WO2018143590A1 - Dispositif d'affichage à cristaux liquides - Google Patents

Dispositif d'affichage à cristaux liquides Download PDF

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Publication number
WO2018143590A1
WO2018143590A1 PCT/KR2018/000924 KR2018000924W WO2018143590A1 WO 2018143590 A1 WO2018143590 A1 WO 2018143590A1 KR 2018000924 W KR2018000924 W KR 2018000924W WO 2018143590 A1 WO2018143590 A1 WO 2018143590A1
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WO
WIPO (PCT)
Prior art keywords
polarizing film
display panel
module
liquid crystal
transparent
Prior art date
Application number
PCT/KR2018/000924
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English (en)
Korean (ko)
Inventor
윤상조
Original Assignee
주식회사 디스플레이앤라이프
윤상조
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Publication of WO2018143590A1 publication Critical patent/WO2018143590A1/fr

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    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B5/00—Optical elements other than lenses
    • G02B5/30—Polarising elements
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors

Definitions

  • the present invention relates to a liquid crystal display device that provides various image effects that cannot be represented only by an image reproduced on a display panel using a plurality of divided polarizing film patterns.
  • the liquid crystal display of the active matrix driving method displays a moving image using a thin film transistor (hereinafter referred to as TFT) as a switching element.
  • the liquid crystal display device is a display panel, a backlight unit (BLU) that irradiates light on the display panel, and a source drive integrated circuit (IC) for supplying data voltages to data lines of the display panel.
  • a gate drive IC for supplying a gate pulse (or scan pulse) to gate lines (or scan lines) of a display panel, a control circuit for controlling the ICs, and a light source driving circuit for driving a light source of a backlight unit Furnace and the like.
  • the liquid crystal layer is laminated between the lower plate and the upper plate.
  • a polarizing film is attached to each of the upper plate and the lower plate.
  • the liquid crystal layer changes the polarization characteristics of the light incident through the lower polarizing film by using the arrangement of liquid crystal molecules that change according to the applied voltage.
  • the liquid crystal display reproduces the input image by adjusting the data voltage applied to the liquid crystal layer according to the input image.
  • the transparent liquid crystal display device shows an external live image present behind the display panel together with an input image image reproduced in the display panel.
  • the transparent liquid crystal display device has been proposed in Korean Patent Publication No. 10-2014-0073967, Korean Patent Publication No. 10-2011-0118331, Korean Patent Registration No. 10-1394319, and the like.
  • Korean Patent Publication No. 10-2014-0073967 discloses a transparent liquid crystal display device in which a third polarizing film is added under a light guide plate of a backlight unit in addition to two polarizing films adhered to a display panel.
  • the third polarizing film selectively covers the external image so that the external real image is not visible.
  • the transparent liquid crystal display device is thicker and has higher manufacturing cost since a third polarizing film needs to be added and a roll for winding the third polarizing film is required.
  • the transparent liquid crystal display device disclosed in Korean Laid-Open Patent No. 10-2011-0118331 further includes two polarizing films adhered to the display panel and a third polarizing film facing the side of the light guide plate.
  • a window area showing an externally-realistic image is formed in the polarizing film adhered to the display panel and the mechanism member under the backlight unit.
  • This transparent liquid crystal display requires a polarizing film facing the side of the light guide plate, and separately processes an object such as a bottom cover to form a window area. Therefore, this transparent display device has high manufacturing cost.
  • the transparent liquid crystal display device disclosed in Korean Patent Registration No. 10-1394319 adds an optical path control panel on top of the display panel. This transparent liquid crystal display device is thickened due to the optical path control panel and the manufacturing cost is high.
  • the liquid crystal display disclosed in US Patent Application Publication No. US2014 / 0063421 discloses a transparent pixel in which a liquid crystal layer is removed and a transparent spacer is disposed.
  • the aperture ratio of the pixels may be reduced and light leakage may be generated due to the transparent spacer.
  • the present invention provides a liquid crystal display device that can provide various image effects that cannot be represented only by an image reproduced on a display panel using a plurality of divided polarizing film patterns.
  • the liquid crystal display of the present invention includes a display panel module having no polarizing film on an exposed surface where illumination light is visible, and a polarizing film module disposed in front of the exposed surface of the display panel module.
  • the polarizing film module includes a plurality of transparent movable plates that are rotated or lifted by a manual or electric drive, and polarizing films adhered to the transparent movable plates.
  • a liquid crystal display includes a display panel module having no polarizing film on an exposed surface where illumination light is visible and a polarizing film module disposed in front of the exposed surface of the display panel module.
  • the polarizing film module includes a plurality of first polarizing film patterns disposed on a front surface of the transparent substrate, and a plurality of second polarizing film patterns disposed on a rear surface of the transparent substrate.
  • the first polarizing film patterns are spaced apart from another neighboring first polarizing film pattern with a first slit appearing transparent on the transparent substrate.
