WO2013174106A1 - 显示装置及其控制方法 - Google Patents

显示装置及其控制方法 Download PDF

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Publication number
WO2013174106A1
WO2013174106A1 PCT/CN2012/084190 CN2012084190W WO2013174106A1 WO 2013174106 A1 WO2013174106 A1 WO 2013174106A1 CN 2012084190 W CN2012084190 W CN 2012084190W WO 2013174106 A1 WO2013174106 A1 WO 2013174106A1
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WIPO (PCT)
Prior art keywords
display panel
display
input
odd
data lines
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PCT/CN2012/084190
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English (en)
French (fr)
Inventor
张春芳
金熙哲
魏燕
徐超
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京东方科技集团股份有限公司
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Publication of WO2013174106A1 publication Critical patent/WO2013174106A1/zh

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/332Displays for viewing with the aid of special glasses or head-mounted displays [HMD]
    • H04N13/337Displays for viewing with the aid of special glasses or head-mounted displays [HMD] using polarisation multiplexing
    • GPHYSICS
    • G02OPTICS
    • G02BOPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B30/00Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
    • G02B30/20Optical 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
    • G02B30/22Optical 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
    • G02B30/25Optical 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 using polarisation techniques
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04NPICTORIAL COMMUNICATION, e.g. TELEVISION
    • H04N13/00Stereoscopic video systems; Multi-view video systems; Details thereof
    • H04N13/30Image reproducers
    • H04N13/356Image reproducers having separate monoscopic and stereoscopic modes
    • H04N13/359Switching between monoscopic and stereoscopic modes

Definitions

  • the present disclosure relates to the field of 2D/3D display technologies, and in particular, to a full field frequency full resolution 2D/3D display device and a control method thereof.
  • Background technique
  • 3D display technology has attracted wide attention.
  • 3D stereo display is a major development trend in the field of display in the future. It is more common to see the 3D liquid crystal display technology.
  • the glasses type 3D liquid crystal display technology two images of the left and right are projected by the display, and the user uses the glasses matched with the display to distribute the left and right images to the left and right eyes.
  • the eyepiece mirror type 3D display is simple in implementation and good in stereo effect, and is currently the mainstream product of 3D display.
  • the eyepiece mirror type 3D display technology mainly includes a shutter type (Shutter glass) and a pattern retarder.
  • Shutter glass 3D technology the field frequency is halved: if the input signal is 240Hz, and the 3D image is 120Hz; in the Pattern retarder 3D technology, the vertical resolution is halved: as in the 2D display, the vertical resolution is 1080, and The resolution of 3D display is only 540.
  • the resolution is not reduced and the field rate is not reduced.
  • the present disclosure provides a full resolution and full field rate display device and a control method thereof.
  • the present disclosure provides a display device, the device comprising: a display panel, and a phase modulation panel, the display panel displaying a 2D image in a 2D display mode; in a 3D display mode, a first half of a frame period , displaying the left eye image, displaying the right eye image in the second half frame time; or displaying the right eye image in the first half frame time of one frame, and displaying the left eye image in the second half frame time; the phase modulation panel is disposed in the Between the display panel and the human eye, the linearly polarized light for transmitting the display panel in the 2D display mode is kept in the polarization direction; in the 3D display mode, according to the attribute of the image displayed by the display panel, The linearly polarized light transmitted by the display panel is phase-modulated and transmits the modulated light.
  • the display panel includes an array substrate, and the array substrate is formed with a pixel array composed of a plurality of pixel structures, each of the pixel structures including two transistors; two adjacent rows of pixel structures are disposed between two a gate line, two data lines are disposed between adjacent two columns of pixel structures; The gate lines of the rows and the data lines of the odd columns are connected to the first transistor in each pixel structure, and the gate lines of the even rows and the data lines of the even columns are connected to the second transistor in each pixel structure.
  • the device further includes a backlight
  • the backlight includes a light guide plate and a light source
  • the light source is disposed at two sides of the light guide plate, and the light source is independently opened or closed or the same side light source is uniformly opened and closed.
  • the phase modulation panel comprises an upper substrate, a lower substrate and a phase modulation liquid crystal layer between the two substrates.
  • the phase modulation panel is divided into at least eight regions, each region for modulating incident light from linearly polarized light into left-handed circularly polarized light or right-handed circularly polarized light, the left-handed circularly polarized light and the right-handed circular field
  • the phase difference of the polarized light is 90°.
  • the present disclosure further provides a control method of a display device, in a 2D display mode, inputting a 2D display image to the display panel; the phase modulation panel causes linearly polarized light transmitted by the display panel to maintain its polarization direction to exit;
  • the phase modulation panel causes linearly polarized light transmitted by the display panel to maintain its polarization direction to exit;
  • the left eye image is displayed in the first half frame of one frame, and the right eye image is displayed in the second half frame time; or the right eye image is displayed in the first half frame time of one frame, and the second half frame time is displayed.
  • Displaying a left eye image; the phase modulation panel phase modulates the linearly polarized light transmitted by the display panel according to an attribute of the image displayed by the display panel, and transmits the modulated light.
  • a driving signal is input to the odd/even row gate lines of the display panel
  • a 2D image signal is input to the odd/even column data lines of the display panel
  • the same voltage signal is applied to different regions of the phase modulation panel.
  • the driving signal input the driving signal to the odd/even row gate lines of the display panel during the first half of one frame, and input the left/right eye image signals to the odd/even column data lines of the display panel;
  • the driving signal is input to the even/odd row gate lines of the display panel, and the right/left eye image signals are input to the even/odd column data lines of the display panel; according to the properties of the display panel display image to the phase modulation panel
  • the region applies different voltage signals, and modulates the incident linearly polarized light transmitted by the display panel into left-handed circularly polarized light and right-handed circularly polarized light having a phase difference of 90° corresponding to the left and right eye images.
