CN116314167A - Flexible display screen, manufacturing method thereof and intelligent watch - Google Patents

Flexible display screen, manufacturing method thereof and intelligent watch Download PDF

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Publication number
CN116314167A
CN116314167A CN202310355949.2A CN202310355949A CN116314167A CN 116314167 A CN116314167 A CN 116314167A CN 202310355949 A CN202310355949 A CN 202310355949A CN 116314167 A CN116314167 A CN 116314167A
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China
Prior art keywords
circuit substrate
flexible circuit
flexible
display screen
assembly
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Pending
Application number
CN202310355949.2A
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Chinese (zh)
Inventor
杨梅慧
钟文馗
林伟瀚
胡文党
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Konka Group Co Ltd
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Konka Group Co Ltd
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Priority to CN202310355949.2A priority Critical patent/CN116314167A/en
Publication of CN116314167A publication Critical patent/CN116314167A/en
Pending legal-status Critical Current

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    • 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
    • G—PHYSICS
    • G04—HOROLOGY
    • G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
    • G04B47/00—Time-pieces combined with other articles which do not interfere with the running or the time-keeping of the time-piece
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G17/00—Structural details; Housings
    • G04G17/02—Component assemblies
    • G04G17/04—Mounting of electronic components
    • G04G17/045—Mounting of the display
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G21/00—Input or output devices integrated in time-pieces
    • G—PHYSICS
    • G04—HOROLOGY
    • G04G—ELECTRONIC TIME-PIECES
    • G04G9/00—Visual time or date indication means
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
    • H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
    • H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
    • H01L21/56—Encapsulations, e.g. encapsulation layers, coatings
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L21/00—Processes or apparatus adapted for the manufacture or treatment of semiconductor or solid state devices or of parts thereof
    • H01L21/02—Manufacture or treatment of semiconductor devices or of parts thereof
    • H01L21/04—Manufacture or treatment of semiconductor devices or of parts thereof the devices having at least one potential-jump barrier or surface barrier, e.g. PN junction, depletion layer or carrier concentration layer
    • H01L21/50—Assembly of semiconductor devices using processes or apparatus not provided for in a single one of the subgroups H01L21/06 - H01L21/326, e.g. sealing of a cap to a base of a container
    • H01L21/60—Attaching or detaching leads or other conductive members, to be used for carrying current to or from the device in operation
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L25/00—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof
    • H01L25/16—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits
    • H01L25/167—Assemblies consisting of a plurality of individual semiconductor or other solid state devices ; Multistep manufacturing processes thereof the devices being of types provided for in two or more different main groups of groups H01L27/00 - H01L33/00, or in a single subclass of H10K, H10N, e.g. forming hybrid circuits comprising optoelectronic devices, e.g. LED, photodiodes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/005—Processes
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/005—Processes
    • H01L33/0093—Wafer bonding; Removal of the growth substrate
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/005—Processes
    • H01L33/0095—Post-treatment of devices, e.g. annealing, recrystallisation or short-circuit elimination
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/52—Encapsulations
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L33/00—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof
    • H01L33/48—Semiconductor devices with at least one potential-jump barrier or surface barrier specially adapted for light emission; Processes or apparatus specially adapted for the manufacture or treatment thereof or of parts thereof; Details thereof characterised by the semiconductor body packages
    • H01L33/62—Arrangements for conducting electric current to or from the semiconductor body, e.g. lead-frames, wire-bonds or solder balls

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Manufacturing & Machinery (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • Theoretical Computer Science (AREA)
  • Electric Clocks (AREA)

Abstract

The invention discloses a flexible display screen, a manufacturing method thereof and an intelligent watch, wherein the flexible display screen comprises a flexible circuit substrate, a display assembly, a functional module assembly, a circuit module assembly, a solar thin film battery and a sealing adhesive layer, and the display assembly, the functional module assembly and the circuit module assembly are all arranged on the top surface of the flexible circuit substrate; the flexible circuit substrate is provided with a printed circuit for conducting the display assembly, the functional module assembly and the circuit module assembly; the solar thin film battery is arranged on the bottom surface of the flexible circuit substrate; the flexible circuit substrate is provided with a through hole, a connecting piece is arranged in the through hole, one end of the connecting piece is electrically connected with the solar thin film battery, and the other end of the connecting piece is electrically connected with the printed circuit; the sealing adhesive layer is used for wrapping the flexible circuit substrate, the display assembly, the functional module assembly, the circuit module assembly and the solar thin film battery. The plurality of circuit devices are integrated on the flexible circuit substrate, so that the light and thin intelligent product is facilitated, and the comfort of use is improved.

