CN109991780B - Display panel and preparation method thereof - Google Patents

Display panel and preparation method thereof Download PDF

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Publication number
CN109991780B
CN109991780B CN201910208891.2A CN201910208891A CN109991780B CN 109991780 B CN109991780 B CN 109991780B CN 201910208891 A CN201910208891 A CN 201910208891A CN 109991780 B CN109991780 B CN 109991780B
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China
Prior art keywords
liquid crystal
area
display panel
display
self
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CN201910208891.2A
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CN109991780A (en
Inventor
程薇
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Wuhan China Star Optoelectronics Technology Co Ltd
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Wuhan China Star Optoelectronics Technology Co Ltd
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    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1337Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers
    • G02F1/13378Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation
    • G02F1/133788Surface-induced orientation of the liquid crystal molecules, e.g. by alignment layers by treatment of the surface, e.g. embossing, rubbing or light irradiation by light irradiation, e.g. linearly polarised light photo-polymerisation
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1341Filling or closing of cells
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1347Arrangement of liquid crystal layers or cells in which the final condition of one light beam is achieved by the addition of the effects of two or more layers or cells

Abstract

The invention provides a display panel and a preparation method thereof, wherein the display panel comprises a display area and a camera area for accommodating a camera; the display panel is provided with a frame adhesive tape surrounding the display area and the camera shooting area, the camera shooting area is provided with a solidified first liquid crystal layer, and the display area is provided with a second liquid crystal layer after orientation. By utilizing twice ultraviolet irradiation, the fixation of the self-alignment polymer liquid crystal in the camera shooting area and the normal alignment of the self-alignment polymer liquid crystal in the display area are realized, and the frame glue does not need to be used for packaging at the boundary between the camera shooting area and the display area, so that the black frame between the camera shooting area and the display area can be removed, and the visual and attractive effects are improved.

