CN112539699B - Laser-assisted positioning display device and method - Google Patents
Laser-assisted positioning display device and method Download PDFInfo
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- CN112539699B CN112539699B CN202011345281.6A CN202011345281A CN112539699B CN 112539699 B CN112539699 B CN 112539699B CN 202011345281 A CN202011345281 A CN 202011345281A CN 112539699 B CN112539699 B CN 112539699B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02D—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE
- Y02D30/00—Reducing energy consumption in communication networks
- Y02D30/70—Reducing energy consumption in communication networks in wireless communication networks
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Abstract
The invention belongs to the technical field of display, and particularly discloses a laser-assisted positioning display device and a laser-assisted positioning display method. The device comprises a display device screen, linear laser transmitters, linear laser receivers and a controller, wherein a plurality of virtual keys for executing corresponding operations are arranged in an operable area, the linear laser transmitters are arranged on two adjacent display device frames, the linear laser receivers are arranged on two adjacent display device frames opposite to the linear laser transmitters, and the controller is used for calculating the specific operation position in the operable area, acquiring virtual key information corresponding to the operation position and converting the virtual key information into target information. The method comprises the steps that a controller controls a linear laser transmitter to transmit linear laser to linear laser receivers which are arranged in one-to-one correspondence with the linear laser transmitters, the operation position is calculated, and the operation position is converted into target information. The invention has the characteristics of low cost, simple structure and good stability.
Description
Technical Field
The invention belongs to the technical field of display, and particularly relates to a laser-assisted positioning display device and a laser-assisted positioning display method.
Background
With the expansion of the market, display devices are applied to more fields, and application modes tend to be diversified. When the size of the existing display device is smaller, piezoresistors, pressure-sensitive capacitors, photosensitive elements and the like are mostly arranged at the rear part of the display screen, so that the capturing and positioning of operation are realized, the requirements on the precision of components are higher, the cost is high, and the size of the display device is limited; when the size is larger, the external equipment is relied on to finish corresponding operation, the integrated device is not provided, the portable device is inconvenient to carry, and the portable device is easily influenced by factors such as external illumination, temperature and the like.
Based on the above-mentioned defects and shortcomings, there is a need in the art to make further improved designs for the existing display devices, to construct a display device with simple structure and stable performance, and to solve the problems of high precision and limited size of the original in the display device in the prior art.
Disclosure of Invention
Aiming at the defects or improvement demands of the prior art, the invention provides a laser auxiliary positioning display device and a method, wherein the laser auxiliary positioning display device is correspondingly designed by combining the characteristics of the display device and the auxiliary positioning process characteristics thereof, and the structures and the specific setting modes of key components such as a display device screen, a linear laser emitter, a linear laser receiver and a controller are researched and designed, so that the problems of inconvenient carrying, high cost and easy liquid entering of a display device gap can be effectively solved, and the auxiliary positioning of the display device is realized by laser due to the anti-interference characteristics of the laser.
In order to achieve the above object, according to one aspect of the present invention, there is provided a laser-assisted positioning display device including a display device screen, a linear laser emitter, a linear laser receiver, and a controller, wherein,
the display device screen comprises an operable area and a display device frame arranged around the operable area, wherein a plurality of virtual keys for executing corresponding operations are arranged in the operable area, and the virtual keys are used for blocking the transmission of laser emitted by the linear laser emitters when executing the corresponding operations;
the linear laser transmitters are arranged on the frames of two adjacent display devices and used for transmitting laser;
the linear laser receivers are arranged on two adjacent frames of the display device opposite to the linear laser transmitters and are used for receiving laser emitted by the linear laser transmitters;
the controller is used for acquiring a key value of a virtual key correspondingly displayed in an operable area according to the time of the linear laser transmitter transmitting laser and the position of the linear laser receiver which does not receive the laser due to the obstruction of the corresponding operation, and converting the key value into target information.
As a further preferred aspect, the linear laser transmitter includes a first linear laser transmitter and a second linear laser transmitter, and the linear laser receiver includes a first linear laser receiver and a second linear laser receiver, where the first linear laser transmitter is disposed corresponding to the first linear laser receiver, and the second linear laser transmitter is disposed corresponding to the second linear laser receiver;
the first linear laser transmitter, the second linear laser transmitter, the first linear laser receiver and the second linear laser receiver are all in communication with the controller.