Description

Flexible display screen, manufacturing method thereof and intelligent watch
Technical Field
The disclosure relates to the technical field of intelligent equipment, in particular to a flexible display screen, a manufacturing method thereof and an intelligent watch.
Background
At present, along with the continuous progress of technology, the life of people is also changed continuously. Nowadays, intelligent equipment is more and more favored by people in daily life because of strong functions and convenient operation. The intelligent watch is used as intelligent equipment for replacing the traditional watch, has the function of displaying time of the traditional watch, and can also be used for surfing the internet, talking, photographing, receiving and sending mails, measuring heart rate, measuring blood oxygen and the like. The common intelligent watch is characterized in that various electrical devices are arranged on a dial, a display screen is fixed, and various information is directly displayed on the display screen through a connecting wire and a connector; and a touch display screen is generally arranged, and a wearer controls various electrical devices through the touch display screen so as to acquire various information.
However, the display screen installed on the existing intelligent watch is a flat display screen, the thickness is more than 5 mm, the display screen is limited by materials and the technological level, wiring and connectors are required to be arranged in a dial plate, the whole intelligent watch is heavy, the intelligent watch cannot be well attached to the wrist of a wearer, and wearing comfort is affected.
Accordingly, the prior art is still in need of improvement and development.
Disclosure of Invention
In view of the above-mentioned prior art's not enough, the purpose of this disclosure is to provide a flexible display screen and manufacturing method thereof, intelligent wrist-watch, and aim at solving current flat display screen and lead to the structure rigidification of intelligent wrist-watch, lead to whole machine heavy, influence the problem of wearing comfort.
The technical scheme of the present disclosure is as follows:
the flexible display screen comprises a flexible circuit substrate, a display assembly, a functional module assembly, a circuit module assembly, a solar thin film battery and a sealing adhesive layer, wherein the display assembly, the functional module assembly and the circuit module assembly are all arranged on the top surface of the flexible circuit substrate; the flexible circuit substrate is provided with a printed circuit for conducting the display assembly, the functional module assembly and the circuit module assembly; the solar thin film battery is arranged on the bottom surface of the flexible circuit substrate; the flexible circuit substrate is provided with a through hole, a connecting piece is arranged in the through hole, one end of the connecting piece is electrically connected with the solar thin film battery, and the other end of the connecting piece is electrically connected with the printed circuit; the sealing adhesive layer is used for wrapping the flexible circuit substrate, the display assembly, the functional module assembly, the circuit module assembly and the solar thin film battery.
The flexible display screen comprises a display assembly and a display module, wherein the display assembly comprises a plurality of light emitting chips, and the light emitting chips are arranged on the flexible circuit substrate in an array manner; the functional module assembly comprises a plurality of touch sensing modules arranged on the flexible circuit substrate, and the touch sensing modules are arranged between two adjacent light emitting chips.
The flexible display screen comprises a display assembly and a touch sensing module, wherein the display assembly comprises a sealing structure arranged on a flexible circuit substrate, and the sealing structure is used for covering the light emitting chip and the touch sensing module.
The flexible display screen is characterized in that the middle part of the flexible circuit substrate is divided into a display area, and the two ends of the flexible circuit substrate are divided into non-display areas; the display assembly is arranged in the display area, and the solar thin film battery is arranged at a position, overlapping with the display area, on the bottom surface of the flexible circuit substrate.
The flexible display screen comprises a functional module assembly, a display area and a display area, wherein the functional module assembly comprises a fingerprint identification module, a physiological sensing module and a gyroscope, the fingerprint identification module and the physiological sensing module are arranged in the non-display area, and the gyroscope is arranged in the display area.
The flexible display screen, wherein the circuit module assembly comprises a button cell; and/or the solar thin film battery comprises an amorphous silicon low-illumination thin film battery; the flexible circuit substrate comprises a colorless transparent polyimide substrate; the sealing adhesive layer is a semitransparent silica adhesive layer.
The application also discloses a manufacturing method for the flexible display screen, which comprises the following steps:
providing a flexible circuit substrate;
punching a through hole on the flexible circuit substrate, and manufacturing a connecting piece by copper deposition;
manufacturing a printed circuit which is conducted with the connecting piece on the top surface of the flexible circuit substrate;
attaching a solar thin film battery which is conducted with the connecting piece to the bottom surface of the flexible circuit substrate;
attaching a display assembly, a functional module assembly and a circuit module assembly to a top surface of the flexible circuit substrate;
and sealing the flexible circuit substrate to manufacture a sealing layer.
The manufacturing method specifically includes the steps of attaching a display assembly, a functional module assembly and a circuit module assembly to the top surface of the flexible circuit substrate:
