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WO2024027158A1 - Circuit de reconnaissance photosensible, procédé de positionnement photosensible et dispositif d'affichage - Google Patents

Circuit de reconnaissance photosensible, procédé de positionnement photosensible et dispositif d'affichage Download PDF

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Publication number
WO2024027158A1
WO2024027158A1 PCT/CN2023/081149 CN2023081149W WO2024027158A1 WO 2024027158 A1 WO2024027158 A1 WO 2024027158A1 CN 2023081149 W CN2023081149 W CN 2023081149W WO 2024027158 A1 WO2024027158 A1 WO 2024027158A1
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WO
WIPO (PCT)
Prior art keywords
photosensitive
interactive control
control position
signal intensity
target
Prior art date
Application number
PCT/CN2023/081149
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English (en)
Chinese (zh)
Inventor
夏大学
张耀文
陈乃军
Original Assignee
摩星半导体(广东)有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Publication date
Application filed by 摩星半导体(广东)有限公司 filed Critical 摩星半导体(广东)有限公司
Publication of WO2024027158A1 publication Critical patent/WO2024027158A1/fr

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Classifications

    • 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
    • G06F3/0416—Control or interface arrangements specially adapted for digitisers
    • G06F3/04166—Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving
    • 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
    • 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

Definitions

  • the present application relates to the field of photosensitive positioning technology, and specifically to a photosensitive identification circuit, a photosensitive positioning method, and a display device.
  • Photosensitive positioning technology is particularly important when users interact with computers through display devices (such as smart TVs, laptops, etc.). Especially when users use LCD screens for human-computer interaction games, accurate and fast positioning is required.
  • the FPGA chip uniformly obtains that when there is a light spot on the display screen of the display device, each photosensitive identification circuit collects the photosensitive signal, summarizes and analyzes the photosensitive signal, calculates the coordinate information of the light spot, and transmits the calculated coordinate information to the main control chip .
  • the system chip performs corresponding interactive actions based on the coordinate information.
  • the FPGA chip uniformly acquiring the photosensitive signal and calculating the coordinate information, it obtains the photosensitive signal through the I2C interface, etc., which requires transmission time, and the FPGA chip uniformly calculates the coordinate information of the light spot based on the photosensitive signal, which also requires a lot of calculation time. This causes delays when the system chip performs interactive actions.
  • Embodiments of the present application provide a photosensitive identification circuit, a photosensitive positioning method, and a display device, which can reduce the delay when users interact with humans through a display screen.
  • an embodiment of the present application provides a photosensitive recognition circuit, including a processing unit, where the processing unit is used to:
  • the coordinates of the target photosensitive unit on the display screen are determined, and the first interactive control position is determined based on the coordinates.
  • embodiments of the present application provide a display device, including the photosensitive recognition circuit according to any one of claims 1 to 7; the display device further includes a main processing chip, and the main processing chip and the photosensitive recognition circuit Identify circuit connections;
  • the main processing chip is configured to: receive the interactive control position sent by the photosensitive identification circuit, and perform interactive control operations based on the interactive control position.
  • embodiments of the present application provide a photosensitive positioning method, which is applied to a photosensitive identification circuit.
  • the method includes:
  • the coordinates of the target photosensitive unit on the display screen are determined, and the first interactive control position is determined based on the coordinates.
  • the technical solution provided by the embodiment of the present application can determine the target photosensitive unit based on the multiple photosensitive signal intensities after the photosensitive identification circuit obtains the multiple photosensitive signal intensities of its corresponding photosensitive units, and then determines the coordinates of the target photosensitive unit on the display screen. Determining the first interactive control position realizes that the interactive control position of the control operation on the display screen can be determined through the photosensitive identification circuit without the need to determine it through an external chip, thus avoiding the photosensitive identification circuit from sending the photosensitive signal to the external chip.
  • the process of the external chip determining the interactive control position of the control operation saves the time required for the external chip to uniformly calculate the interactive control position of the control operation based on the photosensitive signal, thereby improving the speed of determining the first interactive control position and thereby reducing the system chip cost.
  • Figure 1 is a flow chart of a photosensitive positioning method provided by an embodiment of the present application.