  • the second polarizing film patterns are spaced apart from another adjacent second polarizing film pattern with a second slit appearing transparent on the transparent substrate.
  • the second polarizing film patterns face the exposed surface of the display panel module.
  • the display panel module includes a display panel including first and second transparent substrates bonded to each other with a liquid crystal layer interposed therebetween, and a backlight unit to irradiate light to the display panel opposite to the second transparent substrate. Only the second transparent substrate of the first and second transparent substrates includes a polarizing film. The first transparent substrate is visible on an exposed surface of the display panel module.
  • the present invention can implement various image effects that cannot be expressed only by an image reproduced on a display panel using a display panel module having no polarizing film on the exposed surface and a polarizing film module having a plurality of divided polarizing film patterns.
  • FIG. 1A through 3 are views illustrating a liquid crystal display according to a first embodiment of the present invention.
  • FIGS. 4 to 6 are views showing various image effects according to the driving plate of the polarizing film device when implementing the polarizing film module based on the electric blind.
  • FIG. 7A to 9 illustrate a liquid crystal display according to a second exemplary embodiment of the present invention.
  • 10 to 12 are diagrams showing an example of an optical illusion phenomenon in which two patterns appear when an overlap area is changed.
  • FIG. 13 and 14 illustrate examples of polarizing film patterns formed on both surfaces of the polarizing film module illustrated in FIG. 7.
  • FIG. 15 is a view illustrating an optical illusion effect in a liquid crystal display including a polarizing film pattern as shown in FIGS. 13 and 14.
  • 16 to 18 are photographic images showing actual product photographs of the liquid crystal display showing the optical illusion effect shown in FIG. 15.
  • the display panel module 10 having no polarizing film on the exposed surface where illumination light is visible, and the polarizing film disposed in front of the exposed surface of the display panel module 10 is provided.
  • Module 20 The polarizing film module 20 includes a plurality of transparent movable plates 22 that are rotated or lifted by manual or power tools, and polarizing films 16 adhered to the transparent movable plates 23.
  • the liquid crystal display of the present invention includes a display panel module 10 and at least one polarizing film module 20 disposed in front of an exposed surface of the display panel module 10. Light of the display panel module 10 is emitted toward the polarizing film module 20 through the exposed surface.
  • the display panel module 10 includes a display panel and a backlight unit for emitting light to the display panel. There is no polarizing film on the exposed surface of the display panel module 10. Without the polarizing film module 20, the observer can see the light of the backlight unit, that is, the illumination light of the white light, on the exposed surface of the display panel module 10 and cannot see the image displayed on the display panel.
  • the display panel includes first and second transparent substrates 11 and 12 bonded to each other with the liquid crystal layer 13 interposed therebetween.
  • the first transparent substrate 11 without the polarizing film is visible on the exposed surface of the display panel module.
  • the image display unit of the display panel includes a pixel array in a matrix form defined by an intersection structure of data lines and gate lines.
  • the pixels may include red (R), green (G), and blue (B) subpixels for color implementation.
  • Each of the pixels may further include white (W) sub pixels in addition to the RGB sub pixels.
  • the pixel array can be divided into a TFT array and a color filter array.
  • a color filter array may be formed on the first transparent substrate 11, and a thin film transistor (TFT) array may be formed on the second transparent substrate 12, but is not limited thereto.
  • TFT thin film transistor
  • a color filter array and a TFT array may be formed on any one of the first and second transparent substrates 11 and 12.
  • the TFT array includes data lines and gate lines that are orthogonal to each other. Pixels arranged in a matrix are defined by the intersection structure of the data lines and the gate lines.
  • the TFT array includes TFTs formed at intersections of data lines and gate lines, a pixel electrode connected to the TFT, a storage capacitor connected to the pixel electrode, and the like.
  • Each of the pixels displays data of the input image by adjusting the amount of light transmitted using liquid crystal molecules driven by the voltage difference between the pixel electrode and the common electrode which charges the data voltage through the TFT.
  • the common voltage Vcom is supplied to the common electrode of the pixels.
  • the color filter array includes color filters and a black matrix.
  • the common electrode is formed on the first transparent substrate 11 in the case of a vertical electric field driving method such as twisted nematic (TN) mode and vertical alignment (VA) mode, and an in-plane switching (IPS) mode and a fringe field (FFS).
  • TN twisted nematic
  • VA vertical alignment
  • IPS in-plane switching
  • FFS fringe field
  • the second transparent substrate 12 may be formed in the TFT array.
  • an alignment layer for setting a pre-tilt angle of the liquid crystal is formed on a surface in contact with the liquid crystal layer 13.
  • the polarizing film 16 is adhered on the back surface of the second transparent substrate 13 facing the backlight unit.
  • the polarizing film 16 may be adhered to the second transparent substrate 13 without being divided, but is not limited thereto.
  • the polarizing film is not adhered to the entire surface of the first transparent substrate 11 facing the polarizing film module 20.