transferring the Micro LED chip array to the top surface of the flexible circuit substrate through a mass transfer process, and conducting the Micro LED chip array with the printed circuit;
a plurality of touch sensing modules are attached to the top surface of the flexible circuit substrate in gaps of the Micro LED chip array;
preparing a transparent sealing structure on the top surface of the flexible circuit substrate, wrapping the Micro LED chip array and the touch sensing module, and manufacturing a display assembly;
and a fingerprint identification module, a physiological sensing module, a gyroscope and a button cell are attached to the top surface of the flexible circuit substrate.
The manufacturing method, before the step of attaching the display assembly, the functional module assembly and the circuit module assembly to the top surface of the flexible circuit substrate, further includes:
attaching a rigid carrier plate to one side of the solar thin film battery, which is away from the flexible circuit substrate;
and before the step of sealing the flexible circuit substrate and manufacturing the sealing layer, the method further comprises the following steps:
and stripping the rigid carrier plate.
The application also discloses an intelligent watch, which comprises the flexible display screen, a metal bottom plate, function keys, SOS keys, an antenna and a watch chain, wherein the flexible display screen is nested on the metal bottom plate, and two ends of the flexible display screen are connected with the watch chain; the function keys, the SOS keys and the antenna are arranged on the side wall of the metal bottom plate at intervals; and diamond-shaped grid-shaped grooves are formed in the surface, which is in contact with the flexible display screen, of the metal bottom plate.
Compared with the prior art, the embodiment of the disclosure has the following advantages:
the flexible display screen integrates electrical devices such as a display assembly, a functional module assembly, a circuit module assembly, a solar thin film battery and the like on a flexible circuit substrate, and is conducted through a printed circuit. The flexible display screen of integrated design has saved the inside structure of walking the line of display screen or setting up the connection end, is favorable to making the light and handy flexible display screen of structure, and the display screen can be crooked into certain radian when using, forms restrictive flexible product, more laminating user's skin, improves the comfort of wearing.
The solar thin film battery that this flexible display screen set up can become the electric energy with light energy conversion, and the connecting piece can be for electrically conductive metal deposit such as copper, tin makes solar thin film battery and printed circuit switch on through the connecting piece, makes the electric energy that solar thin film battery produced available display screen use, has saved the operation of recharging repeatedly or changing the battery, is favorable to being applied to smart machine with flexible display screen on a long time, prolongs smart machine's duration.
In addition, all the electrical structures are wrapped through the sealing adhesive layer to isolate air, so that not only can oxidation corrosion be avoided, but also the situation that the flexible display screen is knocked in the use process can be reduced, and the service life of the flexible display screen is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present disclosure or the technical solutions in the prior art, the drawings that are required to be used in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments described in the present disclosure, and other drawings may be obtained according to these drawings without inventive effort for a person of ordinary skill in the art.
FIG. 1 is a schematic view of a flexible display screen of the present disclosure;
FIG. 2 is a cross-sectional view taken along the AA' direction of FIG. 1;
FIG. 3 is an exploded view of the structure of the flexible display screen of the present disclosure;
FIG. 4 is a flow chart of a method of manufacturing a flexible display screen of the present disclosure;
FIG. 5 is a process step diagram of a method of manufacturing a flexible display screen of the present disclosure;
fig. 6 is a schematic structural diagram of a smart watch according to the present disclosure;
FIG. 7 is a cross-sectional view taken along the BB' direction in FIG. 6;
fig. 8 is a schematic structural view of a metal chassis in the present disclosure.
Wherein, 100, flexible display screen; 110. a flexible circuit substrate; 111. a printed circuit; 1111. a driving circuit; 1112. an antenna circuit; 1113. a key circuit; 1114. an SOS circuit; 112. a through hole; 113. a connecting piece; 120. a display assembly; 121. a sealing structure; 130. a functional module assembly; 131. the touch sensing module; 132. a fingerprint identification module; 133. a physiological sensing module; 134. a gyroscope; 140. a circuit module assembly; 150. a solar thin film battery; 160. a sealing adhesive layer; 170. a rigid carrier plate; 200. a metal base plate; 201. grid-shaped grooves; 300. a bracelet; 400. a function key; 500. SOS key; 600. an antenna.
Detailed Description
In order that those skilled in the art will better understand the present disclosure, a clear and complete description of the technical solutions of the embodiments of the present disclosure will be provided below with reference to the accompanying drawings in the embodiments of the present disclosure, and it is apparent that the described embodiments are only some embodiments of the present disclosure, not all embodiments. Based on the embodiments in this disclosure, all other embodiments that a person of ordinary skill in the art would obtain without making any inventive effort are within the scope of protection of this disclosure.
