WO2022032701A1 - 显示盖板及其制备方法、显示装置 - Google Patents

显示盖板及其制备方法、显示装置 Download PDF

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Publication number
WO2022032701A1
WO2022032701A1 PCT/CN2020/110020 CN2020110020W WO2022032701A1 WO 2022032701 A1 WO2022032701 A1 WO 2022032701A1 CN 2020110020 W CN2020110020 W CN 2020110020W WO 2022032701 A1 WO2022032701 A1 WO 2022032701A1
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WO
WIPO (PCT)
Prior art keywords
light
substrate
display cover
cover plate
layer
Prior art date
Application number
PCT/CN2020/110020
Other languages
English (en)
French (fr)
Inventor
张允题
Original Assignee
武汉华星光电半导体显示技术有限公司
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 武汉华星光电半导体显示技术有限公司 filed Critical 武汉华星光电半导体显示技术有限公司
Priority to US17/251,777 priority Critical patent/US20220236605A1/en
Publication of WO2022032701A1 publication Critical patent/WO2022032701A1/zh

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • G09F9/301—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements flexible foldable or roll-able electronic displays, e.g. thin LCD, OLED
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026—Details of the structure or mounting of specific components
    • H04M1/0266—Details of the structure or mounting of specific components for a display module assembly
    • H04M1/0268—Details of the structure or mounting of specific components for a display module assembly including a flexible display panel
    • 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
    • G06—COMPUTING; CALCULATING OR COUNTING
    • G06F—ELECTRIC DIGITAL DATA PROCESSING
    • G06F1/00—Details not covered by groups G06F3/00 - G06F13/00 and G06F21/00
    • G06F1/16—Constructional details or arrangements
    • G06F1/1613—Constructional details or arrangements for portable computers
    • G06F1/1633—Constructional details or arrangements of portable computers not specific to the type of enclosures covered by groups G06F1/1615 - G06F1/1626
    • G06F1/1656—Details related to functional adaptations of the enclosure, e.g. to provide protection against EMI, shock, water, or to host detachable peripherals like a mouse or removable expansions units like PCMCIA cards, or to provide access to internal components for maintenance or to removable storage supports like CDs or DVDs, or to mechanically mount accessories
    • 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
    • G02F1/133325—Assembling processes
    • 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
    • G02F2202/00—Materials and properties
    • G02F2202/28—Adhesive materials or arrangements
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04M—TELEPHONIC COMMUNICATION
    • H04M1/00—Substation equipment, e.g. for use by subscribers
    • H04M1/02—Constructional features of telephone sets
    • H04M1/0202—Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/0279—Improving the user comfort or ergonomics
    • H04M1/0283—Improving the user comfort or ergonomics for providing a decorative aspect, e.g. customization of casings, exchangeable faceplate

Definitions

  • the present application relates to the field of display technology, and in particular, to a display cover plate, a preparation method thereof, and a display device.
  • the outermost flexible and bendable cover window that protects the display panel, which requires both good flexibility, bendability, and good wear resistance, hardness.
  • the display panel In areas other than the active area, the display panel will have a non-display area such as metal traces, that is, a non-viewable area. Within the visible area, the flexible cover is required to have high transmittance. Area), flexible cover plates will have coating ink designs based on shading considerations. At present, coating inks mainly include silk screen printing, pad printing, exposure and development.
  • the flexible and bendable cover plate is coated with ink on the side close to the display panel, and then a layer of optical glue is coated on the ink.
  • the ink is applied after the flexible and bendable cover plate is made, and the ink has a certain thickness, there will be a step, which is the ink break.
  • the existence of ink breaks will cause the risk of air bubbles when the optical glue is attached to the flexible and bendable cover, which will affect the appearance of the product and reduce the yield.
  • the purpose of the present application is to provide a display cover plate, a preparation method thereof, and a display device, so as to solve the problem in the prior art that there is a risk of air bubbles when the optical glue is attached to the flexible flexible cover plate due to the existence of ink break, thereby improving the display The production yield of the cover plate and the display effect of the display device.
  • the present application provides a display cover, which is characterized by comprising: a substrate, the substrate includes a visible area and a non-visual area, and the non-visual area is provided with at least one notch; a light shielding layer, the light-shielding layer is disposed in the notch of the non-visible area; and, an optical adhesive layer, the optical adhesive layer covers the light-shielding layer and the visible area of the substrate; wherein, the The thickness of the light shielding layer is the same as the depth of the notch, and the thickness of the light shielding layer is smaller than the thickness of the optical adhesive layer.
  • the substrate further includes a hardened layer, and the hardened layer is disposed on a side of the substrate away from the light shielding layer and covers the substrate.
  • the material of the light shielding layer is light shielding ink.
  • the refractive index of the substrate is less than the refractive index of the optical glue layer.
  • the material of the light shielding layer is light shielding ink.
