WO2024040543A1 - 宽窄视角可切换的显示装置及控制方法 - Google Patents

宽窄视角可切换的显示装置及控制方法 Download PDF

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Publication number
WO2024040543A1
WO2024040543A1 PCT/CN2022/114965 CN2022114965W WO2024040543A1 WO 2024040543 A1 WO2024040543 A1 WO 2024040543A1 CN 2022114965 W CN2022114965 W CN 2022114965W WO 2024040543 A1 WO2024040543 A1 WO 2024040543A1
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WO
WIPO (PCT)
Prior art keywords
wide
narrow viewing
viewing angle
switching
control method
Prior art date
Application number
PCT/CN2022/114965
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English (en)
French (fr)
Inventor
何甲
吴春芸
Original Assignee
昆山龙腾光电股份有限公司
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.)
Filing date
Publication date
Application filed by 昆山龙腾光电股份有限公司 filed Critical 昆山龙腾光电股份有限公司
Priority to CN202280003523.4A priority Critical patent/CN115843376A/zh
Priority to PCT/CN2022/114965 priority patent/WO2024040543A1/zh
Publication of WO2024040543A1 publication Critical patent/WO2024040543A1/zh

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Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • 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
    • G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters

Definitions

  • the present invention relates to the field of display technology, and in particular to a display device and a control method with switchable wide and narrow viewing angles.
  • the viewing angle of the display has widened from about 112° to more than 162°. While people enjoy the visual experience brought by the large viewing angle, they also hope to effectively protect business secrets and personal privacy. Avoid business losses or embarrassment caused by leakage of screen information. Therefore, in addition to the requirement for wide viewing angles, in many situations it is also required that the display device has the function of switching between wide and narrow viewing angles.
  • louver shielding film on the display screen to achieve switching between wide and narrow viewing angles.
  • the louver shielding film can be used to cover the screen to reduce the viewing angle.
  • this method requires additional preparation of louvers.
  • the blocking film will cause great inconvenience to the user, and a louver blocking film can only achieve one viewing angle. Once the louver blocking film is attached, the viewing angle will be fixed in the narrow viewing angle mode, making it impossible to switch between the wide viewing angle mode and the wide viewing angle mode. Free switching between narrow viewing angle modes, and the privacy film will reduce the brightness and affect the display effect.
  • the computer system When using the function key, the computer system needs to be re-modified, which will cause great trouble to the customer.
  • the current 12 function keys have basically been used, such as adding and subtracting sounds, adding and subtracting brightness, muting, refreshing, screen off and other functions. There are no redundant function keys available.
  • wide and narrow viewing angle switching modes such as full-width viewing angle mode, left wide and right narrow mode, right wide and left narrow mode, full narrow viewing angle mode, etc.
  • a reset button is also required. This facilitates users to quickly switch to the initial perspective mode and enhances the user experience.
  • the purpose of the present invention is to provide a display device and a control method with switchable wide and narrow viewing angles, so as to solve the problem of high cost in the prior art of keyboard control of switching between wide and narrow viewing angles.
  • the present invention provides a control method that can switch between wide and narrow viewing angles.
  • the control method includes:
  • a wide and narrow viewing angle switching signal is sent and the switching of the wide and narrow viewing angle modes is controlled.
  • the action information is distance information
  • the storage action is storage distance
  • the control method includes:
  • a wide and narrow viewing angle switching signal is sent and the switching of the wide and narrow viewing angle modes is controlled.
  • control method also includes:
  • a wide and narrow viewing angle switching signal is sent and the switching of the wide and narrow viewing angle modes is controlled.
  • control method includes:
  • the action information is gesture information
  • the stored action is a gesture action
  • the control method includes:
  • a wide and narrow viewing angle switching signal is sent and the switching of the wide and narrow viewing angle modes is controlled.
  • the method for matching the gesture information with the gesture action includes:
  • the similarity between the gesture information and the gesture action is greater than 90%.
  • control method also includes:
  • the action information is facial action information
  • the stored action is facial action
  • the control method includes:
  • a wide and narrow viewing angle switching signal is issued and the switching of the wide and narrow viewing angle modes is controlled.
  • control method also includes:
  • the wide and narrow viewing angle switching signals are cyclic switching signals, and the cyclic switching signals are used to control the wide and narrow viewing angle modes to perform cyclic switching.
  • the wide and narrow viewing angle switching signal is a reset switching signal, and the reset switching signal is used to control the wide and narrow viewing angle mode to switch to an initial viewing angle mode.
  • the present application also provides a display device with switchable wide and narrow viewing angles.
  • the display device is controlled using the control method as described above.
  • the display device includes a display panel capable of switching between wide and narrow viewing angles and a circuit board that controls the display panel.
  • the display panel or/and the circuit board are provided with a motion sensor, and the motion sensor is used to obtain the user's motion information.
  • the display panel includes a display area and a non-display area located around the display area, and the motion sensor is provided on the glass substrate of the non-display area.
  • a processor is provided on the circuit board, the motion sensor and the display panel are both electrically connected to the processor, and the processor controls the display panel to perform wide and narrow viewing angle modes based on the motion information. switch.
  • the motion sensor includes an infrared sensor, an ultrasonic sensor and an image sensor.
  • sensors can be directly set to obtain the user's action information, such as infrared sensors and ultrasonic sensors. And image sensors, etc., so there is no need to set additional viewing angle switching buttons on the keyboard or re-modify the system multiplex function keys to control the switching of wide and narrow viewing angle modes, thereby simplifying the design of the keyboard and reducing the production cost of the keyboard.
  • Figure 1 is a schematic structural diagram of a display device in the present invention.
  • FIG. 2 is a schematic diagram of the circuit structure of the display device in the present invention.
  • Figure 3 is a schematic structural diagram of the motion sensor and peripheral circuits in the present invention.
  • FIG. 4 is a schematic structural diagram of a display device in another embodiment of the present invention.
  • Figure 5 is one of the schematic flow charts of the control method in Embodiment 1 of the present invention.
  • FIG. 6 is a second schematic flowchart of the control method in Embodiment 1 of the present invention.
  • FIG. 7 is a schematic flowchart of the control method in Embodiment 2 of the present invention.
  • Figure 8 is a schematic flow chart of the control method in Embodiment 3 of the present invention.
  • FIG. 9 is a schematic structural diagram of the display device in the first wide and narrow viewing angle mode according to the present invention.
  • FIG. 10 is a schematic plan view of the display device in the first wide and narrow viewing angle mode according to the present invention.
  • FIG. 11 is a schematic structural diagram of the display device in the second wide and narrow viewing angle mode according to the present invention.
  • FIG. 12 is a schematic plan view of the display device in the second wide and narrow viewing angle mode according to the present invention.
  • FIG. 13 is a schematic structural diagram of the display device in the third wide and narrow viewing angle mode according to the present invention.
  • FIG. 14 is a schematic plan view of the display device in the third wide and narrow viewing angle mode according to the present invention.
  • FIG. 15 is a schematic structural diagram of the display device in the fourth wide and narrow viewing angle mode of the present invention.
  • 16 is a schematic plan view of the display device in the fourth wide and narrow viewing angle mode according to the present invention.
  • Figure 5 is one of the schematic flow charts of the control method in Embodiment 1 of the present invention.
  • Figure 6 is a second schematic flowchart of the control method in Embodiment 1 of the present invention.
  • Embodiment 1 of the present invention provides a control method for switching between wide and narrow viewing angles.
  • the control method includes:
  • Step S1 Obtain the user's action information.
  • Step S2 Compare action information with stored actions.
  • Step S3 When the action information matches the stored action, send a wide and narrow viewing angle switching signal and control the switching of the wide and narrow viewing angle modes.
  • the wide and narrow viewing angle modes have multiple viewing angle modes.
  • the wide and narrow viewing angle modes include full-width viewing angle mode (Fig. 9 and Fig. 10), left-narrow and right-wide mode (Fig. 11 and Fig. 12), left-wide and right-narrow mode (Fig. 13 and Fig. 14), and full narrow viewing angle mode. mode ( Figure 15 and Figure 16), and the wide and narrow viewing angle switching signals are used to control the display device to switch between these wide and narrow viewing angle modes.
  • the display device can also be set to other wide and narrow viewing angle modes.
  • the action information is distance information
  • the storage action is storage distance. That is, in this embodiment, the distance information of the object from the display panel is monitored to send out a wide and narrow viewing angle switching signal and control the wide and narrow viewing angle modes. switch.
  • This control method includes:
  • Step S11 Monitor the distance information of the object distance display panel.
  • Step S21 Compare the distance information with the stored distance.
  • Step S31 When the distance information is less than the stored distance, send a wide and narrow viewing angle switching signal and control the switching of the wide and narrow viewing angle modes. For example, when the user needs to control the switching between wide and narrow viewing angle modes, the user can cover or touch the distance sensor with his hand or other objects. After determining that the distance sensor is blocked or an object is close to the distance sensor, the system will send a signal for switching between wide and narrow viewing angles. And control the switching between wide and narrow viewing angle modes.
  • Step S32 When the distance information is greater than or equal to the stored distance, the system will not send a wide-narrow viewing angle switching signal and maintain the existing wide-narrow viewing angle mode.
  • the storage distance can be set according to the sensitivity of triggering the wide and narrow viewing angle mode switching.
  • the storage distance is 3cm.
  • the system will send out the wide and narrow viewing angle switching signal and control the switching of the wide and narrow viewing angle modes.
  • control method also includes:
  • the first duration for which the monitored distance information is less than the stored distance is less than the stored distance.
  • the first duration is greater than the first preset time
  • a wide and narrow viewing angle switching signal is sent and the switching of the wide and narrow viewing angle modes is controlled, thereby preventing accidental touches.
  • the user may inadvertently move closer to the distance sensor, which will also cause the distance information to be smaller than the stored distance. Therefore, in order to prevent accidental touches, the user needs to approach the distance sensor with his hand or other objects for a certain period of time (for example, 1S) before the system can send out a wide and narrow viewing angle switching signal and control the switching of the wide and narrow viewing angle modes.
  • the first preset time can be set according to the actual situation to provide the user with a better user experience.
  • control method includes:
  • the distance information When the distance information is detected to be less than the stored distance, and then the distance information is detected to be greater than or equal to the stored distance, it will be recorded as a trigger action and a wide and narrow viewing angle switching signal will be sent to prevent the user from keeping his hands or other objects close to the distance sensor for too long. , causing the wide and narrow viewing angle modes to keep switching.