Referring to fig. 1, 2 and 3, in one embodiment of the present disclosure, a flexible display 100 is disclosed, which includes a flexible circuit substrate 110, a display assembly 120, a functional module assembly 130, a circuit module assembly 140, a solar thin film battery 150 and a sealing layer 160, wherein the display assembly 120, the functional module assembly 130 and the circuit module assembly 140 are all disposed on a top surface of the flexible circuit substrate 110; the flexible circuit substrate 110 is provided with a printed circuit 111 for conducting the display assembly 120, the functional module assembly 130 and the circuit module assembly 140; the solar thin film battery 150 is disposed on the bottom surface of the flexible circuit substrate 110; a through hole 112 is formed in the flexible circuit substrate 110, a connecting member 113 is disposed in the through hole 112, one end of the connecting member 113 is electrically connected with the solar thin film battery 150, and the other end of the connecting member 113 is electrically connected with the printed circuit 111; the sealant layer 160 is used to wrap the flexible circuit substrate 110, the display assembly 120, the functional module assembly 130, the circuit module assembly 140, and the solar thin film battery 150.
The flexible display screen 100 disclosed in this embodiment integrates the display component 120, the functional module component 130, the circuit module component 140, the solar thin film battery 150 and other electrical devices on a flexible circuit substrate 110, and conducts the electrical devices through a printed circuit 111. The flexible display screen 100 of integrated design has saved the inside structure of walking the line of display screen or setting up the connection end, is favorable to making the light and handy flexible display screen 100 of structure, and the display screen can be crooked into certain radian when using, forms restrictive flexible product, more laminating user's skin, improves the comfort of wearing.
The solar thin film battery 150 provided by the flexible display screen 100 disclosed in this embodiment can convert light energy into electric energy, the connecting piece 113 can be made by depositing conductive metals such as copper and tin, and the solar thin film battery 150 is conducted with the printed circuit 111 through the connecting piece 113, so that the electric energy generated by the solar thin film battery 150 can be used by the display screen, the operation of repeatedly charging or replacing the battery is omitted, the flexible display screen 100 is favorably applied to intelligent equipment for a long time, and the endurance time of the intelligent equipment is prolonged.
In addition, all the electrical structures are wrapped through the sealing adhesive layer 160, so that air and water vapor are isolated, oxidation corrosion can be avoided, the situation that the flexible display screen 100 is knocked in the using process can be reduced, and the service life of the flexible display screen 100 is prolonged.
When the flexible display screen 100 is actually applied to the intelligent watch, watchbands can be arranged at two ends of the flexible display screen 100, the flexible display screen 100 is tied on the wrist of a wearer through the watchbands, the light and thin characteristics of the flexible display screen 100 are utilized, the flexible display screen 100 is properly bent, the fitting degree of the flexible display screen 100 and the wrist of the wearer is improved, the wearing comfort is improved, the stability of the intelligent watch can be improved, and the risk that the intelligent watch slides accidentally and breaks away from even in the wearing process is reduced. In addition, if be provided with the inductor such as measurement rhythm of the heart, blood oxygen, pulse in the intelligent wrist-watch, through improving intelligent wrist-watch and human skin's laminating degree, be favorable to improving inductor measuring degree of accuracy and measurement of efficiency, improve intelligent wrist-watch's result of use.
Specifically, as one implementation of the present embodiment, the flexible circuit substrate 110 is disclosed to include a colorless transparent polyimide substrate (CPI for short). The solar thin film battery 150 is disposed below the flexible circuit substrate 110, and needs illumination to generate electricity, so that the colorless and transparent polyimide substrate is disposed to carry various electrical devices in order to increase the light transmittance. In actual use, sunlight or lamplight can penetrate through the flexible circuit substrate 110 to irradiate the solar thin film battery 150, so that the charging efficiency of the solar thin film battery 150 is improved.
Specifically, the colorless transparent polyimide substrate adopted in the embodiment is convenient to process, and is beneficial to ensuring the accuracy of the processing size; the light-transmitting film has good stability and can keep good light transmittance in the long-time use process.
It should be noted that, in the present embodiment, the type of the flexible circuit substrate 110 is merely exemplified, but the protection scope of the present disclosure is not limited thereto, and other types of flexible circuit substrates 110 are also intended to be within the scope of the present disclosure as equivalent alternatives to the concept of the present disclosure as long as the technical effects disclosed herein can be achieved.
Specifically, as another implementation of the present embodiment, it is disclosed that the display assembly 120 includes a plurality of light emitting chips, and a plurality of light emitting chips are arranged in an array on the flexible circuit substrate 110; the functional module assembly 130 includes a plurality of touch sensing modules 131 disposed on the flexible circuit substrate 110, and the touch sensing modules 131 are disposed between two adjacent light emitting chips. In this embodiment, the touch sensing module 131 is provided, so that a user can directly call the content to be watched by touching the display screen, thereby improving the convenience of operation; by arranging the touch sensing modules 131 and the light emitting chips alternately at intervals, the display assembly 120 can be operated through a touch screen, and the operation flexibility of the flexible display screen 100 is improved.