  • Figure 2 is a schematic structural diagram of a display device provided by an embodiment of the present application.
  • Figure 3 is a schematic diagram of the preset distance provided by the embodiment of the present application.
  • Figure 4 is a module schematic diagram of a photosensitive identification circuit provided by an embodiment of the present application.
  • Figure 5 is a schematic diagram of the light spot provided by the embodiment of the present application.
  • Figure 6 is a schematic diagram of the parallel connection of photosensitive identification circuits provided by the embodiment of the present application.
  • FIG. 7 is a schematic diagram of the arrangement of semiconductor light-emitting diodes and photosensitive units provided by embodiments of the present application.
  • Embodiments of the present application provide a photosensitive identification circuit, a photosensitive positioning method, and a display device.
  • the display device includes but is not limited to computers, notebooks, tablets, smart phones, and televisions.
  • the display screen of the display device may be a liquid crystal display screen.
  • This embodiment describes the light-sensitive identification circuit from the perspective of the light-sensitive identification circuit.
  • the light-sensitive identification circuit can be integrated in a display device.
  • An embodiment of the present application provides a photosensitive positioning method, as shown in Figure 1.
  • the specific process of the photosensitive positioning method can be as follows:
  • the display device 10 in FIG. 2 includes a photosensitive unit 11 arranged in an array, a photosensitive recognition circuit 12 , a main processing chip 13 , a photosensitive channel 14 and a display screen 15 .
  • the main processing chip 13 activates the photosensitive recognition circuit 12 , acquires the current detected by the photosensitive channel 14 when the photosensitive recognition circuit 12 scans the photosensitive unit 11 , and determines the current intensity as the photosensitive signal intensity of the photosensitive unit 11 .
  • one or more photosensitive recognition circuits 12 may be provided, wherein the number of photosensitive recognition circuits 12 may be determined according to the number of photosensitive units 11 .
  • the 200 photosensitive units 11 are evenly distributed on the display screen 15 in a matrix arrangement (for example, 20*10), and the 200 photosensitive units 11 are divided into 4 Areas (area A, area B, area C, area D), each area is formed by a 5*10 matrix arrangement.
  • Four photosensitive identification circuits 12 can be respectively provided, and the area that each photosensitive identification circuit 12 needs to identify is determined and each area corresponds to multiple photosensitive units 11 .
  • the photoreceptor recognition circuit A recognizes the photosensitive unit 11 in area A
  • the photoreceptor recognition circuit B recognizes the photosensitive unit 11 in area B
  • the photoreceptor recognition circuit C recognizes the photosensitive unit 11 in area C
  • the photoreceptor recognition circuit D recognizes the photosensitive unit 11 in area D.
  • the photoreceptor recognition circuit 12 acquires multiple photoreceptor signal intensities of the corresponding photoreceptor units 11. If there are 30 photosensitive units 11 in the display device 10 , one or two photosensitive identification circuits 12 may be provided in the display device 10 to obtain the signal strength of the photosensitive units 11 . It can be understood that the matrix arrangement is one of the arrangements of the photosensitive units 11, and this application does not limit the arrangement of the photosensitive units 11.
  • the display screen 15 of the display device 10 of the present application has the function of displaying text, images, and graphics. It can also detect external light sources and perform corresponding interactive control operations according to the position of the external light source in the display screen 15 .
  • the display screen 15 takes an LED display screen as an example. It can display images through the display mode of the semiconductor light-emitting diodes 16 in the LED display screen, and when the laser pointer shines on the LED display screen, the image is displayed through the photosensitive unit in the LED display screen. 11. Determine the interactive control position and perform interactive control operations.
  • the photosensitive unit 11 and the semiconductor light emitting diode 16 are arranged as shown in FIG. 7 .
  • the target photosensitive unit is the photosensitive unit where the control center of the control operation in the display screen 15 is located.
  • the control operations in this application include lighting control operations such as using infrared rays, and touch control operations such as directly clicking on the display screen 15 with your hands.
  • the target photosensitive unit can be determined from the plurality of photosensitive units 11 according to various methods.
