WO2016141660A1 - 双面显示装置、驱动方法和电子设备 - Google Patents

双面显示装置、驱动方法和电子设备 Download PDF

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Publication number
WO2016141660A1
WO2016141660A1 PCT/CN2015/084444 CN2015084444W WO2016141660A1 WO 2016141660 A1 WO2016141660 A1 WO 2016141660A1 CN 2015084444 W CN2015084444 W CN 2015084444W WO 2016141660 A1 WO2016141660 A1 WO 2016141660A1
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Prior art keywords
double
display device
display panel
timing controller
optical fiber
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PCT/CN2015/084444
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English (en)
French (fr)
Inventor
马伟超
孙志华
刘宝玉
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京东方科技集团股份有限公司
北京京东方显示技术有限公司
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Application filed by 京东方科技集团股份有限公司, 北京京东方显示技术有限公司 filed Critical 京东方科技集团股份有限公司
Priority to US14/912,338 priority Critical patent/US20170039902A1/en
Publication of WO2016141660A1 publication Critical patent/WO2016141660A1/zh

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    • 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
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/1336—Illuminating devices
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F13/00—Illuminated signs; Luminous advertising
    • G09F13/04—Signs, boards or panels, illuminated from behind the insignia
    • G09F13/0413—Frames or casing structures therefor
    • 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
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/133342—Constructional arrangements; Manufacturing methods for double-sided displays
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/02—Composition of display devices
    • G09G2300/023—Display panel composed of stacked panels
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2320/00—Control of display operating conditions
    • G09G2320/02—Improving the quality of display appearance
    • G09G2320/0233—Improving the luminance or brightness uniformity across the screen

Definitions

  • the present disclosure relates to the field of display technologies, and in particular, to a double-sided display device, a driving method, and an electronic device.
  • the backlight of the conventional double-sided display device mainly uses a CCFL (Cold Cathode Fluorescent Lamp), a single-sided LED (Light-Emitting Diode), and a double-sided LED.
  • the CCFL is large in size and high in power consumption, and is currently only available on outdoor billboards.
  • Single-sided LEDs require a special light guide to match them, resulting in high cost and low brightness.
  • Double-sided LEDs have high cost, large power consumption, and large heat generation.
  • the conventional double-sided display device using the above light-emitting elements cannot solve the problems of excessive power consumption, large thickness, and high cost.
  • the main object of the present disclosure is to provide a double-sided display device, a driving method, and an electronic device to solve the problems of excessive power consumption, large thickness, and high cost of the double-sided display device in the prior art.
  • the present disclosure provides a double-sided display device including a first display panel, a second display panel, and a backlight;
  • the backlight includes a housing and a bare optical fiber disposed inside the housing;
  • the surface display device further includes a light source and an external optical fiber;
  • the exterior of the external optical fiber is provided with an anti-leakage layer for preventing light leakage
  • An output end of the light source is connected to the first end of the bare fiber through the external optical fiber;
  • the outer casing is disposed between the first display panel and the second display panel.
  • the second end of the bare fiber is connected to the input end of the light source through an external optical fiber.
  • the double-sided display device of the present disclosure further includes an electronically controlled fiber coupler
  • the bare optical fibers are multiple, and each bare optical fiber corresponds to one or more rows of pixel units on the display panel;
  • the light source is connected to the input end of the electronically controlled fiber coupler through the external optical fiber, and the plurality of output ends of the electronically controlled fiber coupler respectively access the plurality of bare optical fibers through an external optical fiber
  • the second ends of the plurality of bare fibers are respectively connected to the input ends of the light sources through a plurality of the external fibers.
  • the double-sided display device of the present disclosure further includes: a first timing controller, a second timing controller, a micro control unit, and a DC power conversion chip, where
  • the first timing controller is configured to sequentially acquire and analyze display data signals of each row of pixel units on the first display panel from the data lines;
  • the second timing controller is configured to sequentially acquire and analyze display data signals of each row of pixel units on the second display panel from the data lines;
  • the micro control unit is configured to obtain, according to an analysis result of display data signals corresponding to each row of pixel units on the first display panel and the second display panel from the first timing controller and the second timing controller respectively Multiple brightness control signals;
  • the DC power conversion chip is configured to obtain a plurality of brightness adjustment voltages according to the plurality of brightness control signals
  • the electronically controlled fiber coupler is further configured to separately adjust brightness of light outputted by the plurality of output ends according to the plurality of brightness adjustment voltages.