As shown in fig. 2, as another implementation manner of this embodiment, the display assembly 120 includes a sealing structure 121 disposed on the flexible circuit substrate 110, where the sealing structure 121 is used to cover the light emitting chip and the touch sensing module 131. By arranging the sealing structure 121 to protect the light emitting chip and the touch sensing module 131 and increasing the stability of the structure, the flexible display screen 100 has stable structure, and the display function and the touch screen function can be effectively used for a long time.
Specifically, as another implementation manner of this embodiment, it is disclosed that the display component 120 includes at least one of a Micro LED chip, a Mini LED chip, and an organic light emitting diode chip. Micro LED technology, i.e., light-emitting diode (LED) miniaturization and matrixing technology, refers to a high-density Micro-sized LED array integrated on a chip, for example, an LED display screen, in which each pixel is addressable and individually driven to light, and can be regarded as a miniature version of reducing the pixel distance from millimeter level to micrometer level, similar to a conventional LED display screen. Micro LEDs are a new generation of display technology and have the technical characteristics of higher brightness, low power consumption, high PPI, transparency, good flexibility and the like. Therefore, the method can be used for wearing display equipment (such as a smart watch) with high integration, high performance and technical requirements. The Mini LED chip and the organic light emitting diode chip also have the characteristics of small volume, high arrangement density and convenience in preparing the flexible display screen 100.
It should be noted that, in the present embodiment, the type of the display assembly 120 is merely exemplified, but the scope of the disclosure is not limited thereto, and other types of display assemblies 120 are also intended to be within the scope of the disclosure as equivalent alternatives to the concept of the disclosure as long as the technical effects disclosed in the disclosure can be achieved.
Specifically, as another implementation manner of the present embodiment, it is disclosed that the middle portion of the flexible circuit substrate 110 is divided into a display area, and two ends of the flexible circuit substrate 110 are divided into non-display areas; the display assembly 120 is disposed in the display area, and the solar thin film battery 150 is disposed on the bottom surface of the flexible circuit substrate 110 at a position overlapping with the display area. In this embodiment, the display assembly 120 is arranged in the display area, the display assembly is designed in the middle, and other functional accessories can be adaptively arranged in the non-display areas on two sides, so that the complexity of the flat cable is reduced, and the flat cable is convenient to run. In addition, the solar thin film battery 150 is arranged on the back of the display area, so that the display area can be supported in the use process, deformation of the display area is avoided, the solar thin film battery 150 can be protected, and the problems of corrosion and damage of the battery are avoided.
As shown in fig. 3, as another implementation of the present embodiment, the printed circuit 111 is disclosed to include one or more of a driving circuit 1111, an antenna 600 circuit 1112, a power supply circuit, a key circuit 1113, and an SOS circuit 1114. The flexible circuit substrate 110 disclosed in this embodiment is provided with a plurality of functional module assemblies 130, so that a plurality of circuits are correspondingly printed on the flexible circuit substrate 110 according to requirements to conduct each electrical device so as to transmit electrical signals.
As shown in fig. 3, as another implementation manner of this embodiment, the functional module assembly 130 includes one or more of a fingerprint identification module 132, a physiological sensing module 133, and a gyroscope 134. In this embodiment, the functions of the flexible display screen 100 are increased by setting multiple functional modules, so as to provide more information, meet more use requirements, and increase the application range of the flexible display screen 100. The fingerprint identification module 132 is arranged to improve the security of the flexible display screen 100; the physiological sensing module 133 is configured to acquire information of the physical condition of the user, so that the user can intuitively understand the physical condition of the user on the flexible display screen 100; the gyroscope 134 is provided as an indicator to provide the user with accuracy and azimuth information.
Specifically, as another implementation of the present embodiment, the circuit module assembly 140 includes a button cell. The button cell is small in size, and the flexible display screen 100 is slightly influenced by the application of the button cell in the flexible display screen 100, so that the bending capability of the flexible display screen 100 is not influenced. And the coin cell battery may be provided as a rechargeable battery, such as a nickel-cadmium rechargeable battery, a nickel-hydrogen rechargeable battery, a lithium ion rechargeable battery, a lithium polymer rechargeable battery, a lead acid rechargeable battery, and the like. Through the conduction between the button cell and the printed circuit 111, the printed circuit 111 can transmit the electric energy converted by the solar thin film battery 150 to the button cell for temporary storage, so that the power supply to the functional module assembly 130 and the display assembly 120 can be conveniently performed at any time, and the power supply is convenient for a wearer to use at any time.
Specifically, as another implementation manner of this embodiment, it is disclosed that the solar thin film battery 150 includes an amorphous silicon low-illuminance thin film battery. The amorphous silicon low-illumination thin film battery adopted in the embodiment can be charged not only under outdoor natural light, but also under indoor lamplight illumination, and the charging time is long, so that the charging efficiency of the flexible display screen 100 is further improved, and the endurance time of the intelligent device is prolonged.
