WO2013152701A1 - 双屏显示装置、双屏显示方法和电子设备 - Google Patents

双屏显示装置、双屏显示方法和电子设备 Download PDF

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Publication number
WO2013152701A1
WO2013152701A1 PCT/CN2013/073903 CN2013073903W WO2013152701A1 WO 2013152701 A1 WO2013152701 A1 WO 2013152701A1 CN 2013073903 W CN2013073903 W CN 2013073903W WO 2013152701 A1 WO2013152701 A1 WO 2013152701A1
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WO
WIPO (PCT)
Prior art keywords
unit
light source
light
display
polarization
Prior art date
Application number
PCT/CN2013/073903
Other languages
English (en)
French (fr)
Inventor
许芳
尚可
鞠娜
张振华
Original Assignee
联想(北京)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 联想(北京)有限公司 filed Critical 联想(北京)有限公司
Priority to US14/348,332 priority Critical patent/US9830122B2/en
Priority to DE112013000371.6T priority patent/DE112013000371B4/de
Publication of WO2013152701A1 publication Critical patent/WO2013152701A1/zh

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Classifications

    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
    • G06F3/00Input 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
    • G06F3/14Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/1423Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display
    • G06F3/1431Digital output to display device ; Cooperation and interconnection of the display device with other functional units controlling a plurality of local displays, e.g. CRT and flat panel display using a single graphics controller
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/133602Direct backlight
    • G02F1/133606Direct backlight including a specially adapted diffusing, scattering or light controlling members
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • G02F1/13362Illuminating devices providing polarized light, e.g. by converting a polarisation component into another one
    • GPHYSICS
    • G06COMPUTING; CALCULATING OR COUNTING
    • G06FELECTRIC DIGITAL DATA PROCESSING
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    • G06F3/14Digital output to display device ; Cooperation and interconnection of the display device with other functional units
    • G06F3/147Digital output to display device ; Cooperation and interconnection of the display device with other functional units using display panels
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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 by control of light from an independent source
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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 by control of light from an independent source
    • G09G3/3406Control of illumination source
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20Control 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
    • G09G3/34Control 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 by control of light from an independent source
    • G09G3/36Control 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 by control of light from an independent source using liquid crystals
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G5/00Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators
    • G09G5/14Display of multiple viewports
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/133342Constructional arrangements; Manufacturing methods for double-sided displays
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336Illuminating devices
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F2201/00Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/58Arrangements comprising a monitoring photodetector
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F2203/00Function characteristic
    • G02F2203/01Function characteristic transmissive
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00Aspects of the constitution of display devices
    • G09G2300/02Composition of display devices
    • G09G2300/023Display panel composed of stacked panels
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00Control of display operating conditions
    • G09G2320/06Adjustment of display parameters
    • G09G2320/0626Adjustment of display parameters for control of overall brightness
    • GPHYSICS
    • G09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2360/00Aspects of the architecture of display systems
    • G09G2360/04Display device controller operating with a plurality of display units

Definitions

  • Dual screen display device dual screen display method and electronic device
  • the present invention relates to the field of LCD display, and more particularly, to a dual screen display device, a dual screen display method, and an electronic device. Background technique
  • a second display screen is usually provided to increase the function of the electronic product and provide more convenient operation for the user.
  • flip-type mobile phones typically have internal and external screens, with internal screens typically used to display video, gaming applications, and text editing applications, while external screens are commonly used to display information related to communication processing, such as caller ID numbers, text message topics, and the like.
  • mobile Internet devices such as tablet PCs are gradually adopting the trend of dual-screen display design to obtain a better user experience.
  • the present invention provides a dual screen display device, a dual screen display method, and an electronic device.
  • a dual screen display device including: a first display unit and a second display unit, a light receiving surface of the first display unit and a light receiving surface of the second display unit Arranging opposite to each other; a backlight module unit disposed between the light receiving surface of the first display unit and the light receiving surface of the second display unit; and a light source unit configured to emit illumination light to the backlight module unit; a first polarizing filter unit and a second polarizing filter unit, respectively disposed on a light receiving surface of the first display unit and a light receiving surface of the second display unit, and the first polarizing filter unit And a polarization direction of the second polarization filter unit, wherein the illumination light Deviating to the first display unit and the second display unit by the backlight module unit, and illuminating the first display unit and the second after passing through the first polarization filter unit and the second polarization filter unit On the display unit.
  • a dual screen display device wherein the light source unit includes a first light source unit and a second light source unit, respectively disposed on both sides of the backlight module unit, and respectively for emitting the first illumination Light and second illumination.
  • a dual screen display device further includes a first polarizing unit and a second polarizing unit, respectively disposed between the first light source unit and the backlight module unit and the Between the two light source units and the backlight module unit, respectively for receiving first illumination light and second illumination light and generating first polarization illumination light and second polarization illumination light, wherein the first polarization filter unit and The polarization direction of the first polarizing unit is the same, and the polarization directions of the second polarizing filter unit and the second polarizing unit are the same.
  • a dual screen display device further includes a light source control unit for controlling the first light source unit and the second light source unit to respectively emit light or simultaneously emit light as needed.
  • a dual screen display device wherein the first polarizing unit and the second polarizing unit are polarizing films or polarizing glasses.
  • a dual screen display device wherein the backlight module unit includes a light guide plate and a diffusion sheet.
  • a dual screen display device wherein the backlight module unit further includes a brightness enhancement sheet.
  • a dual screen display method for use in an electronic device, the electronic device including a display control unit and a dual display device, the dual display device including a first display unit And a second display unit, the light receiving surface of the first display unit and the light receiving surface of the second display unit are arranged opposite to each other; a backlight module unit disposed on the light receiving surface of the first display unit Between the light receiving surfaces of the second display unit; a light source unit for emitting illumination light to the backlight module unit; a light source control unit for controlling the light source unit to emit light; and a first polarization filter unit and a second polarization Filtering units respectively disposed on a light receiving surface of the first display unit and a light receiving surface of the second display unit, and the first polarizing filter unit and the second polarizing filter unit
  • the polarization directions are orthogonal, wherein the illumination light is deflected to the first display unit and the second display unit by the backlight module unit, and passes through the first polarization Ir
  • the light source unit includes a first light source unit and a second light source unit, respectively disposed on two sides of the backlight module unit, and respectively used to emit the first Illumination light and second illumination light.