  • the double-sided display device of the present disclosure further includes a circuit board
  • the electronically controlled fiber coupler, the first timing controller, the second timing controller, the micro control unit, and the DC power conversion chip are all disposed on the circuit system board.
  • the light source is also integrated on the circuit board.
  • the double-sided display device of the present disclosure further includes a plurality of transparent protection tubes; each of the bare fibers is disposed inside one of the transparent protection tubes.
  • the light source is a pump light source
  • the leakage prevention layer is a reflective film
  • the present disclosure provides a driving method of a double-sided display device for driving the above-described double-sided display device, including:
  • the first timing controller sequentially acquires and analyzes display data signals of each row of pixel units on the first display panel from the data lines;
  • the second timing controller sequentially acquires and analyzes display data signals of each row of pixel units on the second display panel from the data lines;
  • the micro control unit obtains a plurality of brightness control signals according to analysis results of display data signals corresponding to each row of pixel units on the first display panel and the second display panel from the first timing controller and the second timing controller, respectively. ;
  • the DC power conversion chip obtains a plurality of brightness adjustment voltages according to the plurality of brightness control signals
  • the electronically controlled fiber coupler respectively adjusts the brightness of the light output to the first end of the plurality of bare fibers according to the plurality of brightness adjustment voltages.
  • the present disclosure also provides an electronic device including a double-sided display device thereon.
  • the driving method and the electronic device of the present disclosure the light generated by the light source enters into the outer casing disposed between the two display panels through the optical fiber, and the optical fiber is small in size and cost. Low, low heat generation, so the use of optical fiber to transmit light can reduce the thickness, power consumption and cost of double-sided display devices.
  • FIG. 1 is a schematic overall structural view of a double-sided display device according to an embodiment of the present disclosure
  • FIG. 2 is a structural diagram of a light source, an external optical fiber, and a backlight included in the double-sided display device according to an embodiment of the present disclosure
  • FIG 3 is a structural diagram of a double-sided display device according to an embodiment of the present disclosure.
  • the double-sided display device includes a first display panel, a second display panel, and a backlight;
  • the backlight includes a housing and a bare optical fiber disposed inside the housing;
  • the double-sided display device further includes a light source and an external optical fiber;
  • the exterior of the external optical fiber is provided with an anti-leakage layer for preventing light leakage
  • An output end of the light source is connected to the first end of the bare fiber through the external optical fiber;
  • the outer casing is disposed between the first display panel and the second display panel.
  • the light generated by the light source enters into the outer casing disposed between the two display panels through the optical fiber, and the optical fiber is small in volume, low in cost, and low in heat generation, so the optical fiber is used to transmit light. It can reduce the thickness, power consumption and cost of the double-sided display panel.
  • the double-sided display device includes a first display panel 11, a second display panel 12, and a backlight 13;
  • the backlight 13 includes a housing 131 and a bare fiber 132 disposed inside the housing 131;
  • the double-sided display device further includes a light source 14, a first outer optical fiber 151 and a second outer optical fiber 152;
  • An exterior of the first outer optical fiber 151 is provided with an anti-leakage layer (not shown in FIGS. 1 and 2) for preventing light leakage;
  • An output end of the light source 14 is connected to the first end of the bare fiber 132 through the first outer optical fiber 151;
  • the outer casing 131 is disposed between the first display panel 11 and the second display panel 12 .
  • the second end of the bare fiber 131 is connected to the input end of the light source 14 through the second outer fiber 152, so that the unreleased visible light is returned to the light source through the optical fiber, which further reduces power consumption.
