CN112578586A - Assembly, display screen module, terminal equipment and manufacturing method of display screen module - Google Patents

Assembly, display screen module, terminal equipment and manufacturing method of display screen module Download PDF

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Publication number
CN112578586A
CN112578586A CN202011527249.XA CN202011527249A CN112578586A CN 112578586 A CN112578586 A CN 112578586A CN 202011527249 A CN202011527249 A CN 202011527249A CN 112578586 A CN112578586 A CN 112578586A
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CN
China
Prior art keywords
display screen
screen module
transparent cover
cover plate
polarizer
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Pending
Application number
CN202011527249.XA
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Chinese (zh)
Inventor
姜洋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Guangdong Oppo Mobile Telecommunications Corp Ltd
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Guangdong Oppo Mobile Telecommunications Corp Ltd
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Application filed by Guangdong Oppo Mobile Telecommunications Corp Ltd filed Critical Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority to CN202011527249.XA priority Critical patent/CN112578586A/en
Publication of CN112578586A publication Critical patent/CN112578586A/en
Pending legal-status Critical Current

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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
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528Polarisers
    • 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
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09FDISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30Indicating 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
    • G09F9/33Indicating 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 being semiconductor devices, e.g. diodes
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04MTELEPHONIC COMMUNICATION
    • H04M1/00Substation equipment, e.g. for use by subscribers
    • H04M1/02Constructional features of telephone sets
    • H04M1/0202Portable telephone sets, e.g. cordless phones, mobile phones or bar type handsets
    • H04M1/026Details of the structure or mounting of specific components
    • H04M1/0266Details of the structure or mounting of specific components for a display module assembly

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

Abstract

The application relates to a combined piece, a display screen module, a terminal device and a manufacturing method of the display screen module. The manufacturing method of the display screen module comprises the following steps: providing a screen assembly and a transparent high polymer material, wherein the screen assembly comprises a polaroid; placing a transparent polymer material and a screen assembly in a mold; and forming a transparent cover plate on the polaroid by adopting a pressure forming process to obtain the display screen module. According to the manufacturing method of the display screen module, the transparent cover plate is formed by the transparent high polymer material through the pressure forming of the polaroid, and the transparent cover plate and the polaroid can be reliably connected through the pressure forming process, so that an optical adhesive layer between the transparent cover plate and the polaroid can be omitted, the thickness of the display screen module is reduced, and the light and thin design of the display screen module is realized.

Description

Assembly, display screen module, terminal equipment and manufacturing method of display screen module
Technical Field
The application relates to the technical field of display screens, in particular to a manufacturing method of a combined piece, a display screen module, a terminal device and the display screen module.
Background
Terminal equipment's such as smart mobile phone display screen module generally includes the display screen and covers the protection apron of display screen, and the protection apron generally through transparent optical cement connect in the display screen, and this kind of structure setting is unfavorable for the frivolousization of display screen module.
Disclosure of Invention
The embodiment of the application provides a manufacturing method of a combined piece, a display screen module, a terminal device and the display screen module, and the manufacturing method is beneficial to the light and thin design of the display screen module.
A manufacturing method of a display screen module comprises the following steps:
providing a screen assembly and a transparent high polymer material, wherein the screen assembly comprises a polaroid;
placing the transparent polymeric material and the screen assembly in a mold; and
and forming a transparent cover plate on the polaroid by adopting a pressure forming process to obtain the display screen module.
According to the manufacturing method of the display screen module, the transparent cover plate is formed by the transparent high polymer material through the pressure forming of the polaroid, and the transparent cover plate and the polaroid can be reliably connected through the pressure forming process, so that an optical adhesive layer between the transparent cover plate and the polaroid can be omitted, the thickness of the display screen module is reduced, and the light and thin design of the display screen module is realized.
In one embodiment, the step of forming the transparent cover on the polarizer by using a pressure forming process includes:
the die is closed so that the transparent high polymer material covers one side of the polaroid;
ultraviolet light curing the transparent high polymer material, and maintaining the pressure for 50-70 s, wherein the pressure for maintaining the pressure is 9-11 kg; and
and opening the mold to obtain the transparent cover plate.
In one embodiment, after the step of forming the transparent cover plate on the polarizer by using a pressure forming process, the method further includes:
and a hardening layer is arranged on one side of the transparent cover plate, which is back to the polaroid.