As a further preferable mode, a plurality of first linear laser transmitters and first linear laser receivers are arranged, and the plurality of first linear laser transmitters and first linear laser receivers are arranged in a one-to-one correspondence; the second linear laser transmitters and the second linear laser receivers are provided with a plurality of second linear laser transmitters and the second linear laser receivers in one-to-one correspondence.
As a further preferred feature, the controller comprises a laser emission control module, a time counting module, a positioning calculation module, and a corresponding operation conversion module, wherein,
the laser emission control module is used for controlling the linear laser emitter to emit linear laser;
the time counting module is used for calculating the time of delay received by the linear laser receiver caused by the shielding of the laser emitted by the linear laser emitter due to the corresponding operation;
the positioning calculation module acquires the position of a blocking area, which is corresponding to a virtual key displayed in an operable area by a controller, of the linear laser receiver, which is not received by the linear laser receiver due to the blocking of the corresponding operation in the time period according to the time of the linear laser transmitter transmitting laser and the time of delaying the linear laser receiver due to the blocking of the corresponding operation;
and the operation conversion module acquires virtual key information corresponding to the operation position according to the position of the virtual key and the key value of the virtual key, and converts the virtual key information into target information.
As a further preferred option, the linear laser transmitter and the linear laser receiver are fixedly connected with the screen of the display device by means of bolts and/or adhesion.
As a further preferable mode, the virtual key hiding system further comprises a virtual key awakening module, a virtual key hiding module and a hiding timer, wherein the virtual key awakening module is used for sensing corresponding operation and awakening the virtual key after sensing the corresponding operation, the virtual key hiding module is used for hiding the virtual key in the appointed time when the virtual key is not operated, and the hiding timer is used for recording the time when the virtual key is not operated and triggering the virtual key hiding module when the time when the virtual key is not operated reaches the appointed time.
According to another aspect of the invention, a method for laser-assisted positioning is also provided, which is implemented by using the display device.
As a further preference, the method comprises the steps of:
step one: the controller controls the linear laser transmitters to transmit linear laser to linear laser receivers which are arranged in one-to-one correspondence with the linear laser transmitters;
step two: virtual keys which are operated in the operable areas and used for executing corresponding operations are used for displaying function key information when the corresponding operations are executed, and the corresponding operations obstruct the transmission of laser emitted by the linear laser emitters when the corresponding operations are executed;
step three: the controller obtains the virtual key position corresponding to the operation position in the time period according to the time of the laser emitted by the linear laser emitter, the position of the linear laser receiver which does not receive the laser due to the obstruction of the corresponding operation and the time of the linear laser receiver which delays receiving the laser, and converts the key value into target information according to the key value of the virtual key at the position.
As a further preferred aspect, in the third step, the calculation model of the position of the operation is:
x 1 <X<x 2
y 1 <Y<y 2
wherein X is a position value of an operation position along the horizontal direction of an operation area, Y is a position value of the operation position along the vertical direction of the operation area, X1 is a position value of a former linear laser emitter at the operation position along the vertical direction of the operation area, X2 is a position value of a latter linear laser emitter at the operation position along the vertical direction of the operation area, Y1 is a position value of a former linear laser receiver at the operation position along the horizontal direction of the operation area, and Y2 is a position value of a latter linear laser receiver at the operation position along the horizontal direction of the operation area;
according to the interval where the operation positions (X, Y) are located, the virtual display key positions are in one-to-one correspondence, so that external input information is transmitted to the controller, and the controller converts the input information into target information.
As a further preferable aspect, the second step further includes the steps of:
before operating the virtual key for executing corresponding operation in the operable area, the virtual key is also required to be awakened;
the third step also comprises the following steps: and hiding the virtual key after the corresponding operation is not executed within the appointed time.
In general, compared with the prior art, the above technical solution conceived by the present invention mainly has the following technical advantages:
1. the invention provides a simple and practical mode, and under the condition that the original display device assembly is not changed in a complex way, the problems of inconvenient carrying, high cost and easy liquid feeding in a gap of the display device can be effectively solved by using the linear laser emitter, the laser receiver and the like, and the auxiliary positioning of the display device realized by the laser has the characteristics of low cost, simple structure and good stability due to the anti-interference characteristic of the laser.
