WO2015100806A1 - 一种三维液晶显示装置及快门眼镜和快门眼镜的控制方法 - Google Patents

一种三维液晶显示装置及快门眼镜和快门眼镜的控制方法 Download PDF

Info

Publication number
WO2015100806A1
WO2015100806A1 PCT/CN2014/070754 CN2014070754W WO2015100806A1 WO 2015100806 A1 WO2015100806 A1 WO 2015100806A1 CN 2014070754 W CN2014070754 W CN 2014070754W WO 2015100806 A1 WO2015100806 A1 WO 2015100806A1
Authority
WO
WIPO (PCT)
Prior art keywords
liquid crystal
crystal panel
polarizer
shutter glasses
backlight
Prior art date
Legal status (The legal status 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 status listed.)
Ceased
Application number
PCT/CN2014/070754
Other languages
English (en)
French (fr)
Inventor
金羽锋
何振伟
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
TCL China Star Optoelectronics Technology Co Ltd
Original Assignee
Shenzhen China Star Optoelectronics Technology Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Shenzhen China Star Optoelectronics Technology Co Ltd filed Critical Shenzhen China Star Optoelectronics Technology Co Ltd
Priority to US14/241,807 priority Critical patent/US9513507B2/en
Publication of WO2015100806A1 publication Critical patent/WO2015100806A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

Links

Classifications

    • 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
    • G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
    • G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
    • G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
    • G02B30/24—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type involving temporal multiplexing, e.g. using sequentially activated left and right shutters
    • 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
    • H04N13/332—Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/341—Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using temporal multiplexing
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2310/00—Command of the display device
    • G09G2310/08—Details of timing specific for flat panels, other than clock recovery
    • 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
    • G09G3/36—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

