WO2018059172A1 - 显示装置及其驱动方法 - Google Patents

显示装置及其驱动方法 Download PDF

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Publication number
WO2018059172A1
WO2018059172A1 PCT/CN2017/099480 CN2017099480W WO2018059172A1 WO 2018059172 A1 WO2018059172 A1 WO 2018059172A1 CN 2017099480 W CN2017099480 W CN 2017099480W WO 2018059172 A1 WO2018059172 A1 WO 2018059172A1
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WIPO (PCT)
Prior art keywords
display
display device
display panel
turned
displayable
Prior art date
Application number
PCT/CN2017/099480
Other languages
English (en)
French (fr)
Inventor
杜志宏
Original Assignee
京东方科技集团股份有限公司
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Publication date
Application filed by 京东方科技集团股份有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US15/752,672 priority Critical patent/US20190035338A1/en
Publication of WO2018059172A1 publication Critical patent/WO2018059172A1/zh

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    • G—PHYSICS
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    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/3406—Control of illumination source
    • G09G3/342—Control of illumination source using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines
    • 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
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    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
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    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B6/00—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings
    • G02B6/0001—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems
    • G02B6/0011—Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings specially adapted for lighting devices or systems the light guides being planar or of plate-like form
    • G02B6/0033—Means for improving the coupling-out of light from the light guide
    • G02B6/0035—Means for improving the coupling-out of light from the light guide provided on the surface of the light guide or in the bulk of it
    • G02B6/004—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles
    • G02B6/0041—Scattering dots or dot-like elements, e.g. microbeads, scattering particles, nanoparticles provided in the bulk of the light guide
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    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
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    • G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
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    • 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
    • G02F1/137—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 characterised by the electro-optical or magneto-optical effect, e.g. field-induced phase transition, orientation effect, guest-host interaction or dynamic scattering
    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/3406—Control of illumination source
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    • 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
    • G09G3/34—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 by control of light from an independent source
    • G09G3/36—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 by control of light from an independent source using liquid crystals
    • G09G3/3611—Control of matrices with row and column drivers
    • G09G3/3648—Control of matrices with row and column drivers using an active matrix
    • G—PHYSICS
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    • 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
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    • 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
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    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
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    • 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
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    • 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
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Definitions

  • the present invention belongs to the field of display technologies, and in particular, to a display device and a driving method thereof.
  • display panel As a kind of human-computer interaction interface product, display panel has been widely used in production and life. Most of the display panels in the related art have only a single-sided display function, that is, only one side of the display panel can display an image. However, in digital signage, electronic communication equipment, cash register facilities, window inquiry facilities, exhibition halls and other facilities, it is often required that both sides of the display panel have the ability to display images, that is, the display panel needs to have two displayable surfaces.
  • the existing double-sided display device cannot realize switching between transparent/opaque states to meet different viewing requirements.
  • the present disclosure at least provides a display device and a driving method thereof, in view of the problem that the conventional double-sided display device cannot achieve switching between transparent/opaque states.
  • the present disclosure provides a display device including:
  • a display panel that is transparent and includes two displayable surfaces capable of displaying an image
  • Display switching components respectively disposed on two displayable surface sides of the display panel, configured to switch a state of the display device between transparent and opaque;
  • a controller that controls the display switching member to be turned on or off to cause the display device to be in a transparent state when each of the display switching members is turned off and to be opaque when one of the display switching members is turned on .
  • the display switching component is displayable parallel to the display panel Face settings.
  • each of the display switching components includes a light guide plate doped with light scattering particles, and a first light source disposed on at least one side of the light guide plate, the first light source being a side-entry light source;
  • the first light source is turned on or off to cause the display device to be in a transparent state when the first light source is turned off and to be opaque when one of the first light sources is turned on.
  • each of the display switching components includes a retractable screen
  • the controller controls the curtain to be stowed or lowered so that the display device is in a transparent state when the curtain is stowed, and is opaque when one of the curtains is lowered.
  • each of the display switching components further includes a second light source disposed between the screen and the display panel.
  • a reel is provided adjacent one side of the display panel, one end of the screen is fixed to the reel, and the reel is rotated to retract the curtain.
  • the curtain is constructed of a flexible reflective material.
  • the light emitting direction of the second light source is a direction toward the screen.