Description

Display panel and preparation method thereof
Technical Field
The invention relates to the technical field of display, in particular to a display panel and a preparation method thereof.
Background
The display screen structure of the special-shaped mobile phone on the market at present mainly comprises a beauty tip, a Notch, an inner hole and the like, and electronic devices such as a front camera of the mobile phone and the like are placed in the excavated special-shaped area.
However, when the liquid crystal display is used on an LCD, the frame glue is required to be used for packaging in the special-shaped area of the LCD display panel, so that a larger black frame is arranged in the boundary area between the camera and the display screen body, and the sensory experience is poor.
Disclosure of Invention
The invention provides a display panel, which aims to solve the technical problem that the conventional display panel has poor sensory experience due to a large black frame in a junction area of a camera and a display screen body.
In order to solve the above problems, the technical scheme provided by the invention is as follows:
a display panel comprises a display area and a camera area for accommodating a camera; the display panel is provided with a frame adhesive tape surrounding the display area and the camera shooting area, the camera shooting area is provided with a solidified first liquid crystal layer, and the display area is provided with a second liquid crystal layer after orientation.
Further, the whole frame adhesive tape is square.
Further, the first liquid crystal layer and the second liquid crystal layer are formed by irradiating self-aligned polymer liquid crystals with ultraviolet light.
Furthermore, a metal wiring is arranged at the junction of the camera shooting area and the display area.
Further, the metal wire is a transparent conductive metal wire.
The invention also provides a preparation method of the display panel, which comprises the following steps:
s10, providing a first substrate and a second substrate;
s20, forming a frame adhesive tape surrounding a display area and a camera shooting area on the first substrate, wherein the frame adhesive tape surrounds a containing area for containing liquid crystal;
s30, dropping liquid crystal into the accommodating area, curing the liquid crystal in the image pick-up area to form a cured first liquid crystal layer, and aligning the liquid crystal in the display area to form a second liquid crystal layer;
and S40, bonding the first substrate and the second substrate to form the display panel.
Further, the step S30 includes:
s31, dropping self-alignment polymer liquid crystal into the containing area;
s32, shielding the self-alignment polymer liquid crystal at the display area by using a mask plate, and irradiating the self-alignment polymer liquid crystal at the image pickup area by using ultraviolet light to solidify the self-alignment polymer liquid crystal in the image pickup area to form a first liquid crystal layer;
and S33, removing the mask plate, irradiating the self-alignment polymer liquid crystal in the display area by using ultraviolet light, and aligning the self-alignment polymer liquid crystal to form a second liquid crystal layer.
Further, the whole frame adhesive tape is square.
Furthermore, a metal wiring is arranged at the junction of the camera shooting area and the display area.
Further, the metal wire is a transparent conductive metal wire.
The invention has the beneficial effects that: by utilizing twice ultraviolet irradiation, the fixation of the self-alignment polymer liquid crystal in the camera shooting area and the normal alignment of the self-alignment polymer liquid crystal in the display area are realized, and the frame glue does not need to be used for packaging at the boundary between the camera shooting area and the display area, so that the black frame between the camera shooting area and the display area can be removed, and the visual and attractive effects are improved.
Drawings
In order to illustrate the embodiments or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the invention, and it is obvious for a person skilled in the art that other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic diagram of a display panel according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a display panel according to another embodiment of the present invention;
FIG. 3 is a schematic diagram of a display panel according to another embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating a process for manufacturing a display panel according to an embodiment of the present invention;
fig. 5 to 6 are schematic views illustrating a process of manufacturing a display panel according to an embodiment of the invention.
Reference numerals:
10. a camera area; 20. a display area; 30. framing adhesive tapes; 40. a first liquid crystal layer; 50. a second liquid crystal layer; 60. metal routing; 70. a first substrate; 80. a second substrate.
Detailed Description
The following description of the various embodiments refers to the accompanying drawings that illustrate specific embodiments in which the invention may be practiced. The directional terms mentioned in the present invention, such as [ upper ], [ lower ], [ front ], [ rear ], [ left ], [ right ], [ inner ], [ outer ], [ side ], are only referring to the directions of the attached drawings. Accordingly, the directional terms used are used for explanation and understanding of the present invention, and are not used for limiting the present invention. In the drawings, elements having similar structures are denoted by the same reference numerals.
The invention aims to solve the technical problems that in the existing display panel, a larger black frame exists in a boundary area between a camera and a display screen body, and the sensory experience is poor. The present invention can solve the above problems.