Definitions

  • the present invention relates to a shutter type three-dimensional display technology, and more particularly to a three-dimensional liquid crystal display device and a method of controlling shutter glasses and shutter glasses. Background technique
  • 3D stereoscopic display technology has become one of the important directions for the development of flat panel display devices.
  • the mainstream three-dimensional display technologies on the market are color difference type, polarized type, shutter glass type and naked eye type.
  • the shutter glasses technology has been widely recognized in the market for its outstanding stereoscopic effect, high resolution of the screen and low cost of the liquid crystal module.
  • the shutter glasses technology divides two frames of images into two consecutive images corresponding to the left eye and the right eye, respectively, and displays the two frames of images continuously and alternately on the liquid crystal display device, and synchronously controls the lens switches of the shutter glasses to enable viewing.
  • FIG. 1 it is a schematic structural diagram of a backlight module of a liquid crystal display device using a backlight scanning technology or a backlight flashing technology. As can be seen from FIG.
  • the converter Convertor includes a signal processing module and a voltage current control module, wherein the signal processing module receives a picture refresh signal (shown STV) having a fixed frequency output by the backlight controller CB, and generates a corresponding signal according to the signal.
  • the timing control signal is provided to the voltage current control module, and the voltage current control module outputs a pulse current according to the timing control signal to control the operation of the backlight BL.
  • the backlight scanning is generally divided into eight regions, and the signal processing module in the backlight module converter is required to generate eight different control signals according to the picture refresh signal STV, which are supplied to the voltage current control module. .
  • the signal processing module in the backlight module converter is required to generate a control signal according to the picture refresh signal STV, which is supplied to the voltage current control module. Due to the need to pick For example, the MCU processor is used as the signal processing module to synchronize the control panel scanning with the backlight operation. Therefore, the design of the liquid crystal display device is relatively complicated and costly, resulting in a lack of market competitiveness in terms of price. Summary of the invention
  • the present invention provides a new three-dimensional liquid crystal display device which is simple in structure and low in cost, and a control method of shutter glasses and shutter glasses which cooperate with a three-dimensional liquid crystal display device for three-dimensional display.
  • the invention provides a three-dimensional liquid crystal display device, which comprises:
  • a backlight controller that controls the backlight to be turned on and remains bright during the period in which the panel alternately outputs the left eye image and the right eye image;
  • a transmitting module which outputs a screen refresh signal with a fixed frequency and outputs a backlight activation signal to the shutter glasses when the backlight is turned on, wherein the picture refresh signal alternately corresponds to a left eye image signal and a right eye image signal according to a fixed frequency thereof.
  • the invention also provides a shutter glasses, comprising a controller, the controller comprising: a receiving module, which receives a picture refresh signal and a backlight enable signal with a fixed frequency emitted by the three-dimensional liquid crystal display device, wherein the picture refresh signal is according to the same
  • the fixed frequency alternately corresponds to a left eye image signal and a right eye image signal;
  • a timing module coupled to the receiving module, starting from a moment when the receiving module receives the backlight activation signal, and re-clocking every time a positive trigger of a picture refresh signal is detected;
  • An opening module coupled to the timing module, when the timing module is timed to reach a set timing period, outputting a control signal to control opening of the left eye glasses or the right eye glasses and continuously setting the opening time, wherein the The sum of the chronograph duration and the turn-on time is less than the reciprocal of the fixed frequency, and the order of opening the left and right eyeglasses is consistent with the order of the left and right eye image signals.
  • the opening time is set according to a liquid crystal reaction time of the shutter glasses.
  • the turn-on time is one third of a reciprocal of the fixed frequency.
  • the shutter glasses further include a lens frame, a liquid crystal panel disposed in the frame, and a first polarizer and a second polarizer, wherein the liquid crystal panel includes a normally white liquid crystal panel and a normally black liquid crystal stacked in a stack. a panel, the thickness of the normally black liquid crystal panel is not equal to the thickness of the normally white liquid crystal panel, and the first polarizer is disposed between the normally white liquid crystal panel and the normally black liquid crystal panel.
  • a liquid crystal layer of a normally black liquid crystal panel is disposed between the first polarizer and the second polarizer, and An optical compensation film is disposed between the first polarizer and the liquid crystal layer of the normally black liquid crystal panel and/or between the second polarizer and the liquid crystal layer of the normally black liquid crystal panel to compensate for the The dispersion of the liquid crystal layer of a normally black liquid crystal panel in a dark state.
  • the present invention also provides a method for controlling shutter glasses, including:
  • Receiving receiving a picture refresh signal having a fixed frequency and a backlight enable signal, wherein the picture refresh signal alternately corresponds to a left eye image signal and a right eye image signal according to a fixed frequency thereof;
  • the timing step starts from the time when the backlight start signal is received, and is re-timed every time the positive trigger of the picture refresh signal is detected;
  • the opening step when the timing reaches the set time duration, controlling the left eye glasses or the right eye glasses to be turned on and continuously setting the opening time, wherein the sum of the time duration and the opening time is less than the reciprocal of the fixed frequency, and the left and right eye glasses
  • the order of opening is the same as the order of the left and right eye image signals.
  • the opening time is set according to a liquid crystal reaction time of the shutter glasses.
  • the opening time is one third of a reciprocal of the fixed frequency.
  • the three-dimensional liquid crystal display panel and the shutter glasses proposed by the present invention are framed together to form a new three-dimensional display system, and the backlight module in the three-dimensional liquid crystal display panel is removed between the backlight controller CB and the converter Convertor.
  • the communication connection simplifies the design of the converter Convertor, thereby achieving the independent design of the panel and the backlight and thereby reducing the system cost.
  • FIG. 1 is a schematic view showing the composition of a backlight module of a conventional liquid crystal display device
  • FIG. 2 is a schematic diagram showing the composition of a three-dimensional display system according to an embodiment of the present invention.
  • FIG. 3 is a partial schematic view showing the timing control of the shutter glasses in the system of Figure 2. Specific form