  • the controller controls the display switching component on one side of one displayable surface to be turned on, and the display switching component on one side of the other displayable surface to be closed to make the display device opaque.
  • the display device further includes: a backlight respectively disposed on two displayable sides of the display panel, configured to provide backlight to the display panel,
  • the controller controls a backlight located on one side of one of the two displayable surfaces to be turned on, so that the display panel is in one of two displayable surfaces The image is displayed in a transparent state.
  • the light emitting direction of the backlight is a direction toward the display panel.
  • the display panel is a double-sided display liquid crystal display panel, which comprises an array substrate, and a thin film transistor is disposed on the substrate of the array substrate.
  • the thin film transistor includes a metal member, and a light shielding layer is disposed between the metal member and the substrate.
  • the metal component includes a gate, a source and a drain, a gate line, and a data line. Any one or several of them.
  • the display device further includes a driving circuit, the driving circuit is connected to the display panel, and the controller controls the driving circuit to input a driving signal to the display panel to display the display panel .
  • the driving circuit is configured to provide a normal driving signal when displaying an image on a displayable surface, and provide a flip when displaying the image on another displayable surface opposite to the one displayable surface A drive signal is generated by inverting the normal drive signal.
  • the driving circuit identifies a position of a viewer of the display device according to a signal from the controller, and provides one of the normal driving signal and the inversion driving signal according to the position of the viewer .
  • the controller comprises a manual switch or a remote control sensor.
  • the present disclosure also provides a driving method of a display device.
  • the display device is the foregoing display device, and the method includes the following steps:
  • the controller sends a signal to the display panel, and the display panel determines a position of the viewer of the display device relative to the display device according to a transmission direction of the signal;
  • the controller controls the display switching member to be turned on or off according to the determined position of the viewer relative to the display device, so that the display device is in a transparent state when the display switching member is turned off and is turned on at one of the display switching members
  • the time is opaque and the backlight is controlled to be turned on or off to cause the display panel to display an image on one of the two displayable surfaces.
  • FIG. 1 is a schematic structural view of a display device according to an embodiment of the present invention.
  • FIGS. 2-4 are schematic views of a display device including a light guide plate according to an embodiment of the present invention.
  • FIG. 5-7 are schematic views of a display device including a screen according to an embodiment of the present invention.
  • FIGS. 8-9 are schematic structural diagrams of a display panel according to an embodiment of the present invention.
  • FIG. 10 is a schematic structural diagram of a display device including a driving circuit according to an embodiment of the present invention.
  • FIG. 11 is a flow chart showing a driving method of a display device according to an embodiment of the present invention.
  • An embodiment of the present invention provides a display device, as shown in FIG. 1, including a display panel 1, a display switching component 2, a backlight 3, and a controller (not shown in FIG. 1); wherein the display panel 1 is transparent And including two displayable surfaces facing each other; the display switching members 2 are respectively disposed on the two displayable side of the display panel 1; the backlights 3 are respectively disposed on the two displayable sides of the display panel 1; Controlling the display switching member 2 to be turned on or off to cause the display device to be in a transparent state when the display switching member is turned off and in an opaque state when one of the display switching members is turned on, and to control the backlight 3 is turned on or off to cause the display panel 1 to display an image on one of the two displayable faces.
  • the display panel 1 of the display device of the embodiment includes two displayable surfaces, wherein if the controller controls one side of the display switching component to be turned on, the display device has a single-sided opaque display; if the control side backlight is turned on, both sides display The switching part is turned off, and the display device is displayed on one side and transparently.
  • the display device of the embodiment of the invention can meet different viewing needs.
  • the display switching component 2 is disposed parallel to the displayable surface of the display panel.
  • the display switching member 2 may include a light guide plate 23 doped with light scattering particles, and a first light source 21 disposed on at least one side of the light guide plate 23, the first The light source 21 is a side-entry light source.
  • Figure 2 shows the opaque display of the display device when the viewer is on the left side of the display panel.
  • the controller controls the first light source 21 located on the right side of the display panel 1 to be turned on (lighted), and controls the first light source 21 located on the left side to be turned off.
  • the light of the first light source 21 on the right side enters the inside of the light guide plate 23 from the side surface of the side light guide plate 23.
  • the light guide plate 23 is in an atomized state by the scattering of light by the light scattering particles.
