Touch module, touch display substrate, display device and touch method

Abstract

The present disclosure provides a touch module, including: a touch module, which has multiple functional areas arranged in sequence along a first direction; a touch chip group, including multiple touch chips connected in pairs; the touch chip group is used to respond to touch data acquired by the touch module, determine the touch type according to the touch data, and send the touch data to the main control end by one of the multiple touch chips corresponding to the determined touch type; wherein each touch chip corresponds to a functional area, and is used to receive touch data of the functional area corresponding to it. The present disclosure also provides a touch display substrate, a display device and a touch method.

Description

Technical Field

[0001] The present disclosure relates to the field of touch display technology, and in particular to a touch module, a touch display substrate, a display device and a touch method. Background Art

[0002] With the development of portable electronic display devices, touch panels provide a new human-computer interaction interface that is more direct and user-friendly. Integrating a touch panel with a flat display device can give the flat display device a touch function, allowing input to be performed through fingers, stylus pens, etc., making the operation more intuitive and simple.

[0003] Currently, the more commonly used touch technologies include resistive touch and capacitive touch, but users mostly choose capacitive touch as their preferred device for controllability, ease of use and surface appearance. Capacitive touch screens are widely used in various electronic interactive scene devices due to their high durability, long life, and support for multi-touch functions.

[0004] At present, touch chips are only suitable for small-sized touch screens, such as mobile phone screens. In actual applications, there is a lack of chip design solutions that are compatible with medium-sized and large-sized screens. Summary of the invention

[0005] The present disclosure aims to solve at least one of the technical problems existing in the prior art, and proposes a touch module, a touch display substrate, a display device and a touch method.

[0006] To achieve the above objectives, in a first aspect, an embodiment of the present disclosure provides a touch module, including:

[0007] A touch module having a plurality of functional areas sequentially arranged along a first direction;

[0008] A touch chipset, comprising a plurality of touch chips connected in pairs; the touch chipset is used to respond to touch data acquired by the touch module, determine a touch type according to the touch data, and send the touch data to a main control end by one of the plurality of touch chips corresponding to the determined touch type;

[0009] Wherein, each of the touch control chips corresponds to one of the functional areas and is used to receive touch data of the functional area corresponding thereto.

[0010] In some embodiments, the touch control module includes a first functional area and a second functional area sequentially arranged along the first direction, and the touch control chipset includes a first chip corresponding to the first functional area and a second chip corresponding to the second functional area.

[0011] In some embodiments, the touch types include: object touch type and finger touch type.

[0012] In some embodiments, the touch module further includes: a glass substrate and a transparent protective layer;

[0013] The touch control module is disposed between the glass substrate and the transparent protective layer;

[0014] The touch module includes a plurality of touch electrodes and a plurality of sensing electrodes, and an interlayer insulating layer disposed between a layer where the plurality of touch electrodes are located and a layer where the plurality of sensing electrodes are located; orthographic projections of the plurality of touch electrodes and the plurality of sensing electrodes on the glass substrate intersect.

[0015] In some embodiments, each of the touch control chips includes a first serial peripheral interface, the first serial peripheral interfaces of the plurality of touch control chips are connected in pairs, and the plurality of touch control chips transmit data to each other through their respective first serial peripheral interfaces.

[0016] In some embodiments, each of the touch control chips further includes a second serial peripheral interface, and each of the touch control chips is connected to an off-chip memory via the second serial peripheral interface.

[0017] In some embodiments, each of the touch control chips includes an on-chip memory and a micro control unit;

[0018] Each of the touch control chips is configured to determine the touch type based on the received touch data of the corresponding functional area; in response to the touch type determined to correspond to itself, its own microcontroller unit sends the touch data to the main control end; in response to the touch type determined not to correspond to itself, the touch data is transmitted to another chip corresponding to the touch type through its own first serial peripheral interface, so that the microcontroller unit of the other chip sends the touch data to the main control end.

[0019] In some embodiments, each of the touch control chips includes a serial bus interface;

[0020] Each of the touch control chips is configured to transmit the touch data to the main control end through its own serial bus interface.

