CN113611728A - Display panel and display device - Google Patents

Display panel and display device Download PDF

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Publication number
CN113611728A
CN113611728A CN202110880559.8A CN202110880559A CN113611728A CN 113611728 A CN113611728 A CN 113611728A CN 202110880559 A CN202110880559 A CN 202110880559A CN 113611728 A CN113611728 A CN 113611728A
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China
Prior art keywords
coils
terminal
circuit board
terminals
display panel
Prior art date
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Granted
Application number
CN202110880559.8A
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Chinese (zh)
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CN113611728B (en
Inventor
高瀚斐
吕博嘉
杨阳
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Wuhan Tianma Microelectronics Co Ltd
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Shanghai Tianma AM OLED Co Ltd
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Priority to CN202110880559.8A priority Critical patent/CN113611728B/en
Publication of CN113611728A publication Critical patent/CN113611728A/en
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Publication of CN113611728B publication Critical patent/CN113611728B/en
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • H10K59/131—Interconnections, e.g. wiring lines or terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L23/00—Details of semiconductor or other solid state devices
    • H01L23/58—Structural electrical arrangements for semiconductor devices not otherwise provided for, e.g. in combination with batteries
    • H01L23/64—Impedance arrangements
    • H01L23/66—High-frequency adaptations
    • 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
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/181—Printed circuits structurally associated with non-printed electric components associated with surface mounted components
    • 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
    • H05K1/18—Printed circuits structurally associated with non-printed electric components
    • H05K1/189—Printed circuits structurally associated with non-printed electric components characterised by the use of a flexible or folded printed circuit
    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/17—Passive-matrix OLED displays
    • H10K59/179—Interconnections, e.g. wiring lines or terminals
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2223/00—Details relating to semiconductor or other solid state devices covered by the group H01L23/00
    • H01L2223/58—Structural electrical arrangements for semiconductor devices not otherwise provided for
    • H01L2223/64—Impedance arrangements
    • H01L2223/66—High-frequency adaptations
    • H01L2223/6661—High-frequency adaptations for passive devices
    • H01L2223/6677—High-frequency adaptations for passive devices for antenna, e.g. antenna included within housing of semiconductor device
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01L—SEMICONDUCTOR DEVICES NOT COVERED BY CLASS H10
    • H01L2223/00—Details relating to semiconductor or other solid state devices covered by the group H01L23/00
    • H01L2223/58—Structural electrical arrangements for semiconductor devices not otherwise provided for
    • H01L2223/64—Impedance arrangements
    • H01L2223/66—High-frequency adaptations
    • H01L2223/6683—High-frequency adaptations for monolithic microwave integrated circuit [MMIC]
    • 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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10128—Display

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  • Engineering & Computer Science (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Physics & Mathematics (AREA)
  • Condensed Matter Physics & Semiconductors (AREA)
  • General Physics & Mathematics (AREA)
  • Computer Hardware Design (AREA)
  • Power Engineering (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

The application provides a display panel and display device, display panel can include base plate and circuit board, the base plate includes the display area and centers on the non-display area of display area, the non-display area is including binding the district, the circuit board is through binding district and base plate connection, the non-display area is provided with a plurality of coils, every coil extends two to binding the district and draws forth the end, can be provided with two wiring ends on the circuit board, at least one end of drawing forth is connected to every wiring end, two wiring ends are used for connecting processing circuit, that is to say, a plurality of coils can all have the end of drawing forth, and wiring end on the base plate can coupling part draw forth end and whole end of drawing forth, thereby realize the selection to the coil, make the coil of in-service use have the controllability, and can deal with multiple circuit board, satisfy multiple demand, can be applied to more scenes.

Description

Display panel and display device
Technical Field
The present invention relates to the field of display, and in particular, to a display panel and a display device.
Background
In the display panel, the substrate (panel) may include a display region and a non-display region surrounding the display region, the non-display region may be provided with traces, for example, coils (coils) surrounding the display region, the non-display region may further include a bonding region, the substrate and the circuit board may be connected together through the bonding region, and the traces of the non-display region may be connected with the circuit board through the traces of the bonding region. At present, the wiring in the non-display area has poor adjustability after the design is finished, only can meet single requirements, and cannot be suitable for more scenes.