  • the observer can only The right side light guide plate 23 in the atomized state is seen through the display panel 1, and the object behind the right side light guide plate 23 is blocked. That is, the display panel 1 is displayed in a single-sided opaque display.
  • Figure 3 shows the transparent display of the display device when the viewer is on the left side of the display panel.
  • the controller controls the first light source 21 located on the right side of the display panel 1 to be turned off, the backlight 3 on the right side to be turned on, and the light is incident into the light guide plate 23 from behind the light guide plate 23 on the right side, and the light scattering particles are not good for the light.
  • the light guide plate 23 assumes a transparent state.
  • the observer can view the image displayed on the displayable surface on the left side of the display panel 1, and the object behind the light guide plate 23 can be seen through the display panel 1. That is, the display panel 1 is in a single-sided transparent display state.
  • the scheme of the above observer on the right side is merely a schematic example. It can be understood that, as shown in FIG. 4, the scheme of the observer on the left side is similar to the scheme of the observer on the right side, and details are not described herein again.
  • the display switching component 2 can be a retractable screen 24 and a second light source disposed between the screen 24 and the display panel 1 and in close proximity.
  • the top or bottom of the display panel eg, at least one side edge of the top or bottom of the display panel).
  • a reel 25 is provided near one side of the display panel 1, and one end of the curtain 24 is fixed to the reel 25, and the reel 25 is rotated to retract the curtain 24.
  • the curtain 24 is constructed of a flexible reflective material.
  • the light exiting direction of the second light source 22 is a direction toward the screen 24.
  • the light emitting direction of the backlight 3 is a direction toward the display panel 1 .
  • the screens 24 are respectively placed on both sides of the transparent display panel 1, and the second light sources 22 are respectively placed on both sides of the transparent display panel 1.
  • the curtain 24 is a flexible white reflective material. 5 and 6 show the opaque display of the display device when the viewer is positioned on the right side of the display panel 1.
  • the controller controls the second light source 22 located on the left side of the display panel 1 to be turned on (lighted), controls the screen 24 on the left side to be stretched, and controls the right side curtain 24 to be stowed, and the viewer can view the right side of the display panel 1. Can display the image displayed on the surface, and at the same time, because the curtain 24 is blocked, observe The object behind the display panel 1 is not visible.
  • the display panel 1 is in a single-sided opaque display state. As shown in FIG. 7, if the control side backlight 3 (see FIG. 5) is turned on, the display switching members 2 are closed on both sides (the two sides of the screen 24 are folded up, and the second light sources 22 on both sides are closed), and the display panel 1 is Single-sided, transparent display status.
  • the curtain 24 and the second light source 22 on each side do not have to be closed or opened at the same time.
  • the second light source 22 on the left side may not be turned on.
  • the display panel is opaque.
  • the backlight for display may be provided by other light sources (eg, backlight 3 on the right).
  • the display panel 1 is a double-sided display liquid crystal display panel 1 including an array substrate 11 , and a thin film transistor is disposed on the substrate 14 of the array substrate 11 .
  • the display panel 1 can be a liquid crystal display panel 1.
  • the specific structure is as shown in FIG. 8 and FIG. 9.
  • the display panel 1 includes an array substrate 11 and a color filter substrate 12, an array substrate 11 and a color filter substrate. 12 is transparent, and the viewer can view the side of the array substrate 11 facing away from the color filter substrate 12 on one side, or view the side of the color filter substrate 12 facing away from the array substrate 11 on the other side.
  • the liquid crystal display panel 1 can also be two transparent liquid crystal display panels 1 that are glued together, that is, the array substrates 11 of the two transparent liquid crystal display panels 1 are stuck together, and the viewers on both sides respectively view two The color filter substrate 12 of the panel 1 is displayed.
  • the thin film transistor includes a metal member, and a light shielding layer 15 is disposed between the metal member and the substrate 14.
  • the display panel 1 is a liquid crystal display panel 1
  • the metal layer reflects light and affects the array substrate 11 Side display effect.
  • a light shielding layer 15 is provided between the gate electrode 13 and the substrate 14, so that reflection can be avoided and the display effect can be enhanced.
  • the material of the light shielding layer 15 may be similar to the material of the black matrix.
