WO2015096457A1 - 显示装置以及显示方法 - Google Patents

显示装置以及显示方法 Download PDF

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Publication number
WO2015096457A1
WO2015096457A1 PCT/CN2014/082052 CN2014082052W WO2015096457A1 WO 2015096457 A1 WO2015096457 A1 WO 2015096457A1 CN 2014082052 W CN2014082052 W CN 2014082052W WO 2015096457 A1 WO2015096457 A1 WO 2015096457A1
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WO
WIPO (PCT)
Prior art keywords
display
video
signal source
display screen
video signal
Prior art date
Application number
PCT/CN2014/082052
Other languages
English (en)
French (fr)
Inventor
武乃福
林家强
武延兵
Original Assignee
京东方科技集团股份有限公司
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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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 US14/422,848 priority Critical patent/US9369634B2/en
Publication of WO2015096457A1 publication Critical patent/WO2015096457A1/zh

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Classifications

    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/222—Studio circuitry; Studio devices; Studio equipment
    • H04N5/262—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects
    • H04N5/2624—Studio circuits, e.g. for mixing, switching-over, change of character of image, other special effects ; Cameras specially adapted for the electronic generation of special effects for obtaining an image which is composed of whole input images, e.g. splitscreen
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/44—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs
    • H04N21/4402—Processing of video elementary streams, e.g. splicing a video clip retrieved from local storage with an incoming video stream or rendering scenes according to encoded video stream scene graphs involving reformatting operations of video signals for household redistribution, storage or real-time display
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
    • H04N13/31—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays using parallax barriers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
    • H04N21/431—Generation of visual interfaces for content selection or interaction; Content or additional data rendering
    • H04N21/4312—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations
    • H04N21/4316—Generation of visual interfaces for content selection or interaction; Content or additional data rendering involving specific graphical features, e.g. screen layout, special fonts or colors, blinking icons, highlights or animations for displaying supplemental content in a region of the screen, e.g. an advertisement in a separate window
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
    • H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
    • H04N21/47—End-user applications
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N3/00—Scanning details of television systems; Combination thereof with generation of supply voltages
    • H04N3/10—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical
    • H04N3/12—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by switched stationary formation of lamps, photocells or light relays
    • H04N3/127—Scanning details of television systems; Combination thereof with generation of supply voltages by means not exclusively optical-mechanical by switched stationary formation of lamps, photocells or light relays using liquid crystals
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N5/00—Details of television systems
    • H04N5/44—Receiver circuitry for the reception of television signals according to analogue transmission standards
    • H04N5/445—Receiver circuitry for the reception of television signals according to analogue transmission standards for displaying additional information
    • H04N5/44504—Circuit details of the additional information generator, e.g. details of the character or graphics signal generator, overlay mixing circuits
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N7/00—Television systems
    • H04N7/01—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level
    • H04N7/0117—Conversion of standards, e.g. involving analogue television standards or digital television standards processed at pixel level involving conversion of the spatial resolution of the incoming video signal
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N9/00—Details of colour television systems
    • H04N9/64—Circuits for processing colour signals
    • H04N9/67—Circuits for processing colour signals for matrixing
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30—Image reproducers
    • H04N2013/40—Privacy aspects, i.e. devices showing different images to different viewers, the images not being viewpoints of the same scene
    • H04N2013/403—Privacy aspects, i.e. devices showing different images to different viewers, the images not being viewpoints of the same scene the images being monoscopic

Definitions

  • the present invention belongs to the field of display technologies, and in particular, to a display device and a display method. Background technique
  • dual-view display devices also known as dual-field display devices have appeared in recent years.
  • the dual view display is a new technology that sees two screen contents from the same display screen as the visual angle changes, that is, one screen dual display mode, for example: In a car, the driver sees navigation information and various Driving prompt information, passengers in the passenger seat see other programs such as sports, fashion or entertainment; or, in family life, multiple family members can view images of different programs through a TV.
  • This user-friendly "double vision" function satisfies the different requirements of car passengers and family members for information content. Of course, if you want to see the image of the same content, you can adjust to the normal mode at any time.
  • the two video signals used in the conventional dual-view display device for dual-field display are respectively derived from two independent signal sources, for example, as shown in input terminal 1 of FIG. 1, the vehicle PC (input A) and The car DVD (input B) each provides a video stream, and is respectively connected to the processor 2 through a signal line, and the processor 2 performs image synchronization, image rearrangement and the like on the two video streams, and then performs encoding processing.
  • the subsequent video stream is fed to display 1 (2VF Sc reen ) for dual field of view display.
  • the processor 2 that processes the two video streams is independent of the display screen 32, the car PC, and the car DVD.
  • the current technology for realizing dual view display is limited to using two independent signal sources, and the processing components for processing the video signals from the two signal sources to realize dual view display are located at the two signal sources.
  • External components so the system for realizing dual-view display in the prior art has a complicated structure, takes up a large space, and is inconvenient to operate.
  • the video signals of the two signal sources are respectively transmitted to the display screen through respective channels for display. , resulting in complex transmission of video signals. Therefore, it is desirable to improve the existing configuration for realizing dual view display, thereby being able to utilize one
  • a playback device such as a PC
  • a dual view display device and a dual view display method are provided, which make the dual view display easy to implement and the cumbersomeness of the video signal source transmission is greatly reduced.
  • a technical solution that solves the technical problem of the present invention is a dual-view display device including a display panel and a video stream provider, the display panel including a display screen and a separation module, wherein the video stream provider provides a Or two video streams, encoded before the one or two video streams enter the display screen to form a video signal source, and the video signal source is input to the display screen in a single channel form, and
  • the separation module separates the pictures displayed in the display screen into two image pictures for each of the two video streams to achieve dual view display.