Disclosure of Invention
In view of the above, an object of the present invention is to provide a display panel and a display device, in which the same display panel can be applied to a plurality of circuit boards and can be applied to more scenes.
The embodiment of the application provides a display panel, which comprises a substrate and a circuit board;
the substrate comprises a display area and a non-display area surrounding the display area, the non-display area comprises a binding area, and the circuit board is connected with the substrate through the binding area; the non-display area is provided with a plurality of coils, and each coil extends two leading-out ends towards the binding area;
the circuit board is provided with two wiring terminals, each wiring terminal is connected with at least one leading-out terminal, and the two wiring terminals are used for being connected with a processing circuit.
Optionally, each terminal is connected with one terminal, and the terminals connected with the two terminals belong to the same coil.
Optionally, each wiring end is connected with one leading-out end, the leading-out ends connected with the two wiring ends belong to different coils, a first connecting wire is further arranged on the circuit board, and the different coils are connected in series through the first connecting wire.
Optionally, each terminal is connected with n leading-out terminals, the leading-out terminals connected with the two terminals belong to n coils, the leading-out terminals connected with the same terminal belong to different coils, and n is an integer greater than 1.
Optionally, a second connection line is further disposed on the circuit board, and the second connection line is used for connecting leading-out ends of different coils to connect the plurality of coils in parallel.
Optionally, the number of the leading-out terminals connected with the two wiring terminals is different; the circuit board is also provided with a first connecting wire and/or a second connecting wire; the first connecting wire is used for connecting the leading-out ends of different coils to be connected with the coils in series, and the second connecting wire is used for connecting the leading-out ends of the different coils to be connected with the coils in parallel.
Optionally, the resistances of the plurality of coils are not all the same.
Optionally, the plurality of coils have a cross-sectional area that is not exactly the same, and/or a material that is not exactly the same, and/or a number of turns that is not exactly the same.
Optionally, the coil is used to implement near field communication, and the processing circuit is a near field communication circuit.
Optionally, the terminal and the lead-out terminal are longitudinally stacked.
Optionally, the plurality of coils are arranged in a longitudinally stacked arrangement.
Optionally, the circuit board is a flexible circuit board FPC or a chip on film COF.
Optionally, a bending region is further disposed between the substrate binding region and the display region, and each coil spans the bending region to extend two leading-out ends to the binding region.
The embodiment of the application also provides a display device which comprises the display panel.
The embodiment of the application provides a display panel and display device, display panel can include base plate and circuit board, the base plate includes the display area and centers on the non-display area of display area, the non-display area is including binding the district, the circuit board is through binding district and base plate connection, the non-display area is provided with a plurality of coils, every coil extends two and draws forth the end to binding the district, can be provided with two wiring ends on the circuit board, at least one end of drawing forth is connected to every wiring end, two wiring ends are used for connecting the processing circuit, that is to say, a plurality of coils can all have the end of drawing forth, and wiring end on the base plate can connect part and draw forth end and whole end of drawing forth, thereby realize the selection to the coil, make the coil of in-service use have the controllability, and can deal with multiple circuit board, satisfy multiple demand, can be applied to more scenes.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic view illustrating a substrate provided in an embodiment of the present application;
fig. 2 is a schematic diagram illustrating a circuit board provided in an embodiment of the present application;
fig. 3 is a schematic structural diagram of a display panel provided in an embodiment of the present application;
fig. 4 is a schematic view illustrating another substrate provided by an embodiment of the present application;
fig. 5, 7, 9, 11, 13, 15, 17, 19, 21, 23 show schematic views of other circuit boards provided by embodiments of the present application;
fig. 6, fig. 8, fig. 10, fig. 12, fig. 14, fig. 16, fig. 18, fig. 20, fig. 22, and fig. 24 are schematic structural diagrams illustrating other display panels provided in an embodiment of the present application;
fig. 25 is a schematic plan view illustrating a display device according to an embodiment of the present disclosure.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present application more comprehensible, embodiments accompanying the present application are described in detail below with reference to the accompanying drawings.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways than those described herein, and it will be apparent to those of ordinary skill in the art that the present application is not limited by the specific embodiments disclosed below.