  • the photosensitive identification circuit 12 determines the photosensitive unit 11 whose signal intensity is greater than a preset threshold as a candidate photosensitive unit, and determines the extreme value of the signal intensity in the candidate photosensitive unit. If When there are multiple signal intensity extreme values, determine whether the photosensitive unit 11 corresponding to the signal intensity extreme value is the photosensitive unit 11 of an adjacent row or adjacent column. If not, determine that there are currently two target photosensitive units. If so, determine The photosensitive unit 11 corresponding to the maximum value of the photosensitive signal intensity or the minimum value of the signal intensity is the target photosensitive unit.
  • the photosensitive unit 11 generates a corresponding photosensitive signal according to the received light intensity.
  • a light source for example, infrared rays
  • the photosensitive unit 11 at the position with the strongest light in the light spot will generate the largest signal intensity value, as shown in Therefore, the position of the lighting control operation in the display screen 15 can be determined according to the maximum signal intensity of the photosensitive unit 11 .
  • the position of the touch control operation in the display screen 15 can be determined by the minimum value of the photosensitive signal. That is, in this application, the position of the control operation in the display screen 15 can be determined according to the signal strength extreme values (the signal strength maximum value and the signal strength minimum value).
  • Determining whether the photosensitive units 11 in adjacent rows or columns among the candidate photosensitive units is the photosensitive unit 11 corresponding to the extreme value of the photosensitive signal intensity is only a method given in this embodiment, which can be based on the control area and photosensitive unit
  • the arrangement distance between 11 determines the range for finding the extreme value of photosensitive signal intensity. For example, when the control area formed by the control operation in the display screen 15 is large or the arrangement distance of the photosensitive units 11 is small, and the photosensitive signals obtained by more than three consecutive photosensitive units 11 are the photosensitive signals of the same control operation, then the photosensitive signals obtained by the three or more photosensitive units 11 are the same control operation.
  • the photosensitive unit 11 corresponding to the extreme value of the photosensitive signal intensity is determined to be the target photosensitive unit. It can be understood that in the implementation of this application, the preset threshold can be obtained by workers through experiments, and this embodiment does not limit it.
  • the photosensitive unit 11 corresponding to the extreme value of the photosensitive signal intensity is determined to be the target photosensitive unit.
  • the coordinates of the target photosensitive unit on the display screen 15 can be determined by the determinant of the target photosensitive unit in its corresponding matrix.
  • the four photosensitive recognition circuits 12 in FIG. 2 are respectively photosensitive recognition circuit A, photosensitive recognition circuit B, photosensitive recognition circuit C and photosensitive recognition circuit D from left to right.
  • the photosensitive identification circuit A scans the photosensitive units 11 in the 1st to 5th columns to obtain the photosensitive signal intensity of the photosensitive unit 11;
  • the photosensitive identification circuit B scans the photosensitive units 11 in the 6th to 10th columns to obtain the photosensitive signal intensity of the photosensitive unit 11;
  • the photosensitive identification circuit C scans the photosensitive units 11 in the 11th to 15th columns to obtain the photosensitive signal intensity of the photosensitive units 11;
  • the photosensitive identification circuit D scans the photosensitive units 11 in the 16th to 20th columns to obtain the photosensitive signal intensity of the photosensitive units 11.
  • the photosensitive recognition circuit A determines that the target photosensitive unit is the third photosensitive unit 11 in the second row, it determines the coordinates of the target photosensitive unit as A23, and further determines the first interactive control position based on the coordinates A23.
  • the center point of the display screen 15 can be used as the origin of the coordinate system to establish a coordinate system, determine the coordinates of each photosensitive unit 11 located in the coordinate system, and compare the coordinates with the corresponding photosensitive unit 11
  • the row and column numbers are correspondingly stored in the photosensitive recognition circuit 12 . Therefore, after the photosensitive identification circuit 12 determines the row and column number of the target photosensitive unit, its coordinates on the display screen 15 can be obtained.
  • the coordinates of the target photosensitive unit are directly determined as the first interactive control position.
  • the target photosensitive unit can be determined based on the multiple photosensitive signal intensities, and then the target photosensitive unit can be used on the display screen.