In one embodiment, after the step of disposing a hardened layer on a side of the transparent cover plate facing away from the polarizer, the method further includes:
and a hydrophobic oil drainage layer is arranged on one side of the hardened layer, which is back to the transparent cover plate.
In one embodiment, the screen assembly comprises a screen, the screen is arranged on one side of the polarizer, which is opposite to the transparent cover plate, and the screen comprises a display area and a non-display area arranged on the periphery of the display area; before the step of providing the screen assembly and the transparent polymer material, the method further comprises the following steps:
and printing an ink layer on the edge of one side of the polaroid, wherein the ink layer is used for covering the non-display area.
In one embodiment, the transparent cover plate, the ink layer and the polarizer extend out of the screen in the direction in which the display area points to the non-display area.
In one embodiment, the screen assembly comprises a back film layer, a foam layer and a heat dissipation copper foil layer which are sequentially stacked, wherein the back film layer is connected to one side of the screen, which is back to the polaroid.
In one embodiment, the transparent polymer material includes one or more of polyamide, polyimide, acryl, polycarbonate, polysulfone, polyethersulfone, cyclic olefin copolymer, polyethylene terephthalate, polyethylene naphthalate, and polyacrylate.
A display screen module is obtained by the manufacturing method of the display screen module.
The terminal equipment comprises a shell and the display screen module, wherein the display screen module is fixedly connected with the shell.
An assembly, comprising:
a polarizer; and
and the transparent cover plate is formed on one side of the polaroid in a pressure forming mode.
In one embodiment, the material of the transparent cover plate includes one or more of polyamide, polyimide, acrylic, polycarbonate, polysulfone, polyethersulfone, cyclic olefin copolymer, polyethylene terephthalate, polyethylene naphthalate, and polyacrylate.
The utility model provides a display screen module, is including the screen, rete, the cotton layer of bubble, strengthening layer and the heat dissipation copper foil layer that stack gradually the setting to and foretell sub-assembly, the screen connect in dorsad of polaroid one side of transparent cover plate.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic view of a viewing angle of a terminal device according to an embodiment;
FIG. 2 is a schematic view of another perspective of the terminal device shown in FIG. 1;
FIG. 3 is a partial cross-sectional view of a display module according to an embodiment;
FIG. 4 is a schematic view of an embodiment of a transparent polymeric material and a screen assembly disposed in a mold, wherein the mold is in an open state;
FIG. 5 is a schematic view of an embodiment of a transparent polymeric material and screen assembly placed in a mold, wherein the mold is in a closed position;
FIG. 6 is a flowchart illustrating a method of manufacturing a display module according to an embodiment;
FIG. 7 is a flowchart of step S400 shown in FIG. 6;
fig. 8 is a schematic block structure diagram of a terminal device according to an embodiment.
Reference numerals:
10. terminal device 11, shell 111, center
113. Back cover 12, display screen module 121 and assembly
1211. Polarizer 1213, transparent cover 1215, ink layer
123. Screen 1231, display area 1233, non-display area
125. A back film layer 127, a foam layer 129 and a strengthening layer
128. Heat dissipation copper foil layer 13, transparent polymer material 20, mould
21. Upper die 23, lower die 23a and cavity
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
As used herein, "terminal device" refers to a device capable of receiving and/or transmitting communication signals including, but not limited to, devices connected via any one or more of the following connections:
(1) via wireline connections, such as via Public Switched Telephone Network (PSTN), Digital Subscriber Line (DSL), Digital cable, direct cable connections;
(2) via a Wireless interface means such as a cellular Network, a Wireless Local Area Network (WLAN), a digital television Network such as a DVB-H Network, a satellite Network, an AM-FM broadcast transmitter.
A terminal device arranged to communicate over a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:
(1) satellite or cellular telephones;
(2) personal Communications Systems (PCS) terminals that may combine cellular radiotelephones with data processing, facsimile, and data Communications capabilities;
(3) radiotelephones, pagers, internet/intranet access, Web browsers, notebooks, calendars, Personal Digital Assistants (PDAs) equipped with Global Positioning System (GPS) receivers;
(4) conventional laptop and/or palmtop receivers;
(5) conventional laptop and/or palmtop radiotelephone transceivers, and the like.
