CN109597530B - Display device and screen positioning method - Google Patents
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- CN109597530B CN109597530B CN201811392658.6A CN201811392658A CN109597530B CN 109597530 B CN109597530 B CN 109597530B CN 201811392658 A CN201811392658 A CN 201811392658A CN 109597530 B CN109597530 B CN 109597530B
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
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Abstract
The embodiment of the application provides a display device and a screen positioning method, wherein the display device comprises: a display screen; the dot matrix layer is arranged on the surface of the display screen and comprises a plurality of code points, and the appointed area of the dot matrix layer is used for reflecting the light wave with the preset frequency emitted to the appointed area, wherein the light wave emitted by the display screen does not comprise the light wave with the preset frequency; and the processing unit is used for acquiring a target dot matrix image generated according to the light wave with the preset frequency reflected by the appointed area and determining the position of the appointed area on the surface of the display screen according to the target dot matrix image. Through the design, on one hand, the production cost and the production complexity are reduced, and on the other hand, the positioning accuracy of the display screen is improved.
Description
Technical Field
The application relates to the technical field of screen positioning, in particular to a display device and a screen positioning method.
Background
At present, a touch device can be used to operate a display screen, and the operation position of the touch device needs to be located in the operation process. In the related art, there are generally several implementations as follows:
firstly, the touch screen is realized by adopting a traditional resistance and capacitance touch screen; secondly, an electromagnetic induction touch technology is adopted for realization; thirdly, infrared transmitting and receiving geminate transistors are installed on the periphery of the operation interface to form a crossed infrared matrix on the operation interface, when information is input, infrared rays are blocked by fingers or other media, namely, light paths are blocked, and the operation position of the fingers or other media on the display screen can be determined according to the detected loss change of the light.
The above-mentioned several have certain disadvantages: in the first mode, the production cost is in direct proportion to the area of the required operation interface, and the cost is very high under the condition of a large operation interface; in addition, the capacitive touch screen is realized based on current induction of a human body, is generally designed mainly for fingers of a user, is difficult to operate through other media (such as a touch pen and the like), and has poor effect when the handwritten information is input smoothly. The second way, on the one hand, is that the radiation is large, and on the other hand, when the required operation interface is large, the production cost is high. The third mode realizes positioning by shielding infrared rays, and determines that the positioning precision is very limited in principle, so that the requirements of users are difficult to meet.
Disclosure of Invention
In view of the above, the present application provides a display device and a screen positioning method to at least partially improve the above problem.
In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:
in a first aspect, an embodiment of the present application provides a display device, including:
a display screen;
the dot matrix layer is arranged on the surface of the display screen and comprises a plurality of code points, and the appointed area of the dot matrix layer is used for reflecting the light wave with the preset frequency emitted to the appointed area, wherein the light wave emitted by the display screen does not comprise the light wave with the preset frequency; and
and the processing unit is used for acquiring a target dot matrix image generated according to the light wave with the preset frequency reflected by the designated area and determining the position of the designated area on the surface of the display screen according to the target dot matrix image.
Optionally, the display device further comprises:
the light-emitting device is used for emitting light waves with the preset frequency to the designated area; and
and the camera imaging unit is used for receiving the light wave with the preset frequency reflected by the appointed area and generating the target dot matrix image according to the light wave with the preset frequency reflected by the appointed area.
Optionally, the light emitting device and the camera imaging unit are integrally provided.
Optionally, the code points can reflect the light wave of the preset frequency, and the other areas on the lattice layer except for the plurality of code points can absorb the light wave of the preset frequency;
and the target code point positioned in the appointed area in the plurality of code points included by the dot matrix layer is used for reflecting the light wave with the preset frequency transmitted to the appointed area.
Optionally, the dot matrix layer is a transparent film printed with the plurality of code points, and the code points are printed by adopting a material containing gold or silver.
Optionally, the code points can absorb the light wave of the preset frequency, and the other areas on the lattice layer except for the plurality of code points can reflect the light wave of the preset frequency;
and the target area positioned in the appointed area in the other areas included in the lattice layer is used for reflecting the light wave of the preset frequency emitted to the appointed area.
Optionally, the plurality of code points are divided into more than one code region; the processing unit is specifically configured to:
identifying the target dot matrix diagram, and determining a target code area where the center of the designated area is located; acquiring the absolute position of the target code area on the surface of the display screen and the relative position of the center of the designated area in the target code area; and determining the absolute position of the center of the designated area on the surface of the display screen according to the absolute position and the relative position.