  • the coordinates on 15 determine the first interactive control position, and the interactive control position of the control operation on the display screen 15 can be determined through the photosensitive identification circuit 12 without the need to determine it through an external chip, thereby reducing the need for the photosensitive identification circuit 12 to
  • the signal is sent to the external chip, and the process of determining the interactive control position of the control operation through the external chip saves the time required for the external chip to uniformly calculate the interactive control position of the control operation based on the photosensitive signal, thereby improving the accuracy of determining the first interactive control position. efficiency, thereby reducing the time delay for the system chip to perform interactive control operations according to the first interactive control position.
  • a target photosensitive unit is determined from multiple photosensitive units 11 according to multiple photosensitive signal intensities, including:
  • the signal intensity extreme value among the plurality of photosensitive signal intensities is determined, and the photosensitive unit 11 corresponding to the signal intensity extreme value is determined as the target photosensitive unit, wherein the distance between any two target photosensitive units is greater than the preset distance. .
  • the signal strength extreme value includes the signal strength maximum value and the signal strength minimum value.
  • the control operation is a lighting control operation
  • the photosensitive unit 11 corresponding to the maximum signal strength value among the plurality of photosensitive units 11 is determined to be the target photosensitive unit; when the control operation is a touch type During the control operation, the photosensitive unit 11 whose photosensitive signal intensity is the minimum value of the signal intensity is determined as the target photosensitive unit among the plurality of photosensitive units 11 .
  • the preset distance is the minimum diameter of the light spot formed on the display screen 15 by the user's control operation.
  • the size of the diameter can be determined according to the type of control operation. For example, when the received control operation is a lighting type, the preset distance is determined to be 0.5 cm; when the received control operation is a touch control operation, then the preset distance is determined to be 0.5 cm. The default distance is 1 cm.
  • determining the signal intensity extreme value among the multiple photosensitive signal intensities, and determining the photosensitive unit 11 corresponding to the signal intensity extreme value as the target photosensitive unit includes:
  • the first photosensitive unit corresponding to the signal intensity extreme value is used as a candidate photosensitive unit, and the recorded target photosensitive unit is obtained;
  • the first photosensitive unit is recorded as a new target photosensitive unit.
  • the photosensitive identification circuit 12 determines the traversal interval according to a preset distance.
  • the photosensitive recognition circuit 12 traverses multiple photosensitive signal intensities of the corresponding areas row by row according to the traversal interval.
  • the signal intensity extreme value is obtained in each target traversal interval, and the signal intensity is
  • the first photosensitive unit corresponding to the extreme value is used as a candidate photosensitive unit, the distance between it and the recorded target photosensitive unit is obtained, and whether the distance is greater than the preset distance is determined.
  • the distance between the candidate photosensitive unit and the target photosensitive unit is greater than the preset distance, it is determined that the photosensitive signals of the candidate unit and the photosensitive unit are generated under different control operations, and the first photosensitive unit is recorded as the new target photosensitive unit; if the candidate photosensitive unit If the distance to the target photosensitive unit is less than or equal to the preset distance, it is determined that the candidate photosensitive unit and the target photosensitive unit are light spots generated under the same control operation, and they need to be merged, then the photosensitive signals of the target photosensitive unit and the candidate photosensitive unit are determined. Intensity extreme value, update the target photosensitive unit according to the photosensitive signal intensity extreme value.
  • the photosensitive unit with the maximum value of the photosensitive signal intensity among the target photosensitive unit and the candidate photosensitive unit is determined to be the target photosensitive unit. For example, when it is determined that the photosensitive signal intensity of the target photosensitive unit is smaller than the signal intensity of the candidate photosensitive unit, the target photosensitive unit is updated to the candidate photosensitive unit.
  • the control operation is a touch control operation
  • the photosensitive unit with the minimum photosensitive signal intensity among the target photosensitive unit and the candidate photosensitive unit is determined to be the target photosensitive unit. For example, when it is determined that the photosensitive signal intensity of the target photosensitive unit is greater than the signal intensity of the candidate photosensitive unit, the candidate photosensitive unit is updated as the target photosensitive unit.
  • the photosensitive identification circuit 12 determines the intensity of the scanning photosensitive signal in the traversal interval with a preset distance, and uses the first photosensitive unit corresponding to the extreme value of the signal intensity as a candidate photosensitive unit, between the recorded target photosensitive unit and the candidate photosensitive unit.