  • a driving signal is input to the odd-numbered gate lines of the display panel, and a 2D image signal is input to the odd-numbered column data lines of the display panel; the same voltage signal is applied to different regions of the phase modulation panel;
  • the display mode inputting a driving signal to the odd-numbered gate lines of the display panel during the first half of the frame period, and inputting the left-eye image signal and the right-eye image signal to the odd-numbered data lines and the even-numbered data lines of the display panel, respectively;
  • the driving signal is input to the even-numbered row gate lines of the display panel, and is divided into the even-numbered data lines and the odd-numbered data lines of the display panel.
  • driving signals are input to odd-numbered gate lines of the display panel, and 2D image signals are input to odd-numbered column data lines of the display panel; different regions i of the phase modulation panel or the same voltage signals are applied;
  • In the 3D display mode input driving signals to odd-numbered gate lines of the display panel during the first half of one frame, and input right-eye image signals and left-eye images to the odd-numbered data lines and the even-numbered data lines of the display panel, respectively.
  • a signal input a driving signal to an even-numbered row gate line of the display panel during the second half of the frame period, and input a left-eye image signal and a right-eye image signal to the even-numbered data line and the odd-numbered column data line of the display panel; respectively, according to the display panel
  • the attributes of the image apply different voltage signals to different regions of the phase modulation panel, and the incident linearly polarized light transmitted by the display panel is modulated into left-handed circularly polarized light and right-handed circularly polarized light having a phase difference of 90° corresponding to the left and right eye images.
  • a driving signal is input to an even-numbered row gate line of the display panel, and a 2D image signal is input to an even-numbered column data line of the display panel; a different region i of the phase modulation panel or a same voltage signal is applied;
  • a signal is input to the odd-numbered gate lines of the display panel during the second half of the frame period, and the right-eye image signal and the left-eye image signal are respectively input to the even-numbered data lines and the odd-numbered data lines of the display panel;
  • the attributes of the image apply different voltage signals to different regions of the phase modulation panel, and the incident linearly polarized light transmitted by the display panel is modulated into left-handed circularly polarized light and right-handed circularly polarized light having a phase difference of 90° corresponding to the left and right eye images.
  • a driving signal is input to an even-numbered row gate line of the display panel, and a 2D image signal is input to an even-numbered column data line of the display panel; a different region i of the phase modulation panel or a same voltage signal is applied;
  • In the 3D display mode input driving signals to the even-numbered gate lines of the display panel during the first half of one frame, and input right-eye image signals and left-eye images to the odd-numbered data lines and the even-numbered data lines of the display panel, respectively.
  • Signal input driving signals to odd-numbered gate lines of the display panel during the second half of the frame period, and input left-eye image signals to the even-numbered data lines and the odd-numbered data lines of the display panel, respectively
  • the right eye image signal applying different voltage signals to different regions of the phase modulation panel according to the properties of the image displayed on the display panel, and modulating the incident linearly polarized light transmitted by the display panel into a left-handed phase with a phase difference of 90° corresponding to the left and right eye images Circularly polarized light and right-handed circularly polarized light.
  • the attribute of the display image displayed by the display panel is determined according to the driving manner of the parity row line and the parity column data line on the display panel.
  • the attribute of the display panel display image is determined according to the opening manner of the backlight.
  • the display device and the control method thereof of the present disclosure can perform the vertical resolution and the field frequency without reducing the vertical resolution and the field frequency by using a display panel designed with pixels having double gate lines and double data lines, and a phase modulation panel that can be driven according to display image attributes. 2D/3D display. DRAWINGS
  • FIG. 1(a)-1(b) is a schematic structural view of a display device according to an embodiment of the present disclosure
  • FIG. 2 is a schematic structural view of an array substrate of a display device according to an embodiment of the present disclosure
  • a schematic diagram of a phase modulation panel of a display device of an embodiment is disclosed;
  • FIG. 4 is a schematic structural view of a backlight of a display device according to an embodiment of the present disclosure. detailed description
  • the display device of the present disclosure divides one frame time (1H) into equal upper field times (denoted as
  • 1/2H and the lower field time are displayed, and the phase modulation panel (active) is utilized.
  • Retarder A 3D display is implemented in such a manner that the light transmitted through the display image is phase-delayed. For the same display area, within one frame time, 1/2H displays the left eye image, and 2/2H displays the right eye image (the left and right eye images can be changed), thereby ensuring that the resolution of the 3D image is not halved in one frame time, and its resolution is Both the rate and the field rate are not reduced (compared to the 2D display).
  • a display device includes: a backlight 1, a display panel 20, a phase modulation panel 30, and polarizing glasses 40.
  • the backlight 1 is used to provide illumination for the display panel 20, and includes a light guide plate and a light source.
  • the light source may be one of a point light source, a surface light source, and a line light source.
  • the embodiment is preferably an LED point light source.
  • the backlight may also include other components well known to those skilled in the art, such as: a diffusing film, a reflective sheet, etc., which are not described herein.
  • the display panel 20 is, for example, a TFT-LCD display panel, which includes an array (Array) substrate 3, a color film (CF) substrate 5, a liquid crystal layer 4 between the array substrate 3 and the color filter substrate 5, and an array substrate 3 facing the backlight.
  • the lower polarizer 2 attached to one side of the first polarizer 2 and the upper polarizer 6 attached to one surface of the phase modulation panel 30 are disposed, and the polarization directions of the upper and lower polarizers are orthogonal.
  • the lower polarizer 2 has a polarization direction of 135° and the upper polarizer 6 has a polarization direction of 45°, and the specific angle is not intended to limit the present disclosure.
  • the array substrate 3 of the display panel is designed with a pixel having a dual gate line and a dual data line, that is, two pixels are arranged between two adjacent rows of pixel structures.
  • a gate line scanning line
  • two data lines are disposed between adjacent two columns of pixel structures
  • each pixel structure includes two thin film field effect transistors TFT, odd line gate lines, and odd column data lines and each The first TFTs in the pixel structure are connected, and the gate lines of the even rows and the data lines of the even columns are connected to the second TFT in each pixel structure.
