CN106896962B - Touch screen and electronic device - Google Patents

Abstract

The present invention provides a touch screen and an electronic device. The touch screen includes a first touch area and a second touch area. The first touch area is used to respond to a user's non-contact control of the touch screen, and the second touch area is used to respond to the user's non-contact control. Contact touch control for this touch screen. The present invention divides the touch screen of the electronic device into a first touch area and a second touch area, the first touch area responds to non-contact control, and the second touch area responds to contact touch control. There is no need to open a hole on the electronic device to set the distance sensor, which saves the manufacturing cost of the electronic device and improves the utilization rate of the screen of the electronic device.

Description

Touch screen and electronic device

technical field

The present invention relates to the technical field of electronic devices, and in particular, to a touch screen and an electronic device.

Background technique

At present, with the continuous development of electronic device technology, touch screen electronic devices have been widely popularized, and have become a must-have for people's work and life. For the convenience of use, the touch-screen electronic device will obtain the distance between the face and the touch-screen electronic device through the distance sensor in the electronic device during a call, and control the touch-screen of the electronic device accordingly to prevent the user from accidentally touching touch operation.

The principle of the current distance sensor is to emit infrared rays through an infrared diode. After being reflected by a close-range object, the infrared detector measures the distance by receiving the intensity of the infrared rays. Generally, the effective distance is within 10cm. When the distance sensor detects that an object is in a close state, the touch screen of the electronic device is turned off, and when the distance sensor detects that the object is not in a close state, the touch screen of the electronic device is turned on.

However, the distance sensor is generally bulky and expensive, and requires openings on the electronic device to transmit and receive infrared rays. In the case of affecting the overall appearance of the electronic device, it is not convenient for the thin and light design of the electronic device.

SUMMARY OF THE INVENTION

Embodiments of the present invention provide a touch screen and an electronic device, which can reduce the manufacturing cost of the electronic device and improve the utilization rate of the screen of the electronic device.

An embodiment of the present invention provides a touch screen, including: a first touch area and a second touch area, the first touch area is used to respond to a user's non-contact control on the touch screen, and the second touch area is used to Responsive to a user's tactile touch control of the touch screen.

An embodiment of the present invention further provides an electronic device, including a touch screen and a display screen, wherein the display screen and the touch screen are arranged in layers.

The present invention provides a touch screen and an electronic device. The touch screen of the electronic device is divided into a first touch area and a second touch area. The first touch area responds to non-contact control and the second touch area responds to contact touch control. Therefore, the function of the distance sensor is realized through the first touch area, and the distance sensor does not need to be opened on the electronic device, the manufacturing cost of the electronic device is saved, and the utilization rate of the screen of the electronic device is improved.

Description of drawings

FIG. 1 is an exploded schematic diagram of an electronic device provided by an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a touch screen provided by an embodiment of the present invention.

FIG. 3 is another schematic structural diagram of a touch screen provided by an embodiment of the present invention.

FIG. 4 is another schematic structural diagram of a touch screen provided by an embodiment of the present invention.

FIG. 5 is a schematic diagram of an induced electric field of a touch screen provided by an embodiment of the present invention.

FIG. 6 is a schematic diagram of another induced electric field of a touch screen provided by an embodiment of the present invention.

FIG. 7 is another schematic diagram of an induced electric field of a touch screen provided by an embodiment of the present invention.

FIG. 8 is a schematic diagram of yet another induced electric field of the touch screen provided by an embodiment of the present invention.

Detailed ways

Please refer to the drawings in the accompanying drawings, wherein like reference numerals represent like components, the principles of the present invention are exemplified by implementation in a suitable environment. The following description is based on exemplified specific embodiments of the invention and should not be construed as limiting other specific embodiments of the invention not detailed herein.

As used in this specification, the word "embodiment" means serving as an instance, instance, or illustration. In addition, as used in this specification and the appended claims, the article "a" may generally be construed to mean "one or more" unless specified otherwise or clear from context to a singular form.

In the description of the present invention, 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 invention 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 of the present invention.

