CN115019655A - Display panel and preparation method thereof - Google Patents
Display panel and preparation method thereof Download PDFInfo
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- CN115019655A CN115019655A CN202210705953.2A CN202210705953A CN115019655A CN 115019655 A CN115019655 A CN 115019655A CN 202210705953 A CN202210705953 A CN 202210705953A CN 115019655 A CN115019655 A CN 115019655A
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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
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- Engineering & Computer Science (AREA)
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- Computer Hardware Design (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention provides a display panel and a preparation method thereof, the display panel is provided with a display area and a binding area which are arranged adjacently, the display panel at least comprises a substrate, a pixel circuit, a drive circuit, a first connecting terminal, a second connecting terminal, a first protective glue and a second protective glue, wherein the substrate is provided with a first surface and a second surface which are opposite, the pixel circuit and the drive circuit are respectively arranged on the first surface and the second surface, the pixel circuit is positioned in the display area, the first connecting terminal and the second connecting terminal are positioned in the binding area and are respectively arranged on the first surface and the second surface, the first protective glue and the second protective glue are respectively arranged on the first surface and the second surface and partially cover the first connecting terminal and the second connecting terminal along a first direction respectively, the first direction is the direction of the binding area of the display area, the invention adds the first protective glue and the second protective glue partially covering the first connecting terminal and the second connecting terminal, the reliability of signal transmission in the display panel is ensured.
Description
Technical Field
The invention generally relates to the technical field of display panels, and particularly relates to a display panel and a preparation method thereof.
Background
With the continuous development of electronic technology, more and more application scenes in life need to be used for a display panel, and how to ensure the reliability of signal transmission in the display panel is a problem to be solved at present based on the fact that the display panel is required to be used for the application scenes.
Disclosure of Invention
In order to solve the above problems or other problems, the present invention provides the following technical solutions.
In a first aspect, the present invention provides a display panel having a display area and a binding area adjacently disposed, the display panel at least comprising:
a substrate having opposing first and second surfaces;
the pixel circuit is arranged on the first surface and is positioned in the display area;
the driving circuit is arranged on the second surface;
the first connecting terminal and the second connecting terminal are positioned in the binding area and are respectively arranged on the first surface and the second surface; and (c) a second step of,
first protection glue and second protection glue set up respectively in the first surface with the second surface, and respectively along first direction part cover first connecting terminal with second connecting terminal, first direction is the display area points to the direction in district is bound.
According to the display panel of an embodiment of the invention, an interface line is provided between the display area and the binding area, and the first protective glue and the second protective glue respectively extend to the interface line along a second direction opposite to the first direction.
According to the display panel of the embodiment of the invention, the first connection terminal and the second connection terminal have a first length in a third direction perpendicular to the first direction, the first protective glue and the second protective glue have a second length in the third direction, and the first length is smaller than the second length.
According to the display panel of an embodiment of the invention, the substrate further has a side surface connecting the first surface and the second surface, and the display panel further includes a surrounding trace coupling the first connection terminal and the second connection terminal via the side surface and partially covering the first connection terminal and the second connection terminal along a second direction opposite to the first direction.
According to the display panel of the embodiment of the invention, the surrounding wires are connected with the first protective glue and the second protective glue.
In a second aspect, the present invention provides a method for manufacturing a display panel, the display panel having a display area and a binding area, the display area and the binding area being adjacently disposed, the method at least comprising:
providing a substrate having first and second opposing surfaces;
forming a pixel circuit and a driving circuit on the first surface and the second surface, respectively, the pixel circuit being located in the display region;
forming a first connection terminal and a second connection terminal on the first surface and the second surface, respectively, at the bonding region; and the number of the first and second groups,
and respectively forming a first protective adhesive and a second protective adhesive on the first surface and the second surface, wherein the first protective adhesive and the second protective adhesive partially cover the first connecting terminal and the second connecting terminal along a first direction respectively, and the first direction is a direction in which the display area points to the binding area.
According to the preparation method of the embodiment of the invention, the first protective glue and the second protective glue are formed by transfer printing.