  • the pixel structure 3-1 includes one pixel electrode and two TFTs, and the two TFTs have the same effect on the pixel electrode, and the gate lines G3 of the odd rows
  • the data line D3 of the odd-numbered columns is connected to the TFT 3-1-1
  • the gate line G2 of the even-numbered rows and the data line D2 of the even-numbered columns are connected to the TFT 3-1-2.
  • the gate lines G1 of the odd rows and the data lines D1, D3, D5 of the odd columns are respectively connected to the first TFTs in the corresponding pixel structure
  • the gate lines G4 of the even rows and the data lines D2, D4, D6 of the even columns are respectively connected to the first TFTs in the corresponding pixel structure.
  • all odd row scan lines can be controlled by the left gate driver
  • all even row scan lines can be controlled by the right gate driver
  • the scan lines and data lines can be driven in the prior art. Any of the possible ways known to the surgeon.
  • the left gate driver is driven in 1/2H time
  • the odd row scan lines are sequentially turned on
  • the odd column data lines are input into the left eye image signal, so that the driven image is driven.
  • the pixel displays the left eye image information; in the 2/2H time, the right gate driver is driven, the even row scan lines are sequentially turned on, and the even column data lines are input to the right eye image signal, so that the area pixel displays the right eye image information, and
  • the left and right eye images are all full resolution images.
  • the display screen may be driven by the odd-line scan lines and the odd-numbered column data lines, or the display screen may be driven by the even-numbered row scan lines and the even-numbered column data lines.
  • the phase modulation panel 30 is disposed between the display panel 10 and the human eye (polarized glasses 40) for displaying the properties of the image displayed according to the display panel 10 (whether the attribute refers to whether the displayed image is a left eye image or a right eye image)
  • the linearly polarized light transmitted by the panel is phase-modulated and modulated into left-handed circularly polarized light and right-handed circularly polarized light with a phase difference of 90°.
  • the two kinds of light can only be received by the left and right eyes of the polarized glasses, respectively, and transmitted.
  • the modulated light In the apparatus of the present embodiment, the phase modulation panel 30 includes a lower substrate 7, an upper substrate 9, and a phase modulation liquid crystal layer 8 filled between the substrates.
  • phase modulation panel The principle of the phase modulation panel is the same as that of the conventional liquid crystal panel, that is, by applying different voltages, the liquid crystals of the phase modulation liquid crystal layer 8 are correspondingly deflected, thereby transmitting incident light of the corresponding polarization direction.
  • the phase modulation panel can be active or passive and will not be described here. Further, since the liquid crystal molecules in the phase modulation panel have hysteresis, when the left eye picture is displayed at this time and the right eye picture is displayed at the next time, the liquid crystal molecules are not adjusted, and crosstalk between the left and right eye signals may occur. In order to minimize the crosstalk of the left and right eye signals, the phase modulation panel 30 is to be partitioned.
  • the number of partitions is even, which corresponds to the left and right eyes, respectively. And as the number of partitions increases, the crosstalk of the left and right eye signals decreases.
  • the phase modulation panel 30 is preferably divided into at least eight regions. When the number of partitions reaches eight, the crosstalk of the left and right eye signals can be reduced to less than 50%, thereby improving the display effect of the display panel 3D. All of the partitions can have two polarization directions, and the distribution manner of the two polarization directions in each partition changes according to the scanning mode of the display panel 20. By applying different drive signals, each partition can modulate the incident light from linearly polarized light into left-handed circularly polarized light or right-handed circularly polarized light. As shown in Fig. 3, in the apparatus of the present embodiment, the phase modulation panel 30 is divided into eight regions.
  • the attributes of the image displayed by the display panel 20 are distinguished according to the parity row scanning line and the parity column data line of the driving pixel. Therefore, when the 3D display is performed, the phase modulation panel 30 can be driven in accordance with the driving manner of the parity row scanning line and the parity column data line (the left eye image or the right eye image is displayed according to the display panel 20). According to the difference between the left and right witness signals, the phase modulation panel selectively changes its optical axis direction to transmit the polarization of the image entering the left and right eyes. The direction is different.
  • the optical axis of the outgoing light of the upper polarizer 6 is 0°, and the phase modulation panel 30 sets the liquid crystal molecules of the corresponding region according to the scanning position of the display panel 20.
  • the optical axis direction is changed to 135° to convert the left-eye signal image into left-handed circularly polarized light so that the image can be received by the left eye of the polarizing glasses 40 to form a left-eye image, which is a full-resolution image;
  • the optical axis of the outgoing light of the upper polarizer is 0°, and the phase modulation panel 30 changes the corresponding optical axis direction to 45 according to the scanning position of the display panel 20.
  • the right-eye signal image into right-handed circularly polarized light so that it can be received by the right eye of the polarizing glasses 40 to form a right-eye image, which is also a full-resolution image. Due to the persistence of the human eye, the left-eye image and the right-eye image are superimposed in the human brain, thereby forming a full-resolution stereoscopic image, and the 3D image field frequency is not halved.
  • the voltage signals applied to the different sections of the phase modulation panel 30 are the same, so that the emitted light is consistent with the incident light (linearly polarized light having a delay amount of 0°).
  • the phase modulation panel 30 can also determine whether the display panel displays a left eye or a right eye image according to the manner in which the backlight is turned on, thereby performing corresponding driving.
  • the light sources of the backlight 1 can be respectively disposed on two sides of the light guide plate, and the light sources on both sides can be symmetrically arranged, the number can be equal or unequal, each light source can be operated independently, or the same side light source can be uniformly turned on or off.
  • the light guide plate 1-1 includes a plurality of rectangular light guide plates 1-1-1 arranged in parallel, and a reflective sheet 1-1-2 is disposed between two adjacent light guide plates 1-1-1.
  • At least one light source 1-2 (one in the present embodiment) is disposed on each side of each of the light guide plates 1-1-1.
