CN117153052A - Display panel, display device and manufacturing method thereof - Google Patents

Display panel, display device and manufacturing method thereof Download PDF

Info

Publication number
CN117153052A
CN117153052A CN202311155037.7A CN202311155037A CN117153052A CN 117153052 A CN117153052 A CN 117153052A CN 202311155037 A CN202311155037 A CN 202311155037A CN 117153052 A CN117153052 A CN 117153052A
Authority
CN
China
Prior art keywords
panel
circuit
signal line
display panel
display
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202311155037.7A
Other languages
Chinese (zh)
Inventor
涂俊达
刘鑫
梁方荧
印炜凌
林富良
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
AU Optronics Kunshan Co Ltd
AU Optronics Corp
Original Assignee
AU Optronics Kunshan Co Ltd
AU Optronics Corp
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by AU Optronics Kunshan Co Ltd, AU Optronics Corp filed Critical AU Optronics Kunshan Co Ltd
Priority to CN202311155037.7A priority Critical patent/CN117153052A/en
Publication of CN117153052A publication Critical patent/CN117153052A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more printed circuits
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/46—Manufacturing multilayer circuits

Landscapes

  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Theoretical Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The invention provides a display panel, a display device and a manufacturing method thereof. The display panel comprises a first panel, a second panel and a first display unit, wherein the first panel is provided with a display area and a peripheral area which are adjacent to each other; the first circuit unit is arranged in the peripheral area; the second panel is arranged on the first panel in a back-to-back way; the first signal line group is arranged on the second panel; the second circuit unit is arranged on the second panel and is provided with a first electrostatic protection circuit; the first flexible circuit board is arranged between the first panel and the second panel, and the first circuit unit and the second circuit unit are electrically connected through the first flexible circuit board; the first electrostatic protection circuit is electrically connected to the first signal line group.