In a second aspect, an embodiment of the present application further provides a screen positioning method, which is applied to a display device, where the display device includes a display screen and a dot matrix layer disposed on a surface of the display screen, the dot matrix layer includes a plurality of code points, the code points can reflect light waves with a preset frequency, and other areas on the dot matrix layer except the code points can absorb the light waves with the preset frequency, where the light waves emitted by the display screen do not include the light waves with the preset frequency; the method comprises the following steps:
emitting the light wave with the preset frequency to a designated area on the surface of the display screen, so that a target code point positioned in the designated area in the plurality of code points reflects the light wave with the preset frequency;
receiving the light wave with the preset frequency reflected by the target code point, and generating a target dot matrix diagram according to the received light wave;
and determining the position of the designated area on the surface of the display screen according to the target dot matrix diagram.
Optionally, the plurality of code points are divided into more than one code region; determining the position of the designated area on the surface of the display screen according to the target bitmap, wherein the determining comprises the following steps:
identifying the target dot matrix diagram, and determining a target code area where the center of the designated area is located;
acquiring the absolute position of the target code area on the surface of the display screen and the relative position of the center of the designated area in the target code area;
and determining the absolute position of the center of the designated area on the surface of the display screen according to the absolute position and the relative position.
In a third aspect, an embodiment of the present application further provides a screen positioning method, which is applied to a display device, where the display device includes a display screen and a dot matrix layer disposed on a surface of the display screen, the dot matrix layer includes a plurality of code points, the code points can absorb a light wave with a preset frequency, and other areas on the dot matrix layer except the code points can reflect the light wave with the preset frequency, where the light wave emitted by the display screen does not include the light wave with the preset frequency; the method comprises the following steps:
emitting the light waves with the preset frequency to a designated area on the surface of the display screen, so that the light waves with the preset frequency are reflected by a target area located in the designated area in the other areas;
receiving the light wave with the preset frequency reflected by the target area, and generating a target dot-matrix diagram according to the received light wave;
and determining the position of the designated area on the surface of the display screen according to the target dot matrix diagram.
Compared with the prior art, the embodiment of the application has the following beneficial effects:
according to the display device and the screen positioning method provided by the embodiment of the application, the display device comprises: a display screen; the dot matrix layer is arranged on the surface of the display screen and comprises a plurality of code points, and the appointed area of the dot matrix layer is used for reflecting the light wave with the preset frequency emitted to the appointed area, wherein the light wave emitted by the display screen does not comprise the light wave with the preset frequency; and the processing unit is used for acquiring a target dot matrix image generated according to the light wave with the preset frequency reflected by the designated area and determining the position of the designated area on the surface of the display screen according to the target dot matrix image. Through the design, on one hand, the production cost and the production complexity are reduced, and on the other hand, the positioning accuracy of the display screen is improved.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings that are required to be used in the embodiments will be briefly described below, it should be understood that the following drawings only illustrate some embodiments of the present application and therefore should not be considered as limiting the scope, and for those skilled in the art, other related drawings can be obtained from the drawings without inventive effort.
Fig. 1 is a schematic block diagram of a display device according to an embodiment of the present disclosure;
fig. 2 is a schematic block diagram of a display device provided in an embodiment of the present application;
fig. 3 is a schematic flowchart of a screen positioning method according to an embodiment of the present application;
FIG. 4 is a schematic diagram illustrating the sub-steps of step S33 shown in FIG. 3;
fig. 5 is a flowchart illustrating another screen positioning method according to an embodiment of the present application.
Icon: 100-a display device; 110-a display screen; 120-a lattice layer; 130-a processing unit; 140-a light emitting device; 150-camera imaging unit.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are some embodiments of the present application, but not all embodiments. The components of the embodiments of the present application, generally described and illustrated in the figures herein, can be arranged and designed in a wide variety of different configurations.
Thus, the following detailed description of the embodiments of the present application, presented in the accompanying drawings, is not intended to limit the scope of the claimed application, but is merely representative of selected embodiments of the application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.
It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.
Referring to fig. 1, fig. 1 is a block diagram of a display device 100 according to an embodiment of the present disclosure. The display device 100 includes a display screen 110, a dot matrix layer 120, and a processing unit 130.