Referring to fig. 1 and 2, in some embodiments, terminal device 10 is a smartphone. In other embodiments, the terminal device 10 may be a tablet computer, a handheld game console, or the like. Terminal equipment 10 includes shell 11 and display screen module 12, and display screen module 12 fixed connection is in shell 11. The housing 11 may further include a middle frame 111 and a rear cover 113, the middle frame 111 being disposed around the display screen module 12. The display screen module 12 may be fixedly connected to the middle frame 111 by using dispensing processes, so as to fix the display screen module 12 to the middle frame 111 and improve the waterproof and dustproof performance of the terminal device 10. The rear cover 113 is connected to an end of the middle frame 111 facing away from the display module 12, and the main appearance of the terminal device 10 is presented by the rear cover 113.
The material of the middle frame 111 may be metal, such as aluminum alloy, magnesium alloy, or stainless steel, and the material of the middle frame 111 may also be nonmetal, such as ceramic, glass, or plastic. Of course, the middle frame 111 may be a metal injection molded part, that is, the structural rigidity of the middle frame 111 is ensured by using a metal substrate, and the metal substrate forms structures for assembling and positioning other parts, such as a boss, a sink groove, and a through hole, through an injection molding process. The material of the rear cover 113 may be the same as or different from that of the middle frame 111. For example, the material of the rear cover 113 may be glass, plastic, or ceramic. For example, the rear cover 113 may be made of aluminum alloy, magnesium alloy, or stainless steel. Of course, the rear cover 113 may be integrally formed with the middle frame 111.
The display module 12 can be used to display information and provide an interactive interface for users. The terminal device 10 may further include electronic components such as a circuit board (not shown) and a battery (not shown) disposed in the housing 11, the circuit board may integrate a processor, a power management unit, a memory, a baseband chip, and the like of the terminal device 10, the battery and the display screen module 12 are electrically connected to the circuit board, and the battery can supply power to the display screen module 12 and the electronic components on the circuit board.
Referring to fig. 3, the display module 12 may include a combination 121 and a screen 123, where the combination 121 covers the screen 123 and can protect the screen 123. The screen 123 is used for providing a Display function, and may be an LCD (Liquid Crystal Display) type or an OLED (Organic Light-Emitting Diode) type. The present application takes the OLED type screen 123 as an example for explanation. The display screen module 12 may further include a back film layer 125, a foam layer 127, and a heat dissipation copper foil layer 128, which are sequentially stacked, wherein the back film layer 125 is disposed on a side of the screen 123 facing away from the assembly 121. The size of the backing layer 125 is equivalent to that of the screen 123, and it may be made of plastic material and used for supporting the screen 123. The dimensions of the foam layer 127 and the heat dissipation copper foil layer 128 can also be comparable to the dimensions of the screen 123, wherein the foam layer 127 is used for buffering, and the heat dissipation copper foil layer 128 is used for heat dissipation.
It will be appreciated that other layers may or may not be provided between two layers of the stacked arrangement. For example, in the embodiment of the present disclosure, a reinforcing layer 129 may be further disposed between the foam layer 127 and the heat dissipation copper foil layer 128, and the material of the reinforcing layer 129 may be PET (Polyethylene terephthalate), which can be used to improve the structural strength of the display screen module 12.
Referring to FIG. 3, assembly 121 includes polarizer 1211 and transparent cover 1213, transparent cover 1213 being pressure molded to the side of polarizer 1211 facing away from screen 123. The transparent cover plate 1213 is made of a transparent polymer material 13, and the transparent polymer material 13 includes one or more of polyamide, polyimide, acrylic, polycarbonate, polysulfone, polyethersulfone, cyclic olefin copolymer, polyethylene terephthalate, polyethylene naphthalate, and polyacrylate. The transparent cover 1213 has a relatively high light transmittance, for example, a light transmittance of 85% or more.
Referring to fig. 3, in some embodiments, an edge of the polarizer 1211 is printed with an ink layer 1215, and the ink layer 1215 is used to cover the non-display area 1233 of the screen 123. Specifically, the screen 123 may include a display area 1231 and a non-display area 1233 disposed at an outer periphery of the display area 1231, the display area 1231 being for providing a display function, and the non-display area 1233 being generally black-edged, and may be used to arrange a control circuit of the screen 123 and to prevent light leakage at an edge of the screen 123. In embodiments where the screen 123 has a rectangular shape or a rounded rectangle, the non-display area 1233 may be disposed around the display area 1231, i.e., the non-display area 1233 may have a rectangular ring shape or a rounded rectangular ring shape. The ink layer 1215 is disposed corresponding to the non-display area 1233 of the screen 123 and can block the non-display area 1233, so as to achieve a decorative effect. Ink layer 1215 can be white, or black, or other colors.