  • the target photosensitive unit is updated according to the signal intensity extreme value between the target photosensitive unit and the determined candidate photosensitive unit; when the distance between the recorded target photosensitive unit and the candidate photosensitive unit is greater than the preset distance
  • the first photosensitive signal is recorded as a new target photosensitive unit.
  • the target photosensitive unit is obtained by determining the intensity of the scanning photosensitive signal in the traversal interval at a preset distance, thereby improving the accuracy of the determined target photosensitive unit.
  • the method further includes:
  • a third interactive control position is determined based on the photosensitive signal intensity at the first interactive control position and the photosensitive signal intensity at the second interactive control position, and the The third interactive control position is sent to the next-level chip connected to the photosensitive identification circuit 12;
  • the first interactive control position and the second interactive control position are sent to the next-level chip.
  • the photosensitive recognition circuit 12 of the display device 10 includes a scan control module 401 that controls scanning of its corresponding photosensitive unit 11 .
  • the voltage detection module 402 detects the photosensitive signal generated by the photosensitive unit 11 and controls the photosensitive signal generated by the photosensitive unit 11 .
  • the signal is sent to the signal conversion module 403.
  • the main processing chip 13 determines that there is a control operation on the display screen 15, it starts the photosensitive identification circuit 12 to collect the photosensitive signal intensity of the photosensitive unit 11.
  • the power module 407 sends the reference voltage to the signal conversion module 403 .
  • the signal conversion module 403 converts the electrical signal into a digital signal according to the reference voltage, and sends the intensity of the photosensitive signal of the photosensitive unit 11 converted into a digital signal to the coordinate calculation module 404 .
  • the coordinate calculation module 404 obtains the second interactive control position determined by the upper-level photosensitive recognition circuit 12 through the previous-level coordinate input module 405, and determines the second interactive control position according to the photosensitive signal intensity and the second interactive control position sent by the upper-level photosensitive recognition circuit 12.
  • the first interactive control position is output through the position output module 406.
  • the coordinate calculation module 404, the front-level coordinate input module 405, and the interactive control position output module are added to the photosensitive recognition circuit 12 of the present application, so that the interactive control of the control operation on the display device 10 can be obtained in the photosensitive recognition circuit 12 Position, the interactive control position can be determined without using an external chip, which improves the speed of determining the interactive control position.
  • the display screen 15 there may be multiple light spots in the display screen 15 , for example, light spot A located in the same area, light spot B across areas, or there may be multiple light spots in the same area.
  • the light spots such as light spot C and light spot D
  • the light spots B generated by the display screen 15 are located in different areas, it is necessary to jointly determine the interactive control position of the control operation through different photosensitive identification circuits 12 .
  • the intermediate position between the first interactive control position and the second interactive control position may also be determined as the third interactive control position.
  • the second interactive control position of the upper-level photosensitive recognition circuit 12 and the photosensitive signal intensity of the second interactive control position are obtained, and the first interactive control position and The distance between the second interactive control positions.
  • the distance is less than or equal to the preset distance, it is determined that the first interactive control position and the second interactive control position are interactive control positions of the same control operation, and they need to be updated.
  • the signal strength extreme value is determined according to the type of control operation.
  • the control operation is a lighting control operation
  • it is determined that the distance between the first interactive control position and the second interactive control position is less than or equal to the preset distance, and it is further determined that the signal intensity of the first interactive control position is greater than the candidate photosensitivity
  • the third interactive control position is determined to be the coordinate of the photosensitive unit 11 at the first interactive control position.
  • the photosensitive identification circuit 12 determines the maximum photosensitive signal intensity among the photosensitive signal intensity at the first interactive control position and the photosensitive signal intensity at the second interactive control position, and determines the maximum photosensitive signal intensity of the photosensitive unit 11 corresponding to the maximum signal intensity.
  • the coordinates are determined as the third interactive control position. Accurate determination of the interactive control position is achieved.
  • the first interactive control position and the second interactive control position are sent to Next level chip.
  • next-level chip may be the main processing chip 13 or the photosensitive recognition circuit 12 connected in parallel with the current photosensitive recognition circuit.
