Patent Application
20190369786
The present disclosure relates to the field of wearable device technologies, and more particularly to a touch screen, a touch detection method, and a wearable device.
With the development of communication technologies, wearable devices have been widely used. Moreover, in order to improve human-computer interaction, more and more wearable devices are beginning to employ touch screen technologies. In the related art, the touch and display modules are generally designed to be uniform. That is, a conductive layer of ITO (Indium Tin Oxide) is added on the display screen, and the conductive layer is protected by hard glass. However, touch screens employing ITO will reduce the brightness of the touch screens and increase the hardware cost of the touch screens.
In view of this, the present disclosure provides a touch screen, a touch detection method, and a wearable device, to solve the deficiencies in the related art.
According to a first aspect of embodiments of the present disclosure, a touch screen is provided. The touch screen includes: a touch flexible printed circuit (FPC), a cover with a touch area, and a main board with a display screen. A surface of the touch FPC is attached to a rear surface of the touch area, and another surface of the touch FPC is placed on the display screen. An area of the touch FPC covering the display screen is smaller than a display area of the display screen. The touch screen is configured to sense a touch operation of the touch area by the touch FPC, and to determine a touch position and/or a touch track of the touch operation.
According to a second aspect of embodiments of the present disclosure, a touch detection method is provided. The method is applicable to a touch screen. The touch screen includes: a touch flexible printed circuit (FPC), a cover with a touch area, and a main board with a display screen. A surface of the touch FPC is attached to a rear surface of the touch area, and another surface of the touch FPC is placed on the display screen. An area of the touch FPC covering the display screen is smaller than a display area of the display screen. The method includes: receiving a touch operation by the touch area; and sensing the touch operation by the touch FPC, and determining a touch position and/or a touch track of the touch operation.
According to a third aspect of embodiments of the present disclosure, an apparatus is provided. The apparatus includes one or more processors, a memory, and one or more programs. The one or more programs has been stored in the memory. When being executed by the one or more processors, the one or more programs perform the touch detection method according to the second aspect of embodiments of the present disclosure.
According to a fourth aspect of embodiments of the present disclosure, a non-volatile computer storage medium is provided. The non-volatile computer storage medium has thereon stored one or more programs. When the one or more programs are executed by a device, the device is caused to perform the touch detection method according to the second aspect of embodiments of the present disclosure.
According to a fifth aspect of embodiments of the present disclosure, a wearable device is provided. The wearable device includes the touch screen described by the above technical solution, and performs the touch detection method described by the above technical solution.
It should be understood that, general description above and detailed description below are only exemplary and explanatory, and are not intended to limit the present disclosure.
The accompanying drawings herein are incorporated into the specification and constitute part of the specification, which illustrate embodiments consistent with the present disclosure, and are configured to explain principle of the present disclosure together with the specification.
Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description relates to the accompanying drawings, the same numbers in different accompanying drawings represent the same or similar elements, unless otherwise specified. The implementations described below in the exemplary embodiments do not represent all implementations consistent with the present disclosure. Instead, they are merely examples of devices and methods consistent with aspects of the present application as detailed in the appended claims.
The terminology used in the present disclosure is for the purpose of describing exemplary examples only and is not intended to limit the present disclosure. As used in the present disclosure and the appended claims, the singular forms “a,” “an” and “the” are intended to include the plural forms as well, unless the context clearly indicates otherwise. It shall also be understood that the terms “or” and “and/or” used herein are intended to signify and include any or all possible combinations of one or more of the associated listed items.
It shall be understood that, although the terms “first,” “second,” “third,” and the like may be used herein to describe various information, the information should not be limited by these terms. These terms are only used to distinguish one category of information from another. For example, without departing from the scope of the present disclosure, first information may be termed as second information; and similarly, second information may also be termed as first information. As used herein, the term “if” may be understood to mean “when” or “upon” or “in response to” depending on the context.
The touch screen is configured to sense a touch operation of the touch area 12 by the touch FPC 11, and to determine a touch position and/or a touch track of the touch operation.