  • a dual screen display method wherein the dual screen display device further includes a first polarizing unit and a second polarizing unit, respectively disposed at the first light source unit and the backlight module Between the group units and between the second light source unit and the backlight module unit, respectively for receiving the first illumination light and the second illumination light and generating the first polarization illumination light and the second polarization illumination light, wherein
  • the polarization directions of the first polarization filter unit and the first polarization unit are the same, and the polarization directions of the second polarization filter unit and the second polarization unit are the same.
  • a dual screen display method wherein the light source unit emits light based on the received light source control signal includes: the first light source unit and the second light source unit are controlled based on the received light source The signals illuminate separately or simultaneously.
  • an electronic device including: a dual screen display device; and a display control unit for controlling the dual screen display device, wherein the dual screen display device includes a first display unit And a second display unit, the light receiving surface of the first display unit and the light receiving surface of the second display unit are arranged opposite to each other; a backlight module unit disposed on the light receiving surface of the first display unit Between the light receiving surfaces of the second display unit; a light source unit for emitting illumination light to the backlight module unit; and a first polarization filter unit and a second polarization filter unit, respectively disposed on the first display unit a light receiving surface and a light receiving surface of the second display unit, and a polarization direction of the first polarization filter unit and the second polarization filter unit is orthogonal, wherein the illumination light passes through The backlight module unit is deflected toward the first display unit and the second display unit, and is irradiated by the first polarizing filter unit and the second polarizing filter unit
  • the light source unit includes a first light source unit and a second light source unit, which are respectively disposed on both sides of the backlight module unit, and are respectively configured to emit the first illumination light And second illumination light.
  • an electronic device further includes a first polarizing unit and a second polarizing unit, respectively disposed between the first light source unit and the backlight module unit and the second Between the light source unit and the backlight module unit, respectively, for receiving the first illumination light and the second illumination light and generating the first polarization illumination light and the second polarization illumination light, wherein the first polarization filter unit and the The polarization direction of the first polarizing unit is the same, and the polarization directions of the second polarizing filter unit and the second polarizing unit are the same.
  • an electronic device further includes a light source control unit for controlling the first light source unit and the second light source unit to respectively emit light or simultaneously emit light as needed.
  • the dual screen display device the dual screen display method thereof, and the electronic device using the dual screen display device, a thinner and lighter dual screen display device can be realized, and an appropriate dual screen display can be performed according to display requirements.
  • FIG. 1 is a block diagram illustrating an electronic device to which a dual screen display device according to an embodiment of the present invention is applied;
  • FIG. 2 is a flowchart illustrating a dual screen display method according to an embodiment of the present invention
  • FIG. 3 is a schematic view showing a display state of a dual screen display device according to an embodiment of the present invention.
  • Fig. 4 is a schematic view showing another display state of the dual screen display device according to an embodiment of the present invention. detailed description
  • the electronic device is preferably, for example, a smart phone, a personal digital assistant, a tablet or the like.
  • an electronic device 1 is a block diagram illustrating an electronic device to which a dual screen display device according to an embodiment of the present invention is applied.
  • an electronic device 1 according to an embodiment of the present invention includes a dual screen display device 10 and a display control unit 20. It is to be noted that only the above components are shown in Fig. 1 for the purpose of the description. Those skilled in the art will readily appreciate that electronic device 1 in accordance with embodiments of the present invention may also include other components, such as a central processing unit, an input output unit, a communication unit, and the like. The specific configuration of the dual screen display device 10 in the electronic device 1 will be described in detail below.
  • the dual screen display device 10 includes a first display unit 101 and a second display unit 102.
  • the first display unit 101 and the second display unit 102 may be LCD panels.
  • the light receiving surface of the first display unit 101 and the light receiving surface of the second display unit 102 are arranged opposite to each other.
  • the dual display device 10 includes a backlight module unit 107. Different from the two display units in the prior art dual display device having respective backlight module units, the first display unit 101 and the second display unit in the dual screen display device 10 according to the embodiment of the present invention 102 will share the backlight module unit 107.
  • a backlight module unit 107 is disposed between a light receiving surface of the first display unit 101 and a light receiving surface of the second display unit 102.
  • the backlight module unit 107 includes a light guide plate and a diffusion sheet.
  • the backlight module unit 107 further includes a brightness enhancement sheet. Since the backlight module unit 107 is shared by the first display unit 101 and the second display unit 102, the thickness and weight of the dual screen display device 10 will be greatly reduced as compared with the prior art.
  • the dual screen display device 10 includes a light source unit that supplies illumination light to the first display unit 101 and the second display unit 102.
  • the light source unit includes a first light source unit 103 and a second light source unit 104 disposed on two sides of the backlight module unit 107 for respectively emitting the first illumination. Light and second illumination.
  • the dual screen display device 10 may have only a single light source, and the illumination light emitted from a single light source is split by a spectroscopic component such as a backlight module unit.
  • the first light source unit 103 and the second light source unit 104 are LED lamps.
  • the dual screen display device 10 further includes a first polarization filter unit 108 and a second polarization filter unit 109.
  • the first polarizing filter unit 108 and the second polarizing filter unit 109 are respectively disposed on a light receiving surface of the first display unit 101 and a light receiving surface of the second display unit 102, and the first The polarization directions of one polarization filter unit 108 and the second polarization filter unit 109 are orthogonal. That is, the illumination light is deflected by the backlight module unit 107 to the first display unit 101 and the second display unit 102, and passes through the first polarization filter unit 108 and the second polarization filter unit. 109 is then irradiated on the first display unit 101 and the second display unit 102.
  • the dual screen display device 10 further includes a first polarizing unit 105 and a second polarizing unit 106, respectively disposed between the first light source unit 103 and the backlight module unit 107 and between the second light source unit 104 and the backlight module unit 107, respectively for receiving first illumination light and The second illumination light and the first polarization illumination light and the second polarization illumination light are generated.