  • the photosensitive recognition circuit 12 determines the first interactive control position, it simultaneously obtains the second interactive control position obtained by the upper-level photosensitive recognition circuit 12, and determines the transmission based on the first interactive control position and the second interactive control position. to the third interactive control position of the next-level photosensitive identification circuit 12.
  • the photosensitive recognition circuit 12 can obtain the second interactive control position of the upper level, and then determine the third interactive control position that currently needs to be output to the next level chip, achieving accurate and rapid determination of the third interactive control position.
  • the embodiment of the present application also provides a photosensitive identification circuit 12, which includes a processing unit, and the processing unit is used for:
  • the coordinates of the target photosensitive unit on the display screen 15 are determined, and the first interactive control position is determined based on the coordinates.
  • the processing unit is also used for:
  • the signal intensity extreme value among the plurality of photosensitive signal intensities is determined, and the photosensitive unit 11 corresponding to the signal intensity extreme value is determined as the target photosensitive unit, wherein the distance between any two target photosensitive units is greater than the preset distance. .
  • the processing unit is also used for:
  • the first photosensitive unit 11 corresponding to the signal intensity extreme value is used as a candidate photosensitive unit, and the recorded target photosensitive unit is obtained;
  • the first photosensitive unit 11 is recorded as a new target photosensitive unit.
  • the processing unit is used for:
  • control operation is a lighting control operation
  • the control operation is a touch control operation
  • the signal intensity minimum value among the plurality of photosensitive signal intensities is determined.
  • the processing unit is used for:
  • a third interactive control position is determined based on the photosensitive signal intensity at the first interactive control position and the photosensitive signal intensity at the second interactive control position, and the The third interactive control position is sent to the next-level chip connected to the photosensitive identification circuit 12;
  • the first interactive control position and the second interactive control position are sent to the next-level chip.
  • the processing unit is used for:
  • the coordinates of the photosensitive unit 11 corresponding to the signal intensity extreme value are determined as the third interactive control position.
  • the next-level chip in the processing unit is the next-level photosensitive identification circuit 12 or the main processing chip 13 .
  • the embodiment of the present application also provides a display device 10, including the photosensitive identification circuit 12 as described above; the display device 10 also includes a main processing chip 13, and the main processing chip 13 is connected with the photosensitive identification circuit 12. Circuit 12 connection;
  • the main processing chip 13 is configured to receive the interactive control position sent by the photosensitive recognition circuit 12 and perform interactive control operations based on the interactive control position.
  • the main processing chip 13 executes the corresponding interactive control operation.
  • the main processing chip 13 can be connected to multiple photosensitive identification circuits 12 through an SPI (Serial Peripheral Interface) interface.
  • SPI Serial Peripheral Interface
  • the main processing chip 13 After receiving multiple interactive control positions, the main processing chip 13 executes corresponding interactive control operations.
  • photosensitive identification circuits 12 there are multiple photosensitive identification circuits 12, multiple photosensitive identification circuits 12 are connected in series, and the last stage photosensitive identification circuit 12 is connected to the main processing chip 13;
  • the main processing chip 13 is configured to receive the interactive control position sent by the last-stage photosensitive identification circuit 12 and perform interactive control operations based on the interactive control position.
  • multiple photosensitive recognition circuits 12 are connected in series, thereby forming a multi-level photosensitive recognition circuit 12 .
  • the upper level and the lower level are relative to the current connection positions of the photosensitive identification circuit 12 in the series.
  • the photosensitive recognition circuit B is a photosensitive recognition circuit at the next level compared to the photosensitive recognition circuit A, but for the photosensitive recognition circuit C, it is a photosensitive recognition circuit at the upper level.
  • the photosensitive identification circuit A may not be provided with a front-end input coordinate module.
  • the main processing chip 13 does not need to calculate the photosensitive signal of the photosensitive unit 11 and directly determines the interactive control position through the photosensitive recognition circuit 12, which improves the speed at which the main processing chip 13 performs corresponding interactive control operations based on the interactive control position.