  • the light-shielding ink is a black light-shielding ink.
  • the shape of the longitudinal section of the slot can be one of triangular, semicircular, rectangular, trapezoidal or other regular shapes.
  • the present application also provides a display cover, comprising: a substrate, the substrate includes a visible area and a non-visible area, and at least one notch is arranged in the non-visible area; a light-shielding layer, the light-shielding layer is disposed on the In the notch of the non-visible area; an optical adhesive layer, the optical adhesive layer covers the light shielding layer and the visible area of the substrate.
  • the substrate further includes a hardened layer, and the hardened layer is disposed on a side of the substrate away from the light shielding layer and covers the substrate.
  • the thickness of the light shielding layer is the same as the depth of the notch.
  • the thickness of the light shielding layer is less than the thickness of the optical adhesive layer.
  • the refractive index of the substrate is less than the refractive index of the optical glue layer.
  • the material of the light shielding layer is light shielding ink.
  • the light-shielding ink is a black light-shielding ink.
  • the shape of the longitudinal section of the slot can be one of triangular, semicircular, rectangular, trapezoidal or other regular shapes.
  • the material of the optical adhesive layer is at least one of acrylic adhesive, silicone, rubber, epoxy resin and semi-cured liquid optical adhesive.
  • the present application also provides a method for preparing the above-mentioned display cover plate, which includes the steps of: providing a substrate, and opening at least one notch on one side of the substrate; filling the notch with a light-shielding material to form a light-shielding layer; and attaching an optical adhesive on the side of the substrate on which the light shielding layer is formed to form an optical adhesive layer.
  • the manufacturing method of the display cover plate further includes the step of: performing a whole surface hardening treatment on the side of the substrate away from the notch to form a hardened layer.
  • the present application further provides a display device including the above-mentioned display cover plate and display panel, wherein the display cover plate is disposed on the light emitting side of the display panel.
  • the display device further includes a polarizer disposed between the display panel and the display cover.
  • the present application discloses a display cover plate, a preparation method thereof, and a display device.
  • the display cover plate includes: a substrate, the substrate includes a visible area and a non-visible area, the non-visible area is provided with at least one notch; a light-shielding layer, the light-shielding layer is arranged on the invisible area In the notch of the area; an optical adhesive layer, the optical adhesive layer covers the light shielding layer and the visible area of the substrate. Disposing the light-shielding layer in the slot can overcome the ink step difference caused by coating the light-shielding layer in the prior art, so that the optical adhesive layer is completely attached to the substrate, thereby avoiding the risk of generating air bubbles and improving the display cover. In addition, since it is not necessary to overcome the influence of ink breakage, the thickness of the optical adhesive layer can be reduced, thereby reducing the thickness of the display device and improving the appearance of the product.
  • the side of the substrate away from the notch is also subjected to full surface hardening treatment to form a hardened layer.
  • the hardened layer can ensure that the display cover plate has good flexibility and bendability, and at the same time has good wear resistance and hardness, thereby improving the quality of the product.
  • FIG. 1 is a schematic structural diagram of a display cover plate provided by an embodiment of the present application.
  • FIG. 2 is a schematic diagram of a manufacturing process of a display cover plate according to an embodiment of the present application.
  • 3A to 3D are schematic structural diagrams of various parts of a display cover plate provided by an embodiment of the present application.
  • FIG. 4 is a schematic structural diagram of a display device according to an embodiment of the present application.
  • first and second are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as “first”, “second” may expressly or implicitly include one or more of said features. In the description of the present application, “plurality” means two or more, unless otherwise expressly and specifically defined.
  • the terms “installed”, “connected” and “connected” should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be a mechanical connection, an electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation.
  • installed should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be a mechanical connection, an electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation.
  • a first feature "on” or “under” a second feature may include direct contact between the first and second features, or may include the first and second features Not directly but through additional features between them.
  • the first feature being “above”, “over” and “above” the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature.
  • the first feature is “below”, “below” and “below” the second feature includes the first feature being directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.
  • FIG. 1 is a schematic structural diagram of a display cover 10 according to an embodiment of the present application.
  • the present application provides a display cover 10, comprising: a substrate 100, the substrate 100 includes a visible area 110 and a non-visual area 120, the non-visual area 120 is provided with at least one slot 121; a light shielding layer 200 , the light shielding layer 200 is disposed in the notch 121 of the non-visible area 120 ; an optical adhesive layer 300 covers the light shielding layer 200 and the visible area of the substrate 100 110.
  • the substrate 100 further includes a hardening layer 130 .
  • the hardening layer 130 is disposed on the side of the substrate 100 away from the light shielding layer 200 and covers the substrate 100 .
  • the substrate 100 is a common substrate in the field, which may be a glass substrate, a polyimide substrate or a film substrate.