In the description of the present invention, it should be noted that the terms "installed", "connected" and "connected" should be understood in a broad sense, unless otherwise expressly specified and limited, 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 the present invention can be understood according to specific situations.

In addition, 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 in direct contact Rather, they are contacted by 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 being 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 invention. In order to simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are only examples and are not intended to limit the invention. Furthermore, the present disclosure may repeat reference numerals and/or reference letters in different instances for the purpose of simplicity and clarity and not in itself indicative of a relationship between the various embodiments and/or arrangements discussed. In addition, the present disclosure 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 , the electronic device of this embodiment includes a display screen 10 , a touch screen 20 , a printed circuit board 30 , a battery 40 and a back cover 50 .

The display screen 10 is a display area. The display area 10 can be used to display the picture of the electronic device or for the user to perform touch manipulation or the like.

The touch screen 20 is stacked under the display screen 10 . The touch screen 20 includes a first touch area 21 and a second touch area 22 . The first touch area 21 and the second touch area 22 are provided with driving electrodes TX and sensing electrodes RX. The driving electrode TX and the sensing electrode RX are coupled to each other to generate a coupling capacitance, which will generate an induced electric field. When the human body or other conductors touch the induced electric field, the current of the induced electric field will decrease accordingly. The electronic device detects the change of the capacitance of the induced electric field, Determine where the human body or other conductors touch. When the electronic device is in a call state, the voltage value of the driving electrode TX of the first touch area 21 is higher than the preset threshold, and the induced electric field is strong, and the first touch area 21 responds to the user's non-contact touch screen. control that can detect a wider range of touch sensing.

The printed circuit board 30 includes a control circuit, and the control circuit can be a mainboard, which is electrically connected to the touch screen 20 .

The battery 40 is installed in the back cover 50 and is electrically connected to the printed circuit board 30 to provide power to the electronic device.

The back cover 50 includes a body 51 and a side frame 52 that can be embedded in the body 51. The side frame 52 extends toward the display screen 10, so that the display screen 10, the side frame 52 and the body 51 can be embedded with each other to form a closed space .

Please refer to 2. The touch screen 100 of this embodiment includes a first touch area 101 , a second touch area 102 and an area boundary 103 . The area boundary line 103 is the boundary line between the first touch area 101 and the second touch area 102 . The position of the first touch area 101 is set in the upper half area of the touch screen, and the length of the side of the first touch area 101 in the direction parallel to the width of the touch screen 100 is equal to the width of the touch screen. When the electronic device is in a call state, the voltage value of the TX channel on the first touch area 101 is higher than a preset threshold, and the first touch area 101 responds to the user's non-contact control of the touch screen. The voltage value of the TX channel on the second touch area 102 does not change, and the second touch area 102 responds to the user's contact touch control on the touch screen.

Referring to FIG. 3 , the touch screen 200 of this embodiment includes a first touch area 201 , a second touch area 202 and an area boundary 203 . The area boundary line 203 is the boundary line between the first touch area 201 and the second touch area 202 . The position of the first touch area 201 is set in the left half area of the touch screen, and the length of the side of the first touch area 201 in the direction parallel to the length of the touch screen 200 is equal to the length of the touch screen. When the electronic device is in a call state, the voltage value of the TX channel on the first touch area 201 is higher than a preset threshold, and the first touch area 201 responds to the user's non-contact control of the touch screen. The voltage value of the TX channel on the second touch area 202 does not change, and the second touch area 202 responds to the user's contact touch control on the touch screen.

Referring to FIG. 4 , the touch screen 300 of this embodiment includes a first touch area 301 , a second touch area 302 and an area boundary 303 . The area boundary line 303 is the boundary line between the first touch area 301 and the second touch area 302 . The first touch area 301 is circular, and the center of the first touch area 301 falls on the center of the touch screen 300 . When the electronic device is in a call state, the voltage value of the TX channel on the first touch area 301 is higher than a preset threshold, and the first touch area 301 responds to the user's non-contact control of the touch screen. The voltage value of the TX channel on the second touch area 302 does not change, and the second touch area 302 responds to the user's contact touch control on the touch screen.