According to the preparation method of an embodiment of the present invention, after the step of forming the first protective glue and the second protective glue on the first surface and the second surface respectively, the method further includes:
attaching a first protective film and a second protective film on the first surface and the second surface, respectively.
According to the manufacturing method of the embodiment of the invention, the first protective film and the second protective film respectively cover the first protective film and the second protective film, or edges of the first protective film, the second protective film, the first protective film and the second protective film in the bonding region are aligned.
According to the manufacturing method of an embodiment of the present invention, the substrate further has a side surface connecting the first surface and the second surface, and further includes, after the step of attaching the first protective film and the second protective film on the first surface and the second surface, respectively:
depositing a metal film layer on the first surface, the second surface and the side surface;
removing the first protective film and the second protective film; and the number of the first and second groups,
performing laser engraving on the metal film layer to form a surrounding wire, wherein the surrounding wire couples the first connecting terminal and the second connecting terminal via the side surface and partially covers the first connecting terminal and the second connecting terminal along a second direction opposite to the first direction.
The invention has the beneficial effects that: the invention provides a display panel and a preparation method thereof, the display panel is provided with a display area and a binding area which are arranged adjacently, the display panel at least comprises a substrate, a pixel circuit, a drive circuit, a first connecting terminal, a second connecting terminal, a first protective glue and a second protective glue, wherein the substrate is provided with a first surface and a second surface which are opposite, the pixel circuit and the drive circuit are respectively arranged on the first surface and the second surface, the pixel circuit is positioned in the display area, the first connecting terminal and the second connecting terminal are positioned in the binding area and are respectively arranged on the first surface and the second surface, the first protective glue and the second protective glue are respectively arranged on the first surface and the second surface and partially cover the first connecting terminal and the second connecting terminal along a first direction respectively, the first direction is the direction of the binding area of the display area, the invention adds the first protective glue and the second protective glue partially covering the first connecting terminal and the second connecting terminal, the reliability of signal transmission in the display panel is ensured.
Drawings
In order to more clearly illustrate the technical solution of the present invention, the drawings needed to be used in the description of the embodiments according to the present invention will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained based on these drawings without inventive effort.
Fig. 1 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention.
Fig. 2 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention.
Fig. 3 is a schematic flow chart of a method for manufacturing a display panel according to an embodiment of the invention.
Fig. 4 is a schematic flow chart of a method for manufacturing a display panel according to an embodiment of the present invention.
Fig. 5a to 5f are schematic process flow diagrams of a method for manufacturing a display panel according to an embodiment of the invention.
Fig. 6 is a schematic structural diagram of a display device according to an embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a mobile terminal according to an embodiment of the present invention.
Fig. 8 is a schematic diagram of a further structure of the mobile terminal according to the embodiment of the present invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, features defined as "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. "beneath," "under" and "beneath" a first feature includes the first feature being directly beneath and obliquely beneath the second feature, or simply indicating that the first feature is at a lesser elevation than the second feature.
The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.
Referring to fig. 1, fig. 1 is a schematic cross-sectional view illustrating a display panel 100 according to an embodiment of the invention, in which components and relative positions of the components can be visually seen.
As shown in fig. 1, the display panel 100 has a display area a and a bonding area B, and the display panel 100 at least includes a substrate 110, a pixel circuit 120, a driving circuit 130, a first connection terminal 140, a second connection terminal 150, a first protection adhesive 160, and a second protection adhesive 170, and the above components will be described in detail with reference to fig. 1.
The substrate 110 has a first surface 110a and a second surface 110B opposite to each other, the pixel circuit 120 and the driving circuit 130 are disposed on the first surface 110a and the second surface 110B, respectively, and the pixel circuit 120 is located in the display area a, and the first connection terminal 140 and the second connection terminal 150 are located in the bonding area B and are disposed on the first surface 110a and the second surface 110B, respectively.