  • the shape of the longitudinal section of the notch 121 can be one of a triangle, a semicircle, a rectangle, a trapezoid or other regular shapes. Those skilled in the art can understand that the shape of the longitudinal section of the notch 121 is not limited to FIG. 1 . rectangle shown.
  • the material of the light-shielding layer 200 is light-shielding ink, preferably, the light-shielding ink is black light-shielding ink, and the material thereof is conventional material in the field, which will not be repeated in this application.
  • the material of the optical adhesive layer 300 is at least one of acrylic adhesive, organic silica gel, rubber, epoxy resin and semi-cured liquid optical adhesive.
  • the refractive index of the selected optical adhesive layer 300 is not less than the refractive index of the substrate 100 , so that the optical adhesive layer 300 can be avoided.
  • the interface between the substrate 100 and the substrate 100 is refracted, resulting in optical property problems such as increase in reflectivity and decrease in transmittance of the display cover 10 . Therefore, the optical display effect of the display cover 10 can be improved.
  • the The refractive index is set to be no greater than the refractive index of the surface of the display cover 10 in contact with the optical adhesive layer 300 .
  • the surfaces of the substrate 100 in contact with the optical adhesive layer 300 may be different.
  • the depth of the notch 121 (the depth of the notch 121 is the vertical height of the step formed by the notch 121 on the substrate 100 ) is smaller than the thickness of the substrate (the substrate 100 The thickness is the vertical distance between the side of the substrate 100 close to the optical adhesive layer 300 and the side of the substrate 100 away from the optical adhesive layer 300 ).
  • the notch 121 cannot penetrate the substrate 100, the thickness of the substrate 100 is 4-5 times that of the notch 121, and preferably, the thickness of the substrate 100 is 60um ⁇ 100um, the depth of the notch 121 is 15um ⁇ 25um, for example, the thickness of the substrate 100 is 80um, and the depth of the notch 121 is 20um, but not limited thereto.
  • the thickness of the light-shielding layer 200 (the thickness of the light-shielding layer 200 is the vertical distance between the side of the light-shielding layer 200 close to the substrate 100 and the side of the light-shielding layer 200 away from the substrate 100 ) distance) is the same as the depth of said notch 121.
  • the surface of the light shielding layer 200 is level with the surface of the substrate 100, and the surface of the light shielding layer 200 and the surface of the substrate 100 are both the same as the optical adhesive layer.
  • the depth of the slot 121 is 15um ⁇ 25um, then the thickness of the light shielding layer 200 is 15um ⁇ 25um.
  • the depth of the slot 121 is 18um, the thickness of the light shielding layer 200 corresponds to is 18um; the depth of the notch 121 is 22um, the thickness of the light shielding layer 200 is correspondingly 22um, but not limited to this.
  • the thickness of the light shielding layer 200 is smaller than the thickness of the optical adhesive layer 300 (the thickness of the optical adhesive layer 300 is the thickness of the optical adhesive layer 300 close to the substrate 100 and the optical adhesive layer 300 ). the vertical distance of the side of the layer 300 away from the substrate 100).
  • the thickness of the optical adhesive layer 300 originally used is 3-4 times the thickness of the ink layer. Since the present application can overcome the ink gap caused by coating the light-shielding layer 200 in the prior art, it can be reduced accordingly.
  • the thickness of the optical adhesive layer 300 preferably, the thickness of the optical adhesive layer 300 in the present application is 1 to 3 times that of the light shielding layer 200 .
  • the thickness of the optical adhesive layer 300 is correspondingly 15um ⁇ 75um; for example: the thickness of the light-shielding layer is 16um, and the thickness of the optical adhesive layer 300 is 40um; The thickness of the light-shielding layer is 24 ⁇ m, and the thickness of the optical adhesive layer 300 is 50 ⁇ m, but not limited thereto.
  • the width of the slot 121 (the width of the slot 121 is the vertical distance between the two sides of the slot 121 ) is smaller than the width of the substrate 100 (the width of the substrate 100 is the the vertical distance between the two sides of the substrate 100).
  • the notch 121 fills the invisible area 120
  • the light shielding layer 200 fills the notch 121 , that is, the light shielding layer 200 covers the entire invisible area 120 .
  • the non-visible area 120 there are usually metal traces and other devices, but the metal traces and other devices are usually not evenly distributed, and the metal traces and other devices
  • the original visual colors are not the same, and covering the entire non-visible area 120 with the light shielding layer 200 can enhance the visual uniformity and improve the display effect of the display device.
  • FIG. 2 is a schematic diagram of a manufacturing process of a display cover 10 provided by an embodiment of the application
  • FIGS. 3A to 3D are a display cover provided by an embodiment of the application 10 Schematic diagram of each part of the structure.