In the embodiment, the touch FPC 11 may be attached to the below of the cover 13 to form a touch area on the cover 13, i.e., the touch area 12. A user may realize a touch operation on the touch area 12, for example, slide up and down, slide left and right and click. The touch area 12 may be divided by the touch FPC 11 into a plurality of small areas (for example, 6 small areas as illustrated by the dotted line in the touch area 12 in
The touch screen may be a projected capacitive touch screen, and is very suitable for a wearable device with a small screen. The cover 13 may be non-metallic. The main board 15 may be a PCB (Printed Circuit Board). The display screen 14 may be an OLED (Organic Light Emitting Display) display or an LCD (Liquid Crystal Display) display.
In addition, in order to improve human-computer interaction, more and more wearable devices begin to employ touch screen technologies. In the related art, touch screens employing ITO will reduce the brightness of the touch screens and increase the cost of the touch screens. However, the touch screen in the present disclosure employs FPC, and the purpose thereof is to utilize the advantages of low cost and simple assembly of FPC. In addition, since the transmittance of ITO cannot reach 100%, the utilizing of ITO reduces the brightness of the touch screen. However, the touch screen employing FPC, and the touch FPC 11 does not cover all the display area of the display screen 14. Therefore, the touch screen employing FPC will not affect the brightness of the touch screen, but improve the brightness of the touch screen.
It may be seen from the above embodiment, the touch screen of the present disclosure employs the touch FPC, and the touch FPC does not cover all display area of the display screen, thereby improving the brightness of the touch screen and reducing the hardware cost of the touch screen.
In addition, the present disclosure may be a touch screen implementation solution designed for a product with a smaller screen, which may reduce the hardware cost of the product, i.e., replace ITO with FPC, thereby improving the brightness of the touch screen and reducing the material and assembly cost of the touch screen.
In an embodiment, the touch FPC 11 has a strip structure disposed around the display screen 14. As illustrated in
In an embodiment, the touch FPC 11 may include a capacitance sensing circuit and a capacitance detecting circuit connected to the capacitance sensing circuit. The capacitance sensing circuit is configured to sense the touch operation of the touch area 12. The capacitance detecting circuit is configured to determine the touch position and/or the touch track of the touch operation of the touch area 12.
In the embodiment, the capacitance sensing circuit and the capacitance detecting circuit are both located on the touch FPC 11. The touch area 12 may be divided by the touch FPC 11 into a plurality of small areas. Therefore, the touch FPC 11 may sense the touch operation occurring in each small area through the capacitance sensing circuit distributed in each small area, and the touch position and/or the touch track of the touch operation may be determined by the capacitance detecting circuit.
In an embodiment, the touch FPC 11 may include a capacitance sensing circuit. The main board 15 may include a capacitance detecting circuit connected to the capacitance sensing circuit. The capacitance sensing circuit is configured to sense the touch operation of the touch area 12. The capacitance detecting circuit is configured to determine the touch position and/or the touch track of the touch operation of the touch area 12.
In the embodiment, the capacitance sensing circuit is located on the touch FPC 11, and the capacitance detecting circuit is located on the main board 15. The touch area 12 may be divided by the touch FPC 11 into a plurality of small areas. Therefore, the touch FPC 11 may sense the touch operation occurring in each small area through the capacitance sensing circuit distributed in each small area, and sends the sensed information to the capacitance detecting circuit on the main board 15. The capacitance detecting circuit on the main board 15 may determine the touch position and/or the touch track of the touch operation.
In an embodiment, the capacitance sensing circuit on the touch FPC 11 may include a transmitting electrode and a receiving electrode. The capacitance sensing circuit is configured to, when determining that the touch operation of the touch area 12 is sensed by a capacitance change between the transmitting electrode and the receiving electrode, transmit capacitance change information to the capacitance detecting circuit. The capacitance detecting circuit is configured to determine the touch position and/or the touch track of the touch operation of the touch area 12 based on the capacitance change information.
As illustrated in
As illustrated in
In the embodiment, the touch screen employs a mutual capacitance detection mode, and the measurement object is a capacitance between adjacent sensing electrodes, i.e., a capacitance between TX and RX. As illustrated in
In an embodiment, the main board 15 includes a micro control unit MCU. The MCU is configured to determine an execution instruction corresponding to the touch position and/or the touch track of the touch area 12, and to execute the execution instruction. The display screen 14 is configured to display an execution result corresponding to the execution instruction.
