WO2018179772A1 - Cellule à cristaux liquides réfléchissant - Google Patents

Cellule à cristaux liquides réfléchissant Download PDF

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Publication number
WO2018179772A1
WO2018179772A1 PCT/JP2018/002619 JP2018002619W WO2018179772A1 WO 2018179772 A1 WO2018179772 A1 WO 2018179772A1 JP 2018002619 W JP2018002619 W JP 2018002619W WO 2018179772 A1 WO2018179772 A1 WO 2018179772A1
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WO
WIPO (PCT)
Prior art keywords
polarizing plate
liquid crystal
front surface
absorbing layer
crystal cell
Prior art date
Application number
PCT/JP2018/002619
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English (en)
Japanese (ja)
Inventor
持塚　多久男
Original Assignee
株式会社村上開明堂
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 株式会社村上開明堂 filed Critical 株式会社村上開明堂
Priority to JP2019600115U priority Critical patent/JP3225094U/ja
Publication of WO2018179772A1 publication Critical patent/WO2018179772A1/fr

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    • 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
    • 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 reflective liquid crystal cell.
  • Patent Document 1 describes a liquid crystal antiglare mirror that can be used as a monitor when the power is on and can be used as a mirror when the power is off.
  • the liquid crystal antiglare mirror includes a first polarizing plate (reflective polarizing plate) that reflects incident light, a liquid crystal unit disposed on the front side of the first polarizing plate, and a second plate formed on the front side of the liquid crystal unit. And a polarizing plate (absorptive polarizing plate).
  • the present invention has been made in view of these points, and provides a reflective liquid crystal cell that can reduce the distortion of a reflected image when used as a mirror.
  • the present invention provides a first polarizing plate that reflects incident light, a liquid crystal unit disposed on the front side of the first polarizing plate, and a front side of the liquid crystal unit.
  • a second polarizing plate that transmits a predetermined polarization component to the liquid crystal unit and transmits incident light from the liquid crystal unit, and a transparent waviness absorbing layer made of resin, disposed on the front surface of the second polarizing plate.
  • a cover glass disposed on the front surface of the swell absorbing layer, the swell absorbing layer bonds the second polarizing plate and the cover glass, and swells on the front surface of the second polarizing plate. It is characterized by absorbing.
  • the swell of the front surface of the second polarizing plate is absorbed by the swell absorbing layer, and the front surface of the swell absorbing layer is flattened by the cover glass.
  • the distortion of the reflected image when used as a mirror can be reduced.
  • the present invention provides a first polarizing plate that reflects incident light, a liquid crystal unit disposed on a front side of the first polarizing plate, a front side of the liquid crystal unit, and a predetermined polarization component as the liquid crystal
  • a second polarizing plate that transmits the incident light from the liquid crystal unit and a transparent waviness absorbing layer made of resin and disposed on the front surface of the second polarizing plate, and absorbs the waviness.
  • the layer has a flat front surface and absorbs waviness on the front surface of the second polarizing plate.
  • the waviness of the front surface of the second polarizing plate is absorbed by the waviness absorbing layer, and the front surface of the waviness absorbing layer is flat. Thereby, the distortion of the reflected image when used as a mirror can be reduced.
  • the distortion of the reflected image when used as a mirror can be reduced.
  • FIG. 1 is a perspective view showing a reflective liquid crystal cell and a liquid crystal monitor according to a first embodiment of the present invention. It is sectional drawing which shows the reflection type liquid crystal cell and liquid crystal monitor which concern on 1st embodiment. It is an expanded sectional view showing the 2nd polarizing plate concerning a first embodiment. It is a figure which shows the comparative example of contrast observation, Comprising: (a) is a top view, (b) is sectional drawing. It is a figure which shows the schematic Example of contrast observation, Comprising: (a) is a top view and sectional drawing. It is sectional drawing which shows the reflection type liquid crystal cell which concerns on 2nd embodiment.
  • the reflective liquid crystal cell 1 includes a first polarizing plate 2, a liquid crystal unit 3, a second polarizing plate 4, a swell absorbing layer 5, and a cover glass 6. And is mainly composed.