  • the display device further includes a driving circuit 4, the driving circuit 4 is connected to the display panel 1, and the controller controls the driving circuit 4 to input a driving signal to the display panel 1 to make The display panel 1 displays an image.
  • a driving circuit 4 for supplying a digital signal (ie, a driving signal) to the display device for displaying the display panel 1 is connected at a side edge position of the display panel 1. .
  • the display panel 1 is a liquid crystal display panel 1
  • the digital signal needs to be inverted when viewed on one side of the array substrate 11.
  • the controller comprises a manual switch or a remote control sensor.
  • the display switch panel 1 is controlled to be in an operating state or a closed state by a manual switch or a remote control sensor (ie, a remote controller), and the light source on the corresponding side of the display panel 1 is turned on.
  • the driving circuit of the display panel 1 recognizes the controller's emission.
  • the direction of the signal, and based on this, the position of the viewer is judged, that is, which side of the display panel 1 the viewer is located, and the digital signal for display needs to be flipped.
  • the display signal is not reversed.
  • the display signal is inverted and the corresponding display is performed.
  • the display panel in the display device of the embodiment of the invention includes two displayable surfaces, and the controller controls the display switching component on both sides of the display panel and the backlight to switch between the on or off states, so that the display device is transparent or opaque. display. Specifically, if the control side display switching component is turned on, the display device is unilaterally opaque; if the backlight on the control side is turned on and the switching components on both sides are turned off, the display device is displayed on one side and transparently.
  • the display device of the present invention can meet different viewing needs.
  • Embodiments of the present invention provide a driving method of the above display device.
  • the display device includes a display panel, a display switching component, a backlight, and a controller, wherein the display panel includes two displayable surfaces.
