JP7250921B2 - 電気光学ディスプレイ - Google Patents
電気光学ディスプレイ Download PDFInfo
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- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/344—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
- G09G3/3446—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices with more than two electrodes controlling the modulating element
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- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
- G09G3/344—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
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- 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
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- G02F1/165—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 translational movement of particles in a fluid under the influence of an applied field
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- G02F1/166—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
- G02F1/167—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 translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
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- 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
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- 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
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- 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
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- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
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- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
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Description
本願は、2018年11月9日に出願された米国仮特許出願第62/757,818号に関連しており、その出願への優先権を主張する。
本発明は、電気光学ディスプレイ装置に関しており、より詳しくは、薄膜トランジスタアレイを含むディスプレイバックプレーンに関している。
粒子ベースの電気泳動ディスプレイは、何年もの間熱心な研究および開発の主題であった。そのようなディスプレイでは、複数の荷電粒子(時折、色素粒子と称される)が、電場の影響下で流体を通って移動する。電場は、典型的に、導電性フィルムまたはトランジスタ(電界効果トランジスタ等)によって提供される。電気泳動ディスプレイは、液晶ディスプレイと比較して、適切な輝度およびコントラスト、広い視認角度、状態双安定性、ならびに低電力消費を有する。しかしながら、そのような電気泳動ディスプレイは、LCDディスプレイより遅い切り替え速度を有し、電気泳動ディスプレイは、典型的に、リアルタイムビデオを表示するためには遅すぎる。さらに、流体の粘性が電気泳動粒子の移動を制限するので、電気泳動ディスプレイは、低温において動きが遅くなり得る。これらの欠点にもかかわらず、電気泳動ディスプレイは、電子書籍(eリーダ)、携帯電話および携帯電話カバー、スマートカード、看板、腕時計、棚のラベル、およびフラッシュドライブ等の製品に日常的に見られ得る。
この発明は、間隔を置かれた第1および第2の素子層と、ディスプレイピクセルの第1および第2の行とを有し、各行は、複数のディスプレイピクセルであって、各ディスプレイピクセルは、ディスプレイピクセルを駆動するために第1の素子層に位置付けられている、ディスプレイピクセルの第1および第2の行と、第2の素子層に位置付けられ、複数のディスプレイピクセルのピクセル電極の一部に重複する導電ラインと、ディスプレイピクセルの第1の行の導電ラインを第2の行の導電ラインに接続している少なくとも1つの導電路とを備えている。