Description

Display panel, display device and manufacturing method thereof
Technical Field
The present invention relates to a display panel, a display device and a method for manufacturing the same, and more particularly, to a display panel with a narrow frame, a display device and a method for manufacturing the same.
Background
With the development of technology, display devices are widely used in many electronic products, such as mobile phones, tablet computers, watches, automobiles, etc.
In the conventional display panel, a Multiplexer (MUX), a test switching circuit (CT SW), an electrostatic discharge protection circuit (ESD), a region for connecting a flexible circuit board (FPC)/a driving IC, related wirings, and the like are generally provided in a lower frame region. In order to meet the requirements of users for display panels with narrow frames, the above-mentioned circuit size is generally reduced, and the wiring pitch is reduced, but the risk of reducing the antistatic capability is also brought.
Therefore, how to provide a display panel that can meet the requirements of a narrow frame and ensure the antistatic capability is one of the problems to be solved.
Disclosure of Invention
The embodiment of the invention provides a display panel, a display device and a manufacturing method thereof, which can ensure the antistatic capability of a circuit and improve the product quality on the premise of meeting the requirement of a narrow frame of the display panel.
The display panel comprises a first panel, a second panel and a display unit, wherein the first panel is provided with a display area and a peripheral area which are adjacent to each other; the first circuit unit is arranged in the peripheral area; the second panel is arranged on the first panel in a back-to-back way; the first signal line group is arranged on the second panel; the second circuit unit is arranged on the second panel and is provided with a first electrostatic protection circuit; the first flexible circuit board is arranged between the first panel and the second panel, and the first circuit unit and the second circuit unit are electrically connected through the first flexible circuit board; the first electrostatic protection circuit is electrically connected to the first signal line group.
The display panel described above, wherein the display panel further includes: the second electrostatic protection circuit is arranged on the first circuit unit; the first circuit unit outputs a second signal line group, and the second electrostatic protection circuit is electrically connected to the second signal line group.
The display panel, wherein the second signal line group includes a driving signal line.
The display panel described above, wherein the display panel further includes: the touch switch circuit is arranged on the second panel and outputs a third signal line group; the first electrostatic protection circuit is further electrically connected to the third signal line group.
The display panel described above, wherein the display panel further includes: the test switch circuit is arranged between the first flexible circuit board and the second electrostatic protection circuit.
The display panel described above, wherein the display panel further includes: the control unit is arranged on the second panel and is electrically connected to the first signal line group.
The display panel described above, wherein the display panel further includes: a second flexible circuit board; the control unit is arranged on the second flexible circuit board and is electrically connected to the first signal line group.
The display panel comprises a first panel and a second panel, wherein the first panel comprises an array substrate and a color film substrate, and the array substrate and the color film substrate are oppositely arranged.
The manufacturing method of the display panel according to one embodiment of the invention includes: providing a first motherboard; cutting the first motherboard to form at least one first panel and at least one second panel, wherein the first panel is provided with a display area and a peripheral area which are adjacent, a first circuit unit is arranged in the peripheral area, the second panel is provided with a first signal line group and a second circuit unit, the second circuit unit is provided with a first electrostatic protection circuit, and the first electrostatic protection circuit is electrically connected to the first signal line group; providing a first flexible circuit board and electrically connecting the first circuit unit and the second circuit unit respectively; and bending the first flexible circuit board so that the second panel is arranged on the first panel in a back direction.
The manufacturing method, wherein the method further comprises: providing a second motherboard, wherein the second motherboard is arranged corresponding to the first motherboard; and cutting the second motherboard.
The manufacturing method, wherein the first motherboard further comprises: the first panel is formed by cutting the first sub-motherboard and the second panel is formed by cutting the second sub-motherboard.
A display device according to an embodiment of the present invention includes: at least one display panel as described above.
The invention will now be described in more detail with reference to the drawings and specific examples, which are not intended to limit the invention thereto.
Drawings
Fig. 1 is a schematic view showing an unfolding structure of a display panel according to an embodiment of the invention.
Fig. 2 is a schematic diagram of a bending structure of the display panel shown in fig. 1.
Fig. 3-6 are schematic views showing an unfolding structure of a display panel according to other embodiments of the invention.
FIG. 7 is a flow chart of a method of manufacturing an embodiment of the invention.
Fig. 8-10 are schematic structural views of a first motherboard according to an embodiment of the present invention.
Wherein, the reference numerals:
100: display panel
101: first panel
102: first circuit unit
103: second panel
104: first signal line group
105: second circuit unit
106: first flexible circuit board
107: second signal line group
108: touch switch circuit
109: third signal line group
110: test switch circuit
111: control unit
112: second flexible circuit board
200: method of manufacture
201: first motherboard
2011: first sub-mother board
2012: a second sub-mother board
AA: display area
BA: peripheral region
ESD1: first electrostatic protection circuit
ESD2: second electrostatic protection circuit
S1-S4: step (a)
Detailed Description
The structural and operational principles of the present invention are described in detail below with reference to the accompanying drawings:
fig. 1 is a schematic view illustrating an unfolding structure of a display panel according to an embodiment of the invention, and fig. 2 is a schematic view illustrating a bending structure of the display panel shown in fig. 1. As shown in fig. 1-2, the display panel 100 of the present invention includes a first panel 101, a second panel 103, and a first flexible circuit board 106, wherein the first panel 101 and the second panel 103 are disposed opposite to each other, the first flexible circuit board 106 is disposed between the first panel 101 and the second panel 103, and the first panel 101 and the second panel 103 are electrically connected through the first flexible circuit board 106.
As shown in fig. 1, the first panel 101 has a display area AA and a peripheral area BA disposed adjacently, the peripheral area BA surrounds the display area AA, the peripheral area BA is provided with a first circuit unit 102, the first circuit unit 102 may be disposed in the peripheral area BA under the display area AA, and the first circuit unit 102 may include, for example, a multiplexer circuit (MUX) and a lead, and may also include other circuit units.
In an embodiment, the display panel 100 further includes a gate driving circuit (e.g., a GOA circuit), and the first circuit unit 102 (e.g., a portion of the leads) is electrically connected to the gate driving circuit for transmitting at least one driving signal. The gate driving circuit may be disposed in the peripheral area BA, for example, the peripheral area BA disposed at the left and/or right of the display area AA in fig. 1, and the gate driving circuit may also be disposed in the display area AA. The display area AA has a plurality of data signal lines (not shown) extending in a first direction and a plurality of gate signal lines (not shown) extending in a second direction, the first direction intersecting the second direction, e.g., being perpendicular to each other. The plurality of data signal lines are electrically connected to the first circuit unit 102 (e.g., a multiplexer circuit), the plurality of gate signal lines are electrically connected to a gate driving circuit, and the gate driving circuit is electrically connected to (part of the leads of) the first circuit unit 102. In another embodiment, the display area AA further has a plurality of touch signal lines (not shown), and the plurality of touch signal lines may extend along the first direction and be electrically connected to (other part of the leads of) the first circuit unit 102. The first circuit unit 102 may be formed of multiple conductive metal layers, and the multiplexer circuit, the leads, etc. may be conductive metal layers of different layers to transmit different signals respectively.
The second panel 103 is disposed back to back with the first panel 101, the second panel 103 is provided with a control unit 111 and a second circuit unit 105 which are electrically connected, and the first circuit unit 102 and the second circuit unit 105 are electrically connected through a first flexible circuit board 106, so that the first panel 101 is electrically connected with the second panel 103. In the present invention, the second panel 103 can be placed on a part of the circuit located at the lower side of the display area in the prior art, and the first flexible circuit board 106 is used to bend the second panel 103 to the rear of the display panel 100, so that the display panel 100 meets the requirement of a narrow frame.
The control unit 111 may generate a plurality of signals for the display panel 100 to work normally, the plurality of signals are electrically connected to the second circuit unit 105 through the first signal line set 104, and transferred to the first circuit unit 102 in the first panel 101 through the first flexible circuit board 106, and the first circuit unit 102 is electrically connected to the display area AA (and the gate driving circuit, etc.). The plurality of signals generated by the control unit 111 may be data signals, driving signals, etc., and the driving signals may include clock signals, touch signals, etc., which is not limited to the present invention. The data signals provided by the control unit 111 may be sequentially transmitted to the data signal lines in the display area AA through the second circuit unit 105 and the first circuit unit 102 (e.g., a multiplexer circuit), and the clock signals provided by the control unit 111 may be transmitted to the gate driving circuit through the second circuit unit 105 and the first circuit unit 102 (e.g., a portion of the leads) to generate a plurality of gate driving signals for transmission to the gate signal lines in the display area AA. The touch signal provided by the control unit 111 may be transmitted to each touch signal line in the display area AA through the second circuit unit 105 and the first circuit unit 102 (e.g. another portion of the leads).
In an embodiment, a test pad (testkey) may be further disposed on the second panel 103, and during the manufacturing process, the first panel 101 and the second panel 103 are fabricated on the same motherboard, so that the test pad on the second panel 103 can be used to simulate the electrical measurement or line width monitoring of the related film layer on the first panel 101; alternatively, identity information (e.g., chip ID, etc.) representing each display panel 100 is fabricated on the corresponding second panel 103 to further reduce wiring/components on the first panel 101.
In order to avoid the static influence of charge accumulation and the like on the signals generated by the control unit 111, in the present invention, the first ESD1 is disposed in the second circuit unit 105, and the signals generated by the control unit 111 are electrically connected to the first ESD1 through the first signal line set 104 respectively and then transmitted to the first circuit unit 102 through the first flexible circuit board 106. As a result, the plurality of signals generated by the control unit 111 can be effectively electrostatically protected by the first electrostatic protection circuit ESD1, and the display area AA, the gate driving circuit, and the circuits of the first circuit unit 102 in the first panel 101 can be prevented from being disabled (e.g., being damaged by a large current/large voltage) due to the influence of static electricity. In addition, in the present invention, since the first ESD protection circuit ESD1 is disposed on the second panel 103, the second panel 103 can provide enough space for disposing the first ESD protection circuit ESD1, in an embodiment, all signals of the control unit 111 can be connected to the first ESD protection circuit ESD1 and protected by static electricity, and the occupied area of the circuits in the peripheral area BA of the first panel 101 can be reduced, so as to meet the requirement of a narrow frame.