It is understood that the ink layer 1215 may be disposed on a side of the polarizer 1211 facing the screen 123 for shielding the non-display area 1233 of the screen 123. The ink layer 1215 may also be disposed on a side of the polarizer 1211 facing away from the screen 123 for shielding the non-display area 1233 of the screen 123.
In some embodiments, a step-shaped recessed region may be disposed at the edge of the polarizer 1211 for accommodating the ink layer 1215, so as to facilitate positioning and processing of the ink layer 1215 on the polarizer 1211, and prevent the ink layer 1215 from covering the position of the polarizer 1211 corresponding to the display area 1231 during printing, thereby reducing subsequent operations of removing excess ink, simplifying processing steps, and improving processing efficiency. It is understood that ink layer 1215 is not required and can be absent.
Further, in the embodiment where the screen 123 is connected to the polarizer 1211, the transparent cover 1213, the ink layer 1215 and the polarizer 1211 extend out of the screen 123 in the direction that the display area 1231 of the screen 123 points to the non-display area 1233. In other words, the size of the assembly 121 may be larger than that of the screen 123, so as to form a boss protruding from the screen 123 at the edge of the screen 123, and the boss may be used to lap on the middle frame 111 and form a reliable connection with the middle frame 111 through a dispensing process.
Referring to fig. 4 and 5, in some embodiments, the polarizer 1211 provided with the ink layer 1215 and one or more of the transparent polymer materials 13 may be placed in a mold 20, a transparent cover 1213 may be formed on one side of the polarizer 1211 through a pressure forming process, and a screen 123 or other devices may be connected to a side of the polarizer 1211 opposite to the transparent cover 1213. In other embodiments, the polarizer 1211 connected with the screen 123, the back film layer 125, the foam layer 127, and the heat dissipation copper foil layer 128 may be placed in the mold 20, and a transparent cover 1213 may be formed on the side of the polarizer 1211 facing away from the screen 123 by a pressure forming process.
Of course, it is understood that the structure of the display module 12 can be disassembled in another way. For example, display module 12 may be considered to include a transparent cover 1213 and a panel assembly that includes at least polarizer 1211. The screen assembly may also include devices such as a screen 123, a backsheet layer 125, a foam layer 127, and a heat sink copper foil layer 128.
The two ways of splitting the structure of the display screen module 12 can correspond to the manufacturing ways of different display screen modules 12. In the embodiment of splitting the display module 12 into the assembly 121 and the screen 123, the assembly 121 may be a separate product, and the screen 123, the back film layer 125, the foam layer 127, and the heat dissipation copper foil layer 128 are connected to the polarizer 1211 of the assembly 121 to obtain the display module 12. In the embodiment of splitting the display module 12 into the transparent cover plate 1213 and the screen assembly, the screen assembly may be an independent product, and the transparent cover plate 1213 may be formed on the screen assembly by subjecting the screen assembly and the transparent polymer material 13 to a pressure forming process in the mold 20.
In the display module 12, the transparent cover 1213 is formed by pressing the polarizer 1211 with the transparent polymer material 13, and the transparent cover 1213 and the polarizer 1211 can be reliably connected by the pressing process, so that the optical adhesive layer between the transparent cover 1213 and the polarizer 1211 can be omitted. Compared with the solution of connecting the transparent cover 1213 and the polarizer 1211 through the transparent optical adhesive layer in the related art, the display module 12 of the present application may omit the optical adhesive layer, and the thickness of the entire display module 12 may be reduced by about 0.15 mm under the same other conditions, so as to achieve the light and thin design of the display module 12, and further achieve the light and thin design of the terminal device 10.
Referring to fig. 6, the present application further provides a method for manufacturing the display module 12. The manufacturing method of the display screen module 12 comprises the following steps:
s100, printing an ink layer 1215 on one side edge of the polarizer 1211, wherein the ink layer 1215 is used for covering the non-display area 1233 of the screen 123.