  • the reflective liquid crystal cell 1 is a plate-like member having a rectangular shape in plan view, and is a member that becomes almost transparent when the liquid crystal unit 3 is energized and functions as a mirror when the energization of the liquid crystal unit 3 is interrupted.
  • a liquid crystal monitor M is disposed on the back surface of the reflective liquid crystal cell 1.
  • a monitor image of a camera or the like can be displayed via the reflective liquid crystal cell 1 in a state where the power of the reflective liquid crystal cell 1 and the liquid crystal monitor M is turned on.
  • the reflective liquid crystal cell 1 can be used for, for example, a smartphone, an electronic mirror for a vehicle, a game machine, and the like by disposing the liquid crystal monitor M on the back surface.
  • the reflective liquid crystal cell 1 can also be used as an antiglare mirror for a vehicle that can adjust the reflectance. Instead of the liquid crystal monitor M, another display device may be arranged.
  • the surface side of the reflective liquid crystal cell 1 that is visually recognized by the user is referred to as “front surface”, and the surface opposite to the “front surface” is referred to as “back surface”.
  • the first polarizing plate (reflective polarizing plate) 2 is a thin film having a rectangular shape in a plan view that transmits any one of orthogonal polarization components and reflects the other.
  • the first polarizing plate 2 is disposed on the most back side in the reflective liquid crystal cell 1.
  • the first polarizing plate 2 may be, for example, a DBEF series reflective polarizing film manufactured by 3M.
  • the plate thickness of the first polarizing plate 2 can be appropriately set between about 50 to 300 ⁇ m, for example. In the present embodiment, the thickness of the first polarizing plate 2 is set to 100 ⁇ m.
  • the size of the undulation (unevenness) of the front surface 2a of the first polarizing plate 2 is, for example, less than 1.0 ⁇ m. . Since the first polarizing plate 2 has a function of reflecting incident light, the size of the undulation of the front surface 2a affects the reflected image. That is, when the undulation of the front surface 2a of the first polarizing plate 2 is large, there is a problem that the outline of the reflected image is blurred. However, since the first polarizing plate 2 is a softer material than the second polarizing plate 4, the first polarizing plate 2 has a property of easily reducing the swell.
  • the liquid crystal unit 3 is a plate-like member disposed on the front surface 2 a of the first polarizing plate 2.
  • the liquid crystal part 3 has substantially the same planar shape as the first polarizing plate 2.
  • the liquid crystal unit 3 functions as a light transmission shutter.
  • the liquid crystal unit 3 is configured by enclosing a liquid crystal between a pair of glass substrates (not shown).
  • the type of the liquid crystal unit 3 is not particularly limited. For example, a TN (Twisted nematic) type liquid crystal can be used.
  • the liquid crystal unit 3 exhibits optical rotation with respect to incident light when no voltage is applied between the transparent electrodes of the glass substrate (non-application).
  • the liquid crystal alignment is such that the optical rotatory power developed when a voltage is applied between the transparent electrodes (application) is eliminated.
  • the second polarizing plate (absorptive polarizing plate) 4 is a thin film member disposed on the front surface 3 a of the liquid crystal unit 3.
  • the second polarizing plate 4 emits a specific polarization component of incident light incident from the front side to the liquid crystal unit 3 as transmitted light and transmits a specific polarization component of incident light incident from the liquid crystal unit 3 to the front side.
  • the second polarizing plate 4 has substantially the same planar shape as the first polarizing plate 2.
  • a polarizing plate manufactured by Polatechno Co., Ltd. can be used as the second polarizing plate 4.
  • undulations irregularities
  • the front surface 4a of the second polarizing plate 4 has a relatively large undulation. Further, “roughness” is formed on the front surface 4a as fine irregularities. For convenience of explanation, the waviness in each figure is drawn larger than the actual dimensions.
  • the undulation size h of the front surface 4a of the second polarizing plate 4 (the difference between the most protruding portion and the most recessed portion in a predetermined length in the plane direction of the polarizing plate) is about 1.0 to 2.5 ⁇ m.