  • the display device may further include a driving circuit for driving the display panel for display. As shown in FIG. 11, the driving method includes the following steps:
  • the controller sends a signal to the driving circuit, and the driving circuit determines the position of the viewing body relative to the display device according to the direction of the signal emitted by the controller; that is, since the display panel includes two displayable surfaces, the controller determines that the viewing body is located at the display Which side of the panel is used to determine which side of the display switching component and/or backlight to open The line is displayed.
  • the controller controls the display switching component and/or the backlight to switch between the on or off states to make the display device transparent or opaque.
  • the controller comprises a manual switch or a remote control sensor.
  • the manual display switch or the remote control sensor ie, the remote controller
  • the driving circuit of the display panel identifies which side of the display panel the controller is located on. And judge that the digital signal needs to be flipped.
  • the specific embodiments of the above embodiments can also be changed in many ways; for example, the specific material of the light guide plate doped with light scattering particles can be changed according to the actual product, and the retractable screen retracting mode and the reel setting form can be Need to adjust.
  • Embodiments of the present invention provide a display device, which may be any product or component having a display function such as an electronic paper, a tablet computer, a television, a display, or the like.

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Abstract

一种显示装置及其驱动方法。显示装置包括：显示面板（1），其为透明的且包括两个可显示面；控制器；分别设于显示面板（1）的两个可显示面侧的显示切换部件（2）以及背光源（3）。控制器控制显示切换部件（2）开启或关闭，以使显示装置在显示切换部件（2）关闭时呈透明状态并且在显示切换部件（2）之一开启时呈不透明状态。显示装置可满足不同观看需求。

Description

显示装置及其驱动方法 技术领域
本发明属于显示技术领域，具体涉及一种显示装置及其驱动方法。
背景技术
显示面板作为一种人机交互界面产品，已经在生产和生活中得到了广泛的应用。相关技术中的显示面板大多只具有单面显示的功能，即在该显示面板上仅有一个面能够显示图像。但是，在数字标牌、电子通讯器材、收银设施、窗口问询设施、展览馆等设施中往往需要显示面板的两面均具备显示图像的能力，即显示面板需要具有两个可显示面。
已发现现有技术中至少存在如下问题：现有的双面显示装置无法实现透明/不透明状态间的切换，以满足不同观看需求。