[0021] In a second aspect, an embodiment of the present disclosure further provides a touch display substrate, comprising: a display module and a touch module disposed on a display surface side of the display module;

[0022] The touch module adopts the touch module as described in any of the above embodiments.

[0023] In some embodiments, the touch display substrate has a display area and a peripheral area surrounding the display area;

[0024] The display module includes a driving chip, and the driving chip is configured to provide a display signal to the display module;

[0025] The touch chipset of the touch module and the driving chip are arranged on the same side of the peripheral area in the second direction, or the touch chipset and the driving chip are respectively arranged on two opposite sides of the peripheral area in the second direction.

[0026] In a third aspect, an embodiment of the present disclosure further provides a display device, comprising: a touch display substrate as described in any one of the above embodiments.

[0027] In a fourth aspect, an embodiment of the present disclosure further provides a touch control method, which is applied to the touch control module described in any one of the above embodiments, and the method includes:

[0028] Get touch data;

[0029] Determine a touch type according to the touch data;

[0030] One of the plurality of touch control chips corresponding to the determined touch type sends the touch data to the main control end so that the main control end can determine the touch position. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The accompanying drawings are used to provide a further understanding of the present disclosure and constitute a part of the specification. Together with the embodiments of the present disclosure, they are used to explain the present disclosure and do not constitute a limitation of the present disclosure. The above and other features and advantages will become more apparent to those skilled in the art by describing detailed example embodiments with reference to the accompanying drawings, in which:

[0032] Figure 1 A schematic diagram of the structure of a touch module provided in an embodiment of the present disclosure;

[0033] Figure 2 A schematic diagram of the structure of another touch module provided by an embodiment of the present disclosure;

[0034] Figure 3 A schematic diagram of the structure of a touch display substrate provided in an embodiment of the present disclosure;

[0035] Figure 4 A schematic diagram of the structure of another touch display substrate provided in an embodiment of the present disclosure;

[0036] Figure 5 A flow chart of a touch control method provided by an embodiment of the present disclosure. DETAILED DESCRIPTION

[0037] In order to enable those skilled in the art to better understand the technical solution of the present disclosure, the touch module, touch display substrate, display device and touch method provided by the present disclosure are described in detail below with reference to the accompanying drawings.

[0038] Example embodiments will be described more fully below with reference to the accompanying drawings, but the example embodiments may be embodied in different forms and should not be construed as limited to the embodiments set forth herein. On the contrary, the purpose of providing these embodiments is to make the present disclosure thorough and complete and to enable those skilled in the art to fully understand the scope of the present disclosure.

[0039] The terms used herein are only used to describe specific embodiments and are not intended to limit the present disclosure. As used herein, the singular forms "a", "an" and "the" are also intended to include the plural forms, unless the context clearly indicates otherwise. It will also be understood that when the terms "comprising" and / or "made of" are used in this specification, the presence of the features, wholes, steps, operations, elements and / or components is specified, but the presence or addition of one or more other features, wholes, steps, operations, elements, components and / or groups thereof is not excluded.

[0040] It will be understood that although the terms first, second, etc. may be used herein to describe various elements, these elements should not be limited to these terms. These terms are only used to distinguish one element from another element. Therefore, without departing from the teachings of the present disclosure, the first element, first component, or first module discussed below may be referred to as the second element, second component, or second module.

[0041] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art. It will also be understood that terms such as those defined in commonly used dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art and the present disclosure, and will not be interpreted as having an idealized or overly formal meaning unless explicitly defined as such herein.

[0042] Figure 1 FIG. 1 is a schematic diagram of a touch module provided in an embodiment of the present disclosure. Figure 1 As shown, the touch module includes: a touch module 1 and a touch chipset 2 .

[0043] The touch module 1 has a plurality of functional areas 11 sequentially arranged along a first direction.