  • the double-sided display device further includes an electronically controlled fiber coupler
  • the bare optical fibers are multiple, and each bare optical fiber corresponds to one or more rows of pixel units on the display panel;
  • the light source is connected to the input end of the electronically controlled fiber coupler through the external optical fiber, and the plurality of output ends of the electronically controlled fiber coupler respectively access the plurality of bare optical fibers through an external optical fiber
  • the second ends of the plurality of bare fibers are respectively connected to the input ends of the light sources through a plurality of the external fibers.
  • the bare fibers are multiple, and each bare fiber corresponds to one or more rows of pixel units, which can make the backlight uniform.
  • the double-sided display device further includes: a first timing controller, a second timing controller, a micro control unit, and a DC power conversion chip, wherein
  • the first timing controller is configured to sequentially acquire and analyze display data signals of each row of pixel units on the first display panel from the data lines;
  • the second timing controller is configured to sequentially acquire and analyze display data signals of each row of pixel units on the second display panel from the data lines;
  • the micro control unit is configured to obtain, according to an analysis result of a display data signal corresponding to each row of pixel units on the first display panel and the second display panel from the first timing controller and the second timing controller respectively Multiple brightness control signals;
  • the DC power conversion chip is configured to obtain a plurality of brightness adjustment voltages according to the plurality of brightness control signals
  • the electronically controlled fiber coupler is further configured to separately adjust brightness of light outputted by the plurality of output ends according to the plurality of brightness adjustment voltages.
  • An alternative embodiment of the dual-sided display device can adjust the brightness of the backlight in real time to achieve a scanning backlight function for double-sided display.
  • the double-sided display device further includes a circuit board
  • the electronically controlled fiber coupler, the first timing controller, the second timing controller, the micro control unit, and the DC power conversion chip are all disposed on the circuit system board, so that the double The integration of the surface display device.
  • the light source can be integrated on the circuit system board;
  • the power source is required to have a large power, a large volume, and a large heat generation, and a separate light source module is required.
  • the double-sided display device is manufactured, it is necessary to separately reserve a position for the light source.
  • the double-sided display device further includes a plurality of transparent protection tubes; each of the bare optical fibers is disposed And disposed inside a transparent protection tube, the transparent protection tube is used to protect the bare optical fiber.
  • the light source may be a pumping light source
  • the leakage preventing layer may be a reflective film.
  • the double-sided display device includes a first display panel (not shown in FIG. 3), a second display panel (not shown in FIG. 3), a pumping source 31, and an electric
  • the third outer fiber 333, the outer casing 34, and the plurality of bare fibers respectively disposed in the transparent protection tube 35 (since the bare fiber is disposed in the transparent protection tube 35, the bare fiber is not shown in FIG. 3), the circuit board 36 a first timing controller T-CON1, a second timing controller T-CON2, a micro control unit MCU, and a DC power conversion chip DC-DC, wherein
  • the outer casing 34 is disposed between the first display panel and the second display panel (the first display panel and the second display panel are not shown in FIG. 3);
  • the pumping source 31 is connected to the input end of the electronically controlled fiber coupler 32 via the first external fiber 331, and the plurality of outputs of the electronically controlled fiber coupler 32 respectively pass through the second external fiber. 332 accessing a plurality of first ends of the bare fibers;
  • the second ends of the plurality of bare fibers are respectively connected to the input ends of the pumping light sources 31 through a plurality of the third external fibers 333;
  • the first timing controller T-CON1 is configured to sequentially acquire and analyze display data signals (not shown in FIG. 3) of each row of pixel units on the first display panel from the data lines;
  • the second timing controller T-CON2 is configured to sequentially acquire and analyze display data signals (not shown in FIG. 3) of each row of pixel units on the second display panel from the data lines;
  • the first timing controller T-CON1 and the second timing controller T-CON2 are controlled by a synchronization signal
  • the micro control unit MCU is connected to the first timing controller T-CON1 and the second timing controller T-CON2 through an SPI (Serial Peripheral Interface) interface, respectively, for respectively The result of analyzing the display data signals for each row of pixel units on the first display panel and the second display panel from the first timing controller T-CON1, the second timing controller T-CON2, and obtaining multiple brightness control Signal
  • the DC power conversion chip DC-DC is connected to the multi-channel brightness control signal output end of the micro control unit MCU, and is configured to obtain a plurality of brightness adjustment voltages according to the plurality of brightness control signals;
  • the electronically controlled fiber coupler 32 is further configured to separately adjust, according to the plurality of brightness adjustment voltages, light brightness of the plurality of output ends to the respective second outer fibers 332;
  • the pumping source 31, the electronically controlled fiber coupler 32, the first timing controller T-CON1, the second timing controller T-CON2, the micro control unit MCU, and the DC power conversion Chip DC-DCs are integrated on the circuit board 36 to enhance the integration of the double-sided display device.