The display screen 110 may be an active light-emitting screen such as a liquid crystal screen, a passive light-emitting screen such as a projection screen, or other display surfaces that can be controlled by a computer, and the specific type of the display screen 110 is not limited in this embodiment.
In this embodiment, the dot matrix layer 120 is disposed on the surface of the display screen 110, and the dot matrix layer 120 includes a plurality of code dots, and the size of the code dots is small, for example, 21.167 micrometers. The manufacturing process of the dot matrix layer 120 is simple, and can be completed only by relying on the traditional printing process, and the volume, the spatial layout and the like of the original display screen are basically not influenced. In detail, in one embodiment, the dot matrix layer 120 may be a film containing the plurality of code dots, and the film covers the surface of the display screen 110. In yet another embodiment, the plurality of code dots may be printed directly on the surface of the display screen 110 during the manufacturing process of the display screen 110.
Based on the above design, the display device 100 provided by the present embodiment can be manufactured at a lower production cost and with a simpler production process. In particular, when the display screen 110 of the display device 100 has a large area (for example, when the display screen 110 is a spliced video wall), the cost saving is further increased.
Further, the dot matrix layer 120 in the display device 100 provided by the present embodiment does not generate any radiation, and the power consumption of the dot matrix layer 120 in the display device 100 is much lower than the three screen touch manners in the related art described above.
In practice, a user can emit light waves with a predetermined frequency to a designated area of the display device 100 through a light-emitting device 140, and the designated area of the dot matrix layer 120 can receive the light waves with the predetermined frequency and reflect the light waves with the predetermined frequency, and then receive the light waves reflected by the designated area through a camera imaging unit 150 only aiming at the light waves with the predetermined frequency, so as to form a target dot matrix image corresponding to the designated area. Then, the processing unit 130 obtains the target dot matrix image, that is, the position of the designated area on the surface of the display screen 110 can be determined according to the target dot matrix image. The designated area is an operation area of the user on the dot matrix layer 120 (i.e., the surface of the display screen 110).
It should be noted that the light waves emitted from the display screen 110 do not include the light waves with the predetermined frequency, and may be non-visible light (e.g., infrared light), for example.
Through the design, the positioning precision of the specified area can be improved, and the precision can be more than 1/32 mm.
In this embodiment, the plurality of code points may be divided into more than one (including one) code region, and the code region includes a specific number of code points, for example, 6 × 6 code points. The specific number of code points may be arranged according to a specific rule, and the specific arrangement rule is not limited in this embodiment.
Based on this, the processing unit 130 may specifically be configured to:
identifying the target dot matrix diagram, and determining a target code area where the center of the designated area is located; acquiring the absolute position of the target code area on the surface of the display screen 110 and the relative position of the center of the designated area in the target code area; and determining the absolute position of the center of the designated area on the surface of the display screen 110 according to the absolute position and the relative position.
In a specific example, the code region includes an origin location column, and the location (absolute position) of the code region on the display screen 110 can be determined according to the origin location column. Accordingly, the absolute position of the target code region on the surface of the display screen 110 can be determined according to the positioning column of the origin in the target code region.
Optionally, as shown in fig. 2, in this embodiment, the display apparatus 100 may further include the light emitting device 140 and the camera imaging unit 150. As described above, the light emitting device 140 is used to emit light waves of the preset frequency to the designated area. The camera imaging unit 150 is configured to receive the light wave with the preset frequency reflected by the designated area, and generate the target dot matrix image according to the light wave with the preset frequency reflected by the designated area.
For example, when the light wave of the preset frequency is infrared light, the light emitting device 140 is correspondingly configured to emit infrared light, and the camera imaging unit 150 is configured to receive the infrared light and generate a corresponding target dot matrix image according to the received infrared light.
In this embodiment, in order to ensure that the light wave of the preset frequency emitted from the light emitting device 140 to the designated area of the dot matrix layer 120 can be received by the camera imaging unit 150 after being reflected by the designated area, the light emitting device 140 and the camera imaging unit 150 may be integrally disposed, and the light emitting position of the light emitting device 140 and the lens orientation of the camera imaging unit 150 may be consistent.
It should be noted that in some application scenarios, the light-emitting device 140 and the camera imaging unit 150 integrally disposed may also be referred to as a stylus device (or a scanning device). The processing unit 130 may be a sub-unit provided in the stylus device, or may be a unit for controlling display on the display screen 110. The unit for controlling the display of the display screen 110 may be a sub-unit in the display screen 110, or may be an independently arranged unit capable of communicating with the display screen 110 and the camera imaging unit 150, which is not limited in this embodiment.
