CN113535000A - Touch substrate and display device - Google Patents
Touch substrate and display device Download PDFInfo
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- CN113535000A CN113535000A CN202110826261.9A CN202110826261A CN113535000A CN 113535000 A CN113535000 A CN 113535000A CN 202110826261 A CN202110826261 A CN 202110826261A CN 113535000 A CN113535000 A CN 113535000A
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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
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- General Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
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- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- User Interface Of Digital Computer (AREA)
Abstract
The utility model provides a touch-control base plate and display device belongs to and shows technical field, and it can solve the touch-control electrode recognition accuracy of peripheral touch-control district among the current display substrate and be lower, can not discern the slip operation, can't realize the problem of digital rim plate function. The touch substrate of the present disclosure has a touch area and a peripheral area surrounding the touch area, the touch area including: an edge touch area adjacent to the peripheral area; the touch substrate comprises: the touch control device comprises a substrate and a plurality of first touch control electrodes which are positioned on the substrate and arranged in an edge touch control area; the pattern of the first touch electrode is a special-shaped pattern; the touch substrate further includes: at least one second touch electrode located on the substrate and arranged in the peripheral area; the second touch electrode is electrically connected with one of the first touch electrodes and is arranged adjacent to another of the first touch electrodes.
Description
Technical Field
The disclosure belongs to the technical field of display, and particularly relates to a touch substrate and a display device.
Background
Along with the continuous development of display technology, intelligent wearable display device receives people's favor more and more. For example, smart watches, smart glasses, and smart bracelets, among others. These wearable equipment of intelligence not only have frivolous, fashion and intelligent characteristics, often still have touch function. In order to meet the requirements of users for fashion and beauty, the shapes of the current intelligent wearable display devices are often set to be irregular shapes such as polygons, circles, rings and the like.
Taking a smart watch as an example, in order to save the manufacturing cost, the touch screen of the smart watch is often made of a single-layer self-contained touch structure, and the touch requirement of a user can be met at the center of the touch screen. However, at the edge of the touch screen, in order to keep the same shape with the smart watch, the touch structure at the edge of the main control screen is often in a special shape, the touch precision is low, and only a simple touch positioning function can be satisfied. If the sliding operation is performed on the edge of the touch screen, the touch structure cannot accurately identify the sliding action, and the requirements of the user cannot be met. For example, the digital roulette function of the smart watch needs a user to perform a sliding operation, but the sliding action of the user cannot be accurately identified due to the current touch structure, so that the smart watch cannot realize the digital roulette function, and the user experience is affected.
Disclosure of Invention
The present disclosure is directed to at least one of the technical problems in the prior art, and provides a touch substrate and a display device.
In a first aspect, an embodiment of the present disclosure provides a touch substrate having a touch area and a peripheral area surrounding the touch area, where the touch area includes: an edge touch area adjacent to the peripheral area; the touch substrate includes: the touch control device comprises a substrate and a plurality of first touch control electrodes which are positioned on the substrate and arranged in the edge touch control area; the pattern of the first touch electrode is a special-shaped pattern; the touch substrate further includes: at least one second touch electrode located on the substrate and arranged in the peripheral area;
the second touch electrode is electrically connected to one of the plurality of first touch electrodes and disposed adjacent to another of the plurality of first touch electrodes.
Optionally, an extending direction of the second touch electrode is the same as an extending direction of the peripheral area, and the second touch electrode at least partially surrounds the first touch electrode.
Optionally, the touch substrate further includes: the connecting electrode is positioned on the substrate and extends from the edge touch area to the peripheral area;
one end of the connecting electrode is electrically connected with the first touch electrode, and the other end of the connecting electrode is electrically connected with the second touch electrode.
Optionally, the first touch electrode, the second touch electrode and the connecting electrode are of an integrally formed structure.
Optionally, the touch substrate further includes: the touch signal line is positioned on the substrate and arranged in the peripheral area; the touch signal line is intersected with the extending direction of the connecting electrode;
an insulating layer is arranged between the touch signal line and the connecting electrode;
one end of the connecting electrode is electrically connected with the first touch electrode through a first through hole penetrating through the insulating layer, and the other end of the connecting electrode is electrically connected with the second touch electrode through a second through hole penetrating through the insulating layer.
Optionally, the touch area further includes: a central touch area adjacent to the edge touch area; the touch substrate further includes: a third touch electrode located on the substrate and disposed in the central touch area;
the pattern of the third touch electrode is a rectangular pattern.
