从通孔中射到通孔外，进一步提升显示装置的显示效果。以下对于第一遮光结构51的尺寸和第二遮光结构52的尺寸设置进行详细的说明。
图9是本公开实施例提供的一种显示装置的局部结构示意图，如图9所示，对于第一遮光结构51，第一遮光结构51的内径小于通孔100a的直径，第一遮光结构51的外径大于通孔100a的直径。由于第一遮光结构51的内径比通孔100a的直径小，因此原本会从通孔100a中斜射到通孔100a外的光线会照射到第一遮光结构51上，被第一遮光结构51遮挡。
可选地，第一遮光结构51的内径满足如下关系：
Figure PCTCN2020090607-appb-000008
Figure PCTCN2020090607-appb-000009
其中，D 1为第一遮光结构51的内径，h为第一遮光结构51和第二遮光结构52间的垂直距离，D 0为通孔100a的直径，n为透明粘接层20的折射率，d为透明粘接层20的厚度，a为在通孔100a的径向上，非显示区101与显示区102的边界到通孔100a的最小距离。
可选地，透明粘接层20的折射率为1.45～1.5，作为一种示例，透明粘接层20的折射率为1.47。
由于非显示区101通常呈圆环形，因此非显示区101与显示区102的边界通常为圆形，非显示区101与显示区102的边界到通孔100a的最小距离即非显示区101的环宽。如图9所示，根据几何关系，光线从区域折射进入通孔100a内的最大折射角α满足式(2)，如果以最大折射角α进入通孔100a内的光线能被第一遮光结构51所遮挡，则以更小的折射角进入通孔100a内的光线只会照射到第一遮光结构51上或是孔壁上，不会射出通孔100a，因此第一遮光结构51的内径满足式(1)和式(2)可以确保光线能够被第一遮光结构51所遮挡。
在制作显示装置的过程中，存在一些不可避免的偏差，例如通孔100a的形位公差、透明盖板200和显示面板10的贴合公差、第一遮光结构51的形位公差等，这些偏差会影响第一遮光结构51对光线的遮挡作用，使得部分从区域入射至通孔100a内并射向透明盖板200的光无法被第一遮光结构51遮挡。以图9所示为例，若由于透明盖板200和显示面板10的贴合公差的影响，使第一遮光结构51相对于图示位置向右偏移一段微小的距离，这就会导致图示中的部分光线无法照射到第一遮光结构51而射出通孔100a。为了避免这种问题的产生，第一遮光结构51的内径满足如下关系：
Figure PCTCN2020090607-appb-000010
其中，m 1为通孔100a的形位公差，m 2为透明盖板200和显示面板10的贴合公差，m 3为第一遮光结构51的形位公差。
为了确保从区域入射至通孔100a内并射向透明盖板200的光能够被第一遮光结构51所遮挡，第一遮光结构51的内径需要既满足式(1)，也满足式(3)，即第一遮光结构51的内径满足如下关系：
Figure PCTCN2020090607-appb-000011
若第一遮光结构51的内径满足式(4)，则必然同时满足式(1)和式(3)。
若第一遮光结构51在显示面板10上的正投影有一部分位于显示区102，则第一遮光结构51会对显示区102显示的画面造成遮挡。虽然设计时要求第一遮光结构51在显示面板10上的正投影均位于显示区102外，以避免这种情况，但是在制作过程中的偏差可能导致第一遮光结构51在显示面板10上的正投影有一部分位于显示区102内。仍以图9所示为例，若在贴合透明盖板200和显 示面板10的过程中，由于透明盖板200和显示面板10的贴合公差的影响，使第一遮光结构51相对于图示位置向右偏移一段微小的距离，则可能导致第一遮光结构51在显示面板10上的正投影有一部分进入到显示区102。为了避免这种问题的产生，第一遮光结构51的外径满足如下关系：
Figure PCTCN2020090607-appb-000012
其中，D 2为第一遮光结构51的外径。
由式(5)限定出第一遮光结构51的外径，式(1)和式(3)限定出第一遮光结构51的内径的最大值，由此就确定出了第一遮光结构51的尺寸。
在通孔100a的径向上，第一遮光结构51与显示区102的间距即为
Figure PCTCN2020090607-appb-000013
第一遮光结构51与显示区102的间距可以为0.1mm～0.3mm。
m 1可以不超过50μm，在工艺能够达到的情况下，使公差尽量小，有利于提高对光线的遮挡效果。
对于第二遮光结构52，如图9所示，第二遮光结构52的内径与通孔100a的内径相同。由于第二遮光结构52不可能延伸到通孔100a内，因此为了使第二遮光结构52对光线的遮挡范围最大，第二遮光结构52的内径与通孔100a的内径相同。