2. The device is convenient to seal, is not easy to generate gaps, can effectively solve the problem of liquid seepage of the gaps of the screen layers of the display device, and has the advantages of good manufacturability, easy realization, simplicity, convenience, low cost and the like. The display device without the touch control component has the touch control function.
Drawings
FIG. 1 is a schematic view of a display device with laser assisted positioning according to a preferred embodiment of the present invention;
FIG. 2 is a schematic diagram of a display device for laser assisted positioning according to a preferred embodiment of the present invention;
FIG. 3 is a schematic diagram of the display device bezel, linear laser transmitter, and linear laser receiver involved in FIG. 1;
fig. 4 is a schematic structural diagram of a display device with laser assisted positioning according to embodiment 2 of the present invention;
fig. 5 is a schematic diagram of the operation of a laser assisted positioning display device according to a preferred embodiment of the present invention.
Like reference numerals denote like technical features throughout the drawings, in particular: 1-display device screen, 2-operable area, 3-linear laser transmitter, 4-linear laser receiver, 5-display device bezel, 6-operating position, 7-linear laser, 8-virtual key.
Detailed Description
The present invention will be described in further detail with reference to the drawings and examples, in order to make the objects, technical solutions and advantages of the present invention more apparent. It should be understood that the specific embodiments described herein are for purposes of illustration only and are not intended to limit the scope of the invention. In addition, the technical features of the embodiments of the present invention described below may be combined with each other as long as they do not collide with each other.
The device comprises a display device screen, linear laser transmitters, linear laser receivers and a controller, wherein the display device screen comprises an operable area and a display device frame, a plurality of virtual keys capable of displaying corresponding operations are arranged in the operable area, the linear laser transmitters are arranged on two adjacent display device frames, the linear laser receivers are arranged on two adjacent display device frames opposite to the linear laser transmitters, and the controller calculates the specific operation positions in the operable area, acquires virtual key information corresponding to the operation positions, converts the virtual key information into target information and transmits the target information with other devices. The method comprises the steps that a controller controls linear laser transmitters to transmit linear laser to linear laser receivers which are arranged in one-to-one correspondence with the linear laser transmitters, the operation position is calculated, and the operation position is converted into target content. The invention can effectively solve the problems of inconvenient carrying, high cost and easy liquid entering in the gap of the display device, and has the characteristics of low cost, simple structure and good stability.
Specifically, as shown in fig. 1, fig. 2, fig. 3, fig. 4 and fig. 5, the display device for laser assisted positioning provided by the embodiment of the invention is a simple and practical manner, and under the condition that the original display device assembly is not changed in a complex manner, the problems of inconvenient carrying, high cost and easy liquid feeding in a gap of the display device can be effectively solved by using a line laser emitter, a laser receiver and the like, and the display device is assisted in positioning by laser due to the anti-interference characteristic of the laser, so that the display device has the characteristic of good stability. The device is respectively designed with two sections of line laser transmitters and two sections of laser receivers, and the length is determined by the length and the width of an operable area of the display. The device can be arranged in the outer frame of the display device and outside the display screen, can also improve the existing display device, is attached to the edge of the screen of the existing display device in a sticking and bolting mode and completes operation tasks together with a matched control unit of the positioning device. More specifically, the display device comprises a display device screen 1, a linear laser transmitter 3, a linear laser receiver 4 and a controller, wherein the display device screen 1 comprises an operable area 2 and a display device frame arranged around the operable area 2, and a plurality of virtual keys for executing corresponding operations are arranged in the operable area 2 and used for blocking the transmission of laser emitted by the linear laser transmitter 3 when the corresponding operations are executed; the linear laser transmitters 3 are arranged on the frames of two adjacent display devices and are used for transmitting laser; the linear laser receiver 4 is arranged on two adjacent frames of the display device opposite to the linear laser transmitter 3 and is used for receiving the laser emitted by the linear laser transmitter 3; the controller is configured to calculate a corresponding operation position according to a time when the linear laser transmitter 3 transmits laser light, a position of the linear laser receiver 4 that does not receive the laser light due to the obstruction of the corresponding operation, and a time when the linear laser receiver 4 delays receiving the laser light, where the position corresponds to a virtual key, that is, a key value of the virtual key is obtained according to the virtual key corresponding to the corresponding operation position, and the key value is converted into target information.