发明内容
本公开至少针对现有的双面显示装置无法实现透明/不透明状态间的切换的问题，提供一种显示装置及其驱动方法。
本公开提供了一种显示装置，包括：
显示面板，所述显示面板是透明的并且包括能够显示图像的两个可显示面；
分别设于所述显示面板的两个可显示面侧的显示切换部件，其构造为使所述显示装置的状态在透明与不透明之间切换；
控制器，所述控制器控制所述显示切换部件开启或关闭，以使所述显示装置在每个所述显示切换部件关闭时呈透明状态并且在所述显示切换部件之一开启时呈不透明状态。
可选的是，所述显示切换部件平行于所述显示面板的可显示 面设置。
可选的是，每个所述显示切换部件包括掺杂有光散射粒子的导光板，以及设置在导光板至少一侧的第一光源，所述第一光源为侧入式光源；所述控制器控制所述第一光源开启或关闭，以使所述显示装置在所述第一光源关闭时呈透明状态并且在第一光源之一开启时呈不透明状态。
可选的是，每个所述显示切换部件包括可收放的幕布，并且
所述控制器控制所述幕布收起或放下，以使所述显示装置在所述幕布收起时呈透明状态，在所述幕布之一放下时呈不透明状态。
可选的是，每个所述显示切换部件还包括第二光源，其设置在所述幕布与所述显示面板之间。
可选的是，在靠近所述显示面板的一个侧边设有卷轴，所述幕布的一端固定于所述卷轴上，所述卷轴转动以使所述幕布收放。
可选的是，所述幕布由柔性反光材料构成。
可选的是，所述第二光源的出光方向为射向所述幕布的方向。
可选的是，所述控制器控制位于一个可显示面的一侧的显示切换部件开启、位于另一个可显示面的一侧的显示切换部件关闭，以使所述显示装置呈不透明状态。
可选的是，所述显示装置还包括：分别设于所述显示面板两个可显示面侧的背光源，其构造为向显示面板提供背光，
其中，当所述显示装置呈透明状态时，所述控制器控制位于所述两个可显示面之一的一侧的背光源开启，以使所述显示面板在两个可显示面中的一个上以透明状态显示图像。
可选的是，所述背光源的出光方向为射向所述显示面板的方向。
可选的是，所述显示面板为双面显示的液晶显示面板，其包括阵列基板，所述阵列基板的衬底上设有薄膜晶体管。
可选的是，所述薄膜晶体管包括金属部件，并且在所述金属部件与所述衬底之间设有遮光层。
可选的是，所述金属部件包括栅极、源漏极，栅线、数据线 中的任意一者或几者。
可选的是，所述显示装置还包括驱动电路，所述驱动电路与所述显示面板连接，所述控制器控制所述驱动电路向所述显示面板输入驱动信号以使所述显示面板进行显示。
可选的是，所述驱动电路构造为：当在一个可显示面上显示图像时提供正常驱动信号，当在与所述一个可显示面相对的另一个可显示面上显示该图像时提供翻转驱动信号，所述翻转驱动信号是通过对所述正常驱动信号进行翻转而产生的。
可选的是，所述驱动电路根据来自控制器的信号识别所述显示装置的观看者的位置，并且根据所述观看者的位置提供所述正常驱动信号和所述翻转驱动信号中的一者。
可选的是，所述控制器包括手动开关或遥控传感器。
本公开还提供一种显示装置的驱动方法。所述显示装置为前述显示装置，所述方法包括以下步骤：
控制器向显示面板发出信号，显示面板根据所述信号的发射方向判断所述显示装置的观看者相对于显示装置的位置；
根据判断出的观看者相对于显示装置的位置，控制器控制显示切换部件开启或关闭，以使所述显示装置在所述显示切换部件关闭时呈透明状态并且在所述显示切换部件之一开启时呈不透明状态，并且控制所述背光源开启或关闭，以使所述显示面板在两个可显示面中的一个可显示面上显示图像。
附图说明
图1为本发明的实施例的显示装置的结构示意图；
图2-4为本发明的实施例的包括导光板的显示装置的示意图；
图5-7为本发明的实施例的包括幕布的显示装置的示意图；
图8-9为本发明的实施例的显示面板的结构示意图；
图10为本发明的实施例的包括驱动电路的显示装置的结构示意图；
图11为本发明的实施例的显示装置的驱动方法的流程示意 图。
具体实施方式
为使本领域技术人员更好地理解本发明的技术方案，下面结合附图和具体实施方式对本发明作进一步详细描述。
本发明实施例提供一种显示装置，如图1所示，包括显示面板1、显示切换部件2、背光源3、控制器(图1中未示出)；其中，所述显示面板1是透明的并且包括彼此相对的两个可显示面；显示切换部件2分别设于所述显示面板1两个可显示面侧；背光源3分别设于所述显示面板1两个可显示面侧；控制器控制所述显示切换部件2开启或关闭，以使所述显示装置在所述显示切换部件关闭时呈透明状态并且在所述显示切换部件之一开启时呈不透明状态，并且控制所述背光源3开启或关闭，以使所述显示面板1在两个可显示面中的一个上显示图像。
本实施例的显示装置中的显示面板1包括两个可显示面，其中，控制器若控制一侧显示切换部件开启，显示装置呈单面不透明显示；若控制一侧背光源开启，两侧显示切换部件关闭，显示装置呈单面、透明显示。本发明实施例的显示装置可满足不同观看需求。
在一些实施例中，所述显示切换部件2平行于所述显示面板的可显示面设置。
在一些实施例中，如图2-4所示，显示切换部件2可包括掺杂有光散射粒子的导光板23，以及设置在导光板23至少一侧的第一光源21，所述第一光源21为侧入式光源。