  • the light generated by the pumping light source enters into the outer casing of the backlight through the external optical fiber coated with the reflective film, and the bare optical fiber in the transparent protective tube serves as the light-emitting element.
  • the timing controllers of the two display panels analyze the image data at the same channel position, and transmit the result to the MCU through the SPI interface, MCU synthesis
  • the data of the two generate control signals, change the output voltage value of each branch of the DC-DC, thereby adjusting the brightness of the light in each branch fiber of the electronically controlled fiber coupler, thereby changing the brightness of each channel, and realizing the scanning backlight The function.
  • the double-sided display device described in this embodiment of the present disclosure can greatly reduce the thickness of the module, and has a high energy efficiency index and good practical value.
  • the driving method of the double-sided display device according to the embodiment of the present disclosure, for driving the double-sided display device described above, includes:
  • the first timing controller sequentially acquires and analyzes display data signals of each row of pixel units on the first display panel from the data lines;
  • the second timing controller sequentially acquires and analyzes display data signals of each row of pixel units on the second display panel from the data lines;
  • the micro control unit obtains a plurality of brightness control signals according to analysis results of display data signals corresponding to each row of pixel units on the first display panel and the second display panel from the first timing controller and the second timing controller, respectively. ;
  • the DC power conversion chip obtains a plurality of brightness adjustment voltages according to the plurality of brightness control signals