  • the separation module is disposed on a side of the display panel adjacent to the viewer or away from the viewer.
  • the display panel further includes a comparison module, the input end of the comparison module is connected to the output end of the video stream provider, and the output end of the comparison module is connected to the input end of the separation module, the comparison module And determining whether the video signal source includes two video streams, and controlling opening or closing of the separation module according to the determination result.
  • the dual view display device further comprises a processing module for encoding the two video streams to form the video signal source, wherein the encoding process comprises image rearrangement or image interleaving.
  • the processing module is disposed in the video stream provider; or the display panel further includes a driving circuit electrically connected to the display screen, and the processing module is disposed in the driving circuit.
  • the driving circuit further includes a signal conversion module, and the signal conversion module is configured to perform signal format conversion on the encoded video signal source received by the signal conversion module, and input the signal to the display screen.
  • the signal format output by the processing module is DVI
  • the signal format input to the display screen is LDVS
  • the signal conversion module converts the DVI signal into the LDVS signal.
  • the separation module is a controllable active grating.
  • the active grating is a twisted nematic liquid crystal cell
  • the display screen and the twisted nematic liquid crystal cell are provided with matching polarizing plates.
  • the display screen displays two image frames for each of the two video streams in a regionally spaced manner, and the manner of the regional interval includes a manner of row regional spacing, and a manner of column regional spacing. And the way the blocks are spaced apart.
  • a technical solution to solve the technical problem of the present invention is a display method, which includes:
  • the video signal source is input to the display screen in a single channel for display.
  • the display method further comprises: determining whether a picture to be displayed on the display screen is before the video signal source is input to the display screen, or after the video signal source is input to the display screen Separation is performed to achieve a dual view display.
  • the one or two video streams are provided by a same video stream provider, and encoding processing of the one or two video streams is performed in the video stream provider; or, a driving circuit on the display screen Encoding processing of the one or two video streams is performed.
  • the video signal source is input to the display screen in a single channel manner, and specifically includes: the video signal source is converted into a signal format, and the converted video signal source is input to the display screen.
  • the display method further comprises:
  • the video signal source includes two video streams, separating the screen displayed in the display screen to achieve dual view display; When it is determined that the video signal source includes a single video stream, the display of the display is maintained.
  • the beneficial effects of the present invention are: forming a video signal source by pre-coding the two video streams before inputting the display screen, and then inputting the display screen in a single channel form; and simultaneously determining whether it is in the display screen according to the nature of the video signal source
  • the display screen is separated to perform dual field of view display.
  • two video streams are provided by the same video stream provider, and can be pre-coded in the video stream provider or in the driving circuit, so that the cumbersomeness of the video signal source transmission is greatly reduced, and the dual-view display device is The structure is simpler.
  • FIG. 1 is a schematic structural view of a dual view display device in the prior art
  • FIG. 2 is a schematic structural diagram of a dual-view display device according to Embodiment 1 of the present invention
  • FIG. 3 is a schematic diagram of a screen separation performed by a separation module according to Embodiment 1 of the present invention
  • FIG. 4 is a schematic flowchart of implementing dual-view display according to Embodiment 1 of the present invention
  • FIG. 5 is a schematic structural diagram of a dual-view display device according to Embodiment 1 of the present invention
  • FIG. 6 is a schematic diagram of a dual-view display image screen according to Embodiment 1 of the present invention.
  • the embodiment provides a dual view display device including a display panel 3, the display panel 3 includes a display screen 32, and the dual view display device further includes a video stream provider 5, the video stream provider 5 is for providing two video streams which are encoded to form a video signal source before being input to the display screen 32, and then the video signal source is input to the display screen 32 in a single channel.
  • a single channel can be understood as a data transmission line.
  • the display panel 3 further includes a separation module 33 disposed on a side of the display panel 3 adjacent to the viewer, and the separation module 33 is configured to display the two video streams to be displayed in the display screen 32. The picture is separated to achieve a dual view display.
  • the separation module 33 employs a grating structure and will be described below.
  • the 32 displays the picture in a specific form; after the display picture is separated by the separation module 33, two image pictures respectively for the above two video streams are displayed in the display panel 3.
  • the viewer views the display screen in a tree eye manner, and the displayed display screen is the two image screens displayed in the display panel 3, which is realized by the display screen 32 in cooperation with the separation module 33.
  • two video streams are input to the display screen 32 through a single channel in the form of a video signal source; and preferably, the two video streams are from the same video.
  • the stream provider 5 is provided to adapt to the playback requirements of the dual view display technology.
  • the two video streams are pre-encoded by the processing module 4, and the encoding process includes image rearrangement or image interleaving.
  • the dual view display device further includes a driving circuit 31 electrically connected to the liquid crystal display.
  • the processing module 4 is disposed in the driving circuit 31, and the output end of the processing module 4 is connected to the input end of the liquid crystal display.
  • the processing module 4 mixes two different video streams
  • the pixel structure of the display screen 32, the opening size of the grating of the separation module 33, the image rearrangement mode, and the viewing distance are comprehensively considered.
  • a special mark can be added to the header of the video stream file, and the special mark can be used to facilitate the subsequent processing to identify whether the video signal source containing the plurality of video streams is mixed.
  • the display screen 32 displays two image frames for two video streams in a regionally spaced manner, and the manner of regional spacing includes a manner of row regional spacing, a column regional spacing manner, or a block regional spacing manner. .