  • the back surface 4b of the second polarizing plate 4 is flattened by being bonded and pressure-bonded to the glass substrate of the liquid crystal unit 3 through an adhesive layer (PSA: Pressure-sensitive adhesive) (not shown).
  • the swell absorbing layer 5 absorbs the undulation and “roughness” of the front surface 4 a of the second polarizing plate 4 and is a transparent curable resin that bonds the second polarizing plate 4 and the cover glass 6. Is a layer. In other words, the swell absorbing layer 5 can enhance the flatness by filling the undulation of the front surface 4a and the unevenness of the “roughness”.
  • OCA Optical Clear Adhesive
  • any of urethane, acrylic and epoxy materials can be used.
  • the thickness of the swell absorbing layer 5 can be appropriately set between 1 and 100 ⁇ m. When the thickness of the swell absorbing layer 5 is less than 1 ⁇ m, it becomes difficult to absorb the swell. Further, when the thickness of the swell absorbing layer 5 exceeds 100 ⁇ m, refraction increases and distortion of the reflected image increases, which is not preferable.
  • the transmittance of the swell absorbing layer 5 is preferably 92% or more.
  • the swell absorbing layer 5 uses OCA.
  • the swell absorbing layer 5 may be a transparent resin layer that absorbs the swell of the front surface 4 a of the second polarizing plate 4 and bonds the second polarizing plate 4 and the cover glass 6. Other materials may be used.
  • the cover glass 6 is a plate-like glass disposed on the front surface 5 a of the swell absorbing layer 5.
  • the cover glass 6 has substantially the same shape as the first polarizing plate 2, the liquid crystal unit 3, the second polarizing plate 4, and the swell absorbing layer 5.
  • the thickness of the cover glass 6 can be appropriately set, for example, between about 0.5 and 2.0 mm. Further, the undulations of the front surface 6a and the back surface 6b of the cover glass 6 are both less than about 1.0 ⁇ m.
  • a frame-shaped decorative portion K is formed on the peripheral edge portion of the front surface 6 a of the cover glass 6.
  • the decorative portion K is colored (for example, black) by printing on the front surface 6a.
  • the reflective liquid crystal cell 1 is formed by laminating layers.
  • the second polarizing plate 4, the swell absorbing layer 5 and the cover glass 6 are laminated with each other and then integrated by a roller means or a pressing means (vacuum pressing means). Further, when the swell absorbing layer 5 is formed, it may be sprayed with a spray to form a flat layer by laminating thin layers.
  • FIG. 4A and 4B are diagrams illustrating a comparative example of contrast observation, in which FIG. 4A is a plan view and FIG. 4B is a cross-sectional view.
  • FIG. 5 is a diagram showing a schematic example of contrast observation, in which (a) is a plan view and a sectional view.
  • Comparative Example 10 is configured by laminating the first polarizing plate 2 and the second polarizing plate 4 from the back side.
  • the model Example 20 is the 1st polarizing plate 2, the 2nd polarizing plate 4, the waviness absorption layer 5, and the cover glass 6 from the back side. It consists of For convenience of comparison observation, neither the comparative example 10 nor the schematic example 20 is provided with the liquid crystal part 3.
  • Comparative Example 10 and Schematic Example 20 were arranged side by side on a table, and a reflection image of a fluorescent lamp lit on the ceiling was observed.
  • the bands extending vertically in FIGS. 4A and 5A are the reflected images N1 and N2 of the fluorescent lamp. That is, the reflection images N1 and N2 shown in the comparative example 10 and the schematic example 20 are images of the same fluorescent lamp.
  • the outline of the reflected image N1 of the fluorescent lamp is distorted.
  • the outline of the reflected image N1 is blurred and blurred. This is considered to be the distortion of the reflected image N1 due to the undulation and “roughness” of the front surface 4a of the second polarizing plate 4 of Comparative Example 10.
  • the outline of the reflected image N2 of the fluorescent lamp is not distorted.
  • the outline of the reflected image N1 is sharp. That is, the waviness and “roughness” of the front surface 4 a of the second polarizing plate 4 are absorbed by the waviness absorbing layer 5, and the front surface 5 a of the waviness absorbing layer 5 is also flattened by the cover glass 6. It is thought that distortion can be reduced.
  • the waviness and “roughness” of the front surface 4 a of the second polarizing plate 4 are absorbed by the waviness absorbing layer 5, and the front surface 5 a of the waviness absorbing layer 5 is bonded to the cover glass 6. Therefore, it becomes a small flat surface such as a swell.