  • the polarization directions of the first polarization filter unit 108 and the first polarization unit 105 are the same, and the polarization directions of the second polarization filter unit 109 and the second polarization unit 106 are the same.
  • the first polarizing unit 105 and the second polarizing unit 106 are polarizing films or polarized glasses.
  • the dual-screen display device 10 further includes a light source control unit 110 for controlling the first light source unit 103 and the second light source unit 104 to respectively emit light or simultaneously emit light as needed.
  • the display control unit 20 in the electronic device 1 generates and transmits a display control signal to the light source in the dual screen display device 10 according to the display needs of the electronic device 1.
  • Control unit 110 the display control unit 20 in the electronic device 1 according to the embodiment of the present invention generates and transmits a display control signal to the light source in the dual screen display device 10 according to the display needs of the electronic device 1.
  • the dual screen display method according to an embodiment of the present invention includes:
  • step S201 the display control unit 20 transmits a display control signal to the dual display device 10 in accordance with the display needs of the electronic device 1. That is, the display control unit 20 performs a single screen display according to one of the first display unit 101 or the second display unit 102, or the first display unit 101 and the second, according to what kind of display the electronic device 1 needs to perform. Both of the display units 102 simultaneously perform dual screen display, generating and transmitting corresponding display control signals to the light source control unit 110 of the dual display device 10. Thereafter, the processing proceeds to step S202.
  • step S202 the light source control unit 110 in the dual screen display device 10 generates a light source control signal based on the received display control signal, and transmits the light source control signal to the light source unit. That is, if the display control signal indicates that the electronic device 1 desires the first display unit 101 to perform display and the second display unit 102 does not perform display, the light source control unit 110 generates a corresponding light source. a control signal, the light source control signal indicating that the first light source unit 103 corresponding to the first display unit 101 emits light, and the second light source unit 104 corresponding to the second display unit 102 does not emit light.
  • the display control signal indicates that the electronic device 1 desires the first display unit 101 and the second display unit 102
  • the light source control unit 110 When the display is performed at the same time, the light source control unit 110 generates a corresponding light source control signal, the light source control signal indicating the first light source unit 103 corresponding to the first display unit 101 and the second display unit 102
  • the corresponding second light source unit 104 emits light at the same time. Thereafter, the processing proceeds to step S203.
  • step S203 the first light source unit 103 and the second light source unit 104 emit light based on the received light source control signal. Thereby, the first display unit 101 and the second display unit 102 corresponding thereto perform display processing.
  • Fig. 3 is a schematic view showing a display state of a dual screen display device according to an embodiment of the present invention. Specifically, Fig. 3 shows a state in which only a single display unit performs display in the dual screen display device (in the embodiment shown in Fig. 3, the first display unit 101 performs display alone);
  • the light source control unit 110 when the display control unit 20 of the electronic device 1 instructs the first display unit 101 to perform display alone, the light source control unit 110 generates a corresponding light source control signal. That is, the light source control unit 110 transmits a lighting signal to the first light source unit 103, and transmits a non-lighting signal to the second light source unit 104.
  • the first light source unit 103 In response to the received light source control signal, the first light source unit 103 emits light, and the second light source unit 104 does not emit light.
  • the illumination light emitted by the first light source unit 103 is first converted by the first polarizing unit 105 into the polarized light P1 polarized in the first direction.
  • the polarized light P1 passes through the backlight module unit 107 and is simultaneously directed to the first display unit 101 and the second display unit 102.
  • the polarized light P1 Before reaching the first display unit 101, the polarized light P1 first reaches the first polarizing filter unit 108 disposed before the first display unit 101, due to the first polarizing filter unit 108 and the The polarizing directions of the first biasing unit 105 are the same, for example, the first direction, so that the illumination light converted into the polarized light P1 can pass through the first polarizing filter unit 108 to reach the light receiving surface of the first display unit 101. And causing the first display unit 101 to perform display.
  • FIG. 4 is a schematic view illustrating another display state of a dual screen display device according to an embodiment of the present invention. Specifically, FIG. 4 illustrates a state in which two display units perform display in the dual screen display device (in the embodiment shown in FIG. 4, the first display unit 101 and the second display unit 102 simultaneously perform display ;).
  • the light source control unit 110 when the display control unit 20 of the electronic device 1 indicates that the first display unit 101 and the second display unit 102 are desired to perform display simultaneously, the light source control unit 110 generates a corresponding Light source control signal. That is, the light source control unit 110 transmits a light emission signal to the first light source unit 103 and the second light source unit 104.
  • the first light source unit 103 and the second light source unit 104 both emit light in response to the received light source control signal.
  • the illumination light emitted by the first light source unit 103 is first converted by the first polarizing unit 105 into the polarized light P1 polarized in the first direction.
  • the polarized light P1 passes through the backlight module unit 107 and is simultaneously directed to the first display unit 101 and the second display unit 102.
  • the polarized light P1 Before reaching the first display unit 101, the polarized light P1 first reaches the first polarizing filter unit 108 disposed before the first display unit 101, due to the first polarizing filter unit 108 and the The polarization directions of the first bias unit 105 are the same, so illumination light converted to the polarized light P1 can pass through the first polarization filter unit 108 to reach the light receiving surface of the first display unit 101.
  • the polarized light P1 reaches the second polarizing filter unit 109 disposed before the second display unit 102, due to the polarization direction of the second polarizing filter unit 109 and the first polarizing unit 105 Orthogonal, that is, the polarization direction of the second polarization filter unit 109 is a second direction orthogonal to the first direction, and illumination light converted to the polarization P1 cannot pass through the second polarization filter unit 109.
  • the illumination light emitted by the second light source unit 104 is first converted by the second polarizing unit 106 into the polarized light P2 polarized in the second direction.
  • the polarized light P2 passes through the backlight module unit 107 and is simultaneously directed to the first display unit 101 and the second display unit 102.