若第二遮光结构52在显示面板10上的正投影有一部分位于显示区102内，则第二遮光结构52会对显示区102显示的显示画面造成遮挡，虽然设计时要求第二遮光结构52在显示面板10上的正投影均位于显示区102外，以避免这种情况，但是在制作过程中的偏差也可能导致第二遮光结构52有一部分位于显示区102内。仍以图9所示为例，若在贴合触控结构30和显示面板10的过程中，由于触控结构30和显示面板10的贴合公差的影响，使第二遮光结构52相对于图示位置向右偏移一段微小的距离，则可能导致第二遮光结构52有一部分进入到显示区102。为了避免这种问题的产生，第二遮光结构52的外径满足如下关系：
Figure PCTCN2020090607-appb-000014
其中，D 3为第二遮光结构52的外径，m 4为触控结构30和显示面板10的贴合公差，m 5为第二遮光结构52的形位公差。
在通孔100a的径向上，第二遮光结构52与显示区102的间距即为
Figure PCTCN2020090607-appb-000015
第二遮光结构52与显示区102的间距可以为0.1mm～0.2mm。
可选地，第二遮光结构52在显示面板10上的正投影位于第一遮光结构51在显示面板10上的正投影内。由于第一遮光结构51和第二遮光结构52并不在同一平面上，即使第一遮光结构51和第二遮光结构52设置为相同的颜色，使两者在视觉上尽量融合为一体，观察者在透明盖板200一侧观察显示装置时，也仍然有可能会看出第一遮光结构51和第二遮光结构52之间的界限。通过使第二遮光结构52在显示面板10上的正投影位于第一遮光结构51在显示面板10上的正投影内，就可以利用第一遮光结构51遮挡第二遮光结构52，使观察者不容易察觉出第二遮光结构52的存在，有利于提升显示装置的视觉效果。
可选地，显示面板10为有机发光二极管(英文：Organic Light-Emitting Diode；简称：OLED)显示面板。图10是本公开实施例提供的一种显示面板的结构示意图。如图10所示，显示面板10包括依次层叠的阵列基板11、发光器件12、阻水层13和平坦层14。发光器件12可以是OLED发光器件。阻水层13包括SiO x、SiN x、SiON和Al 2O 3中的一层或多层，阻水层13的厚度为50nm～1000nm，但不仅限于此。阻水层13可以通过PECVD(离子体增强化学气相沉积)、ALD(原子层淀积)或者Sputter(溅射)等工艺制作，但不仅限于此。平坦层14可以是丙烯酸酯类、硅氧烷类、丙烯酸酯类等，但不仅于此。平坦层14可以通过喷墨打印、丝网印刷等工艺制作，但不仅限于此。
图11是本公开实施例提供的一种显示装置的制造方法流程图，该方法用于制造前述的显示装置。如图11所示，该方法包括：
在步骤S11中，提供显示面板、形成有遮光图形的触控结构和形成有第一遮光结构的透明盖板。
在步骤S12中，通过透明粘接层将触控结构粘接至显示面板。
在步骤S13中，形成贯通显示面板、透明粘接层、遮光图形和触控结构的通孔，得到具有第二遮光结构的显示屏。
具有第二遮光结构的显示屏的结构可以参照图3～5所示，显示面板10具有围绕通孔100a的非显示区101和围绕非显示区101的显示区102，第二遮光结构52包括形成通孔100a后遮光图形521的剩余部分，第二遮光结构52围绕通孔100a，第二遮光结构52在显示面板10上的正投影位于非显示区101。
在步骤S14中，将透明盖板设置在触控结构上。
将透明盖板200设置到触控结构30上，使第一遮光结构51围绕通孔100a，第一遮光结构51在显示面板10上的正投影位于非显示区101，第一遮光结构51被配置为对通过通孔100a从第二遮光结构52靠近显示面板10的一侧倾斜入射至透明盖板200的光进行遮挡。
通过透明盖板上的第一遮光结构和触控结构上的第二遮光结构能够对显示面板发出的部分光线进行遮挡，第一遮光结构和第二遮光结构均围绕贯通显示面板、透明粘接层和触控结构的通孔，且第一遮光结构和第二遮光结构在显示面板上的正投影均位于非显示区，显示面板发出的光在向通孔的方向斜射过透明粘接层后，会受到第二遮光结构的遮挡，使大部分光线无法到达通孔中，少部分光线从第二遮光结构靠近显示面板的一侧进入通孔内，并倾斜入射至透明盖板，而这部分光线会受到第一遮光层的遮挡，避免该部分光线射到通孔外，从而避免了该部分光线被观察者观察到，有利于提升显示装置的显示效果。
图12是本公开实施例提供的一种显示装置的制造方法流程图。以下结合图13～图17对本公开提供的显示装置的制造方法进行详细说明。如图12所示，该制造方法包括：
在步骤S21中，提供一透明盖板、偏光片和显示面板。
可选地，透明盖板为盖板玻璃。显示面板为有机发光二极管显示面板。
在步骤S22中，在透明盖板上形成第一遮光结构。