Optionally, the third touch electrodes are arranged in an array.
Optionally, the edge of the peripheral area is arc-shaped; the pattern of the second touch electrode is an arc pattern.
Optionally, a distance between the second touch electrode and the first touch electrode disposed adjacent to the second touch electrode is 1 mm to 2 mm.
In a second aspect, embodiments of the present disclosure provide a display device including the touch substrate provided above.
Drawings
FIG. 1 is a schematic diagram of the operation of an exemplary number wheel function;
FIG. 2 is a schematic structural diagram of an exemplary touch substrate;
fig. 3 is a schematic structural diagram of a touch substrate according to an embodiment of the disclosure;
fig. 4 is a schematic cross-sectional view of the touch substrate shown in fig. 3 along a direction a-a'.
Detailed Description
For a better understanding of the technical aspects of the present disclosure, reference is made to the following detailed description taken in conjunction with the accompanying drawings.
Unless otherwise defined, technical or scientific terms used herein shall have the ordinary meaning as understood by one of ordinary skill in the art to which this disclosure belongs. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. Also, the use of the terms "a," "an," or "the" and similar referents do not denote a limitation of quantity, but rather denote the presence of at least one. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", and the like are used merely to indicate relative positional relationships, and when the absolute position of the object being described is changed, the relative positional relationships may also be changed accordingly.
Fig. 1 is an operation diagram of an exemplary digital wheel function, and as shown in fig. 1, a user may slide an edge of a touch screen of a smart wearable display device (a smart watch) to trigger a specific scene, for example, the user may slide left and right to set an alarm time, adjust a brightness of the display screen, adjust a speed of playing music, switch multiple user interfaces, and the like.
Fig. 2 is a schematic structural diagram of an exemplary touch substrate, as shown in fig. 2, the touch substrate has a touch area and a peripheral area surrounding the touch area, the touch area includes: an edge touch region adjacent to the peripheral region, the touch substrate comprising: the touch screen comprises a substrate 101 and a plurality of first touch electrodes 102 which are positioned on the substrate 101 and arranged in an edge touch area; the pattern of the first touch electrode 102 is a special-shaped pattern.
In the embodiment of the present disclosure, a smart watch is taken as an example for explanation, and it can be understood that the smart wearable display device may also be other devices besides the smart watch, and the implementation principle is similar, which will not be described in detail again. In order to meet the requirement of the shape, the pattern of the plurality of first touch electrodes 102 in the edge touch area is often configured as a special-shaped pattern, which is a shape other than a rectangle, and the special-shaped pattern may include a regular shape or an irregular shape, for example, a sector pattern shown in fig. 2. On the other hand, in practical applications, in order to save the manufacturing cost and reduce the number of channels of the driving chip connected to the first touch electrode 102, the area of the first touch electrode 102 is often set to be relatively large, which results in low touch accuracy of the touch electrode in the edge touch area of the touch substrate. In this way, when the user operates the edge touch area of the touch substrate with a hand, the first touch electrode 102 therein can only satisfy a simple touch positioning function. If the digital wheel function needs to be realized, when a user performs a sliding operation in the edge touch area of the touch substrate, the first touch electrode 102 in the digital wheel function cannot accurately identify the sliding motion of the user, so that the digital wheel function cannot be realized, and the user experience is affected. In order to realize the digital wheel function, the precision of the first touch electrode 102 may be increased, and the first touch electrode 102 is divided into a plurality of sub-touch electrodes with smaller areas, so that the process difficulty is increased and the manufacturing cost is increased. On the other hand, the number of the sub-touch electrodes is increased, the number of channels of the driving chip is increased, the energy consumption of the driving chip is increased, and the development cost of the driving chip is increased.
In order to solve at least one of the above technical problems, embodiments of the present disclosure provide a touch substrate and a display device, which will be described in detail with reference to the accompanying drawings and detailed description.
Fig. 3 is a schematic structural diagram of a touch substrate according to an embodiment of the disclosure, as shown in fig. 3, the touch substrate has a touch area and a peripheral area surrounding the touch area, and the touch area includes: an edge touch area adjacent to the peripheral area; the touch substrate includes: the touch screen comprises a substrate 101 and a plurality of first touch electrodes 102 which are positioned on the substrate 101 and arranged in an edge touch area; the pattern of the first touch electrode 102 is a special-shaped pattern; the touch substrate further includes: at least one second touch electrode 103 located on the substrate 101 and disposed in the peripheral region; the second touch electrode 103 is electrically connected to one of the plurality of first touch electrodes 102, and is disposed adjacent to another of the plurality of first touch electrodes 102.