  • the image screens for each video stream are displayed in a regionally spaced manner, that is, in the form of a plurality of horizontally spaced intervals, a plurality of longitudinally spaced intervals, or a plurality of blocks, the display accuracy is displayed. It is preferably at the pixel level.
  • the image synthesis mechanism can be used without In the case of the size of the overall image picture displayed for each video stream, the viewer can obtain a good viewing effect with a larger viewing angle range.
  • the driving circuit 31 further includes a signal conversion module (not shown in FIG. 2) for performing signal format conversion on the encoded video signal source received by the encoder circuit 31, and inputting it to the display screen 32.
  • the video signal source is DVI (Di g i ta l
  • V i sua l Interface (referred to as digital video interface)
  • the signal format is output from the processing module 4 to the signal conversion module, and is format-converted by the signal conversion module to LVDS (Low-Vo l tage Di f ferent ia l S i gna l Ing, referred to as low voltage differential signal))
  • LVDS Low-Vo l tage Di f ferent ia l S i gna l Ing, referred to as low voltage differential signal
  • DVI is a video interface for digital signal transmission. It can directly transfer digital signals to the display without conversion. It saves DAD (digital-analog-to-digital) conversion process. Therefore, DVI interface has fast speed, clear picture and convenient Upgrade and other advantages.
  • a conventional video stream such as a VGA format or a TMDS format signal input panel, must be converted to an LVDS format signal.
  • the dual view display device further includes a comparison module 34.
  • the input end of the comparison module 34 is connected to the output end of the video stream provider 5, the output end of the comparison module 34 is connected to the input end of the separation module 33, and the comparison module 34 is used to determine the video signal. Whether the source is two video streams, and controlling the opening or closing of the separation module 33 according to the judgment result:
  • the comparison module 34 determines that the video signal source is two video streams, the separation module 33 is opened, and the screen is separated to realize dual-view display.
  • the separation module 33 is a controllable active grating.
  • the separation module 33 can be a twisted nematic liquid crystal cell. Due to the controllability of the twisted nematic liquid crystal, the twisted nematic liquid crystal cell is equivalent to an active grating, and the light passing therethrough can be adjusted.
  • the liquid crystal display and the twisted nematic liquid crystal cell are each provided with a matching polarizing plate.
  • the liquid crystal display comprises an array substrate and a color filter substrate disposed on the box, and a liquid crystal layer is disposed between the array substrate and the color filter substrate, and a polarizing plate is disposed on each of the opposite sides of the array substrate and the color filter substrate, for example: an array A first polarizing plate is disposed on an outer side of the substrate, and a second polarizing plate is disposed on an outer side of the color filter substrate.
  • the polarization directions of the first polarizing plate and the second polarizing plate are orthogonal to each other.
  • Twisted nematic liquid crystal cell including two sides a substrate and a twisted nematic liquid crystal layer disposed between the two substrates, wherein the twisted nematic liquid crystal cell is further provided with at least a third polarizing plate, and the polarizing direction of the third polarizing plate is the same as the polarization direction of the first polarizing plate or the second polarizing plate .
  • the third polarizing plate disposed in the twisted nematic liquid crystal cell may be disposed on either side of the twisted nematic liquid crystal cell, but the first The polarization direction of the three polarizers is the same as the polarization direction of the polarizer disposed on the array substrate or the color filter substrate side in the liquid crystal display.
  • the separation module 33 is disposed on a side of the display panel near the viewer, that is, the twisted nematic liquid crystal cell is disposed near the color filter substrate such that the third polarizer is located away from the liquid crystal layer, and then the third The polarization direction of the polarizing plate is the same as the polarization direction of the second polarizing plate.
  • Fig. 3 is a schematic view showing a video interleaving process in which a twisted nematic liquid crystal cell is exemplified by a column-region spacing method.
  • the screens displayed on the liquid crystal display screen at the corresponding positions are respectively displayed in a column-regional interval, so that different image frames can be respectively seen by different viewers.
  • the dual-view display device in this embodiment integrates a device for providing a video signal, and integrates two devices in the prior art that generally provide two video streams into one device, thereby
  • the video stream input terminal 1 is reduced, and the independent processor 2 is reduced, and the function is replaced by the processing module 4 integrated in the display screen, which not only greatly alleviates the cumbersomeness of the video signal source transmission, but also saves space.
  • the embodiment provides a dual view display method, including:
  • Step S1) The same video stream provider provides two video streams.
  • one application is: simultaneously opening two players (such as a storm video, a medical P player) on the host interface of the vehicle PC (as the video stream provider 5), and a video on the host interface of the vehicle PC.
  • the left and right sides of the window are distributed and played simultaneously. Since the two video streams are pre-processed by the video stream, the video stream provider 5 is only required (in this embodiment, the vehicle is used for the vehicle).
  • the video stream provider 5 is only required (in this embodiment, the vehicle is used for the vehicle).
  • two software players can be played, and the video window of the car PC can be played in accordance with the screen display ratio of the display device screen.
  • Step S 2 Encoding one or two video streams to form a video source.
  • the video input driving circuit 31 played by one or two players provided by the same video stream provider 5 performs encoding processing of two video streams in the processing module 4 of the driving circuit 31 to form a video signal. source.
  • Step S 3 The video source is input to the display in a single channel for display.
  • the video signal source is input to the display screen 32 in a single channel form, and specifically includes: converting the encoded video signal source to a signal format by the signal conversion module, and converting the formatted video signal source to the LVDS format. Input to display screen 32.