A display panel, as shown in FIG. 1, includes a display area 20 and a camera area 10 for accommodating a camera; the display panel is provided with a frame adhesive tape 30 surrounding the display area 20 and the camera area 10, the camera area 10 is provided with a solidified first liquid crystal layer 40, and the display area 20 is provided with a second liquid crystal layer 50 after orientation.
Through forming different liquid crystal layers in camera shooting area 10 and display area 20, the first liquid crystal layer 40 that is located camera shooting area 10 is in the solidification state, need not to use frame gum to seal camera shooting area 10 alone, gets rid of the black frame between camera shooting area 10 and the display area 20, promotes the pleasing to the eye effect of vision.
Specifically, the first liquid crystal layer 40 and the second liquid crystal layer 50 are formed of self-aligned polymer liquid crystals by ultraviolet irradiation.
It should be noted that, as known to those skilled in the art, the self-aligned polymer liquid crystal is prepared by adding a polymer prepolymer into a liquid crystal, and forming a film and aligning the liquid crystal layer under conditions of heating, ultraviolet irradiation, etc.; by forming the first liquid crystal layer 40 and the second liquid crystal layer 50 from the self-aligned polymer liquid crystal, it is not necessary to use frame glue for packaging at the boundary between the image pickup region 10 and the display region 20, and the equipment investment cost, maintenance and material usage are reduced.
Specifically, the frame tape 30 is square as a whole.
Since the frame adhesive tape 30 does not need to be designed into a special shape because the frame adhesive tape does not need to be packaged at the boundary between the camera area 10 and the display area 20, the production capacity and the manufacturing process are also facilitated.
Specifically, a metal trace 60 is disposed at a boundary between the camera area 10 and the display area 20.
Further, the metal trace 60 is a transparent conductive metal trace 60.
The wire winding on the border of the camera shooting area 10 is all wired with transparent conductive metal and arranged, and when the effect of each part of electric connection is played, the camera shooting area 10 does not need to be shielded by a black frame, and the visual effect is improved.
The imaging region 10 is formed in a circular shape by making a hole in the display panel.
In another embodiment, the imaging area 10 is a beauty tip (see fig. 2) or a cut (see fig. 3).
Based on the display panel, the invention further provides a preparation method of the display panel, as shown in fig. 4, comprising the following steps:
s10, providing a first substrate 70 and a second substrate 80;
s20, forming a frame adhesive tape 30 on the first substrate 70 to surround the display area 20 and the image pickup area 10, wherein the frame adhesive tape 30 surrounds an accommodating area for accommodating liquid crystal;
s30, dropping liquid crystal into the accommodating area, curing the liquid crystal in the image pickup area 10 to form a cured first liquid crystal layer 40, and aligning the liquid crystal in the display area 20 to form a second liquid crystal layer 50;
s40, bonding the first substrate 70 and the second substrate 80 together to form a display panel.
Further, the step S30 includes:
s31, dropping self-alignment polymer liquid crystal into the containing area;
s32, shielding the self-aligned polymer liquid crystal in the display area 20 with a mask, and irradiating the self-aligned polymer liquid crystal in the image pickup area 10 with ultraviolet light to solidify the self-aligned polymer liquid crystal in the image pickup area 10, so as to form a first liquid crystal layer 40;
s33, removing the mask, irradiating the self-aligned polymer liquid crystal in the display area 20 with ultraviolet light, and aligning the self-aligned polymer liquid crystal to form the second liquid crystal layer 50.
As shown in fig. 5, a frame adhesive tape 30 surrounding the display region 20 and the imaging region 10 is formed on the first substrate 70, and after the frame adhesive tape 30 surrounds a containing region for containing liquid crystal, self-aligned polymer liquid crystal is dropped into the containing region.
Irradiating the self-aligned polymer liquid crystal twice by using ultraviolet light, wherein the display area 20 is shielded by using a mask plate during the first irradiation, and the self-aligned polymer liquid crystal in the image pickup area 10 is irradiated by using criss-cross ultraviolet light, so that liquid crystal small molecules are fixed in the image pickup area 10 to form a first liquid crystal layer 40; the mask is removed during the second irradiation to achieve normal alignment of the self-aligned polymer liquid crystals in the display region 20, forming a second liquid crystal layer 50.
Wherein the frame tape 30 is square as a whole.
Specifically, a metal trace 60 is disposed at a boundary between the camera area 10 and the display area 20.
Further, the metal trace 60 is a transparent conductive metal trace 60.
As shown in fig. 6, the first substrate 70 and the second substrate 80 are bonded to each other to form a display panel.
The invention has the beneficial effects that: by utilizing twice ultraviolet irradiation, the fixation of the self-alignment polymer liquid crystal of the camera area 10 and the normal alignment of the self-alignment polymer liquid crystal of the display area 20 are realized, and the frame glue does not need to be used for packaging at the boundary between the camera area 10 and the display area 20, so that the black frame between the camera area 10 and the display area 20 can be removed, and the visual and aesthetic effects are improved.
In summary, although the present invention has been described with reference to the preferred embodiments, the above-described preferred embodiments are not intended to limit the present invention, and those skilled in the art can make various changes and modifications without departing from the spirit and scope of the present invention, therefore, the scope of the present invention shall be determined by the appended claims.