图13是本公开实施例提供的一种透明盖板的结构示意图。如图13所示，在透明盖板200的一面形成有第一遮光结构51。透明盖板200具有相反的两面，在组装显示装置的过程中，第一遮光结构51位于透明盖板200靠近显示面板10的一面。由于在显示装置的使用过程中，透明盖板200通常是可以直接触碰到的结构，因此将第一遮光结构51布置在透明盖板200靠近显示面板10的一面，能够避免在使用过程中造成第一遮光结构51的脱落。
可选地，第一遮光结构51的材料为油墨或不透光的光刻胶。能够采用油墨通过丝网印刷工艺在透明盖板200上形成第一遮光结构51，能够采用光刻胶通过构图工艺在透明盖板200上形成第一遮光结构51。丝网印刷工艺和构图工艺均具有较高的精度，有利于制作出尺寸精度高的第一遮光结构51。
若采用光刻胶制作第一遮光结构51，可以在光刻胶中掺入黑炭颗粒，使形成的第一遮光结构51呈现黑色，提高第一遮光结构51对光线的阻挡作用，减少光线的透射。
第一遮光结构51呈圆环形，第一遮光结构51的内径和外径可以根据前述的式(1)～式(5)确定，此处不再赘述。
在步骤S23中，制作形成有遮光图形的触控结构。
以图6所示的触控结构30为例，该触控结构30包括基材层31、多个触控电极32和绝缘层33，多个触控电极32位于基材层31的一面，绝缘层33覆盖在多个触控电极32上。
示例性地，基材层31为聚酰亚胺薄膜、聚对苯二甲酸乙二酯薄膜或环烯烃聚合物薄膜。
触控电极32为ITO，ITO导电且透明，适宜于制作触控电极。
绝缘层33为SiO X、SiN X、SiN xO y中的一种或多种。
触控结构30至少有如下两种方式制作：
图14是本公开实施例提供的一种触控结构的制作过程示意图。如图14所示，第一种制作触控结构30的方法可以包括：
提供基材层31；
在基材层31的一面形成多个触控电极32；
在多个触控电极32上形成绝缘层33；
在基材层31的另一面和绝缘层33中的至少一个上形成遮光图形521，得到触控结构30。
图14中，以触控电极32位于基材层31的一面，遮光图形521位于基材层31的另一面为例。
触控结构30具有相反的第一表面30a和第二表面30b，这种方法中形成的遮光图形521位于第一表面30a和第二表面30b中的至少一个上。
图15是本公开实施例提供的一种触控结构的制作过程示意图。如图15所示，第二种制作触控结构30的方法可以包括：
提供基材层31；
在基材层31的一面形成多个触控电极32和遮光图形521；
在多个触控电极32和遮光图形521上形成绝缘层33，得到触控结构30。
这种方法中形成的遮光图形521位于第一表面30a和第二表面30b之间，即位于触控结构30内。
遮光图形521用于在后续过程中制作成第二遮光结构52。可选地，采用油墨或不透光的光刻胶形成遮光图形521。遮光图形521的制作方法与第一遮光结构51的制作方法相同，均可以采用丝网印刷工艺或构图工艺制作。丝网印刷工艺和构图工艺均具有较高的精度，有利于制作出尺寸精度高的遮光图形521。
图16是本公开实施例提供的一种触控结构的俯视图。如图16所示，遮光图形521为圆形。尽管遮光图形521为圆形，而第二遮光结构52为圆环形，但是后续制作过程中，还需要进行打孔，通过打孔可以去除遮光图形521的一部分，从而制作出圆环形的第二遮光结构52。这样不需要设计第二遮光结构52的内径就可以确保制作出的第二遮光结构52的内径与通孔100a的直径相同。
遮光图形521的直径即为需要制作的第二遮光结构52的外径，可以根据前述的式(6)确定，此处不再赘述。
在步骤S24中，将触控结构粘接至显示面板。
可选地，可通过透明粘接层20进行粘接，透明粘接层20为底层光学胶。底层光学胶具有较高的透明度，能减少对显示屏100的亮度影响。
在步骤S25中，将偏光片设置在触控结构上。
在步骤S26中，形成通孔。
图17是本公开实施例提供的一种通孔形成过程示意图。如图17所示，通孔100a贯通显示面板10、透明粘接层20、触控结构30和偏光片40。通过形成通孔100a，去除了遮光图形521的一部分，剩余部分呈圆环形，第二遮光结构52即为形成通孔100a后遮光图形521的剩余部分，从而得到具有第二遮光结构52的显示屏100。
在步骤S26中，可以通过激光打孔、冲压打孔的方式形成贯穿显示面板10、透明粘接层20、触控结构30和偏光片40的通孔100a。
在步骤S27中，将透明盖板设置在偏光片上。
可选地，透明盖板200和偏光片40通过顶部光学胶粘接。顶部光学胶具有较高的透明度，能减少对显示面板10的亮度影响。
在设置透明盖板200时，通过调整透明盖板200和显示屏100的相对位置，使第一遮光结构51围绕通孔100a，第一遮光结构51在显示面板10上的正投影 位于非显示区101。
以上所述仅为本公开的可选实施例，并不用以限制本公开，凡在本公开的精神和原则之内，所作的任何修改、等同替换、改进等，均应包含在本公开的保护范围之内。