[0044] The touch chipset 2 includes a plurality of touch chips 21 connected in pairs; the touch chipset 2 is used to respond to the touch data acquired by the touch module 1, determine the touch type according to the touch data, and send the touch data to the main control end by one of the plurality of touch chips 21 corresponding to the determined touch type; wherein each touch chip 21 corresponds to a functional area 11, and is used to receive the touch data of the functional area 11 corresponding thereto.

[0045] In some embodiments, the touch control chipset 2 is also called a cascade chip.

[0046] In some embodiments, a driving signal may be provided to each functional area 11 simultaneously to reduce driving time and improve synchronization.

[0047] In some embodiments, multiple functional areas 11 and their corresponding touch chips 21 can be set based on the same-screen partition structure or the split-screen structure, that is, the entire touch screen can be partitioned based on an algorithm, and the determined multiple areas can be used as multiple functional areas 11, or multiple touch screens can be spliced ​​together, and a single physical touch screen can be used as the functional area 11; in some embodiments, for the connection position of any two functional areas 11, specifically, the connection of two areas under the same-screen partition structure or the splicing of two screens under the split-screen structure, it is necessary to perform algorithm synchronization on the sending side of the touch module to prevent the touch sensing at the connection position from being out of sync.

[0048] In some embodiments, the main control end is also called a host end, which includes a central processing unit (CPU), which is used to determine the touch position according to the touch data and instruct the touch module and the display module to perform a touch response.

[0049] In some embodiments, the touch module further includes: a glass substrate and a transparent protective layer; the touch module 1 is arranged between the glass substrate and the transparent protective layer; the touch module 1 includes a plurality of touch electrodes and a plurality of sensing electrodes, and an interlayer insulating layer arranged between a layer where the plurality of touch electrodes are located and a layer where the plurality of sensing electrodes are located, and the orthographic projections of the plurality of touch electrodes and the plurality of sensing electrodes on the glass substrate intersect to realize mutual capacitive touch, and, in some embodiments, a driving signal can be sent to the touch electrodes of each functional area at the same time to reduce the driving time; or in some embodiments, the touch module 1 includes a plurality of touch sensing electrode blocks formed based on a metal grid, and, in some embodiments, a driving signal can be sent to the touch sensing electrode blocks of each functional area at the same time to reduce the driving time and improve the reporting rate, and in some embodiments, the size of a single touch sensing electrode block can be 4.2mm*4.2mm.

[0050] The disclosed embodiment provides a touch module, which includes a touch module and a touch chipset. The touch module is divided into multiple functional areas. The touch chipset includes multiple touch chips connected in pairs. Each touch chip corresponds to a point touch type, thereby avoiding the difficulty in adapting to medium-sized and large-sized screens due to the small number of channels corresponding to the touch chip. In addition, multiple touch chips can process data simultaneously, thereby improving computing power.

[0051] Figure 2 The structure diagram of another touch module provided by the embodiment of the present disclosure is as follows. Specifically, the structure is based on Figure 1 A specific optional implementation scheme of the touch module shown in FIG. 1 ; illustratively, the touch module has two functional areas, corresponding to which are two chips; Figure 2 As shown, the touch module includes a first functional area 101 and a second functional area 102 sequentially arranged along a first direction, and the touch chipset includes a first chip 201 corresponding to the first functional area 101 and a second chip 202 corresponding to the second functional area 102 .

[0052] It should be noted that the drawings of the embodiments of the present disclosure only illustrate the structures and connection relationships of the components by way of example, wherein the size relationships of the components in the drawings do not impose any restrictions on the components of the present disclosure, and in actual applications, their sizes can be designed based on actual needs and component characteristics.

[0053] In some embodiments, the touch type includes an object touch type and a finger touch type, wherein the object touch type is a non-finger touch type, such as touch through a capacitive pen, etc.; the first chip 201 corresponds to one of the object touch type and the finger touch type, and the second chip 202 corresponds to the other of the object touch type and the finger touch type.