  • the backlight 1 can illuminate the light source on either side of the light guide plate according to the control signal, or simultaneously turn on the two side light sources for illumination.
  • the attribute of the image displayed on the display panel is determined according to the driving manner of the backlight.
  • the backlight 1 turns on the light source on the left side of the light guide plate
  • the backlight 1 turns on the light source on the right side of the light guide plate.
  • the light provided by the backlight 1 passes through the lower polarizing plate 2 (135°), the liquid crystal layer 4, and the upper polarizing plate (45.) 6 and is linearly polarized light having the same polarization direction, and then the linearly polarized light enters the phase modulation panel 30.
  • the phase modulation panel 30 is driven in accordance with the on position of the light source 1-2 such that the emitted light is modulated into left-handed polarized light or right-handed polarized light, thereby being received by the left or right eye of the polarized glasses 40.
  • the polarized glasses 40 include a polarizing glasses main body 12, and the polarizing plate 11 and the 1/4 round thin film 10 are sequentially attached to the lens of the main body, wherein the left and right eye polarizers The polarization direction is opposite, and the difference in phase retardation of the left and right eye 1/4 circular foil is 90°.
  • the structure and principle of the polarized glasses are not described herein.
  • the present disclosure also provides a control method of a display device:
  • the left eye image In the 1/2H time, the left eye image is displayed, the left side light source of the backlight is turned on; the driving signal is input to the odd row gate line of the display panel, and the left eye image signal is input to the odd column data line of the display panel.
  • the display time of the left and right eye images can be changed, for example, the right eye image is displayed in 1/2H time, and the left eye image is displayed in 2/2H time.

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  • Engineering & Computer Science (AREA)
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  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
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Abstract

一种显示装置及其控制方法,采用具有双栅线和双数据线的像素设计的显示面板(20),根据显示图像属性进行驱动的相位调制面板(30),进行不降低垂直解析度和场频的2D/3D显示。该装置包括:显示面板(20)以及相位调制面板(30)。显示面板(20)在2D显示模式下显示2D图像;在3D显示模式下,一帧的前半帧时间内,显示左眼或右眼图像,后半帧时间内,显示右眼或左眼图像;相位调制面板(30)设置在所述显示面板(20)与人眼之间,在2D显示模式下使显示面板(20)透射的线偏振光保持其偏振方向出射;在3D显示模式下,根据显示面板(20)所显示图像的属性,对显示面板(20)透射的线偏振光进行相位调制,并透射调制后的光。