  • a hand or other object is close to the distance sensor for a long time (such as 3S) without leaving it, in order to prevent the system from continuously sending out a wide and narrow viewing angle switching signal, it is set to detect the distance again after the distance information is detected to be less than the stored distance.
  • the information is greater than or equal to the storage distance, it is recorded as a trigger action, and the system sends a signal for switching between wide and narrow viewing angles, thus increasing the user experience.
  • the wide and narrow viewing angle switching signals are reset switching signals.
  • the reset switching signal is used to control the wide and narrow viewing angle modes to switch to the initial viewing angle mode. That is, when the wide and narrow viewing angle switching signals are sent out, the display device is controlled to switch to the initial viewing angle mode, where the initial viewing angle mode is The viewing angle mode can be set according to the user's preferred viewing angle mode.
  • the wide and narrow viewing angle switching signals are cyclic switching signals
  • the cyclic switching signals are used to control the wide and narrow viewing angle modes to perform cyclic switching, that is, in the full width viewing angle mode according to a preset sequence (Figure 9 and Figure 10 ), left-narrow right-wide mode (Figure 11 and Figure 12), left-wide right narrow mode (Figure 13 and Figure 14) and full narrow viewing angle mode (Figure 15 and Figure 16).
  • FIG. 1 is a schematic structural diagram of a display device in the present invention.
  • FIG. 2 is a schematic diagram of the circuit structure of the display device in the present invention.
  • Figure 3 is a schematic structural diagram of the motion sensor and peripheral circuits in the present invention.
  • FIG. 9 is a schematic structural diagram of the display device in the first wide and narrow viewing angle mode according to the present invention.
  • 10 is a schematic plan view of the display device in the first wide and narrow viewing angle mode according to the present invention.
  • FIG. 11 is a schematic structural diagram of the display device in the second wide and narrow viewing angle mode according to the present invention.
  • FIG. 12 is a schematic plan view of the display device in the second wide and narrow viewing angle mode according to the present invention.
  • FIG. 13 is a schematic structural diagram of the display device in the third wide and narrow viewing angle mode according to the present invention.
  • 14 is a schematic plan view of the display device in the third wide and narrow viewing angle mode according to the present invention.
  • FIG. 15 is a schematic structural diagram of the display device in the fourth wide and narrow viewing angle mode of the present invention.
  • 16 is a schematic plan view of the display device in the fourth wide and narrow viewing angle mode according to the present invention.
  • this embodiment also provides a display device with switchable wide and narrow viewing angles.
  • the display device is controlled using the above control method.
  • the display device includes a display panel 100 capable of switching between wide and narrow viewing angles and a circuit board 300 that controls the display panel 100.
  • the display panel 100 or/and the circuit board 300 is provided with a motion sensor 200.
  • the motion sensor 200 is used to obtain user motion information. Specifically, the motion sensor 200 transmits the user's motion information to the circuit board 300.
  • the circuit board 300 processes and analyzes the motion information. When the motion information matches the stored motion, the circuit board 300 sends a wide and narrow viewing angle switching signal and controls the width and narrowness. Switching of perspective modes.
  • the circuit board 300 is provided with a processor (MCU) 310.
  • the motion sensor 200 and the display panel 100 are both electrically connected to the processor 310.
  • the processor 310 controls the display panel 100 to switch between wide and narrow viewing angle modes based on the motion information.
  • the motion sensor 200 is a distance sensor.
  • the distance sensor includes an infrared sensor and an ultrasonic sensor.
  • the infrared sensor has an infrared emitter and an infrared receiver.
  • the infrared emitter is used to emit infrared rays
  • the infrared ray receiver is used to receive
  • the infrared rays reflected by the object are used to detect the distance of the object or person by measuring the reflected infrared ray energy.
  • the detection distance is 3cm.
  • the motion sensor 200 may also be an image sensor to obtain the user's gesture information or facial movement information.
  • the infrared sensor is connected to the power supply and the processor 310 through the peripheral circuit.
  • the infrared sensor converts the received analog signal into a digital signal and transmits it to the processor 310 for processing and analysis.
  • the peripheral circuit is simple and can be directly implemented in on the glass substrate of the display device.
  • the display device also includes a switching button 320.
  • the switching button 320 is used to control the wide and narrow viewing angle modes to perform cyclic switching, that is, according to the preset setting. Sorting in full-width viewing angle mode (Figure 9 and Figure 10), left narrow right wide mode (Figure 11 and Figure 12), left wide right narrow mode (Figure 13 and Figure 14) and full narrow viewing angle mode ( Figure 15 and Figure 16 ) to perform cyclic switching between.
  • the switching button 320 can be reused by the function key. Therefore, when switching and resetting multiple wide and narrow viewing angle modes, only one function key needs to be reused, and there is no need to add additional keys to the keyboard. The existing A standard keyboard will do.
  • the circuit board 300 is also provided with a wide and narrow viewing angle control module 330.
  • the wide and narrow viewing angle control module 330 is used to control the display panel 100 to display a variety of wide and narrow viewing angle modes, such as full-width viewing angle mode (Figure 9 and Figure 10), left, narrow, and right. Wide mode ( Figure 11 and Figure 12), left wide and right narrow mode (Figure 13 and Figure 14) and full narrow viewing angle mode (Figure 15 and Figure 16).
  • the wide and narrow viewing angle control module 330 includes a wide and narrow viewing angle controller 331 and a wide and narrow viewing angle drive circuit 332.
  • the output end of the processor 310 is connected to the input end of the wide and narrow viewing angle controller 331, and the output end of the wide and narrow viewing angle controller 331 is connected to the wide and narrow viewing angle drive circuit 332.
  • the input terminal is connected, and the output terminal of the wide and narrow viewing angle driving circuit 332 is connected to the display panel 100 .
  • the wide and narrow viewing angle controller 331 outputs different signals according to different processing results of the processor 310.
  • the wide and narrow viewing angle driving circuit 332 applies different wide and narrow viewing angle driving voltages to the display panel 100 according to the signals output by the wide and narrow viewing angle controller 331, so that the display panel 100 displays Different wide and narrow viewing angle modes.
  • the display panel 100 includes a display area 110 and a non-display area 120 located around the display area 110 .
  • the motion sensor 200 is disposed on the glass substrate of the non-display area 120 . Placing the motion sensor 200 directly on the display panel 100 can increase the added value of the display panel and reduce the design cost of back-end customers.
  • the motion sensor 200 is an infrared sensor. The size of the infrared sensor is 2mm*1mm*0.35mm. The thickness of the glass substrate of the display panel 100 is 0.3-0.5mm. Therefore, the infrared sensor can be placed on the 0.4mm glass substrate without any thickness.
  • the infrared sensor can even be placed on 0.3mm glass. Since the infrared sensor is disposed on the glass substrate of the non-display area 120, it is also necessary to drill holes in the housing of the electronic device (computer) screen edge to expose the infrared sensor.
  • the motion sensor 200 can also be disposed on the circuit board 300 , thereby reducing the signal transmission distance between the motion sensor 200 and the processor 310 and improving signal transmission efficiency. Similarly, it is still necessary to drill holes in the casing of the edge of the screen of the electronic device (computer) to expose the motion sensor 200 .
  • the display panel 100 includes a dimming box 10 and a display liquid crystal cell 20 .
  • the dimming box 10 and the display liquid crystal cell 20 are stacked.
  • the dimming box 10 is disposed below the display liquid crystal box 20 , that is, the dimming box 10 is disposed between the display liquid crystal box 20 and the backlight module 40 .
  • the dimming box 10 is used to control the viewing angle of the display device.
  • the liquid crystal box 20 is used to control the display device to display a normal picture.
  • the dimming box 10 can also be provided above the display liquid crystal box 20 , or the dimming boxes 10 can be provided on both upper and lower sides of the display liquid crystal box 20 .
  • the dimming box 10 includes a first substrate 11 , a second substrate 12 opposite to the first substrate 11 , and a first liquid crystal layer 13 disposed between the first substrate 11 and the second substrate 12 .
  • the first liquid crystal layer 13 is a positive liquid crystal molecule, that is, a liquid crystal molecule whose dielectric anisotropy is positive.
  • the first liquid crystal layer 13 is lying flat, that is, the positive liquid crystal molecules in the first liquid crystal layer 13 are aligned parallel to the first substrate 10 and the second substrate 20 , and the molecules on the side close to the first substrate 10 are aligned parallel to the first substrate 10 and the second substrate 20 .
  • the positive liquid crystal molecules are anti-parallel to the alignment direction of the positive liquid crystal molecules on the side close to the second substrate 20 .
  • the positive liquid crystal molecules may have a smaller pretilt angle (for example, less than 4.5°) during initial alignment, that is, the positive liquid crystal molecules initially form a smaller angle with the first substrate 10 and the second substrate 20. It can accelerate the deflection of positive liquid crystal molecules toward the vertical direction when switching to a narrow viewing angle.
  • the first liquid crystal layer 13 may also use negative liquid crystal molecules, and the negative liquid crystal molecules in the first liquid crystal layer 13 are perpendicular or approximately perpendicular to the first substrate 10 and the second substrate 20 .
  • the first polarizer 31 is provided on the first substrate 11
  • the second polarizer 32 is provided on the second substrate 12 .
  • the transmission axis of the first polarizer 31 and the transmission axis of the second polarizer 32 are perpendicular to each other.
  • the polarizer 31 is disposed between the dimming box 10 and the display liquid crystal cell 20
  • the second polarizer 32 is disposed on the side of the second substrate 12 away from the first liquid crystal layer 13 .
  • the first substrate 11 is provided with a viewing angle control electrode 111 on the side facing the first liquid crystal layer 13
  • the second substrate 12 is provided with a first electrode 121 and a third electrode 121 that cooperate with the viewing angle control electrode 111 on a side facing the first liquid crystal layer 13 .
  • the viewing angle control electrode 111 is a planar electrode covering the entire surface of the first substrate 11
  • the first electrode 121 and the second electrode 122 are block electrodes covering the entire surface of the second substrate 12 .
  • the first electrode 121 and the second electrode 122 respectively control the switching of wide and narrow viewing angles in different areas.
  • the first electrode 121 is used to control the switching of wide and narrow viewing angles in the right half of the display panel 100
  • the second electrode 122 is used to control the left half of the display panel 100 . Switch between wide and narrow viewing angles of the area.
  • the display liquid crystal cell 20 includes a color filter substrate 21 , an array substrate 22 disposed opposite to the color filter substrate 21 , and a second liquid crystal layer 23 located between the color filter substrate 21 and the array substrate 22 .