  • photosensitive identification circuits 12 there are multiple photosensitive identification circuits 12, and multiple photosensitive identification circuits 12 are connected in parallel to the main processing chip 13;
  • the main processing chip 13 is used for:
  • the interactive control position with the extreme value of the photosensitive signal intensity among the two interactive control positions corresponding to the distance is determined as the target interactive control position;
  • An interactive control operation is performed based on the target interactive control position.
  • multiple photosensitive identification circuits 12 are connected in parallel.
  • the photosensitive recognition circuit 12 is divided into the photosensitive recognition circuit A, the photosensitive recognition circuit B, the photosensitive recognition circuit C and the photosensitive recognition circuit D from left to right.
  • the main processing chip 13 receives the first interactive control position of the photosensitive recognition circuit A, the second interactive control position of the photosensitive recognition circuit B, the third interactive control position of the photosensitive recognition circuit C, and the fourth interactive control position of the photosensitive recognition circuit D, Determine the distance between each interaction control location.
  • the first interactive control position and the second interactive control position are interactive control positions of the same control operation, and they need to be compared. Make an update.
  • the control operation is a lighting control operation and it is determined that the photosensitive signal intensity of the first interactive control position is greater than the photosensitive signal intensity of the candidate photosensitive unit, the target interactive control position is determined to be the coordinates of the photosensitive unit 11 of the first interactive control position.
  • the third interactive control position of the photosensitive recognition circuit C and the fourth interactive control position of the photosensitive recognition circuit D are determined to be the interactive control positions of the same control operation. It is further determined to perform two interactive control actions.
  • the main processing chip 13 obtains the control positions determined by multiple photosensitive recognition circuits 12 in a parallel manner, and can initially determine the interactive control position in each photosensitive recognition circuit 12, and then in the main processing chip 13 based on multiple photosensitive recognition circuits 12 The distance between the interactive control locations is compared with the preset distance, the target interactive control position is determined, and the interactive operation is performed based on the target interactive control position.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Theoretical Computer Science (AREA)
  • Human Computer Interaction (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Position Input By Displaying (AREA)

Abstract

Des modes de réalisation de la présente demande divulguent un circuit de reconnaissance photosensible, un procédé de positionnement photosensible et un dispositif d'affichage. Le procédé comprend : l'acquisition d'une pluralité d'intensités de signaux photosensibles détectées par une pluralité d'unités photosensibles correspondant à un circuit de reconnaissance photosensible ; la détermination d'une unité photosensible cible parmi la pluralité d'unités photosensibles selon la pluralité d'intensités de signaux photosensibles ; la détermination de coordonnées de l'unité photosensible cible sur un écran d'affichage et la détermination d'une première position de commande d'interaction selon les coordonnées. Par conséquent, le retard lorsqu'un utilisateur réalise une interaction homme-ordinateur au moyen d'un écran d'affichage peut être réduit.
PCT/CN2023/081149 2022-08-02 2023-03-13 Circuit de reconnaissance photosensible, procédé de positionnement photosensible et dispositif d'affichage WO2024027158A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202210920366.5A CN117539360A (zh) 2022-08-02 2022-08-02 感光识别电路、感光定位方法、显示装置
CN202210920366.5 2022-08-02

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WO2024027158A1 true WO2024027158A1 (fr) 2024-02-08

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN101751188A (zh) * 2010-01-27 2010-06-23 汕头超声显示器（二厂）有限公司 内置感应的显示装置
JP2010146506A (ja) * 2008-12-22 2010-07-01 Sharp Corp 入力装置、入力装置の制御方法、入力装置の制御プログラム、コンピュータ読取可能な記録媒体、および情報端末装置
CN102279656A (zh) * 2010-06-10 2011-12-14 鼎亿数码科技(上海)有限公司 激光平面定位系统及其实现方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010146506A (ja) * 2008-12-22 2010-07-01 Sharp Corp 入力装置、入力装置の制御方法、入力装置の制御プログラム、コンピュータ読取可能な記録媒体、および情報端末装置
CN101751188A (zh) * 2010-01-27 2010-06-23 汕头超声显示器（二厂）有限公司 内置感应的显示装置
CN102279656A (zh) * 2010-06-10 2011-12-14 鼎亿数码科技(上海)有限公司 激光平面定位系统及其实现方法

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