Description

显示装置及其控制方法 技术领域
本公开涉及 2D/3D 显示技术领域, 尤其涉及一种全场频全分辨率的 2D/3D显示装置及其控制方法。 背景技术
随着显示技术的发展及人们对感官追求的提高, 3D显示技术引起人们 的广泛关注。 3D立体显示是未来显示领域的一大发展趋势, 目艮镜式 3D液晶 显示技术是较常用的一种。 眼镜式 3D液晶显示技术中,由显示器投射出左右 两幅图像, 用户使用与显示器配套的眼镜, 将左右图像分别分配到左右眼睛 上。 目艮镜式 3D显示实现方式简单, 立体效果好, 是目前 3D显示主流产品。
目艮镜式 3D显示技术主要包括快门式( Shutter glass )以及偏光式( Pattern retarder )。 两种方式各有优劣。 Shutter glass 3D技术中, 场频减半: 如输入信 号为 240Hz, 而 3D图像则为 120Hz; 而 Pattern retarder 3D技术中, 垂直解 析度减半: 如在 2D显示时, 垂直解析度为 1080, 而 3D显示时解析度仅为 540。 目前还没有关于分辨率不降低, 同时场频也不降低的 3D显示设计。 发明内容
本公开提供了一种全分辨率以及全场频的显示装置及其控制方法。
为此, 本公开提供了一种显示装置, 该装置包括: 显示面板、 以及相位 调制面板,所述显示面板在 2D显示模式下显示 2D图像;在 3D显示模式下, 一帧的前半帧时间内, 显示左眼图像, 后半帧时间内, 显示右眼图像; 或者 一帧的前半帧时间内, 显示右眼图像, 后半帧时间内, 显示左眼图像; 所述 相位调制面板设置在所述显示面板与人眼之间, 用于在 2D显示模式下使所 述显示面板透射的线偏振光保持其偏振方向出射; 在 3D显示模式下, 根据 所述显示面板所显示图像的属性, 对所述显示面板透射的线偏振光进行相位 调制, 并透射调制后的光。
优选地, 所述显示面板包括阵列基板, 所述阵列基板上形成有由多个像 素结构构成的像素阵列, 每个所述像素结构包括两个晶体管; 相邻两行像素 结构之间设置有两条栅线, 相邻两列像素结构之间设置有两条数据线; 奇数 行的栅线以及奇数列的数据线与每个像素结构中的第一晶体管相连, 偶数行 的栅线以及偶数列的数据线与每个像素结构中的第二晶体管相连。
优选地, 该装置还包括背光源, 所述背光源包括导光板以及光源, 所述 光源设置在所述导光板的两侧, 所述光源独立开闭或同侧光源统一开闭。
优选地, 所述相位调制面板包括上基板、 下基板以及两基板之间的相位 调制液晶层。
优选地, 所述相位调制面板分为至少八个区域, 每个区域用于将入射光 由线偏振光调制为左旋圓偏振光或右旋圓偏振光, 所述左旋圓偏振光与右旋 园偏振光的相位差为 90° 。
本公开还提供了一种显示装置的控制方法, 在 2D显示模式下, 向所述 显示面板输入 2D显示图像; 所述相位调制面板使所述显示面板透射的线偏 振光保持其偏振方向出射; 在 3D显示模式下, 一帧的前半帧时间内, 显示 左眼图像, 后半帧时间内, 显示右眼图像; 或者一帧的前半帧时间内, 显示 右眼图像, 后半帧时间内, 显示左眼图像; 所述相位调制面板根据所述显示 面板所显示图像的属性, 对所述显示面板透射的线偏振光进行相位调制, 并 透射调制后的光。
优选地,在 2D显示模式下,向显示面板的奇 /偶数行栅线输入驱动信号, 向显示面板的奇 /偶数列数据线输入 2D图像信号; 向相位调制面板的不同区 域施加相同的电压信号; 在 3D显示模式下: 在一帧的前半帧时间内, 向显 示面板的奇 /偶数行栅线输入驱动信号, 向显示面板的奇 /偶数列数据线输入 左 /右眼图像信号; 在后半帧时间内, 向显示面板的偶 /奇数行栅线输入驱动 信号, 向显示面板的偶 /奇数列数据线输入右 /左眼图像信号; 根据显示面板 显示图像的属性向相位调制面板的不同区域施加不同的电压信号, 将显示面 板透射的入射的线偏振光调制为对应左右眼图像的相位差为 90° 的左旋圓 偏振光以及右旋圓偏振光。
在一示例中, 在 2D显示模式下, 向显示面板的奇数行栅线输入驱动信 号, 向显示面板的奇数列数据线输入 2D图像信号; 相位调制面板的不同区 域施加相同的电压信号; 在 3D显示模式下: 在一帧的前半帧时间内, 向显 示面板的奇数行栅线输入驱动信号, 向显示面板的奇数列数据线和偶数列数 据线分别输入左眼图像信号和右眼图像信号; 在后半帧时间内, 向显示面板 的偶数行栅线输入驱动信号, 向显示面板的偶数列数据线和奇数列数据线分 别输入右眼图像信号和左眼图像信号; 根据显示面板显示图像的属性向相位 调制面板的不同区域施加不同的电压信号, 将显示面板透射的入射的线偏振 光调制为对应左右眼图像的相位差为 90° 的左旋圓偏振光以及右旋圓偏振 光。
在一示例中, 在 2D显示模式下, 向显示面板的奇数行栅线输入驱动信 号, 向显示面板的奇数列数据线输入 2D图像信号; 相位调制面板的不同区 i或施加相同的电压信号;
在 3D显示模式下: 在一帧的前半帧时间内, 向显示面板的奇数行栅线 输入驱动信号, 向显示面板的奇数列数据线和偶数列数据线分别输入右眼图 像信号和左眼图像信号; 在后半帧时间内, 向显示面板的偶数行栅线输入驱 动信号, 向显示面板的偶数列数据线和奇数列数据线分别输入左眼图像信号 和右眼图像信号; 根据显示面板显示图像的属性向相位调制面板的不同区域 施加不同的电压信号, 将显示面板透射的入射的线偏振光调制为对应左右眼 图像的相位差为 90° 的左旋圓偏振光以及右旋圓偏振光。
在一示例中, 在 2D显示模式下, 向显示面板的偶数行栅线输入驱动信 号, 向显示面板的偶数列数据线输入 2D图像信号; 相位调制面板的不同区 i或施加相同的电压信号;
在 3D显示模式下: 在一帧的前半帧时间内, 向显示面板的偶数行栅线 输入驱动信号, 向显示面板的奇数列数据线和偶数列数据线分别输入左眼图 像信号和右眼图像信号; 在后半帧时间内, 向显示面板的奇数行栅线输入驱 动信号, 向显示面板的偶数列数据线和奇数列数据线分别输入右眼图像信号 和左眼图像信号; 根据显示面板显示图像的属性向相位调制面板的不同区域 施加不同的电压信号, 将显示面板透射的入射的线偏振光调制为对应左右眼 图像的相位差为 90° 的左旋圓偏振光以及右旋圓偏振光。