  • the present invention proposes a new three-dimensional display system 100 in which:
  • the backlight in the three-dimensional liquid crystal display device 200 only needs to alternately output the left eye image and the right eye image on the panel.
  • the period is kept constantly, and the three-dimensional liquid crystal display device outputs a picture refresh signal (shown STV) having a fixed frequency to the shutter glasses 300, and outputs a backlight activation signal (illustration En) to the shutter glasses 300 when the backlight is turned on.
  • the picture refresh signal alternately corresponds to a left eye image signal and a right eye image signal according to a fixed frequency f thereof.
  • the shutter glasses 300 receive the picture refresh signal STV and the backlight enable signal En output by the three-dimensional liquid crystal display device 200, and start from the time when the backlight start signal En is received, and re-clock every time the positive source trigger of the picture refresh signal STV is detected.
  • the timing reaches the set time duration Tcount, the left eye glasses or the right eye glasses are controlled to be turned on and the set opening time T 0 pen is continuously maintained.
  • the sum of the chronograph time length Tcount and the turn-on time Topen is less than the reciprocal of the fixed frequency f of the picture refresh signal STV, and the order of opening the left and right eye glasses is consistent with the order of the left and right eye image signals.
  • FIG. 2 it is a schematic structural diagram of a backlight module 210 of a three-dimensional liquid crystal display device 200 according to an embodiment of the present invention. Since the backlight in the three-dimensional liquid crystal display device 200 of the present invention only needs to be kept constantly bright during the alternate output of the left-eye image and the right-eye image of the panel, the converter module of the backlight module 210 does not need to be provided with a signal processing module. Converter Convertor Simply output the appropriate voltage and current through the voltage and current control module to control the backlight (such as LED lights) to continue to open, the internal structure is greatly simplified.
  • the panel and the backlight module can be independently designed, thereby achieving the purpose of reducing design difficulty and manufacturing cost.
  • the three-dimensional liquid crystal display device 200 of the present invention is further provided with a transmitting module 220 for transmitting the screen refresh signal STV output by the backlight controller CB to the shutter glasses 300, and outputting a backlight starting signal when the backlight is turned on. En gives shutter glasses 300.
  • the picture refresh signal STV alternately corresponds to a left eye image signal and a right eye image signal according to its fixed frequency f.
  • the controller 310 includes a receiving module 311, a timing module 312, and an opening module 313.
  • the entire controller 310 can be implemented as a preferred FPGA chip and disposed in the frame of the shutter glasses 300. among them:
  • the receiving module 311 receives the picture refresh signal STV and the backlight enable signal En with a fixed frequency f sent by the three-dimensional liquid crystal display device 200.
  • the timing module 312 is coupled to the receiving module 311.
  • the receiving module 311 receives the backlight activation signal En as a starting point, and re-times every time a positive trigger of a picture refresh signal STV is detected.
  • the opening module 313 is coupled to the timing module 312.
  • the control signal that is, the left eye glasses control signal (the left glass) or the right eye glasses control signal (the figure) is output.
  • Right glass to control the left eye glasses or right eye glasses to open and continue to set the opening time Topen.
  • the above-described controller can be used and disposed on a double-layer shutter glasses, such as the double-layer shutter glasses disclosed in the Chinese Patent Publication No. CN103033987A.
  • the shutter glasses include a lens frame, a liquid crystal panel disposed in the frame, and a first polarizer and a second polarizer, wherein the liquid crystal panel includes a normally white liquid crystal panel and a normally black liquid crystal panel stacked in a stack, The thickness of the normally black liquid crystal panel is not equal to the thickness of the normally white liquid crystal panel, and the first polarizer is disposed between the normally white liquid crystal panel and the normally black liquid crystal panel, the normally black type a liquid crystal layer of the liquid crystal panel is disposed between the first polarizer and the second polarizer, and between the first polarizer and a liquid crystal layer of the normally black liquid crystal panel and/or the An optical compensation film is disposed between the two polarizers and the liquid crystal layer of the normally black liquid crystal panel to compensate for dispersion of the liquid crystal layer of the normally
  • the shutter glasses 300 After the shutter glasses 300 receive the screen refresh signal STV and the backlight activation signal En from the three-dimensional liquid crystal display device 200, the shutter glasses 300 sequentially turn on the left and right eye glasses in sequence to control the timing of the left and right eye glasses.
  • the backlight enable signal En is a high level voltage signal.
  • the timing module 312 starts to start the listening picture refresh signal STV, and re-times every time the positive-source trigger of the picture refresh signal STV is detected.
  • the first timing is started from the positive source trigger point of the first picture refresh signal STV after the arrow corresponding to the high level of the backlight enable signal En, and after each picture refresh signal STV
  • the positive source trigger point begins to re-clock.
  • the opening module 313 When the timing time reaches the set timing period Tcount, that is, at the falling edge of the timing pulse signal, the opening module 313 outputs a left eye glasses control signal or a right eye glasses control signal, and controls the corresponding left eye glasses or right eye glasses to be turned on and continued.
  • the opening time Ton of the left eye glasses and the right eye glasses needs to be determined according to the reaction time of the liquid crystal.
  • the reaction time of different liquid crystals is different, and the turn-on time Ton is also different. This is because of the applied voltage After the liquid crystal cannot be rotated to the desired position immediately, the intermediate period of the liquid crystal reaction is generally taken as the reaction time.
  • the turn-on time Topen can be set longer, so that the brightness becomes large.
  • increasing the turn-on time Topen may deteriorate the three-dimensional effect. Therefore, in consideration of the precondition that the sum of the timing duration Tcount and the turn-on time Topen is smaller than the reciprocal of the fixed frequency f of the screen refresh signal STV,
  • the present invention preferably sets the on time Topen to one third of the reciprocal of the fixed frequency f.
  • the liquid crystal display panel alternately outputs the left eye image and the right eye image according to the picture refresh signal STV (generally left and right)
  • the backlight is turned on and remains on.
  • the shutter glasses alternately open the left eye glasses right eye glasses in the same order, and during each frame image output by the liquid crystal display panel, the corresponding glasses are turned on, so that the image picture and the glasses opening condition are matched, and can be avoided.
  • the left and right eye misalignment thereby avoiding the user's dizziness and discomfort.