  • the present application also provides a preparation method of the above-mentioned display cover plate 10, comprising the following steps:
  • step S1 providing a substrate 100 and opening at least one slot 121 on one side of the substrate 100 ;
  • step S2 filling the notch 121 with light-shielding ink to form a light-shielding layer 200 ;
  • step S3 attaching a layer of optical adhesive on the side of the substrate 100 where the light shielding layer 200 is formed to form an optical adhesive layer 300 .
  • the above-mentioned manufacturing method of the display cover 10 further includes step S4 : performing an entire surface hardening process on the side of the substrate 100 away from the notch 121 to form a hardened layer 130 .
  • the whole surface hardening treatment process is a conventional method in the art, and will not be repeated in this application.
  • FIG. 4 is a schematic structural diagram of a display device 1 according to an embodiment of the present application.
  • the present application further provides the above-mentioned display device 1 , including the above-mentioned display cover plate 10 , a polarizer 20 and a display panel 30 .
  • the polarizers are all common structures in the art, and are not repeated in this application.
  • the above-mentioned display device 1 provided by the embodiment of the present application does not limit the type of the display panel 30 , and the display panel 30 may specifically be a liquid crystal display panel, an organic electroluminescence display panel, a cathode ray tube display panel, and a plasma display panel. , any of electronic paper or electroluminescent display panels.
  • the above-mentioned display device 1 provided in the embodiment of the present invention may be any product or component with a display function, such as a mobile phone, a tablet computer, a TV, a monitor, a notebook computer, a digital photo frame, and a navigator.
  • the present application discloses a display cover plate 10 , a preparation method thereof, and a display device 1 .
  • the display cover 10 includes: a substrate 100, the substrate 100 includes a visible area 110 and a non-visual area 120, the non-visible area 120 is provided with at least one slot 121; a light-shielding layer 200, the light-shielding layer 200 The layer 200 is disposed in the notch 121 of the non-visible area 120 ; an optical adhesive layer 300 covers the light shielding layer 200 and the visible area 110 of the substrate 100 .