在一示例中, 在 2D显示模式下, 向显示面板的偶数行栅线输入驱动信 号, 向显示面板的偶数列数据线输入 2D图像信号; 相位调制面板的不同区 i或施加相同的电压信号;
在 3D显示模式下: 在一帧的前半帧时间内, 向显示面板的偶数行栅线 输入驱动信号, 向显示面板的奇数列数据线和偶数列数据线分别输入右眼图 像信号和左眼图像信号; 在后半帧时间内, 向显示面板的奇数行栅线输入驱 动信号, 向显示面板的偶数列数据线和奇数列数据线分别输入左眼图像信号 和右眼图像信号; 根据显示面板显示图像的属性向相位调制面板的不同区域 施加不同的电压信号, 将显示面板透射的入射的线偏振光调制为对应左右眼 图像的相位差为 90° 的左旋圓偏振光以及右旋圓偏振光。
优选地, 根据所述显示面板上奇偶行栅线和奇偶列数据线的驱动方式判 断所述显示面板显示图像的属性。
优选地, 根据背光源的打开方式判断所述显示面板显示图像的属性。 本公开的显示装置及其控制方法通过釆用具有双栅线和双数据线的像 素设计的显示面板, 结合可根据显示图像属性进行驱动的相位调制面板, 可 进行不降低垂直解析度和场频的 2D/3D显示。 附图说明
为了更清楚地说明本公开或现有技术中的技术方案, 下面将对本公开提 供的技术方案或现有技术描述中所需要使用的附图作简单地介绍, 显而易见 地, 下面描述中的附图仅仅是本公开的技术方案的部分具体实施方式图示说 明, 对于本领域普通技术人员来讲, 在不付出创造性劳动的前提下, 还可以 根据这些附图获得其他的附图。
图 1 ( a ) -1 ( b )为依照本公开一种实施方式的显示装置的结构示意图; 图 2为依照本公开一种实施方式的显示装置的阵列基板的结构示意图; 图 3 为依照本公开一种实施方式的显示装置的相位调制面板原理示意 图;
图 4为依照本公开一种实施方式的显示装置的背光源的结构示意图。 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。
本公开提出的显示装置及其控制方法, 结合附图及实施例详细说明如 下。
本公开的显示装置, 将一帧时间 (1H )分为相等的上半帧时间 (记为
1/2H )和下半帧时间 (记为 2/2H )进行显示, 并利用相位调制面板(active retarder )来对显示图像透射的光进行相位延迟的方式来实现 3D显示。 对于 同一显示区域在一帧时间内, 1/2H显示左眼图像, 2/2H显示右眼图像(左右 眼图像可换), 从而保证 3D图像在一帧时间内分辨率不减半, 其分辨率和场 频都不会降低 (与 2D显示相比较)。
如图 1 ( a ) -1 ( b )所示, 依照本公开一种实施方式的显示装置包括: 背光源 1、 显示面板 20、 相位调制面板 30、 以及偏光眼镜 40。
背光源 1用于为显示面板 20提供照明, 其包括导光板以及光源, 光源 可为点光源、 面光源、 和线光源之一, 本实施方式优选为 LED点光源。 背光 源还可包括本领域技术人员所熟知的其他的部件, 例如: 散射膜、 反射片等 等, 在此不做赞述。
显示面板 20例如为 TFT-LCD显示面板, 其包括阵列 ( Array )基板 3、 彩膜 ( CF )基板 5、 阵列基板 3与彩膜基板 5之间的液晶层 4、 阵列基板 3 面对背光源 1的一面上贴附的下偏光片 2、 以及彩膜基板 5面对相位调制面 板 30的一面上贴附的上偏光片 6, 上下偏光片的偏振方向正交。 优选地, 下 偏光片 2偏振方向为 135° , 上偏光片 6的偏振方向为 45° , 具体角度不作 为对本公开的限制。
在本实施方式的装置中, 显示面板的阵列基板 3釆用具有双栅线(dual gate line )和双数据线(dual data line ) 的像素设计, 即相邻两行像素结构之 间设置有两条栅线(扫描线),相邻两列像素结构之间设置有两条数据线, 每 个像素结构包括两个薄膜场效应晶体管 TFT, 奇数行的栅线以及奇数列的数 据线与每个像素结构中的第一 TFT相连,偶数行的栅线以及偶数列的数据线 与每个像素结构中的第二 TFT相连。 如图 2所示, 以像素结构 3-1为例, 该 像素结构 3-1包括一个像素电极以及两个 TFT, 这两个 TFT对于该像素电极 的作用是相同的, 奇数行的栅线 G3以及奇数列的数据线 D3与 TFT 3-1-1相 连, 偶数行的栅线 G2以及偶数列的数据线 D2与 TFT 3-1-2相连。 同理, 奇 数行的栅线 G1以及奇数列的数据线 Dl、 D3、 D5分别与相应的像素结构中 的第一 TFT相连, 偶数行的栅线 G4以及偶数列的数据线 D2、 D4、 D6与相 应的像素结构中的第二 TFT相连, 即对于有效显示区内的每个像素对应两条 扫描线(奇数行栅线和偶数行栅线)和两条数据线(奇数行数据线和偶数行 数据线),所有奇数行扫描线可由左侧栅极驱动器控制,所有偶数行扫描线可 由右侧栅极驱动器控制, 扫描线以及数据线的驱动方式可釆用本领域普通技 术人员所熟知的任意一种可能的方式。 对于本公开的装置, 例如, 在 3D显 示模式时, 在 1/2H时间内, 驱动左侧栅极驱动器, 顺次打开奇数行扫描线, 奇数列数据线输入左眼图像信号, 使得被驱动的像素显示左眼图像信息; 在 2/2H时间内, 驱动右侧栅极驱动器, 顺次打开偶数行扫描线, 偶数列数据线 输入右眼图像信号, 使得该区域像素显示右眼图像信息, 且左右眼图像均为 全分辨率的画面。 在进行 2D显示时, 可选择以奇数行扫描线和奇数列数据 线驱动显示画面,或选择以偶数行扫描线和偶数列数据线驱动显示画面均可。