Claims (17)

  1. 一种显示装置，所述显示装置包括显示屏(100)、透明盖板(200)和第一遮光结构(51)，所述显示屏(100)包括显示面板(10)、透明粘接层(20)、触控结构(30)和第二遮光结构(52)，所述透明粘接层(20)、所述触控结构(30)和所述透明盖板(200)依次叠置于所述显示面板(10)上，
    所述显示屏(100)具有贯通所述显示面板(10)、所述透明粘接层(20)和所述触控结构(30)的通孔(100a)，所述显示面板(10)具有围绕所述通孔(100a)的非显示区(101)和围绕所述非显示区(101)的显示区(102)；
    所述第一遮光结构(51)在所述透明盖板(200)上且围绕所述通孔(100a)，所述第二遮光结构(52)在所述触控结构(30)上且围绕所述通孔(100a)，所述第一遮光结构(51)在所述显示面板(10)上的正投影和所述第二遮光结构(52)在所述显示面板(10)上的正投影均位于所述非显示区(101)，所述第一遮光结构(51)被配置为对通过所述通孔(100a)从所述第二遮光结构(52)靠近所述显示面板(10)的一侧倾斜入射至所述透明盖板(200)的光进行遮挡。
  2. 根据权利要求1所述的显示装置，其中，所述第一遮光结构(51)呈圆环形，所述第一遮光结构(51)的内径小于所述通孔(100a)的直径，所述第一遮光结构(51)的外径大于所述通孔(100a)的直径。
  3. 根据权利要求2所述的显示装置，其中，所述第一遮光结构(51)的内径满足如下关系：
    Figure PCTCN2020090607-appb-100001
    Figure PCTCN2020090607-appb-100002
    其中，D 1为所述第一遮光结构(51)的内径，h为所述第一遮光结构(51)和所述第二遮光结构(52)间的垂直距离，D 0为所述通孔(100a)的直径，n为所述透明粘接层(20)的折射率，d为所述透明粘接层(20)的厚度，a为在所述通孔(100a)的径向上，所述非显示区(101)与所述显示区(102)的边界到所述通孔(100a)的最小距离。
  4. 根据权利要求2所述的显示装置，其中，所述第一遮光结构(51)的内径满足如下关系：
    Figure PCTCN2020090607-appb-100003
    其中，D 1为所述第一遮光结构(51)的内径，D 0为所述通孔(100a)的直径，m 1为所述通孔(100a)的形位公差，m 2为所述透明盖板(200)和所述显示面板(10)的贴合公差，m 3为所述第一遮光结构(51)的形位公差。
  5. 根据权利要求4所述的显示装置，其中，所述第一遮光结构(51)的内径满足如下关系：
    Figure PCTCN2020090607-appb-100004
    Figure PCTCN2020090607-appb-100005
    其中，h为所述第一遮光结构(51)和所述第二遮光结构(52)间的垂直距离，n为所述透明粘接层(20)的折射率，d为所述透明粘接层(20)的厚度，a为在所述通孔(100a)的径向上，所述非显示区(101)与所述显示区(102)的边界到所述通孔(100a)的最小距离差。
  6. 根据权利要求2～5任一项所述的显示装置，其中，所述第一遮光结构(51)的外径满足如下关系：
    Figure PCTCN2020090607-appb-100006
    其中，D 2为所述第一遮光结构(51)的外径，D 0为所述通孔(100a)的直径，a为在所述通孔(100a)的径向上，所述非显示区(101)与所述显示区(102)的边界到所述通孔(100a)的最小距离，m 2为所述透明盖板(200)和所述显示面板(10)的贴合公差，m 3为所述第一遮光结构(51)的形位公差。
  7. 根据权利要求1～6任一项所述的显示装置，其中，所述第二遮光结构(52)呈圆环形，所述第二遮光结构(52)的内径与所述通孔(100a)的内径相同。
  8. 根据权利要求7所述的显示装置，其中，所述第二遮光结构(52)的外径满足如下关系：