  • the second liquid crystal layer 23 uses positive liquid crystal molecules, that is, liquid crystal molecules with positive dielectric anisotropy.
  • the positive liquid crystal molecules in the second liquid crystal layer 23 are parallel to the color filter substrate 21 Alignment is performed with the array substrate 22 , and the positive liquid crystal molecules on the side close to the color filter substrate 21 are parallel or anti-parallel to the alignment directions of the positive liquid crystal molecules on the side close to the array substrate 22 .
  • the array substrate 22 and the first substrate 11 may share a common base to reduce the cell thickness of the display panel.
  • a third polarizer 33 is provided on the side of the display liquid crystal cell 20 away from the dimming box 10 .
  • the transmission axis of the polarizer between the dimming box 10 and the display liquid crystal cell 20 is perpendicular to the transmission axis of the third polarizer 33 .
  • the third polarizer 33 is disposed on the color filter substrate 21 , and the transmission axis of the third polarizer 33 and the transmission axis of the first polarizer 31 are perpendicular to each other.
  • the color filter substrate 21 is provided with a color resist layer 212 arranged in an array and a black matrix 211 that separates the color resist layers 212.
  • the color resist layer 212 includes three colors: red (R), green (G), and blue (B). Color resist material, and correspondingly form sub-pixels of three colors: red (R), green (G), and blue (B).
  • the array substrate 22 is formed by a plurality of scanning lines and a plurality of data lines that are insulated and crossed to form a plurality of pixel units.
  • Each pixel unit is provided with a pixel electrode 222 and a thin film transistor.
  • the pixel electrode 222 is electrically connected to the data line of the adjacent thin film transistor through the thin film transistor.
  • the thin film transistor includes a gate electrode, an active layer, a drain electrode and a source electrode.
  • the gate electrode and the scan line are located on the same layer and are electrically connected.
  • the gate electrode and the active layer are isolated by an insulating layer.
  • the source electrode and the data line are electrically connected.
  • the drain electrode and the pixel electrode 222 are electrically connected through the contact hole.
  • a common electrode 221 is also provided on the side of the array substrate 22 facing the second liquid crystal layer 23 .
  • the common electrode 221 and the pixel electrode 222 are located on different layers and are insulated and isolated by an insulating layer.
  • the common electrode 221 may be located above or below the pixel electrode 222 (shown in FIG. 9 is that the common electrode 221 is located below the pixel electrode 222).
  • the common electrode 221 is a planar electrode provided over the entire surface
  • the pixel electrode 222 is a block electrode provided entirely within each pixel unit or a slit electrode with multiple electrode strips to form a fringe field switching mode ( Fringe Field Switching (FFS).
  • FFS Fringe Field Switching
  • the pixel electrode 222 and the common electrode 221 may be located on the same layer, but they are insulated and isolated from each other.
  • Each of the pixel electrode 222 and the common electrode 221 may include multiple electrode strips.
  • the electrode strips of the pixel electrode 222 The electrode strips of the common electrode 221 are alternately arranged to form an in-plane switching mode (In-Plane Switching, IPS); or, in other embodiments, the array substrate 22 is provided with a pixel electrode 222 on a side facing the second liquid crystal layer 23, and the color filter substrate 21 is provided with a common electrode on a side facing the second liquid crystal layer 23. 221, to form a TN mode or a VA mode.
  • the TN mode and the VA mode please refer to the existing technology and will not be repeated here.
  • the first substrate 11, the second substrate 12, the color filter substrate 21 and the array substrate 22 can be made of glass, acrylic, polycarbonate and other materials.
  • the material of the viewing angle control electrode 111, the first electrode 121 and the second electrode 122, the common electrode 221 and the pixel electrode 222 may be indium tin oxide (ITO) or indium zinc oxide (IZO).
  • a backlight module 40 is provided on the side of the dimming box 10 away from the display liquid crystal box 20.
  • the backlight module 40 adopts collimated backlight (CBL). backlight) mode, which can collect light to ensure the display effect.
  • CBL collimated backlight
  • the backlight module 40 includes a backlight source 41 and a privacy layer 43 .
  • the privacy layer 43 is used to reduce the range of light emission angles.
  • a brightness enhancement film 42 is also provided between the backlight source 41 and the privacy layer 43 .
  • the brightness enhancement film 42 increases the brightness of the backlight module 40 .
  • the privacy-preventing layer 43 is equivalent to a miniature blind structure, which can block light with a larger incident angle and allow light with a smaller incident angle to pass through, thereby reducing the angle range of the light passing through the privacy-preventing layer 43 .
  • the anti-privacy layer 43 includes a plurality of photoresist walls arranged in parallel and a light-transmitting hole located between two adjacent photoresist walls. Light-absorbing materials are provided on both sides of the photoresist wall.
  • the backlight module 41 can be an edge-type backlight module or a collimated backlight module.
  • a DC common voltage Vcom is applied to the common electrode 221 , a first voltage is applied to the viewing angle control electrode 111 , and a second voltage is applied to both the first electrode 121 and the second electrode 122 .
  • the first voltage and the second voltage are both the same as the DC common voltage, and no vertical electric field or a small vertical electric field (for example, less than 0.5V) is formed between the first substrate 11 and the second substrate 12 .
  • the positive liquid crystal molecules of the first liquid crystal layer 13 are basically not deflected in the vertical direction and lie flat, presenting a full-width viewing angle display.
  • the pixel electrode 222 applies a corresponding gray-scale voltage, and a voltage difference is formed between the pixel electrode 222 and the common electrode 221 to generate a horizontal electric field (E1 in Figure 9), causing the positive liquid crystal molecules to move in the horizontal direction parallel to the horizontal electric field.
  • the gray-scale voltage includes 0 to 255 gray-scale voltages.
  • a DC common voltage Vcom is applied to the common electrode 221 , a first voltage is applied to the viewing angle control electrode 111 , a second voltage is applied to the first electrode 121 , and a second voltage is applied to the first electrode 121 .
  • Electrode 122 applies a third voltage.
  • the first voltage and the second voltage are both the same as the DC common voltage, and the third voltage is an AC voltage that fluctuates up and down with the DC common voltage.
  • no vertical electric field or a small vertical electric field (for example, less than 0.5V) is formed between the first substrate 11 and the second substrate 12, and the positive liquid crystal molecules of the first liquid crystal layer 13 move vertically.
  • the pixel electrode 222 applies a corresponding gray-scale voltage, and a voltage difference is formed between the pixel electrode 222 and the common electrode 221 to generate a horizontal electric field (E1 in Figure 11), causing the positive liquid crystal molecules to move in the horizontal direction parallel to the horizontal electric field.
  • the gray-scale voltage includes 0 to 255 gray-scale voltages.
  • the DC common voltage Vcom is applied to the common electrode 221
  • the first voltage is applied to the viewing angle control electrode 111
  • the third voltage is applied to the first electrode 121
  • the second voltage is applied to the first electrode 121 .
  • Electrode 122 applies a second voltage.
  • the first voltage and the second voltage are both the same as the DC common voltage
  • the third voltage is an AC voltage that fluctuates up and down with the DC common voltage.
  • a large vertical electric field (E3 in FIG. 13) is formed between the first substrate 11 and the second substrate 12, and the positive liquid crystal molecules of the first liquid crystal layer 13 generate a large amount of energy in the vertical direction.
  • the brightness of the display panel 100 in the oblique viewing direction is reduced and the one-way viewing angle is narrowed, thereby achieving a narrow viewing angle display; and in the left half of the display panel 100, there is no gap between the first substrate 11 and the second substrate 12.
  • a vertical electric field is formed or a small vertical electric field is formed (for example, less than 0.5V).
  • the positive liquid crystal molecules of the first liquid crystal layer 13 are basically not deflected in the vertical direction and lie flat, presenting a wide viewing angle display.
  • the display panel 100 finally realizes Left wide right right narrow viewing angle display.
  • the pixel electrode 222 applies a corresponding gray-scale voltage, and a voltage difference is formed between the pixel electrode 222 and the common electrode 221 to generate a horizontal electric field (E1 in Figure 13), causing the positive liquid crystal molecules to move in the horizontal direction parallel to the horizontal electric field.
  • the gray-scale voltage includes gray-scale voltages from 0 to 255.
  • a DC common voltage Vcom is applied to the common electrode 221 , a first voltage is applied to the viewing angle control electrode 111 , and a third voltage is applied to both the first electrode 121 and the second electrode 122 .
  • the first voltage is the same as the DC common voltage, and the third voltage is an AC voltage that fluctuates up and down with the DC common voltage.
  • a large vertical electric field is formed between the first substrate 11 and the second substrate 12 (E2 and E3 in Figure 15).
  • the positive liquid crystal molecules of the first liquid crystal layer 13 are greatly deflected in the vertical direction and assume a tilted posture, so that the brightness of the display panel 100 is reduced in the oblique viewing direction and the unidirectional viewing angle is narrowed, achieving a full narrow viewing angle display.
  • the pixel electrode 222 applies a corresponding gray-scale voltage, and a voltage difference is formed between the pixel electrode 222 and the common electrode 221 to generate a horizontal electric field (E1 in Figure 15), causing the positive liquid crystal molecules to move in the horizontal direction parallel to the horizontal electric field.
  • the gray-scale voltage includes 0 to 255 gray-scale voltages.
  • the voltage signals on the viewing angle control electrode 111, the first electrode 121 and the second electrode 122 are controlled according to different analysis results of the processor 310.
  • FIG. 7 is a schematic flowchart of the control method in Embodiment 2 of the present invention.
  • the display device and control method with switchable wide and narrow viewing angles provided in the second embodiment of the present invention are the same as the display device and control method with switchable wide and narrow viewing angles in the first embodiment ( Figures 1 to 6 and Figures 9 to 16).
  • the control methods are basically the same. The difference is that in this embodiment, the action information is gesture information and the stored action is gesture action. That is, in this embodiment, the user's gesture information is monitored to send out a wide and narrow viewing angle switching signal according to the gesture information. And control the switching between wide and narrow viewing angle modes.
  • This control method includes:
  • Step S12 Obtain the user's gesture information.
  • Step S22 Compare the gesture information with the gesture action.
  • Step S31 When the gesture information matches the gesture action, send a wide and narrow viewing angle switching signal and control the switching of the wide and narrow viewing angle modes. For example, when the user needs to control the switching between wide and narrow viewing angle modes, the user can make an "OK" gesture, a five-finger spread gesture, a fist gesture, a thumbs-up gesture, etc., and then combine the gesture information made by the user with the stored gesture actions. A comparison is performed, and the system sends a wide and narrow viewing angle switching signal based on the comparison result, thereby switching between the wide and narrow viewing angle modes.