Please refer to FIG. 5 and FIG. 6 , the touch screen includes a first touch area 401 , a second touch area 402 , a first driving electrode 403 , a first sensing electrode 404 , a second driving electrode 405 and a second sensing electrode 406 . The first driving electrodes 403 and the first sensing electrodes 404 are disposed on the first touch area 401 . The second driving electrodes 405 and the second sensing electrodes 406 are disposed on the second touch area 402 .

The first driving electrode 403 and the first sensing electrode 404 are coupled to each other to generate a coupling capacitance. The second driving electrode 405 and the second sensing electrode 406 are coupled to each other to generate a coupling capacitance. The coupling capacitor will generate an induced electric field, the first induced electric field generated by the first touch area 401 is the first induced electric field, and the second touch area 402 is generated by the second induced electric field. When the human body or other conductors touch the induced electric field, the current of the induced electric field will decrease accordingly, and the electronic device determines the position where the human body or other conductors touch by detecting the change of the current of the induced electric field.

In one embodiment, when the electronic device is in a call state, as shown in FIG. 5 , the voltage value of the first driving electrode of the first touch area 401 is higher than a preset threshold, and a strong induced electric field is generated. The touch area 401 can detect a larger touch range in response to the user's non-contact control of the touch screen. The first touch area 401 can be used to sense the distance between the human body and the electronic device when the electronic device is in a call state, that is, when the first touch area 401 senses a change in the current of the first induced electric field, it can be considered that the human body is close to the human body In the electronic device, the touch screen display is turned off to prevent the user's accidental touch operation. The voltage value of the second driving electrode 405 of the second touch area 402 remains unchanged, the second touch area 402 responds to the user's contact touch control on the touch screen, and the second touch area 402 can continue to obtain the user's second touch Touch operations on the area 402, such as answering a call, inputting a number, and ending a call. When the electronic device is not talking, as shown in FIG. 6 , the voltage value of the first driving electrode 403 of the first touch area 401 is equal to the voltage value of the second driving electrode 405 of the second touch area 402 . The strength of the first induced electric field of 401 is equal to the strength of the second induced electric field of the second touch area 402 , while responding to the user's contact touch control on the touch screen.

Please refer to FIG. 7 and FIG. 8 , the touch screen includes a first touch area 501 , a second touch area 502 , a first driving electrode 503 , a first sensing electrode 504 , a second driving electrode 505 , a second sensing electrode 506 and a floating control chip 507. The first driving electrodes 503 and the first sensing electrodes 504 are disposed on the first touch area 501 . The second driving electrodes 505 and the second sensing electrodes 506 are disposed on the second touch area 502 . The suspension control chip 507 is electrically connected to the first driving electrode 503 .

The first driving electrode 503 and the first sensing electrode 504 are coupled to each other to generate a coupling capacitance. The second driving electrode 505 and the second sensing electrode 506 are coupled to each other to generate a coupling capacitance. The coupling capacitor will generate an induced electric field, the first induced electric field generated by the first touch area 501 is the first induced electric field, and the second touch area 502 is generated by the second induced electric field. When the human body or other conductors touch the induced electric field, the current of the induced electric field will decrease accordingly, and the electronic device determines the position where the human body or other conductors touch by detecting the change of the current of the induced electric field.

In one embodiment, when the electronic device is in a talking state, as shown in FIG. 7 , the suspension control chip 507 is driven to generate a control current signal, and the control current signal passes through the first driving electrode 503 , and the When the voltage value is higher than the preset threshold, a strong induced electric field will be generated, and the first touch area 501 can detect a larger touch range in response to the user's non-contact control on the touch screen. The first touch area 501 can be used to sense the distance between the human body and the electronic device when the electronic device is in a call state, that is, when the first touch area 501 senses a change in the current of the first induced electric field, it can be considered that the human body is close to the human body In the electronic device, the touch screen display is turned off to prevent the user's accidental touch operation. The voltage value of the second driving electrode 505 of the second touch area 502 remains unchanged, the second touch area 502 responds to the user's contact touch control on the touch screen, the second touch area 502 can continue to obtain the user's Touch operations on the touch area 502, such as answering a call, inputting a number, and ending a call. When the electronic device is not talking, as shown in FIG. 8 , the floating control chip 507 is turned off, and the voltage value of the first driving electrode 503 of the first touch area 501 is equal to the voltage of the second driving electrode 505 of the second touch area 502 value, the intensity of the first induced electric field of the first touch area 501 is equal to the intensity of the second induced electric field of the second touch area 502, and responds to the user's touch control on the touch screen.