The substrate 101 may be made of rigid materials such as glass, and other films thereon may be effectively supported, it can be understood that the substrate 101 may also be made of flexible materials such as Polyimide (PI), and when other films are effectively supported, the substrate may also avoid the whole touch substrate from being broken in the stretching and bending processes, thereby improving the flexibility of the whole touch substrate, and facilitating the common molding with other structures. In practical applications, the material of the substrate 101 may be selected appropriately, and is not limited herein.
The first touch electrode 103 and the second touch electrode 103 can be made of the same material by one-step process, so that the number of manufacturing steps can be reduced, and the manufacturing cost can be saved. The material may specifically include a metal material or an alloy material, for example, a metal single-layer or multi-layer structure formed by a metal material including molybdenum (Mo), aluminum (Al), or titanium (Ti), or an alloy including one or more of molybdenum (Mo), aluminum (Al), and titanium (Ti), for example, the multi-layer structure is a multi-metal-layer stack, such as a titanium (Ti), aluminum (Al), and titanium (Ti) three-layer metal stack.
In the touch substrate provided by the embodiment of the disclosure, at least one second touch electrode 103 is disposed in the peripheral region, the second touch electrode 103 may be electrically connected to one of the plurality of first touch electrodes 102 and disposed adjacent to another of the plurality of first touch electrodes 102, for example, as shown in fig. 3, the touch substrate may be circular, along the circumferential direction, the first touch electrodes 102 in the edge touch region of the touch substrate may be numbered I, II, III, IV, and the second touch electrodes 103 in the peripheral region of the touch substrate may be numbered I-1, IV-1, wherein the second touch electrode 103 numbered I-1 is electrically connected to the first touch electrode 102 numbered I, and the second touch electrode 103 numbered I-1 is disposed adjacent to the first touch electrode numbered II, the second touch electrode 103 numbered IV-1 is electrically connected to the first touch electrode 102 numbered IV, and the second touch electrode 103 numbered IV-1 is disposed adjacent to the first touch electrode 102 numbered III. When the user touches the two points a and B with hands, the user can touch not only the first touch electrode 102 numbered III but also the second touch electrode 103 numbered IV-1, and since the second touch electrode 103 numbered IV-1 is electrically connected to the first touch electrode 102 numbered IV, it is equivalent to the user touching a plurality of first touch electrodes 102 at the same time, so that the plurality of first touch electrodes 102 in the touch substrate simultaneously report points. Similarly, when the user touches the point C with a hand, since the point C is located at the boundary position of the first touch electrodes 102, the user can touch the first touch electrodes 102 at the same time, so that the first touch electrodes 102 in the touch substrate report the point at the same time. In the practical application process, when the user slides from the point a to the point C through the point B by hand, since the plurality of first touch electrodes 102 can report points simultaneously when touching each point, the driving chip can detect the change of the capacitance signal quantity on each first touch electrode 102 to improve the accuracy of each first touch electrode 102, thereby recognizing the sliding operation of the user, realizing the digital wheel function, and further improving the use experience of the user. Similarly, the user can also realize the digital roulette function when touching the D point, the E point, and the F point, and the implementation principle thereof is similar to that described above and is not described herein again.
It should be noted that, when a user operates the touch substrate, the capacitance value of the touch electrode disposed in the touch substrate changes, and the driving chip compares the change of the capacitance value with a preset threshold to detect which point in the touch substrate is touched, which process is called a report touch point, which is called a report touch point for short.
In some embodiments, the extending direction of the second touch electrode 103 is the same as the extending direction of the peripheral region, and the second touch electrode 103 at least partially surrounds the first touch electrode 102.
In practical applications, the second touch electrode 103 is arranged in the peripheral region and has the same extending direction as the peripheral region, for example, in the embodiment of the present disclosure, the shape of the smart watch is circular, the corresponding shape of the peripheral region is annular, and the second touch electrode 103 extends in the annular peripheral region, so that the second touch electrode 103 can at least partially contact the first touch electrode 102, and thus the first touch electrode 102 and the second touch electrode 103 have a larger facing area, and when a user touches the peripheral region or the edge touch region, the user can more conveniently touch the plurality of first touch electrodes 102 at the same time, and the plurality of first touch electrodes 102 report points at the same time, so as to improve the accuracy of each first touch electrode 102, thereby recognizing the sliding operation of the user, implementing a digital wheel function, and further improving the user experience.