  • the undivided polarizing film is adhered to each of the first and second transparent substrates 11 and 13, but the liquid crystal display of the present invention is a backlight unit in the first and second transparent substrates 11 and 13. It should be noted that the polarizing film 16 is adhered only to the second transparent substrate 13 opposite to.
  • the backlight unit may be implemented as a direct type backlight unit or an edge type backlight unit.
  • the backlight unit emits light onto the display panel using the light source 15 and the optical sheet 14.
  • a light guide plate or a diffusion plate may be disposed between the light source 15 and the optical sheet 14.
  • the display panel and the backlight unit are assembled in the housing 17.
  • the light source 15 may generate light using a plurality of light-emitting diodes (LEDs).
  • the optical sheets 14 diffuse light incident through the light guide plate or the diffusion plate by using the prism sheet and the diffusion sheet, and at an angle perpendicular to the light incident surface of the display panel, that is, the rear surface of the second transparent substrate 13. Refract the path of light.
  • the image display unit of the display panel reproduces the input image by displaying the input image on the pixel array.
  • a data voltage whose voltage varies depending on the gray level of the input image is applied to the pixel electrode, and a common voltage, which is a reference potential of the pixel, is applied to the common electrode.
  • the electric field strength varies in the liquid crystal layer 13 according to the voltage difference between the data voltage and the common voltage.
  • the liquid crystal molecules are driven by the electric field applied to the liquid crystal layer 13.
  • the liquid crystal display modulates the phase of linearly polarized light using the refractive index anisotropy of the liquid crystal.
  • the illumination light of the backlight unit passes through the upper plate of the display panel as it is.
  • An observer may view an image displayed on the display panel only when looking at the display panel through the polarizing film pattern of the polarizing film module 20. Without the polarizing film module 20, the display panel is seen only as an illumination light source.
  • the polarizing film module 20 is spaced apart from the exposed surface of the display panel module 10.
  • the polarizing film module 20 is separated from the display panel module 10 so as to be separated from the display panel module 10 and independently driven.
  • the polarizing film module 20 includes a movable plate 22 to which a plurality of polarizing film patterns 23 are attached, and a movable plate driving unit for rotating or lifting and lowering the movable plate 22.
  • the movable plate driving unit may include a connecting member 24 which connects the movable plates 22 and is driven by a manual or electric drive.
  • the movable plate driver may drive the connecting member 24 to rotate or lift the movable plates 22.
  • the movable plate driving unit may be implemented as an electric blind driving the connecting member 24 by the rotational force of the motor 21, but is not limited thereto.
  • the blade of the motorized blind serves as the movable plate 22.
  • the polarizing film patterns 23 are divided into a plurality and bonded 1: 1 to the movable plates 22.
  • Each of the movable plates 22 may be made of a transparent material through which light passes, for example, transparent glass, transparent acrylic, and a PC (polycarbonate) -based transparent resin.
  • the amount of light passing through the polarizing film pattern 23 varies according to the phase of light passing through the liquid crystal layer 13 of the display panel. Therefore, when the viewer looks at the display panel through the polarizing film patterns 23 and the movable plates 22, an image reproduced on the display panel can be seen. This is because liquid crystal molecules are driven by an electric field of the liquid crystal layer 13 which changes according to the input image, so that the amount of phase delay of light passing through the liquid crystal layer 13 is varied. On the other hand, when the viewer looks at the display panel without the polarizing film pattern, only the illumination light of the backlight unit can be seen.
  • the polarizing film patterns 23 adhered to the movable plate 22 are erected vertically, the polarizing film patterns 23 cover the pixel array of the display panel.
  • the light passing through the liquid crystal layer 23 is incident on the movable plates 22 and the polarizing film patterns 23 via the first transparent substrate 11, an observer may view an image reproduced on the display panel. can see.
  • the polarizing film patterns 23 rise along the movable plates 22 and the gap therebetween becomes narrow.
  • the viewer can see the image reproduced on the upper display surface of the display panel through the movable plates 22 and the polarizing film patterns 23, and the lower display of the display panel without the polarizing film patterns 23 is present.
  • the illumination light (white gradation light) of the backlight unit can be seen from the surface.
  • FIG. 7A to 9 illustrate a liquid crystal display according to a second exemplary embodiment of the present invention.
  • the liquid crystal display of the present invention includes a display panel module 10 and at least one polarizing film module 30 disposed in front of the exposed surface of the display panel module 10. Light of the display panel module 10 is emitted toward the polarizing film module 20 through the exposed surface.
  • the display panel module 10 is substantially the same as the above-described embodiment, the same reference numerals are used and detailed description thereof will be omitted.
  • the illumination light of the backlight unit passes through the upper plate of the display panel as it is.
  • An observer may view an image displayed on the display panel only when the viewer views the display panel through the polarizing film patterns 31 and 32 of the polarizing film module 30. Without the polarizing film module 20, the display panel is seen only as an illumination light source.