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Multimedia (AREA)
  • Signal Processing (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Optics & Photonics (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)
  • Liquid Crystal Display Device Control (AREA)
  • Liquid Crystal (AREA)

Abstract

一种三维液晶显示装置（200）及快门眼镜（300）和快门眼镜的控制方法，三维液晶显示装置包括：控制背光源（BL）开启并在面板交替输出左眼影像和右眼影像期间保持常亮的背光控制器（CB）；输出具有固定频率的画面刷新信号（STV）并于背光源开启时输出背光启动信号（En）的发送模块（220）。快门眼镜包括控制器（310），在控制器的作用下，快门眼镜接收三维液晶显示装置发出的具有固定频率的画面刷新信号和背光启动信号，以收到背光启动信号的时刻为起点，每侦测到一画面刷新信号的正源触发时重新计时，当计时达到设定的计时时长时，控制左眼眼镜或者右眼眼镜开启并持续设定的开启时间，其中计时时长与开启时间之和小于固定频率的倒数，且左右眼眼镜的开启顺序与左右眼影像信号的顺序保持一致。

Description

一种三维液晶显示装置及快门眼镜和快门眼镜的控制方法 技术领域
本发明涉及快门式三维显示技术， 特别是关于一种三维液晶显示装置及快门 眼镜和快门眼镜的控制方法。 背景技术
随着三维显示技术的飞速发展和逐步成熟， 三维立体显示技术成为平面显示 装置发展的重要方向之一。 目前， 市场上主流的三维显示技术有色差式、偏光式、 快门眼镜（shutter glass)式以及裸眼式。 其中， 快门眼镜式技术以其立体效果 突出、 画面分辨率高和液晶模组成本较低等优势得到了市场的广泛认可。 快门眼 镜式技术通过把一帧图像拆为分别对应左眼和右眼的两帧图像， 将这两帧图像在 液晶显示装置上连续交替地显示， 并同步地控制快门眼镜的镜片开关， 使观看者 左右双眼分别在恰当的时间看到相应的左右眼图像， 然后在大脑中将左右眼图像 综合形成具有立体效果的图像。 目前， 现有的快门式三维显示系统中， 液晶显示 装置需要采用背光扫描 （BL Scanning) 技术或者背光闪烁 （BL Bl inking) 技术， 来消除左右眼图像串扰 （crosstalk ) 现象。 在这两种工作模式下， 液晶显示装 置的背光都需要与画面扫描同步， 也即背光源需要根据画面刷新信号同步工作。 如图 1所示， 是现有的采用背光扫描技术或者背光闪烁技术的液晶显示装置的背 光模组的组成结构示意图。 从图 1中可知， 转换器 Convertor包括信号处理模块 和电压电流控制模块， 其中信号处理模块接收背光控制器 CB输出的具有固定频 率的画面刷新信号（图示 STV)， 并根据该信号产生相应的时序控制信号提供给电 压电流控制模块， 电压电流控制模块根据时序控制信号输出脉冲电流， 以控制背 光源 BL 工作。 对于采用背光扫描技术的液晶显示装置而言， 背光扫描通常分为 八区， 需要背光模组转换器中的信号处理模块根据画面刷新信号 STV产生八个不 同的控制信号， 提供给电压电流控制模块。 对于采用背光闪烁技术的液晶显示装 置而言， 虽然背光闪烁不需分区， 但也需要背光模组转换器中的信号处理模块根 据画面刷新信号 STV产生一个控制信号， 提供给电压电流控制模块。 由于需要采 用例如 MCU处理器作为信号处理模块， 以控制面板扫描与背光源工作同步， 因此 液晶显示装置的设计相对复杂且成本较高， 导致价格上缺乏市场竞争力。 发明内容
针对上述问题， 本发明提供了一种新的结构简单且成本较低的三维液晶显示 装置， 以及与三维液晶显示装置配合以进行三维显示的快门眼镜和快门眼镜的控 制方法。
本发明提供一种三维液晶显示装置， 其中包括：
背光控制器， 其控制背光源开启并在面板交替输出左眼影像和右眼影像期间 保持常亮；
发送模块， 其输出具有固定频率的画面刷新信号并于背光源开启时输出背光 启动信号给快门眼镜， 所述画面刷新信号按照其固定频率交替对应于一左眼影像 信号和一右眼影像信号。
本发明还提供一种快门眼镜， 其中包括控制器， 所述控制器包括： 接收模块， 其接收三维液晶显示装置发出的具有固定频率的画面刷新信号和 背光启动信号， 所述画面刷新信号按照其固定频率交替对应于一左眼影像信号和 一右眼影像信号；