Specifically, as another implementation manner of this embodiment, the sealing adhesive layer 160 is disclosed as a semitransparent silicone adhesive layer. The sealant layer 160 is arranged to play a role in sealing and protecting, and meanwhile, the solar thin film battery 150 is arranged inside the sealant layer 160, so that the sealant layer 160 is arranged to be a semitransparent silica gel layer, and the solar thin film battery has a certain light transmittance, and avoids affecting the absorption and conversion of the solar thin film battery 150 to light energy. In addition, the electrical devices such as the display assembly 120, the functional module assembly 130, the circuit module assembly 140 and the like are all arranged inside the sealing glue layer 160, the sealing glue layer 160 is not completely transparent, a certain shading capability is provided, and the appearance of the flexible display screen 100 is blurred, so that the arrangement of internal parts cannot be directly exposed, and the appearance of the flexible display screen 100 is more attractive.
As another embodiment of the present application, as shown in fig. 4, a manufacturing method for the flexible display screen 100 as described in any one of the above is disclosed, which includes:
s100, providing a flexible circuit substrate 110;
s200, as shown in a diagram (a) of FIG. 5, a through hole is drilled on the flexible circuit substrate 110, and a connecting piece 113 is manufactured by copper deposition; the method comprises the steps of carrying out a first treatment on the surface of the
S300, manufacturing a printed circuit 111 which is conducted with the connecting piece 113 on the top surface of the flexible circuit substrate 110;
s400, as shown in fig. 5 (b), a solar thin film battery 150 electrically connected to the connector 113 is bonded to the bottom surface of the flexible circuit board 110;
s500, as shown in fig. 5 (c) to (f), attaching the display module assembly 120, the function module assembly 130, and the circuit module assembly 140 to the top surface of the flexible circuit substrate 110;
s600, as shown in fig. 5 (g), the flexible circuit board 110 is sealed to manufacture a sealing layer 160.
In this embodiment, the solar thin film battery 150 is attached to the flexible circuit substrate 110, then the display component 120 and the functional module component 130 are manufactured, and finally the glass rigid carrier plate 170 and the sealing layer 160 are manufactured to manufacture the integrated flexible display screen 100, so that the flexible display screen 100 has good flexibility and can be bent and deformed appropriately when being applied to the intelligent device, so as to improve the attachment with the skin of a human body. In general, the manufacturing method disclosed in this embodiment is simple in steps and high in processing accuracy.
Specifically, as one implementation manner of this embodiment, it is disclosed that the step S500 specifically includes:
s501, transferring the Micro LED chip array to the top surface of the flexible circuit substrate 110 through a mass transfer process, and conducting with the printed circuit 111;
s502, a plurality of touch sensing modules 131 are attached to the top surface of the flexible circuit substrate 110 in gaps of the Micro LED chip array;
s503, preparing a transparent sealing structure 121 on the top surface of the flexible circuit substrate 110, and wrapping the Micro LED chip array and the touch sensing module 131 to prepare a display assembly 120;
s504, a fingerprint identification module 132, a physiological sensing module 133, a gyroscope 134, and a button cell are attached to the top surface of the flexible circuit board 110.
The flexible circuit substrate 110 disclosed in this embodiment may be divided into a display area and a non-display area, and the display assembly 120 is directly manufactured on the flexible circuit substrate 110 by transferring a large amount of Micro LED chip arrays to the display area and transferring TP chips to the display area, and then preparing the transparent sealing structure 121. Compared with the processing method of manufacturing the display assembly 120 and transferring the display assembly to the flexible circuit substrate 110, the processing method disclosed in the embodiment has fewer processing steps, is simple to operate, and is directly prepared on the flexible circuit substrate 110, thereby being beneficial to improving the accuracy of conducting the electrical pins of the display assembly 120 with the printed circuit 111, and further being beneficial to improving the processing efficiency.
As shown in fig. 5, as another implementation manner of this embodiment, before the step S500 is disclosed, the method further includes:
attaching a rigid carrier plate 170 to a side of the solar thin film battery 150 facing away from the flexible circuit substrate 110;
and, before the step S600, further includes:
the rigid carrier plate 170 is peeled off.
In this embodiment, the rigid carrier plate 170 is used as a support to keep the flexible circuit substrate 110 flat during the processing process, so as to avoid deformation of the flexible circuit substrate 110 in the subsequent processing procedure and influence the processing efficiency. After the display assembly 120, the functional module assembly 130 and the circuit module assembly 140 are mounted, the rigid carrier plate 170 is peeled off.
As shown in fig. 6 and 7, as another embodiment of the present application, a smart watch is disclosed, which includes the flexible display 100, the metal chassis 200, the function keys 400, the SOS keys 500, the antenna 600 and the bracelet 300 as described above, wherein the flexible display 100 is nested on the metal chassis 200, and both ends of the flexible display 100 are connected with the bracelet 300; the function keys 400, the SOS keys 500, and the antenna 600 are disposed on the side wall of the metal chassis 200 at intervals.