  • the polarized light P2 first reaches the second polarizing filter unit 109 disposed before the second display unit 102, due to the second polarizing filter unit 109 and the The polarization direction of the second polarizing unit 106 is the same, so the illumination light converted into the polarized light P2 can pass through the second polarizing filter unit 109 to reach the light receiving surface of the second display unit 102.
  • the first display unit 101 and the second display unit 102 are divided into The polarized light P1 and the polarized light P2 from the first light source unit 103 and the second light source unit 104 are not received, and the first display unit 101 and the second display unit 102 will simultaneously perform display.
  • FIGS. 1 through 4 a dual screen display device, a dual screen display method thereof, and an electronic device using the dual screen display device according to an embodiment of the present invention are described with reference to FIGS. 1 through 4, which can realize a thinner and lighter dual screen display device, and can Perform the appropriate dual screen display as needed for the display.

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Abstract

一种双屏显示装置(10)、双屏显示方法和电子设备,该双屏显示装置(10)包括:第一显示单元(101)和第二显示单元(102),该第一显示单元(101)的光接收面和该第二显示单元(102)的光接收面彼此相对布置;背光模组单元(107),布置在该第一显示单元(101)的光接收面和该第二显示单元(102)的光接收面之间;光源单元,用于向背光模组单元(107)发射照明光;以及第一偏振滤光单元(108)和第二偏振滤光单元(109),分别布置在该第一显示单元(101)的光接收面上和该第二显示单元(102)的光接收面上,并且该第一偏振滤光单元(108)和该第二偏振滤光单元(109)的偏振方向正交,其中,该照明光通过该背光模组单元(107)向该第一显示单元(101)和第二显示单元(102)偏转,并且通过该第一偏振滤光单元(108)和该第二偏振滤光单元(109)之后照射在该第一显示单元(101)和第二显示单元(102)上。

Description

双屏显示装置、 双屏显示方法和电子设备 技术领域
本发明涉及 LCD显示领域, 更具体地, 本发明涉及一种双屏显示装置、 双屏显示方法和电子设备。 背景技术
近年来, 在越来越多的电子产品中, 除了主显示屏幕外通常还配备第二 显示屏幕, 以便增加电子产品的功能, 为用户提供更加方便的操作。 例如, 翻盖式移动电话通常具有内外屏幕, 其中内屏一般用于执行视频、 游戏应用 和文本编辑应用的显示, 而外屏则常用于显示来电号码、 短信主题等与通信 处理有关的信息。 在移动互联网技术飞速发展的今天, 平板电脑等众多移动 互联设备也逐渐有采用双屏显示设计的趋势, 以获取更佳的用户体验。
在现有的双屏显示模块的设计方案中, 通常是将两块显示单元背对背粘 贴在一起。 如此显示装置的实现难度很低, 但是这种双屏显示模块的厚度和 重量是单个屏幕的两倍。 这样的厚度和重量已经远远不能满足在移动互联网 高速发展的今天, 用户对于便携式移动终端的超轻超薄的需求。 因此, 希望 能够提供一种双屏显示装置、 其双屏显示方法以及使用该双屏显示装置的电 子设备, 从而实现更轻薄的双屏显示装置, 并且可以根据显示需要执行适当 的双屏显示。 发明内容
有鉴于上述情况, 本发明提供了一种双屏显示装置、 双屏显示方法和电 子设备。
根据本发明的一个实施例, 提供了一种双屏显示装置, 包括: 第一显示 单元和第二显示单元, 所述第一显示单元的光接收面和所述第二显示单元的 光接收面彼此相对布置; 背光模组单元, 布置在所述第一显示单元的光接收 面和所述第二显示单元的光接收面之间; 光源单元, 用于向背光模组单元发 射照明光; 以及第一偏振滤光单元和第二偏振滤光单元, 分别布置在所述第 一显示单元的光接收面上和所述第二显示单元的光接收面上, 并且所述第一 偏振滤光单元和所述第二偏振滤光单元的偏振方向正交, 其中, 所述照明光 通过所述背光模组单元向所述第一显示单元和第二显示单元偏转, 并且通过 所述第一偏振滤光单元和第二偏振滤光单元之后照射在所述第一显示单元和 第二显示单元上。
此外, 根据本发明的一个实施例的双屏显示装置, 其中所述光源单元包 括第一光源单元和第二光源单元, 分别布置在背光模组单元的两侧, 并且分 别用于发射第一照明光和第二照明光。