图2示出了观察者在显示面板左侧时显示装置的不透明显示情况。此时，控制器控制位于显示面板1右侧的第一光源21开启(点亮)，控制位于左侧的第一光源21关闭。右侧的第一光源21的光线从该侧导光板23侧面射入导光板23内部，在光散射粒子对光线的散射作用下，导光板23呈现雾化状态。此时观察者只能 透过显示面板1看见雾化状态的右侧导光板23，右侧的导光板23后方的物体被遮挡。即显示面板1呈单面不透明显示。
图3示出了观察者在显示面板左侧时显示装置的透明显示情况。此时，控制器控制位于显示面板1右侧的第一光源21关闭、右侧的背光源3开启，光线从右侧的导光板23后面射入导光板23内部，光散射粒子对光线不起散射作用，导光板23呈现透明状态。此时观察者可以观看在显示面板1的左侧的可显示面上显示的图像，同时可以透过显示面板1看见导光板23后方的物体。即显示面板1呈单面透明显示状态。上述观察者在右侧的方案仅仅是示意性的举例，可以理解的是，如图4所示，观察者在左侧的方案与观察者在右侧的方案类似，在此不再赘述。
在一些实施例中，如图5-7所示，显示切换部件2可为可收放的幕布24和第二光源，第二光源设置在所述幕布24与所述显示面板1之间且靠近所述显示面板的顶部或底部(例如，显示面板顶部或底部的至少一个侧边缘)。
可选的是，在靠近所述显示面板1的一个侧边设有卷轴25，所述幕布24的一端固定于所述卷轴25上，所述卷轴25转动以使所述幕布24收放。
可选的是，所述幕布24由柔性反光材料构成。
可选的是，所述第二光源22的出光方向为射向所述幕布24的方向。
可选的是，所述背光源3的出光方向为射向所述显示面板1的方向。
也就是说，如图5、6、7所示，幕布24分别放置在透明显示面板1的两侧，第二光源22分别放置在透明显示面板1的两侧。幕布24为柔性白色反光材料。图5和图6示出了观看者位于显示面板1右侧时显示装置的不透明显示情况。此时，控制器控制位于显示面板1左侧的第二光源22开启(点亮)，控制左侧的幕布24伸展，同时控制右侧幕布24收起，观看者可观看显示面板1的右侧的可显示面上显示的图像，同时，由于幕布24遮挡，观察 者看不到显示面板1后方的物体。即显示面板1呈单面不透明显示状态。如图7所示，若控制一侧背光源3(参见图5)开启，两侧显示切换部件2关闭(两侧幕布24收起、并且两侧的第二光源22关闭)，显示面板1呈单面、透明显示状态。
需要说明的是，每一侧的幕布24与第二光源22不一定要同时关闭或开启。例如，当左侧幕布24放下时，左侧的第二光源22可以不开启。此时，显示面板呈不透明状态。这种情况下，可由其他光源(例如，右侧的背光源3)提供用于显示的背光。
可选的是，所述显示面板1为双面显示的液晶显示面板1，其包括阵列基板11，所述阵列基板11的衬底14上设有薄膜晶体管。
也就是说，显示面板1可以是一个液晶显示面板1，具体结构如图8和图9所示，具体的，该显示面板1包括阵列基板11和彩膜基板12，阵列基板11和彩膜基板12均为透明的，观看者可在一侧观看阵列基板11的背离彩膜基板12的一面，也可在另一侧观看彩膜基板12的背离阵列基板11的一面。可以理解的是，该液晶显示面板1还可以是粘在一起的两个透明液晶显示面板1，即两个透明液晶显示面板1的阵列基板11粘在一起，两侧的观看者分别观看两个显示面板1的彩膜基板12。
可选的是，所述薄膜晶体管包括金属部件，金属部件与所述衬底14之间设有遮光层15。
也就是说，当显示面板1是一个液晶显示面板1时，若观看者观看阵列基板11的一面，由于阵列基板11的栅极13多由金属构成，金属层会反射光线，影响阵列基板11一侧的显示效果。在此，如图9所示，在栅极13与衬底14之间设置遮光层15，可以避免反射，增强显示效果。具体的，遮光层15的材料可以与黑矩阵的材料类似。
可选的是，所述显示装置还包括驱动电路4，所述驱动电路4与所述显示面板1连接，所述控制器控制所述驱动电路4向所述显示面板1输入驱动信号以使所述显示面板1显示图像。
也就是说，如图10所示，在显示面板1的一侧边缘位置处连接有驱动电路4，驱动电路4用于为显示装置提供数字信号(即，驱动信号)以使显示面板1进行显示。具体的，当显示面板1是一个液晶显示面板1时，若彩膜基板12的一面对观看者来说是正面，那么在阵列基板11的一侧进行观看时，需要对数字信号进行翻转。
可选的是，所述控制器包括手动开关或遥控传感器。
也就是说，通过手动开关或遥控传感器(即遥控器)控制显显示面板1位于运行状态或关闭状态，并打开显示面板1对应侧的光源，此时显示面板1的驱动电路识别控制器发射的信号的方向，并据此判断观看者所在的位置，即判断观看者是位于显示面板1哪一侧，并判断用于显示的数字信号需不需翻转。当观看者位于显示面板1正面(彩膜基板12一侧)时，显示信号不翻转。当观察者位于显示器反面(阵列基板11一侧)时，显示信号翻转，进行相应的显示。
本发明实施例的显示装置中的显示面板包括两个可显示面，控制器控制显示面板两面的显示切换部件和背光源在开启或关闭的状态间切换，以使所述显示装置呈透明或不透明显示。具体的，若控制一侧显示切换部件开启，显示装置呈单面不透明显示；若控制一侧背光源开启、两侧显示切换部件关闭，显示装置呈单面、透明显示。本发明的显示装置可满足不同观看需求。
本发明实施例提供一种上述显示装置的驱动方法，显示装置包括显示面板、显示切换部件、背光源、控制器，其中，显示面板包括两个可显示面。所述显示装置还可包括用于驱动显示面板进行显示的驱动电路。如图11所示，所述驱动方法包括以下步骤：