In this embodiment, the first ESD1 corresponding to the gate driving circuit (e.g. GOA circuit) and each signal line (e.g. data signal line) in the display area AA is disposed on the second panel 103, so that the signal generated by the control unit 111 is transmitted to the first circuit unit 102 on the first panel 101 through the first flexible circuit board 106 after passing through the first ESD1 on the second panel 103, and is transmitted to each signal line in the gate driving circuit and the display area AA by the first circuit unit 102, so that not only the circuit of the gate driving circuit is prevented from being damaged, but also each signal line in the first circuit unit 102 and the display area AA can be protected. In another embodiment, the corresponding electrostatic protection circuit may be provided according to the circuit to be protected, but not limited to this.
In an embodiment, the electrostatic protection circuit may include a plurality of switch units, a first input end and a second input end, where the switch units are connected to signal lines in the signal line set in a one-to-one correspondence manner, each switch unit includes a first switch module (e.g., TFT switch) and a second switch module (e.g., TFT switch), the first switch module has a first control end, a first end and a second end, the first control end is connected to the first end, and the second end is connected to the corresponding signal line; the second switch module is provided with a second control end, a third end and a fourth end, and the second control end is connected with the third end and is connected to the second end of the first switch module; the first input end is connected to the first end of the first switch module, and the second input end is connected to the fourth end of the second switch module; the first input end receives a first voltage signal, the second input end receives a second voltage signal, and the first voltage signal is smaller than the second voltage signal; when the signal line correspondingly connected has a positive voltage exceeding a first preset value, the second switch module is opened, and the positive voltage is discharged from the second input end; when the signal line correspondingly connected has a first negative voltage smaller than a second preset value, the first switch module is opened, and the negative voltage is leaked from the first input end. The structure of the electrostatic protection circuit is not limited thereto.
Fig. 3-6 are schematic views showing an unfolding structure of a display panel according to other embodiments of the invention.
In the embodiment shown in fig. 1, the first ESD protection circuit ESD1 is disposed in the second circuit unit 105, and the first ESD protection circuit ESD1 is electrically connected to the plurality of signals generated by the control unit 111, and the disposition of the ESD protection circuit in the display panel 100 is not limited thereto. In another embodiment, as shown in fig. 3, a second ESD2 is further disposed in the first circuit unit 102 of the first panel 101, the first circuit unit 102 outputs a second signal line group 107, the second ESD2 is electrically connected to the second signal line group 107 through, for example, a part of the wires in the first circuit unit 102, the second signal line group 107 includes a driving signal line to electrically connect to the gate driving circuit, and the driving signal line transmits, for example, a clock signal to the gate driving circuit. After the partial signal generated by the control unit 111 is transmitted to the second ESD2, the partial signal is transmitted to the gate driving circuit via the second signal line set 107, so that the second ESD2 can protect the gate driving circuit. The second electrostatic protection circuit ESD2 is closer to the gate driving circuit, and the protection effect is better. At this time, the first ESD1 may be electrically connected to other circuits (such as the data signal line and/or the touch signal line in the display area AA) except the gate driving circuit to protect the same, so that the first ESD1 on the second panel 103 and the second ESD2 on the first panel 101 cooperate to protect each circuit structure on the first panel 101, and since only the ESD corresponding to the gate driving circuit is disposed on the first panel 10l, the space is small, which meets the narrow frame requirement.
At present, the display panel also has a touch function, so that a touch switch circuit is arranged on the display panel. The touch switch circuit and the control unit are generally disposed in the peripheral area at two opposite sides of the display area, for example, the control unit is disposed at the lower side of the display area, the touch switch circuit is disposed at the upper side of the display area, and the driving signals/control signals output by the control unit can be transmitted to the touch switch circuit via signal lines disposed at the left and right sides of the display area. In the embodiment shown in fig. 4, the display panel 100 is further provided with a touch switch circuit 108, unlike the prior art, the touch switch circuit 108 is not disposed on the upper side of the display area AA on the first panel 101, but is disposed on the second panel 103 instead, and the touch switch circuit 108 may be disposed in the second circuit unit 105 or may be disposed separately in other areas on the second panel 103, which is not limited by the present invention. Since the peripheral area BA on the first panel 101 is no longer required to be provided with a touch switch circuit, the bezel width of the display panel 100 can be reduced.
In an embodiment, the touch switch circuit 108 is located between the control unit 111 and the first ESD protection circuit ESD1, and may be formed of a first metal layer (M1), a second metal layer (M2), a third metal layer (M3), and so on. The display panel 100 further includes a third signal line set 109, and two ends of the third signal line set 109 are electrically connected to the touch switch circuit 108 and the first ESD protection circuit ESD1, respectively. After the touch signal generated by the control unit 111 is transmitted to the touch switch circuit 108, the touch switch circuit 108 outputs the touch signal via, for example, the third metal layer (M3), and transmits the touch signal to the first ESD1 via the third signal line group 109, and then transmits the touch signal to the display area AA (a plurality of touch signal lines in the display area). Meanwhile, the non-touch signal (e.g., a data signal, a clock signal, etc.) generated by the control unit 111 may pass through the touch switch circuit 108 (via the first metal layer and/or the second metal layer insulated from the touch switch circuit 108) in an insulating manner or pass around the touch switch circuit 108 and then be transferred to the first ESD1, the first flexible circuit board 106 and then reach the gate driving circuit, the data signal line in the display area AA, etc. Accordingly, the touch switch circuit 108 is disposed on the second panel 103 to reduce the frame width of the first panel 101, and the first electrostatic protection circuit ESD1 on the second panel 103 can be used to perform electrostatic protection on the second panel 103 and related circuits on the first panel 101.