In summary, the present invention provides a touch screen and an electronic device. The touch screen includes: a first touch area and a second touch area. The first touch area is used to respond to a user's non-contact control of the touch screen, so The second touch area is used to respond to a user's contact touch control on the touch screen. By dividing the touch screen of the electronic device into a first touch area and a second touch area, the first touch area responds to non-contact control, and the second touch area responds to contact touch control. There is no need to open a hole on the electronic device to set the distance sensor, which saves the manufacturing cost of the electronic device and improves the utilization rate of the screen of the electronic device.

While the invention has been shown and described with respect to one or more implementations, equivalent variations and modifications will occur to those skilled in the art based on a reading and understanding of this specification and the accompanying drawings. The present invention includes all such modifications and variations and is limited only by the scope of the appended claims. In particular with respect to the various functions performed by the above-described components, the terms used to describe such components are intended to correspond to any component that performs the specified function of the component (eg, which is functionally equivalent) (eg, which is functionally equivalent) (unless otherwise indicated) , even if it is not structurally equivalent to the disclosed structure that performs the functions of the exemplary implementations of the specification shown herein. Furthermore, although a particular feature of this specification has been disclosed with respect to only one of several implementations, such feature may be combined with one or more of the other implementations as may be desired and advantageous for a given or particular application Other feature combinations. Also, to the extent that the terms "including," "having," "containing," or variations thereof, are used in the detailed description or the claims, such terms are intended to include in a manner similar to the term "comprising."

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 (9)

1. A touch screen, comprising: a first touch area, a second touch area, a floating control chip, and an area boundary, the area boundary being the difference between the first touch area and the second touch area The boundary line, the first touch area and the second touch area are both provided with driving electrodes and sensing electrodes, and the floating control chip is connected to the driving electrodes of the first touch area. When the electronic device is in a call state, the The floating control chip is driven, the voltage value of the driving electrodes of the first touch area is higher than a preset threshold, the first touch area is used to respond to the user's non-contact control of the touch screen, and the voltage value of the second touch area is higher than the preset threshold. The voltage value of the driving electrode remains unchanged, and the second touch area is used to respond to the user's touch control on the touch screen. 2 . The touch screen according to claim 1 , wherein the position of the first touch area is set in the upper half area of the touch screen or the position of the first touch area is set in the lower half area of the touch screen. 3 . . 3 . The touch screen of claim 2 , wherein a length of a side of the first touch area along a direction parallel to the width of the touch screen is equal to the width of the touch screen. 4 . 4 . The touch screen of claim 1 , wherein the position of the first touch area is set in the left half area of the touch screen or the position of the first touch area is set in the right half area of the touch screen 4 . . 5 . The touch screen of claim 4 , wherein a length of a side of the first touch area along a direction parallel to the length of the touch screen is equal to the length of the touch screen. 6 . 6 . The touch screen of claim 1 , wherein the shape of the first touch area is a circle, and the center of the circle of the first touch area falls on the center point of the touch screen. 7 . 7 . The touch screen of claim 1 , wherein when the electronic device is not talking, the voltage value of the driving electrodes of the first touch area is equal to the voltage value of the driving electrodes of the second touch area, and the The first touch area is used to respond to a user's contact touch control on the touch screen. 8 . The touch screen of claim 1 , wherein when the electronic device is not talking, the floating control chip is turned off, and the voltage value of the driving electrodes of the first touch area is equal to the voltage value of the driving electrodes of the second touch area. 9 . Voltage value. 9 . An electronic device, characterized in that it comprises the touch screen according to any one of claims 1 to 8 and a display screen, wherein the display screen and the touch screen are arranged in layers. 10 .

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