It should be noted that the display panel 100 in the embodiment of the present invention is manufactured by a double-sided process, and the display panel 100 can implement seamless splicing of the display device. Specifically, the pixel circuit 120 formed on the first surface 110a is a Thin Film Transistor (TFT) circuit corresponding to each light emitting device (reference numeral 190 in fig. 2), the driving circuit 130 is configured to receive a driving signal, and the first connection terminal 140 and the second connection terminal 150 respectively disposed on the first surface 110a and the second surface 110b are configured to transmit the driving signal to the TFT circuit, so that the corresponding light emitting device emits light.
As a result of research by the present inventors, in the process of manufacturing the display panel 100, it is usually selected to attach an insulating protection film on the entire surfaces of the first surface 110a and the second surface 110, and then deposit a metal film layer for coupling the first connection terminal 140 and the second connection terminal 150 by using a Physical Vapor Deposition (PVD) process, however, in this embodiment, since the insulating protection film is prone to peeling (peeling), during the process of depositing the metal film layer, the metal extends to the display area a of the display panel 100, which may cause a problem such as short circuit (short), thereby seriously affecting the reliability of signal transmission in the display panel 100.
Referring back to fig. 1, in an embodiment of the present invention, as shown in fig. 1, the inventor designs to add a first protection adhesive 160 and a second protection adhesive 170 on the first surface 110a and the second surface 110B, respectively, and the first protection adhesive 160 and the second protection adhesive 170 partially cover the first connection terminal 140 and the second connection terminal 150 along a first direction X1, respectively, where the first direction X1 is a direction in which the display area a points to the bonding area B.
It should be noted that, in the embodiment of the present invention, since the first protection adhesive 160 and the second protection adhesive 170 partially covering the first connection terminal 140 and the second connection terminal 150 are respectively added in the display panel 100, on one hand, the first connection terminal 140 and the second connection terminal 150 exposed outside the first protection adhesive 160 and the second protection adhesive 170 can ensure that signals of the pixel circuit 120 and the driving circuit 130 are extracted, and on the other hand, the first protection adhesive 160 and the second protection adhesive 170 partially covering the first connection terminal 140 and the second connection terminal 150 can prevent metal from extending to the display area a of the display panel 100 when a metal film layer is deposited subsequently, thereby ensuring reliability of signal transmission in the display panel 100.
Specifically, in the embodiment of the present invention, the first protective paste 160 and the second protective paste 170 are insulating materials, which include, but are not limited to, at least one of epoxy resin and phenolic resin, and the first protective paste 160 and the second protective paste 170 have strong adhesion, specifically, a viscosity of 10 pas.
Further, referring to fig. 1, a boundary line S is formed between the display area a and the bonding area B, in the embodiment, in order to further improve the protection effect of the first protection paste 160 and the second protection paste 170, the first protection paste 160 and the second protection paste 170 respectively extend to the boundary line S along a second direction X2 opposite to the first direction X1.
It should be understood that, in other modifications according to the present invention, the first protective glue 160 and the second protective glue 170 may also extend to a position adjacent to the boundary line S along the second direction X2, and the present invention is not limited thereto.
Specifically, in the embodiment of the present invention, the first connection terminal 140 and the second connection terminal 150 have a first length (not shown) in a third direction (not shown) perpendicular to the first direction X1, and the first protection paste 160 and the second protection paste 170 have a second length (not shown) in the third direction, so as to ensure that the positions of the first protection paste 160 and the second protection paste 170, which will be used for depositing the metal film layer later, are blocked, and therefore, the first length is smaller than the second length.
Further, please refer to fig. 2, which is a schematic cross-sectional view of a display panel 100 according to an embodiment of the present invention.
As shown in fig. 2, in the embodiment of the invention, the substrate 110 further has a side surface 110c connecting the first surface 110a and the second surface 110b, the display panel 100 further includes a surrounding trace 180, the surrounding trace 180 couples the first connection terminal 140 and the second connection terminal 150 via the side surface 110c, and partially covers the first connection terminal 140 and the second connection terminal 150 along a second direction X2 opposite to the first direction X1.
It should be noted that, in the embodiment of the present invention, as shown in fig. 2, the surrounding trace 180 is connected to the first protective adhesive 160 and the second protective adhesive 170, but in other modifications according to the present invention, the surrounding trace 180 may be adjacent to the first protective adhesive 160 and the second protective adhesive 170 without contacting.