[0054] In some embodiments, each touch chip includes a first serial peripheral interface, the first serial peripheral interfaces of the plurality of touch chips are connected in pairs, and the plurality of touch chips transmit data to each other through their respective first serial peripheral interfaces. Figure 2 As shown, taking the first chip 201 and the second chip 202 as an example, the first serial peripheral interface 311 of the first chip 201 is connected to the first serial peripheral interface 312 of the second chip 202 .

[0055] In some embodiments, each touch control chip further includes a second serial peripheral interface, and each touch control chip is connected to an off-chip memory via the second serial peripheral interface. Figure 2As shown, taking the first chip 201 and the second chip 202 as examples, the first chip 201 is connected to the off-chip memory through its second serial peripheral interface 321, and the second chip 202 is connected to the off-chip memory through its second serial peripheral interface 322; in some embodiments, the off-chip memory may be a flash memory (Flash), and the off-chip memory may be set on the touch module side or the main control end side; in some embodiments, the corresponding functional logic can be written into the touch chip based on the off-chip memory to implement logical function configuration, such as writing the functional logic of the first chip 201 processing the touch data corresponding to the object touch type and the second chip 202 processing the touch data corresponding to the finger touch type into the first chip 201 and the second chip 202 based on the off-chip memory.

[0056] In some embodiments, each touch chip includes an on-chip memory and a microcontroller unit (MCU); each touch chip is configured to determine a touch type according to the received touch data of the corresponding functional area; in response to the determined touch type corresponding to itself, its own microcontroller unit sends the touch data to the main control end; in response to the determined touch type not corresponding to itself, the touch data is transmitted to another chip corresponding to the touch type through its own first serial peripheral interface, so that the microcontroller unit of the other chip sends the touch data to the main control end. Figure 2 As shown, taking the first chip 201 and the second chip 202 as examples, where, illustratively, the first chip 201 corresponds to the object touch type, and the second chip 202 corresponds to the finger touch type; the first chip 201 includes an on-chip memory 331 and a micro control unit 341, and the second chip includes an on-chip memory 332 and a micro control unit 342; the first chip 201 is configured to determine the touch type according to the touch data of the first functional area 101, and in response to the determined touch type being the object touch type, the micro control unit 341 sends the touch data to the main control end, and in response to the determined touch type being the finger touch type, the first serial peripheral interface 311 is used to control the touch type. The touch data is transmitted to the second chip 202, and, in response to the touch data sent by the second chip 202, the touch data is sent to the main control end by the micro control unit 341; the second chip 202 is configured to determine the touch type according to the touch data of the second functional area 102, and in response to the determined touch type being a finger touch type, the touch data is sent to the main control end by the micro control unit 342, and in response to the determined touch type being an object touch type, the touch data is transmitted to the first chip 201 through the first serial peripheral interface 312, and, in response to the touch data sent by the first chip 201, the touch data is sent to the main control end by the micro control unit 342.

[0057] In some embodiments, the on-chip memory may be static random access memory (SRAM).

[0058] In some embodiments, each touch chip includes a serial bus interface; each touch chip is configured to transmit touch data to the main control terminal through its own serial bus interface. Figure 2 As shown, taking the first chip 201 and the second chip 202 as an example, the first chip 201 transmits the touch data to the main control end through its serial bus interface 351 , and the second chip 202 transmits the touch data to the main control end through its serial bus interface 352 .

[0059] Therefore, based on the structures and interface settings in the above embodiments, data transmission between touch chips, functional configuration of touch chips, data processing of touch chips, and data transmission between touch chips and the main control terminal can be realized.

[0060] Figure 3 FIG. 1 is a schematic diagram of a touch display substrate provided in an embodiment of the present disclosure. Figure 3 As shown, the touch display substrate includes a display module 4 and a touch module 5 arranged on the display surface side of the display module 4, wherein the touch module can be any touch module in the above embodiments.

[0061] In some embodiments, the display module 4 is an organic light emitting diode (OLED) display module or an active matrix OLED (AMOLED) display module. Figure 3 As shown, the display module 4 includes: an encapsulation layer 401, a light-emitting layer 402 and a substrate 403 which are stacked in sequence along a direction away from the display surface side; in some embodiments, the light-emitting layer 402 is located between the anode and the cathode, and the light-emitting layer may include functional layers such as a hole injection layer, a hole transport layer, an electroluminescent layer, an electron injection layer and an electron transport layer (not shown in the figure).