Next, the present application will be described in detail with reference to the drawings, and in the detailed description of the embodiments of the present application, the cross-sectional views illustrating the structure of the device are not enlarged partially according to the general scale for convenience of illustration, and the drawings are only examples, which should not limit the scope of the protection of the present application. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.
In the existing display panel, a wire can be arranged in a non-display area of a substrate, for example, a coil surrounding the display area is arranged, the wire in the non-display area is designed based on an application scene, the requirement of the scene can be met, and the wire is matched with a circuit board, for example, the length or the number of turns of the coil is modulated according to the requirement of a client side for matching debugging. The problem that the adjustability of the base plate is poor after the design is completed is solved, the base plate after the design is completed can only be matched with one or more similar circuit boards, only single requirements can be met, and the base plate can not be suitable for more scenes.
Based on this, the embodiment of the application provides a display panel and display device, display panel can include base plate and circuit board, the base plate includes the display area and surrounds the non-display area of display area, the non-display area is including binding the district, the circuit board passes through binding district and base plate connection, the non-display area is provided with a plurality of coils, every coil extends two to binding the district and draws forth the end, can be provided with two wiring ends on the circuit board, at least one is drawn forth to every wiring end connection, two wiring ends are used for connecting processing circuit, that is to say, a plurality of coils can all have the end of drawing forth, and wiring end on the base plate can connect part and draw forth end and whole end of drawing forth, thereby realize the selection to the coil, make the coil of actual use have the controllability, and can deal with multiple circuit board, satisfy multiple demand, can be applied to more scenes.
For a better understanding of the technical solutions and effects of the present application, specific embodiments will be described in detail below with reference to the accompanying drawings.
In an embodiment of the present application, a display panel may include a substrate 100 and a circuit board 200, where fig. 1 is referred to as a schematic diagram of a substrate provided in an embodiment of the present application, fig. 2 is referred to as a schematic diagram of a circuit board provided in an embodiment of the present application, and fig. 3 is referred to as a schematic diagram of a structure of a display panel provided in an embodiment of the present application, and the display panel may include the substrate 100 in fig. 1 and the circuit board 200 in fig. 2.
In this embodiment, referring to fig. 1, the substrate 100 may include a display area 1001 and a non-display area surrounding the display area, the display area 1001 is provided with display elements for displaying contents to be displayed, the display elements may be, for example, Organic Light-Emitting diodes (OLEDs), and the non-display area is used for setting a circuit structure for driving a display panel to display and a binding area 1002 for connecting with a circuit board. Specifically, the non-display area may include a frame area at the periphery of the display area, the frame area may surround the display area, the non-display area may further include a binding area 1002 at the periphery of the frame area, the binding area 1002 may be disposed at one side of the frame area, as shown in fig. 1, the binding area may also be disposed at multiple sides of the frame area, and no illustration is given here.
The non-display area can be provided with a plurality of coils, the plurality of coils can surround the display area 1001, the number of turns of each coil can be one turn, and the number of turns of each coil can also be a plurality of turns, each coil can extend two leading-out ends to the binding area 1002, and the two leading-out ends are two ends of each coil. Referring to fig. 2, the plurality of coils may include a first coil 101, a second coil 102, and a third coil 103, the first coil 101 extending a first lead out 101A and a second lead out 101B toward the bonding zone 1002, the second coil 102 extending a third lead out 102A and a fourth lead out 102B toward the bonding zone 1002, the third coil 103 extending a fifth lead out 103A and a sixth lead out 103B toward the bonding zone 1002.
The coil can be used for realizing Near Field Communication (NFC), and the coil can also be referred to as an NFC coil at this time, and the NFC coil is disposed on the substrate 100, so that the stacking thickness of the display device is reduced, the display device is closer to an interactive device for Near Field Communication, and the Near Field Communication effect is better.