Referring to fig. 3 and fig. 5a to 5f, fig. 3 is a schematic flow chart of a method for manufacturing the display panel 100 according to an embodiment of the invention, and fig. 5a to 5f are schematic process flow charts of the method for manufacturing the display panel 100 according to the embodiment of the invention.
As shown in fig. 3, fig. 5a and fig. 5b, the preparation method may specifically include the following steps:
substrate providing step S101: providing a substrate 110, the substrate 110 having a first surface 110a and a second surface 110b opposite;
pixel circuit and driving circuit forming step S102: forming a pixel circuit 120 and a driving circuit 130 on the first surface 110a and the second surface 110b, respectively, the pixel circuit 120 being located in the display area a;
first and second connection terminal forming step S103: forming first and second connection terminals 140 and 150 located at the binding region B on the first and second surfaces 110a and 110B, respectively;
a first protective paste and a second protective paste forming step S104: first and second protection glues 160 and 170 are formed on the first and second surfaces 110a and 110B, respectively, and the first and second protection glues 160 and 170 partially cover the first and second connection terminals 140 and 150 along a first direction X1, respectively, and the first direction X1 is a direction in which the display area a points to the bonding area B.
It should be noted that, in the embodiment of the present invention, the first protective adhesive 160 and the second protective adhesive 170 are formed by using a transfer printing method, specifically, the curing temperature is 140 degrees celsius to 160 degrees celsius, the temperature resistance of the cured adhesive is less than 240 degrees celsius, and an exemplary thickness of the first protective adhesive 160 and the second protective adhesive 170 is 2 micrometers to 5 micrometers.
Further, please refer to fig. 4 for a schematic flow chart of a method for manufacturing the display panel 100 according to an embodiment of the present invention.
As shown in fig. 4 and 5c, after the step S104 of forming the first protective glue and the second protective glue, the method further includes:
a first protective film and second protective film attaching step S105: the first and second protection films P1 and P2 are attached on the first and second surfaces 110a and 110b, respectively.
In this embodiment, as shown in fig. 5c, the first protective film P1, the second protective film P2, the first protective glue 160, and the second protective glue 170 are aligned at the edge of the bonding region B. However, in other modifications according to the present invention, the first protective film P1 and the second protective film P2 may also cover the first protective film 160 and the second protective film 170, respectively, to further prevent the metal from extending to the display area a of the display panel 100 when the metal film is deposited subsequently, so as to ensure the reliability of signal transmission in the display panel 100.
Further, with continuing reference to fig. 4, fig. 5d and fig. 5e, as shown in fig. 4, fig. 5d and fig. 5e, after the step S105 of attaching the first protection film and the second protection film, the method further includes:
a metal film layer deposition step S106: depositing a metal film layer M on the first surface 110a, the second surface 110b and the side surface 110 c;
the first protective film and second protective film removing step S107: removing the first protective film P1 and the second protective film P2;
laser engraving step S108: the metal film layer M is laser engraved to form a surrounding trace 180, the surrounding trace 180 couples the first connection terminal 140 and the second connection terminal 150 via the side surface 110c, and partially covers the first connection terminal 140 and the second connection terminal 150 along a second direction X2 opposite to the first direction X1.
As shown in fig. 5f, after the laser engraving step S108 is completed, the following steps are required to be continued:
forming a protective adhesive 1 for protecting the surrounding wire 180;
transferring the plurality of light emitting devices 190 onto the pixel circuit 120;
forming an encapsulation layer 2 covering the plurality of light emitting devices 190;
a chip on film 4 is formed on the pad 3, and a printed circuit board 5 is soldered on the chip on film 4.