In other words, the coordinate information of the designated area may be obtained by analyzing the target dot-matrix image by the sub-unit in the stylus device, and sent to the unit for controlling the display of the display screen 110, and the unit may control the display screen 110 to display according to the coordinate information. The stylus device may also directly send the target dot matrix image to a unit for controlling the display of the display screen 110, and the unit may analyze the coordinate information of the designated area from the target dot matrix image and control the display screen 110 to display.
Alternatively, in a specific embodiment, the code dots may be made of a material capable of reflecting the light wave of the predetermined frequency, and the other regions of the lattice layer 120 except for the plurality of code dots may be made of a material capable of absorbing the light wave of the predetermined frequency. Of course, the material of the other regions can also allow visible light to pass through to avoid affecting the normal display of the display screen 110.
In a specific example of the above embodiment, the lattice layer 120 may be a transparent film printed with the plurality of code dots, and the code dots are printed with a material containing gold or silver.
Accordingly, in the above case, when the light wave of the preset frequency is emitted to the designated area of the dot matrix layer 120, a code point (i.e., a target code point) located in the designated area among the plurality of code points included in the dot matrix layer 120 will reflect the light wave of the preset frequency.
In another embodiment, the code dots may be made of a material capable of absorbing the light wave of the predetermined frequency, for example, the code dots may be made of a carbon-containing material, and the other regions of the lattice layer 120 except for the plurality of code dots are made of a material capable of reflecting the light wave of the predetermined frequency. Of course, the material used to fabricate the other regions can reflect visible light, so as to avoid affecting the projection effect of the display screen 110.
In the above case, when the light wave of the preset frequency is emitted to the designated area of the dot matrix layer 120, an area (i.e., a target area) located in the designated area among the other areas of the dot matrix layer 120 will reflect the light wave of the preset frequency.
It should be noted that when the display screen 110 is an active light-emitting screen (e.g., a liquid crystal screen), any one of the two embodiments described above may be used to set the code points. When the display screen 110 is a passive light-emitting screen (e.g., a projection screen), the code dots can be arranged in the second manner described above, i.e., the code dots are made of a material that absorbs the light wave with the predetermined frequency, and the other areas of the dot matrix layer 120 except the code dots are made of a material that reflects the light wave with the predetermined frequency.
Referring to fig. 3, fig. 3 is a flowchart illustrating a screen positioning method according to an embodiment of the present disclosure, where the method may be applied to the display device 100 shown in fig. 1, and in the display device 100, the code points of the dot matrix layer 120 may reflect the light wave with the preset frequency, other regions of the dot matrix layer 120 except the code points may absorb the light wave with the preset frequency, the light wave emitted by the display screen 110 does not include the light wave with the preset frequency, and the other regions may allow visible light to pass through. In this case, the method may include the various steps shown in fig. 3.
Step S31, emitting the light wave with the preset frequency to a designated area on the surface of the display screen 110, so that a target code point located in the designated area among the plurality of code points reflects the light wave with the preset frequency.
In the present embodiment, step S31 can be implemented by the light emitting device 140 described above.
And step S32, receiving the light wave with the preset frequency reflected by the target code point, and generating a target dot matrix according to the received light wave.
In the present embodiment, step S32 may be implemented by the camera imaging unit 150 described above.
Step S33, determining the position of the designated area on the surface of the display screen 110 according to the target bitmap.
In the present embodiment, step S33 may be implemented by the processing unit 130 described above.
Alternatively, the plurality of code points are divided into more than one code region, and correspondingly, as shown in fig. 4, step S33 may include the following steps.
And step S41, identifying the target dot matrix chart, and determining a target code area where the center of the designated area is located.
Step S42, acquiring an absolute position of the target code area on the surface of the display screen 110 and a relative position of the center of the designated area in the target code area.
Step S43, determining an absolute position of the center of the designated area on the surface of the display screen 110 according to the absolute position and the relative position.
Referring to fig. 5, fig. 5 is a flowchart illustrating a further screen positioning method provided in this embodiment, where the method may be applied to the display device 100 shown in fig. 1, and in the display device 100, the code points included in the dot matrix layer 120 can absorb the light wave with the preset frequency, other areas on the dot matrix layer 120 except for the code points can reflect the light wave with the preset frequency, the light wave emitted by the display screen 110 does not include the light wave with the preset frequency, and the other areas can reflect visible light. In this case, the method may include the various steps shown in fig. 5.