  • Disposing the light-shielding layer 200 in the slot 121 can overcome the ink step difference caused by coating the light-shielding layer 200 in the prior art, so that the optical adhesive layer 300 and the substrate 100 are completely adhered, thereby avoiding the risk of generating air bubbles , to improve the production yield of the display cover 10 ; and, since it is not necessary to overcome the influence of ink breakage, the thickness of the optical adhesive layer 300 can be reduced, thereby reducing the thickness of the display device 1 and improving the appearance of the product.
  • the side of the substrate 100 away from the notch 121 is also subjected to full surface hardening treatment to form a hardened layer 130 .
  • the hardened layer 130 can ensure that the display cover 10 has good flexibility and bendability, as well as good wear resistance and hardness, thereby improving product quality.
  • the display cover 10, the preparation method thereof, and the display device 1 provided by the embodiments of the present application have been described in detail above.
  • the principles and implementations of the present application are described with specific examples.
  • the descriptions of the above embodiments are only used for To help understand the technical solutions of the present application and their core ideas; those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some of the technical features; and these Modifications or substitutions do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

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  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Computer Hardware Design (AREA)
  • Chemical & Material Sciences (AREA)
  • Mathematical Physics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Optics & Photonics (AREA)
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  • Human Computer Interaction (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

本申请公开了一种显示盖板及其制备方法、显示装置。所述显示盖板包括：一基板，所述基板包括可视区与非可视区，所述非可视区设置至少一槽口；一遮光层，所述遮光层设置于所述非可视区的所述槽口内；一光学胶层，所述光学胶层覆盖所述遮光层以及所述基板的可视区。在所述槽口内设置遮光层可以克服现有技术中涂布遮光层所产生的油墨段差，使所述光学胶层与所述基板完全贴合，从而规避产生气泡的风险，提高显示盖板的生产良率；并且，由于不需要克服油墨断差影响，可降低所述光学胶层的厚度，从而降低所述显示装置的厚度，提升产品外观。

Description

显示盖板及其制备方法、显示装置 技术领域
本申请涉及显示技术领域，尤其涉及显示盖板及其制备方法、显示装置。
 背景技术
智能手机终端发展至今形态千变万化，出现了极致边框、瀑布屏、屏下摄像头、可折叠等形态。其中，可折叠手机因为结合了平板及手机的特点，具有非常广阔的市场前景。
可折叠手机关键技术之一为最外层保护显示面板的柔性可弯折盖板（cover window），要求其既要有良好的柔韧性、可弯折性，又要有良好的耐磨性、硬度。在显示区（active area）以外区域，显示面板会有金属走线等不显示区域，也即非可视区。在可视区以内，要求柔性盖板高透过率，在可视区（visible area）以外，柔性盖板基于遮光考量会有涂布油墨设计，目前涂布油墨主要有丝印、移印、曝光显影等方式。柔性可弯折盖板靠近显示面板侧会涂布油墨，然后在油墨上涂布一层光学胶。