In some embodiments, the touch substrate further comprises: a connecting electrode 104 located on the substrate 101 and extending from the edge touch region to the peripheral region; one end of the connection electrode 104 is electrically connected to the first touch electrode 102, and the other end is electrically connected to the second touch electrode 103.
The first touch electrodes 102 and the second touch electrodes 103 can be connected together through the connecting electrodes 104, so that when a user touches the second touch electrodes 103, a touch signal can be transmitted to the first touch electrodes 102 connected to the connecting electrodes 104 through the connecting electrodes 104, and thus when the user touches the first touch electrodes 102 and the second touch electrodes 103, the user can touch the plurality of first touch electrodes 102 at the same time, so that the plurality of first touch electrodes 102 in the touch substrate report points at the same time, and the accuracy of each first touch electrode 102 is improved, so that the sliding operation of the user can be recognized, the digital wheel function is realized, and the use experience of the user is improved.
In some embodiments, the first touch electrode 102, the second touch electrode 103 and the connecting electrode 104 are an integrally formed structure.
In practical applications, the first touch electrode 102, the second touch electrode 103 and the connecting electrode 104 may be manufactured as an integrally formed structure, so as to reduce the connecting resistance among the first touch electrode 102, the second touch electrode 103 and the connecting electrode 104, improve the transmission effect of the touch signal, and reduce the problem of large energy consumption caused by the connecting resistance.
In some embodiments, as shown in fig. 3 and 4, the touch substrate further includes: a touch signal line 105 disposed on the substrate 101 and disposed in the peripheral region; the extending direction of the touch signal line 105 and the connecting electrode 104 is crossed; an insulating layer is arranged between the touch signal line 105 and the connecting electrode 104; one end of the connection electrode 104 is electrically connected to the first touch electrode 102 through a first via hole penetrating the insulating layer, and the other end is electrically connected to the second touch electrode 103 through a second via hole penetrating the insulating layer.
The touch signal lines 105 may be electrically connected to the first touch electrodes 102 to transmit a touch signal to the driving chip, and generally, the touch signal lines 105 are disposed in the peripheral region. It is understood that the touch signal line 105 may also be other types of signal lines, such as a signal for transmitting a display signal. Due to the existence of the touch signal line 105, in order to avoid short circuit between the connection electrode 104 and the touch signal line 105 and influence signal transmission, an insulating layer may be used to insulate the connection electrode 104 from the touch signal line 105. The two ends of the connection electrode 104 may be electrically connected to the first touch electrode 102 and the second touch electrode 103 through a first via hole and a second via hole penetrating through the insulating layer, respectively, to form a bridging structure.
In some embodiments, the touch area further comprises: a central touch area adjacent to the edge touch area; the touch substrate further includes: a third touch electrode 106 disposed on the substrate 101 and disposed in the central touch region; the pattern of the third touch electrode 106 is a rectangular pattern.
The third touch electrode 106 may be a rectangular pattern, which may be arranged in the central touch area in an array, and since the pattern shape is a regular rectangular pattern, the signal transmission is stable, and the touch report requirement of the user can be satisfied.
In some embodiments, the distance between the second touch electrode 103 and the adjacent first touch electrode 102 is 1 mm to 2 mm.
A certain gap is provided between the second touch electrode 103 and the adjacent first touch electrode 102 to prevent the second touch electrode 103 from being short-circuited with the adjacent first touch electrode 102, and the gap is smaller than a certain preset value, that is, smaller than the size of a finger of a user, for example, the distance between the second touch electrode 103 and the adjacent first touch electrode 102 is 1 mm to 2 mm. The width of the user's finger can be generally considered to be less than or equal to 4 mm, so that when the user touches the first touch electrode 102, the second touch electrode 103 can be touched more conveniently, which is equivalent to the user touching the plurality of first touch electrodes 102 simultaneously, so that the plurality of first touch electrodes 102 in the touch substrate report points simultaneously, thereby improving the accuracy of each first touch electrode 102, and thus the sliding operation of the user can be identified, the digital roulette function is realized, and the use experience of the user is improved. It can be understood that the distance between the second touch electrode 103 and the first touch electrode 102 disposed adjacent to the second touch electrode 103 may be set according to actual needs, and only needs to ensure that the first touch electrode 102 and the second touch electrode 103 can be initially considered when a user operates the touch substrate, and the specific distance is not limited herein.