  • the first polarizing film module 30 may be bonded or spaced apart from the exposed surface of the display panel module 10.
  • the second polarizing film module 30 may be bonded or spaced apart from the first polarizing film module 30, or may be omitted.
  • Polarizing film patterns 31 and 32 are disposed on the front and / or rear surfaces of each of the polarizing film modules 30. 7A and 7B, an example in which polarizing film patterns 31 and 32 are adhered to front and rear surfaces of each of the polarizing film modules 30 is not limited thereto.
  • the polarizing film pattern may be formed on any one of a front surface and a rear surface of any one of the first and second polarizing film modules 30.
  • have. 8 to 10 show an example in which the second polarizing film module 30 is omitted.
  • the polarizing film module 30 includes a transparent substrate 33, a plurality of first polarizing film patterns 31 adhered on the front surface of the transparent substrate 33, and a plurality of adhered on the back surface of the transparent substrate 33.
  • the second polarizing film patterns 32 face the exposed surface of the display panel module 10.
  • Each of the first and second polarizing film patterns 31 and 32 is spaced apart from each other with a slit 34 and 35 having a predetermined width therebetween. In the slits 34 and 35 there is no polarizing film and the transparent substrate 33 is exposed.
  • the first polarizing film patterns 31 are spaced apart from another neighboring first polarizing film pattern 31 with the first slit 34 visible between the transparent substrate 33 interposed therebetween.
  • the second polarizing film patterns 32 are spaced apart from another neighboring second polarizing film pattern 32 with a second slit 35 visible in the transparent substrate 33 interposed therebetween.
  • the first and second polarizing film patterns 31 and 32 are not limited to those bonded on the transparent substrate 33.
  • the first and second polarizing film patterns 31 and 32 may be moved manually or automatically in a structure similar to that of the first embodiment described above.
  • the image seen by the observer may vary according to the observer's gaze.
  • the observer sees the display panel through the polarizing film 31 or 32 and the slits 34 or 35.
  • the observer sees the display panel through the first and second polarizing films 31 and 32.
  • the observer sees the display panel through the slits 34 and 35 without the polarizing film.
  • the image displayed on the display panel, the shape of the first polarizing film pattern 31 and the shape of the third polarizing film pattern 32, the image viewed by the viewer can be variously produced.
  • the same image viewed by the observer can be seen from the eyes 1 and 2.
  • the observer looks at the display panel through the slits 34 and 35 so that the viewer can see the illumination light of the backlight unit.
  • the positions of the polarizing film patterns 31 and 32 are fixed and the observer moves to move the observer's gaze.
  • the observer sees the display panel through the polarizing film 31 or 32 and the slits 34 or 35.
  • the observer sees the display panel through the first and second polarizing films 31 and 32.
  • the observer sees the display panel through the slits 34 and 35 without the polarizing film.
  • the image displayed on the display panel, the shape of the first polarizing film pattern 31 and the shape of the third polarizing film pattern 32, the image viewed by the viewer can be variously produced.
  • the observer looks at the display panel through the slits 34 and 35 so that the viewer can see the illumination light of the backlight unit.
  • the image is reproduced on the display panel at the gaze 1 and 2 and the illumination light of the backlight unit at the gaze 3 continuously to feel various optical illusions.
  • the observer may feel an optical illusion in which an object moves or an angle of the object changes on the display panel.
  • FIGS. 10 to 13 are diagrams showing an example of an optical illusion phenomenon in which two patterns appear when an overlap area is changed.
  • the pattern 1 is printed on the first transparent film and the pattern 2 is printed on the second transparent film.
  • the overlap area between the patterns changes, the observer feels an optical illusion in which a sphere moves along a constant orbit.
  • the first transparent film is placed on the second transparent film and the first transparent film is moved toward the second transparent film, the overlapping starts between the films.
  • the black pattern area and the white ratio Spheres that are not printed on the first transparent film appear to move as the pattern regions reinforce and cancel each other.
  • the first polarizing film pattern 31 is patterned in the same shape as the pattern 1 in FIG. 10
  • the second polarizing film pattern 32 is patterned in the pattern 2, and a white background is displayed on the display panel.
  • the optical illusion effect of FIG. 10 to FIG. 12 may be obtained as the observer's gaze changes as shown in FIG. 9 or FIG. 10.
  • 13 and 14 illustrate examples of polarizing film patterns 31 and 32 formed on both surfaces of the polarizing film module 30 illustrated in FIG. 7.
  • 13 is an example of the first polarizing film pattern 21.
  • 14 is an example of the second polarizing film pattern 32.
  • the polarizing film patterns 31 and 32 as shown in FIGS. 13 and 14 are formed on the front and rear surfaces of the polarizing film module 30 as shown in FIG. 7, the viewer sees different images as shown in FIG. do.
  • the observer moves in the direction of the arrow as shown in FIG. 9, the observer sequentially sees (A), (B), and (C) in FIG. 10 to see the rotating apple due to the optical illusion effect.
  • 16 to 18 show actual product photographs of the liquid crystal display device which shows this optical illusion effect.
  • the present invention can be applied to indoor and outdoor displays to provide various image effects.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Polarising Elements (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