The resistance values of the plurality of coils are not completely the same, so that the respective coils have functions which are not completely identical, thereby realizing different selections in functions through selection of the coils. Specifically, the plurality of coils may have non-identical cross-sectional areas so as to have non-identical resistance values; the plurality of coils may also have materials that are not identical, so that they have resistance values that are not identical; in some scenarios, the plurality of coils may also have non-identical turns so as to have non-identical lengths, and thus non-identical resistances.
The plurality of coils may be disposed in a frame region surrounding the display region 1001, and the plurality of coils may be disposed in a tiled manner or may be disposed in a vertically stacked manner, so that an area of the frame region may be reduced when the plurality of coils are disposed in a vertically stacked manner. An insulating layer may be provided between the different coils.
The lengths of the leading-out ends of the coils in the binding areas can be the same, or not the same. Referring to fig. 1, the leads of the plurality of coils are the same length in the binding region 1002; referring to fig. 4, there is shown a schematic view of another substrate according to an embodiment of the present disclosure, in which the lengths of the terminals of the plurality of coils in the bonding region 1002 are not exactly the same, specifically, the length of the second terminal 101B is the shortest, the lengths of the first terminal 101A and the fourth terminal 102B are the same and are greater than the length of the second terminal 101B, the length of the third terminal 102A and the sixth terminal 103B are the same and are greater than the lengths of the first terminal 101A and the third terminal 102B, and the length of the fifth terminal 103A is greater than the length of the third terminal 102A and the length of the sixth terminal 103B.
A bending region (not shown) may be further disposed between the bonding region 1002 and the display region 1001 of the substrate 100, each coil crosses the bending region and extends two leading-out ends to the bonding region 1002, and the bonding region 1002 may be bent to a non-display surface of the display panel through the bending region, so that a narrow frame is achieved, the area of the display region is increased, and a high screen ratio is achieved. The circuit board 200 may be connected to the substrate 100 through the bonding region 1002, and when the bending region is disposed between the bonding region 1002 and the display region 1001, the circuit board 200 may be fixed to the back of the display region after being connected to the substrate 100.
The circuit board may be provided with two terminals 201, 202, the two terminals 201, 202 being used for connecting a processing circuit, which is a near field communication circuit when the coil is an NFC coil. Referring to fig. 2, the two terminals include a first terminal 201 and a second terminal 202. The two terminals 201, 202 are used for connecting with the terminals, and each terminal can be connected with at least one terminal, so that the coil is connected with the processing circuit, different circuit boards 200 can have terminals at different positions, and the terminals can be connected with different coils when being connected with the substrate 100, so that the substrate 100 meets the requirements of different circuit boards 200, and the cost problem caused by redesigning the substrate 100 due to different coil requirements is avoided. The Circuit board 200 may be a Chip On Film (COF) or a Flexible Printed Circuit (FPC).
As a possible implementation, each terminal may be connected to one terminal, and the terminals connected to the two terminals belong to the same coil, that is, one of the coils may be selected to be connected to the circuit to connect to the processing circuit, and different coils may be selected for different processing circuits, and different coils have different resistances, so that functions with different requirements may be implemented. For example, referring to fig. 3, the first terminal 201 is connected to the third terminal 102A, the second terminal 202 is connected to the fourth terminal 102B, and the second coil 102 is connected to the processing circuit.
In addition, a second connection wire 204 can be further disposed on the circuit board 200, and the second connection wire 204 is used for connecting the leading-out terminals of different coils to connect a plurality of coils in parallel, that is, other coils can be connected to the coil connected to the processing circuit in parallel, so that a plurality of coils connected in parallel can be simultaneously selected, and further requirements can be met. The second connection line 204 may be connected in parallel to the coils arranged adjacently, or connected in parallel to the coils arranged non-adjacently, only an insulating layer is provided between the coils arranged adjacently without other coils, and the second connection line 204 may be a straight line, or may be a curved line or a broken line.