Specifically, the screen 123 may include a display area 1231 and a non-display area 1233 disposed at an outer periphery of the display area 1231, the display area 1231 being for providing a display function, and the non-display area 1233 being generally black-edged, and may be used to arrange a control circuit of the screen 123 and to prevent light leakage at an edge of the screen 123. In embodiments where the screen 123 has a rectangular shape or a rounded rectangle, the non-display area 1233 may be disposed around the display area 1231, i.e., the non-display area 1233 may have a rectangular ring shape or a rounded rectangular ring shape. The ink layer 1215 is disposed corresponding to the non-display area 1233 of the screen 123 and can block the non-display area 1233, so as to achieve a decorative effect. Ink layer 1215 can be white, or black, or other colors.
It is understood that the ink layer 1215 may be disposed on a side of the polarizer 1211 facing the screen 123 for shielding the non-display area 1233 of the screen 123. The ink layer 1215 may also be disposed on a side of the polarizer 1211 facing away from the screen 123 for shielding the non-display area 1233 of the screen 123.
In some embodiments, a step-shaped recessed region may be disposed at the edge of the polarizer 1211 for accommodating the ink layer 1215, so as to facilitate positioning and processing of the ink layer 1215 on the polarizer 1211, and prevent the ink layer 1215 from covering the position of the polarizer 1211 corresponding to the display area 1231 of the screen 123 during printing, thereby reducing subsequent operations of removing excess ink, simplifying processing steps, and improving processing efficiency.
It is understood that step S100 may be absent, i.e., ink layer 1215 at the edge of polarizer 1211 may be absent.
S200, providing a screen assembly and a transparent high polymer material 13, wherein the screen assembly comprises a polaroid 1211.
Referring to the foregoing, in the first embodiment, the panel assembly includes the polarizer 1211 obtained in step S100, the polarizer 1211 may be placed in the mold 20 together with the transparent polymer material 13, and a transparent cover 1213 may be formed on one side of the polarizer 1211 by a press molding process. After the mold 20 is opened, a device such as a screen 123 is connected to the side of the polarizer 1211 facing away from the transparent cover 1213.
In the second embodiment, the panel assembly including the polarizer 1211 obtained in step S100, and the screen 123, the back film layer 125, the foam layer 127, the heat dissipation copper foil layer 128, and other devices may be placed in the mold 20 together with the transparent polymer material 13, and a transparent cover 1213 may be formed on one side of the polarizer 1211 by a press molding process. After the mold 20 is opened, the display screen module 12 with the display function can be obtained.
S300, placing the transparent high polymer material 13 and the screen assembly into the mold 20.
The transparent polymer material 13 includes one or more of polyamide, polyimide, acrylic, polycarbonate, polysulfone, polyethersulfone, cyclic olefin copolymer, polyethylene terephthalate, polyethylene naphthalate, and polyacrylate.
Referring to fig. 4 and 5, in some embodiments, the mold 20 may include an upper mold 21 and a lower mold 23, the lower mold 23 being provided with a cavity 23a, the shape of the cavity 23a matching the shape of the screen assembly. After the screen assembly and the transparent polymer material 13 are placed in the cavity 23a, the polymer material is located on the side of the screen assembly facing the upper mold 21, and at this time, the polymer material does not need to completely cover the surface of the polarizer 1211.
S400, a transparent cover 1213 is formed on the polarizer 1211 by using a pressure forming process to obtain the display module 12.
With reference to fig. 7, step S400 may specifically include steps S410, S420, and S430, which are specifically as follows:
s410, the mold 20 is closed to cover the transparent polymer material 13 on the side of the polarizer 1211.
In other words, after the mold 20 is closed, the upper mold 21 may press the transparent polymer material 13 to fill the entire cavity 23a with the transparent polymer material 13, so that the transparent polymer material 13 completely covers one side surface of the polarizer 1211.
And S420, curing the transparent high polymer material 13 by using the ultraviolet light, and maintaining the pressure for 50-70S, wherein the pressure for maintaining the pressure is 9-11 kg.
In the present embodiment, the transparent polymer material 13 in the cavity 23a after the mold is closed can be cured by irradiating the transparent polymer material 13 with ultraviolet light. The pressure in the cavity 23a may be controlled to be maintained for a certain period of time during the curing of the transparent polymer material 13. For example, the pressure in the cavity 23a may be maintained at about 10kg for about 60 seconds, so that the molded transparent cover 1213 has stable structural characteristics. This step forms a structurally stable assembly 121.