  • the electronically controlled fiber coupler respectively adjusts the output to the plurality of bare fibers according to the plurality of brightness adjustment voltages The brightness of the first end of the light.
  • the electronic device includes the above-described double-sided display device.

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Abstract

一种双面显示装置、驱动方法和电子设备。所述双面显示装置，包括第一显示面板（11）、第二显示面板（12）和背光源（13）；所述背光源（13）包括外壳（131，34）以及设置于所述外壳（131，34）内部的裸光纤（132）；所述双面显示装置还包括光源（14，31）和外部光纤（151，152，331，332，333）；所述外部光纤（151，152，331，332，333）的外部设置有防泄露层，所述防泄露层用于防止光线泄露；所述光源（14，31）的输出端通过所述外部光纤（151，152，331，332，333）与所述裸光纤（132）的第一端连接；所述外壳（131，34）设置于所述第一显示面板（11）和所述第二显示面板（12）之间。

Description

双面显示装置、驱动方法和电子设备
相关申请的交叉引用
本申请主张在2015年3月11日在中国提交的中国专利申请号No.201510105644.1的优先权，其全部内容通过引用包含于此。
技术领域
本公开涉及显示技术领域，尤其涉及一种双面显示装置、驱动方法和电子设备。
背景技术
对于现有的双面显示装置，功耗高、厚度高是急需解决的问题。现有的双面显示装置的背光源主要的发光元件主要采用CCFL(Cold Cathode Fluorescent Lamp，冷阴极荧光灯管)、单面LED(Light-Emitting Diode，发光二极管)和双面LED等。CCFL的体积大、功耗高，目前仅在户外广告牌上还有应用。单面LED需要特殊的导光板与之配合，成本高、亮度低。双面LED的成本高、功耗大、发热量大。现有的采用以上的发光元件的双面显示装置无法解决功耗过大、厚度大和成本高的问题。
发明内容
本公开的主要目的在于提供一种双面显示装置、驱动方法和电子设备，以解决现有技术中双面显示装置功耗过大、厚度大和成本高的问题。
为了达到上述目的，本公开提供了一种双面显示装置，包括第一显示面板、第二显示面板和背光源；所述背光源包括外壳以及设置于所述外壳内部的裸光纤；所述双面显示装置还包括光源和外部光纤；
所述外部光纤的外部设置有防泄露层，所述防泄露层用于防止光线泄露；
所述光源的输出端通过所述外部光纤与所述裸光纤的第一端连接；
所述外壳设置于所述第一显示面板和所述第二显示面板之间。
可选地，所述裸光纤的第二端通过外部光纤与所述光源的输入端连接。
可选地，本公开所述的双面显示装置还包括电控光纤耦合器；
所述裸光纤为多条，每一条裸光纤对应于显示面板上的一行或多行像素单元；
所述光源通过所述外部光纤与所述电控光纤耦合器的输入端连接，所述电控光纤耦合器的多个输出端分别通过一所述外部光纤接入多条所述裸光纤的第一端；
所述多条裸光纤的第二端分别通过多条所述外部光纤与所述光源的输入端连接。
可选地，本公开所述的双面显示装置还包括：第一时序控制器、第二时序控制器、微控制单元和直流电源转换芯片，其中，
所述第一时序控制器，用于从数据线中依次获取并分析所述第一显示面板上的每一行像素单元的显示数据信号；
所述第二时序控制器，用于从数据线中依次获取并分析所述第二显示面板上的每一行像素单元的显示数据信号；
所述微控制单元，用于根据分别来自第一时序控制器、第二时序控制器的对应于第一显示面板上、第二显示面板上的每一行像素单元的显示数据信号的分析结果，得到多个亮度控制信号；
所述直流电源转换芯片，用于根据该多个亮度控制信号相应得到多个亮度调节电压；
所述电控光纤耦合器，进一步用于根据所述多个亮度调节电压分别调节多个输出端输出的光亮度。
可选地，本公开所述的双面显示装置还包括电路***板；