  • the system recognizes that the user has made an "OK" gesture, it will send out a wide and narrow viewing angle switching signal to switch to the next wide and narrow viewing angle mode; if the system recognizes that the user has made a thumbs up, it will send a wide and narrow viewing angle switching signal to switch to the previous mode.
  • a wide and narrow viewing angle mode if the system recognizes that the user makes a five-finger spread gesture, it sends a wide and narrow viewing angle switching signal to switch to the initial viewing mode; if the system recognizes that the user makes a fist gesture, it sends a wide and narrow viewing angle switching signal to switch to Final perspective mode.
  • the system can also send out a wide-narrow viewing angle switching signal corresponding to the gesture action based on the comparison results. For example, if the system recognizes that the user has made an "OK" gesture, it will send a full-width viewing angle switching signal and switch to the full-width viewing angle mode. ; If the system recognizes that the user has made a five-finger spread gesture, it will send out a full narrow viewing angle switching signal and switch to the full narrow viewing angle mode; if the system recognizes that the user has made a thumbs up gesture, it will send out a left narrow viewing angle switching signal and a right wide viewing angle switching signal.
  • other gestures can also be set to control the effect and switching of the wide and narrow viewing angles.
  • an upward gesture controls the upper half to prevent privacy
  • a downward gesture controls the lower half
  • a left gesture controls the left half
  • a right gesture controls the right half
  • If you make a forward gesture you will control the privacy area to enlarge
  • if you make a backward gesture you will control the privacy area to shrink
  • if you make a clockwise circle gesture you will increase the brightness and increase the wide viewing angle effect
  • you make a counterclockwise circle gesture you will decrease the brightness.
  • to increase the narrow viewing angle effect make a waving gesture to control the viewing angle to reset and switch to the initial viewing angle mode.
  • Step S32 When the gesture information does not match the gesture action, the system will not send a wide-narrow viewing angle switching signal and maintain the existing wide-narrow viewing angle mode.
  • the method of matching the gesture information and the gesture action includes: the similarity between the gesture information and the gesture action is greater than 90%. That is, in order to prevent the system from misjudgment, after comparative analysis, the system will only send out a signal for switching between wide and narrow viewing angles when the similarity between the gesture information and the gesture action is greater than 90%.
  • control method also includes:
  • Monitor gesture information for a second duration
  • the second duration is greater than the second preset time
  • a wide and narrow viewing angle switching signal is sent and the switching of the wide and narrow viewing angle modes is controlled, thereby preventing accidental touches.
  • the user may unintentionally perform a gesture similar to a stored gesture, which will also cause the system to send a signal for switching between wide and narrow viewing angles. Therefore, in order to prevent accidental touches, the user needs to make a gesture and hold it for a certain period of time (for example, 0.5S) before the system can send out a switching signal between wide and narrow viewing angles and control the switching between wide and narrow viewing angle modes.
  • the second preset time can be set according to the actual situation to provide the user with a better user experience.
  • This embodiment also provides a display device with switchable wide and narrow viewing angles.
  • the display device is controlled using the above control method.
  • the display device includes a display panel 100 capable of switching between wide and narrow viewing angles and a circuit board 300 that controls the display panel 100.
  • the display panel 100 or/and the circuit board 300 is provided with a motion sensor 200.
  • the motion sensor 200 is used to obtain user motion information. Specifically, the motion sensor 200 transmits the user's motion information to the circuit board 300.
  • the circuit board 300 processes and analyzes the motion information. When the motion information matches the stored motion, the circuit board 300 sends a wide and narrow viewing angle switching signal and controls the width and narrowness. Switching of perspective modes.
  • the motion sensor 200 is an image sensor, because , In this embodiment, it is necessary to obtain the user's gesture information, and the user's image can be collected through the image sensor, thereby analyzing the gestures made by the user.
  • the motion sensor 200 may also use a special infrared sensor, such as a sensor with infrared gesture recognition.
  • the display device does not need to be provided with a switching button 320 because the user can make a variety of gestures, so that multiple gesture information is sufficient to meet the needs of switching between different wide and narrow viewing angle modes.
  • FIG 8 is a schematic flow chart of the control method in Embodiment 3 of the present invention.
  • the display device and control method with switchable wide and narrow viewing angles provided in the third embodiment of the present invention are the same as the display device and control method with switchable wide and narrow viewing angles in the first embodiment ( Figures 1 to 6 and Figures 9 to 16).
  • the control methods are basically the same. The difference is that in this embodiment, the action information is facial action information, and the stored action is facial action. That is, in this embodiment, the user's facial action information is monitored, and the width and width are emitted according to the facial action information. Viewing angle switching signal and controls the switching of wide and narrow viewing angle modes.
  • This control method includes:
  • Step S13 Obtain the user's facial action information.
  • Step S23 Compare facial action information with facial actions.
  • Step S31 When the facial movement information matches the facial movement, send a wide and narrow viewing angle switching signal and control the switching of the wide and narrow viewing angle modes.
  • the user can make facial actions such as opening the left eye and closing the right eye, opening the right eye and closing the left eye, smiling, laughing, etc., and then store the facial action information made by the user.
  • the facial movements are compared, and the system sends a wide-narrow viewing angle switching signal based on the comparison results, thereby switching between wide and narrow viewing angle modes.
  • the system recognizes that the user has made a facial action of opening the left eye and closing the right eye, it will send a wide and narrow viewing angle switching signal to switch to the next wide and narrow viewing angle mode; if the system recognizes that the user has made a facial action of opening the right eye and closing the left eye , then a wide and narrow viewing angle switching signal is sent to switch to the previous wide and narrow viewing angle mode; if the system recognizes that the user makes a facial movement of smiling, then a wide and narrow viewing angle switching signal is sent to switch to the initial viewing angle mode; if the system recognizes a laughing face action, the wide and narrow viewing angle switching signal is sent to switch to the final viewing angle mode.
  • the system can also send out a wide and narrow viewing angle switching signal corresponding to the gesture action based on the comparison results. For example, if the system recognizes that the user has made a facial movement of opening the left eye and closing the right eye, it will send a left wide and right narrow viewing angle switching signal.
  • Step S32 When the facial movement information does not match the stored facial movement, the system will not send a wide-narrow viewing angle switching signal and maintain the existing wide-narrow viewing angle mode.
  • the method of matching the facial action information with the facial action includes: the similarity between the facial action information and the facial action is greater than 90%. That is, in order to prevent the system from misjudgment, after comparative analysis, the system will only send out a signal for switching between wide and narrow viewing angles when the similarity between facial movement information and facial movements is greater than 90%.
  • control method also includes:
  • the third duration is greater than the third preset time
  • a wide and narrow viewing angle switching signal is sent and the switching of the wide and narrow viewing angle modes is controlled, thereby preventing accidental touches.
  • the user may inadvertently make facial movement information similar to the stored facial movement information, which will also cause the system to send a signal for switching between wide and narrow viewing angles. Therefore, in order to prevent accidental touches, the user needs to make facial movement information and maintain it for a certain period of time (for example, 0.5S) before the system can send out a wide and narrow viewing angle switching signal and control the switching of the wide and narrow viewing angle modes.
  • the third preset time can be set according to the actual situation to provide the user with a better user experience.
  • This embodiment also provides a display device with switchable wide and narrow viewing angles.
  • the display device is controlled using the above control method.
  • the display device includes a display panel 100 capable of switching between wide and narrow viewing angles and a circuit board 300 that controls the display panel 100.
  • the display panel 100 or/and the circuit board 300 is provided with a motion sensor 200.
  • the motion sensor 200 is used to obtain user motion information. Specifically, the motion sensor 200 transmits the user's motion information to the circuit board 300.
  • the circuit board 300 processes and analyzes the motion information. When the motion information matches the stored motion, the circuit board 300 sends a wide and narrow viewing angle switching signal and controls the width and narrowness. Switching of perspective modes.
  • the motion sensor 200 is an image sensor , because in this embodiment, it is necessary to obtain the user's facial action information, and the user's image can be collected through the image sensor, thereby analyzing the user's facial action.
  • the display device does not need to be provided with a switching button 320 because the user can make a variety of facial movements, and thus a variety of facial movement information is sufficient to meet the needs of switching between different wide and narrow viewing angle modes.
  • locative terms such as up, down, left, right, front, and back are defined based on the positions of the structures in the drawings and the positions of the structures relative to each other. They are only for the purpose of expressing the technical solution. Clear and convenient. It should be understood that the use of the locative words shall not limit the scope of protection claimed in this application. It should also be understood that the terms “first”, “second”, etc. used herein are only used for distinction in name and are not used to limit the number or order.
  • sensors can be directly set to obtain the user's action information, such as infrared sensors and ultrasonic sensors. And image sensors, etc., so there is no need to set additional viewing angle switching buttons on the keyboard or re-modify the system multiplex function keys to control the switching of wide and narrow viewing angle modes, thereby simplifying the design of the keyboard and reducing the production cost of the keyboard.