计时模块， 其耦接于所述接收模块， 以所述接收模块收到背光启动信号的时 刻为起点， 每侦测到一画面刷新信号的正源触发时重新计时；
开启模块， 其耦接于所述计时模块， 当所述计时模块计时达到设定的计时时 长时， 输出控制信号以控制左眼眼镜或者右眼眼镜开启并持续设定的开启时间， 其中所述计时时长与开启时间之和小于所述固定频率的倒数， 且左右眼眼镜的开 启顺序与左右眼影像信号的顺序保持一致。
进一步地， 所述开启时间根据快门眼镜的液晶反应时间进行设置。
又或者， 所述开启时间为所述固定频率的倒数的三分之一。
优选地， 上述快门眼镜还包括镜框、 设置在所述镜框内的液晶面板以及第一 偏光片和第二偏光片， 其中， 所述液晶面板包括层叠设置的常白型液晶面板和常 黑型液晶面板， 所述常黑型液晶面板的厚度不等于所述常白型液晶面板的厚度， 所述第一偏光片设置在所述常白型液晶面板和所述常黑型液晶面板之间， 所述常 黑型液晶面板的液晶层设置在所述第一偏光片和所述第二偏光片之间， 并且在所 述第一偏光片与所述常黑型液晶面板的液晶层之间和 /或所述第二偏光片与所述 常黑型液晶面板的液晶层之间设置有光学补偿膜， 以补偿所述常黑型液晶面板的 液晶层在暗态时的色散。
此外， 本发明还提供一种快门眼镜的控制方法， 包括：
接收步骤， 接收具有固定频率的画面刷新信号和背光启动信号， 所述画面刷 新信号按照其固定频率交替对应于一左眼影像信号和一右眼影像信号；
计时步骤， 以收到背光启动信号的时刻为起点， 每侦测到一画面刷新信号的 正源触发时重新计时；
开启步骤， 当计时达到设定的计时时长时， 控制左眼眼镜或者右眼眼镜开启 并持续设定的开启时间， 其中所述计时时长与开启时间之和小于固定频率的倒 数， 且左右眼眼镜的开启顺序与左右眼影像信号的顺序保持一致。
进一步地， 上述开启步骤中， 所述开启时间根据快门眼镜的液晶反应时间进 行设置。
又或者，上述开启步骤中，所述开启时间为所述固定频率的倒数的三分之一。 与现有技术相比， 本发明提出的三维液晶显示面板和快门眼镜一起构架成一 种新的三维显示系统， 三维液晶显示面板中的背光模组由于去除背光控制器 CB 与转换器 Convertor之间的通信连接， 且简化了转换器 Convertor的设计， 从而 能够达到面板和背光的独立设计并由此降低系统成本的目的。 附图说明
附图用来提供对本发明的进一步理解， 并且构成说明书的一部分， 与本发明 的实施例共同用于解释本发明， 并不构成对本发明的限制。 在附图中：
图 1是现有的液晶显示装置的背光模组的组成示意图；
图 2是本发明一实施例的三维显示系统的组成示意图；
图 3是图 2所示系统中快门眼镜的时序控制局部示意图。 具体实 式
如图 2所示， 针对前述问题， 本发明提出了一种新的三维显示系统 100， 其 中：
三维液晶显示装置 200中的背光源只需在面板交替输出左眼影像和右眼影像 期间保持常亮， 并且三维液晶显示装置输出具有固定频率的画面刷新信号 （图示 STV) 给快门眼镜 300， 以及在背光源开启时输出背光启动信号 （图示 En) 给快 门眼镜 300。 所述画面刷新信号按照其固定频率 f 交替对应于一左眼影像信号和 一右眼影像信号。
快门眼镜 300接收三维液晶显示装置 200输出的画面刷新信号 STV和背光启 动信号 En， 并以收到背光启动信号 En的时刻为起点， 每侦测到一画面刷新信号 STV的正源触发时重新计时， 当计时达到设定的计时时长 Tcount时， 控制左眼眼 镜或者右眼眼镜开启并持续设定的开启时间 T0pen。其中， 计时时长 Tcount与开 启时间 Topen之和小于画面刷新信号 STV的固定频率 f 的倒数， 且左右眼眼镜的 开启顺序与左右眼影像信号的顺序保持一致。
为使本发明的目的、 技术方案和优点更加清楚， 以下结合附图和实施例对本 发明的三维液晶显示装置和快门眼镜及其相互作用关系做进一步描述。
如图 2所示，是根据本发明一实施例的三维液晶显示装置 200的背光模组 210 的组成结构示意图。 由于本发明三维液晶显示装置 200中的背光源只需在面板交 替输出左眼影像和右眼影像期间保持常亮，因此背光模组 210的转换器 Convertor 中无需再设置信号处理模块， 转换器 Convertor只需通过电压电流控制模块输出 合适的电压电流， 以控制背光源 （例如 LED灯） 持续开启， 内部结构得以大幅度 地简化。 同时， 由于转换器 Convertor无需再与输出画面刷新信号 STV的背光控 制器 CB通信连接， 因此面板和背光模组可以独立设计， 从而能够达到降低设计 难度和制造成本的目的。 此外， 本发明的三维液晶显示装置 200还设置有一发送 模块 220，该发送模块 220用于将背光控制器 CB输出的画面刷新信号 STV发送给 快门眼镜 300， 以及在背光源开启时输出背光启动信号 En给快门眼镜 300。 如前 所述， 画面刷新信号 STV按照其固定频率 f交替对应于一左眼影像信号和一右眼 影像信号。