In light of the foregoing, the present invention provides a display panel 100 and a method for manufacturing the same, the display panel 100 having a display area a and a bonding area B adjacently disposed, the display panel 100 at least comprising a substrate 110, a pixel circuit 120, a driving circuit 130, a first connection terminal 140, a second connection terminal 150, a first protection paste 160 and a second protection paste 170, wherein the substrate 110 has a first surface 110a and a second surface 110B opposite to each other, the pixel circuit 120 and the driving circuit 130 are respectively disposed on the first surface 110a and the second surface 110B, the pixel circuit 120 is disposed in the display area a, the first connection terminal 140 and the second connection terminal 150 are disposed in the bonding area B and are respectively disposed on the first surface 110a and the second surface 110B, the first protection paste 160 and the second protection paste 170 are respectively disposed on the first surface 110a and the second surface 110B and partially cover the first connection terminal 140 and the second connection terminal 150 respectively along a first direction X1, the first direction X1 is a direction in which the display area a points to the bonding area B, and the reliability of signal transmission in the display panel 100 is ensured by adding the first protective adhesive 160 and the second protective adhesive 170 partially covering the first connection terminal 140 and the second connection terminal 150.
Referring to fig. 6, fig. 6 is a schematic structural diagram of a display device 500 according to an embodiment of the present invention, in which components and relative positions of the components can be visually seen.
As shown in fig. 6, the display device 500 includes a plurality of display panels 510, wherein the display panels 510 may be the display panels 100 as described in the above embodiments, and when the plurality of display panels 510 are tiled, the display areas a and the binding areas B of two adjacent display panels in the above first direction X1 are connected.
Referring to fig. 7, fig. 7 is a schematic structural diagram of a mobile terminal 400 according to an embodiment of the present invention, the display device 500 is applied to the mobile terminal 400, the mobile terminal 400 may be a smart phone or a tablet computer, and the components of the present invention and the relative position relationship of the components can be visually seen from the figure.
As shown in fig. 7, the mobile terminal 400 includes a processor 401, a memory 402. The processor 401 is electrically connected to the memory 402.
The processor 401 is a control center of the mobile terminal 400, connects various parts of the entire mobile terminal using various interfaces and lines, and performs various functions of the mobile terminal and processes data by running or loading an application program stored in the memory 402 and calling data stored in the memory 402, thereby integrally monitoring the mobile terminal.
Referring to fig. 8, fig. 8 is a detailed structure diagram of a mobile terminal 400 according to an embodiment of the present invention, where the mobile terminal 400 may be a smart phone or a tablet computer, and components and relative positions of the components of the present invention can be seen from the diagram.
Fig. 8 is a block diagram illustrating a specific structure of a mobile terminal 400 according to an embodiment of the present invention. As shown in fig. 8, the mobile terminal 400 may include Radio Frequency (RF) circuitry 410, memory 420 including one or more computer-readable storage media, an input unit 430, a display unit 440, a sensor 450, audio circuitry 460, a transmission module 470 (e.g., Wireless Fidelity (Wi-Fi)), a processor 480 including one or more processing cores, and a power supply 490. Those skilled in the art will appreciate that the mobile terminal architecture shown in fig. 8 is not intended to be limiting of mobile terminals 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 410 is used for receiving and transmitting electromagnetic waves, and implementing interconversion between the electromagnetic waves and electrical signals, thereby communicating with a communication network or other devices. RF circuitry 410 may include various existing circuit components for performing these functions, such as antennas, radio frequency transceivers, digital signal processors, encryption/decryption chips, Subscriber Identity Module (SIM) cards, memory, and so forth. The RF circuit 410 may communicate with various networks such as the internet, an intranet, a wireless network, or with other devices over a wireless network. The wireless network may comprise a cellular telephone network, a wireless local area network, or a metropolitan area network. The Wireless network may use various Communication standards, protocols, and technologies, including, but not limited to, Global System for Mobile Communication (GSM), Enhanced Data GSM Environment (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Wireless Fidelity (Wi-Fi) (e.g., Institute of Electrical and Electronics Engineers (IEEE) standard IEEE802.11 a, IEEE802.11 b, IEEE 802.2.access, and/or IEEE802.11 n), Voice over Internet Protocol (VoIP), world Wide Internet Protocol (Microwave Access for Wireless communications, Wi-Max), and any other suitable Protocol for short message Communication, and may even include those protocols that have not yet been developed.