然而，由于油墨为柔性可弯折盖板制作完成之后涂布的，且油墨有一定的厚度，会存在一个台阶，即为油墨断差。油墨断差的存在会使得光学胶与柔性可弯折盖板贴合时存在气泡风险，这会影响产品外观，降低良率。
因此，现有技术存在缺陷，急需改进。
 技术问题
本申请的目的在于提供显示盖板及其制备方法、显示装置，以解决现有技术中油墨断差的存在使得光学胶与柔性可弯折盖板贴合时存在气泡风险的问题，从而提高显示盖板的生产良率以及显示装置的显示效果。
 技术解决方案
为了解决上述问题，本申请提供一种显示盖板，其特征在于，包括：一基板，所述基板包括可视区与非可视区，所述非可视区设置至少一槽口；一遮光层，所述遮光层设置于所述非可视区的所述槽口内；以及，一光学胶层，所述光学胶层覆盖所述遮光层以及所述基板的可视区；其中，所述遮光层的厚度与所述槽口的深度相同，并且所述遮光层的厚度小于所述光学胶层的厚度。
在一些实施例中，所述基板还包括一硬化层，所述硬化层设置于所述基板远离所述遮光层的一侧，并且覆盖所述基板。
在一些实施例中，所述遮光层的材料为遮光油墨。
在一些实施例中，所述基板的折射率小于所述光学胶层的折射率。
在一些实施例中，所述遮光层的材料为遮光油墨。
在一些实施例中，所述遮光油墨为黑色遮光油墨。
在一些实施例中，所述槽口的纵向切面形状可以三角形，半圆形、矩形、梯形或其他规则形状中的一种。
本申请还提供一种显示盖板，包括：一基板，所述基板包括可视区与非可视区，所述非可视区设置至少一槽口；一遮光层，所述遮光层设置于所述非可视区的所述槽口内；一光学胶层，所述光学胶层覆盖所述遮光层以及所述基板的可视区。
在一些实施例中，所述基板还包括一硬化层，所述硬化层设置于所述基板远离所述遮光层的一侧，并且覆盖所述基板。
在一些实施例中，所述遮光层的厚度与所述槽口的深度相同。
在一些实施例中，所述遮光层的厚度小于所述光学胶层的厚度。
在一些实施例中，所述基板的折射率小于所述光学胶层的折射率。
在一些实施例中，所述遮光层的材料为遮光油墨。
在一些实施例中，所述遮光油墨为黑色遮光油墨。
在一些实施例中，所述槽口的纵向切面形状可以三角形，半圆形、矩形、梯形或其他规则形状中的一种。
在一些实施例中，所述光学胶层的材料为亚克力胶材、有机硅胶、橡胶、环氧型树脂以及半固化的液态光学胶中的至少一种。
本申请还提供一种上述显示盖板的制备方法，包括步骤：提供一基板，并在所述基板的一侧开设至少一槽口；在所述槽口内填充遮光材料，以形成一遮光层；以及在所述基板形成有所述遮光层的一侧贴合光学胶，形成一光学胶层。
在一些实施例中，所述的显示盖板的制备方法还包括步骤：对所述基板背离所述槽口的一侧进行整面硬化处理，形成一硬化层。
本申请还提供一种显示装置，包括上述的显示盖板及显示面板，其中，所述显示盖板设置于所述显示面板的出光侧。
在一些实施例中，所述显示装置还包括设置于所述显示面板与所述显示盖板之间的偏光片。
 有益效果
本申请公开了一种显示盖板及其制备方法、显示装置。所述显示盖板包括：一基板，所述基板包括可视区与非可视区，所述非可视区设置至少一槽口；一遮光层，所述遮光层设置于所述非可视区的所述槽口内；一光学胶层，所述光学胶层覆盖所述遮光层以及所述基板的可视区。在所述槽口内设置遮光层可以克服现有技术中涂布遮光层所产生的油墨段差，使所述光学胶层与所述基板完全贴合，从而规避产生气泡的风险，提高显示盖板的生产良率；并且，由于不需要克服油墨断差影响，可降低所述光学胶层的厚度，从而降低所述显示装置的厚度，提升产品外观。
并且，所述基板背离所述槽口的一侧还进行了整面硬化处理，形成一硬化层。所述硬化层可以保证显示盖板具有良好的柔韧性以及可弯折性，同时又具有良好的耐磨性以及硬度，提升产品的品质。
 附图说明
下面结合附图，通过对本申请的具体实施方式详细描述，将使本申请的技术方案及其它有益效果显而易见。
图1为本申请实施例所提供的一种显示盖板的结构示意图。
图2为本申请实施例所提供的一种显示盖板的制备流程示意图。
图3A至图3D为本申请实施例所提供的一种显示盖板的各部分结构示意图。
图4为本申请实施例所提供的一种显示装置的结构示意图。
 本发明的实施方式
下面将结合本申请实施例中的附图，对本申请实施例中的技术方案进行清楚、完整地描述。显然，所描述的实施例仅仅是本申请一部分实施例，而不是全部的实施例。基于本申请中的实施例，本领域技术人员在没有作出创造性劳动前提下所获得的所有其他实施例，都属于本申请保护的范围。
在本申请的描述中，需要理解的是，术语“中心”、“纵向”、“横向”、“长度”、“宽度”、“厚度”、“上”、“下”、“前”、“后”、“左”、“右”、“竖直”、“水平”、“顶”、“底”、“内”、“外”、“顺时针”、“逆时针”等指示的方位或位置关系为基于附图所示的方位或位置关系，仅是为了便于描述本申请和简化描述，而不是指示或暗示所指的装置或元件必须具有特定的方位、以特定的方位构造和操作，因此不能理解为对本申请的限制。此外，术语“第一”、“第二”仅用于描述目的，而不能理解为指示或暗示相对重要性或者隐含指明所指示的技术特征的数量。由此，限定有“第一”、“第二”的特征可以明示或者隐含地包括一个或者更多个所述特征。在本申请的描述中，“多个”的含义是两个或两个以上，除非另有明确具体的限定。
在本申请的描述中，需要说明的是，除非另有明确的规定和限定，术语“安装”、“相连”、“连接”应做广义理解，例如，可以是固定连接，也可以是可拆卸连接，或一体地连接；可以是机械连接，也可以是电连接或可以相互通讯；可以是直接相连，也可以通过中间媒介间接相连，可以是两个元件内部的连通或两个元件的相互作用关系。对于本领域的普通技术人员而言，可以根据具体情况理解上述术语在本申请中的具体含义。
在本申请中，除非另有明确的规定和限定，第一特征在第二特征之“上”或之“下”可以包括第一和第二特征直接接触，也可以包括第一和第二特征不是直接接触而是通过它们之间的另外的特征接触。而且，第一特征在第二特征“之上”、“上方”和“上面”包括第一特征在第二特征正上方和斜上方，或仅仅表示第一特征水平高度高于第二特征。第一特征在第二特征“之下”、“下方”和“下面”包括第一特征在第二特征正下方和斜下方，或仅仅表示第一特征水平高度小于第二特征。