  • whether the video signal source is input to the display screen or after the video signal source is input to the display screen can determine whether the picture is separated to achieve dual view display. Specifically, as shown in the flow of implementing the dual view display in FIG. 4, it is first determined whether the video signal source is two video streams; when it is determined that the video signal source includes two video streams, the screen displayed in the display screen 32 is separated to implement Dual view display, that is, dual view mode; when it is judged that the video signal source contains a single video stream, the picture display in the display screen 32 is maintained, that is, the normal mode.
  • the liquid crystal layer in the liquid crystal display is deflected under the action of an electric field to realize image display; at the same time, the comparison module 34 receives the video stream signal of the processing module 4 and performs judgment, when the video signal source is two videos. When streaming, the comparison module 34 performs control to deflect the liquid crystal in the twisted nematic liquid crystal cell, thereby separating the image image into two image images respectively for different video streams displayed in different regions of the liquid crystal display, The display screens in the liquid crystal display are separated, so that the viewer can view the image images of different contents from different viewing angles. For example, the LCD screen (here 2VF Sc ree) has a display resolution of 800 * 6 00.
  • the screen aspect ratio of each player is set to 2 : 3 ( 4 00 : 600 ) , on the left half of the display device screen and The right half of the screen is played separately, as shown in Figure 6.
  • the display manner here is an example of the display manner of the aforementioned block regional interval.
  • liquid crystal display in this embodiment can be divided into multiple display areas as needed.
  • two video streams can be displayed in the set display area (for example: the lower side of the left half screen and
  • one-screen multi-display can be realized by the image rearrangement and the matching design of the active grating in the separation module.
  • Example 2
  • the embodiment provides a dual-view display device.
  • the difference between this embodiment and the embodiment 1 is that the relative positions of the twisted nematic liquid crystal cell and the liquid crystal display are different in this embodiment, and the setting position of the processing module is changed.
  • the separation module 33 is disposed on a side of the display panel 3 facing away from the viewer, that is, the twisted nematic liquid crystal cell is disposed adjacent to the array substrate such that the third polarizing plate is located away from the liquid crystal layer, and the polarization direction of the third polarizing plate is The polarization directions of the first polarizers are the same.