Step S51, emitting the light wave with the preset frequency to a designated area on the surface of the display screen 110, so that a target area located in the designated area in the other area reflects the light wave with the preset frequency.
In the present embodiment, step S51 can be implemented by the light emitting device 140 described above.
And step S52, receiving the light wave with the preset frequency reflected by the target area, and generating a target dot matrix according to the received light wave.
In the present embodiment, step S52 may be implemented by the camera imaging unit 150 described above.
Step S53, determining the position of the designated area on the surface of the display screen 110 according to the target bitmap.
In this embodiment, the specific implementation process of step S53 is similar to that of step S33, and is not described herein again.
To sum up, the display device and the screen positioning method provided by the embodiment of the application include: a display screen; the dot matrix layer is arranged on the surface of the display screen and comprises a plurality of code points, and the appointed area of the dot matrix layer is used for reflecting the light wave with the preset frequency emitted to the appointed area, wherein the light wave emitted by the display screen does not comprise the light wave with the preset frequency; and the processing unit is used for acquiring a target dot matrix image generated according to the light wave with the preset frequency reflected by the designated area and determining the position of the designated area on the surface of the display screen according to the target dot matrix image. Through the design, on one hand, the production cost and the production complexity are reduced, and on the other hand, the positioning accuracy of the display screen is improved.
In the embodiments provided in the present application, it should be understood that the disclosed apparatus and method may be implemented in other ways. The above-described apparatus embodiments are merely illustrative, and for example, the flowchart and block diagrams in the figures illustrate the architecture, functionality, and operation of possible implementations of apparatus, methods and computer program products according to various embodiments of the present application. In this regard, each block in the flowchart or block diagrams may represent a module, segment, or portion of code, which comprises one or more executable instructions for implementing the specified logical function(s). It should also be noted that, in some alternative implementations, the functions noted in the block may occur out of the order noted in the figures. For example, two blocks shown in succession may, in fact, be executed substantially concurrently, or the blocks may sometimes be executed in the reverse order, depending upon the functionality involved. It will also be noted that each block of the block diagrams and/or flowchart illustration, and combinations of blocks in the block diagrams and/or flowchart illustration, can be implemented by special purpose hardware-based systems which perform the specified functions or acts, or combinations of special purpose hardware and computer instructions.
In addition, functional modules in the embodiments of the present application may be integrated together to form an independent part, or each module may exist separately, or two or more modules may be integrated to form an independent part.
The functions, if implemented in the form of software functional modules and sold or used as a stand-alone product, may be stored in a computer readable storage medium. Based on such understanding, the technical solution of the present application or portions thereof that substantially contribute to the prior art may be embodied in the form of a software product stored in a storage medium and including instructions for causing a computer device (which may be a personal computer, a server, or a network device) to execute all or part of the steps of the method according to the embodiments of the present application. And the aforementioned storage medium includes: a U-disk, a removable hard disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a magnetic disk or an optical disk, and other various media capable of storing program codes.
It is noted that, herein, relational terms such as first and second, and the like may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.
The above description is only for the specific embodiments of the present application, but the scope of the present application is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present application, and shall be covered by the scope of the present application. Therefore, the protection scope of the present application shall be subject to the protection scope of the claims.
Claims (8)
1. A display device, comprising:
a display screen;
the dot matrix layer is arranged on the surface of the display screen and comprises a plurality of code points, the appointed area of the dot matrix layer is used for reflecting the light wave with the preset frequency emitted to the appointed area, and the light wave emitted by the display screen does not comprise the light wave with the preset frequency; the processing unit is used for acquiring a target dot matrix image generated according to the light wave with the preset frequency reflected by the designated area and determining the position of the designated area on the surface of the display screen according to the target dot matrix image;
wherein the plurality of code points are divided into more than one code region, and the processing unit is specifically configured to:
identifying the target dot matrix diagram, and determining a target code area where the center of the designated area is located; acquiring the absolute position of the target code area on the surface of the display screen and the relative position of the center of the designated area in the target code area; and determining the absolute position of the center of the designated area on the surface of the display screen according to the absolute position and the relative position.
2. The display device according to claim 1, characterized in that the display device further comprises:
the light-emitting device is used for emitting light waves with the preset frequency to the designated area; and
and the camera imaging unit is used for receiving the light wave with the preset frequency reflected by the appointed area and generating the target dot matrix image according to the received light wave with the preset frequency.