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Abstract

一种宽窄视角可切换的显示装置及控制方法，控制方法包括：获取用户的动作信息；将动作信息与存储动作进行比对；当动作信息与存储动作相匹配时，发出宽窄视角切换信号并控制宽窄视角模式的切换。通过获取用户的动作信息并与存储动作进行比对，然后根据比对结果发出宽窄视角切换信号并控制宽窄视角模式的切换，因此可以直接设置传感器来获取用户的动作信息，例如红外线传感器、超声波传感器以及图像传感器等，从而无需在键盘上额外设置视角切换按键或是重新修改系统复用function键来控制宽窄视角模式的切换，以实现简化键盘的设计，降低键盘的制作成本。

Description

宽窄视角可切换的显示装置及控制方法 技术领域
本发明涉及显示器技术领域，特别是涉及一种宽窄视角可切换的显示装置及控制方法。
 背景技术
随着液晶显示技术的不断进步，显示器的可视角度已经由原来的112°左右拓宽到162°以上，人们在享受大视角带来视觉体验的同时，也希望有效保护商业机密和个人隐私，以避免屏幕信息外泄而造成的商业损失或尴尬。因此除了宽视角需求之外，在许多场合还需要显示装置具备宽窄视角相互切换的功能。
目前，有的现有技术主要采取在显示屏上贴附百叶遮挡膜来实现宽窄视角切换，当需要防窥时，利用百叶遮挡膜遮住屏幕即可缩小视角，但这种方式需要额外准备百叶遮挡膜，会给使用者造成极大的不便，而且一张百叶遮挡膜只能实现一种视角，一旦贴附上百叶遮挡膜后，视角便固定在窄视角模式，导致无法在宽视角模式和窄视角模式之间进行自由切换，而且防窥片会造成辉度降低影响显示效果。
还有的现有技术利用彩膜基板(color filter，CF)一侧的视角控制电极给液晶分子施加一个垂直电场，使液晶朝竖直方向偏转，实现窄视角模式。通过控制视角控制电极上的电压，从而可以实现在宽视角和窄视角之间进行切换。
虽然在现有技术中，有些显示器已经具备宽视角与窄视角相互切换的功能，但是宽窄视角之间的切换需要人为按下切换按键，即需要在电脑的键盘额外设置用于控制视角切换的切换按键。由于现有的键盘都是采用标准键盘，例如104键标准键盘和87键标准键盘。如果需要实现宽窄视角切换，就还需要额外设置用于控制宽窄视角切换的切换按键，这就需要重新定义标准键盘的键数、重新开模以及重新设计，导致实现宽窄视角切换的成本非常大；或者，通过function键(功能键)来进行切换的，采用function键时，需要重新修改电脑系统，会对客户带来很大困扰。而且，目前的12个function键基本已经被复用完，例如加减声音、加减亮度、静音、刷新、熄屏等功能，没有多余的function键可用。
 技术问题
现有的宽窄视角切换模式也越加增多，例如全宽视角模式、左宽右窄模式、右宽左窄模式、全窄视角模式等，在宽窄视角切换模式较多时，还需要设置复位按键，以便于用户快速切换至初始视角模式，增加用户的使用体验。
因此，不论是在键盘上额外设置切换按键，还是采用function键复用切换按键，都会增加较大的麻烦和成本。
 技术解决方案
为了克服现有技术中存在的缺点和不足，本发明的目的在于提供一种宽窄视角可切换的显示装置及控制方法，以解决现有技术中键盘控制宽窄视角切换的成本较高的问题。
本发明的目的通过下述技术方案实现：
本发明提供一种宽窄视角可切换的控制方法，所述控制方法包括：
获取用户的动作信息；
将所述动作信息与存储动作进行比对；
当所述动作信息与所述存储动作相匹配时，发出宽窄视角切换信号并控制宽窄视角模式的切换。
进一步地，所述动作信息为距离信息，所述存储动作为存储距离，所述控制方法包括：
监测物体距离显示面板的距离信息；
将所述距离信息与存储距离进行比对；
当所述距离信息小于所述存储距离时，发出宽窄视角切换信号并控制宽窄视角模式的切换。
进一步地，所述控制方法还包括：
监测所述距离信息小于所述存储距离的第一持续时间；
当所述第一持续时间大于第一预设时间时，发出宽窄视角切换信号并控制宽窄视角模式的切换。
进一步地，所述控制方法包括：
当监测到所述距离信息小于所述存储距离之后，又监测到所述距离信息大于或等于所述存储距离时，记为一次触发动作并发出一次宽窄视角切换信号。
进一步地，所述动作信息为手势信息，所述存储动作为手势动作，所述控制方法包括：
获取用户的手势信息；
将所述手势信息与手势动作进行比对；
当所述手势信息与所述手势动作相匹配时，发出宽窄视角切换信号并控制宽窄视角模式的切换。
进一步地，所述手势信息与所述手势动作相匹配的方法包括：
所述手势信息与所述手势动作的相似度大于90%。
进一步地，所述控制方法还包括：
监测所述手势信息的第二持续时间；
当所述第二持续时间大于第二预设时间时，发出宽窄视角切换信号并控制宽窄视角模式的切换。
进一步地，所述动作信息为面部动作信息，所述存储动作为面部动作，所述控制方法包括：
获取用户的面部动作信息；
将所述面部动作信息与面部动作进行比对；
当所述面部动作信息与所述面部动作相匹配时，发出宽窄视角切换信号并控制宽窄视角模式的切换。
进一步地，所述控制方法还包括：
监测所述面部动作信息的第三持续时间；
当所述第三持续时间大于第三预设时间时，发出宽窄视角切换信号并控制宽窄视角模式的切换。
进一步地，所述宽窄视角切换信号为循坏切换信号，所述循坏切换信号用于控制所述宽窄视角模式进行循坏切换。
进一步地，所述宽窄视角切换信号为复位切换信号，所述复位切换信号用于控制所述宽窄视角模式切换至初始视角模式。
本申请还提供一种宽窄视角可切换的显示装置，所述显示装置采用如上所述的控制方法进行控制，所述显示装置包括能够进行宽窄视角切换的显示面板以及控制所述显示面板的电路板，所述显示面板或/和所述电路板上设有动作传感器，所述动作传感器用于获取用户的动作信息。
进一步地，所述显示面板包括显示区和位于所述显示区周边的非显示区，所述动作传感器设于所述非显示区的玻璃基板上。
进一步地，所述电路板上设有处理器，所述动作传感器和所述显示面板均与所述处理器电性连接，所述处理器根据所述动作信息控制所述显示面板进行宽窄视角模式的切换。
进一步地，所述动作传感器包括红外线传感器、超声波传感器以及图像传感器。
 有益效果
通过获取用户的动作信息并与存储动作进行比对，然后根据比对结果发出宽窄视角切换信号并控制宽窄视角模式的切换，因此可以直接设置传感器来获取用户的动作信息，例如红外线传感器、超声波传感器以及图像传感器等，从而无需在键盘上额外设置视角切换按键或是重新修改系统复用function键来控制宽窄视角模式的切换，以实现简化键盘的设计，降低键盘的制作成本。
 附图说明
图1是本发明中显示装置的结构示意图。
图2是本发明中显示装置的电路结构示意图。
图3是本发明中动作传感器及外围电路的结构示意图。
图4是本发明另一实施例中显示装置的结构示意图。
图5是本发明实施例一中控制方法的流程示意图之一。
图6是本发明实施例一中控制方法的流程示意图之二。
图7是本发明实施例二中控制方法的流程示意图。
图8是本发明实施例三中控制方法的流程示意图。
图9是本发明中显示装置在第一宽窄视角模式的结构示意图。
图10是本发明中显示装置在第一宽窄视角模式的平面结构示意图。
图11是本发明中显示装置在第二宽窄视角模式的结构示意图。
图12是本发明中显示装置在第二宽窄视角模式的平面结构示意图。
图13是本发明中显示装置在第三宽窄视角模式的结构示意图。
图14是本发明中显示装置在第三宽窄视角模式的平面结构示意图。
图15是本发明中显示装置在第四宽窄视角模式的结构示意图。
图16是本发明中显示装置在第四宽窄视角模式的平面结构示意图。
 本发明的实施方式
为更进一步阐述本发明为达成预定发明目的所采取的技术手段及功效，以下结合附图及较佳实施例，对依据本发明提出的宽窄视角可切换的显示装置及控制方法的具体实施方式、结构、特征及其功效，详细说明如下：
[实施例一]
图5是本发明实施例一中控制方法的流程示意图之一。图6是本发明实施例一中控制方法的流程示意图之二。
如图5至图6所示，本发明实施例一提供的一种宽窄视角可切换的控制方法，该控制方法包括：
步骤S1：获取用户的动作信息。
步骤S2：将动作信息与存储动作进行比对。
步骤S3：当动作信息与存储动作相匹配时，发出宽窄视角切换信号并控制宽窄视角模式的切换。
当然，可以理解地是，当动作信息与存储动作不相匹配时，系统不会发出宽窄视角切换信号并保持现有宽窄视角模式。
其中，宽窄视角模式具有多种视角模式。本实施例中，宽窄视角模式包括全宽视角模式(图9和图10)、左窄右宽模式(图11和图12)、左宽右窄模式(图13和图14)以及全窄视角模式(图15和图16)，而宽窄视角切换信号用于控制显示装置在这些宽窄视角模式中进行切换。当然，根据实际需要，显示装置还可以设置其他的宽窄视角模式。
本实施例中，如图6所示，动作信息为距离信息，存储动作为存储距离，即本实施例中，通过监测物体离显示面板的距离信息，从而发出宽窄视角切换信号并控制宽窄视角模式的切换。该控制方法包括：
步骤S11：监测物体距离显示面板的距离信息。
步骤S21：将距离信息与存储距离进行比对。
步骤S31：当距离信息小于存储距离时，发出宽窄视角切换信号并控制宽窄视角模式的切换。例如，当用户需要控制宽窄视角模式的切换时，用户可以用手或其他物品遮挡一下或者触碰一下距离传感器，判断到距离传感器有遮挡或有物体靠近距离传感器后，系统就发出宽窄视角切换信号并控制宽窄视角模式的切换。
步骤S32：当距离信息大于或等于存储距离时，系统不会发出宽窄视角切换信号并保持现有宽窄视角模式。
其中，存储距离可以根据触发宽窄视角模式切换的灵敏度来设置，例如存储距离为3cm，当监测物体距离显示面板小于3cm时，系统就发出宽窄视角切换信号并控制宽窄视角模式的切换。存储距离的数值越大，则灵敏度越高。
进一步地，该控制方法还包括：
监测距离信息小于存储距离的第一持续时间。
当第一持续时间大于第一预设时间时，发出宽窄视角切换信号并控制宽窄视角模式的切换，从而可以防止发生误触的情况。例如，用户可能无意间靠近了一下距离传感器，这也会导致距离信息小于存储距离。因此，为了防止发生误触的情况，需要用户用手或其他物品靠近距离传感器一定时间(例如1S)后，系统才能发出宽窄视角切换信号并控制宽窄视角模式的切换。具体地第一预设时间可以根据实际的情况进行设定，以给用户更好的使用体验。