所述电控光纤耦合器、所述第一时序控制器、所述第二时序控制器、所述微控制单元和所述直流电源转换芯片都设置于所述电路***板上。
可选地，所述光源也集成在电路***板上。
可选地，本公开所述的双面显示装置还包括多个透明保护管；每一所述裸光纤设置于一所述透明保护管内部。
可选地，所述光源为泵浦光源，所述防泄露层为反射膜。
本公开提供了一种双面显示装置的驱动方法，用于驱动上述的双面显示装置，包括：
第一时序控制器从数据线中依次获取并分析第一显示面板上的每一行像素单元的显示数据信号；
第二时序控制器从数据线中依次获取并分析第二显示面板上的每一行像素单元的显示数据信号；
微控制单元根据分别来自第一时序控制器、第二时序控制器的对应于第一显示面板上、第二显示面板上的每一行像素单元的显示数据信号的分析结果，得到多个亮度控制信号；
直流电源转换芯片根据该多个亮度控制信号相应得到多个亮度调节电压；
电控光纤耦合器根据所述多个亮度调节电压分别调节输出至多条裸光纤的第一端的光亮度。
本公开还提供了一种电子设备，包括上的双面显示装置。
与现有技术相比，在本公开所述的双面显示装置、驱动方法和电子设备中，光源产生的光通过光纤进入到设置于两个显示面板之间的外壳中，光纤体积小、成本低、发热量小，因此采用光纤传输光可以降低双面显示装置的厚度、功耗和成本。
附图说明
图1是本公开实施例所述的双面显示装置的总体结构示意图；
图2是本公开实施例所述的双面显示装置包括的光源、外部光纤和背光源的结构图；
图3是本公开一具体实施例所述的双面显示装置的结构图。
具体实施方式
下面将结合本公开实施例中的附图，对本公开实施例中的技术方案进行清楚、完整地描述，显然，所描述的实施例仅仅是本公开一部分实施例，而不是全部的实施例。基于本公开中的实施例，本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例，都属于本公开保护的范围。
除非另作定义，此处使用的技术术语或者科学术语应当为本公开所属领域内具有一般技能的人士所理解的通常意义。本公开专利申请说明书以及权利要求书中使用的“第一”、“第二”以及类似的词语并不表示任何顺序、数量或者重要性，而只是用来区分不同的组成部分。同样，“一个”或者“一”等类似词语也不表示数量限制，而是表示存在至少一个。“连接”或者“相连”等类似的词语并非限定于物理的或者机械的连接，而是可以包括电性的连接， 不管是直接的还是间接的。“上”、“下”、“左”、“右”等仅用于表示相对位置关系，当被描述对象的绝对位置改变后，则该相对位置关系也相应地改变。
本公开实施例所述的双面显示装置，包括第一显示面板、第二显示面板和背光源；
所述背光源包括外壳以及设置于所述外壳内部的裸光纤；
所述双面显示装置还包括光源和外部光纤；
所述外部光纤的外部设置有防泄露层，所述防泄露层用于防止光线泄露；
所述光源的输出端通过所述外部光纤与所述裸光纤的第一端连接；
所述外壳设置于所述第一显示面板和所述第二显示面板之间。
在本公开实施例所述的双面显示装置中，光源产生的光通过光纤进入到设置于两个显示面板之间的外壳中，光纤体积小、成本低、发热量小，因此采用光纤传输光可以降低双面显示面板的厚度、功耗和成本。
如图1、图2所示，本公开实施例所述的双面显示装置，包括第一显示面板11、第二显示面板12和背光源13；
所述背光源13包括外壳131以及设置于所述外壳131内部的裸光纤132；
所述双面显示装置还包括光源14、第一外部光纤151和第二外部光纤152；
所述第一外部光纤151的外部设置有防泄露层(图1和图2中未示出)，所述防泄露层用于防止光线泄露；
所述光源14的输出端通过所述第一外部光纤151与所述裸光纤132的第一端连接；
所述外壳131设置于所述第一显示面板11和所述第二显示面板12之间。
所述裸光纤131的第二端通过第二外部光纤152与所述光源14的输入端连接，这样未释放的可见光通过光纤返回到光源，可进一步降低功耗。
在一可选的实施例中，所述双面显示装置还包括电控光纤耦合器；
所述裸光纤为多条，每一条裸光纤对应于显示面板上的一行或多行像素单元；
所述光源通过所述外部光纤与所述电控光纤耦合器的输入端连接，所述电控光纤耦合器的多个输出端分别通过一所述外部光纤接入多条所述裸光纤的第一端；
所述多条裸光纤的第二端分别通过多条所述外部光纤与所述光源的输入端连接。
在该实施例中，所述裸光纤为多条，每一条裸光纤对应于一行或多行像素单元，可以使得背光均匀。