本明細書は、例えば、以下の項目も提供する。
(項目1)
ディスプレイピクセルの第1および第2の行を有する電気光学ディスプレイであって、各行は、
複数のディスプレイピクセルであって、各ディスプレイピクセルは、前記ディスプレイピクセルを駆動するためのピクセル電極を有する、複数のディスプレイピクセルと、
前記複数のディスプレイピクセルの前記ピクセル電極の各々に接続された第1の信号ラインと、
少なくとも1つの導電路と
を備え、
前記少なくとも1つの導電路は、ディスプレイピクセルの前記第1の行の前記第1の信号ラインを前記第2の行の第2の信号ラインに接続している、電気光学ディスプレイ。
(項目2)
前記第1および第2の信号ラインは、前記複数のディスプレイピクセルの前記ピクセル電極に一定の電圧を伝送するように構成されている、項目1に記載の電気光学ディスプレイ。
(項目3)
前記第1の信号ラインに接続されたコンデンサをさらに備えている、項目1に記載の電気光学ディスプレイ。
(項目4)
間隔を置かれた第1および第2の素子層と、ディスプレイピクセルの第1および第2の行とを有する電気光学ディスプレイであって、各行は、
複数のディスプレイピクセルであって、各ディスプレイピクセルは、ピクセル電極を有し、前記ピクセル電極は、前記ディスプレイピクセルを駆動するために前記第1の素子層に位置付けられている、複数のディスプレイピクセルと、
前記第2の素子層に位置付けられた信号ラインであって、前記信号ラインは、前記複数のディスプレイピクセルのピクセル電極の一部分に重複している、信号ラインと、
少なくとも1つの導電路と
を備え、
前記少なくとも1つの導電路は、ディスプレイピクセルの前記第1の行の前記信号ラインを前記第2の行の信号ラインに接続している、電気光学ディスプレイ。
(項目5)
前記導電路は、前記第2の素子層に位置付けられている、項目4に記載の電気光学ディスプレイ。
(項目6)
電気光学媒質をさらに備えている、項目4に記載の電気光学ディスプレイ。
(項目7)
前記電気光学媒質は、回転式二色部材または電気化学媒質である、項目6に記載の電気光学ディスプレイ。
(項目8)
前記電気光学媒質は、電気泳動媒質であり、前記電気泳動媒質は、流体内の複数の荷電粒子を備え、前記複数の荷電粒子は、前記電気光学媒質への電場の印加時、前記流体を通って移動可能である、項目6に記載の電気光学ディスプレイ。
上で示されるように、本明細書中で提示される主題は、容量カップリングを低減させ電気光学ディスプレイの性能を向上させる方法および手段を提供する。
Claims (8)
- 間隔を置かれた第1および第2の素子層と、ディスプレイピクセルの複数の行とを有する電気光学ディスプレイであって、ディスプレイピクセルの前記複数の行のうちの各1つの行は、
複数のディスプレイピクセルであって、前記複数のディスプレイピクセルの各々は、
前記第1の素子層に位置付けられたピクセル電極であって、前記ピクセル電極は、データラインを通じて供給される一連の電圧パルスで前記ディスプレイピクセルを駆動するために構成されている、ピクセル電極と、
前記第2の素子層に位置付けられたVCOM信号ラインであって、前記VCOM信号ラインは、前記ピクセル電極の一部分に重複している、VCOM信号ラインと、
ゲートラインと
を有し、前記ゲートラインは、前記V COM 信号ラインと平行である、複数のディスプレイピクセルと、
ディスプレイピクセルの前記1つの行のVCOM信号ラインを、ディスプレイピクセルの前記複数の行のうち、ディスプレイピクセルの前記1つの行に隣接する行のみのVCOM信号ラインのみに接続している導電路と
を備える、電気光学ディスプレイ。 - 前記導電路は、前記第2の素子層に位置付けられている、請求項1に記載の電気光学ディスプレイ。
- 電気光学媒質をさらに備えている、請求項1に記載の電気光学ディスプレイ。
- 前記電気光学媒質は、回転式二色部材または電気化学媒質である、請求項3に記載の電気光学ディスプレイ。
- 前記電気光学媒質は、電気泳動媒質であり、前記電気泳動媒質は、流体内の複数の荷電粒子を備え、前記複数の荷電粒子は、前記電気光学媒質への電場の印加時、前記流体を通って移動可能である、請求項3に記載の電気光学ディスプレイ。
- 前記V COM 信号ラインと平行な方向に前記導電路から間隔を置かれた第2の導電路をさらに備え、ディスプレイピクセルの前記複数の行は、ディスプレイピクセルの第1の行を含み、前記第2の導電路は、ディスプレイピクセルの前記第1の行の前記VCOM信号ラインをDC源のみに電気的に結合している、請求項1に記載の電気光学ディスプレイ。
- 前記複数のディスプレイピクセルの各々は、前記ピクセル電極と前記VCOM信号ラインとの間に形成された第1の静電容量をさらに備えている、請求項1に記載の電気光学ディスプレイ。
- 前記複数のディスプレイピクセルの各々は、前記データラインと前記VCOM信号ラインとの間に形成された第2の静電容量をさらに備えている、請求項7に記載の電気光学ディスプレイ。
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EP3877808A1 (en) | 2021-09-15 |
CN112955817A (zh) | 2021-06-11 |
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US20200152140A1 (en) | 2020-05-14 |
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