In the invention, the linear laser transmitter 3 comprises a first linear laser transmitter and a second linear laser transmitter, and the linear laser receiver 4 comprises a first linear laser receiver and a second linear laser receiver, wherein the first linear laser transmitter is arranged corresponding to the first linear laser receiver, and the second linear laser transmitter is arranged corresponding to the second linear laser receiver; the first linear laser transmitter, the second linear laser transmitter, the first linear laser receiver and the second linear laser receiver are all in communication with the controller. The first linear laser transmitters and the first linear laser receivers are arranged in a plurality, and the first linear laser transmitters and the first linear laser receivers are arranged in a one-to-one correspondence manner; the second linear laser transmitters and the second linear laser receivers are provided with a plurality of second linear laser transmitters and the second linear laser receivers in one-to-one correspondence.
In a preferred embodiment of the present invention, the controller includes a laser emission control module, a time counting module, a positioning calculation module, and a corresponding operation conversion module, wherein the laser emission control module is used for controlling the linear laser emitter 3 to emit linear laser light; the time counting module is used for calculating the time when the laser emitted by the linear laser emitter 3 is blocked by the linear laser receiver 4 from receiving the laser due to operation shielding; the positioning calculation module calculates the position of the virtual key according to the time of the laser emitted by the linear laser emitter 3 and the position of the linear laser receiver 4 which does not receive the laser due to the obstruction of the virtual key; the operation conversion module obtains information of corresponding operation according to the position of the virtual key and the time of the linear laser receiver 4 for delaying receiving the linear laser at the position of the virtual key.
Preferably, the linear laser transmitter 3 and the linear laser receiver 4 are fixedly connected with the display device screen 1 through bolts and/or adhesion.
Preferably, the invention further comprises a virtual key awakening module, a virtual key hiding module and a hiding timer, wherein the virtual key awakening module is used for sensing corresponding operation and awakening the virtual key after sensing the corresponding operation, the virtual key hiding module is used for hiding the virtual key in the appointed time when the virtual key is not operated, and the hiding timer is used for recording the time when the virtual key is not operated and triggering the virtual key hiding module when the time when the virtual key is not operated reaches the appointed time. In the invention, the virtual key wake-up module comprises an infrared sensor for identifying the corresponding operation of a person, and correspondingly, the sensor for identifying the corresponding operation can be selected according to an executor for sending the corresponding operation.
The working flow of the device is as follows:
step one: the controller controls the linear laser emitters 3 to emit linear laser light to the linear laser receivers 4 arranged in one-to-one correspondence with the linear laser emitters 3.
Step two: a virtual key for performing the corresponding operation is operated in the operable area 2, and the virtual key is used for blocking the transmission of the laser light emitted by the linear laser emitter 3 when the corresponding operation is performed.
Step three: the controller is configured to calculate a key value of the corresponding operation key according to a position where the linear laser transmitter 3 transmits laser light, which is blocked from the linear laser light transmission due to the operation. Wherein. That is, the controller calculates a virtual key position corresponding to the operation position for the period of time according to the time when the laser transmitter emits the laser, the position of the linear laser receiver which does not receive the laser due to the obstruction of the corresponding operation, and the time when the linear laser receiver delays receiving the laser, and converts the key value into the target information according to the key value of the virtual key at the position. The calculation model of the position of the operation is as follows:
x 1 <X<x 2
y 1 <Y<y 2
wherein X is a position value of an operation position along the horizontal direction of an operation area, Y is a position value of the operation position along the vertical direction of the operation area, X1 is a position value of a former linear laser emitter at the operation position along the vertical direction of the operation area, X2 is a position value of a latter linear laser emitter at the operation position along the vertical direction of the operation area, Y1 is a position value of a former linear laser receiver at the operation position along the horizontal direction of the operation area, and Y2 is a position value of a latter linear laser receiver at the operation position along the horizontal direction of the operation area;
according to the interval where the operation positions (X, Y) are located, the virtual display key positions are in one-to-one correspondence, so that external input information is transmitted to the controller, and the controller converts the input information into target information.
The laser auxiliary positioning display device is convenient to seal, is not easy to generate gaps, can effectively solve the problem of liquid seepage of the gaps of the screen layers of the display device, and has the advantages of good manufacturability, easiness in realization, simplicity, convenience, low cost and the like. The display device without the touch control component has the touch control function.
Further, the second step further comprises the following steps:
before operating the virtual key for executing corresponding operation in the operable area, the virtual key is also required to be awakened; the third step also comprises the following steps: and hiding the virtual key after the corresponding operation is not executed within the appointed time.