The memory 420 may be configured to store software programs and modules, such as program instructions corresponding to the audio power amplifier control method, and the processor 480 executes various functional applications and data processing by operating the software programs and modules stored in the memory 420, that is, obtains the frequency of the information transmission signal transmitted by the mobile terminal 400. Generating interference signals, and the like. The memory 420 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 420 may further include memory located remotely from the processor 480, which may be connected to the mobile terminal 400 via a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The input unit 430 may be used to receive input numeric or character information and generate keyboard, mouse, joystick, optical or trackball signal inputs related to user settings and function control. In particular, the input unit 430 may include a touch-sensitive surface 431 as well as other input devices 432. The touch-sensitive surface 431, also referred to as a touch display screen or a touch pad, may collect touch operations by a user on or near the touch-sensitive surface 431 (e.g., operations by a user on or near the touch-sensitive surface 431 using any suitable object or attachment such as a finger, a stylus, etc.) and drive the corresponding connection device according to a predetermined program. Alternatively, the touch sensitive surface 431 may comprise both a touch detection device 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 480, and receives and executes commands sent from the processor 480. In addition, the touch-sensitive surface 431 may be implemented in various types, such as resistive, capacitive, infrared, and surface acoustic wave. The input unit 430 may include other input devices 432 in addition to the touch-sensitive surface 431. In particular, other input devices 432 may include, but are not limited to, one or more of a physical keyboard, function keys (such as volume control keys, switch keys, etc.), a trackball, a mouse, a joystick, and the like.
The display unit 440 may be used to display information input by or provided to the user and various graphical user interfaces of the mobile terminal 400, which may be made up of graphics, text, icons, video, and any combination thereof. The Display unit 440 may include a Display panel 441, and optionally, the Display panel 441 may be configured in the form of an LCD (Liquid Crystal Display), an OLED (Organic Light-Emitting Diode), or the like. Further, the touch-sensitive surface 431 may overlay the display panel 441, and when a touch operation is detected on or near the touch-sensitive surface 431, the touch operation is transmitted to the processor 480 to determine the type of the touch event, and then the processor 480 provides a corresponding visual output on the display panel 441 according to the type of the touch event. Although the touch-sensitive surface 431 and the display panel 441 are shown as two separate components to implement input and output functions, in some embodiments, the touch-sensitive surface 431 and the display panel 441 may be integrated to implement input and output functions.
The mobile terminal 400 may also include at least one sensor 450, such as a light sensor, a motion sensor, and other sensors. Specifically, the light sensor may include an ambient light sensor that may adjust the brightness of the display panel 441 according to the brightness of ambient light, and a proximity sensor that may generate an interrupt when the folder is closed or closed. 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 that may be configured on the mobile terminal 400, further description is omitted here.
The audio circuit 460, speaker 461, microphone 462 may provide an audio interface between a user and the mobile terminal 400. The audio circuit 460 may transmit the electrical signal converted from the received audio data to the speaker 461, and convert the electrical signal into a sound signal for output by the speaker 461; on the other hand, the microphone 462 converts the collected sound signal into an electric signal, which is received by the audio circuit 460 and converted into audio data, which is then processed by the audio data output processor 480, and then transmitted to, for example, another terminal via the RF circuit 410, or output to the memory 420 for further processing. The audio circuit 460 may also include an earbud jack to provide communication of a peripheral headset with the mobile terminal 400.
The mobile terminal 400, which can assist the user in receiving requests, sending information, etc., through the transmission module 470 (e.g., Wi-Fi module), provides the user with wireless broadband internet access. Although the transmission module 470 is shown in the drawing, it is understood that it does not belong to the essential constitution of the mobile terminal 400 and may be omitted entirely as needed within the scope not changing the essence of the invention.
The processor 480 is a control center of the mobile terminal 400, connects various parts of the entire mobile phone using various interfaces and lines, and performs various functions of the mobile terminal 400 and processes data by operating or executing software programs and/or modules stored in the memory 420 and calling data stored in the memory 420, thereby integrally monitoring the mobile terminal. Optionally, processor 480 may include one or more processing cores; in some embodiments, processor 480 may integrate an application processor, which primarily handles operating systems, user interfaces, applications, 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 processor 480.