进一步地，该控制方法包括：
当监测到距离信息小于存储距离之后，又监测到距离信息大于或等于存储距离时，记为一次触发动作并发出一次宽窄视角切换信号，从而防止用户用手或其他物品靠近距离传感器的时间过长，导致宽窄视角模式一直在进行切换。例如，当用手或其他物品靠近距离传感器很长时间(例如3S)没有离开时，为了避免系统持续发出宽窄视角切换信号，因此，设置为当监测到距离信息小于存储距离之后，又监测到距离信息大于或等于存储距离时，记为一次触发动作，系统才发出一次宽窄视角切换信号，从而增加用户的使用体验。
本实施例中，宽窄视角切换信号为复位切换信号，复位切换信号用于控制宽窄视角模式切换至初始视角模式，即发出宽窄视角切换信号时，控制显示装置切换至初始的视角模式，其中，初始视角模式可以根据用户喜好的视角模式进行设置。当然，在其他实施例中，宽窄视角切换信号为循坏切换信号，循坏切换信号用于控制宽窄视角模式进行循坏切换，即按照预先设置的排序在全宽视角模式(图9和图10)、左窄右宽模式(图11和图12)、左宽右窄模式(图13和图14)以及全窄视角模式(图15和图16)之间进行循坏切换。
图1是本发明中显示装置的结构示意图。图2是本发明中显示装置的电路结构示意图。图3是本发明中动作传感器及周边电路的结构示意图。图9是本发明中显示装置在第一宽窄视角模式的结构示意图。图10是本发明中显示装置在第一宽窄视角模式的平面结构示意图。图11是本发明中显示装置在第二宽窄视角模式的结构示意图。图12是本发明中显示装置在第二宽窄视角模式的平面结构示意图。图13是本发明中显示装置在第三宽窄视角模式的结构示意图。图14是本发明中显示装置在第三宽窄视角模式的平面结构示意图。图15是本发明中显示装置在第四宽窄视角模式的结构示意图。图16是本发明中显示装置在第四宽窄视角模式的平面结构示意图。
如图1至图3以及图9至图16所示，本实施例还提供一种宽窄视角可切换的显示装置，显示装置采用如上所述控制方法进行控制。
显示装置包括能够进行宽窄视角切换的显示面板100以及控制显示面板100的电路板300，显示面板100或/和电路板300上设有动作传感器200，动作传感器200用于获取用户的动作信息。具体地，动作传感器200将获取用户的动作信息传送给电路板300，电路板300对动作信息进行处理和分析，当动作信息与存储动作相匹配时，电路板300发出宽窄视角切换信号并控制宽窄视角模式的切换。
进一步地，电路板300上设有处理器(MCU)310，动作传感器200和显示面板100均与处理器310电性连接，处理器310根据动作信息控制显示面板100进行宽窄视角模式的切换。
本实施例中，动作传感器200为距离传感器，距离传感器包括红外线传感器和超声波传感器，以红外线传感器为例，红外线传感器具有红外线发射器和红外线接收器，红外线发射器用于发射红外线，红外线接收器用于接收物体反射回来的红外线，通过测量反射的红外线能量来检测物体或人的距离，例如侦测距离为3cm。当然，在其他实施例中，动作传感器200也可以为图像传感器，从而获取用户的手势信息或面部动作信息。
如图3所示，红外线传感器通过外围电路接通电源和处理器310，红外线传感器将接收的模拟信号转换为数字信号，并传输给处理器310进行处理和分析，外围电路简单，可以直接做在显示装置的玻璃基板上。
如图2所示，由于本实施例中的宽窄视角切换信号为复位切换信号，因此，显示装置还包括切换按键320，切换按键320用于控制宽窄视角模式进行循坏切换，即按照预先设置的排序在全宽视角模式(图9和图10)、左窄右宽模式(图11和图12)、左宽右窄模式(图13和图14)以及全窄视角模式(图15和图16)之间进行循坏切换。其中，切换按键320可以由function键复用，因此，在满足多种宽窄视角模式的切换以及复位的情况下，只需要复用一个function键，且不需要在键盘额外增加按键，采用现有的标准键盘即可。
进一步地，电路板300上还设有宽窄视角控制模块330，宽窄视角控制模块330用于控制显示面板100显示多种宽窄视角模式，例如全宽视角模式(图9和图10)、左窄右宽模式(图11和图12)、左宽右窄模式(图13和图14)以及全窄视角模式(图15和图16)。
宽窄视角控制模块330包括宽窄视角控制器331和宽窄视角驱动电路 332，处理器310的输出端与宽窄视角控制器331的输入端连接，宽窄视角控制器331的输出端与宽窄视角驱动电路332的输入端连接，宽窄视角驱动电路332的输出端与显示面板100连接。宽窄视角控制器331根据处理器310不同的处理结果输出不同的信号，宽窄视角驱动电路332根据宽窄视角控制器331输出的信号向显示面板100施加不同的宽窄视角驱动电压，从而使显示面板100显示不同的宽窄视角模式。
如图1所示，本实施例中，显示面板100包括显示区110和位于显示区110周边的非显示区120，动作传感器200设于非显示区120的玻璃基板上。将动作传感器200直接设于显示面板100上，可以提高显示面板的附加价值，降低后端客户的设计成本。动作传感器200为红外线传感器，红外线传感器的尺寸为2mm*1mm*0.35mm，显示面板100的玻璃基板厚度为0.3-0.5mm，从而可以将红外线传感器放置在0.4mm的玻璃基板上，且厚度不会超过玻璃基板；因为显示面板100还设有偏光片，甚至可以将红外线传感器放在0.3mm的玻璃上。由于红外线传感器设置与非显示区120的玻璃基板上，因此，还需要电子设备(电脑)屏幕边缘的壳体打孔，以露出红外线传感器。
在其他实施例中，如图4所示，动作传感器200也可设于电路板300上，从而减小动作传感器200与处理器310之间信号的传输距离，提高信号传输效率。同样的，还是需要电子设备(电脑)屏幕边缘的壳体打孔，以露出动作传感器200。
如图9至图16所示，显示面板100包括调光盒10和显示液晶盒20，调光盒10与显示液晶盒20层叠设置。本实施例中，调光盒10设于显示液晶盒20的下方，即调光盒10设于显示液晶盒20与背光模组40之间，调光盒10用于控制显示装置的视角，显示液晶盒20用于控制显示装置显示正常的画面。当然，调光盒10也可设于显示液晶盒20的上方，或者显示液晶盒20的上下两侧均设有调光盒10。
调光盒10包括第一基板11、与第一基板11相对设置的第二基板12以及设于第一基板11与第二基板12之间的第一液晶层13。优选地，第一液晶层13为正性液晶分子，即介电各向异性为正的液晶分子。在初始状态的时候，第一液晶层13呈平躺姿态，即第一液晶层13中的正性液晶分子平行于第一基板10和第二基板20进行配向，靠近第一基板10一侧的正性液晶分子与靠近第二基板20一侧的正性液晶分子的配向方向反向平行。当然，正性液晶分子在初始配向时可具有较小的预倾角(例如小于4.5°)，即正性液晶分子在初始时与第一基板10和第二基板20形成有较小的夹角，可在切换为窄视角时，加快正性液晶分子朝向竖直方向偏转。当然，在其他实施例中，第一液晶层13也可采用负性液晶分子，且第一液晶层13中的负性液晶分子垂直或近似垂直于第一基板10与第二基板20。
第一基板11上设有第一偏光片31，第二基板12上设有第二偏光片32，第一偏光片31的透光轴与第二偏光片32的透光轴相互垂直，第一偏光片31设于调光盒10和显示液晶盒20之间，第二偏光片32设于第二基板12远离第一液晶层13的一侧。第一基板11在朝向第一液晶层13的一侧设有视角控制电极111，第二基板12在朝向第一液晶层13的一侧设有与视角控制电极111配合的第一电极121和第二电极122。本实施例中，视角控制电极111为整面覆盖第一基板11的面状电极，第一电极121和第二电极122为整面覆盖在第二基板12上的块状电极。第一电极121和第二电极122分别控制不同区域的宽窄视角切换，例如，第一电极121用于控制显示面板100右半区域的宽窄视角切换，第二电极122用于控制显示面板100左半区域的宽窄视角切换。
显示液晶盒20包括彩膜基板21、与彩膜基板21相对设置的阵列基板22以及位于彩膜基板21与阵列基板22之间的第二液晶层23。优选地，第二液晶层23中采用正性液晶分子，即介电各向异性为正的液晶分子，在初始状态的时候，第二液晶层23中的正性液晶分子平行于彩膜基板21与阵列基板22进行配向，靠近彩膜基板21一侧的正性液晶分子与靠近阵列基板22一侧的正性液晶分子的配向方向平行或反向平行。在其他实施例中，阵列基板22与第一基板11可共用一个基本，以减少显示面板的盒厚。
显示液晶盒20远离调光盒10的一侧设有第三偏光片33，调光盒10和显示液晶盒20之间的偏光片的透光轴与第三偏光片33的透光轴相互垂直。本实施例中，第三偏光片33设于彩膜基板21上，第三偏光片33的透光轴与第一偏光片31的透光轴相互垂直。
彩膜基板21上设有呈阵列排布的色阻层212以及将色阻层212间隔开的黑矩阵211，色阻层212包括红(R)、绿(G)、蓝(B)三色的色阻材料，并对应形成红(R)、绿(G)、蓝(B)三色的子像素。
阵列基板22在朝向第二液晶层23的一侧上由多条扫描线和多条数据线相互绝缘交叉限定形成多个像素单元，每个像素单元内设有像素电极222和薄膜晶体管，像素电极222通过薄膜晶体管与邻近薄膜晶体管的数据线电性连接。其中，薄膜晶体管包括栅极、有源层、漏极以及源极，栅极与扫描线位于同一层并电性连接，栅极与有源层通过绝缘层隔离开，源极与数据线电性连接，漏极与像素电极222通过接触孔电性连接。
如图9所示，本实施例中，阵列基板22朝向第二液晶层23的一侧还设有公共电极221，公共电极221与像素电极222位于不同层并通过绝缘层绝缘隔离。公共电极221可位于像素电极222上方或下方(图9中所示为公共电极221位于像素电极222的下方)。优选地，公共电极221为整面设置的面状电极，像素电极222为在每个像素单元内整块设置的块状电极或者具有多个电极条的狭缝电极，以形成边缘场开关模式(Fringe Field Switching，FFS)。当然，在其他实施例中，像素电极222与公共电极221可位于同一层，但是两者相互绝缘隔离开，像素电极222和公共电极221各自均可包括多个电极条，像素电极222的电极条和公共电极221的电极条相互交替排列，以形成面内切换模式(In～Plane Switching，IPS)；或者，在其他实施例中，阵列基板22在朝向第二液晶层23的一侧设有像素电极222，彩膜基板21在朝向第二液晶层23的一侧设有公共电极221，以形成TN模式或VA模式，至于TN模式和VA模式的其他介绍请参考现有技术，这里不再赘述。