  • a clear image can be displayed when the reflective liquid crystal cell 1 is used as a monitor, and distortion of the reflected image when the reflective liquid crystal cell 1 is used as a mirror can be reduced.
  • the frame-shaped decoration part K is formed in the peripheral part of the cover glass 6, the design property of the reflective liquid crystal cell 1 can be improved. Further, the decorative portion K can cover the frame-shaped weir member, the power feeding unit, and the liquid crystal injection port (not shown) provided on the outer peripheral edge of the liquid crystal unit 3.
  • the waviness of the second polarizing plate 4 of this embodiment is larger than the waviness of the first polarizing plate 2.
  • the size of the undulation is less than 1.0 ⁇ m.
  • the waviness of the front surface of the second polarizing plate is approximately 1.0 ⁇ m or more.
  • the second polarizing plate When the second polarizing plate is simply used for a liquid crystal monitor, the second polarizing plate only transmits incident light, and thus the undulation on the front surface of the second polarizing plate does not significantly affect the displayed image. Therefore, if the current second polarizing plate is used only for a liquid crystal monitor, the displayed image is not greatly affected even if the undulation of the front surface of the second polarizing plate is 1.0 ⁇ m or more.
  • the function as a mirror is developed as in this embodiment, if the waviness of the second polarizing plate is large, the outline of the reflected image N1 is distorted as shown in FIG. There is a problem that it cannot be used as a mirror.
  • it is desired to clarify the reflected image because it relates to the rearward confirmation of the vehicle.
  • the second polarizing plate is a harder material than the first polarizing plate, it is difficult to eliminate the waviness on the front surface by pressing means or the like.
  • the present invention has reached the idea of absorbing the undulation of the front surface 4a of the second polarizing plate 4 by providing the undulation absorbing layer 5. That is, the undulation and “roughness” of the front surface 4 a of the second polarizing plate 4 are filled with the swell absorbing layer 5.
  • the subject of this invention is a subject peculiar to this invention which generate
  • the reflective liquid crystal cell 1A includes a first polarizing plate 2, a liquid crystal unit 3, a second polarizing plate 4, and a swell absorbing layer 5 ⁇ / b> A. That is, the reflective liquid crystal cell 1A is different from the first embodiment in that the cover glass 6 is not disposed.
  • the first polarizing plate 2, the liquid crystal unit 3, and the second polarizing plate 4 of the reflective liquid crystal cell 1A are the same as those in the first embodiment.
  • the waviness absorbing layer 5A is a transparent resin layer that absorbs waviness on the front surface 4a of the second polarizing plate 4 and has a flat front surface 5a.
  • the waviness absorbing layer 5 ⁇ / b> A is bonded to the second polarizing plate 4.
  • the front surface 5a of the waviness absorbing layer 5A is flattened by waviness being eliminated by roller means or pressing means.
  • the undulation of the front surface 5a is less than 1.0 ⁇ m.
  • the reflection-type liquid crystal cell 1A according to the second embodiment formed in this way can provide substantially the same effect as the first embodiment. That is, the cover glass 6 may be omitted as in the second embodiment, and the swell absorbing layer 5A may be exposed. Even in this case, since the undulation of the front surface 5a of the swell absorbing layer 5A is small and flat, the distortion of the reflected image when the reflective liquid crystal cell 1A is used as a mirror can be reduced. Further, since the second polarizing plate 4 is a relatively hard material, it is difficult to flatten the front surface 4a. However, since the swell absorbing layer 5A is a relatively soft material, the undulation of the front surface 5a of the swell absorbing layer 5A.
  • the flatness can be easily increased by reducing the thickness.
  • the reflection type liquid crystal cell 1A according to the second embodiment was also observed in the same manner as in the first embodiment, but the reflected image N2 ((a of FIG. As in (), the reflection image was small in distortion.
  • a hard coat layer may be provided by applying a coating for suppressing surface reflection.
  • first polarizing plate (reflective polarizing plate) 3 Liquid crystal part 4 Second polarizing plate (absorptive polarizing plate) 5 Swell absorption layer 6 Cover glass