La présente invention concerne un dispositif d'affichage à cristaux liquides qui comprend : un module de panneau d'affichage dans lequel un film polarisant est absent d'une surface découverte à partir de laquelle de la lumière d'éclairage est visible ; et un module de films polarisants disposé devant la surface découverte du module de panneau d'affichage. Le module de films polarisants comprend une pluralité de plaques mobiles transparentes entraînées en rotation ou élevées par un mécanisme manuel ou motorisé, et des films polarisants collés aux plaques mobiles transparentes respectivement.
PCT/KR2018/000924 2017-01-31 2018-01-22 Dispositif d'affichage à cristaux liquides WO2018143590A1 (fr)

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KR1020170013758A KR101929997B1 (ko) 2017-01-31 2017-01-31 액정표시장치
KR10-2017-0013758 2017-01-31

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JP2010152293A (ja) * 2008-11-20 2010-07-08 Toppan Printing Co Ltd 拡散部材、バックライトユニットおよびディスプレイ装置
KR20110114874A (ko) * 2010-04-14 2011-10-20 변태웅 듀얼 롤 블라인드
KR101291807B1 (ko) * 2010-04-23 2013-07-31 엘지디스플레이 주식회사 하이브리드 형 액정표시장치
US20140063421A1 (en) * 2012-03-16 2014-03-06 Boe Technology Group., Ltd. Transparent liquid crystal display panel and transparent liquid crystal display
KR20160143355A (ko) * 2015-06-05 2016-12-14 주식회사 디스플레이앤라이프 액정표시장치

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Publication number Priority date Publication date Assignee Title
CN102495495B (zh) 2011-10-28 2015-03-11 友达光电股份有限公司 具可透视性的显示装置及其使用的影像显示方法
JP2016224185A (ja) 2015-05-28 2016-12-28 シャープ株式会社 ミラーディスプレイ、ハーフミラープレート及び電子機器

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2010152293A (ja) * 2008-11-20 2010-07-08 Toppan Printing Co Ltd 拡散部材、バックライトユニットおよびディスプレイ装置
KR20110114874A (ko) * 2010-04-14 2011-10-20 변태웅 듀얼 롤 블라인드
KR101291807B1 (ko) * 2010-04-23 2013-07-31 엘지디스플레이 주식회사 하이브리드 형 액정표시장치
US20140063421A1 (en) * 2012-03-16 2014-03-06 Boe Technology Group., Ltd. Transparent liquid crystal display panel and transparent liquid crystal display
KR20160143355A (ko) * 2015-06-05 2016-12-14 주식회사 디스플레이앤라이프 액정표시장치

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