The mobile terminal 400 also includes a power supply 490 (e.g., a battery) for powering the various components, which may be logically connected to the processor 480 via a power management system that may be configured to manage charging, discharging, and power consumption management in some embodiments. The power supply 490 may also include one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and any like components.
Although not shown, the mobile terminal 400 further includes a camera (e.g., a front camera, a rear camera, etc.), a bluetooth module, a flashlight, etc., which are not described in detail herein. Specifically, in the present embodiment, the display unit of the mobile terminal 400 is a touch screen display.
In addition to the above embodiments, the present invention may have other embodiments. All technical solutions formed by using equivalents or equivalent substitutions fall within the protection scope of the claims of the present invention.
In view of the foregoing, it is intended that the present invention cover the preferred embodiment of the invention, but not limited to the above-described preferred embodiment, and that various changes and modifications can be made by one skilled in the art without departing from the spirit and scope of the invention.
Claims (10)
1. A display panel having a display area and a binding area adjacently disposed, the display panel comprising at least:
a substrate having opposing first and second surfaces;
the pixel circuit is arranged on the first surface and is positioned in the display area;
the driving circuit is arranged on the second surface;
the first connecting terminal and the second connecting terminal are positioned in the binding area and are respectively arranged on the first surface and the second surface; and the number of the first and second groups,
first protection glue and second protection glue set up respectively in the first surface with the second surface, and respectively along first direction part cover first connecting terminal with second connecting terminal, first direction is the display area points to the direction in district is bound.
2. The display panel according to claim 1, wherein the display area and the bonding area have a boundary therebetween, and the first protective paste and the second protective paste extend to the boundary along a second direction opposite to the first direction, respectively.
3. The display panel according to claim 1, wherein the first connection terminal and the second connection terminal have a first length in a third direction perpendicular to the first direction, wherein the first protective paste and the second protective paste have a second length in the third direction, and wherein the first length is smaller than the second length.
4. The display panel according to claim 1, wherein the substrate further has a side surface connecting the first surface and the second surface, the display panel further comprising a surrounding trace coupling the first connection terminal and the second connection terminal via the side surface and partially covering the first connection terminal and the second connection terminal in a second direction opposite to the first direction.
5. The display panel according to claim 4, wherein the surrounding traces are connected to the first protective adhesive and the second protective adhesive.
6. A preparation method of a display panel, wherein the display panel is provided with a display area and a binding area which are adjacently arranged, the preparation method at least comprises the following steps:
providing a substrate having first and second opposing surfaces;
forming a pixel circuit and a driving circuit on the first surface and the second surface, respectively, the pixel circuit being located in the display region;
forming a first connection terminal and a second connection terminal on the first surface and the second surface, respectively, at the bonding region; and (c) a second step of,
forming a first protective adhesive and a second protective adhesive on the first surface and the second surface respectively, wherein the first protective adhesive and the second protective adhesive partially cover the first connecting terminal and the second connecting terminal along a first direction respectively, and the first direction is a direction in which the display area points to the binding area.
7. The method according to claim 6, wherein the first protective paste and the second protective paste are formed by means of transfer printing.
8. The method of claim 6, further comprising, after the steps of forming a first protective glue and a second protective glue on the first surface and the second surface, respectively:
attaching a first protective film and a second protective film on the first surface and the second surface, respectively.
9. The manufacturing method according to claim 8, wherein the first protective film and the second protective film cover the first protective film and the second protective film, respectively, or edges of the first protective film, the second protective film, the first protective film and the second protective film in the bonding region are aligned.
10. The manufacturing method according to claim 8, wherein the substrate further has a side surface connecting the first surface and the second surface, and further comprises, after the step of attaching the first protective film and the second protective film on the first surface and the second surface, respectively:
depositing a metal film layer on the first surface, the second surface and the side surface;
removing the first protective film and the second protective film; and the number of the first and second groups,
the metal film layer is subjected to laser engraving to form a surrounding wire, the surrounding wire enables the first connecting terminal and the second connecting terminal to be coupled through the side surface, and the first connecting terminal and the second connecting terminal are partially covered by the surrounding wire along a second direction opposite to the first direction.
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