As illustrated in
At block 610, a touch operation is received by the touch area. The touch operation may be performed by the user in the touch area 12, such as, sliding up and down, sliding left and right, clicking.
At block 620, the touch operation is sensed by the touch FPC, and a touch position and/or a touch track of the touch operation is determined.
In an embodiment, the touch FPC includes a capacitance sensing circuit and a capacitance detecting circuit connected to the capacitance sensing circuit. When the action in the block 620 is performed, the following specific actions may be employed.
The touch operation of the touch area is sensed by the capacitance sensing circuit.
The touch position and/or the touch track of the touch operation is determined by the capacitance detecting circuit on the touch FPC.
In an embodiment, the touch FPC includes a capacitance sensing circuit. The main board includes a capacitance detecting circuit connected to the capacitance sensing circuit. When the action in the block 620 is performed, the following specific actions may be employed.
The touch operation of the touch area is sensed by the capacitance sensing circuit.
The touch position and/or the touch track of the touch operation is determined by the capacitance detecting circuit on the main board.
In an embodiment, the capacitance sensing circuit includes a transmitting electrode and a receiving electrode. When sensing the touch operation of the touch area by the capacitance sensing circuit, the following specific actions may be employed.
When determining that the touch operation is sensed by a capacitance change between the transmitting electrode and the receiving electrode, capacitance change information is transmitted to the capacitance detecting circuit.
In an embodiment, the main board includes a micro control unit MCU. As illustrated in
At block 710, an execution instruction corresponding to the touch position and/or the touch track of the touch operation is determined by the MCU, and the execution instruction is executed by the MCU.
At block 720, an execution result corresponding to the execution instruction is displayed by the display screen.
It may be seen from the above embodiment that the touch FPC is employed, and the touch FPC does not cover all display area of the display screen, thereby improving the brightness of the touch screen and reducing the hardware cost of the touch screen.
In addition, the present disclosure may be a touch screen implementation solution designed for a product with a smaller screen, which may reduce the hardware cost of the product, i.e., replace ITO with FPC, thereby improving the brightness of the touch screen and reducing the material and assembly cost of the touch screen.
Correspondingly, the present disclosure further provides a wearable device. The wearable device includes the touch screen illustrated in any of the above-mentioned
As can be seen from the above embodiments, the present disclosure applies the FPC touch screen to the wearable device, which has a better cost advantage while implementing the touch screen.
It is easy for the skilled in the art to think of another implementation of the present disclosure after considering the disclosure of the specification and practice. The present disclosure is intended to cover any variations, uses or adaptations of the present disclosure. This variations, uses or adaptations follow general principles of the present disclosure and include common knowledge or conventional techniques in the field of the technology not disclosed by the present disclosure. The specification and embodiments are merely exemplary, and the true scope and spirit of this present disclosure is indicated by the claim below.
It is also to be understood that the terms “comprise” or “include” or any other variations are intended to encompass a non-exclusive inclusion, such that a process, method, article, or device including a series of elements not only includes those elements, but also includes additional elements not explicitly listed, or elements that are inherent to such process, method, article, or device. An element that is defined by the phrase “comprising a . . . ” does not exclude the presence of additional elements in the process, method, article, or device that comprises the element.
The above description is only for the preferred embodiment of the present disclosure, and is not intended to limit the present disclosure. Any modifications, equivalent substitutions, improvements, etc. made within the spirit and scope of the present application are intended to be included within the scope of the present disclosure.
| Number | Date | Country | Kind |
|---|---|---|---|
| 201810271619.4 | Mar 2018 | CN | national |
This application is a U.S. national phase of International Application No. PCT/CN2018/112697, which claims priority to Chinese Patent Application No. 201810271619.4, filed on Mar. 29, 2018 by ANHUI HUAMI INFORMATION TECHNOLOGY CO., LTD., and titled with “touch screen, touch detection method, and wearable device”, the entirety of which is incorporated by reference herein.
| Filing Document | Filing Date | Country | Kind |
|---|---|---|---|
| PCT/CN2018/112697 | 10/30/2018 | WO | 00 |