  • the encoding process is performed by the processing module 4 based on the video stream provider 5, and the twisted column is used as the active raster to the liquid crystal cell, and the comparison module 34 recognizes After the video source is two video streams, it sends an enable signal to the active raster to switch to dual view mode.
  • Example 3 The other structures of the dual-view display device and the method for realizing the dual-view display in this embodiment are the same as those in the first embodiment, and are not described herein again.
  • Example 3
  • the display screen in this embodiment is an OLED display device.
  • a conventional OLED device can be used, and a polarizing plate is additionally disposed on both sides thereof, and the polarization direction of the polarizing plate is matched with the polarization direction of the polarizing plate in the separation module to realize separation of the display image.
  • the other structures of the dual-view display device and the method for realizing the dual-view display in this embodiment are similar to those of the embodiment 1 or 2, and are not described herein again.
  • the display device in the present invention may be: a liquid crystal panel, an electronic paper, an OLED panel, a mobile phone, a tablet computer, a television, a display, a notebook computer, a digital photo frame, a navigator, etc., and any product or component having a display function, and can be used
  • the corresponding dual view display method realizes dual view display in the above display device.
  • a video signal source is formed by pre-coding two video streams provided by the same video stream provider, and the video signal source is converted from a DVI format signal into an LVDS format signal, and then input and displayed in a single channel form. Screen; and with the separation module, thus achieving dual field of view display.
  • two video streams are provided by the same video stream provider, and can be pre-coded in the video stream provider or the driving circuit of the display panel, so that the cumbersomeness of the video signal source transmission is greatly reduced, and the double vision is made.
  • the structure of the display device is simpler.

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Abstract

一种显示装置和显示方法，所述显示装置包括显示面板和视频流提供器，显示面板包括显示屏和分离模块，其中，所述视频流提供器提供一个或两个视频流，在所述一个或两个视频流进入所述显示屏之前经过编码处理以形成一个视频信号源，且所述视频信号源以单通道形式输入所述显示屏，以及当所述视频流提供器提供两个视频流时，所述分离模块将所述显示屏中显示的画面分离成各自针对所述两个视频流之一的两个图像画面以实现双视显示。通过由同一视频流提供器提供两个视频流，可以在视频流提供器中或驱动电路中预先进行编码，使得视频信号源传输的繁琐性大大降低，使得双视显示装置的结构更简单。

Description

显示装置以及显示方法 技术领域
本发明属于显示技术领域，具体涉及显示装置以及显示方法。 背景技术
随着显示技术的发展， 近几年出现了双视（也称双视场） 显 示装置。 双视显示是一种随视觉角度变换而从同一显示屏中看到 两个画面内容的新技术， 即一屏双显模式， 例如： 在汽车中， 驾 驶员看到的是导航信息和各种驾驶提示信息， 副驾座位上的乘客 看到的是体育、 时尚或娱乐等其他节目； 或者， 在家庭生活中， 多个家庭成员可以通过一台电视机观看到不同节目的图像画面。 这种人性化的 "双视" 功能很好地满足了汽车乘客和家庭成员对 信息内容的不同要求。 当然， 如果大家都想看同一内容的图像画 面， 也可以随时调整为正常模式。