For example, referring to fig. 5 and fig. 6, where fig. 5 is a schematic diagram of a circuit board in an embodiment of the present application, fig. 6 is a schematic diagram of a display panel including the circuit board 200 in fig. 5 and the substrate 100 in fig. 4, where a first terminal 201 is connected to a fifth terminal 103A, a second terminal 202 is connected to a sixth terminal 103B, a second connection line 204 is connected between the third terminal 102A and the fifth terminal 103A, and a second connection line 204 is connected between the fourth terminal 102B and the sixth terminal 103B, so that the second coil 102 and the third coil 103 are connected in parallel and then connected to a circuit to connect a processing circuit, and an equivalent coil of the connected circuit can be represented by 102/103.
For example, referring to fig. 7 and 8, wherein 7 is a schematic diagram of a circuit board in the embodiment of the present application, figure 8 is a schematic view of a display panel including the circuit board 200 of figure 7 and the substrate 100 of figure 4, wherein the first terminal 201 is connected with the fifth leading-out terminal 103A, the second terminal 202 is connected with the sixth leading-out terminal 103B, a second connecting wire 204 is connected between the third leading-out terminal 102A and the fifth leading-out terminal 103A, a second connecting wire 204 is connected between the fourth leading-out terminal 102B and the sixth leading-out terminal 103B, a second connecting wire 204 is connected between the first leading-out terminal 101A and the third leading-out terminal 102A, a second connecting wire 204 is connected between the second leading-out terminal 101B and the fourth leading-out terminal 102B, therefore, the first coil 101, the second coil 102 and the third coil 103 are connected in parallel and then connected into a circuit to be connected with a processing circuit, and equivalent coils connected into the circuit can be represented by 101/(102/(103).
In addition, still be provided with first connecting wire 203 on the circuit board, first connecting wire 203 is used for connecting different coils in order to establish ties a plurality of coils, and a plurality of coils after establishing ties can utilize the second connecting wire to connect in parallel to the coil that inserts processing circuit on, can select a plurality of coils of establishing ties and parallelly connected simultaneously like this to satisfy more demands, first connecting wire 203 can be the straight line, also can be for curve or broken line.
For example, referring to fig. 9 and 10, wherein fig. 9 is a schematic diagram of a circuit board in an embodiment of the present application, figure 10 is a schematic view of a display panel including the circuit board 200 of figure 9 and the substrate 100 of figure 4, wherein the first terminal 201 is connected with the fifth leading-out terminal 103A, the second terminal 202 is connected with the sixth leading-out terminal 103B, a second connecting wire 204 is connected between the third leading-out terminal 102A and the fifth leading-out terminal 103A, a first connecting wire 203 is connected between the fourth leading-out terminal 102B and the second leading-out terminal 101B, a second connecting wire 204 is connected between the first leading-out terminal 101A and the sixth leading-out terminal 103B, that is, the first coil 101 and the second coil 102 are connected in series by the first connection line 203, and the plurality of coils connected in series are connected in parallel to the third coil 103, then, the circuit is accessed so as to connect the processing circuit, and the equivalent coil of the accessed circuit can be represented by (101+ 102)/(103).
As another possible embodiment, each connection terminal may be connected to one terminal, and the terminals connected to the two terminals belong to different coils, and the circuit board is further provided with a first connection line through which the different coils are connected in series. Specifically, two leading-out ends of each coil in the coils connected in series are not connected with two wiring terminals at the same time, and the two leading-out ends of each coil can be connected with one wiring terminal and one first connection line respectively or connected with two first connection lines respectively. That is, a plurality of coils can be connected in series and connected to a circuit to be processed, and coils with more possible resistance values can be obtained by connecting different coils in series, so that functions with different requirements can be realized.
For example, referring to fig. 11 and 12, fig. 11 is a schematic diagram of a circuit board in an embodiment of the present application, and fig. 12 is a schematic diagram of a display panel including the circuit board 200 in fig. 11 and the substrate 100 in fig. 4, in which a first terminal 201 is connected to a fifth terminal 103A, a second terminal 202 is connected to a third terminal 102A, and a fourth terminal 102B and a sixth terminal 103B are connected by a first connection line 203, so that the second coil 102 and the third coil 103 are connected in series and then connected into a circuit to connect a processing circuit, and an equivalent coil of the connected circuit can be represented by 102+ 103.
For example, referring to fig. 13 and 14, fig. 13 is a schematic diagram of a circuit board in an embodiment of the present application, and fig. 14 is a schematic diagram of a display panel including the circuit board 200 in fig. 13 and the substrate 100 in fig. 4, in which a first terminal 201 is connected to a fifth terminal 103A, a second terminal 202 is connected to a second terminal 101B, a third terminal 102A and a sixth terminal 103B are connected by a first connection line 203, and the first terminal 101A and the fourth terminal 102B are connected by a first connection line 203, so that the first coil 101, the second coil 102, and the third coil 103 are connected in series and then connected to a circuit to connect a processing circuit, and an equivalent coil of the connected circuit can be represented by 101+102+ 103.
In addition, the circuit board can be further provided with a second connecting wire 204, the second connecting wire 204 is used for connecting leading-out ends of different coils so as to be connected with the coils in parallel, namely, other coils can be connected to the coils connected in series connected with the access processing circuit in parallel, or connected to one coil connected with the access processing circuit in parallel, and therefore multiple connection relations of series connection and parallel connection can be achieved, and more requirements can be met. The second connection line 204 may be connected in parallel to the adjacent coils, or may be connected in parallel to the non-adjacent coils. Of course, a plurality of coils connected in series may be connected in parallel to a plurality of coils connected in series connected to the processing circuit as one coil combination.
For example, referring to fig. 15 and 16, fig. 15 is a schematic diagram of a circuit board in an embodiment of the present application, and fig. 16 is a schematic diagram of a display panel including the circuit board 200 in fig. 15 and the substrate 100 in fig. 4, in which a first terminal 201 is connected to a fifth terminal 103A, a second terminal 202 is connected to the first terminal 101A, the fifth terminal 103A and the third terminal 102A are connected by a second connection line 204, a second terminal 101B and a fourth terminal 102B are connected by a first connection line 203, a fourth terminal 102B and a sixth terminal 103B are connected by the first connection line 203, the second coil 102 and the third coil 103 are connected in parallel, the second coil 102 and the first coil 101 are connected in series, and then a circuit is connected to connect a processing circuit, and an equivalent coil of the connected circuit can be represented by 101+ (102/103).
As a further possible embodiment, n terminals may be connected to each terminal, and the terminals connected to two terminals belong to n coils, the terminals connected to the same terminal belong to different coils, n being an integer greater than 1, that is, one terminal of the coils is connected to one terminal and the other terminal is connected to the other terminal, that is, the coils are connected in parallel, so as to satisfy more requirements. Among them, the n terminals connected to the same terminal are generally adjacent terminals.
For example, referring to fig. 17 and 18, fig. 17 is a schematic diagram of a circuit board in an embodiment of the present application, fig. 18 is a schematic diagram of a display panel including the circuit board 200 in fig. 17 and the substrate 100 in fig. 1, in which a first terminal 201 is connected to a third terminal 102A and a fifth terminal 103A, a second terminal 202 is connected to a fourth terminal 102B and a sixth terminal 103B, the second coil 102 and the third coil 103 are connected in parallel and then connected to a circuit so as to connect to a processing circuit, and an equivalent coil connected to the circuit can be represented by 102/103.
For example, referring to fig. 19 and 20, fig. 19 is a schematic diagram of a circuit board in an embodiment of the present application, fig. 20 is a schematic diagram of a display panel including the circuit board 200 in fig. 19 and the substrate 100 in fig. 1, in which a first terminal 201 is connected to a first terminal 101A, a third terminal 102A and a fifth terminal 103A, a second terminal 202 is connected to a second terminal 101B, a fourth terminal 102B and a sixth terminal 103B, the first coil 101, the second coil 102 and the third coil 103 are connected in parallel and then connected to a circuit so as to connect to a processing circuit, and an equivalent coil connected to the circuit can be represented by 101/102/103.
In addition, a second connecting wire 204 can be further arranged on the circuit board, the second connecting wire 204 is used for connecting leading-out ends of different coils so as to connect the coils in parallel, namely, other coils can be connected to the coils connected into the processing circuit in parallel, and therefore the coils connected in parallel can be selected simultaneously, and more requirements can be met. The second connecting line can be connected with the adjacent coils in parallel or connected with the non-adjacent coils in parallel.
For example, referring to fig. 21 and 22, fig. 21 is a schematic diagram of a circuit board in an embodiment of the present application, fig. 22 is a schematic diagram of a display panel including the circuit board 200 in fig. 21 and the substrate 100 in fig. 4, in which a first terminal 201 is connected to a third terminal 102A and a fifth terminal 103A, a second terminal 202 is connected to a fourth terminal 102B and a sixth terminal 103B, the first terminal 101A and the third terminal 102A are connected by a second connection line 204, the second terminal 101B and the fourth terminal 102B are connected by a second connection line 204, the first coil 101, the second coil 102 and the third coil 103 are connected in parallel and then connected to a circuit to connect a processing circuit, and an equivalent coil of the connected circuit can be represented by 101/102/103.
In addition, still be provided with first connecting wire on the circuit board, first connecting wire is used for connecting different coils in order to establish ties a plurality of coils, and a plurality of coils after establishing ties can utilize the second connecting wire to connect in parallel to the coil that inserts processing circuit on, can select a plurality of coils of establishing ties and parallelly connected like this simultaneously to satisfy more demands. And are not illustrated here.
As still another possible embodiment, the number of terminals connected to the two terminals may be different, the circuit board may be further provided with a first connection line for connecting the terminals of different coils to connect the plurality of coils in series, and the circuit board may be further provided with a second connection line for connecting the terminals of different coils to connect the plurality of coils in parallel.
For example, referring to fig. 23 and 24, fig. 23 is a schematic diagram of a circuit board in an embodiment of the present application, fig. 24 is a schematic diagram of a display panel including the circuit board 200 in fig. 23 and the substrate 100 in fig. 4, in which a first terminal 201 is connected to a third terminal 102A and a fifth terminal 103A, a second terminal 202 is connected to a sixth terminal 103B, the first terminal 101A and the sixth terminal 103B are connected by a second connection line 204, and the second terminal 101B and the fourth terminal 102B are connected by a first connection line 203, that is, the first coil 101 and the second coil 102 are connected in series by the first connection line 203, and a plurality of coils connected in series are connected in parallel to the third coil 103, and then connected to a circuit to connect a processing circuit, and an equivalent coil of the connected circuit can be represented by (101+ 102)/(103).
It should be noted that the first connection line 203 and the second connection line 204 are used for connecting different coils, and are distinguished based on connecting different coils in series and connecting different coils in parallel, and the material and the size of the two are determined according to actual conditions.
Generally, the terminals are disposed in the bonding region 1002 of the substrate 100, i.e., disposed on the substrate 100, and the circuit board 200 is disposed on the bonding region 1002 to be connected to the substrate 100 in the longitudinal direction, so that the terminals of the bonding region 1002 and the terminals on the circuit board 200 can be stacked in the longitudinal direction and electrically connected by direct contact or through an interconnection structure. Similarly, the terminals of the bonding region 1002 and the first connection lines 203 on the circuit board 200 may be vertically stacked and electrically connected by direct contact or by an interconnection structure; the terminals of the bonding region 1002 and the second connection lines 204 of the circuit board 200 may also be disposed longitudinally and electrically connected by direct contact or via an interconnect structure.
The embodiment of the application provides a display panel, display panel can include base plate and circuit board, the base plate includes the display area and centers on the non-display area of display area, the non-display area is including binding the district, the circuit board is through binding district and base plate connection, the non-display area is provided with a plurality of coils, every coil extends two and draws forth the end to binding the district, can be provided with two wiring ends on the circuit board, at least one end of drawing forth is connected to every wiring end, two wiring ends are used for connecting processing circuit, that is to say, a plurality of coils can all have the end of drawing forth, and wiring end on the base plate can connect the part and draw forth end and whole end of drawing forth, thereby realize the selection to the coil, make the coil of in-service use have the controllability, and can deal with multiple circuit board, satisfy multiple demand, can be applied to more scenes.
The embodiment of the present application further provides a display device, which includes the display panel described in the above embodiment.
Fig. 25 is a schematic plan view of a display device according to an embodiment of the present disclosure. As can be seen from the figure, the display device 1000 includes the display panel 10, and the display panel 10 is the display panel 10 described in any of the embodiments. The display device 1000 provided in the embodiment of the present application may be a display device having a display function, such as a mobile phone, a computer, a television, and a vehicle-mounted display device, and the embodiment of the present application is not particularly limited. The display device 1000 provided in the embodiment of the present application has the beneficial effects of the display panel 10 provided in the embodiment of the present application, and specific reference may be specifically made to the specific description of the display panel in the above embodiment, which is not repeated herein.
The embodiments in the present specification are described in a progressive manner, each embodiment focuses on differences from other embodiments, and the same and similar parts among the embodiments are referred to each other.
The foregoing is merely a preferred embodiment of the present application and, although the present application discloses the foregoing preferred embodiments, the present application is not limited thereto. Those skilled in the art can now make numerous possible variations and modifications to the disclosed embodiments, or modify equivalent embodiments, using the methods and techniques disclosed above, without departing from the scope of the claimed embodiments. Therefore, any simple modification, equivalent change and modification made to the above embodiments according to the technical essence of the present application still fall within the protection scope of the technical solution of the present application without departing from the content of the technical solution of the present application.

Claims (14)

1. A display panel is characterized by comprising a substrate and a circuit board;
the substrate comprises a display area and a non-display area surrounding the display area, the non-display area comprises a binding area, and the circuit board is connected with the substrate through the binding area; the non-display area is provided with a plurality of coils, and each coil extends two leading-out ends towards the binding area;
the circuit board is provided with two wiring terminals, each wiring terminal is connected with at least one leading-out terminal, and the two wiring terminals are used for being connected with a processing circuit.
2. The display panel of claim 1, wherein each terminal is connected to one terminal, and the terminals connected to both terminals belong to the same coil.
3. A display device as claimed in claim 1, characterized in that one terminal is connected to each terminal, and the terminals connected to both terminals belong to different coils, and in that a first connection line is provided on the circuit board, through which the different coils are connected in series.
4. A display panel as claimed in claim 1 characterized in that n terminals are connected to each terminal, and the terminals connected to two terminals belong to n coils, the terminals connected to the same terminal belong to different coils, n being an integer larger than 1.
5. The display panel according to any one of claims 1 to 4, wherein a second connection line is further disposed on the circuit board, and the second connection line is used for connecting the leading terminals of different coils to connect a plurality of coils in parallel.
6. The display panel according to claim 1, wherein the number of terminals to which the two terminals are connected is different; the circuit board is also provided with a first connecting wire and/or a second connecting wire; the first connecting wire is used for connecting the leading-out ends of different coils to be connected with the coils in series, and the second connecting wire is used for connecting the leading-out ends of the different coils to be connected with the coils in parallel.
7. The display panel according to any one of claims 1 to 4, wherein resistances of the plurality of coils are not completely the same.
8. The display panel according to claim 7, wherein the plurality of coils have not exactly the same cross-sectional area, and/or not exactly the same material, and/or not exactly the same number of turns.
9. The display panel according to any one of claims 1 to 4, wherein the coil is used for near field communication, and the processing circuit is a near field communication circuit.
10. The display panel according to any one of claims 1 to 4, wherein the terminal and the lead-out terminal are arranged in a longitudinally stacked manner.
11. The display panel according to any one of claims 1 to 4, wherein the plurality of coils are arranged in a longitudinally stacked arrangement.
12. The display panel according to any one of claims 1 to 4, wherein the circuit board is a flexible circuit board (FPC) or a Chip On Film (COF).
13. The display panel according to any one of claims 1 to 4, wherein a bending region is further disposed between the substrate bonding region and the display region, and each of the coils extends beyond the bending region to form two terminals.
14. A display device characterized by comprising the display panel according to any one of claims 1 to 13.
CN202110880559.8A 2021-08-02 2021-08-02 Display panel and display device Active CN113611728B (en)

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