此外, 根据本发明的一个实施例的双屏显示装置, 还包括第一起偏单元 和第二起偏单元, 分别布置在所述第一光源单元和所述背光模组单元之间以 及所述第二光源单元和所述背光模组单元之间, 分别用于接收第一照明光和 第二照明光并且生成第一偏振照明光和第二偏振照明光, 其中所述第一偏振 滤光单元和所述第一起偏单元的偏振方向相同, 所述第二偏振滤光单元和所 述第二起偏单元的偏振方向相同。
此外,根据本发明的一个实施例的双屏显示装置,还包括光源控制单元, 用于根据需要控制所述第一光源单元和第二光源单元分别发光或同时发光。
此外, 根据本发明的一个实施例的双屏显示装置, 其中所述第一起偏单 元和第二起偏单元是偏振膜片或偏振玻璃。
此外, 根据本发明的一个实施例的双屏显示装置, 其中所述背光模组单 元包括导光板和扩散片。
此外, 根据本发明的一个实施例的双屏显示装置, 其中所述背光模组单 元还包括亮度增强片。
根据本发明的另一实施例, 提供了一种双屏显示方法, 应用于一电子设 备中, 所述电子设备包括显示控制单元和双屏显示装置, 所述双屏显示装置 包括第一显示单元和第二显示单元, 所述第一显示单元的光接收面和所述第 二显示单元的光接收面彼此相对布置; 背光模组单元, 布置在所述第一显示 单元的光接收面和所述第二显示单元的光接收面之间; 光源单元, 用于向背 光模组单元发射照明光; 光源控制单元, 用于控制所述光源单元发光; 以及 第一偏振滤光单元和第二偏振滤光单元, 分别布置在所述第一显示单元的光 接收面上和所述第二显示单元的光接收面上, 并且所述第一偏振滤光单元和 所述第二偏振滤光单元的偏振方向正交, 其中, 所述照明光通过所述背光模 组单元向所述第一显示单元和第二显示单元偏转, 并且通过所述第一偏振滤 光单元和第二偏振滤光单元之后照射在所述第一显示单元和第二显示单元 上, 所述双屏显示方法包括: 所述显示控制单元根据所述电子设备的显示需 要, 发送显示控制信号到所述双屏显示装置; 所述双屏显示装置中的光源控 制单元基于接收的所述显示控制信号, 生成光源控制信号, 并且将所述光源 控制信号发送到光源单元; 以及所述光源单元基于接收的所述光源控制信号 发光。
此外, 根据本发明的另一实施例的双屏显示方法, 其中所述光源单元包 括第一光源单元和第二光源单元, 分别布置在背光模组单元的两侧, 并且分 别用于发射第一照明光和第二照明光。
此外, 根据本发明的另一实施例的双屏显示方法, 其中所述双屏显示装 置还包括第一起偏单元和第二起偏单元, 分别布置在所述第一光源单元和所 述背光模组单元之间以及所述第二光源单元和所述背光模组单元之间, 分别 用于接收第一照明光和第二照明光并且生成第一偏振照明光和第二偏振照明 光, 其中所述第一偏振滤光单元和所述第一起偏单元的偏振方向相同, 所述 第二偏振滤光单元和所述第二起偏单元的偏振方向相同。
此外, 根据本发明的另一实施例的双屏显示方法, 其中所述光源单元基 于接收的所述光源控制信号发光包括: 所述第一光源单元和第二光源单元基 于接收的所述光源控制信号分别发光或同时发光。
根据本发明的又一实施例, 提供了一种电子设备, 包括: 双屏显示装置; 以及显示控制单元, 用于控制所述双屏显示装置, 其中所述双屏显示装置包 括第一显示单元和第二显示单元, 所述第一显示单元的光接收面和所述第二 显示单元的光接收面彼此相对布置; 背光模组单元, 布置在所述第一显示单 元的光接收面和所述第二显示单元的光接收面之间; 光源单元, 用于向背光 模组单元发射照明光; 以及第一偏振滤光单元和第二偏振滤光单元, 分别布 置在所述第一显示单元的光接收面上和所述第二显示单元的光接收面上, 并 且所述第一偏振滤光单元和所述第二偏振滤光单元的偏振方向正交, 其中, 所述照明光通过所述背光模组单元向所述第一显示单元和第二显示单元偏 转, 并且通过所述第一偏振滤光单元和第二偏振滤光单元之后照射在所述第 一显示单元和第二显示单元上。
此外, 根据本发明的又一实施例的电子设备, 其中所述光源单元包括第 一光源单元和第二光源单元, 分别布置在背光模组单元的两侧, 并且分别用 于发射第一照明光和第二照明光。 此外, 根据本发明的又一实施例的电子设备, 还包括第一起偏单元和第 二起偏单元, 分别布置在所述第一光源单元和所述背光模组单元之间以及所 述第二光源单元和所述背光模组单元之间, 分别用于接收第一照明光和第二 照明光并且生成第一偏振照明光和第二偏振照明光, 其中所述第一偏振滤光 单元和所述第一起偏单元的偏振方向相同, 所述第二偏振滤光单元和所述第 二起偏单元的偏振方向相同。
此外, 根据本发明的又一实施例的电子设备, 还包括光源控制单元, 用 于根据需要控制所述第一光源单元和第二光源单元分别发光或同时发光。
根据本发明实施例的双屏显示装置、 其双屏显示方法以及使用该双屏显 示装置的电子设备, 可以实现更轻薄的双屏显示装置, 并且可以根据显示需 要执行适当的双屏显示。
要理解的是, 前面的一般描述和下面的详细描述两者都是示例性的, 并 且意图在于提供要求保护的技术的进一步说明。 附图说明
图 1是图示应用根据本发明实施例的双屏显示装置的电子设备的框图; 图 2是图示根据本发明实施例的双屏显示方法的流程图;
图 3 是图示根据本发明实施例的双屏显示装置的一个显示状态的示意 图; 以及
图 4是图示根据本发明实施例的双屏显示装置的另一个显示状态的示意 图。 具体实施方式
以下, 将参考附图详细描述本发明的优选实施例。
首先, 将参照图 1描述应用根据本发明实施例的双屏显示装置的电子设 备。 所述电子设备优选地例如是智能手机、 个人数字助理、 平板电脑等。
图 1是图示应用根据本发明实施例的双屏显示装置的电子设备的框图。 如图 1所示,根据本发明实施例的电子设备 1包括双屏显示装置 10和显示控 制单元 20。 要注意的是, 为了筒化描述, 图 1中仅示出了上述组件。 本领域 的技术人员容易理解,根据本发明实施例的电子设备 1还可以包括其他组件, 诸如中央处理单元、 输入输出单元、 通信单元等。 下面将详细描述电子设备 1中双屏显示装置 10的具体配置。如图 1所示, 所述双屏显示装置 10包括第一显示单元 101和第二显示单元 102。 在本发明 的优选实施例中,所述第一显示单元 101和第二显示单元 102可以是 LCD面 板。 所述第一显示单元 101的光接收面和所述第二显示单元 102的光接收面 彼此相对布置。