传统的双视显示装置所釆用的用于双视场显示的两个视频信 号分别来自两个相互独立的信号源， 例如如图 1的输入端 1所示， 车用 PC (输入 A )和车载 DVD (输入 B )各自提供一个视频流， 并 分别各通过一根信号线连接至处理器 2，处理器 2对这两个视频流 进行图像同步、 图像重排等编码处理， 然后将编码处理后的视频 流馈送至显示屏 l ( 2VF Sc reen ) 以进行双视场显示。 其中， 对 两个视频流进行处理的处理器 2独立于显示屏 32、车用 PC和车载 DVD。
但是目前这种实现双视显示的技术仅限于利用两个独立的信 号源来实现， 并且对来自这两个信号源的视频信号进行处理以实 现双视显示的处理部件是位于这两个信号源外部的部件， 因此现 有技术中实现双视显示的系统结构复杂， 占用空间大， 并且操作 起来不方便， 另外， 这两个信号源的视频信号分别经过各自的通 道传输到显示屏已进行显示， 从而导致视频信号的传输复杂。 因 此期望对现有的实现双视显示的构造进行改进， 从而能够利用一 台播放设备（例如 PC ) 实现双视显示。 发明内容 足， 提供一种双视显示装置以及双视显示方法， 使得双视显示易 于实现且视频信号源传输的繁瑣性大大降低。
解决本发明技术问题所釆用的技术方案是一种双视显示装 置， 其包括显示面板和视频流提供器， 所述显示面板包括显示屏 和分离模块， 其中， 所述视频流提供器提供一个或两个视频流， 在所述一个或两个视频流进入所述显示屏之前经过编码处理以形 成一个视频信号源， 且所述视频信号源以单通道形式输入所述显 示屏， 以及当所述视频流提供器提供两个视频流时， 所述分离模 块将所述显示屏中显示的画面分离成各自针对所述两个视频流之 一的两个图像画面以实现双视显示。
优选地， 所述分离模块设置于所述显示面板的靠近观众的一 侧或远离观众的一侧。
优选地， 显示面板还包括比较模块， 所述比较模块的输入端 与所述视频流提供器的输出端连接， 所述比较模块的输出端与所 述分离模块的输入端连接， 所述比较模块用于判断所述视频信号 源是否包含两个视频流， 并根据判断结果控制所述分离模块的打 开或关闭。
优选地， 该双视显示装置还包括处理模块， 所述处理模块用 于将两个视频流进行编码处理以形成所述视频信号源， 其中所述 编码处理包括图像重排或图像穿插。
优选地， 所述处理模块内设于所述视频流提供器中； 或者， 所述显示面板还包括与所述显示屏电连接的驱动电路， 所述处理 模块内设于所述驱动电路中。
优选地， 所述驱动电路还包括信号转换模块， 所述信号转换 模块用于将其接收的编码处理后的所述视频信号源进行信号格式 转换， 并输入至所述显示屏。 优选地， 所述处理模块输出的信号格式为 DVI， 输入至所述 显示屏的信号格式为 LDVS， 所述信号转换模块将所述 DVI信号转 换为所述 LDVS信号。
优选地， 所述分离模块为可控的主动式光栅。
优选地， 所述主动式光栅为扭曲向列液晶盒， 所述显示屏和 所述扭曲向列液晶盒中设置有相匹配的偏振片。
优选地， 所述显示屏以区域性间隔的方式来显示各自针对两 个视频流之一的两个图像画面， 所述区域性间隔的方式包括行区 域性间隔的方式、 列区域性间隔的方式和块区域性间隔的方式。
解决本发明技术问题所釆用的技术方案是一种显示方法， 其 包括：
提供一个或两个视频流；
将所述一个或两个视频流进行编码处理以形成一个视频信号 源；
所述视频信号源以单通道形式输入至显示屏以进行显示。 优选地， 该显示方法还包括： 在所述视频信号源输入至所述 显示屏之前， 或者在所述视频信号源输入至所述显示屏之后判断 是否对将要显示在所述显示屏上的画面进行分离以实现双视显 示。
优选地， 由同一个视频流提供器提供所述一个或两个视频流， 并且在所述视频流提供器中进行所述一个或两个视频流的编码处 理； 或者， 在显示屏的驱动电路中进行所述一个或两个视频流的 编码处理。
优选地， 所述视频信号源以单通道形式输入至所述显示屏， 具体包括： 所述视频信号源经过信号格式转换， 将转换格式后的 所述视频信号源输入至所述显示屏。
优选地， 该显示方法还包括：
判断所述视频信号源是否包含两个视频流；
当判断所述视频信号源包含两个视频流时， 分离所述显示屏 中显示的画面以实现双视显示； 以及 当判断所述视频信号源包含单个视频流时， 保持显示所述显 示展中的画面。
本发明的有益效果是： 通过将两个视频流在输入显示屏之前 预先进行编码处理形成视频信号源， 然后以单通道形式输入显示 屏； 同时， 根据视频信号源的性质判断是否对显示屏中的显示画 面进行分离， 从而进行双视场显示。 本发明中， 由同一视频流提 供器提供两个视频流， 且可以在视频流提供器中或驱动电路中预 先进行编码， 使得视频信号源传输的繁瑣性大大降低， 且使得双 视显示装置的结构更简单。 附图说明
图 1为现有技术中双视显示装置的结构示意图；
图 2为本发明实施例 1中双视显示装置的结构示意图； 图 3为本发明实施例 1中分离模块进行画面分离的示意图； 图 4为本发明实施例 1中实现双视显示的流程示意图； 图 5为本发明实施例 1中双视显示装置的结构示意图； 图 6为本发明实施例 1中双视显示图像画面的示意图。 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双视显示装置以及双视显示方法 作进一步详细描述。 实施例 1 :
如图 2所示， 本实施例提供了一种双视显示装置， 其包括显 示面板 3， 显示面板 3 包括显示屏 32， 该双视显示装置还包括视 频流提供器 5， 该视频流提供器 5用于提供两个视频流， 这两个视 频流在被输入至显示屏 32 之前经编码处理形成为一个视频信号 源， 然后该视频信号源以单通道形式输入至显示屏 32。 在本实施 例中， 单通道可理解为一条数据传输线。 在该双视显示装置中， 显示面板 3还包括分离模块 33， 分离 模块 33设置于显示面板 3靠近观众的一侧， 分离模块 33用于将 要在显示屏 32中显示的针对两个视频流的画面进行分离， 以实现 双视显示， 在该实施例中， 分离模块 33釆用光栅结构， 并将在下 文中对其进行描述。 当视频信号源被输入至显示屏 32时， 显示屏
32以特定形式显示画面； 显示画面经分离模块 33分离后， 在显示 面板 3 中显示分别针对上述两个视频流的两个图像画面。 在本实 施例中， 观众以棵眼方式观看显示画面， 观看到的显示画面为显 示面板 3中显示的两个图像画面，这是由显示屏 32与分离模块 33 协作实现的。
为解决双视显示技术中信号源传输的繁瑣性，在本实施例中， 两个视频流以视频信号源的形式通过单通道输入至显示屏 32 ; 同 时优选地， 两个视频流由同一视频流提供器 5提供， 以适应双视 显示技术的播放需求， 两个视频流经处理模块 4预先进行编码处 理， 编码处理包括图像重排或图像穿插。 在本实施例中， 显示屏
32为液晶显示屏， 双视显示装置还包括与液晶显示屏电连接的驱 动电路 31， 处理模块 4设置于驱动电路 31中， 处理模块 4的输出 端与液晶显示屏的输入端连接。