其中，第一基板11、第二基板12、彩膜基板21以及阵列基板22可以用玻璃、丙烯酸和聚碳酸酯等材料制成。视角控制电极111、第一电极121和第二电极122、公共电极221以及像素电极222的材料可以为氧化铟锡(ITO)或氧化铟锌(IZO)等。
进一步地，在调光盒10远离显示液晶盒20的一侧设有背光模组40，优选地，背光模组40采用准直背光(CBL，collimated backlight)模式，可对光线起到收光的作用，保证显示效果。
背光模组40包括背光源41和防窥层43，防窥层43用于缩小光线射出角度的范围。背光源41和防窥层43之间还设有增亮膜42，增亮膜42增加背光模组40的亮度。其中，防窥层43相当一个微型的百叶窗结构，可以阻挡入射角度较大的光线，使入射角度较小的光线穿过，使穿过防窥层43的光线的角度范围变小。防窥层43包括多个平行设置的多个光阻墙和位于相邻两个光阻墙之间的透光孔，光阻墙的两侧设有吸光材料。背光模组41可以侧入式背光模组，也可以是准直式背光模组。
如图9和图10所示，在全宽视角模式时，向公共电极221上施加直流公共电压Vcom，向视角控制电极111施加第一电压，第一电极121和第二电极122均施加第二电压。第一电压和第二电压均与直流公共电压相同，第一基板11与第二基板12之间不形成垂直电场或形成较小的垂直电场(例如小于0.5V)。第一液晶层13的正性液晶分子在垂直方向上基本不发生偏转并呈平躺姿态，呈现全宽视角显示。而像素电极222施加对应的灰阶电压，像素电极222与公共电极221之间形成压差并产生水平电场(图9中E1)，使正性液晶分子在水平方向上朝着平行于水平电场的方向偏转，灰阶电压包括0～255级灰阶电压，像素电极222施加不同的灰阶电压时，像素单元呈现不同的亮度，从而显示不同的画面，以实现显示装置在全宽视角下的正常显示。
如图11和图12所示，在左窄右宽视角模式时，向公共电极221上施加直流公共电压Vcom，向视角控制电极111施加第一电压，第一电极121施加第二电压，第二电极122施加第三电压。第一电压和第二电压均与直流公共电压相同，第三电压为以直流公共电压上下波动的交流电压。在显示面板100的右半区域，第一基板11与第二基板12之间不形成垂直电场或形成较小的垂直电场(例如小于0.5V)，第一液晶层13的正性液晶分子在垂直方向上基本不发生偏转并呈平躺姿态，呈现宽视角显示；而在显示面板100的左半区域，第一基板11与第二基板12之间形成较大的垂直电场(图11中E2)，第一液晶层13的正性液晶分子在垂直方向上发生较大偏转并呈倾斜姿态，使显示面板100在斜视方向上亮度降低且单向视角变窄，实现窄视角显示，显示面板100最终实现左窄右宽视角显示。而像素电极222施加对应的灰阶电压，像素电极222与公共电极221之间形成压差并产生水平电场(图11中E1)，使正性液晶分子在水平方向上朝着平行于水平电场的方向偏转，灰阶电压包括0～255级灰阶电压，像素电极222施加不同的灰阶电压时，像素单元呈现不同的亮度，从而显示不同的画面，以实现显示装置在左窄右宽视角下的正常显示。
如图13和图14所示，在左宽右窄视角模式时，向公共电极221上施加直流公共电压Vcom，向视角控制电极111施加第一电压，第一电极121施加第三电压，第二电极122施加第二电压。第一电压和第二电压均与直流公共电压相同，第三电压为以直流公共电压上下波动的交流电压。在显示面板100的右半区域，第一基板11与第二基板12之间形成较大的垂直电场(图13中E3)，第一液晶层13的正性液晶分子在垂直方向上发生较大偏转并呈倾斜姿态，使显示面板100在斜视方向上亮度降低且单向视角变窄，实现窄视角显示；而在显示面板100的左半区域，第一基板11与第二基板12之间不形成垂直电场或形成较小的垂直电场(例如小于0.5V)，第一液晶层13的正性液晶分子在垂直方向上基本不发生偏转并呈平躺姿态，呈现宽视角显示显示面板100最终实现左宽右窄视角显示。而像素电极222施加对应的灰阶电压，像素电极222与公共电极221之间形成压差并产生水平电场(图13中E1)，使正性液晶分子在水平方向上朝着平行于水平电场的方向偏转，灰阶电压包括0～255级灰阶电压，像素电极222施加不同的灰阶电压时，像素单元呈现不同的亮度，从而显示不同的画面，以实现显示装置在左宽右窄视角下的正常显示。
如图15和图16所示，在全窄视角模式时，向公共电极221上施加直流公共电压Vcom，向视角控制电极111施加第一电压，第一电极121和第二电极122均施加第三电压。第一电压与直流公共电压相同，第三电压为以直流公共电压上下波动的交流电压。第一基板11与第二基板12之间形成较大的垂直电场(图15中E2和E3)。第一液晶层13的正性液晶分子在垂直方向上发生较大偏转并呈倾斜姿态，使显示面板100在斜视方向上亮度降低且单向视角变窄，实现全窄视角显示。而像素电极222施加对应的灰阶电压，像素电极222与公共电极221之间形成压差并产生水平电场(图15中E1)，使正性液晶分子在水平方向上朝着平行于水平电场的方向偏转，灰阶电压包括0～255级灰阶电压，像素电极222施加不同的灰阶电压时，像素单元呈现不同的亮度，从而显示不同的画面，以实现显示装置在全窄视角下的正常显示。
其中，视角控制电极111、第一电极121以及第二电极122上的电压信号，是根据处理器310不同的分析结果进行控制。
[实施例二]
图7是本发明实施例二中控制方法的流程示意图。如图7所示，本发明实施例二提供的宽窄视角可切换的显示装置及控制方法与实施例一(图1至图6以及图9至图16)中的宽窄视角可切换的显示装置及控制方法基本相同，不同之处在于，在本实施例中，动作信息为手势信息，存储动作为手势动作，即本实施例中，通过监测用户的手势信息，从而根据手势信息发出宽窄视角切换信号并控制宽窄视角模式的切换。该控制方法包括：
步骤S12：获取用户的手势信息。
步骤S22：将手势信息与手势动作进行比对。
步骤S31：当手势信息与手势动作相匹配时，发出宽窄视角切换信号并控制宽窄视角模式的切换。例如，当用户需要控制宽窄视角模式的切换时，用户可以用手做出“OK”手势、五指张开手势、握拳手势以及竖大拇指等，然后将用户做出的手势信息与存储的手势动作进行比对，系统根据比对的结果，发出宽窄视角切换信号，从而切换宽窄视角模式。例如，系统识别出用户做出“OK”手势，则发出宽窄视角切换信号以切换至下一种宽窄视角模式；如果系统识别出用户做出竖大拇指，则发出宽窄视角切换信号以切换至上一种宽窄视角模式；如果系统识别出用户做出五指张开手势，则发出宽窄视角切换信号以切换至初始的视角模式；如果系统识别出用户做出握拳手势，则发出宽窄视角切换信号以切换至最后的视角模式。
当然，系统也可以根据比对的结果，发出与手势动作对应的宽窄视角切换信号，例如，系统识别出用户做出“OK”手势，则发出全宽视角切换信号，并切换至全宽视角模式；如果系统识别出用户做出五指张开手势，则发出全窄视角切换信号，并切换至全窄视角模式；如果系统识别出用户做出竖大拇指，则发出左窄右宽视角切换信号，并切换至左窄右宽模式；如果系统识别出用户做出握拳手势，则发出左宽右窄视角切换信号，并切换至左宽右窄模式。因此，用户可以根据自身喜好，为不同的手势信息设定不同的宽窄视角模式，从而可以快速切换至对应的宽窄视角模式。
在其他实施例中，也可通过设置其他手势来控制宽窄视角的效果及切换。例如，向上手势，则控制上半部防窥；向下手势，则控制下半部防窥；向左手势，则控制左半部防窥；向右手势，则控制右半部防窥；向前手势，则控制防窥区域放大；向后手势，则控制防窥区域缩小；做出顺时针画圈手势，则调高亮度，增加宽视角效果；做出逆时针画圈手势，则降低亮度，增加窄视角效果；做出挥动手势，则控制视角复位，切换至初始的视角模式。
步骤S32：当手势信息与手势动作不相匹配时，系统不会发出宽窄视角切换信号并保持现有宽窄视角模式。
进一步地，手势信息与手势动作相匹配的方法包括：手势信息与手势动作的相似度大于90%。即为了防止系统错误判断，经过对比分析后，只有手势信息与手势动作的相似度大于90%时，系统才发出宽窄视角切换信号。
进一步地，该控制方法还包括：
监测手势信息的第二持续时间。
当第二持续时间大于第二预设时间时，发出宽窄视角切换信号并控制宽窄视角模式的切换，从而可以防止发生误触的情况。例如，用户可能无意间做了一个与存储的手势动作相似的手势，这也会导致系统发出宽窄视角切换信号。因此，为了防止发生误触的情况，需要用户做出手势并保持一定时间(例如0.5S)后，系统才能发出宽窄视角切换信号并控制宽窄视角模式的切换。具体地第二预设时间可以根据实际的情况进行设定，以给用户更好的使用体验。
本实施例还提供一种宽窄视角可切换的显示装置，显示装置采用如上所述控制方法进行控制。
显示装置包括能够进行宽窄视角切换的显示面板100以及控制显示面板100的电路板300，显示面板100或/和电路板300上设有动作传感器200，动作传感器200用于获取用户的动作信息。具体地，动作传感器200将获取用户的动作信息传送给电路板300，电路板300对动作信息进行处理和分析，当动作信息与存储动作相匹配时，电路板300发出宽窄视角切换信号并控制宽窄视角模式的切换。
本实施例中的宽窄视角可切换的显示装置与实施例一(图1至图4以及图9至图16)中的不同之处在于，在本实施例中，动作传感器200为图像传感器，因为，本实施例中需要获取用户的手势信息，通过图像传感器可以采集用户的图像，从而分析出用户做出的手势。当然，在其他实施例中，动作传感器200也可采用特殊的红外传感器，例如具有红外手势识别的传感器。
本实施例中，显示装置无需设置切换按键320，因为用户可以做出多种多样的手势，从而根据多种手势信息就足以满足不同宽窄视角模式切换的需求。
本领域的技术人员应当理解的是，本实施例的其余结构以及工作原理均与实施例一相同，这里不再赘述。
[实施例三]