    Figure PCTCN2020090607-appb-100007
    其中，D 3为所述第二遮光结构(52)的外径，D 0为所述通孔(100a)的直径，a为在所述通孔(100a)的径向上，所述非显示区(101)与所述显示区(102)的边界到所述通孔(100a)的最小距离，m 4为所述触控结构(30)和所述显示面板(10)的贴合公差，m 5为所述第二遮光结构(52)的形位公差。
  9. 根据权利要求1～8任一项所述的显示装置，其中，所述第二遮光结构(52)在所述显示面板(10)上的正投影位于所述第一遮光结构(51)在所述显示面板(10)上的正投影内。
  10. 根据权利要求1～9任一项所述的显示装置，其中，所述触控结构(30)具有靠近所述显示面板(10)的第一表面(30a)和靠近所述透明盖板(200)的第二表面(30b)，所述第二遮光结构(52)位于以下位置中的至少一个：所述第一表面(30a)、所述第二表面(30b)、或者所述第一表面(30a)和所述第二表面(30b)之间。
  11. 根据权利要求10所述的显示装置，其中，所述触控结构(30)包括基材层(31)、多个触控电极(32)和绝缘层(33)，所述多个触控电极(32)位于所述基材层(31)的一面，所述绝缘层(33)覆盖在所述多个触控电极(32)上，
    所述第二遮光结构(52)位于所述基材层(31)和所述绝缘层(33)中的至少一个上。
  12. 根据权利要求1～11任一项所述的显示装置，其中，所述第一遮光结构(51)的厚度为1μm～5μm，所述第二遮光结构(52)的厚度为1μm～5μm。
  13. 根据权利要求1～12任一项所述的显示装置，其中，所述第一遮光结构(51)的材料为油墨或不透光的光刻胶，所述第二遮光结构(52)的材料为油 墨或不透光的光刻胶。
  14. 根据权利要求13所述的显示装置，其中，所述光刻胶层中含有黑炭颗粒。
  15. 一种显示装置的制造方法，所述方法包括：
    提供显示面板(10)、形成有遮光图形(521)的触控结构(30)和形成有第一遮光结构(51)的透明盖板(200)；
    通过透明粘接层(20)将所述触控结构(30)粘接至所述显示面板(10)；
    形成贯通所述显示面板(10)、所述透明粘接层(20)、所述遮光图形(521)和所述触控结构(30)的通孔(100a)，得到具有第二遮光结构(52)的显示屏(100)，所述显示面板(10)具有围绕所述通孔(100a)的非显示区(101)和围绕所述非显示区(101)的显示区(102)，所述第二遮光结构(52)包括形成所述通孔(100a)后所述遮光图形(521)的剩余部分，所述第二遮光结构(52)围绕所述通孔(100a)，所述第二遮光结构(52)在所述显示面板(10)上的正投影位于所述非显示区(101)；
    将所述透明盖板(200)设置在所述触控结构(30)上，使所述第一遮光结构(51)围绕所述通孔(100a)，所述第一遮光结构(51)在所述显示面板(10)上的正投影位于所述非显示区(101)，所述第一遮光结构(51)被配置为对通过所述通孔(100a)从所述第二遮光结构(52)靠近所述显示面板(10)的一侧倾斜入射至所述透明盖板(200)的光进行遮挡。
  16. 根据权利要求15所述的制造方法，其中，所述方法还包括：
    提供基材层(31)；
    在所述基材层(31)的一面形成多个触控电极(32)；
    在所述多个触控电极(32)上形成绝缘层(33)；
    在所述基材层(31)的另一面和所述绝缘层(33)中的至少一个上形成所述遮光图形(521)，得到所述触控结构(30)。
  17. 根据权利要求15所述的制造方法，其中，所述方法还包括：
    提供基材层(31)；
    在所述基材层(31)的一面形成多个触控电极(32)和所述遮光图形(521)；
    在所述多个触控电极(32)和所述遮光图形(521)上形成绝缘层(33)，得到所述触控结构(30)。
PCT/CN2020/090607 2020-05-15 2020-05-15 显示装置及其制造方法 WO2021227042A1 (zh)