其中， 在处理模块 4对不同的两个视频流进行混编时， 根据 显示屏 32的像素结构、 分离模块 33的光栅的开口大小、 图像重 排的方式以及观看距离等因素来综合考虑釆用适当的混编规则。 对于混编后的视频流文件， 可以通过在视频流文件头中加入特殊 标记， 通过该特殊标记来方便后续处理过程中， 识别是否为经混 编后的包含多个视频流的视频信号源。 相应的， 显示屏 32以区域 性间隔的方式显示针对两个视频流的两个图像画面， 区域性间隔 的方式包括行区域性间隔的方式、 列区域性间隔的方式或块区域 性间隔的方式。 即， 在显示屏 32中， 针对每个视频流的图像画面 都以区域性间隔方式进行显示， 即呈横向多条状间隔、 纵向多条 状间隔或多个块状的形式进行显示， 显示精度优选为像素级别。 通过该实施例的显示方式， 利用图像的合成机制， 可以在不必缩 小针对每一视频流显示的整体图像画面的尺寸的情况下， 使得观 众能以较大的视角范围获得良好的观看效果。
在本实施例中， 驱动电路 31还包括信号转换模块（图 2中未 示出） ， 用于将其接收的编码处理后的视频信号源进行信号格式 转换， 并输入至显示屏 32。 其中， 视频信号源以 DVI ( Di g i ta l
V i sua l Interface , 简称数字视频接口） 信号格式从处理模块 4 输出至信号转换模块， 并经该信号转换模块进行格式转换后以 LVDS ( Low-Vo l tage Di f ferent ia l S i gna l ing , 简称低电压差分 信号））信号格式输入显示屏 32，信号转换模块将 DVI信号转换为 LDVS信号。 DVI 是数字信号传输的视频接口， 可将数字信号不加 转换地直接传输到显示屏中， 节省了 D-A-D (数-模-数 )的转换过 程， 因此， DVI接口具有速度快、 画面清晰、 便于升级等优点。 但 是， 因为 DVI不能直接驱动显示屏 32中的时序控制器， 所以， 常 规的视频流， 例如： VGA格式或 TMDS格式的信号输入显示面板后， 必须转换成 LVDS格式的信号。
双视显示装置还包括比较模块 34， 比较模块 34 的输入端与 视频流提供器 5的输出端连接， 比较模块 34的输出端与分离模块 33的输入端连接，比较模块 34用于判断视频信号源是否为两个视 频流， 并根据判断结果控制分离模块 33的打开或关闭： 当比较模 块 34判断视频信号源为两个视频流时，打开分离模块 33， 进行画 面的分离以实现双视显示。 在本实施例中， 分离模块 33为可控的 主动式光栅。 具体的， 分离模块 33可以为扭曲向列液晶盒， 由于 扭曲向列液晶的可控性， 使得扭曲向列液晶盒相当于一个主动式 光栅， 可对通过其中的光进行调节。
液晶显示屏和扭曲向列液晶盒中各自设置有相匹配的偏振 片。 具体的， 液晶显示屏包括对盒设置的阵列基板和彩膜基板， 阵列基板和彩膜基板之间设置有液晶层， 阵列基板和彩膜基板的 相对外侧各设置有一片偏振片， 例如： 阵列基板的外侧设置有第 一偏振片， 彩膜基板的外则侧设置有第二偏振片， 第一偏振片与 第二偏振片的偏振方向正交。 扭曲向列液晶盒包括分设在两侧的 基板以及设置于两基板之间的扭曲向列液晶层， 扭曲向列液晶盒 还至少设置有第三偏振片， 第三偏振片的偏振方向与第一偏振片 或第二偏振片的偏振方向相同。 釆用两种偏振方向， 可以降低偏 振光之间的串扰， 提高图像的显示效果。
为提高双视显示装置的集成度， 减少双视显示装置中偏振片 的数量， 扭曲向列液晶盒中设置的第三偏振片， 可以设置在扭曲 向列液晶盒的任一侧， 但该第三偏振片的偏振方向和液晶显示屏 中与其较为靠近的阵列基板或彩膜基板侧设置的偏振片的偏振方 向相同。 例如， 在本实施例中， 分离模块 33设置于显示面板靠近 观众的一侧， 即将扭曲向列液晶盒设置于靠近彩膜基板且使得第 三偏振片位于远离液晶层的一侧， 则第三偏振片的偏振方向与第 二偏振片的偏振方向相同。 图 3 为扭曲向列液晶盒以列区域性间 隔方式为示例进行视频的穿插处理的示意图。 在同一时刻， 在扭 向， 使得对应位置的液晶显示屏显示的画面以列区域性间隔的方 式分别进行显示， 从而使得在不同的观众能分别看到不同的图像 画面。
相对现有技术中的双视显示装置， 本实施例中的双视显示装 置整合了提供视频信号的装置， 将现有技术中的通常提供两个视 频流的两个装置集成为一个装置， 从而减少了一个视频流输入端 1， 并减少独立的处理器 2， 而将其功能用集成在显示屏中的处理 模块 4来代替， 这样不仅可以大大緩解视频信号源传输的繁瑣性， 还节省了空间。
相应的， 本实施例提供一种双视显示方法， 包括：
步骤 S1 ) : 同一视频流提供器提供两个视频流。
本实施例中， 一个应用为： 在车用 PC (作为视频流提供器 5 ) 的主机界面同时打开两个播放器 （例如暴风影音、 醫 P播放器） ， 在车用 PC的主机界面的视频窗口的左侧和右侧分布并同时播放。 由于两个视频流经处理模块预先进行视频流编码， 因此不用考虑 视频信号本身的特性， 只需要视频流提供器 5 (本实施例中为车用 PC ) 中两个软件播放器能够播放， 并且车用 PC的视频窗口能按照 显示装置屏幕的画面显示比例播放即可。
步骤 S 2 ) ： 将一个或两个视频流进行编码处理以形成一个视 频信号源。
本实施例中， 将由同一视频流提供器 5提供的一个或两个播 放器播放的视频输入驱动电路 31， 在驱动电路 31 的处理模块 4 中进行两个视频流的编码处理以形成一个视频信号源。
步骤 S 3 ) ： 视频信号源以单通道形式输入至显示屏以进行显 示。
在本实施例中， 视频信号源以单通道形式输入至显示屏 32， 具体包括： 将编码处理后的视频信号源经信号转换模块进行信号 格式转换， 将转换格式后的视频信号源以 LVDS格式输入至显示屏 32。
其中， 可以在视频信号源输入至显示屏之前， 或者在视频信 号源输入至显示屏之后判断是否对画面进行分离以实现双视显 示。 具体的， 如图 4 中实现双视显示的流程所示， 先判断视频信 号源是否为两个视频流； 当判断视频信号源包含两个视频流时， 分离显示屏 32中显示的画面以实现双视显示， 即双视模式； 当判 断视频信号源包含单个视频流时， 保持显示屏 32中的画面显示， 即正常模式。
具体的工作过程为： 液晶显示屏中的液晶层在电场作用下发 生偏转， 实现图像的显示； 同时， 比较模块 34接收处理模块 4的 视频流信号并进行判断， 当视频信号源为两个视频流时， 比较模 块 34执行控制以使得扭曲向列液晶盒中的液晶发生偏转， 从而将 图像画面分离为显示在液晶显示屏的不同区域的分别针对两个不 同视频流的两种图像画面， 即将液晶显示屏中的显示画面进行分 离， 从而使得观众能从不同的视角观看到不同内容的图像画面。 例如，液晶显示屏（这里即 2VF Sc r een )的显示分辨率为 800 * 6 00， 当车用 PC的主机界面同时打开两个播放器时， 将每个播放器的显 示屏横竖比设置为 2 : 3 ( 4 00 : 600 ) ， 在显示装置屏幕的左半屏和 右半屏分别进行播放， 如图 6 所示。 实际上， 此处的显示方式为 前述的块区域性间隔的显示方式的一个示例。