如图 2所示， 是根据本发明一实施例的快门眼镜 300的控制器 310的组成结 构示意图。 从图 2中可知， 该控制器 310包括接收模块 311、 计时模块 312和开 启模块 313。整个控制器 310可以优选 FPGA芯片来实现， 设置于快门眼镜 300的 框架中。 其中：
接收模块 311， 其接收三维液晶显示装置 200发出的具有固定频率 f 的画面 刷新信号 STV和背光启动信号 En。 计时模块 312， 其耦接于接收模块 311， 以接收模块 311收到背光启动信号 En的时刻为起点， 每侦测到一画面刷新信号 STV的正源触发时重新计时。
开启模块 313， 其耦接于计时模块 312， 当计时模块 312计时达到设定的计 时时长 Tcount时， 输出控制信号， 即左眼眼镜控制信号（图示 Left glass) 或者 右眼眼镜控制信号（图示 Right glass) , 以控制左眼眼镜或者右眼眼镜开启并持 续设定的开启时间 Topen。
优选地， 上述控制器可以用于并设置在一种双层快门眼镜上， 例如设置在中 国专利文献（申请公开号 CN103033987A) 中公开的双层快门眼镜上。 该快门眼镜 包括镜框、 设置在所述镜框内的液晶面板以及第一偏光片和第二偏光片， 其中， 所述液晶面板包括层叠设置的常白型液晶面板和常黑型液晶面板， 所述常黑型液 晶面板的厚度不等于所述常白型液晶面板的厚度， 所述第一偏光片设置在所述常 白型液晶面板和所述常黑型液晶面板之间， 所述常黑型液晶面板的液晶层设置在 所述第一偏光片和所述第二偏光片之间， 并且在所述第一偏光片与所述常黑型液 晶面板的液晶层之间和 /或所述第二偏光片与所述常黑型液晶面板的液晶层之间 设置有光学补偿膜， 以补偿所述常黑型液晶面板的液晶层在暗态时的色散。
如图 3所示， 是上述快门眼镜 300在接收到三维液晶显示装置 200发出的画 面刷新信号 STV和背光启动信号 En后， 按照左右眼影像信号顺序开启左右眼眼 镜的时序控制局部示意图。在此实施例中，画面刷新信号 STV的固定频率 f=120Hz， 即每隔 8. 3ms三维液晶显示面板交替输出一帧左眼影像和一帧右眼影像。 背光启 动信号 En为一高电平电压信号。 当接收模块 311收到高电平的背光启动信号 En 时，计时模块 312开始启动侦听画面刷新信号 STV，每侦测到一画面刷新信号 STV 的正源触发时重新计时。 如图 3所示， 第一次计时是从背光启动信号 En的高电 平所对应的箭头后的第一个画面刷新信号 STV的正源触发点开始， 并且在之后每 一个画面刷新信号 STV的正源触发点都开始重新计时。 在此实施例中， 计时模块 312 输出计时脉冲信号， 其脉冲宽度为设定的计时时长 Tcount , 约为 8. 3ms / 3=2. 77ms。 当计时时间达到设定的计时时长 Tcount , 也即在计时脉冲信号的下降 沿， 开启模块 313输出左眼眼镜控制信号或者右眼眼镜控制信号， 控制相应的左 眼眼镜或者右眼眼镜开启并持续设定的开启时间 Topen, 约为 8. 3ms I 3=2. 77ms 0 具体实施时， 左眼眼镜和右眼眼镜的开启时间 Topen需要根据液晶的反应时 间决定。 不同液晶的反应时间不同， 开启时间 Topen也不同。 这是因为施加电压 后液晶无法马上转动到预期的位置， 一般将液晶反应过程中的中间一段时间作为 反应时间。 如果液晶反应时间快， 则相应地可以将开启时间 Topen设置较长， 从 而使亮度变大。 但在相同的液晶反应条件下， 增加开启时间 Topen会使三维效果 变差， 因此， 考虑到需要满足计时时长 Tcount与开启时间 Topen之和小于画面 刷新信号 STV的固定频率 f 的倒数的前提条件， 本发明优选地将开启时间 Topen 设定为固定频率 f 的倒数的三分之一。
如图 3所示， 当液晶显示面板根据画面刷新信号 STV交替输出左眼影像和右 眼影像期间 （一般先左后右）， 背光开启并保持常亮。 相应地， 快门眼镜按照相 同的顺序交替地开启左眼眼镜右眼眼镜， 且在液晶显示面板输出的每一帧影像期 间， 对应的眼镜开启， 使得影像画面和眼镜开启情况相匹配， 而且能够避免左右 眼错位现象， 进而避免使用者产生昏眩及不适的情况。
以上所述， 仅为本发明较佳的具体实施方式， 但本发明的保护范围并不局限 于此， 任何熟悉该技术的人员在本发明所揭露的技术范围内， 可轻易想到的变化 或替换， 都应涵盖在本发明的保护范围之内。 因此， 本发明的保护范围应该以权 利要求的保护范围为准。