Claims (10)

1. A display panel is characterized by comprising a display area and a camera area for accommodating a camera; the display panel is provided with a frame adhesive tape surrounding the display area and the image pickup area, the image pickup area is provided with a solidified first liquid crystal layer, the display area is provided with a second liquid crystal layer after orientation, the first liquid crystal layer and the second liquid crystal layer comprise self-orientation polymer liquid crystal, and frame adhesive is not arranged on the boundary between the image pickup area and the display area.
2. The display panel according to claim 1, wherein the frame tape is square in shape as a whole.
3. The display panel according to claim 1, wherein the first liquid crystal layer and the second liquid crystal layer are formed from self-aligned polymer liquid crystal by ultraviolet irradiation.
4. The display panel according to claim 1, wherein a metal trace is disposed at a boundary between the image pickup region and the display region.
5. The display panel of claim 4, wherein the metal traces are transparent conductive metal traces.
6. A preparation method of a display panel is characterized by comprising the following steps:
s10, providing a first substrate and a second substrate;
s20, forming a frame adhesive tape surrounding a display area and a camera shooting area on the first substrate, wherein the frame adhesive tape surrounds a containing area for containing liquid crystal;
s30, dropping liquid crystal into the accommodating area, curing the liquid crystal in the image pick-up area to form a cured first liquid crystal layer, and aligning the liquid crystal in the display area to form a second liquid crystal layer;
and S40, bonding the first substrate and the second substrate to form the display panel.
7. The method for manufacturing a display panel according to claim 6, wherein the step S30 includes:
s31, dropping self-alignment polymer liquid crystal into the containing area;
s32, shielding the self-alignment polymer liquid crystal at the display area by using a mask plate, and irradiating the self-alignment polymer liquid crystal at the image pickup area by using ultraviolet light to solidify the self-alignment polymer liquid crystal in the image pickup area to form a first liquid crystal layer;
and S33, removing the mask plate, irradiating the self-alignment polymer liquid crystal in the display area by using ultraviolet light, and aligning the self-alignment polymer liquid crystal to form a second liquid crystal layer.
8. The method for manufacturing a display panel according to claim 7, wherein the frame tape is entirely square.
9. The method according to claim 8, wherein a metal trace is disposed at a boundary between the image capture area and the display area.
10. The method for manufacturing a display panel according to claim 9, wherein the metal traces are transparent conductive metal traces.
CN201910208891.2A 2019-03-19 2019-03-19 Display panel and preparation method thereof Active CN109991780B (en)

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CN110428737B (en) * 2019-07-30 2022-03-18 Oppo广东移动通信有限公司 Terminal equipment
CN111443515B (en) * 2020-05-29 2022-09-13 厦门天马微电子有限公司 Display panel, manufacturing method thereof and display device

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KR20120118205A (en) * 2011-04-18 2012-10-26 주식회사 엘지화학 Polarizer having hole for cammera, lcd panel and display apparatus utilizing the same
CN108885376A (en) * 2017-04-25 2018-11-23 华为技术有限公司 The production method of LCD display, electronic equipment and LCD display
CN109100891A (en) * 2018-08-10 2018-12-28 厦门天马微电子有限公司 A kind of display panel and display device
CN109164648A (en) * 2018-09-30 2019-01-08 厦门天马微电子有限公司 A kind of display panel and display device
CN109283722A (en) * 2018-09-30 2019-01-29 厦门天马微电子有限公司 A kind of display panel and preparation method thereof, display device

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TWI390289B (en) * 2009-06-24 2013-03-21 Century Display Shenzhen Co Liquid crystal display device and manufacturing method thereof
CN105954920B (en) * 2016-07-11 2019-11-05 深圳市华星光电技术有限公司 The production method of flexible liquid crystal panel
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Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102636896A (en) * 2011-02-14 2012-08-15 乐金显示有限公司 Display apparatus
KR20120118205A (en) * 2011-04-18 2012-10-26 주식회사 엘지화학 Polarizer having hole for cammera, lcd panel and display apparatus utilizing the same
CN108885376A (en) * 2017-04-25 2018-11-23 华为技术有限公司 The production method of LCD display, electronic equipment and LCD display
CN109100891A (en) * 2018-08-10 2018-12-28 厦门天马微电子有限公司 A kind of display panel and display device
CN109164648A (en) * 2018-09-30 2019-01-08 厦门天马微电子有限公司 A kind of display panel and display device
CN109283722A (en) * 2018-09-30 2019-01-29 厦门天马微电子有限公司 A kind of display panel and preparation method thereof, display device

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