The metal chassis 200 is provided for protecting the flexible display screen 100 in this embodiment. In actual assembly, the metal chassis 200 wraps around the non-display areas of the bottom, side, and top surfaces of the flexible display screen 100. The watch chain 300 is connected to two ends of the flexible display screen 100, and is used for tightly binding and fixing the flexible display screen 100 on the wrist of a wearer, so that the watch is convenient to use and stable. Moreover, the functional module assembly 130 on the flexible display screen 100 is adapted to be provided with the functional keys 400, the SOS keys 500, the antenna 600 and other parts, so that the user can conveniently control and selectively use the functions of the smart watch.
Specifically, the metal chassis 200 disclosed in the present embodiment includes, but is not limited to, an aluminum metal chassis 200, a copper metal chassis 200, and a silver metal chassis 200. By providing the metal chassis 200 having good ductility and being diamagnetic as a protection, it is possible to reduce the impact of external impacts and magnetic fields on the flexible display screen 100 during use. It should be noted that, in the present embodiment, the types of the metal base plate 200 are merely exemplified, but the protection scope of the present disclosure is not limited thereto, and other types of metal base plates 200 should be within the protection scope of the present disclosure as equivalent substitutions of the concept of the present disclosure as long as the technical effects disclosed in the present disclosure can be achieved.
As shown in fig. 8, as an implementation manner of this embodiment, it is disclosed that a diamond-shaped grid-shaped groove 201 is provided on a surface of the metal chassis 200, which is in contact with the flexible display screen 100. The intelligent equipment is worn on the human body, often can use in the open air, and outdoor activities face the temperature range big, in addition, the difference in season is different, and indoor outer temperature is different, and indoor outer difference in temperature is big in winter in high latitude area for example. In order to prevent stress damage of the screen caused by inconsistent temperature expansion coefficients of various materials of the smart watch, the sealing material of the flexible display screen 100, the flexible circuit substrate 110 and the metal bottom plate 200 are different in cold and hot expansion coefficients, and in this embodiment, diamond grid-shaped grooves 201 are formed in the metal bottom plate 200 to release stress caused by various temperature differences or external forces, so that the effects of resisting temperature differences and vibration are achieved.
In summary, the application discloses a flexible display screen 100, which includes a flexible circuit substrate 110, a display assembly 120, a functional module assembly 130, a circuit module assembly 140, a solar thin film battery 150, and a sealing layer 160, wherein the display assembly 120, the functional module assembly 130, and the circuit module assembly 140 are all disposed on the top surface of the flexible circuit substrate 110; the flexible circuit substrate 110 is provided with a printed circuit 111 for conducting the display assembly 120, the functional module assembly 130 and the circuit module assembly 140; the solar thin film battery 150 is disposed on the bottom surface of the flexible circuit substrate 110; a through hole 112 is formed in the flexible circuit substrate 110, a connecting member 113 is disposed in the through hole 112, one end of the connecting member 113 is electrically connected with the solar thin film battery 150, and the other end of the connecting member 113 is electrically connected with the printed circuit 111; the sealant layer 160 is used to wrap the flexible circuit substrate 110, the display assembly 120, the functional module assembly 130, the circuit module assembly 140, and the solar thin film battery 150. The flexible display screen 100 disclosed in this embodiment integrates the display component 120, the functional module component 130, the circuit module component 140, the solar thin film battery 150 and other electrical devices on a flexible circuit substrate 110, and conducts the electrical devices through a printed circuit 111. The flexible display screen 100 of integrated design has saved the inside structure of walking the line of display screen or setting up the connection end, is favorable to making the light and handy flexible display screen 100 of structure, and the display screen can be crooked into certain radian when using, forms restrictive flexible product, more laminating user's skin, improves the comfort of wearing. The solar thin film battery 150 provided by the flexible display screen 100 disclosed in this embodiment can convert light energy into electric energy, the connecting piece 113 can be made by depositing conductive metals such as copper and tin, and the solar thin film battery 150 is conducted with the printed circuit 111 through the connecting piece 113, so that the electric energy generated by the solar thin film battery 150 can be used by the display screen, the operation of repeatedly charging or replacing the battery is omitted, the flexible display screen 100 is favorably applied to intelligent equipment for a long time, and the endurance time of the intelligent equipment is prolonged. In addition, all the electrical structures are wrapped through the sealing adhesive layer 160 to isolate air, so that not only can oxidation corrosion be avoided, but also the occurrence of collision of the flexible display screen 100 in the use process can be reduced, and the service life of the flexible display screen 100 can be prolonged.
It should be noted that, without conflict, the embodiments and features of the embodiments in the present application may be combined with each other.
It should be noted that, the specific structure and working principle of the present disclosure are described by taking the flexible display screen as an example, but the application of the present disclosure is not limited to the flexible display screen, and may also be applied to the manufacture and use of other similar workpieces.
It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.
The foregoing description of the preferred embodiments of the present disclosure is not intended to limit the disclosure, but rather to enable any modification, equivalent replacement, improvement or the like, which fall within the spirit and principles of the present disclosure.