S01、控制器向驱动电路发出信号，驱动电路根据控制器发射信号的方向判断观看主体相对于显示装置的位置；也就是说，由于显示面板包括两个可显示面，控制器判断观看主***于显示面板的哪一侧，以确定需开启哪一侧的显示切换部件和/或背光源进 行显示。
S02、根据上述判断结果，控制器控制显示切换部件和/或背光源在开启或关闭的状态间切换，以使所述显示装置呈透明或不透明显示。其中，控制器包括手动开关或遥控传感器。具体的，通过手动开关或遥控传感器(即遥控器)控制显显示面板位于运行状态或关闭状态，并打开显示面板对应侧的光源，此时显示面板的驱动电路识别控制器位于显示面板哪一侧，并判断数字信号需不需翻转。
显然，上述各实施例的具体实施方式还可进行许多变化；例如：掺杂有光散射粒子的导光板具体材料可以根据实际产品进行改变，可收放的幕布收放方式、卷轴设置形式可以根据需要进行调整。
本发明实施例提供了一种显示装置，所述显示装置可以为：电子纸、平板电脑、电视机、显示器等任何具有显示功能的产品或部件。
可以理解的是，以上实施方式仅仅是为了说明本发明的原理而采用的示例性实施方式，然而本发明并不局限于此。对于本领域内的普通技术人员而言，在不脱离本发明的精神和实质的情况下，可以做出各种变型和改进，这些变型和改进也视为本发明的保护范围。

Claims (17)

  1. 一种显示装置，包括：
    显示面板，所述显示面板是透明的并且包括能够显示图像的两个可显示面；
    分别设于所述显示面板的两个可显示面侧的显示切换部件，其构造为使所述显示装置的状态在透明与不透明之间切换；
    控制器，所述控制器控制所述显示切换部件开启或关闭，以使所述显示装置在每个所述显示切换部件关闭时呈透明状态并且在所述显示切换部件之一开启时呈不透明状态。
  2. 根据权利要求1所述的显示装置，其中，所述显示切换部件平行于所述显示面板的可显示面设置。
  3. 根据权利要求1所述的显示装置，其中，每个所述显示切换部件包括掺杂有光散射粒子的导光板，以及设置在导光板至少一侧的第一光源，所述第一光源为侧入式光源，并且
    所述控制器控制所述第一光源开启或关闭，以使所述显示装置在所述第一光源关闭时呈透明状态并且在第一光源之一开启时呈不透明状态。
  4. 根据权利要求1所述的显示装置，其中，每个所述显示切换部件包括可收放的幕布，并且
    所述控制器控制所述幕布收起或放下，以使所述显示装置在所述幕布收起时呈透明状态，在所述幕布之一放下时呈不透明状态。
  5. 根据权利要求4所述的显示装置，其中，每个所述显示切换部件还包括第二光源，其设置在所述幕布与所述显示面板之间。
  6. 根据权利要求4所述的显示装置，其中，在靠近所述显示 面板的一个侧边设有卷轴，所述幕布的一端固定于所述卷轴上，所述卷轴转动以使所述幕布收放。
  7. 根据权利要求4所述的显示装置，其中，所述幕布由柔性反光材料构成。
  8. 根据权利要求5所述的显示装置，其中，所述第二光源的出光方向为射向所述幕布的方向。
  9. 根据权利要求1所述的显示装置，其中，所述控制器控制位于一个可显示面的一侧的显示切换部件开启、位于另一个可显示面的一侧的显示切换部件关闭，以使所述显示装置呈不透明状态。
  10. 根据权利要求1所述的显示装置，还包括：
    分别设于所述显示面板两个可显示面侧的背光源，其构造为向显示面板提供背光，
    其中，当所述显示装置呈透明状态时，所述控制器控制位于所述两个可显示面之一的一侧的背光源开启，以使所述显示面板在两个可显示面中的一个上以透明状态显示图像。
  11. 根据权利要求1所述的显示装置，其中，所述显示面板为双面显示的液晶显示面板，其包括阵列基板，所述阵列基板的衬底上设有薄膜晶体管。
  12. 根据权利要求11所述的显示装置，其中，所述薄膜晶体管包括金属部件，并且在所述金属部件与所述衬底之间设有遮光层。
  13. 根据权利要求1所述的显示装置，还包括驱动电路，所述驱动电路与所述显示面板连接，所述控制器控制所述驱动电路向 所述显示面板输入驱动信号以使所述显示面板进行显示。
  14. 根据权利要求13所述的显示装置，其中，所述驱动电路构造为：当在一个可显示面上显示图像时提供正常驱动信号，当在与所述一个可显示面相对的另一个可显示面上显示该图像时提供翻转驱动信号，所述翻转驱动信号是通过对所述正常驱动信号进行翻转而产生的。
  15. 根据权利要求14所述的显示装置，其中，所述驱动电路根据来自控制器的信号识别所述显示装置的观看者的位置，并且根据所述观看者的位置提供所述正常驱动信号和所述翻转驱动信号中的一者。
  16. 根据权利要求13所述的显示装置，其中，所述控制器包括手动开关或遥控传感器。
  17. 如权利要求1-16任一项所述显示装置的驱动方法，所述显示装置包括用于驱动显示面板进行显示的驱动电路，包括以下步骤：
    控制器向驱动电路发出信号，驱动电路根据所述信号的发射方向判断所述显示装置的观看者相对于显示装置的位置；
    根据判断出的观看者相对于显示装置的位置，控制器控制显示切换部件开启或关闭，以使所述显示装置在所述显示切换部件关闭时呈透明状态并且在所述显示切换部件之一开启时呈不透明状态。
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