[0062] In some embodiments, Figure 3 As shown, the touch module further includes a glass substrate 503 and a transparent protective layer 501 , and a layer 502 where the touch module is located is located between the glass substrate 503 and the transparent protective layer 501 .

[0063] Figure 4 FIG. 1 is a schematic diagram of the structure of another touch display substrate provided in an embodiment of the present disclosure. Figure 4 As shown, the touch display substrate has a display area and a peripheral area surrounding the display area, and the touch module 1 is correspondingly arranged in the display area. By way of example, the figure shows a situation including two functional areas and two corresponding touch chips, which are respectively a first functional area 101 and a second functional area 102, and a first chip 201 corresponding to the first functional area 101, and a second chip 202 corresponding to the second functional area 102; the display module includes a driving chip 6, and the driving chip 6 is configured to provide a display signal to the display module.

[0064] like Figure 4 As shown, in (a), for the first chip 201 and the second chip 202, the two and the driver chip 6 are arranged on the same side of the peripheral area in the second direction; in (b), for the first chip 201 and the second chip 202, the two and the driver chip 6 are respectively arranged on two opposite sides of the peripheral area in the second direction.

[0065] In some embodiments, Figure 4 As shown, the first functional area 101 and the second functional area 102 include 85 sensing side (RX) channels, which are Figure 4 Y1 to Y 85 , and each corresponds to 32 touch side (TX) channels, respectively Figure 4 X1 to X 32 and X 33 To X 64 The first chip 201 processes and transmits the touch data of the first functional area 101, and the second chip 202 processes and transmits the touch data of the second functional area 102, thereby expanding the number of overall channels, and multiple chips in the multi-functional area can process data simultaneously, thereby improving the touch computing capability.

[0066] The embodiments of the present disclosure further provide a display device, comprising: a touch display substrate according to any one of the above embodiments.

[0067] Figure 5 Flow chart of a touch control method provided by an embodiment of the present disclosure. Specifically, the method can be applied to any of the touch control modules, touch control display substrates and display devices in the above embodiments; Figure 5 As shown, the method includes:

[0068] Step S1, acquiring touch data.

[0069] Wherein, touch data is acquired through multiple functional areas of the touch module.

[0070] Step S2: Determine the touch type according to the touch data.

[0071] Step S3: One of the touch control chips corresponding to the determined touch type sends the touch data to the main control end.

[0072] In step S3, the touch data is sent to the main control end so that the main control end can determine the touch position, and then the touch module and the display module can be instructed to make a touch response based on the determined touch position.

[0073] It will be appreciated by those skilled in the art that all or some of the steps in the method disclosed above, the functional modules / units in the device may be implemented as software, firmware, hardware, and appropriate combinations thereof. In hardware implementations, the division between the functional modules / units mentioned in the above description does not necessarily correspond to the division of physical components; for example, a physical component may have multiple functions, or a function or step may be performed by several physical components in cooperation. Some physical components or all physical components may be implemented as software executed by a processor, such as a central processing unit, a digital signal processor, or a microprocessor, or implemented as hardware, or implemented as an integrated circuit, such as an application-specific integrated circuit. Such software may be distributed on a computer-readable medium, which may include a computer storage medium (or non-transitory medium) and a communication medium (or temporary medium). As known to those skilled in the art, the term computer storage medium includes volatile and non-volatile, removable and non-removable media implemented in any method or technology for storing information (such as computer-readable instructions, data structures, program modules, or other data). Computer storage media include, but are not limited to, RAM, ROM, EEPROM, flash memory or other memory technology, CD-ROM, digital versatile disks (DVD) or other optical disk storage, magnetic cassettes, magnetic tapes, magnetic disk storage or other magnetic storage devices, or any other medium that can be used to store the desired information and can be accessed by a computer. In addition, it is well known to those of ordinary skill in the art that communication media typically contain computer-readable instructions, data structures, program modules, or other data in a modulated data signal such as a carrier wave or other transport mechanism, and may include any information delivery media.