根据一可选的实施例，所述双面显示装置还包括：第一时序控制器、第二时序控制器、微控制单元和直流电源转换芯片，其中，
所述第一时序控制器，用于从数据线中依次获取并分析所述第一显示面板上的每一行像素单元的显示数据信号；
所述第二时序控制器，用于从数据线中依次获取并分析所述第二显示面板上的每一行像素单元的显示数据信号；
所述微控制单元，用于根据分别来自第一时序控制器、第二时序控制器的、对应于第一显示面板上、第二显示面板上每一行像素单元的显示数据信号的分析结果，得到多个亮度控制信号；
所述直流电源转换芯片，用于根据该多个亮度控制信号相应得到多个亮度调节电压；
所述电控光纤耦合器，进一步用于根据所述多个亮度调节电压分别调节多个输出端输出的光亮度。
该双面显示装置的可选实施例可以实时调节背光亮度，实现双面显示的扫描背光功能。
可选的，所述双面显示装置还包括电路***板；
所述电控光纤耦合器、所述第一时序控制器、所述第二时序控制器、所述微控制单元和所述直流电源转换芯片都设置于所述电路***板上，这样可以提高双面显示装置的集成度。
在实际操作时，当所述双面显示装置的尺寸小时，其需要的光源功率小，体积小，发热小，则光源可以集成在电路***板上；
然而，在大尺寸的双面显示装置中，要求光源功率大，体积大，发热大，则需设置单独的光源模块，在制作双面显示装置的时候，需要单独为光源预留位置。
可选的，所述双面显示装置还包括多个透明保护管；每一所述裸光纤设 置于一所述透明保护管内部，所述透明保护管用于保护所述裸光纤。
具体的，所述光源可以为泵浦光源，所述防泄露层可以为反射膜。
下面通过一具体实施例来说明本公开所述的双面显示装置：
如图3所示，本公开该具体实施例所述的双面显示装置包括第一显示面板(图3中未示)、第二显示面板(图3中未示)、泵浦光源31、电控光纤耦合器32、涂覆有反射膜的第一外部光纤331(反射膜在图3中未示)、多条涂覆有反射膜的第二外部光纤332、多条涂覆有反射膜的第三外部光纤333、外壳34、分别设置于透明保护管35内的多条裸光纤(由于裸光纤设置于透明保护管35内，因此在图3中裸光纤未示出)、电路***板36、第一时序控制器T-CON1、第二时序控制器T-CON2、微控制单元MCU和直流电源转换芯片DC-DC，其中，
所述外壳34设置于所述第一显示面板和第二显示面板之间(图3中未示出第一显示面板和第二显示面板)；
所述泵浦光源31通过所述第一外部光纤331与所述电控光纤耦合器32的输入端连接，所述电控光纤耦合器32的多个输出端分别通过一所述第二外部光纤332接入多条所述裸光纤的第一端；
所述多条裸光纤的第二端分别通过多条所述第三外部光纤333与所述泵浦光源31的输入端连接；
所述第一时序控制器T-CON1，用于从数据线中依次获取并分析所述第一显示面板上的每一行像素单元的显示数据信号(图3中未示)；
所述第二时序控制器T-CON2，用于从数据线中依次获取并分析所述第二显示面板上的每一行像素单元的显示数据信号(图3中未示)；
所述第一时序控制器T-CON1和所述第二时序控制器T-CON2通过同步信号控制；
所述微控制单元MCU，通过SPI(Serial Peripheral Interface，串行外设接口)接口分别与所述第一时序控制器T-CON1和所述第二时序控制器T-CON2连接，用于根据分别来自第一时序控制器T-CON1、第二时序控制器T-CON2的对于第一显示面板上、第二显示面板上的对于每一行像素单元的显示数据信号的分析结果，得到多个亮度控制信号；
所述直流电源转换芯片DC-DC，与所述微控制单元MCU的多路亮度控制信号输出端连接，用于根据该多个亮度控制信号相应得到多个亮度调节电压；
所述电控光纤耦合器32，进一步用于根据所述多个亮度调节电压分别调节多个输出端输出至各个第二外部光纤332的光亮度；
所述泵浦光源31、所述电控光纤耦合器32、所述第一时序控制器T-CON1、所述第二时序控制器T-CON2、所述微控制单元MCU和所述直流电源转换芯片DC-DC都集成在所述电路***板36上，以提升所述双面显示装置的集成度。
本公开该具体实施例所述的双面显示装置在工作时，泵浦光源产生的光通过涂覆有反射膜的外部光纤进入到背光源的外壳中，透明保护管中的裸光纤作为发光元件，释放可见光；未释放的光通过外部光纤返回到泵浦光源，重复使用；两个显示面板的时序控制器分析各自相同通道位置处的图像数据，并将结果通过SPI接口传输给MCU，MCU综合两者的数据，产生控制信号，改变DC-DC各个支路的输出电压值，从而调节电控光纤耦合器的各个支路光纤中的光亮度，进而改变了各个通道的亮度，实现了扫描背光的功能。