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)
  • Polarising Elements (AREA)

Abstract

Cette cellule à cristaux liquides réfléchissant est caractérisée en ce qu'elle comprend : une première plaque de polarisation (2) qui transmet l'une des composantes de polarisation qui sont perpendiculaires l'une à l'autre, tout en réfléchissant l'autre; une unité à cristaux liquides (3) qui est disposée sur le côté de la surface avant (2a) de la première plaque de polarisation (2); une seconde plaque de polarisation (4) qui est disposée sur le côté de la surface avant (3a) de l'unité de cristaux liquides (3), et qui transmet une composante de polarisation spécifique de la lumière incidente incidente sur celle-ci à l'unité à cristaux liquides (3), tout en transmettant la lumière incidente provenant de l'unité à cristaux liquides (3); une couche d'absorption de pilonnement transparente (5) qui est formée à partir d'une résine et qui est disposée sur la surface avant (4a) de la seconde plaque de polarisation (4); et un verre de recouvrement (6) qui est disposé sur la surface avant (5a) de la couche d'absorption de pilonnement (5). Cette cellule à cristaux liquides réfléchissant est également caractérisée en ce que la couche d'absorption de pilonnement (5) lie la seconde plaque de polarisation (4) et le verre de couverture (6) l'une à l'autre et absorbe les minéraux lourds de la surface avant (4a) de la seconde plaque de polarisation (4).
PCT/JP2018/002619 2017-03-27 2018-01-29 Cellule à cristaux liquides réfléchissant WO2018179772A1 (fr)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2019600115U JP3225094U (ja) 2017-03-27 2018-01-29 反射型液晶セル

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JP2017-061460 2017-03-27
JP2017061460 2017-03-27

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WO2018179772A1 true WO2018179772A1 (fr) 2018-10-04

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021100846A (ja) * 2019-10-30 2021-07-08 パナソニックＩｐマネジメント株式会社 表示システム
CN113805375A (zh) * 2020-06-11 2021-12-17 京东方科技集团股份有限公司 显示装置及其驱动方法、制备方法

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6119219U (ja) * 1984-07-06 1986-02-04 株式会社東海理化電機製作所 防眩ミラ−
WO1999004315A1 (fr) * 1997-07-18 1999-01-28 Citizen Watch Co., Ltd. Affichage a cristaux liquides
JP2009008881A (ja) * 2007-06-28 2009-01-15 Murakami Corp 液晶防眩ミラー
US20150049283A1 (en) * 2013-08-19 2015-02-19 Samsung Electronics Co., Ltd. Display apparatus and control method thereof
US20150277203A1 (en) * 2014-04-01 2015-10-01 Gentex Corporation Automatic display mirror assembly
WO2017038242A1 (fr) * 2015-08-31 2017-03-09 ソニー株式会社 Dispositif optique, dispositif d'affichage et dispositif électronique

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6119219U (ja) * 1984-07-06 1986-02-04 株式会社東海理化電機製作所 防眩ミラ−
WO1999004315A1 (fr) * 1997-07-18 1999-01-28 Citizen Watch Co., Ltd. Affichage a cristaux liquides
JP2009008881A (ja) * 2007-06-28 2009-01-15 Murakami Corp 液晶防眩ミラー
US20150049283A1 (en) * 2013-08-19 2015-02-19 Samsung Electronics Co., Ltd. Display apparatus and control method thereof
US20150277203A1 (en) * 2014-04-01 2015-10-01 Gentex Corporation Automatic display mirror assembly
WO2017038242A1 (fr) * 2015-08-31 2017-03-09 ソニー株式会社 Dispositif optique, dispositif d'affichage et dispositif électronique

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2021100846A (ja) * 2019-10-30 2021-07-08 パナソニックＩｐマネジメント株式会社 表示システム
CN113805375A (zh) * 2020-06-11 2021-12-17 京东方科技集团股份有限公司 显示装置及其驱动方法、制备方法

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