这里应该理解的是， 本实施例中的液晶显示屏可以根据需要 划分为多个显示区， 本实施例中两个视频流可以显示在设定的显 示区 （例如： 左半屏幕的下侧和右半平面的上侧） ； 进一步的， 可以在本实施例双视显示的基础上， 通过图像重排以及分离模块 中主动式光栅的匹配设计， 实现一屏多显。 实施例 2 :
本实施例提供一种双视显示装置， 该实施例与实施例 1 的区 别在于， 本实施例中扭曲向列液晶盒与液晶显示屏的相对位置不 同， 且处理模块的设置位置发生了改变。
本实施例提供的双视显示装置中， 如图 5所示， 在视频流提 供器 5中进行两个视频流的编码处理。 并且， 分离模块 33设置于 显示面板 3 背向观众的一侧， 即扭曲向列液晶盒设置于靠近阵列 基板且使得第三偏振片位于远离液晶层的一侧， 第三偏振片的偏 振方向与第一偏振片的偏振方向相同。
同理， 在本实施例中， 参考图 4 的流程， 通过基于视频流提 供器 5的处理模块 4进行编码处理， 并搭配作为主动式光栅的扭 曲列向液晶盒， 在比较模块 34在识别出视频信号源为两个视频流 后， 其向主动式光栅发送一个开启信号， 以切换到双视模式。
本实施例中双视显示装置的其他结构、 实现双视显示的方法 均与实施例 1相同， 这里不再赘述。 实施例 3 :
本实施例与实施例 1和 2的区别在于， 本实施例中的显示屏 为 0LED显示器件。
在本实施例中， 可以釆用常规的 0LED器件， 在其两侧分别额 外设置偏振片， 并使得偏振片的偏振方向与分离模块中的偏振片 的偏振方向相配合， 以实现显示画面的分离。 本实施例中双视显示装置的其他结构、 实现双视显示的方法 均与实施例 1或 2相似， 这里不再赘述。 本发明中的显示装置可以为： 液晶面板、 电子纸、 0LED面板、 手机、 平板电脑、 电视机、 显示器、 笔记本电脑、 数码相框、 导 航仪等任何具有显示功能的产品或部件， 并可以釆用相应的双视 显示方法在上述显示装置中实现双视显示。 本发明中， 通过将同一视频流提供器提供的两个视频流预先 进行编码处理形成视频信号源， 并将视频信号源从 DVI 格式的信 号转换成 LVDS格式的信号， 然后以单通道形式输入显示屏； 并配 合分离模块， 从而实现双视场显示。 本发明中， 由同一视频流提 供器提供两个视频流， 且可以在视频流提供器中或显示面板的驱 动电路中预先进行编码， 使得视频信号源传输的繁瑣性大大降低， 且使得双视显示装置的结构更简单。
而釆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

权利要求书
1. 一种显示装置， 包括显示面板和视频流提供器， 所述显示 面板包括显示屏和分离模块， 其特征在于，
所述视频流提供器提供一个或两个视频流， 在所述一个或两 个视频流进入所述显示屏之前经过编码处理以形成一个视频信号 源， 且所述视频信号源以单通道形式输入所述显示屏， 以及
当所述视频流提供器提供两个视频流时， 所述分离模块将所 述显示屏中显示的画面分离成各自针对所述两个视频流之一的两 个图像画面以实现双视显示。
2. 根据权利要求 1所述的显示装置， 其特征在于， 所述分离 模块设置于所述显示面板的靠近观众的一侧或远离观众的一侧。
3. 根据权利要求 2所述的显示装置， 其特征在于， 所述显示 面板还包括比较模块， 所述比较模块的输入端与所述视频流提供 器的输出端连接， 所述比较模块的输出端与所述分离模块的输入 端连接， 所述比较模块用于判断所述视频信号源是否包含两个视 频流， 并根据判断结果控制所述分离模块的打开或关闭。
4. 根据权利要求 2所述的显示装置， 其特征在于， 还包括处 理模块， 所述处理模块用于将两个视频流进行编码处理以形成所 述视频信号源， 其中所述编码处理包括图像重排或图像穿插。
5. 根据权利要求 4所述的显示装置， 其特征在于， 所述处理 模块内设于所述视频流提供器中； 或者， 所述显示面板还包括与 所述显示屏电连接的驱动电路， 所述处理模块内设于所述驱动电 路中。
6. 根据权利要求 5所述的显示装置， 其特征在于， 所述驱动 电路还包括信号转换模块， 所述信号转换模块用于将其接收的编 码处理后的所述视频信号源进行信号格式转换， 并输入至所述显 示屏。
7. 根据权利要求 6所述的显示装置， 其特征在于， 所述处理 模块输出的信号格式为 DVI， 输入至所述显示屏的信号格式为 LDVS , 所述信号转换模块将所述 DVI信号转换为所述 LDVS信号。
8. 根据权利要求 2所述的显示装置， 其特征在于， 所述分离 模块为可控的主动式光栅。
9. 根据权利要求 8所述的显示装置， 其特征在于， 所述主动 式光栅为扭曲向列液晶盒， 所述显示屏和所述扭曲向列液晶盒中 设置有相匹配的偏振片。
10. 根据权利要求 1-9任一项所述的显示装置，其特征在于， 所述显示屏以区域性间隔的方式来显示各自针对两个视频流之一 的两个图像画面，
式、 列区域性间隔的方式和块区域性间隔的方式（
11. 一种显示方法， 其特征在于， 包括：
提供一个或两个视频流；
将所述一个或两个视频流进行编码处理以形成一个视频信号 源；
所述视频信号源以单通道形式输入至显示屏以进行显示； 以 及
当所述视频信号源包含两个视频流时， 将所述显示屏中显示 的画面分离成各自针对两个视频流之一的两个图像画面以实现双 视显示。
12. 根据权利要求 11所述的显示方法，其特征在于，还包括： 在所述视频信号源输入至所述显示屏之前， 或者在所述视频信号 源输入至所述显示屏之后判断是否对将要显示在所述显示屏上的 画面进行分离以实现双视显示。
13. 根据权利要求 11所述的显示方法， 其特征在于， 由同一 个视频流提供器提供所述一个或两个视频流， 并且在所述视频流 提供器中进行所述一个或两个视频流的编码处理； 或者， 在所述 显示屏的驱动电路中进行所述一个或两个视频流的编码处理。
14. 根据权利要求 11所述的显示方法， 其特征在于， 所述视 频信号源以单通道形式输入至所述显示屏， 具体包括： 所述视频 信号源经过信号格式转换， 将转换格式后的所述视频信号源输入 至所述显示屏。
15. 根据权利要求 12所述的显示方法，其特征在于，还包括： 判断所述视频信号源是否包含两个视频流；
当判断所述视频信号源包含两个视频流时， 分离所述显示屏 中显示的画面以实现双视显示； 以及
当判断所述视频信号源包含一个视频流时， 保持显示所述显 示展中的画面。
PCT/CN2014/082052 2013-12-27 2014-07-11 显示装置以及显示方法 WO2015096457A1 (zh)

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