所述双屏显示装置 10包括背光模组单元 107。 与现有技术中的双屏显示 装置中两个显示单元分别具有各自的背光模组单元不同, 根据本发明实施例 的双屏显示装置 10中的所述第一显示单元 101和第二显示单元 102将共用所 述背光模组单元 107。 在图 1所示的本发明的一个优选实施例中, 背光模组 单元 107布置在所述第一显示单元 101的光接收面和所述第二显示单元 102 的光接收面之间。 在本发明的一个优选实施例中, 所述背光模组单元 107包 括导光板和扩散片。 此外, 所述背光模组单元 107还包括亮度增强片。 由于 所述背光模组单元 107由所述第一显示单元 101和第二显示单元 102共用, 所以与现有技术相比, 将大大减少所述双屏显示装置 10的厚度和重量。
此外,所述双屏显示装置 10包括为所述第一显示单元 101和第二显示单 元 102提供照明光的光源单元。 在图 1所示的本发明的一个优选实施例中, 所述光源单元包括第一光源单元 103和第二光源单元 104, 布置在背光模组 单元 107的两侧, 分别用于发射第一照明光和第二照明光。 当然, 要理解的 是, 本发明不限于此配置, 所述双屏显示装置 10可以只具有单个光源, 并且 单个光源发出的照明光通过诸如背光模组单元的分光组件进行分光。 此外, 在本发明的一个优选实施例中, 所述第一光源单元 103和第二光源单元 104 是 LED灯。
此外,所述双屏显示装置 10还包括第一偏振滤光单元 108和第二偏振滤 光单元 109。 所述第一偏振滤光单元 108和第二偏振滤光单元 109分别布置 在所述第一显示单元 101的光接收面上和所述第二显示单元 102的光接收面 上, 并且所述第一偏振滤光单元 108和所述第二偏振滤光单元 109的偏振方 向正交。 也就是说, 所述照明光通过所述背光模组单元 107向所述第一显示 单元 101和第二显示单元 102偏转, 并且通过所述第一偏振滤光单元 108和 第二偏振滤光单元 109之后照射在所述第一显示单元 101和第二显示单元 102 上。
此外, 所述双屏显示装置 10还包括第一起偏单元 105和第二起偏单元 106,分别布置在所述第一光源单元 103和所述背光模组单元 107之间以及所 述第二光源单元 104和所述背光模组单元 107之间, 分别用于接收第一照明 光和第二照明光并且生成第一偏振照明光和第二偏振照明光。 其中所述第一 偏振滤光单元 108和所述第一起偏单元 105的偏振方向相同, 所述第二偏振 滤光单元 109和所述第二起偏单元 106的偏振方向相同。 在本发明的一个优 选实施例中, 所述第一起偏单元 105和第二起偏单元 106是偏振膜片或偏振 玻璃。
此外, 所述双屏显示装置 10还包括光源控制单元 110, 用于根据需要控 制所述第一光源单元 103和第二光源单元 104分别发光或同时发光。
如图 1所示,根据本发明实施例的电子设备 1中的显示控制单元 20根据 所述电子设备 1的显示需要, 生成并发送显示控制信号到所述双屏显示装置 10中的所述光源控制单元 110。
以上,参照图 1描述了应用根据本发明实施例的双屏显示装置 10的电子 设备 1的配置。 下面, 将进一步参照图 2描述应用根据本发明实施例的双屏 显示装置 10的电子设备 1的双屏显示方法。
图 2是图示根据本发明实施例的双屏显示方法的流程图。 如图 2所示, 根据本发明实施例的双屏显示方法包括:
在步骤 S201中,所述显示控制单元 20根据所述电子设备 1的显示需要, 发送显示控制信号到所述双屏显示装置 10。 也就是说, 所述显示控制单元 20 根据所述电子设备 1需要执行何种显示, 诸如第一显示单元 101或第二显示 单元 102之一执行单屏显示, 或者第一显示单元 101和第二显示单元 102两 者同时执行双屏显示, 生成并且发送相应的显示控制信号到所述双屏显示装 置 10的所述光源控制单元 110。 此后, 处理进到步骤 S202。
在步骤 S202中, 所述双屏显示装置 10中的光源控制单元 110基于接收 的所述显示控制信号, 生成光源控制信号, 并且将所述光源控制信号发送到 光源单元。 也就是说, 如果所述显示控制信号指示所述电子设备 1希望所述 第一显示单元 101执行显示, 而所述第二显示单元 102不执行显示, 那么所 述光源控制单元 110生成相应的光源控制信号, 所述光源控制信号指示与所 述第一显示单元 101对应的所述第一光源单元 103发光, 而与所述第二显示 单元 102对应的所述第二光源单元 104不发光。 此外, 如果所述显示控制信 号指示所述电子设备 1希望所述第一显示单元 101和所述第二显示单元 102 同时执行显示, 那么所述光源控制单元 110生成相应的光源控制信号, 所述 光源控制信号指示与所述第一显示单元 101对应的所述第一光源单元 103以 及与所述第二显示单元 102对应的所述第二光源单元 104同时发光。 此后, 处理进到步骤 S203。
在步骤 S203中,所述第一光源单元 103和所述第二光源单元 104基于接 收的所述光源控制信号发光。 从而, 与其相应的所述第一显示单元 101和所 述第二显示单元 102执行显示处理。
以下, 将参照图 3和图 4详细描述通过控制所述第一光源单元 103和所 述第二光源单元 104根据所述光源控制信号发光, 实现所述电子设备 1希望 的显示状态的过程。
图 3 是图示根据本发明实施例的双屏显示装置的一个显示状态的示意 图。具体地, 图 3示出了双屏显示装置中仅单个显示单元执行显示的状态(在 图 3所示的实施例中, 所述第一显示单元 101单独执行显示;)。