相位调制面板 30设置在显示面板 10与人眼 (偏光眼镜 40 )之间, 用于 根据显示面板 10所显示图像的属性(该属性指显示的图像是左眼图像还是右 眼图像), 对显示面板透射的线偏振光进行相位调制, 将其调制为相位差为 90° 的左旋圓偏振光以及右旋圓偏振光, 两种光分别只能够被偏光眼镜的左 眼和右眼接收, 并透射调制后的光。 本实施方式的装置中, 该相位调制面板 30包括: 下基板 7、 上基板 9以及两基板之间填充的相位调制液晶层 8。 该 相位调制面板的原理与传统的液晶面板相同, 即通过施加不同的电压使相位 调制液晶层 8的液晶产生相应的偏转, 从而透射相应偏振方向的入射光。 该 相位调制面板可为有源的或无源的, 在此不做赞述。 此外, 由于相位调制面 板中的液晶分子有滞后性,当此时显示左眼画面而下一时刻显示右眼画面时, 液晶分子来不及调节, 会出现左右眼信号串扰的情况。 为了尽量减少左右眼 信号的串扰,相位调制面板 30要进行分区。 分区数量为偶数, 从而分别对应 于左眼和右眼。 且随着分区数量的增加, 左右眼信号的串扰减小。 相位调制 面板 30优选至少分为 8个区域。在分区的数量达到 8个时,左右眼信号的串 扰可以降低到 50%以下, 从而提高了显示面板 3D显示效果。 全部分区均可 具有两种偏振方向, 两种偏振方向在各分区内的分布方式对应显示面板 20 的扫描方式进行改变。 通过施加不同的驱动信号, 每个分区可将入射光由线 偏振光调制为左旋圓偏振光或右旋圓偏振光。 如图 3所示, 在本实施方式的 装置中, 相位调制面板 30分为 8个区域。
在本实施方式的装置中, 显示面板 20所显示的图像的属性根据驱动像 素的奇偶行扫描线和奇偶列数据线来区分。 因此, 在进行 3D显示时, 相位 调制面板 30可按照奇偶行扫描线和奇偶列数据线的驱动方式进行驱动(根据 显示面板 20显示的是左眼图像还是右眼图像)。 根据左右目艮信号的区别, 相 位调制面板选择性的变更其光轴方向, 使其透射的进入左右眼的图像的偏振 方向不同。 例如, 1/2帧时间里, 显示面板 20呈现左眼图像信号时, 上偏光 片 6的出射光光轴为 0° , 相位调制面板 30根据显示面板 20的扫描位置将 对应区域的液晶分子的光轴方向变更为 135° , 从而将左眼信号图像转变为 左旋圓偏振光,以使该图像能够被偏光眼镜 40的左眼所接收,形成左眼图像, 此图像为全分辨率图像; 而在 2/2帧时间里, 显示面板 20呈现右眼图像信号 时, 上偏光片的出射光光轴为 0° , 相位调制面板 30根据显示面板 20的扫 描位置将对应的光轴方向变更为 45° ,从而将右眼信号图像转变为右旋圓偏 振光,使其能够被偏光眼镜 40的右眼所接收, 形成右眼图像, 此图像也为全 分辨率图像。 由于人眼的视觉暂留现象,左眼图像和右眼图像在人脑中叠加, 从而形成了全分辨率的立体图像, 同时 3D图像场频不减半。在进行 2D显示 时,相位调制面板 30的不同分区所被施加的电压信号相同,使得出射光与入 射光保持一致(延迟量为 0° 的线偏振光)。
此外, 相位调制面板 30还可根据背光源的打开方式来判断显示面板显 示的是左眼还是右眼图像, 从而进行相应的驱动。 如图 4所示, 背光源 1的 光源可分别设置在导光板的两侧, 两侧光源可对称设置,数量可相等或不等, 每个光源可独立操作,或同侧光源统一开启或关闭。在本实施方式的装置中, 导光板 1-1包括多个平行设置的矩形导光板 1-1-1 , 相邻两块导光板 1-1-1之 间设置有反射片 1-1-2,且每块导光板 1-1-1两侧分别设置有至少一个光源 1-2 (本实施方式中为一个)。这样, 背光源 1可才艮据控制信号开启导光板任意一 侧的光源进行照明, 或同时打开两侧光源进行照明。 为了实现相位调制面板 30根据背光源的驱动方式来判断显示面板显示图像的属性。 优选地, 在显示 左眼图像时, 背光源 1开启导光板左侧的光源, 在显示右眼图像时, 背光源 1开启导光板右侧的光源。 背光源 1提供的光经过下偏振片 2 ( 135° )、 液晶 层 4和上偏振片 (45。 ) 6后为偏振方向一致的线偏振光, 然后此线偏振光 进入到相位调制面板 30中, 相位调制面板 30按照光源 1-2的开启位置进行 驱动, 使得出射光被调制为左旋偏振光或右旋偏振光, 从而由偏光眼镜 40 的左眼或右眼来接收。
如图 1 ( b )所示, 在本实施方式的装置中, 偏光眼镜 40包括偏光眼镜 主体 12, 该主体的镜片上依次贴附偏光片 11和 1/4圓薄片 10, 其中左右眼 偏光片的偏振方向相反, 左右眼 1/4圓薄片相位延迟量差为 90° , 偏光眼镜 的结构及原理在此不做赘述。 本公开还提供了一种显示装置的控制方法:
在 2D显示模式下: 打开背光源的任一侧或两侧的光源; 向显示面板的 奇 /偶数行栅线输入驱动信号, 向显示面板的奇 /偶数列数据线输入图像信号; 对相位调制面板的不同区域施加相同的电压信号。
在 3D显示模式下: 在 1/2H时间内, 显示左眼图像, 打开背光源的左侧 光源; 向显示面板的奇数行栅线输入驱动信号, 向显示面板奇数列数据线输 入左眼图像信号; 在 2/2H时间内, 显示右眼图像, 打开背光源的右侧光源; 向显示面板的偶数行栅线输入驱动信号, 向显示面板的偶数列数据线输入右 眼图像信号; 根据显示面板显示图像的属性(左眼图像还是右眼图像) 向相 位调制面板的不同区域施加不同的电压信号, 将对应左右眼图像的入射光调 制为偏振方向正交的左旋圓偏振光以及右旋圓偏振光。 左右眼图像的显示时 间可调换, 例如在 1/2H时间内, 显示右眼图像, 在 2/2H时间内, 显示左眼 图像。
还可以根据背光源的光源的打开方式 (左侧光源打开还是右侧光源打 开 ) 以及显示面板上奇偶行栅线和奇偶列数据线的驱动方式来判断所述显示 面板显示图像的属性。
以上实施方式仅用于说明本发明, 而并非对本发明的限制, 有关技术领 域的普通技术人员, 在不脱离本发明的精神和范围的情况下, 还可以做出各 种变化和变型, 因此所有等同的技术方案也属于本发明的范畴, 本发明的专 利保护范围应由权利要求限定。

Claims

权利要求书
1、 一种显示装置, 包括: 显示面板、 以及相位调制面板, 其特征在于: 所述显示面板在 2D显示模式下显示 2D图像; 在 3D显示模式下, 一帧 的前半帧时间内, 显示左眼图像, 后半帧时间内, 显示右眼图像; 或者一帧 的前半帧时间内, 显示右眼图像, 后半帧时间内, 显示左眼图像;