[0074] Example embodiments have been disclosed herein, and although specific terms are employed, they are used and should be interpreted only in a general illustrative sense and not for limiting purposes. In some instances, it will be apparent to those skilled in the art that, unless otherwise expressly noted, features, characteristics, and / or elements described in conjunction with a particular embodiment may be used alone or in combination with features, characteristics, and / or elements described in conjunction with other embodiments. Therefore, those skilled in the art will appreciate that various changes in form and detail may be made without departing from the scope of the present disclosure as set forth in the appended claims.

Claims

1. A touch module, wherein: include: A touch module having a plurality of functional areas sequentially arranged along a first direction; A touch chip set, including a plurality of touch chips connected in pairs; The touch control chipset is used to respond to the touch data acquired by the touch control module, determine the touch type according to the touch data, and send the touch data to the main control end by one of the plurality of touch control chips corresponding to the determined touch type; Wherein, each of the touch control chips corresponds to one of the functional areas and is used to receive touch data of the functional area corresponding thereto; Each of the touch control chips comprises a first serial peripheral interface, the first serial peripheral interfaces of the plurality of touch control chips are connected in pairs, and the plurality of touch control chips transmit data to each other through their respective first serial peripheral interfaces; Each of the touch control chips includes an on-chip memory and a micro control unit; Each of the touch control chips is configured to determine the touch type according to the received touch data of the corresponding functional area; In response to the determination that the touch type corresponds to itself, its own microcontroller unit sends the touch data to the main control end; in response to the determination that the touch type does not correspond to itself, the touch data is transmitted to another chip corresponding to the touch type through its own first serial peripheral interface, so that the microcontroller unit of the other chip sends the touch data to the main control end.

2. The touch module according to claim 1, wherein: The touch control module includes a first functional area and a second functional area sequentially arranged along the first direction, and the touch control chipset includes a first chip corresponding to the first functional area and a second chip corresponding to the second functional area.

3. The touch module according to claim 2, wherein: The touch types include: object touch type and finger touch type.

4. The touch module according to claim 1, wherein: Also includes: Glass substrate and transparent protective layer; The touch module is disposed between the glass substrate and the transparent protective layer; The touch module includes a plurality of touch electrodes and a plurality of sensing electrodes, and an interlayer insulating layer disposed between a layer where the plurality of touch electrodes are located and a layer where the plurality of sensing electrodes are located, and the orthographic projections of the plurality of touch electrodes and the plurality of sensing electrodes on the glass substrate intersect.

5. The touch module according to claim 1, wherein: Each of the touch control chips further comprises a second serial peripheral interface, and each of the touch control chips is connected to an off-chip memory via the second serial peripheral interface.

6. The touch module according to claim 1, wherein: Each of the touch control chips includes a serial bus interface; Each of the touch control chips is configured to transmit the touch data to the main control end through its own serial bus interface.

7. A touch display substrate, wherein: include: A display module and a touch module arranged on a display surface side of the display module; The touch module adopts the touch module as claimed in any one of claims 1 to 6.

8. The touch display substrate according to claim 7, wherein: The touch display substrate has a display area and a peripheral area surrounding the display area; The display module includes a driving chip, and the driving chip is configured to provide a display signal to the display module; The touch chipset of the touch module and the driving chip are arranged on the same side of the peripheral area in the second direction, or the touch chipset and the driving chip are respectively arranged on two opposite sides of the peripheral area in the second direction.

9. A display device, wherein: include: The touch display substrate according to claim 7 or 8.

10. A touch control method, wherein: Applied to the touch module according to any one of claims 1 to 6, the method comprises: Get touch data; Determine a touch type according to the touch data; One of the plurality of touch control chips corresponding to the determined touch type sends the touch data to the main control end so that the main control end can determine the touch position.

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