Example 1
In this embodiment, two sections of line laser transmitters and two sections of laser receivers are respectively designed, and the length is determined by the length and the width of the operable area of the display. The device can be arranged in the outer frame of the display device and outside the display screen, can also improve the existing display device, is attached to the edge of the screen of the existing display device in a sticking and bolting mode and completes operation tasks together with a matched control unit of the positioning device.
The laser receiver and the laser transmitter are embedded in the inner side of the frame of the display device, are guaranteed to be positioned on the same plane, and are arranged on the outer side of the screen of the display device, so that the purpose of positioning can be achieved without a sensor. The laser receiver and the laser transmitter are stuck and connected to the outer side of the frame of the display device by bolts and are positioned on the same plane, so that the existing display device is refitted or improved.
Example 2
In this embodiment, the computer keyboard may be integrated in the operable area, and the buttons on the computer keyboard are positioned, so that the buttons clicked by the keyboard area are identified, specifically, characters on the computer keyboard for inputting instructions are used as virtual keys and are arranged in the operable area 2, and accordingly, the linear laser transmitters and the linear laser receivers are installed around the frame of the display device. When the positioning operation is carried out, the virtual key is pressed, so that the virtual key prevents the linear laser receiver from receiving the laser emitted by the corresponding linear laser emitter, and the controller is used for calculating the position of the virtual key according to the time of the linear laser emitter emitting the laser and the position of the linear laser receiver which does not receive the laser due to the obstruction of the virtual key.
It will be readily appreciated by those skilled in the art that the foregoing description is merely a preferred embodiment of the invention and is not intended to limit the invention, but any modifications, equivalents, improvements or alternatives falling within the spirit and principles of the invention are intended to be included within the scope of the invention.
Claims (9)
1. The display device for laser assisted positioning is characterized by comprising a display device screen (1), a linear laser emitter (3), a linear laser receiver (4) and a controller, wherein,
the display device screen (1) comprises an operable area (2) and a display device frame arranged around the operable area (2), wherein a plurality of virtual keys for executing corresponding operations are arranged in the operable area (2) and are used for blocking the transmission of laser emitted by the linear laser emitter (3) when executing corresponding operations;
the linear laser transmitters (3) are arranged on the frames of two adjacent display devices and are used for transmitting laser;
the linear laser receiver (4) is arranged on two adjacent frames of the display device opposite to the linear laser transmitter (3) and is used for receiving laser emitted by the linear laser transmitter (3);
the controller is used for acquiring a key value of a virtual key correspondingly displayed in the operable area (2) according to the time of the linear laser transmitter (3) transmitting laser and the position of the linear laser receiver (4) which does not receive the laser due to the obstruction of the corresponding operation, and converting the key value into target information;
the controller comprises a laser emission control module, a time counting module, a positioning calculation module and a corresponding operation conversion module, wherein,
the laser emission control module is used for controlling the linear laser emitter (3) to emit linear laser;
the time counting module is used for calculating the time of delay received by the linear laser receiver (4) caused by the shielding of the laser emitted by the linear laser emitter (3) due to the corresponding operation;
the positioning calculation module acquires the position of a shielding area, which is corresponding to a virtual key displayed in the operable area (2) by the controller, of the linear laser transmitter (3) and is not received by the linear laser receiver (4) due to shielding of the corresponding operation in the time period according to the time of the linear laser transmitter (3) for transmitting laser and the time of delaying being received by the linear laser receiver (4) due to shielding of the corresponding operation;
and the operation conversion module acquires virtual key information corresponding to the operation position according to the position of the virtual key and the key value of the virtual key, and converts the virtual key information into target information.
2. A laser assisted positioned display device according to claim 1, characterized in that the linear laser transmitter (3) comprises a first linear laser transmitter and a second linear laser transmitter, the linear laser receiver (4) comprises a first linear laser receiver and a second linear laser receiver, wherein the first linear laser transmitter is arranged in correspondence with the first linear laser receiver and the second linear laser transmitter is arranged in correspondence with the second linear laser receiver;
the first linear laser transmitter, the second linear laser transmitter, the first linear laser receiver and the second linear laser receiver are all in communication with the controller.