S430, the mold 20 is opened to obtain the transparent cover plate 1213.
The upper mold 21 is released from the lower mold 23, and the semi-finished product in the cavity 23a is taken out, thereby obtaining a transparent cover 1213 molded to the polarizer 1211.
Of course, after the semi-finished product in the cavity 23a is removed, the transparent cover 1213 formed on the transparent polymer material 13 may be subjected to appropriate processing, such as removing burrs, to facilitate further processing of the transparent cover 1213.
Further, referring to fig. 6, after step S430, i.e., after the step of forming transparent cover 1213 on polarizer 1211 by using a pressure forming process, steps S500 and S600 may be further included.
S500, a hardened layer is disposed on one side of the transparent cover 1213 facing the polarizer 1211.
Specifically, in some embodiments, after the curing liquid is uniformly coated on the side of the transparent cover 1213 facing away from the polarizer 1211 by a curtain coating process, the curing liquid is cured by UV light to form a curing film with a suitable thickness. For example, the thickness of the hardened film may be 7 nm to 10 nm. The adhesion force of the hardened film is not less than 5B in a Baige test, and the hardness of the hardened film is not less than 3H. The hardened film formed by the process can improve the wear resistance of the surface of the transparent cover plate 1213.
And S600, arranging a hydrophobic oil-phobic layer on the side, opposite to the transparent cover plate 1213, of the hardened layer.
The main effect of hydrophobic oil-repellent layer lies in preventing that the fingerprint from remaining, and can promote the clear convenience of fingerprint. The hydrophobic oleophobic layer can also improve smoothness of touch operation, and avoid unsmooth feeling of touch operation, so that touch experience is improved.
In the manufacturing method of the display module 12, the transparent cover 1213 is formed by pressing the polarizer 1211 with the transparent polymer material 13, and the transparent cover 1213 and the polarizer 1211 can be reliably connected by the pressing process, so that the optical adhesive layer between the transparent cover 1213 and the polarizer 1211 can be omitted. Compared with the solution of connecting the transparent cover 1213 and the polarizer 1211 through the transparent optical adhesive layer in the related art, the display module 12 of the present application may omit the optical adhesive layer, and the thickness of the entire display module 12 may be reduced by about 0.15 mm under the same other conditions, so as to achieve the light and thin design of the display module 12, and further achieve the light and thin design of the terminal device 10.
Referring to fig. 8, fig. 8 is a schematic structural diagram of a terminal device 10 according to an embodiment of the present application. The terminal device 10 may include a Radio Frequency (RF) circuit 501, a memory 502 including one or more computer-readable storage media, an input unit 503, a display unit 504, a sensor 505, an audio circuit 506, a Wireless Fidelity (WiFi) module 507, a processor 508 including one or more processing cores, and a power supply 509. Those skilled in the art will appreciate that the terminal device 10 configuration shown in fig. 8 does not constitute a limitation of the terminal device 10 and may include more or fewer components than those shown, or some components may be combined, or a different arrangement of components.
The rf circuit 501 may be used for receiving and transmitting information, or receiving and transmitting signals during a call, and in particular, receives downlink information of a base station and then sends the received downlink information to one or more processors 508 for processing; in addition, data relating to uplink is transmitted to the base station. In general, radio frequency circuit 501 includes, but is not limited to, an antenna, at least one Amplifier, a tuner, one or more oscillators, a Subscriber Identity Module (SIM) card, a transceiver, a coupler, a Low Noise Amplifier (LNA), a duplexer, and the like. In addition, the radio frequency circuit 501 may also communicate with a network and other devices through wireless communication. The wireless communication may use any communication standard or protocol, including but not limited to Global System for Mobile communications (GSM), General Packet Radio Service (GPRS), Code Division Multiple Access (CDMA), Wideband Code Division Multiple Access (WCDMA), Long Term Evolution (LTE), email, Short Message Service (SMS), and the like.
The memory 502 may be used to store applications and data. Memory 502 stores applications containing executable code. The application programs may constitute various functional modules. The processor 508 executes various functional applications and data processing by executing application programs stored in the memory 502. The memory 502 may mainly include a program storage area and a data storage area, wherein the program storage area may store an operating system, an application program required by at least one function (such as a sound playing function, an image playing function, etc.), and the like; the storage data area may store data (such as audio data, a phonebook, etc.) created according to the use of the terminal device 10, and the like. Further, the memory 502 may include high speed random access memory, and may also include non-volatile memory, such as at least one magnetic disk storage device, flash memory device, or other volatile solid state storage device. Accordingly, the memory 502 may also include a memory controller to provide the processor 508 and the input unit 503 access to the memory 502.