本公开该具体实施例所述的双面显示装置可以大大减小模组的厚度，并且具有很高能效指数和很好的实用价值。
本公开实施例所述的双面显示装置的驱动方法，用于驱动上述的双面显示装置，包括：
第一时序控制器从数据线中依次获取并分析第一显示面板上的每一行像素单元的显示数据信号；
第二时序控制器从数据线中依次获取并分析第二显示面板上的每一行像素单元的显示数据信号；
微控制单元根据分别来自第一时序控制器、第二时序控制器的对应于第一显示面板上、第二显示面板上的每一行像素单元的显示数据信号的分析结果，得到多个亮度控制信号；
直流电源转换芯片根据该多个亮度控制信号相应得到多个亮度调节电压；
电控光纤耦合器根据所述多个亮度调节电压分别调节输出至多条裸光纤 的第一端的光亮度。
本公开实施例所述的电子设备，包括上述的双面显示装置。
以上所述是本公开的可选实施方式，应当指出，对于本技术领域的普通技术人员来说，在不脱离本公开所述原理的前提下，还可以作出若干改进和润饰，这些改进和润饰也应视为本公开的保护范围。

Claims (10)

  1. 一种双面显示装置，包括第一显示面板、第二显示面板和背光源；其中，所述背光源包括外壳以及设置于所述外壳内部的裸光纤；所述双面显示装置还包括光源和外部光纤；
    所述外部光纤的外部设置有防泄露层，所述防泄露层用于防止光线泄露；
    所述光源的输出端通过所述外部光纤与所述裸光纤的第一端连接；
    所述外壳设置于所述第一显示面板和所述第二显示面板之间。
  2. 如权利要求1所述的双面显示装置，其中，所述裸光纤的第二端通过外部光纤与所述光源的输入端连接。
  3. 如权利要求1所述的双面显示装置，还包括电控光纤耦合器；
    所述裸光纤为多条，每一条裸光纤对应于显示面板上的一行或多行像素单元；
    所述光源通过所述外部光纤与所述电控光纤耦合器的输入端连接，所述电控光纤耦合器的多个输出端分别通过一所述外部光纤接入多条所述裸光纤的第一端；
    所述多条裸光纤的第二端分别通过多条所述外部光纤与所述光源的输入端连接。
  4. 如权利要求3所述的双面显示装置，还包括：第一时序控制器、第二时序控制器、微控制单元和直流电源转换芯片，其中，
    所述第一时序控制器，用于从数据线中依次获取并分析所述第一显示面板上的每一行像素单元的显示数据信号；
    所述第二时序控制器，用于从数据线中依次获取并分析所述第二显示面板上的每一行像素单元的显示数据信号；
    所述微控制单元，用于根据分别来自第一时序控制器、第二时序控制器的对应于第一显示面板上、第二显示面板上的每一行像素单元的显示数据信号的分析结果，得到多个亮度控制信号；
    所述直流电源转换芯片，用于根据该多个亮度控制信号相应得到多个亮度调节电压；
    所述电控光纤耦合器，进一步用于根据所述多个亮度调节电压分别调节多个输出端输出的光亮度。
  5. 如权利要求4所述的双面显示装置，还包括电路***板；
    所述电控光纤耦合器、所述第一时序控制器、所述第二时序控制器、所述微控制单元和所述直流电源转换芯片都设置于所述电路***板上。
  6. 如权利要求5所述的双面显示装置，所述光源集成在电路***板上。
  7. 如权利要求1至6中任一权利要求所述的双面显示装置，还包括多个透明保护管；每一所述裸光纤设置于一所述透明保护管内部。
  8. 如权利要求1至6中任一权利要求所述的双面显示装置，其中，所述光源为泵浦光源，所述防泄露层为反射膜。
  9. 一种双面显示装置的驱动方法，用于驱动如权利要求4至8中任一权利要求所述的双面显示装置，包括：
    第一时序控制器从数据线中依次获取并分析第一显示面板上的每一行像素单元的显示数据信号；
    第二时序控制器从数据线中依次获取并分析第二显示面板上的每一行像素单元的显示数据信号；
    微控制单元根据分别来自第一时序控制器、第二时序控制器的对应于第一显示面板上、第二显示面板上的每一行像素单元的显示数据信号的分析结果，得到多个亮度控制信号；
    直流电源转换芯片根据该多个亮度控制信号相应得到多个亮度调节电压；
    电控光纤耦合器根据所述多个亮度调节电压分别调节输出至多条裸光纤的第一端的光亮度。
  10. 一种电子设备，包括如权利要求1至8中任一权利要求所述的双面显示装置。
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