Priority Applications (3)

Application Number Priority Date Filing Date Title
CN202080000753.6A CN113994253B (zh) 2020-05-15 2020-05-15 显示装置及其制造方法
US17/278,697 US11531228B2 (en) 2020-05-15 2020-05-15 Display device and method for manufacturing the same
PCT/CN2020/090607 WO2021227042A1 (zh) 2020-05-15 2020-05-15 显示装置及其制造方法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/CN2020/090607 WO2021227042A1 (zh) 2020-05-15 2020-05-15 显示装置及其制造方法

Publications (1)

Publication Number Publication Date
WO2021227042A1 true WO2021227042A1 (zh) 2021-11-18

Family

ID=78526119

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/090607 WO2021227042A1 (zh) 2020-05-15 2020-05-15 显示装置及其制造方法

Country Status (3)

Country Link
US (1) US11531228B2 (zh)
CN (1) CN113994253B (zh)
WO (1) WO2021227042A1 (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023092686A1 (zh) * 2021-11-24 2023-06-01 武汉华星光电半导体显示技术有限公司 显示面板和显示装置

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112002223A (zh) * 2020-08-11 2020-11-27 武汉华星光电半导体显示技术有限公司 显示盖板及其制备方法、显示装置
CN112416164B (zh) * 2020-10-30 2022-05-17 安徽鸿程光电有限公司 触控显示面板的贴合方法、触控显示面板及电子设备
CN114639310B (zh) * 2022-03-11 2024-02-20 武汉华星光电半导体显示技术有限公司 显示模组及移动终端
CN114661185B (zh) * 2022-03-22 2023-08-15 业成科技（成都）有限公司 触控模组和智能装置

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108681131A (zh) * 2018-07-27 2018-10-19 厦门天马微电子有限公司 显示装置
CN109100892A (zh) * 2018-08-27 2018-12-28 厦门天马微电子有限公司 一种液晶显示面板及显示装置
CN110138935A (zh) * 2019-05-05 2019-08-16 Oppo广东移动通信有限公司 显示组件及终端设备
US10534221B1 (en) * 2018-12-11 2020-01-14 Xiamen Tianma Micro-Electronics Co., Ltd. Display module and display device
CN110687710A (zh) * 2019-09-24 2020-01-14 武汉华星光电技术有限公司 显示装置
CN111081751A (zh) * 2020-01-02 2020-04-28 京东方科技集团股份有限公司 一种显示装置及其制作方法