The input unit 503 may be used to receive input numbers, character information, or user characteristic information (such as a fingerprint), and generate a keyboard, mouse, joystick, optical, or trackball signal input related to user setting and function control. In particular, in one particular embodiment, the input unit 503 may include a touch-sensitive surface as well as other input devices. The touch-sensitive surface, also referred to as a touch display screen or a touch pad, may collect touch operations by a user (e.g., operations by a user on or near the touch-sensitive surface using a finger, a stylus, or any other suitable object or attachment) thereon or nearby, and drive the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface may comprise two parts, a touch detection means and a touch controller. The touch detection device detects the touch direction of a user, detects a signal brought by touch operation and transmits the signal to the touch controller; the touch controller receives touch information from the touch sensing device, converts the touch information into touch point coordinates, sends the touch point coordinates to the processor 508, and can receive and execute commands sent by the processor 508.
The display unit 504 may be used to display information input by or provided to the user and various graphical user interfaces of the terminal device 10, which may be made up of graphics, text, icons, video, and any combination thereof. The display unit 504 may include a display panel. Alternatively, the Display panel may be configured in the form of a Liquid Crystal Display (LCD), an Organic Light-Emitting Diode (OLED), or the like. Further, the touch-sensitive surface may overlay the display panel, and when a touch operation is detected on or near the touch-sensitive surface, the touch operation is transmitted to the processor 508 to determine the type of touch event, and then the processor 508 provides a corresponding visual output on the display panel according to the type of touch event. Although in FIG. 8 the touch sensitive surface and the display panel are two separate components to implement input and output functions, in some embodiments the touch sensitive surface may be integrated with the display panel to implement input and output functions.
The terminal device 10 may also include at least one sensor 505, such as light sensors, motion sensors, and other sensors. Specifically, the light sensor may include an ambient light sensor that adjusts the brightness of the display panel according to the brightness of ambient light, and a proximity sensor that turns off the display panel and/or the backlight when the terminal device 10 is moved to the ear. As one of the motion sensors, the gravity acceleration sensor can detect the magnitude of acceleration in each direction (generally, three axes), can detect the magnitude and direction of gravity when the mobile phone is stationary, and can be used for applications of recognizing the posture of the mobile phone (such as horizontal and vertical screen switching, related games, magnetometer posture calibration), vibration recognition related functions (such as pedometer and tapping), and the like; as for other sensors such as a gyroscope, a barometer, a hygrometer, a thermometer, and an infrared sensor, which can be configured in the terminal device 10, detailed description thereof is omitted.
The audio circuit 506 may provide an audio interface between the user and the terminal device 10 through a speaker, microphone. The audio circuit 506 can convert the received audio data into an electrical signal, transmit the electrical signal to a speaker, and convert the electrical signal into a sound signal to output; on the other hand, the microphone converts the collected sound signal into an electric signal, which is received by the audio circuit 506 and converted into audio data, and then the audio data is processed by the audio data output processor 508, and then the audio data is sent to, for example, another terminal device 10 via the radio frequency circuit 501, or the audio data is output to the memory 502 for further processing. The audio circuitry 506 may also include an earphone jack to provide communication of a peripheral earphone with the terminal device 10.
Wireless fidelity (WiFi) belongs to short-range wireless transmission technology, and the terminal device 10 can help the user send and receive e-mail, browse web pages, access streaming media and the like through the wireless fidelity module 507, and provides wireless broadband internet access for the user. Although fig. 8 shows the wireless fidelity module 507, it is understood that it does not belong to the essential constitution of the terminal device 10, and may be omitted entirely as needed within the scope not changing the essence of the invention.
The processor 508 is a control center of the terminal device 10, connects various parts of the entire terminal device 10 with various interfaces and lines, and performs various functions of the terminal device 10 and processes data by running or executing an application program stored in the memory 502 and calling up data stored in the memory 502, thereby performing overall monitoring of the terminal device 10. Optionally, processor 508 may include one or more processing cores; preferably, the processor 508 may integrate an application processor, which primarily handles operating systems, user interfaces, application programs, etc., and a modem processor, which primarily handles wireless communications. It will be appreciated that the modem processor described above may not be integrated into the processor 508.