In one embodiment, the first panel 101 may need to be tested prior to Bonding (Bonding) the first panel 101 to the second panel 103, the first flexible circuit board 106, etc. In the embodiment shown in fig. 5, the display panel 100 is further provided with a test switch circuit 110, and the test switch circuit 110 may include a test circuit and a connection pad connected thereto. The test switch circuit 110 is disposed on the first panel 101 and between the first flexible circuit board 106 and the second ESD2, and the test switch circuit 110 can be electrically connected to the display area AA, for example, through the first circuit unit 102. The external test signal can be transmitted to the display area AA via the connection pad and the test switch circuit 110 to test the display area AA. After the test is completed, the connection between the test switch circuit 110 and the display area AA may be cut off; alternatively, in the normal display stage, the test switch circuit 110 is controlled so that no unnecessary electric signal is outputted. It should be noted that fig. 5 is only an example, and the position of the test switch circuit 110 is not limited thereto.
As shown in fig. 1, the control unit 111 may be a driving chip (IC), and a plurality of connection pads (pads) may be disposed on the second panel 103 for binding (bonding) the driving chip. As shown in fig. 1 and fig. 6, unlike the embodiment shown in fig. 1, in the embodiment shown in fig. 6, the control unit 111 of the display panel 100 is not directly bound to the second panel 103, but is disposed on the second flexible circuit board 112, and the second flexible circuit board 112 is bound to the second panel 103 and electrically connected to the second signal line set 104, so that the control unit 111 is electrically connected to the first signal line set 104.
In the present invention, the thickness of the second panel 103 is not more than one half of the thickness of the first panel 101. The first panel 101 includes, for example, a Thin Film Transistor (TFT) array substrate and a Color Film (CF) substrate, and the array substrate is disposed opposite to the color film substrate. In an embodiment, the materials of the array substrate, the color film substrate and the second panel are the same, for example, glass substrates are used, and the control unit 111 can be directly bound to the second panel 103. In another embodiment, the materials of the array substrate, the color Film substrate and the second panel may be different, for example, the array substrate and the color Film substrate are glass substrates, the second panel 103 is a PCB, the control unit 111 may be bound to the second panel 103 through the second flexible circuit board 112, and the control unit 111 and the second flexible circuit board 112 may be COF (chip on Film).
The display panel 100 shown in fig. 1, 3 to 5 may further include another flexible circuit board (not shown) bound to the other side of the second panel 103 opposite to the first flexible circuit board 106 and configured to receive external electrical signals, so that the control unit 111 generates the aforementioned signals.
It should be noted that the circuit arrangement manner in the embodiments shown in fig. 1 and fig. 3 to fig. 6 is not exclusive, and the circuit arrangement manner may be combined according to the need, which is not limited to the present invention.
Fig. 7 is a flow chart illustrating a manufacturing method according to an embodiment of the present invention, and fig. 8 to 10 are schematic structural diagrams of a first motherboard according to an embodiment of the present invention. As shown in fig. 1 to 10, the manufacturing method 200 of the display panel 100 of the present invention includes the steps of:
s1, providing a first motherboard.
First, a first mother board 201 is provided, and a plurality of first panels 101 and second panels 103 arranged in an array are formed on the first mother board 201.
The first panel 101 has a display area AA and a peripheral area BA, wherein pixel units are formed in the display area AA, and corresponding first circuit units 102 are formed in the peripheral area BA; the second panel 103 has a first signal line set 104 and a second circuit unit 105 formed thereon, and the second circuit unit 105 has a first ESD1, and the first ESD1 is electrically connected to the first signal line set 104.
S2, cutting the first mother board.
The first mother board 201 is cut to form at least one first panel 101 and at least one second panel 103, respectively.
S3, providing a first flexible circuit board.
The first flexible circuit board 106 is provided, and the first flexible circuit board 106 is electrically connected to the first circuit unit 102 and the second circuit unit 105, respectively.
S4, bending the first flexible circuit board.
The first flexible circuit board 106 is bent, so that the second panel 103 is disposed opposite to the first panel 101.
Of course, in the embodiment shown in fig. 8-9, the first panel 101 and the second panel 103 are formed in the same motherboard 201 at the same time, and the manner shown in fig. 10 may be adopted, in which the first panel 101 is formed on the first motherboard daughter board 2011, the second panel 103 is formed on the second motherboard daughter board 2012, the first motherboard daughter board 2011 is cut to form at least one first panel 101, and the second motherboard daughter board 2012 is cut to form at least one second panel 103.
In the present invention, the first panel 101 includes a Thin Film Transistor (TFT) array substrate and a color film substrate. Step S1 further comprises: a second motherboard is provided. Forming a plurality of color film substrates arranged in an array on a second motherboard; the second motherboard is disposed opposite to the first motherboard.
Step S2 further comprises: the second motherboard is cut to form at least one first panel.
The invention also provides a display device which comprises at least one display panel.
According to the embodiment of the invention, the first panel and the second panel are electrically connected through the flexible circuit board, the second panel is arranged on the back surface of the first panel through bending the flexible circuit board, and the second panel is provided with the static protection circuit and other circuit elements, so that the static characteristics of all signals can be ensured, the requirement of a narrow frame can be met, and the arrangement of the circuit elements is more flexible due to the existence of the second panel.
Of course, the present invention is capable of other various embodiments and its several details are capable of modification and variation in light of the present invention, as will be apparent to those skilled in the art, without departing from the spirit and scope of the invention as defined in the appended claims.