3. The laser assisted positioning display device according to claim 2, wherein a plurality of first linear laser transmitters and first linear laser receivers are provided, and a plurality of first linear laser transmitters and first linear laser receivers are provided in one-to-one correspondence; the second linear laser transmitters and the second linear laser receivers are provided with a plurality of second linear laser transmitters and the second linear laser receivers in one-to-one correspondence.
4. A laser assisted positioning display device according to claim 1, characterized in that the linear laser transmitter (3) and the linear laser receiver (4) are fixedly connected with the display device screen (1) by means of bolts and/or adhesive.
5. The laser assisted positioning display device according to claim 1, further comprising a virtual key wake-up module, a virtual key hiding module and a hiding timer, wherein the virtual key wake-up module is configured to sense a corresponding operation and wake up the virtual key after sensing the corresponding operation, the virtual key hiding module is configured to hide the virtual key in a specified time when the virtual key is not operated, and the hiding timer is configured to record a time when the virtual key is not operated and trigger the virtual key hiding module when the time when the virtual key is not operated reaches the specified time.
6. A method of laser assisted positioning, characterized in that it is implemented with a display device as claimed in any one of claims 1-5.
7. A method of laser assisted positioning according to claim 6, comprising the steps of:
step one: the controller controls the linear laser transmitters (3) to transmit linear laser to the linear laser receivers (4) which are arranged in one-to-one correspondence with the linear laser transmitters (3);
step two: operating virtual keys for performing respective operations within the operable area (2) for displaying function key information when the respective operations are performed, the respective operations obstructing the transfer of laser light emitted by the linear laser emitters (3) when the respective operations are performed;
step three: the controller obtains the virtual key position corresponding to the operation position in the time period according to the time of the laser emitted by the linear laser emitter (3), the position of the linear laser receiver (4) which does not receive the laser due to the obstruction of the corresponding operation and the time of the linear laser receiver (4) which delays receiving the laser, and converts the key value into target information according to the key value of the virtual key at the position.
8. The method of claim 6, wherein in step three, the calculation model of the position of the operation is:
x 1 <X<x 2
y 1 <Y<y 2
wherein X is a position value of an operation position along the horizontal direction of an operation area, Y is a position value of the operation position along the vertical direction of the operation area, X1 is a position value of a former linear laser emitter at the operation position along the vertical direction of the operation area, X2 is a position value of a latter linear laser emitter at the operation position along the vertical direction of the operation area, Y1 is a position value of a former linear laser receiver at the operation position along the horizontal direction of the operation area, and Y2 is a position value of a latter linear laser receiver at the operation position along the horizontal direction of the operation area;
according to the interval where the operation positions (X, Y) are located, the virtual display key positions are in one-to-one correspondence, so that external input information is transmitted to the controller, and the controller converts the input information into target information.
9. The method of claim 6, wherein the second step further comprises the steps of:
before operating the virtual key for executing corresponding operation in the operable area (2), the virtual key is also required to be awakened;
the third step also comprises the following steps: and hiding the virtual key after the corresponding operation is not executed within the appointed time.
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| CN202011345281.6A CN112539699B (en) | 2020-11-26 | 2020-11-26 | Laser-assisted positioning display device and method |
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| CN103702151A (en) * | 2013-11-25 | 2014-04-02 | 何文林 | Man-computer interaction remote control device and method for intelligent television and touch control screen |
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| CN108008907A (en) * | 2017-12-27 | 2018-05-08 | 上海传英信息技术有限公司 | A kind of input equipment and input method based on dummy keyboard |
| CN111107406A (en) * | 2019-12-20 | 2020-05-05 | 视联动力信息技术股份有限公司 | Control method and device of display terminal and storage medium |
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| CN104423723A (en) * | 2013-09-04 | 2015-03-18 | 鼎亿数码科技(上海)有限公司 | Touch screen |
| CN103702151A (en) * | 2013-11-25 | 2014-04-02 | 何文林 | Man-computer interaction remote control device and method for intelligent television and touch control screen |
| CN106980417A (en) * | 2017-03-27 | 2017-07-25 | 何章印 | A kind of contactless key system based on laser scanning |
| CN108008907A (en) * | 2017-12-27 | 2018-05-08 | 上海传英信息技术有限公司 | A kind of input equipment and input method based on dummy keyboard |
| CN111107406A (en) * | 2019-12-20 | 2020-05-05 | 视联动力信息技术股份有限公司 | Control method and device of display terminal and storage medium |
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