如图 3所示,当所述电子设备 1的所述显示控制单元 20指示希望所述第 一显示单元 101单独执行显示时, 所述光源控制单元 110生成相应的光源控 制信号。 也就是说, 所述光源控制单元 110发送发光信号到所述第一光源单 元 103, 并且发送不发光信号到所述第二光源单元 104。
响应于接收到的光源控制信号, 所述第一光源单元 103发光, 而所述第 二光源单元 104不发光。 所述第一光源单元 103发出的照明光首先通过所述 第一起偏单元 105转换为在第一方向中偏振的偏振光 Pl。 该偏振光 P1通过 所述背光模组单元 107,同时射向所述第一显示单元 101和第二显示单元 102。 在到达所述第一显示单元 101之前,偏振光 P1首先到达布置在所述第一显示 单元 101之前的所述第一偏振滤光单元 108, 由于所述第一偏振滤光单元 108 与所述第一起偏单元 105的偏振方向相同, 例如同为第一方向, 所以转换为 偏振光 P1的照明光可以通过所述第一偏振滤光单元 108, 到达所述第一显示 单元 101的光接收表面, 使得所述第一显示单元 101执行显示。 相反, 在偏 振光 P1到达布置在所述第二显示单元 102之前的所述第二偏振滤光单元 109 时, 由于所述第二偏振滤光单元 109与所述第一起偏单元 105的偏振方向正 交,即所述第二偏振滤光单元 109的偏振方向为与第一方向正交的第二方向, 那么转换为偏振光 P1的照明光不能通过所述第二偏振滤光单元 109。 此时, 由于没有接收到照明光, 所述第二显示单元 102将不执行显示。 图 4是图示根据本发明实施例的双屏显示装置的另一个显示状态的示意 图。 具体地, 图 4示出了双屏显示装置中两个显示单元执行显示的状态 (在 图 4所示的实施例中, 所述第一显示单元 101和所述第二显示单元 102同时 执行显示;)。
如图 4所示,当所述电子设备 1的所述显示控制单元 20指示希望所述第 一显示单元 101和所述第二显示单元 102同时执行显示时, 所述光源控制单 元 110生成相应的光源控制信号。 也就是说, 所述光源控制单元 110发送发 光信号到所述第一光源单元 103和所述第二光源单元 104。
响应于接收到的光源控制信号, 所述第一光源单元 103和所述第二光源 单元 104都发光。 所述第一光源单元 103发出的照明光首先通过所述第一起 偏单元 105转换为在第一方向中偏振的偏振光 Pl。 该偏振光 P1通过所述背 光模组单元 107, 同时射向所述第一显示单元 101和第二显示单元 102。 在到 达所述第一显示单元 101之前,偏振光 P1首先到达布置在所述第一显示单元 101之前的所述第一偏振滤光单元 108, 由于所述第一偏振滤光单元 108与所 述第一起偏单元 105的偏振方向相同,所以转换为偏振光 P1的照明光可以通 过所述第一偏振滤光单元 108, 到达所述第一显示单元 101 的光接收表面。 相反,在偏振光 P1到达布置在所述第二显示单元 102之前的所述第二偏振滤 光单元 109时, 由于所述第二偏振滤光单元 109与所述第一起偏单元 105的 偏振方向正交, 即所述第二偏振滤光单元 109的偏振方向为与第一方向正交 的第二方向,那么转换为偏振光 P1的照明光不能通过所述第二偏振滤光单元 109。 类似地, 所述第二光源单元 104发出的照明光首先通过所述第二起偏单 元 106转换为在第二方向中偏振的偏振光 P2。 该偏振光 P2通过所述背光模 组单元 107, 同时射向所述第一显示单元 101和第二显示单元 102。 在到达所 述第二显示单元 102之前, 偏振光 P2首先到达布置在所述第二显示单元 102 之前的所述第二偏振滤光单元 109, 由于所述第二偏振滤光单元 109与所述 第二起偏单元 106的偏振方向相同,所以转换为偏振光 P2的照明光可以通过 所述第二偏振滤光单元 109, 到达所述第二显示单元 102的光接收表面。 相 反,在偏振光 P2到达布置在所述第一显示单元 101之前的所述第一偏振滤光 单元 108时, 由于所述第一偏振滤光单元 108与所述第二起偏单元 106的偏 振方向正交,那么转换为偏振光 P2的照明光不能通过所述第一偏振滤光单元 108。 也就是说, 在此状态下, 所述第一显示单元 101和第二显示单元 102分 别接收到来自所述第一光源单元 103和所述第二光源单元 104的偏振光 P1和 偏振光 P2,所述第一显示单元 101和所述第二显示单元 102将同时执行显示。
以上, 参照图 1到图 4描述了根据本发明实施例的双屏显示装置、 其双 屏显示方法以及使用该双屏显示装置的电子设备, 其可以实现更轻薄的双屏 显示装置, 并且可以根据显示需要执行适当的双屏显示。
需要说明的是, 在本说明书中, 术语"包括"、 "包含 "或者其任何其他变 体意在涵盖非排他性的包含, 从而使得包括一系列要素的过程、 方法、 物品 或者设备不仅包括那些要素, 而且还包括没有明确列出的其他要素, 或者是 还包括为这种过程、 方法、 物品或者设备所固有的要素。 在没有更多限制的 情况下, 由语句 "包括一个 ...... "限定的要素, 并不排除在包括所述要素的过 程、 方法、 物品或者设备中还存在另外的相同要素。
最后, 还需要说明的是, 上述一系列处理不仅包括以这里所述的顺序按 时间序列执行的处理, 而且包括并行或分别地、 而不是按时间顺序执行的处 理。
通过以上的实施方式的描述, 本领域的技术人员可以清楚地了解到本发 明可借助软件加必需的硬件平台的方式来实现, 当然也可以全部通过硬件来 实施。 基于这样的理解, 本发明的技术方案对背景技术做出贡献的全部或者 部分可以以软件产品的形式体现出来, 该计算机软件产品可以存储在存储介 质中, 如 ROM/RAM、 磁碟、 光盘等, 包括若干指令用以使得一台计算机设 备(可以是个人计算机, 服务器, 或者网络设备等)执行本发明各个实施例 或者实施例的某些部分所述的方法。
以上对本发明进行了详细介绍, 本文中应用了具体个例对本发明的原理 及实施方式进行了阐述, 以上实施例的说明只是用于帮助理解本发明的方法 及其核心思想; 同时, 对于本领域的一般技术人员, 依据本发明的思想, 在 具体实施方式及应用范围上均会有改变之处, 综上所述, 本说明书内容不应 理解为对本发明的限制。