Claims (10)

1. The flexible display screen is characterized by comprising a flexible circuit substrate, a display assembly, a functional module assembly, a circuit module assembly, a solar thin film battery and a sealing layer, wherein the display assembly, the functional module assembly and the circuit module assembly are all arranged on the top surface of the flexible circuit substrate; the flexible circuit substrate is provided with a printed circuit for conducting the display assembly, the functional module assembly and the circuit module assembly;
the solar thin film battery is arranged on the bottom surface of the flexible circuit substrate; the flexible circuit substrate is provided with a through hole, a connecting piece is arranged in the through hole, one end of the connecting piece is electrically connected with the solar thin film battery, and the other end of the connecting piece is electrically connected with the printed circuit; the sealing adhesive layer is used for wrapping the flexible circuit substrate, the display assembly, the functional module assembly, the circuit module assembly and the solar thin film battery.
2. The flexible display screen of claim 1, wherein the display assembly comprises a plurality of light emitting chips arranged in an array on the flexible circuit substrate; the functional module assembly comprises a plurality of touch sensing modules arranged on the flexible circuit substrate, and the touch sensing modules are arranged between two adjacent light emitting chips.
3. The flexible display screen of claim 2, wherein the display assembly comprises a sealing compound structure disposed on the flexible circuit substrate, the sealing compound structure for covering the light emitting chip and the touch sensing module.
4. The flexible display screen of claim 1, wherein a middle portion of the flexible circuit substrate is divided into display areas and both ends of the flexible circuit substrate are divided into non-display areas; the display assembly is arranged in the display area, and the solar thin film battery is arranged at a position, overlapping with the display area, on the bottom surface of the flexible circuit substrate.
5. The flexible display screen of claim 4, wherein the functional module assembly comprises a fingerprint identification module, a physiological sensing module, and a gyroscope, the fingerprint identification module and the physiological sensing module being disposed within the non-display area, the gyroscope being disposed within the display area.
6. The flexible display screen of claim 1, wherein the circuit module assembly comprises a button cell; and/or the solar thin film battery comprises an amorphous silicon low-illumination thin film battery;
the flexible circuit substrate comprises a colorless transparent polyimide substrate; the sealing adhesive layer is a semitransparent silica adhesive layer.
7. A method of manufacturing a flexible display screen according to any one of claims 1 to 6, comprising:
providing a flexible circuit substrate;
punching a through hole on the flexible circuit substrate, and manufacturing a connecting piece by copper deposition;
manufacturing a printed circuit which is conducted with the connecting piece on the top surface of the flexible circuit substrate;
attaching a solar thin film battery which is conducted with the connecting piece to the bottom surface of the flexible circuit substrate;
attaching a display assembly, a functional module assembly and a circuit module assembly to a top surface of the flexible circuit substrate;
and sealing the flexible circuit substrate to manufacture a sealing layer.
8. The method of manufacturing of claim 7, wherein the step of attaching the display assembly, the functional module assembly, and the circuit module assembly to the top surface of the flexible circuit substrate specifically comprises:
transferring the Micro LED chip array to the top surface of the flexible circuit substrate through a mass transfer process, and conducting the Micro LED chip array with the printed circuit;
a plurality of touch sensing modules are attached to the top surface of the flexible circuit substrate in gaps of the Micro LED chip array;
preparing a transparent sealing structure on the top surface of the flexible circuit substrate, wrapping the Micro LED chip array and the touch sensing module, and manufacturing a display assembly;
and a fingerprint identification module, a physiological sensing module, a gyroscope and a button cell are attached to the top surface of the flexible circuit substrate.
9. The method of manufacturing of claim 7, wherein prior to the step of attaching the display assembly, the functional module assembly, and the circuit module assembly to the top surface of the flexible circuit substrate, further comprising:
attaching a rigid carrier plate to one side of the solar thin film battery, which is away from the flexible circuit substrate;
and before the step of sealing the flexible circuit substrate and manufacturing the sealing layer, the method further comprises the following steps:
and stripping the rigid carrier plate.
10. An intelligent watch is characterized by comprising the flexible display screen, a metal bottom plate, function keys, SOS keys, an antenna and a watch chain, wherein the flexible display screen is nested on the metal bottom plate, and two ends of the flexible display screen are connected with the watch chain; the function keys, the SOS keys and the antenna are arranged on the side wall of the metal bottom plate at intervals; and diamond-shaped grid-shaped grooves are formed in the surface, which is in contact with the flexible display screen, of the metal bottom plate.
CN202310355949.2A 2023-03-23 2023-03-23 Flexible display screen, manufacturing method thereof and intelligent watch Pending CN116314167A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202310355949.2A CN116314167A (en) 2023-03-23 2023-03-23 Flexible display screen, manufacturing method thereof and intelligent watch

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202310355949.2A CN116314167A (en) 2023-03-23 2023-03-23 Flexible display screen, manufacturing method thereof and intelligent watch

Publications (1)

Publication Number Publication Date
CN116314167A true CN116314167A (en) 2023-06-23

Family

ID=86837912

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202310355949.2A Pending CN116314167A (en) 2023-03-23 2023-03-23 Flexible display screen, manufacturing method thereof and intelligent watch

Country Status (1)

Country Link
CN (1) CN116314167A (en)

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