CN116204083B - Array substrate and touch display panel - Google Patents
Array substrate and touch display panel Download PDFInfo
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- CN116204083B CN116204083B CN202310480372.8A CN202310480372A CN116204083B CN 116204083 B CN116204083 B CN 116204083B CN 202310480372 A CN202310480372 A CN 202310480372A CN 116204083 B CN116204083 B CN 116204083B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/04164—Connections between sensors and controllers, e.g. routing lines between electrodes and connection pads
Abstract
The application provides an array substrate and a touch display panel, wherein the touch display panel comprises an array substrate, and the array substrate comprises a glass substrate, a common electrode layer, a pixel electrode layer, a first control circuit and a second control circuit; the common electrode layer and the pixel electrode layer are respectively formed on the glass substrate; the pixel electrode layer comprises a first display area and a second display area, the first display area comprises a plurality of first pixel electrodes, each first pixel electrode is connected to the second control circuit through a data line, and each first pixel electrode is arranged around the second display area; the common electrode layer is divided into a plurality of touch electrodes, each touch electrode is connected to the first control circuit through a touch line, and the first control circuit is connected with each touch line in the second display area. The application can reduce the manufacturing cost of the touch display panel, ensure the touch sensitivity and is also suitable for narrow frame design.
Description
Technical Field
The application belongs to the technical field of display, and particularly relates to an array substrate and a touch display panel.
Background
With the rapid development of display technology, touch screens (Touch Screen Panel) have gradually spread throughout people's lives. The touch screen mounting structure composition can be divided into: a surface-covered touch screen (On Cell Touch Panel) and an in-cell touch screen (In Cell Touch Panel) are covered. The touch electrode of the embedded touch screen is embedded in the liquid crystal display screen, so that the thickness of the panel can be reduced, the manufacturing cost of the touch screen can be reduced, and the touch screen is light in weight and low in power consumption.
For the embedded touch screen, on the basis of display control, touch control is added, so that the number of channels of the control chip of the embedded touch screen is increased, the occupied space of the control chip is large, and the embedded touch screen is difficult to realize narrow frame design. Meanwhile, the channel for realizing touch control can be changed along with the actual product size and the actual resolution requirement, so that the control chip cannot be customized, and the design and manufacturing cost of the control chip are increased.
Disclosure of Invention
The embodiment of the application aims to provide an array substrate and a touch display panel, which are used for solving the technical problems that an embedded touch screen in the prior art is difficult to realize narrow frame design and high in manufacturing cost.
In order to achieve the above purpose, the application adopts the following technical scheme: an array substrate is provided, which comprises a glass substrate, a common electrode layer, a pixel electrode layer, a first control circuit and a second control circuit; the common electrode layer and the pixel electrode layer are respectively formed on the glass substrate and are mutually insulated; the pixel electrode layer comprises a first display area and a second display area, the first display area comprises a plurality of first pixel electrodes, each first pixel electrode is connected to the second control circuit through a data line, and each first pixel electrode is arranged around the second display area; the common electrode layer is divided into a plurality of touch electrodes, each touch electrode is connected to the first control circuit through a touch line, and the first control circuit is connected with each touch line in the second display area.
In one possible design, the first control circuit includes a first flexible substrate circuit and a first control chip, one end of the first flexible substrate circuit is connected with the glass substrate through a connection board, and the other end of the first flexible substrate circuit is connected with a total control circuit of the touch display panel; the first control chip is connected to the first flexible substrate circuit;
the joint plate is a transparent substrate.
In one possible design, the second display area includes a plurality of second pixel electrodes, and each of the first pixel electrodes is disposed below and on the left and right sides of each of the second pixel electrodes;
a plurality of first metal pins are formed on the top of the front surface of the glass substrate, and each first metal pin is arranged at the gap or the edge of each second pixel electrode; each touch control line is connected with each first metal pin in a one-to-one correspondence manner; one end of the first control circuit is electrically connected with each first metal pin, and the other end of the first control circuit is used for being connected with the total control circuit.
In one possible design, the back surface of the glass substrate is formed with a plurality of second metal pins, and the number of the second metal pins is the same as the number of the first metal pins; the second metal pins are electrically connected with the first metal pins through flexible connection structures; one end of the first control circuit is connected with each second metal pin, and the other end of the first control circuit is connected with the total control circuit.
In one possible design, the spacing between two adjacent second metal pins is smaller than the spacing between two adjacent first metal pins.
In one possible design, the flexible connection structure includes a plurality of wires, one end of the wires being connected to the first metal pins, and the other end of the wires being connected to the second metal pins.
In one possible design, the flexible connection structure is an FPC, one end of the FPC is bonded to each of the first metal pins, and the other end of the FPC is bonded to each of the second metal pins.
In one possible design, the array substrate further includes a first metal layer and a second metal layer;
the first metal layer comprises a plurality of touch lines, and each touch line is electrically connected to each touch electrode in a one-to-one correspondence manner;
the second metal layer comprises a plurality of data lines, and each data line is electrically connected to each first pixel electrode in a one-to-one correspondence manner;
wherein the first metal layer and the second metal layer are arranged on the same layer;
alternatively, the first metal layer is provided in a different layer from the second metal layer.
In one possible design, the second control circuit includes a second flexible substrate circuit and a second control chip;
the second control chip is connected to the glass substrate, each data line is connected to the second control chip, one end of the second flexible substrate circuit is connected with the second control chip, and the other end of the second flexible substrate circuit is connected with the total control circuit;
or one end of the second flexible substrate circuit is connected with the glass substrate, the other end of the second flexible substrate circuit is connected with the total control circuit, and the second control chip is connected to the second flexible substrate circuit.
The array substrate provided by the application has the beneficial effects that: according to the array substrate provided by the embodiment of the application, the touch control lines and the data lines are respectively connected to the first control circuit and the second control circuit which are positioned at two opposite sides of the array substrate, namely, the first control circuit and the second control circuit respectively provide control signals for the touch control lines and the data lines, so that on one hand, the first control circuit can set a touch control channel according to the actual product size and the actual resolution requirement, the limitation of the screen size and the resolution is avoided, and higher touch control sensitivity can be achieved; on the other hand, the number of display control channels of the second control circuit is also certain, the display control channels are not limited by the size and the resolution of a screen, and the display control channels are not limited by whether touch control needs exist or not, namely the second control circuit can be universal, so that the design and manufacturing cost of the second control circuit is greatly reduced. In addition, when the first control circuit and the second control circuit are respectively arranged on the upper side and the lower side of the array substrate, the space of the second display area above the array substrate can be fully utilized, meanwhile, the number of channels of the second control circuit can be greatly reduced, the position of the second control circuit occupying the lower frame is reduced, and the narrow frame design of the touch display panel is facilitated.
On the other hand, the application also provides a touch display panel which comprises the array substrate.
The touch display panel provided by the application has the beneficial effects that: according to the touch display panel provided by the embodiment of the application, the array substrate is arranged, so that the touch display panel is low in manufacturing cost and high in touch sensitivity, and can be suitable for narrow-frame design.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are needed in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic diagram illustrating the connection of touch lines of an array substrate in the prior art;
FIG. 2 is a schematic diagram illustrating a connection of touch lines with a second display area in the prior art;
fig. 3 is a schematic connection diagram of touch lines in an array substrate according to an embodiment of the present application;
FIG. 4 is a schematic diagram illustrating connection of data lines in an array substrate according to an embodiment of the present application;
FIG. 5 is a schematic view of the structure of the second display area in FIG. 3 with a joint plate;
FIG. 6 is a schematic diagram of the structure of the second display area and the first metal pins in FIG. 3;
FIG. 7 is a schematic diagram of a front surface of the glass substrate of FIG. 3 connected to a first control circuit;
FIG. 8 is a schematic diagram of the structure of the top of the front surface of the glass substrate in FIG. 3 when the back surface of the glass substrate is connected to the first control circuit;
FIG. 9 is a schematic diagram of the top of the back surface of the glass substrate of FIG. 3 when the back surface is connected to the first control circuit;
FIG. 10 is a schematic diagram of a structure in which a second metal pin is disposed on top of the back surface of the glass substrate in FIG. 9;
fig. 11 is a schematic structural diagram of a touch display panel according to an embodiment of the application.
Wherein, each reference sign in the figure:
1. an array substrate; 11. a glass substrate; 12. a common electrode layer; 121. a touch electrode; 13. a pixel electrode layer; 131. a first display area; 1311. a first pixel electrode; 132. a second display area; 1321. a second pixel electrode; 14. a first control circuit; 141. a first flexible substrate circuit; 1411. a joint plate; 1412. a flexible board; 142. a first control chip; 15. a second control circuit; 151. a second control chip; 16. a touch control line; 17. a first metal pin; 18. a second metal pin; 19. a wire; 20. a data line; 2. a color film substrate; 3. a liquid crystal layer; 4. a backlight; 100. and a total control chip.
Detailed Description
In order to make the technical problems, technical schemes and beneficial effects to be solved more clear, the application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the application.
It will be understood that when an element is referred to as being "mounted" or "disposed" on another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.
It is to be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like are merely for convenience in describing and simplifying the description based on the orientation or positional relationship shown in the drawings, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus are not to be construed as limiting the application.
Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present application, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.
As to the background art, for the in-cell touch screen, touch control is added on the basis of display control, so that the number of channels of the control chip of the in-cell touch screen is increased, the occupied space of the control chip is large, and the in-cell touch screen is difficult to realize narrow frame design. Meanwhile, the channel for realizing touch control can be changed along with the actual product size and the actual resolution requirement, so that the control chip cannot be customized, and the design and manufacturing cost of the control chip are increased.
For example, for a typical in-cell touch screen product, a common driving technology is TDDI, i.e., touch and display driver integration (Touch and Display Driver Integration), which integrates a touch chip and a display chip into a single overall control chip. As shown in fig. 1, for example, the touch electrode 121 is connected to the overall control chip 100 through the touch line 16, and the first pixel electrode 1311 is connected to the overall control chip 100 through the data line. In addition, referring to fig. 2, for the in-cell touch screen product including the second display area 132, the touch electrodes 121 outside the second display area 132 are also connected to the overall control chip 100 through the touch lines 16, respectively.
In actual display, a part of the display time is taken as the touch acquisition time to perform touch identification. The total control chip used by the TDDI needs to be specially customized according to the size, resolution and the number of touch electrodes, and is generally customized and dedicated, and the total control chip has long customization time, no universality and high cost. In addition, the channel for realizing the touch control can be changed along with the actual product size and the actual resolution requirement, so that the total control chip cannot be used universally, and needs to be carefully customized according to different products and resolution requirements, thereby leading to high design and manufacturing costs.
On the other hand, when the touch control and the display drive are integrated together, the touch control lines and the data lines are required to be connected into the whole control chip positioned on the lower frame, the total number of the signal lines is very large, and in the actual drive design, the space occupied by the signal lines is very large, so that the narrow frame cannot be realized. And when the space is limited, an additional metal layer is needed to make the overlapping design of the signal lines so as to save space, thus at least 2 layers of photomasks are additionally added, and the punching difficulty is also increased. In addition, when the actual control channel is limited, the touch sensitivity is also affected.
In order to solve the above-mentioned problems, the present application provides an array substrate 1, and the array substrate 1 provided in the embodiment of the present application will now be described.
Referring to fig. 3 and 4, the array substrate 1 includes a glass substrate 11, a common electrode layer 12, a pixel electrode layer 13, a first control circuit 14 and a second control circuit 15; the common electrode layer 12 and the pixel electrode layer 13 are respectively formed on the glass substrate 11 and are arranged in an insulating manner; the pixel electrode layer 13 includes a first display area 131 and a second display area 132, the first display area 131 includes a plurality of first pixel electrodes 1311, each first pixel electrode 1311 is connected to the second control circuit 15 through a data line 20, and each first pixel electrode 1311 is disposed around the second display area 132; the common electrode layer 12 is divided into a plurality of touch electrodes 121, each touch electrode 121 is connected to the first control circuit 14 through a touch line 16, and the first control circuit 14 is connected to each touch line 16 in the second display area 132.
The first display area 131 is disposed around the second display area 132, the size of the second display area 132 is far smaller than that of the first display area 131, and the second display area 132 may be elliptical or racetrack. The first display area 131 is used for normal display of the touch display panel, the second display area 132 is used for dynamic display of the touch display panel, for example, when a call or a short message is notified, the second display area 132 changes its display form so that a user can intuitively receive the information, and in addition, the second display area 132 can also be used for displaying electric quantity and switching to a music display lamp of a background.
In a direction perpendicular to the array substrate 1, the projection of the touch electrode 121 covers the projections of the plurality of first pixel electrodes 1311. Therefore, the touch electrode 121 can be used as a common electrode and can be multiplexed as the touch electrode 121. The first control circuit 14 is connected to each touch electrode 121, and the first control circuit 14 is configured to provide a touch signal to the touch electrode 121 so that the touch electrode 121 serves as the touch electrode 121, and the first control circuit 14 is also configured to provide a common voltage to the touch electrode 121 so that the touch electrode 121 serves as the common electrode.
The second control circuits 15 are respectively connected to the first pixel electrodes 1311, and the second control circuits 15 are configured to supply data signals to the data lines 20, and the second control circuits 15 are configured to supply scan signals to the gate lines.
According to the array substrate 1 provided by the embodiment of the application, the touch control lines 16 and the data lines 20 are respectively connected to the first control circuit 14 and the second control circuit 15 which are positioned at two opposite sides of the array substrate 1, namely, control signals are respectively provided for the touch control lines 16 and the data lines 20 through the first control circuit 14 and the second control circuit 15, so that on one hand, the first control circuit 14 can set a touch control channel according to the actual product size and the actual resolution requirement, and the touch control sensitivity can be higher without being limited by the screen size and the resolution; on the other hand, the number of display control channels of the second control circuit 15 is also certain, and the display control channels are not limited by the screen size and resolution, and are not limited by whether touch control needs exist, that is, the second control circuit 15 can be universal, so that the design and manufacturing cost of the second control circuit 15 is greatly reduced. In addition, when the first control circuit 14 and the second control circuit 15 are respectively disposed on the upper and lower sides of the array substrate 1, the space of the second display area 132 above the array substrate 1 can be fully utilized, and meanwhile, the number of channels of the second control circuit 15 can be greatly reduced, so that the position of the second control circuit 15 occupying the lower frame is reduced, and the narrow frame design of the touch display panel is facilitated.
In one embodiment, referring to fig. 3 and 4, the second display area 132 and the second control circuit 15 are respectively disposed on opposite sides of the glass substrate 11. For convenience of description, the present application sets the upper, lower, left, and right in fig. 2 to 4 as four orientations of the upper, lower, left, and right of the array substrate 1. In practice, when the user erects the touch display panel for use, the up-down-left-right direction in fig. 3 is the up-down-left-right direction of the touch display panel. In order to facilitate connection between the touch display panel and the overall control circuit, the second control circuit 15 is generally disposed below the array substrate 1, so that the second display area 132 and the second control circuit 15 in the present application are disposed on opposite sides of the array substrate 1, specifically, the first control circuit 14 and the second control circuit 15 are disposed on the lower side and the upper side of the array substrate 1, respectively. It should be understood that, in other embodiments of the present application, when the space on the left and right sides of the array substrate 1 is sufficiently large, the first control circuit 14 and the second control circuit 15 may be disposed on the left and right sides of the array substrate 1, which is not limited only.
In one embodiment, as shown in fig. 4, the first display area 131 is disposed around the lower side and the left and right sides of the second display area 132, that is, the second display area 132 is located above the first display area 131 and near the middle position, so that the layout design of the first control circuit 14 can be performed from above the second display area 132 without displaying and touching the upper side of the second display area 132.
In addition, since the second display area 132 only needs a simple graphic display, which does not need to reach the display pixels of the first display area 131, the second pixel electrode 1321 in the second display area 132 generally does not need to have the same pixel size as the first pixel electrode 1311, and the pixel of the second pixel electrode 1321 can be generally designed to be larger, so that the space between the second pixel electrodes 1321 will be more, and the available space will be more.
Specifically, referring to fig. 5 and 6, the second display area 132 includes a plurality of second pixel electrodes 1321, and each of the first pixel electrodes 1311 is disposed below and on the left and right sides of each of the second pixel electrodes 1321; a plurality of first metal pins 17 are formed on the glass substrate 11, each first metal pin 17 being provided in a gap or an edge of each second pixel electrode 1321; each touch control line 16 is connected with each first metal pin 17 in a one-to-one correspondence manner; one end of the first control circuit 14 is electrically connected to each first metal pin 17, and the other end of the first control circuit 14 is used for being connected to a total control circuit of the touch display device.
Specifically, the first metal pins 17 are sequentially disposed between the second pixel electrodes 1321 at intervals along the left-right direction of the glass substrate 11, and the first metal pins 17 may be formed by depositing a metal material on the front surface of the glass substrate 11. The first control circuits 14 are respectively and correspondingly connected with the first metal pins 17, and the first metal pins 17 are joints for realizing connection of the touch control lines 16 and the first control circuits 14.
In this embodiment, by disposing the first metal pins 17 between or at the edge of the second pixel electrodes 1321, the first metal pins 17 do not affect the display of the second pixel electrodes 1321, the first metal pins 17 can form a one-to-one electrical connection relationship with the touch lines 16, and the first control circuit 14 can also form a communication connection with the touch lines 16 through the first metal pins 17, so that the touch lines 16 can be electrically connected to the overall control circuit, and simultaneously can also provide touch signals and voltage signals to the touch lines 16.
When the touch lines 16 are connected, the touch lines 16 located at the left and right sides of the second display area 132 can be wound above the second display area 132 and then connected with the corresponding first metal pins 17. The touch line 16 under the second display area 132 may extend directly under the second display area 132 to form a connection with the corresponding first metal pin 17. Thus, the touch lines 16 are prevented from being crowded.
In one embodiment, the first control circuit 14 is designed as a flip-chip thin film package structure. Specifically, referring to fig. 7, the first control circuit 14 includes a first flexible substrate circuit 141 and a first control chip 142, one end of the first flexible substrate circuit 141 is correspondingly connected to the glass substrate 11, and the other end of the first flexible substrate circuit 141 is connected to the overall control circuit; the first control chip 142 is bonded to the first flexible substrate 141. The first flexible substrate circuit 141 includes a joint plate 1411 and a flexible plate 1412, wherein the joint plate 1411 is joined to the glass substrate 11, one end of the flexible plate 1412 is connected to the joint plate 1411, and the first control chip 142 is joined to the flexible plate 1412.
Wherein the joint plate 1411 is a transparent substrate. In general, the end portion of the first flexible substrate circuit 141 is press-connected to the glass substrate 11 through the hard bonding plate 1411, and in order to set the bonding plate 1411 without affecting the display of the second display area 132, the bonding plate 1411 is generally made of a transparent material.
In this embodiment, the first control circuit 14 is designed as a flip-chip film package structure, so that not only the touch control line 16 and the data line 20 can be respectively connected and controlled, but also the first control chip 142 can be integrated on the first flexible substrate circuit 141, so that the touch control signal and the voltage signal can be provided to the touch control line 16 through the first control chip 142, and meanwhile, the occupied space of the first control circuit 14 on the array substrate 1 can be reduced, so that the touch control line 16 can be connected to the top of the array substrate 1. It should be understood that in other embodiments of the present application, when the top space of the array substrate 1 is sufficiently large, the first control chip 142 may be directly bonded to the glass substrate 11, and then connected to the first control chip 142 through one end of the first flexible substrate circuit 141, and the other end of the first flexible substrate circuit 141 is used for connection to a total control circuit, which is not limited herein.
In one embodiment of the present application, referring to fig. 3, 5 and 7, the first control circuit 14 is directly bonded to each first metal pin 17, that is, the bonding plate 1411 is directly bonded to each first metal pin 17, and the bonding plate 1411 is a transparent substrate. By the arrangement, the signal control of the first control circuit 14 on each touch control line 16 can be realized, and meanwhile, the connection structure of the first control circuit 14 is simple and the cost is low.
In another embodiment of the present application, the first control circuit 14 may be provided on the back surface of the glass substrate 11. Specifically, referring to fig. 6 and 8 to 10, a plurality of second metal pins 18 are formed on the back surface of the glass substrate 11, and the number of the second metal pins 18 is the same as the number of the first metal pins 17; the second metal pins 18 are electrically connected with the first metal pins 17 through flexible connection structures; one end of the first control circuit 14 is electrically connected to each second metal pin 18, and the other end of the first control circuit 14 is connected to the overall control circuit.
In this embodiment, by forming the plurality of second metal pins 18 on the back surface of the glass substrate 11, each first metal pin 17 can be correspondingly transferred to each second metal pin 18 one by one through the flexible connection structure, and the first control circuit 14 can be further arranged on the glass substrate 11 away from the glass substrate, so that the space occupied by the connection of the first control circuit 14 on the front surface of the glass substrate 11 is reduced.
Specifically, the second metal pins 18 may be formed by depositing a metal material on the back surface of the glass substrate 11.
Optionally, the distance between the adjacent second metal pins 18 is smaller than the distance between the adjacent first metal pins 17, so that the total width of each second metal pin 18 is smaller than the total width of each first metal pin 17, that is, the width of the connecting end of the first control circuit 14 and each second metal pin 18 can also be reduced, so that the width of the glass substrate 11 occupied by the joint plate 1411 can be reduced, which is beneficial to the design of a narrow frame of the array substrate 1 and is beneficial to the side lead. It will be appreciated that in other embodiments of the present application, when the space on the back surface of the glass substrate 11 is sufficiently large, the pitch of the adjacent second metal pins 18 may be designed to be equal to or larger than the pitch of the adjacent first metal pins 17, which is not limited only herein.
In one embodiment, referring to fig. 8 and 9, the flexible connection structure includes a plurality of wires 19, and each wire 19 is connected between each first metal pin 17 and each second metal pin 18 in a one-to-one correspondence manner. Specifically, one end of the wire 19 is connected to the first metal pin 17, and the other end of the wire 19 is connected to the second metal pin 18.
One end of the wire 19 may be bonded to the first metal pin 17 by a bonding method, and the other end of the wire 19 may also be bonded to the second metal pin 18 by a bonding method. It will be appreciated that in other embodiments of the present application, the wire 19 may be connected to the first metal pin 17 or the second metal pin 18 by soldering, which is not limited herein.
In this embodiment, the electrical connection between each first metal pin 17 and each second metal pin 18 is realized through a plurality of wires 19, and the wires 19 have simple structure, good flexibility, simple connection and small occupied space, so that the occupied space of the first control circuit 14 on the front surface of the glass substrate 11 can be greatly reduced.
In another embodiment of the present application, the flexible connection structure is an FPC (Flexible Printed Circuit board, flexible circuit board), one end of which is bonded to each of the first metal pins 17, and the other end of which is bonded to each of the second metal pins 18.
The PFC is also provided with a plurality of connection lines, so that each first metal pin 17 and each second metal pin 18 can be electrically connected in a one-to-one correspondence manner, and connection can be realized only by one FPC, so that the PFC has a simple structure, is simple to connect, and is convenient to operate.
When the first control circuit 14 is disposed on the back surface of the glass substrate 11, the connection board 1411 and the second metal pins 18 may be connected to each other, and the first control chip 142 may be connected to the first flexible substrate circuit 141, and in this case, the connection board 1411 may not be a transparent substrate. Alternatively, the first control chip 142 may be directly bonded to the plurality of second metal pins 18, and then connected to the first control chip 142 through one end of the first flexible substrate circuit 141, and the other end of the first flexible substrate circuit 141 is used for being connected to a total control circuit, which is not limited herein.
In one embodiment, the array substrate 1 further includes a first metal layer and a second metal layer formed on the glass substrate 11; the first metal layer includes a plurality of touch lines 16, and each touch line 16 is electrically connected to each touch electrode 121 in a one-to-one correspondence; the second metal layer includes a plurality of data lines 20, and each data line 20 is electrically connected to each first pixel electrode 1311 in a one-to-one correspondence. Because the touch lines 16 and the data lines 20 are respectively connected to the first control circuit 14 and the second control circuit 15, the touch lines 16 and the data lines 20 can be arranged on the same layer as the second metal layer without being crowded at the second control circuit 15, that is, the touch lines 16 and the data lines 20 are arranged on the same layer, and are formed by the same process, a new process is not required to be additionally added for the touch lines 16, the manufacturing process is simplified, the manufacturing cost is reduced, the total thickness of the array substrate 1 is reduced, and the ultrathin design of the touch display panel is facilitated. It will be appreciated that in other embodiments of the present application, the first metal layer and the second metal layer may be disposed in different layers, and insulated from each other by an insulating layer, which is not limited herein.
In one embodiment, referring to fig. 2 and 4, the second control circuit 15 includes a second flexible substrate circuit (not shown) and a second control chip 151; the second control chip 151 is bonded to the glass substrate 11, each data line 20 is connected to the second control chip 151, one end of the second flexible substrate circuit is connected to the second control chip 151, and the other end of the second flexible substrate circuit is connected to the overall control circuit. In this embodiment, the reserved space at the bottom end of the glass substrate 11 is large, and the second control chip 151 can be directly bonded on the glass substrate 11 to control each data line 20 and each gate line. It should be understood that in other embodiments of the present application, the second control circuit 15 may be configured as a flip-chip film package, specifically, one end of the second flexible substrate circuit is bonded to the glass substrate 11, the other end of the second flexible substrate circuit is connected to the overall control circuit, and the second control chip 151 is bonded to the second flexible substrate circuit, which is not limited herein.
On the other hand, the application also provides a touch display panel, and the array substrate 1 can be used for a liquid crystal display panel, an organic electroluminescent display panel and the like.
When the touch display panel is a liquid crystal display panel, referring to fig. 10, the touch display panel further includes a backlight source 4, an array substrate 1, a color film substrate 2 and a liquid crystal layer 3. The array substrate 1 is opposite to the color film substrate 2 and arranged at intervals, the liquid crystal layer 3 is arranged between the array substrate 1 and the color film substrate 2, and the backlight source 4 is arranged on one side of the array substrate 1, which is away from the color film substrate 2. By applying voltages to the array substrate 1 and the color film substrate 2, the liquid crystal molecules in the liquid crystal layer 3 are controlled to change directions, so that light emitted by the backlight source 4 is refracted out to generate a picture.
When the touch display panel is an organic electroluminescent display panel, the touch display panel includes a packaging layer, a light emitting device layer, and the array substrate 1. Wherein, array substrate 1, luminescent device layer and encapsulation layer are stacked in proper order.
The foregoing description of the preferred embodiments of the application is not intended to be limiting, but rather is intended to cover all modifications, equivalents, and alternatives falling within the spirit and principles of the application.
Claims (8)
1. An array substrate is characterized by comprising a glass substrate, a common electrode layer, a pixel electrode layer, a first control circuit and a second control circuit; the common electrode layer and the pixel electrode layer are respectively formed on the glass substrate and are mutually insulated; the pixel electrode layer comprises a first display area and a second display area, the first display area comprises a plurality of first pixel electrodes, each first pixel electrode is connected to the second control circuit through a data line, and each first pixel electrode is arranged around the second display area; the common electrode layer is divided into a plurality of touch electrodes, each touch electrode is arranged around the second display area, each touch electrode is connected to the first control circuit through a touch line, the first control circuit is connected with each touch line in the second display area, and the first control circuit and the second control circuit are respectively arranged on the lower side and the upper side of the array substrate;
the first control circuit comprises a first flexible substrate circuit and a first control chip, one end of the first flexible substrate circuit is connected with the glass substrate through a connecting plate, and the other end of the first flexible substrate circuit is connected with a total control circuit of the touch display panel; the first control chip is connected to the first flexible substrate circuit;
the joint plate is a transparent substrate;
the second control circuit comprises a second flexible substrate circuit and a second control chip;
the second control chip is connected to the glass substrate, each data line is connected to the second control chip, one end of the second flexible substrate circuit is connected with the second control chip, and the other end of the second flexible substrate circuit is connected with the total control circuit;
or one end of the second flexible substrate circuit is connected with the glass substrate, the other end of the second flexible substrate circuit is connected with the total control circuit, and the second control chip is connected to the second flexible substrate circuit.
2. The array substrate of claim 1, wherein the second display region includes a plurality of second pixel electrodes, each of the first pixel electrodes being disposed below and on both left and right sides of each of the second pixel electrodes;
a plurality of first metal pins are formed on the top of the front surface of the glass substrate, and each first metal pin is arranged at the gap or the edge of each second pixel electrode; each touch control line is connected with each first metal pin in a one-to-one correspondence manner; one end of the first control circuit is electrically connected with each first metal pin, and the other end of the first control circuit is used for being connected with the total control circuit.
3. The array substrate of claim 2, wherein a plurality of second metal pins are formed on the back surface of the glass substrate, and the number of the second metal pins is the same as the number of the first metal pins; the second metal pins are electrically connected with the first metal pins through flexible connection structures; one end of the first control circuit is connected with each second metal pin, and the other end of the first control circuit is connected with the total control circuit.
4. The array substrate of claim 3, wherein a pitch between two adjacent second metal pins is smaller than a pitch between two adjacent first metal pins.
5. The array substrate of claim 3, wherein the flexible connection structure comprises a plurality of wires, one end of the wires being connected to the first metal pins, and the other end of the wires being connected to the second metal pins.
6. The array substrate of claim 3, wherein the flexible connection structure is an FPC, one end of the FPC is bonded to each of the first metal pins, and the other end of the FPC is bonded to each of the second metal pins.
7. The array substrate of any one of claims 1 to 6, further comprising a first metal layer and a second metal layer;
the first metal layer comprises a plurality of touch lines, and each touch line is electrically connected to each touch electrode in a one-to-one correspondence manner;
the second metal layer comprises a plurality of data lines, and each data line is electrically connected to each first pixel electrode in a one-to-one correspondence manner;
wherein the first metal layer and the second metal layer are arranged on the same layer;
alternatively, the first metal layer is provided in a different layer from the second metal layer.
8. A touch display panel comprising the array substrate according to any one of claims 1 to 7.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202310480372.8A CN116204083B (en) | 2023-04-28 | 2023-04-28 | Array substrate and touch display panel |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202310480372.8A CN116204083B (en) | 2023-04-28 | 2023-04-28 | Array substrate and touch display panel |
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| CN116204083A CN116204083A (en) | 2023-06-02 |
| CN116204083B true CN116204083B (en) | 2023-08-11 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728750A (en) * | 2013-12-26 | 2014-04-16 | 京东方科技集团股份有限公司 | Display panel and production method thereof |
| CN204440372U (en) * | 2015-03-13 | 2015-07-01 | 京东方科技集团股份有限公司 | A kind of In-cell touch panel and display device |
| CN112000243A (en) * | 2020-08-10 | 2020-11-27 | 厦门天马微电子有限公司 | Display panel and display device |
| CN115955862A (en) * | 2023-01-31 | 2023-04-11 | 华映科技（集团）股份有限公司 | Frameless flexible display panel structure and manufacturing method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112542484A (en) * | 2019-09-20 | 2021-03-23 | 北京小米移动软件有限公司 | Display panel, display screen and electronic equipment |
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Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103728750A (en) * | 2013-12-26 | 2014-04-16 | 京东方科技集团股份有限公司 | Display panel and production method thereof |
| CN204440372U (en) * | 2015-03-13 | 2015-07-01 | 京东方科技集团股份有限公司 | A kind of In-cell touch panel and display device |
| CN112000243A (en) * | 2020-08-10 | 2020-11-27 | 厦门天马微电子有限公司 | Display panel and display device |
| CN115955862A (en) * | 2023-01-31 | 2023-04-11 | 华映科技（集团）股份有限公司 | Frameless flexible display panel structure and manufacturing method |
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| CN116204083A (en) | 2023-06-02 |
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