Claims

权利要求书
1. 一种双屏显示装置, 包括:
第一显示单元和第二显示单元, 所述第一显示单元的光接收面和所述第 二显示单元的光接收面彼此相对布置;
背光模组单元, 布置在所述第一显示单元的光接收面和所述第二显示单 元的光接收面之间;
光源单元, 用于向背光模组单元发射照明光; 以及
第一偏振滤光单元和第二偏振滤光单元, 分别布置在所述第一显示单元 的光接收面上和所述第二显示单元的光接收面上, 并且所述第一偏振滤光单 元和所述第二偏振滤光单元的偏振方向正交,
其中, 所述照明光通过所述背光模组单元向所述第一显示单元和第二显 示单元偏转, 并且通过所述第一偏振滤光单元和第二偏振滤光单元之后照射 在所述第一显示单元和第二显示单元上。
2. 如权利要求 1所述的双屏显示装置,其中所述光源单元包括第一光源 单元和第二光源单元, 分别布置在背光模组单元的两侧, 并且分别用于发射 第一照明光和第二照明光。
3. 如权利要求 2所述的双屏显示装置,还包括第一起偏单元和第二起偏 单元, 分别布置在所述第一光源单元和所述背光模组单元之间以及所述第二 光源单元和所述背光模组单元之间, 分别用于接收第一照明光和第二照明光 并且生成第一偏振照明光和第二偏振照明光, 其中所述第一偏振滤光单元和 所述第一起偏单元的偏振方向相同, 所述第二偏振滤光单元和所述第二起偏 单元的偏振方向相同。
4. 如权利要求 3所述的双屏显示装置, 还包括光源控制单元, 用于根据 需要控制所述第一光源单元和第二光源单元分别发光或同时发光。
5. 如权利要求 3的所述的双屏显示装置,其中所述第一起偏单元和第二 起偏单元是偏振膜片或偏振玻璃。
6. 如权利要求 1到 5的任一所述的双屏显示装置,其中所述背光模组单 元包括导光板和扩散片。
7. 如权利要求 6所述的双屏显示装置,其中所述背光模组单元还包括亮 度增强片。
8. 一种双屏显示方法, 应用于一电子设备中, 所述电子设备包括显示控 制单元和双屏显示装置, 所述双屏显示装置包括第一显示单元和第二显示单 元, 所述第一显示单元的光接收面和所述第二显示单元的光接收面彼此相对 布置; 背光模组单元, 布置在所述第一显示单元的光接收面和所述第二显示 单元的光接收面之间; 光源单元, 用于向背光模组单元发射照明光; 光源控 制单元, 用于控制所述光源单元发光; 以及第一偏振滤光单元和第二偏振滤 光单元, 分别布置在所述第一显示单元的光接收面上和所述第二显示单元的 光接收面上, 并且所述第一偏振滤光单元和所述第二偏振滤光单元的偏振方 向正交, 其中, 所述照明光通过所述背光模组单元向所述第一显示单元和第 二显示单元偏转, 并且通过所述第一偏振滤光单元和第二偏振滤光单元之后 照射在所述第一显示单元和第二显示单元上, 所述双屏显示方法包括:
所述显示控制单元根据所述电子设备的显示需要, 发送显示控制信号到 所述双屏显示装置;
所述双屏显示装置中的光源控制单元基于接收的所述显示控制信号, 生 成光源控制信号, 并且将所述光源控制信号发送到光源单元; 以及
所述光源单元基于接收的所述光源控制信号发光。
9. 如权利要求 8所述的双屏显示方法,其中所述光源单元包括第一光源 单元和第二光源单元, 分别布置在背光模组单元的两侧, 并且分别用于发射 第一照明光和第二照明光。
10. 如权利要求 9所述的双屏显示方法, 其中所述双屏显示装置还包括 第一起偏单元和第二起偏单元, 分别布置在所述第一光源单元和所述背光模 组单元之间以及所述第二光源单元和所述背光模组单元之间, 分别用于接收 第一照明光和第二照明光并且生成第一偏振照明光和第二偏振照明光, 其中 所述第一偏振滤光单元和所述第一起偏单元的偏振方向相同, 所述第二偏振 滤光单元和所述第二起偏单元的偏振方向相同。
11. 如权利要求 10所述的双屏显示方法, 其中所述光源单元基于接收的 所述光源控制信号发光包括: 所述第一光源单元和第二光源单元基于接收的 所述光源控制信号分别发光或同时发光。
12. 一种电子设备, 包括:
双屏显示装置; 以及
显示控制单元, 用于控制所述双屏显示装置, 其中 所述双屏显示装置包括
第一显示单元和第二显示单元, 所述第一显示单元的光接收面和所述第 二显示单元的光接收面彼此相对布置;
背光模组单元, 布置在所述第一显示单元的光接收面和所述第二显示单 元的光接收面之间;
光源单元, 用于向背光模组单元发射照明光; 以及
第一偏振滤光单元和第二偏振滤光单元, 分别布置在所述第一显示单元 的光接收面上和所述第二显示单元的光接收面上, 并且所述第一偏振滤光单 元和所述第二偏振滤光单元的偏振方向正交, 其中, 所述照明光通过所述背 光模组单元向所述第一显示单元和第二显示单元偏转, 并且通过所述第一偏 振滤光单元和第二偏振滤光单元之后照射在所述第一显示单元和第二显示单 元上。
13. 如权利要求 12所述的电子设备,其中所述光源单元包括第一光源单 元和第二光源单元, 分别布置在背光模组单元的两侧, 并且分别用于发射第 一照明光和第二照明光。
14. 如权利要求 13所述的电子设备,还包括第一起偏单元和第二起偏单 元, 分别布置在所述第一光源单元和所述背光模组单元之间以及所述第二光 源单元和所述背光模组单元之间, 分别用于接收第一照明光和第二照明光并 且生成第一偏振照明光和第二偏振照明光, 其中所述第一偏振滤光单元和所 述第一起偏单元的偏振方向相同, 所述第二偏振滤光单元和所述第二起偏单 元的偏振方向相同。
15. 如权利要求 14所述的电子设备, 还包括光源控制单元, 用于根据需 要控制所述第一光源单元和第二光源单元分别发光或同时发光。
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CN103376588A (zh) 2013-10-30
DE112013000371B4 (de) 2019-11-28

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