所述相位调制面板设置在所述显示面板与人眼之间, 用于在 2D显示模 式下使所述显示面板透射的线偏振光保持其偏振方向出射; 在 3D显示模式 下, 根据所述显示面板所显示图像的属性, 对所述显示面板透射的线偏振光 进行相位调制, 并透射调制后的光。
2、如权利要求 1所述的装置,其特征在于,所述显示面板包括阵列基板, 所述阵列基板上形成有由多个像素结构构成的像素阵列, 每个所述像素结构 包括两个晶体管; 相邻两行像素结构之间设置有两条栅线, 相邻两列像素结 构之间设置有两条数据线; 奇数行的栅线以及奇数列的数据线与每个像素结 构中的第一晶体管相连, 偶数行的栅线以及偶数列的数据线与每个像素结构 中的第二晶体管相连。
3、 如权利要求 1或 2所述的装置, 其特征在于, 该装置还包括背光源, 所述背光源包括导光板以及光源, 所述光源设置在所述导光板的两侧, 所述 光源独立开闭或同侧光源统一开闭。
4、如权利要求 1至 3任一所述的装置, 其特征在于, 所述相位调制面板 包括上基板、 下基板以及两基板之间的相位调制液晶层。
5、如权利要求 1至 4任一所述的装置, 其特征在于, 所述相位调制面板 分为至少八个区域, 每个区域用于将入射光由线偏振光调制为左旋圓偏振光 或右旋圓偏振光, 所述左旋圓偏振光与右旋园偏振光的相位差为 90° 。
6、 一种显示装置的控制方法, 其特征在于:
在 2D显示模式下, 向所述显示面板输入 2D显示图像; 所述相位调制面 板使所述显示面板透射的线偏振光保持其偏振方向出射;
在 3D显示模式下: 在一帧的前半帧时间内, 使所述显示面板显示左眼 图像, 后半帧时间内, 使所述显示面板显示右眼图像; 或者在一帧的前半帧 时间内, 使所述显示面板显示右眼图像, 后半帧时间内, 使所述显示面板显 示左眼图像; 所述相位调制面板根据所述显示面板所显示图像的属性, 对所 述显示面板透射的线偏振光进行相位调制, 并透射调制后的光。
7、 如权利要求 6所述的方法, 其特征在于,
在 2D显示模式下, 向显示面板的奇数行栅线输入驱动信号, 向显示面 板的奇数列数据线输入 2D图像信号; 相位调制面板的不同区域施加相同的 电压信号;
在 3D显示模式下: 在一帧的前半帧时间内, 向显示面板的奇数行栅线 输入驱动信号, 向显示面板的奇数列数据线和偶数列数据线分别输入左眼图 像信号和右眼图像信号; 在后半帧时间内, 向显示面板的偶数行栅线输入驱 动信号, 向显示面板的偶数列数据线和奇数列数据线分别输入右眼图像信号 和左眼图像信号; 根据显示面板显示图像的属性向相位调制面板的不同区域 施加不同的电压信号, 将显示面板透射的入射的线偏振光调制为对应左右眼 图像的相位差为 90° 的左旋圓偏振光以及右旋圓偏振光。
8、 如权利要求 6所述的方法, 其特征在于,
在 2D显示模式下, 向显示面板的奇数行栅线输入驱动信号, 向显示面 板的奇数列数据线输入 2D图像信号; 相位调制面板的不同区域施加相同的 电压信号;
在 3D显示模式下: 在一帧的前半帧时间内, 向显示面板的奇数行栅线 输入驱动信号, 向显示面板的奇数列数据线和偶数列数据线分别输入右眼图 像信号和左眼图像信号; 在后半帧时间内, 向显示面板的偶数行栅线输入驱 动信号, 向显示面板的偶数列数据线和奇数列数据线分别输入左眼图像信号 和右眼图像信号; 根据显示面板显示图像的属性向相位调制面板的不同区域 施加不同的电压信号, 将显示面板透射的入射的线偏振光调制为对应左右眼 图像的相位差为 90° 的左旋圓偏振光以及右旋圓偏振光。
9、 如权利要求 6所述的方法, 其特征在于,
在 2D显示模式下, 向显示面板的偶数行栅线输入驱动信号, 向显示面 板的偶数列数据线输入 2D图像信号; 相位调制面板的不同区域施加相同的 电压信号;
在 3D显示模式下: 在一帧的前半帧时间内, 向显示面板的偶数行栅线 输入驱动信号, 向显示面板的奇数列数据线和偶数列数据线分别输入左眼图 像信号和右眼图像信号; 在后半帧时间内, 向显示面板的奇数行栅线输入驱 动信号, 向显示面板的偶数列数据线和奇数列数据线分别输入右眼图像信号 和左眼图像信号; 根据显示面板显示图像的属性向相位调制面板的不同区域 施加不同的电压信号, 将显示面板透射的入射的线偏振光调制为对应左右眼 图像的相位差为 90° 的左旋圓偏振光以及右旋圓偏振光。
10、 如权利要求 6所述的方法, 其特征在于,
在 2D显示模式下, 向显示面板的偶数行栅线输入驱动信号, 向显示面 板的偶数列数据线输入 2D图像信号; 相位调制面板的不同区域施加相同的 电压信号;
在 3D显示模式下: 在一帧的前半帧时间内, 向显示面板的偶数行栅线 输入驱动信号, 向显示面板的奇数列数据线和偶数列数据线分别输入右眼图 像信号和左眼图像信号; 在后半帧时间内, 向显示面板的奇数行栅线输入驱 动信号, 向显示面板的偶数列数据线和奇数列数据线分别输入左眼图像信号 和右眼图像信号; 根据显示面板显示图像的属性向相位调制面板的不同区域 施加不同的电压信号, 将显示面板透射的入射的线偏振光调制为对应左右眼 图像的相位差为 90° 的左旋圓偏振光以及右旋圓偏振光。
11、 如权利要求 7-10任一所述的方法, 其特征在于, 根据所述显示面板 上奇偶行栅线和奇偶列数据线的驱动方式判断所述显示面板显示图像的属 性。
12、 如权利要求 7-10任一所述的方法, 其特征在于, 根据背光源的打开 方式判断所述显示面板显示图像的属性。
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KR20140049666A (ko) * 2012-10-18 2014-04-28 삼성디스플레이 주식회사 투명 표시 패널 및 이를 포함하는 투명 표시 장치
CN103293756B (zh) 2013-05-30 2016-08-10 京东方科技集团股份有限公司 一种显示处理装置、系统及方法
CN103513483B (zh) * 2013-10-28 2016-05-25 京东方科技集团股份有限公司 阵列基板及其制造方法和显示装置
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