Claims (11)

1. A display panel, comprising:
a first panel having a display area and a peripheral area adjacent to each other;
the first circuit unit is arranged in the peripheral area;
the second panel is arranged on the first panel in a back-to-back way;
the first signal line group is arranged on the second panel;
the second circuit unit is arranged on the second panel and is provided with a first electrostatic protection circuit; and
the first flexible circuit board is arranged between the first panel and the second panel, and the first circuit unit and the second circuit unit are electrically connected through the first flexible circuit board; wherein the method comprises the steps of
The first electrostatic protection circuit is electrically connected to the first signal line group.
2. The display panel of claim 1, wherein the display panel further comprises:
the second electrostatic protection circuit is arranged on the first circuit unit; wherein the method comprises the steps of
The first circuit unit outputs a second signal line group, and the second electrostatic protection circuit is electrically connected to the second signal line group.
3. The display panel of claim 1, wherein the display panel further comprises:
the touch switch circuit is arranged on the second panel and outputs a third signal line group; wherein the method comprises the steps of
The first electrostatic protection circuit is further electrically connected to the third signal line group.
4. The display panel of claim 1, wherein the display panel further comprises:
the test switch circuit is arranged between the first flexible circuit board and the second electrostatic protection circuit.
5. The display panel of claim 1, wherein the display panel further comprises:
the control unit is arranged on the second panel and is electrically connected to the first signal line group.
6. The display panel of claim 1, wherein the display panel further comprises:
a second flexible circuit board;
the control unit is arranged on the second flexible circuit board and is electrically connected to the first signal line group.
7. The display panel of claim 1, wherein the first panel comprises an array substrate and a color film substrate, the array substrate being disposed opposite the color film substrate.
8. A method of manufacturing a display panel, the method comprising:
providing a first motherboard;
cutting the first motherboard to form at least one first panel and at least one second panel, wherein the first panel is provided with a display area and a peripheral area which are adjacent, a first circuit unit is arranged in the peripheral area, the second panel is provided with a first signal line group and a second circuit unit, the second circuit unit is provided with a first electrostatic protection circuit, and the first electrostatic protection circuit is electrically connected to the first signal line group;
providing a first flexible circuit board and electrically connecting the first circuit unit and the second circuit unit respectively;
and bending the first flexible circuit board so that the second panel is arranged on the first panel in a back direction.
9. The method of manufacturing of claim 8, wherein the method further comprises: providing a second motherboard, wherein the second motherboard is arranged corresponding to the first motherboard; and
cutting the second motherboard.
10. The method of manufacturing of claim 8, wherein the first motherboard further comprises:
the first panel is formed by cutting the first sub-motherboard and the second panel is formed by cutting the second sub-motherboard.
11. A display device, comprising:
at least one display panel according to any one of claims 1-7.
CN202311155037.7A 2023-09-08 2023-09-08 Display panel, display device and manufacturing method thereof Pending CN117153052A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202311155037.7A CN117153052A (en) 2023-09-08 2023-09-08 Display panel, display device and manufacturing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202311155037.7A CN117153052A (en) 2023-09-08 2023-09-08 Display panel, display device and manufacturing method thereof