3. The display apparatus according to claim 2, wherein the light emitting device and the camera imaging unit are integrally provided.
4. The display device according to claim 2 or 3, wherein the code dots are capable of reflecting the light waves of the predetermined frequency, and the other regions of the dot matrix layer except the plurality of code dots are capable of absorbing the light waves of the predetermined frequency;
and the target code point positioned in the appointed area in the plurality of code points included by the dot matrix layer is used for reflecting the light wave with the preset frequency transmitted to the appointed area.
5. The display device of claim 4, wherein the dot matrix layer is a transparent film printed with the plurality of code dots, and the code dots are printed with a material containing gold or silver.
6. The display device according to any one of claims 1-3, wherein the code dots are capable of absorbing light waves of the predetermined frequency, and areas of the lattice layer other than the plurality of code dots are capable of reflecting light waves of the predetermined frequency;
and the target area positioned in the appointed area in the other areas included in the lattice layer is used for reflecting the light wave of the preset frequency emitted to the appointed area.
7. A screen positioning method is characterized in that the screen positioning method is applied to a display device, the display device comprises a display screen and a dot matrix layer arranged on the surface of the display screen, the dot matrix layer comprises a plurality of code points, the code points can reflect light waves with preset frequency, and other areas except the code points on the dot matrix layer can absorb the light waves with the preset frequency, wherein the light waves emitted by the display screen do not comprise the light waves with the preset frequency; the method comprises the following steps:
emitting the light wave with the preset frequency to a designated area on the surface of the display screen, so that a target code point positioned in the designated area in the plurality of code points reflects the light wave with the preset frequency;
receiving the light wave with the preset frequency reflected by the target code point, and generating a target dot matrix diagram according to the received light wave;
determining the position of the designated area on the surface of the display screen according to the target bitmap;
wherein the plurality of code points are divided into more than one code area, and the step of determining the position of the designated area on the surface of the display screen according to the target bitmap comprises:
identifying the target dot matrix diagram, and determining a target code area where the center of the designated area is located; acquiring the absolute position of the target code area on the surface of the display screen and the relative position of the center of the designated area in the target code area; and determining the absolute position of the center of the designated area on the surface of the display screen according to the absolute position and the relative position.
8. A screen positioning method is characterized in that the screen positioning method is applied to display equipment, the display equipment comprises a display screen and a dot matrix layer arranged on the surface of the display screen, the dot matrix layer comprises a plurality of code points, the code points can absorb light waves with preset frequency, and other areas except the code points on the dot matrix layer can reflect the light waves with the preset frequency, wherein the light waves emitted by the display screen do not comprise the light waves with the preset frequency; the method comprises the following steps:
emitting the light waves with the preset frequency to a designated area on the surface of the display screen, so that the light waves with the preset frequency are reflected by a target area located in the designated area in the other areas;
receiving the light wave with the preset frequency reflected by the target area, and generating a target dot-matrix diagram according to the received light wave;
determining the position of the designated area on the surface of the display screen according to the target bitmap;
wherein the plurality of code points are divided into more than one code area, and the step of determining the position of the designated area on the surface of the display screen according to the target bitmap comprises:
identifying the target dot matrix diagram, and determining a target code area where the center of the designated area is located; acquiring the absolute position of the target code area on the surface of the display screen and the relative position of the center of the designated area in the target code area; and determining the absolute position of the center of the designated area on the surface of the display screen according to the absolute position and the relative position.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392658.6A CN109597530B (en) | 2018-11-21 | 2018-11-21 | Display device and screen positioning method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811392658.6A CN109597530B (en) | 2018-11-21 | 2018-11-21 | Display device and screen positioning method |
Publications (2)
| Publication Number | Publication Date |
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| CN109597530A CN109597530A (en) | 2019-04-09 |
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| CN110389684B (en) * | 2019-06-28 | 2021-07-16 | 联想(北京)有限公司 | Touch identification method, touch equipment and display equipment |
| CN111699464B (en) * | 2020-04-01 | 2023-08-11 | 深圳市鹰硕技术有限公司 | Method, device, electronic equipment and system for displaying dot patterns |
| CN112631445B (en) * | 2020-12-29 | 2024-03-29 | 安徽鸿程光电有限公司 | Touch display system, touch display method, touch pen and medium |
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