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108255349B (zh) * 2018-01-31 2021-10-01 京东方科技集团股份有限公司 显示基板和显示装置
JP2019133097A (ja) * 2018-02-02 2019-08-08 シャープ株式会社 画像表示装置
CN110120991A (zh) * 2018-02-05 2019-08-13 广东欧珀移动通信有限公司 终端显示屏组件及移动终端
CN108984022B (zh) * 2018-06-20 2022-03-01 京东方科技集团股份有限公司 触控面板及显示模组
CN110289291B (zh) * 2019-06-25 2021-07-09 武汉天马微电子有限公司 显示面板及其制作方法和显示装置
KR20210024292A (ko) * 2019-08-21 2021-03-05 삼성디스플레이 주식회사 표시 장치
CN110853502B (zh) * 2019-11-29 2021-12-03 武汉华星光电技术有限公司 一种背光模组及显示装置

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108681131A (zh) * 2018-07-27 2018-10-19 厦门天马微电子有限公司 显示装置
CN109100892A (zh) * 2018-08-27 2018-12-28 厦门天马微电子有限公司 一种液晶显示面板及显示装置
US10534221B1 (en) * 2018-12-11 2020-01-14 Xiamen Tianma Micro-Electronics Co., Ltd. Display module and display device
CN110138935A (zh) * 2019-05-05 2019-08-16 Oppo广东移动通信有限公司 显示组件及终端设备
CN110687710A (zh) * 2019-09-24 2020-01-14 武汉华星光电技术有限公司 显示装置
CN111081751A (zh) * 2020-01-02 2020-04-28 京东方科技集团股份有限公司 一种显示装置及其制作方法

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2023092686A1 (zh) * 2021-11-24 2023-06-01 武汉华星光电半导体显示技术有限公司 显示面板和显示装置

Also Published As

Publication number Publication date
US11531228B2 (en) 2022-12-20
CN113994253B (zh) 2023-10-27
US20220113584A1 (en) 2022-04-14
CN113994253A (zh) 2022-01-28

Similar Documents

Publication Publication Date Title
WO2021227042A1 (zh) 显示装置及其制造方法
CN110750020B (zh) 显示模组和显示装置
TWI651658B (zh) 顯示幕、顯示裝置及行動終端
WO2018145461A1 (zh) 显示装置
US8917362B2 (en) Touch-sensitive display device
KR101552994B1 (ko) 유기 발광 표시 장치 및 이의 제조 방법
WO2018153065A1 (zh) 一种显示装置
US8134527B2 (en) Touch sensing display panel, touch sensing color filter and fabricating method thereof
US8896576B2 (en) Touch panel, liquid crystal panel, liquid crystal display device, and touch panel-integrated liquid crystal display device
WO2019137002A1 (zh) 显示面板和显示装置
US10146381B2 (en) Touch sensing structure and applications thereof
JP2018097871A (ja) 光学式イメージ認識センサー内蔵型平面表示装置
KR20130017745A (ko) 터치 스크린 일체형 표시 장치
WO2016150133A1 (zh) 触控基板和显示装置
KR20140095278A (ko) 터치 스크린 패널
JP2008293114A (ja) 照明付タッチパネル及び該タッチパネルを備えた表示装置
JP2017220159A (ja) 表示装置及び検出装置
TW201346387A (zh) 觸控面板
WO2021143036A1 (zh) 指纹感测模块
JP6268830B2 (ja) カラーフィルタ及びタッチパネル機能付き有機ｅｌ表示装置
US20180181250A1 (en) Display device and manufacturing method thereof
CN110674776B (zh) 一种显示面板和显示装置
JP5813598B2 (ja) タッチパネルセンサ基板およびタッチパネルセンサ基板の製造方法
US20220221954A1 (en) Liquid crystal display device
JPWO2013047572A1 (ja) 入力装置、表示装置、および電子機器

Legal Events

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

Ref document number: 20936056

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: 20936056

Country of ref document: EP

Kind code of ref document: A1

122 Ep: pct application non-entry in european phase

Ref document number: 20936056

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 30.06.2023)

122 Ep: pct application non-entry in european phase

Ref document number: 20936056

Country of ref document: EP

Kind code of ref document: A1