下文的公开提供了许多不同的实施方式或例子用来实现本申请的不同结构。为了简化本申请的公开，下文中对特定例子的部件和设置进行描述。当然，它们仅仅为示例，并且目的不在于限制本申请。此外，本申请可以在不同例子中重复参考数字和/或参考字母，这种重复是为了简化和清楚的目的，其本身不指示所讨论各种实施方式和/或设置之间的关系。此外，本申请提供了的各种特定的工艺和材料的例子，但是本领域普通技术人员可以意识到其他工艺的应用和/或其他材料的使用。
具体的，请参阅图1，图1为本申请实施例所提供的一种显示盖板10的结构示意图。本申请提供一种显示盖板10，包括：一基板100，所述基板100包括可视区110与非可视区120，所述非可视区120设置至少一槽口121；一遮光层200，所述遮光层200设置于所述非可视区120的所述槽口121内；一光学胶层300，所述光学胶层300覆盖所述遮光层200以及所述基板100的可视区110。
所述基板100还包括一硬化层130，所述硬化层130设置于所述基板100远离所述遮光层200的一侧，并且覆盖所述基板100。
在本申请中，所述基板100为本领域常见的一基板，可以是一玻璃基板、一聚酰亚胺基板或薄膜基板(film基板)。所述槽口121的纵向切面形状可以三角形，半圆形、矩形、梯形或其他规则形状中的一种，本领域技术人员可以理解的是，所述槽口121的纵向切面形状不仅限于图1所示的矩形。所述遮光层200的材料为遮光油墨，优选地，所述遮光油墨为黑色遮光油墨，其材料为本领域常规材料，本申请中不再赘述。所述光学胶层300的材料为亚克力胶材、有机硅胶、橡胶、环氧型树脂以及半固化的液态光学胶中的至少一种。
在本申请中，由于在所述基板100上涂布有所述光学胶层300，选用的光学胶层300的折射率不小于所述基板100的折射率，可以避免在所述光学胶层300和所述基板100之间的界面产生折射，而造成显示盖板10的反射率升高和透过率下降等光学特性问题，因此可以提高显示盖板10的光学显示效果。
进一步地，在本申请实施例提供的上述显示盖板中，为了防止所述光学胶层300与所述基板100的接触面之间产生界面折射，在具体实施时，可以将所述基板100的折射率设置为不大于显示盖板10中与所述光学胶层300相接触的表面的折射率。具体地，根据显示盖板10的类型，所述基板100与所述光学胶层300相接触的表面会不同。
在本申请中，所述槽口121的深度（所述槽口121的深度为所述槽口121在所述基板100上形成的台阶的垂直高度）小于所述基板的厚度（所述基板100的厚度为所述基板100靠近所述光学胶层300的一侧与所述基板100远离所述光学胶层300的一侧的垂直距离）。本领域技术人员可以理解的是，所述槽口121不能贯穿所述基板100，所述基板100的厚度为所述槽口121的4~5倍，优选地，所述基板100的厚度为60um~100um，则所述槽口121的深度为15um~25um，例如：所述基板100的厚度为80um，所述槽口121的深度为20um，但不仅限于此。
在本申请中，所述遮光层200的厚度（所述遮光层200的厚度为所述遮光层200靠近所述基板100的一侧与所述遮光层200远离所述基板100的一侧的垂直距离）与所述槽口121的深度相同。本领域技术人员可以理解的是，所述遮光层200的表面与所述基板100的表面水平，此处所述的遮光层200的表面与所述基板100的表面均是与所述光学胶层300相接触的表面，而所述遮光层200的表面与所述基板100的表面水平，可以克服现有技术中涂布遮光层200所产生的油墨段差，使所述光学胶层300与所述基板100完全贴合，从而规避产生气泡的风险。优选地，所述槽口121的深度为15um~25um，则所述遮光层200的厚度对应为15um~25um，例如：所述槽口121的深度为18um，则所述遮光层200的厚度对应为18um；所述槽口121的深度为22um，则所述遮光层200的厚度对应为22um，但不仅限于此。
在本申请中，所述遮光层200的厚度小于所述光学胶层300的厚度（所述光学胶层300的厚度为所述光学胶层300靠近所述基板100的一侧与所述光学胶层300远离所述基板100的一侧的垂直距离）。为了克服油墨断差，原本采用的光学胶层300厚度为油墨层厚度的3-4倍，由于本申请可以克服现有技术中涂布遮光层200所产生的油墨段差，则相应地可以减小所述光学胶层300的厚度，优选地，本申请中所述光学胶层300的厚度为所述遮光层200的1~3倍。当所述遮光层200的厚度为15um~25um，所述光学胶层300的厚度对应为15um~75um；例如：所述遮光层的厚度为16um，所述光学胶层300的厚度为40um；所述遮光层的厚度为24um，所述光学胶层300的厚度为50um，但不仅限于此。
在本申请中，所述槽口121的宽度（所述槽口121的宽度为所述槽口121两侧面之间的垂直距离）小于所述基板100的宽度（所述基板100的宽度为所述基板100两侧面之间的垂直距离）。并且，所述槽口121填满所述非可视区120，而所述遮光层200的填满所述槽口121，即所述遮光层200覆盖整个非可视区120。本领域技术人员可以理解的是，在所述非可视区120，通常会有金属走线以及其他器件，而金属走线以及其他器件通常不是均匀分布的，并且所述金属走线与其他器件的原本视觉颜色并不相同，而将所述遮光层200覆盖整个非可视区120，可以增强视觉上的均一性，以及提高显示装置的显示效果。
具体的，请参阅图2至图3D，图2为本申请实施例所提供的一种显示盖板10的制备流程示意图；图3A至图3D为本申请实施例所提供的一种显示盖板10的各部分结构示意图。本申请还提供一种上述显示盖板10的制备方法，包括如下步骤：
请参阅图3A，步骤S1：提供一基板100，并在所述基板100的一侧开设至少一槽口121；
请参阅图3B，步骤S2：在所述槽口121内填充遮光油墨，形成一遮光层200；