Publications (1)

Publication Number Publication Date
CN117153052A true CN117153052A (en) 2023-12-01

Family

ID=88905874

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202311155037.7A Pending CN117153052A (en) 2023-09-08 2023-09-08 Display panel, display device and manufacturing method thereof

Country Status (1)

Country Link
CN (1) CN117153052A (en)

Similar Documents

Publication Publication Date Title
CN107039467B (en) Array substrate, display panel and display device
KR100723492B1 (en) Display driver integrated circuit device, film package and module including them
US7518691B2 (en) Electrooptical device, mounting structure, and electronic apparatus having wiring formed on and protruding from a base material to directly under an input bump on a semiconductor device
CN111919164B (en) Display panel with narrow lower frame and electronic equipment
US6819370B2 (en) Liquid crystal display panel including two PGB for outputting signals to the same conductive wires and a repair line
CN111725265B (en) Display module and display device
CN108681116B (en) Display panel, detection jig and detection control method
US7253808B2 (en) Touch screen system and display device using the same
WO2022170703A1 (en) Shorting bar, display panel and display apparatus
JP2002090424A (en) Matrix array board
CN111435207B (en) Display device and electronic equipment
US20070081117A1 (en) Display device and a circuit thereon
CN110320690B (en) Display device
CN117153052A (en) Display panel, display device and manufacturing method thereof
WO2022252112A1 (en) Display substrate and display device
CN112071192B (en) Display panel and splicing display panel
CN108594548B (en) Liquid crystal panel fan-out area and liquid crystal panel
TWI323378B (en) Pad structure and a display substrate and a liquid crystal display device comprising the same
CN219393333U (en) Display panel, display device and display equipment
US20240028157A1 (en) Touch display panel and electronic device
CN117572695A (en) Display panel, display device and to-be-cut display panel
JP2001274551A (en) Multilayer printed-circuit board and electro-optical apparatus using it as well as electronic apparatus and liquid crystal device
CN108153068B (en) Touch display device and manufacturing method thereof
CN116386502A (en) Display panel and display device
CN116825045A (en) Display panel and display device

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination