CN111489662A - A drive substrate, display panel, display screen and electronic equipment - Google Patents

Abstract

The invention provides a driving substrate, a display panel, a display screen and an electronic device, wherein the driving substrate comprises: a plurality of functional regions arranged in an array, the functional regions comprising: the display device comprises a sub-pixel area, a display area and a control area, wherein a data line, a scanning line and a switch element are arranged in the sub-pixel area; the switch element is used for driving the light-emitting device to emit light; an idle area surrounding outside the sub-pixel area; the free area is used for arranging a cutting line, and the cutting line is used for cutting the driving substrate to obtain at least one sub-driving substrate; the area of the sub-driving substrate is smaller than that of the driving substrate; the grid driving units are arranged between two adjacent idle areas and correspond to the functional areas in each row. The driving substrate, the display panel, the display screen and the electronic equipment can reduce production cost.

Description

A drive substrate, display panel, display screen and electronic equipment

【Technical field】

The present invention relates to the field of display technology, and in particular, to a driving substrate, a display panel, a display screen and an electronic device.

【Background technique】

The design of the driving substrate is an important part of the active light-emitting device, and the driving substrate is provided with a driving circuit, which is used for driving the light-emitting device to emit light. For display panels or backlight modules of different sizes, a driving substrate is required.

However, at present, it is necessary to separately manufacture a driving substrate for panels or backlight modules of different sizes, which leads to high manufacturing costs.

[Content of the invention]

The purpose of the present invention is to provide a driving substrate, a display panel, a display screen and an electronic device, which can reduce the production cost.

In order to solve the above technical problems, the present invention provides a driving substrate, comprising:

A plurality of functional areas arranged in an array, the functional areas include:

a sub-pixel area, where data lines, scan lines and switching elements are arranged in the sub-pixel area; the switching elements are used to drive the light-emitting device to emit light;

a free area surrounding the sub-pixel area; the free area is used for setting a cutting line, and the cutting line is used for cutting the driving substrate to obtain at least one sub-driving substrate; The area is smaller than the area of the driving substrate;

A plurality of gate driving units, the gate driving units are arranged between two adjacent idle areas, and the gate driving units correspond to the functional areas in each row.

The present invention provides a display panel, comprising: the above-mentioned driving substrate and a plurality of light-emitting devices.

The present invention also provides a display screen including the above-mentioned display panel.

The present invention also provides an electronic device comprising the above-mentioned display screen.

The driving substrate, display panel, display screen and electronic device of the present invention include a plurality of functional regions arranged in an array, and the functional regions include: a sub-pixel region where data lines, scan lines and switches are arranged in the sub-pixel region The switching element is used for driving the light-emitting device to emit light; the idle area is surrounded outside the sub-pixel area; the idle area is used for setting a cutting line, and the cutting line is used for cutting the driving substrate to At least one sub-driving substrate is obtained; the area of the sub-driving substrate is smaller than that of the driving substrate; a plurality of gate driving units are arranged between two adjacent free areas, and the gate driving units are The driving unit corresponds to the functional area in each row; since one driving substrate is fabricated and sub-driving substrates of various sizes are obtained by cutting it, the manufacturing process is simplified and the production cost is reduced.

【Description of drawings】

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the following briefly introduces the accompanying drawings that need to be used in the embodiments. The drawings in the following description are only part of the embodiments of the present application, and for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative effort.

FIG. 1 is a plan view of a driving substrate according to an embodiment of the present invention.

FIG. 2 is a plan view of a functional area according to an embodiment of the present invention.

FIG. 3 is a plan view of a driving substrate according to another embodiment of the present invention.

4 is a plan view of a driving substrate according to still another embodiment of the present invention.

5 is a schematic cross-sectional view of a driving substrate according to an embodiment of the present invention.

6 is a schematic cross-sectional view of a driving substrate according to another embodiment of the present invention.

FIG. 7 is a schematic cross-sectional view of a driving substrate according to still another embodiment of the present invention.

8 is a plan view of a driving substrate according to still another embodiment of the present invention.

FIG. 9 is a plan view of a driving substrate according to still another embodiment of the present invention.

10 is a plan view of a driving substrate according to still another embodiment of the present invention.

11 is a schematic cross-sectional view of a display panel according to an embodiment of the present invention.

FIG. 12 is a schematic structural diagram of a display screen according to an embodiment of the present invention.

FIG. 13 is a schematic structural diagram of an electronic device according to an embodiment of the present invention.

【Detailed ways】

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the protection scope of the present application.

In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", " rear, left, right, vertical, horizontal, top, bottom, inside, outside, clockwise, counterclockwise, etc., or The positional relationship is based on the orientation or positional relationship shown in the accompanying drawings, which is only for the convenience of describing the present application and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, Therefore, it should not be construed as a limitation on this application. In addition, the terms "first" and "second" are only used for descriptive purposes, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, features defined as "first", "second" may expressly or implicitly include one or more of said features. In the description of the present application, "plurality" means two or more, unless otherwise expressly and specifically defined.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; it can be mechanical connection, electrical connection or can communicate with each other; it can be directly connected or indirectly connected through an intermediate medium, it can be the internal communication of two elements or the interaction of two elements relation. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

In this application, unless otherwise expressly specified and limited, a first feature "on" or "under" a second feature may include the first and second features in direct contact, or may include the first and second features Not directly but through additional features between them. Also, the first feature being "above", "over" and "above" the second feature includes the first feature being directly above and obliquely above the second feature, or simply means that the first feature is level higher than the second feature. The first feature is "below", "below" and "below" the second feature includes the first feature is directly below and diagonally below the second feature, or simply means that the first feature has a lower level than the second feature.

The following disclosure provides many different embodiments or examples for implementing different structures of the present application. To simplify the disclosure of the present application, the components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the application. Furthermore, this application may repeat reference numerals and/or reference letters in different instances for the purpose of simplicity and clarity, and does not in itself indicate a relationship between the various embodiments and/or arrangements discussed. In addition, this application provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the application of other processes and/or the use of other materials.

Please refer to FIG. 1 , which is a top view of a driving substrate according to an embodiment of the present invention.

As shown in FIG. 1 and FIG. 2 , the driving substrate 100 of this embodiment includes: a plurality of functional regions 10 arranged in an array and a plurality of gate driving units 20 , and further includes a plurality of data lines 11 and a plurality of scan lines 12.

As shown in FIG. 2 , the functional area 10 includes: a sub-pixel area P1 and a free area P2, and the sub-pixel area P1 is provided with a data line 11, a scan line 12 and a switch element 13; the switch element 13 is used for The light-emitting device is driven to emit light; in one embodiment, the light-emitting device includes but is not limited to miniLED, microLED, organic light-emitting diode OLED, and quantum dot light-emitting diode QLED. In another embodiment, in order to facilitate damage to the data lines and scan lines during the cutting process, the scan lines 12 intersect the data lines 11 ; the sub-pixel area P1 covers the data lines 11 and the scan lines 12. Preferably, the edge of the sub-pixel region P1 is located outside the data line 11 and the scan line 12 , that is, the area of the sub-pixel region P1 is larger than the area surrounded by the data line 11 and the scan line 12 area.

The free area P2 surrounds the sub-pixel area P1; the free area P2 is used for setting a cutting line 15, and the cutting line 15 is used for cutting the driving substrate 100 to obtain at least one sub-driving substrate; The area of the sub-driving substrate is smaller than the area a of the driving substrate 100; that is, the area of the free area P2 is larger than the area of the sub-pixel area P1, wherein the area of the free area P2 and the area of the sub-pixel area P1 are between The difference can be set according to specific needs, which is not limited here. The free area P2 is also the area between the inner and outer rectangles in FIG. 2 . Structures such as signal lines, gate driving units, and electrostatic protection circuits are not provided in the free area P2, that is, there are no other structures except data lines and scan lines in the free area P2. For example, returning to FIG. 1, the driving substrate 100 is cut according to the upper cutting line 15 to obtain a sub-driving substrate whose area is b, and the driving substrate 100 is cut according to the lower cutting line 15 to obtain the sub-driving substrate, Its area is c.

The gate driving unit 20 is disposed between two adjacent idle regions P2, and the gate driving unit 20 corresponds to each row of functional regions 10. In one embodiment, each row of functional areas 10 may correspond to one gate driving unit 20 , and in another embodiment, each row of functional areas 10 may correspond to two or more gate driving units 20 . FIG. 1 only provides an example, but does not limit the present invention. The positions of the gate driving unit 20 and the cutting line 15 do not overlap. The gate driving unit 20 may be located between two adjacent free regions P2 in the middle of the driving substrate 100 , which is not specifically limited.

In another embodiment, as shown in FIG. 3 , the driving substrate 100 may further include: an electrostatic protection circuit 30 , in order to simplify the manufacturing process and further reduce the production cost, the electrostatic protection circuit 30 is located in a spare area in the setting area 101 In P2, the position of the setting area 101 corresponds to the position of the sub-drive substrate. Preferably, in order to further simplify the manufacturing process, when the cutting line 15 is used to cut the driving substrate 100 to obtain a plurality of sub-driving substrates; the position of the setting area 101 is the same as the position of the setting sub-driving substrate Correspondingly, the set sub-driving substrate is a sub-driving substrate with the smallest area among the plurality of sub-driving substrates. That is, the position of the setting area 101 corresponds to the position of the sub-driving substrate with the smallest area among the plurality of sub-driving substrates. For example, two sub-driving substrates can be obtained by cutting the driving substrate, with areas b and c, respectively, and c is smaller than b. Therefore, an electrostatic protection circuit 30 can be provided in the sub-driving substrate in the lower left corner of FIG. 3 . In one embodiment, the electrostatic protection circuit 30 may also be integrated into the gate driving unit 20 . The electrostatic protection circuit 30 does not overlap the position of the cutting line 15 .

In another embodiment, in order to simplify the manufacturing process and further reduce the production cost, as shown in FIG. 4 , the driving substrate 100 may further include: connecting terminals 40 , and the connecting terminals 40 are located at the edge of the setting area 101 , wherein The position of the setting area 101 corresponds to the position of the sub-driving substrate. Preferably, the position of the setting area 101 corresponds to the position of the sub-driving substrate with the smallest area among the plurality of sub-driving substrates. The number of the connection terminals 40 may also be multiple, wherein the connection terminals 40 are connected to the source driver chip through the flexible circuit board.

In one embodiment, as shown in FIGS. 5 to 7 , the cross-sectional structure of the driving substrate 100 includes a base substrate 41 , a semiconductor layer 42 , a first insulating layer 43 , a gate 441 , a connecting line 442 , and a second insulating layer The layer 45 and the second metal layer 46, the third insulating layer 47 and the first connection part 481 and the second connection part 482, the second metal layer 46 includes the source and drain.

The sub-pixel region P1 is also provided with a first connection part 481 and a second connection part 482, wherein the first connection part 481 is connected with the switching element 13, and the first connection part 481 is used for connecting with the light-emitting The first end of the device is connected, and the second connection part 482 is used for connecting with the second end of the light emitting device. In one embodiment, the first end of the light emitting device may be an anode, and the second end may be a cathode.

The base substrate 41 at the position corresponding to the free area P2 may be covered with a film layer, or partially covered with a film layer, or not covered with a film layer.

It can be understood that FIG. 1 , FIG. 3 , and FIG. 4 only show one division method, and the division method of the driving substrate in this embodiment is not limited to this. The method is divided, but it is not limited to this.

In the actual dividing process, marks can be set on the four corners of the driving substrate 100. Since the width between the functional areas 10 is preset, and the width of the free area P2 is also set, therefore, according to the position of the mark and the free area The width of P2 can determine the position of the cutting line 15 .

Since the driving substrate of this embodiment has multiple functional regions and gate driving units, sub-driving substrates a, b, c of various sizes (but not limited to only three types) can be obtained by fabricating one driving substrate and cutting it. It is only described here as an example), thereby simplifying the manufacturing process and reducing the production cost. In addition, production efficiency is improved.

As shown in FIG. 11 , this embodiment further provides a display panel 200 , which includes any one of the above-mentioned driving substrate 100 and a plurality of light-emitting devices 120 . In one embodiment, a plurality of light-emitting devices 120 are bound to the on the drive substrate 100 . Of course, the light-emitting device can be directly fabricated on the driving substrate 100, and the specific manner is not limited.

As shown in FIG. 12 , this embodiment further provides a display screen 300 , which includes any one of the above-mentioned display panels 200 , and the display screen may further include a touch layer 220 . In one embodiment, the touch layer 220 may be disposed above the display panel, but the configuration of the touch layer is not limited thereto.

Please refer to FIG. 13 , which is a schematic structural diagram of an electronic device provided by an embodiment of the present application. The electronic device 400 may include a display screen 300 , a control circuit 60 , and a housing 50 . It should be noted that the electronic device 300 shown in FIG. 13 is not limited to the above contents, and may also include other devices, such as a camera, an antenna structure, a fingerprint unlocking module, and the like.

The display screen 300 is disposed on the casing 50 .

In some embodiments, the display screen 300 may be fixed to the casing 50, and the display screen 300 and the casing 50 form a closed space to accommodate devices such as the control circuit 60.

In some embodiments, the casing 50 may be made of a flexible material, such as a plastic casing or a silicone casing.

Wherein, the control circuit 60 is installed in the casing 50, the control circuit 60 can be the main board of the electronic device 400, and the control circuit 60 can be integrated with a battery, an antenna structure, a microphone, a speaker, a headphone interface, a universal serial bus interface, One, two or more of functional components such as camera, distance sensor, ambient light sensor, receiver, and processor.

The display screen 300 is installed in the casing 50 , and at the same time, the display screen 300 is electrically connected to the control circuit 60 to form a display surface of the electronic device 400 . The display screen 300 may include a display area and a non-display area. The display area may be used to display the screen of the electronic device 100 or for the user to perform touch manipulation and the like. This non-display area can be used to set various functional components.

The electronic devices include but are not limited to mobile phones, tablet computers, computer monitors, game consoles, televisions, display screens, wearable devices, and other household appliances or household appliances with display functions.

The driving substrate, display panel, display screen and electronic device of the present invention include a plurality of functional regions arranged in an array, and the functional regions include: a sub-pixel region where data lines, scan lines and switches are arranged in the sub-pixel region The switching element is used for driving the light-emitting device to emit light; the idle area is surrounded outside the sub-pixel area; the idle area is used for setting a cutting line, and the cutting line is used for cutting the driving substrate to At least one sub-driving substrate is obtained; the area of the sub-driving substrate is smaller than that of the driving substrate; a plurality of gate driving units are arranged between two adjacent free areas, and the gate driving units are The driving unit corresponds to the functional area in each row; since one driving substrate is fabricated and sub-driving substrates of various sizes are obtained by cutting it, the manufacturing process is simplified and the production cost is reduced.

In summary, although the present invention has been disclosed above with preferred embodiments, the above preferred embodiments are not intended to limit the present invention. Those of ordinary skill in the art can make various Therefore, the protection scope of the present invention is subject to the scope defined by the claims.

Claims (10)

1. A drive substrate, characterized in that, comprising: A plurality of functional areas arranged in an array, the functional areas include: a sub-pixel area, where data lines, scan lines and switching elements are arranged in the sub-pixel area; the switching elements are used to drive the light-emitting device to emit light; a free area surrounding the sub-pixel area; the free area is used for setting a cutting line, and the cutting line is used for cutting the driving substrate to obtain at least one sub-driving substrate; The area is smaller than the area of the driving substrate; A plurality of gate driving units, the gate driving units are arranged between two adjacent idle areas, and the gate driving units correspond to the functional areas in each row. 2. The driving substrate according to claim 1, wherein the driving substrate further comprises: The electrostatic protection circuit is located in a free area in a set area, wherein the position of the set area corresponds to the position of the sub-drive substrate. 3. The driving substrate according to claim 2, wherein the cutting line is used for cutting the driving substrate to obtain a plurality of sub-driving substrates; The position of the setting area corresponds to the position of the setting sub-driving substrate, wherein the setting sub-driving substrate is a sub-driving substrate with the smallest area among the plurality of sub-driving substrates. 4. The drive substrate according to claim 2, wherein, The electrostatic protection circuit is integrated in the gate driving unit. 5. The driving substrate according to claim 2, wherein the driving substrate further comprises: The connection terminal is located at the edge of the setting area, wherein the position of the setting area corresponds to the position of the sub-driving substrate. 6. The drive substrate according to claim 5, wherein, The sub-pixel region is further provided with a first connection part and a second connection part, wherein the first connection part is connected with the switching element, and the first connection part is used for connection with the first end of the light emitting device , the second connection part is used for connecting with the second end of the light emitting device. 7. The driving substrate of claim 1, wherein the scan line intersects the data line; The sub-pixel region covers the data line and the scan line, and the edge of the sub-pixel region is located outside the data line and the scan line. 8. A display panel, comprising the driving substrate according to any one of claims 1 to 7 and a plurality of light emitting devices. 9. A display screen, comprising the display panel according to claim 8. 10. An electronic device, comprising the display screen of claim 9.

Images