请参阅图3C，步骤S3：在所述基板100形成有所述遮光层200的一侧贴合一层光学胶，形成一光学胶层300。
请参阅图3D，在一些实施例中，上述显示盖板10的制备方法还包括步骤S4：对所述基板100背离所述槽口121的一侧进行整面硬化处理，形成一硬化层130。所述整面硬化处理工艺为本领域常规手段，本申请不再赘述。
具体的，请参阅图4，图4为本申请实施例所提供的一种显示装置1的结构示意图。本申请还提供一种上述显示装置1，包括上述提及的所述显示盖板10、偏光片20以及显示面板30。所述偏光片均为本领域常见结构，本申请中不再赘述。
在具体实施时，本申请实施例提供的上述显示装置1并不限定显示面板30的类型，显示面板30具体可以是液晶显示面板、有机电致发光显示面板、阴极射线管显示面板、等离子显示面板、电子纸或电致发光显示面板中的任意一种。并且，本发明实施例提供的上述显示装置1可以为：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。
本申请公开了一种显示盖板10及其制备方法、显示装置1。所述显示盖板10包括：一基板100，所述基板100包括可视区110与非可视区120，所述非可视区120设置至少一槽口121；一遮光层200，所述遮光层200设置于所述非可视区120的所述槽口121内；一光学胶层300，所述光学胶层300覆盖所述遮光层200以及所述基板100的可视区110。在所述槽口121内设置遮光层200可以克服现有技术中涂布遮光层200所产生的油墨段差，使所述光学胶层300与所述基板100完全贴合，从而规避产生气泡的风险，提高显示盖板10的生产良率；并且，由于不需要克服油墨断差影响，可降低所述光学胶层300的厚度，从而降低所述显示装置1的厚度，提升产品外观。
并且，所述基板100背离所述槽口121的一侧还进行了整面硬化处理，形成一硬化层130。所述硬化层130可以保证显示盖板10具有良好的柔韧性以及可弯折性，同时又具有良好的耐磨性以及硬度，提升产品的品质。
在上述实施例中，对各个实施例的描述都各有侧重，某个实施例中没有详述的部分，可以参见其他实施例的相关描述。
以上对本申请实施例所提供的显示盖板10及其制备方法、显示装置1进行了详细介绍，本文中应用了具体个例对本申请的原理及实施方式进行了阐述，以上实施例的说明只是用于帮助理解本申请的技术方案及其核心思想；本领域的普通技术人员应当理解：其依然可以对前述各实施例所记载的技术方案进行修改，或者对其中部分技术特征进行等同替换；而这些修改或者替换，并不使相应技术方案的本质脱离本申请各实施例的技术方案的范围。

Claims (20)

  1. 一种显示盖板，其特征在于，包括：
    一基板，所述基板包括可视区与非可视区，所述非可视区设置至少一槽口；
    一遮光层，所述遮光层设置于所述非可视区的所述槽口内；以及，
    一光学胶层，所述光学胶层覆盖所述遮光层以及所述基板的可视区；其中，
    所述遮光层的厚度与所述槽口的深度相同，并且所述遮光层的厚度小于所述光学胶层的厚度。
  2. 如权利要求1所述的显示盖板，其特征在于，所述基板还包括一硬化层，所述硬化层设置于所述基板远离所述遮光层的一侧，并且覆盖所述基板。
  3. 如权利要求1所述的显示盖板，其特征在于，所述遮光层的材料为遮光油墨。
  4. 如权利要求1所述的显示盖板，其特征在于，所述基板的折射率小于所述光学胶层的折射率。
  5. 如权利要求1所述的显示盖板，其特征在于，所述遮光层的材料为遮光油墨。
  6. 如权利要求5所述的显示盖板，其特征在于，所述遮光油墨为黑色遮光油墨。
  7. 如权利要求1所述的显示盖板，其特征在于，所述槽口的纵向切面形状可以三角形，半圆形、矩形、梯形或其他规则形状中的一种。
  8. 一种显示盖板，其特征在于，包括：
    一基板，所述基板包括可视区与非可视区，所述非可视区设置至少一槽口；
    一遮光层，所述遮光层设置于所述非可视区的所述槽口内；以及，
    一光学胶层，所述光学胶层覆盖所述遮光层以及所述基板的可视区。
  9. 如权利要求8所述的显示盖板，其特征在于，所述基板还包括一硬化层，所述硬化层设置于所述基板远离所述遮光层的一侧，并且覆盖所述基板。
  10. 如权利要求8所述的显示盖板，其特征在于，所述遮光层的厚度与所述槽口的深度相同。
  11. 如权利要求8所述的显示盖板，其特征在于，所述遮光层的厚度小于所述光学胶层的厚度。
  12. 如权利要求8所述的显示盖板，其特征在于，所述基板的折射率小于所述光学胶层的折射率。
  13. 如权利要求1所述的显示盖板，其特征在于，所述遮光层的材料为遮光油墨。
  14. 如权利要求13所述的显示盖板，其特征在于，所述遮光油墨为黑色遮光油墨。
  15. 如权利要求8所述的显示盖板，其特征在于，所述槽口的纵向切面形状可以三角形，半圆形、矩形、梯形或其他规则形状中的一种。
  16. 如权利要求8所述的显示盖板，其特征在于，所述光学胶层的材料为亚克力胶材、有机硅胶、橡胶、环氧型树脂以及半固化的液态光学胶中的至少一种。
  17. 一种如权利要求1和8所述的显示盖板的制备方法，其特征在于，包括步骤：
    提供一基板，并在所述基板的一侧开设至少一槽口；
    在所述槽口内填充遮光材料，以形成一遮光层；以及
    在所述基板形成有所述遮光层的一侧贴合一层光学胶，形成一光学胶层。
  18. 如权利要求17所述的显示盖板的制备方法，其特征在于，还包括步骤：对所述基板背离所述槽口的一侧进行整面硬化处理，形成一硬化层。
  19. 一种显示装置，包括如权利要求1至16所述的显示盖板及显示面板，其中，所述显示盖板设置于所述显示面板的出光侧。
  20. 如权利要求19所述的显示装置，其特征在于，所述显示装置还包括设置于所述显示面板与所述显示盖板之间的偏光片。
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