The embodiment of the disclosure also provides a display device, which includes the touch substrate provided in any one of the above embodiments. The display device can further comprise a display substrate, the touch substrate can be arranged opposite to the display substrate, or the touch substrate can be integrated with the display substrate to realize touch and display functions. Specifically, this display device can be wearable equipment of intelligence such as intelligent wrist-watch, intelligent glasses, intelligent bracelet, and of course, this display device still can be for having the wearable equipment of other intelligence of special-shaped shape. It can be understood that the implementation principle and the technical effect of the display device provided in the embodiment of the present disclosure are the same as those of the touch substrate provided in any one of the embodiments described above, and are not repeated herein.
It is to be understood that the above embodiments are merely exemplary embodiments that are employed to illustrate the principles of the present disclosure, and that the present disclosure is not limited thereto. It will be apparent to those skilled in the art that various changes and modifications can be made therein without departing from the spirit and scope of the disclosure, and these are to be considered as the scope of the disclosure.
Claims (10)
1. A touch substrate having a touch area and a peripheral area surrounding the touch area, the touch area comprising: an edge touch area adjacent to the peripheral area; characterized in that, the touch substrate includes: the touch control device comprises a substrate and a plurality of first touch control electrodes which are positioned on the substrate and arranged in the edge touch control area; the pattern of the first touch electrode is a special-shaped pattern; the touch substrate further includes: at least one second touch electrode located on the substrate and arranged in the peripheral area;
the second touch electrode is electrically connected to one of the plurality of first touch electrodes and disposed adjacent to another of the plurality of first touch electrodes.
2. The touch substrate of claim 1, wherein the second touch electrode extends in the same direction as the peripheral area, and the second touch electrode at least partially surrounds the first touch electrode.
3. The touch substrate of claim 1, further comprising: the connecting electrode is positioned on the substrate and extends from the edge touch area to the peripheral area;
one end of the connecting electrode is electrically connected with the first touch electrode, and the other end of the connecting electrode is electrically connected with the second touch electrode.
4. The touch substrate of claim 3, wherein the first touch electrode, the second touch electrode and the connecting electrode are integrally formed.
5. The touch substrate of claim 3, further comprising: the touch signal line is positioned on the substrate and arranged in the peripheral area; the touch signal line is intersected with the extending direction of the connecting electrode;
an insulating layer is arranged between the touch signal line and the connecting electrode;
one end of the connecting electrode is electrically connected with the first touch electrode through a first through hole penetrating through the insulating layer, and the other end of the connecting electrode is electrically connected with the second touch electrode through a second through hole penetrating through the insulating layer.
6. The touch substrate of claim 1, wherein the touch area further comprises: a central touch area adjacent to the edge touch area; the touch substrate further includes: a third touch electrode located on the substrate and disposed in the central touch area;
the pattern of the third touch electrode is a rectangular pattern.
7. The touch substrate of claim 6, wherein the third touch electrodes are arranged in an array.
8. The touch substrate of claim 1, wherein the edge of the peripheral area is arc-shaped; the pattern of the second touch electrode is an arc pattern.
9. The touch substrate of claim 1, wherein a distance between the second touch electrode and the first touch electrode disposed adjacent to the second touch electrode is 1 mm to 2 mm.
10. A display device comprising the touch substrate according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110826261.9A CN113535000A (en) | 2021-07-21 | 2021-07-21 | Touch substrate and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110826261.9A CN113535000A (en) | 2021-07-21 | 2021-07-21 | Touch substrate and display device |
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| CN113535000A true CN113535000A (en) | 2021-10-22 |
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| CN202110826261.9A Pending CN113535000A (en) | 2021-07-21 | 2021-07-21 | Touch substrate and display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114296576A (en) * | 2021-12-30 | 2022-04-08 | 京东方科技集团股份有限公司 | Touch substrate and display device |
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2021
- 2021-07-21 CN CN202110826261.9A patent/CN113535000A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114296576A (en) * | 2021-12-30 | 2022-04-08 | 京东方科技集团股份有限公司 | Touch substrate and display device |
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