图8是本发明实施例三中控制方法的流程示意图。如图8所示，本发明实施例三提供的宽窄视角可切换的显示装置及控制方法与实施例一(图1至图6以及图9至图16)中的宽窄视角可切换的显示装置及控制方法基本相同，不同之处在于，在本实施例中，动作信息为面部动作信息，存储动作为面部动作，即本实施例中，通过监测用户的面部动作信息，从而根据面部动作信息发出宽窄视角切换信号并控制宽窄视角模式的切换。该控制方法包括：
步骤S13：获取用户的面部动作信息。
步骤S23：将面部动作信息与面部动作进行比对。
步骤S31：当面部动作信息与面部动作相匹配时，发出宽窄视角切换信号并控制宽窄视角模式的切换。例如，当用户需要控制宽窄视角模式的切换时，用户可以做出睁左眼闭右眼、睁右眼闭左眼、微笑、大笑等面部动作，然后将用户做出的面部动作信息与存储的面部动作进行比对，系统根据比对的结果，发出宽窄视角切换信号，从而切换宽窄视角模式。例如，系统识别出用户做出睁左眼闭右眼的面部动作，则发出宽窄视角切换信号以切换至下一种宽窄视角模式；如果系统识别出用户做出睁右眼闭左眼的面部动作，则发出宽窄视角切换信号以切换至上一种宽窄视角模式；如果系统识别出用户做出微笑的面部动作，则发出宽窄视角切换信号以切换至初始的视角模式；如果系统识别出大笑的面部动作，则发出宽窄视角切换信号以切换至最后的视角模式。
当然，系统也可以根据比对的结果，发出与手势动作对应的宽窄视角切换信号，例如，系统识别出用户做出睁左眼闭右眼的面部动作，则发出左宽右窄视角切换信号，并切换至左宽右窄视角模式；如果系统识别出用户做出睁右眼闭左眼的面部动作，则发出左窄右宽视角切换信号，并切换至左窄右宽视角模式；如果系统识别出用户做出微笑的面部动作，则发出全宽视角切换信号，并切换至全宽视角模式；如果系统识别出大笑的面部动作，则发出全窄视角切换信号，并切换至全窄视角模式。因此，用户可以根据自身喜好，为不同的面部动作设定不同的宽窄视角模式，从而可以快速切换至对应的宽窄视角模式。
步骤S32：当面部动作信息与存储的面部动作不相匹配时，系统不会发出宽窄视角切换信号并保持现有宽窄视角模式。
进一步地，面部动作信息与面部动作相匹配的方法包括：面部动作信息与面部动作的相似度大于90%。即为了防止系统错误判断，经过对比分析后，只有面部动作信息与面部动作的相似度大于90%时，系统才发出宽窄视角切换信号。
进一步地，该控制方法还包括：
监测面部动作信息的第三持续时间；
当第三持续时间大于第三预设时间时，发出宽窄视角切换信号并控制宽窄视角模式的切换，从而可以防止发生误触的情况。例如，用户可能无意间做了一个与存储的面部动作相似的面部动作信息，这也会导致系统发出宽窄视角切换信号。因此，为了防止发生误触的情况，需要用户做出面部动作信息并保持一定时间(例如0.5S)后，系统才能发出宽窄视角切换信号并控制宽窄视角模式的切换。具体地第三预设时间可以根据实际的情况进行设定，以给用户更好的使用体验。
本实施例还提供一种宽窄视角可切换的显示装置，显示装置采用如上所述控制方法进行控制。
显示装置包括能够进行宽窄视角切换的显示面板100以及控制显示面板100的电路板300，显示面板100或/和电路板300上设有动作传感器200，动作传感器200用于获取用户的动作信息。具体地，动作传感器200将获取用户的动作信息传送给电路板300，电路板300对动作信息进行处理和分析，当动作信息与存储动作相匹配时，电路板300发出宽窄视角切换信号并控制宽窄视角模式的切换。
本实施例中的宽窄视角可切换的显示装置与实施例一((图1至图4以及图9至图16))中的不同之处在于，在本实施例中，动作传感器200为图像传感器，因为，本实施例中需要获取用户的面部动作信息，通过图像传感器可以采集用户的图像，从而分析出用户做出的面部动作。
本实施例中，显示装置无需设置切换按键320，因为用户可以做出多种多样的面部动作，从而根据多种面部动作信息就足以满足不同宽窄视角模式切换的需求。
本领域的技术人员应当理解的是，本实施例的其余结构以及工作原理均与实施例一相同，这里不再赘述。
在本文中，所涉及的上、下、左、右、前、后等方位词是以附图中的结构位于图中的位置以及结构相互之间的位置来定义的，只是为了表达技术方案的清楚及方便。应当理解，所述方位词的使用不应限制本申请请求保护的范围。还应当理解，本文中使用的术语“第一”和“第二”等，仅用于名称上的区分，并不用于限制数量和顺序。
以上所述，仅是本发明的较佳实施例而已，并非对本发明做任何形式上的限定，虽然本发明已以较佳实施例揭露如上，然而并非用以限定本发明，任何熟悉本专业的技术人员，在不脱离本发明技术方案范围内，当可利用上述揭示的技术内容作出些许更动或修饰，为等同变化的等效实施例，但凡是未脱离本发明技术方案内容，依据本发明的技术实质对以上实施例所作的任何简单修改、等同变化与修饰，均仍属于本发明技术方案的保护范围之内。
 工业实用性
通过获取用户的动作信息并与存储动作进行比对，然后根据比对结果发出宽窄视角切换信号并控制宽窄视角模式的切换，因此可以直接设置传感器来获取用户的动作信息，例如红外线传感器、超声波传感器以及图像传感器等，从而无需在键盘上额外设置视角切换按键或是重新修改系统复用function键来控制宽窄视角模式的切换，以实现简化键盘的设计，降低键盘的制作成本。

Claims (15)

  1. 一种宽窄视角可切换的控制方法，其特征在于，所述控制方法包括：
    获取用户的动作信息；
    将所述动作信息与存储动作进行比对；
    当所述动作信息与所述存储动作相匹配时，发出宽窄视角切换信号并控制宽窄视角模式的切换。
  2. 根据权利要求1所述的宽窄视角可切换的控制方法，其特征在于，所述动作信息为距离信息，所述存储动作为存储距离，所述控制方法包括：
    监测物体距离显示面板的距离信息；
    将所述距离信息与存储距离进行比对；
    当所述距离信息小于所述存储距离时，发出宽窄视角切换信号并控制宽窄视角模式的切换。
  3. 根据权利要求2所述的宽窄视角可切换的控制方法，其特征在于，所述控制方法还包括：
    监测所述距离信息小于所述存储距离的第一持续时间；
    当所述第一持续时间大于第一预设时间时，发出宽窄视角切换信号并控制宽窄视角模式的切换。
  4. 根据权利要求2所述的宽窄视角可切换的控制方法，其特征在于，所述控制方法包括：
    当监测到所述距离信息小于所述存储距离之后，又监测到所述距离信息大于或等于所述存储距离时，记为一次触发动作并发出一次宽窄视角切换信号。
  5. 根据权利要求1所述的宽窄视角可切换的控制方法，其特征在于，所述动作信息为手势信息，所述存储动作为手势动作，所述控制方法包括：
    获取用户的手势信息；
    将所述手势信息与手势动作进行比对；
    当所述手势信息与所述手势动作相匹配时，发出宽窄视角切换信号并控制宽窄视角模式的切换。
  6. 根据权利要求5所述的宽窄视角可切换的控制方法，其特征在于，所述手势信息与所述手势动作相匹配的方法包括：
    所述手势信息与所述手势动作的相似度大于90%。
  7. 根据权利要求5所述的宽窄视角可切换的控制方法，其特征在于，所述控制方法还包括：
    监测所述手势信息的第二持续时间；
    当所述第二持续时间大于第二预设时间时，发出宽窄视角切换信号并控制宽窄视角模式的切换。
  8. 根据权利要求1所述的宽窄视角可切换的控制方法，其特征在于，所述动作信息为面部动作信息，所述存储动作为面部动作，所述控制方法包括：
    获取用户的面部动作信息；
    将所述面部动作信息与面部动作进行比对；
    当所述面部动作信息与所述面部动作相匹配时，发出宽窄视角切换信号并控制宽窄视角模式的切换。
  9. 根据权利要求8所述的宽窄视角可切换的控制方法，其特征在于，所述控制方法还包括：
    监测所述面部动作信息的第三持续时间；
    当所述第三持续时间大于第三预设时间时，发出宽窄视角切换信号并控制宽窄视角模式的切换。
  10. 根据权利要求1-9任一项所述的宽窄视角可切换的控制方法，其特征在于，所述宽窄视角切换信号为循坏切换信号，所述循坏切换信号用于控制所述宽窄视角模式进行循坏切换。
  11. 根据权利要求1-9任一项所述的宽窄视角可切换的控制方法，其特征在于，所述宽窄视角切换信号为复位切换信号，所述复位切换信号用于控制所述宽窄视角模式切换至初始视角模式。
  12. 一种宽窄视角可切换的显示装置，其特征在于，所述显示装置采用如权利要求书1-11任一项所述的控制方法进行控制，所述显示装置包括能够进行宽窄视角切换的显示面板(100)以及控制所述显示面板(100)的电路板(300)，所述显示面板(100)或/和所述电路板(300)上设有动作传感器(200)，所述动作传感器(200)用于获取用户的动作信息。
  13. 根据权利要求12所述的宽窄视角可切换的显示装置，其特征在于，所述显示面板(100)包括显示区(110)和位于所述显示区(110)周边的非显示区(120)，所述动作传感器(200)设于所述非显示区(120)的玻璃基板上。
  14. 根据权利要求12所述的宽窄视角可切换的显示装置，其特征在于，所述电路板(300)上设有处理器(310)，所述动作传感器(200)和所述显示面板(100)均与所述处理器(310)电性连接，所述处理器(310)根据所述动作信息控制所述显示面板(100)进行宽窄视角模式的切换。
  15. 根据权利要求12所述的宽窄视角可切换的显示装置，其特征在于，所述动作传感器(200)包括红外线传感器、超声波传感器以及图像传感器。
PCT/CN2022/114965 2022-08-25 2022-08-25 宽窄视角可切换的显示装置及控制方法 WO2024040543A1 (zh)

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CN105453106A (zh) * 2013-03-15 2016-03-30 英特尔公司 具有动态配置的显示器隐私
CN106409209A (zh) * 2016-11-24 2017-02-15 北京小米移动软件有限公司 显示方法、显示装置及显示设备
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