The terminal device 10 also includes a power supply 509 to supply power to the various components. Preferably, the power supply 509 may be logically connected to the processor 508 through a power management system, so that the power management system may manage charging, discharging, and power consumption. The power supply 509 may also include any component such as one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.
Although not shown in fig. 8, the terminal device 10 may further include a bluetooth module or the like, which is not described in detail herein. In specific implementation, the above modules may be implemented as independent entities, or may be combined arbitrarily to be implemented as the same or several entities, and specific implementation of the above modules may refer to the foregoing method embodiments, which are not described herein again.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.

Claims (13)

1. A manufacturing method of a display screen module is characterized by comprising the following steps:
providing a screen assembly and a transparent high polymer material, wherein the screen assembly comprises a polaroid;
placing the transparent polymeric material and the screen assembly in a mold; and
and forming a transparent cover plate on the polaroid by adopting a pressure forming process to obtain the display screen module.
2. The method for manufacturing the display screen module according to claim 1, wherein in the step of forming the transparent cover plate on the polarizer by using a pressure forming process, the method comprises the following steps:
the die is closed so that the transparent high polymer material covers one side of the polaroid;
ultraviolet light curing the transparent high polymer material, and maintaining the pressure for 50-70 s, wherein the pressure for maintaining the pressure is 9-11 kg; and
and opening the mold to obtain the transparent cover plate.
3. The method for manufacturing a display screen module according to claim 2, wherein after the step of forming the transparent cover plate on the polarizer by using a pressure forming process, the method further comprises:
and a hardening layer is arranged on one side of the transparent cover plate, which is back to the polaroid.
4. The method for manufacturing a display screen module according to claim 3, further comprising, after the step of providing a hardened layer on a side of the transparent cover plate facing away from the polarizer:
and a hydrophobic oil drainage layer is arranged on one side of the hardened layer, which is back to the transparent cover plate.
5. The method for manufacturing the display screen module according to any one of claims 1 to 4, wherein the screen assembly comprises a screen, the screen is arranged on one side of the polarizer, which is opposite to the transparent cover plate, and the screen comprises a display area and a non-display area arranged on the periphery of the display area; before the step of providing the screen assembly and the transparent polymer material, the method further comprises the following steps:
and printing an ink layer on the edge of one side of the polaroid, wherein the ink layer is used for covering the non-display area.
6. The method for manufacturing a display screen module according to claim 5, wherein the transparent cover plate, the ink layer and the polarizer extend out of the screen in a direction in which the display area points to the non-display area.
7. The manufacturing method of the display screen module according to claim 6, wherein the screen assembly comprises a back film layer, a foam layer and a heat dissipation copper foil layer which are sequentially stacked, and the back film layer is connected to one side of the screen, which faces away from the polarizer.
8. The method for manufacturing a display screen module according to any one of claims 1 to 4, wherein the transparent polymer material comprises one or more of polyamide, polyimide, acrylic, polycarbonate, polysulfone, polyethersulfone, cyclic olefin copolymer, polyethylene terephthalate, polyethylene naphthalate and polyacrylate.
9. A display screen module, characterized in that the display screen module is obtained by the manufacturing method of the display screen module according to any one of claims 1 to 8.
10. A terminal device, comprising a housing and the display screen module of claim 9, wherein the display screen module is fixedly connected to the housing.
11. An assembly, comprising:
a polarizer; and
and the transparent cover plate is formed on one side of the polaroid in a pressure forming mode.
12. The assembly of claim 11, wherein the transparent cover comprises one or more of polyamide, polyimide, acrylic, polycarbonate, polysulfone, polyethersulfone, cyclic olefin copolymer, polyethylene terephthalate, polyethylene naphthalate, and polyacrylate.
13. A display screen module, comprising a screen, a back film layer, a foam layer, a strengthening layer and a heat dissipation copper foil layer, which are sequentially stacked, and the assembly of claim 11 or 12, wherein the screen is connected to one side of the polarizer opposite to the transparent cover plate.
CN202011527249.XA 2020-12-22 2020-12-22 Assembly, display screen module, terminal equipment and manufacturing method of display screen module Pending CN112578586A (en)

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