Claims

权利要求书
1、 一种三维液晶显示装置， 其中包括：
背光控制器， 其控制背光源开启并在面板交替输出左眼影像和右眼影像期间 保持常亮；
发送模块， 其输出具有固定频率的画面刷新信号并于背光源开启时输出背光 启动信号给快门眼镜， 所述画面刷新信号按照其固定频率交替对应于一左眼影像 信号和一右眼影像信号。
2、 一种快门眼镜， 其中包括控制器， 所述控制器包括：
接收模块， 其接收三维液晶显示装置发出的具有固定频率的画面刷新信号和 背光启动信号， 所述画面刷新信号按照其固定频率交替对应于一左眼影像信号和 一右眼影像信号；
计时模块， 其耦接于所述接收模块， 以所述接收模块收到背光启动信号的时 刻为起点， 每侦测到一画面刷新信号的正源触发时重新计时；
开启模块， 其耦接于所述计时模块， 当所述计时模块计时达到设定的计时时 长时， 输出控制信号以控制左眼眼镜或者右眼眼镜开启并持续设定的开启时间， 其中所述计时时长与开启时间之和小于所述固定频率的倒数， 且左右眼眼镜的开 启顺序与左右眼影像信号的顺序保持一致。
3、 如权利要求 2所述的快门眼镜， 其中：
所述开启时间根据快门眼镜的液晶反应时间进行设置。
4、 如权利要求 2所述的快门眼镜， 其中：
所述开启时间为所述固定频率的倒数的三分之一。
5、 如权利要求 2 所述的快门眼镜， 还包括镜框、 设置在所述镜框内的液晶 面板以及第一偏光片和第二偏光片， 其中：
所述液晶面板包括层叠设置的常白型液晶面板和常黑型液晶面板， 所述常黑 型液晶面板的厚度不等于所述常白型液晶面板的厚度， 所述第一偏光片设置在所 述常白型液晶面板和所述常黑型液晶面板之间， 所述常黑型液晶面板的液晶层设 置在所述第一偏光片和所述第二偏光片之间， 并且在所述第一偏光片与所述常黑 型液晶面板的液晶层之间和 /或所述第二偏光片与所述常黑型液晶面板的液晶层 之间设置有光学补偿膜， 以补偿所述常黑型液晶面板的液晶层在暗态时的色散。
6、 如权利要求 3 所述的快门眼镜， 还包括镜框、 设置在所述镜框内的液晶 面板以及第一偏光片和第二偏光片， 其中：
所述液晶面板包括层叠设置的常白型液晶面板和常黑型液晶面板， 所述常黑 型液晶面板的厚度不等于所述常白型液晶面板的厚度， 所述第一偏光片设置在所 述常白型液晶面板和所述常黑型液晶面板之间， 所述常黑型液晶面板的液晶层设 置在所述第一偏光片和所述第二偏光片之间， 并且在所述第一偏光片与所述常黑 型液晶面板的液晶层之间和 /或所述第二偏光片与所述常黑型液晶面板的液晶层 之间设置有光学补偿膜， 以补偿所述常黑型液晶面板的液晶层在暗态时的色散。
7、 如权利要求 4所述的快门眼镜， 还包括镜框、 设置在所述镜框内的液晶 面板以及第一偏光片和第二偏光片， 其中：
所述液晶面板包括层叠设置的常白型液晶面板和常黑型液晶面板， 所述常黑 型液晶面板的厚度不等于所述常白型液晶面板的厚度， 所述第一偏光片设置在所 述常白型液晶面板和所述常黑型液晶面板之间， 所述常黑型液晶面板的液晶层设 置在所述第一偏光片和所述第二偏光片之间， 并且在所述第一偏光片与所述常黑 型液晶面板的液晶层之间和 /或所述第二偏光片与所述常黑型液晶面板的液晶层 之间设置有光学补偿膜， 以补偿所述常黑型液晶面板的液晶层在暗态时的色散。
8、 一种快门眼镜的控制方法， 包括：
接收步骤， 接收具有固定频率的画面刷新信号和背光启动信号， 所述画面刷 新信号按照其固定频率交替对应于一左眼影像信号和一右眼影像信号；
计时步骤， 以收到背光启动信号的时刻为起点， 每侦测到一画面刷新信号的 正源触发时重新计时；
开启步骤， 当计时达到设定的计时时长时， 控制左眼眼镜或者右眼眼镜开启 并持续设定的开启时间， 其中所述计时时长与开启时间之和小于固定频率的倒 数， 且左右眼眼镜的开启顺序与左右眼影像信号的顺序保持一致。
9、 如权利要求 8所述的快门眼镜的控制方法， 其中：
所述开启步骤中， 所述开启时间根据快门眼镜的液晶反应时间进行设置。
10、 如权利要求 8所述的快门眼镜的控制方法， 其中：
所述开启步骤中， 所述开启时间为所述固定频率的倒数的三分之一。
PCT/CN2014/070754 2013-12-30 2014-01-17 一种三维液晶显示装置及快门眼镜和快门眼镜的控制方法 Ceased WO2015100806A1 (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US14/241,807 US9513507B2 (en) 2013-12-30 2014-01-17 Three-dimensional liquid crystal display device, and shutter glass and control method for the same

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN201310745876.4A CN103760675B (zh) 2013-12-30 2013-12-30 一种三维液晶显示装置及快门眼镜和快门眼镜的控制方法
CN201310745876.4 2013-12-30

Publications (1)

Publication Number Publication Date
WO2015100806A1 true WO2015100806A1 (zh) 2015-07-09

Family

ID=50527936

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2014/070754 Ceased WO2015100806A1 (zh) 2013-12-30 2014-01-17 一种三维液晶显示装置及快门眼镜和快门眼镜的控制方法

Country Status (2)

Country Link
CN (1) CN103760675B (zh)
WO (1) WO2015100806A1 (zh)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104506844B (zh) * 2014-12-17 2017-09-05 张亚珍 一种快门眼镜与3d显示装置的主动式同步展示系统
CN108564917B (zh) * 2018-03-28 2021-02-09 深德彩科技(深圳)股份有限公司 Led显示屏及其显示方法、具有存储功能的装置

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102263971A (zh) * 2010-05-31 2011-11-30 索尼公司 立体显示系统
CN102413348A (zh) * 2011-11-24 2012-04-11 深圳市华星光电技术有限公司 立体图像显示装置和相应的立体图像显示方法
WO2013080990A1 (ja) * 2011-11-30 2013-06-06 シャープ株式会社 立体表示システム
WO2013125077A1 (ja) * 2012-02-24 2013-08-29 シャープ株式会社 液晶表示装置
CN103428518A (zh) * 2012-05-25 2013-12-04 三菱电机株式会社 立体图像显示装置

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP5029610B2 (ja) * 2006-08-30 2012-09-19 日本電気株式会社 画像処理装置、画像処理方法及びそのプログラム、表示装置並びに画像表示システム
CN103347193B (zh) * 2013-07-23 2015-03-11 深圳市华星光电技术有限公司 快门眼镜、控制快门眼镜的控制系统及方法

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102263971A (zh) * 2010-05-31 2011-11-30 索尼公司 立体显示系统
CN102413348A (zh) * 2011-11-24 2012-04-11 深圳市华星光电技术有限公司 立体图像显示装置和相应的立体图像显示方法
WO2013080990A1 (ja) * 2011-11-30 2013-06-06 シャープ株式会社 立体表示システム
WO2013125077A1 (ja) * 2012-02-24 2013-08-29 シャープ株式会社 液晶表示装置
CN103428518A (zh) * 2012-05-25 2013-12-04 三菱电机株式会社 立体图像显示装置

Also Published As

Publication number Publication date
CN103760675A (zh) 2014-04-30
CN103760675B (zh) 2016-05-18

Similar Documents

Publication Publication Date Title
US8531509B2 (en) Method and system for three-dimensional displays
EP2339864B1 (en) Stereoscopic image display device and method of driving the same
CN102036086B (zh) 图像显示观看系统、光调制器及图像显示设备
CN102768823B (zh) 背光控制方法、装置和3d显示系统
TW201137835A (en) Stereoscopic image displaying method and stereoscopic display device thereof
CN101963704A (zh) 立体图像显示器及其驱动方法
KR101291805B1 (ko) 입체 영상 표시장치와 그 구동방법
US9613560B2 (en) Backlight driving method, backlight driving device, and display device
JP2011128548A (ja) 画像表示装置、画像表示観察システム及び画像表示方法
TW201214395A (en) Display device, display method and computer program
CN102612838B (zh) 一种3d图像显示方法、系统、3d电视及眼镜
WO2013013422A1 (zh) 立体显示装置及其控制方法
WO2014106409A1 (zh) 一种3d图像显示的方法、装置和电视机
CN102647608B (zh) 立体图像显示器及其串扰补偿方法
WO2015100806A1 (zh) 一种三维液晶显示装置及快门眼镜和快门眼镜的控制方法
CN102881261A (zh) 3d液晶显示屏的背光源控制方法、装置及液晶电视
US8780286B2 (en) Three dimensional image display device
US8770759B2 (en) Liquid crystal glasses, projection display system and control method thereof
US20120235991A1 (en) Three dimensional display and driving method thereof
US9030401B2 (en) Three-dimensional display device and display control method thereof
WO2013078740A1 (zh) 液晶立体显示系统及驱动方法
TWI407148B (zh) 立體顯示器及立體畫面顯示方法
US9513507B2 (en) Three-dimensional liquid crystal display device, and shutter glass and control method for the same
WO2015010457A1 (zh) 快门眼镜、控制快门眼镜的控制系统及方法
WO2011029293A1 (zh) 用于3d图像显示的方法、电视机及一种眼镜

Legal Events

Date Code Title Description
WWE Wipo information: entry into national phase

Ref document number: 14241807

Country of ref document: US

121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 14877527

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 14877527

Country of ref document: EP

Kind code of ref document: A1