JP2019079025A - 表示装置、表示パネルにおける電圧制御方法及び表示ドライバ - Google Patents
表示装置、表示パネルにおける電圧制御方法及び表示ドライバ 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
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
- G09G3/3655—Details of drivers for counter electrodes, e.g. common electrodes for pixel capacitors or supplementary storage capacitors
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- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
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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
- G09G3/22—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 using controlled light sources
- G09G3/30—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 using controlled light sources using electroluminescent panels
- G09G3/32—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 using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
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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
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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
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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
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- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/136—Liquid crystal cells structurally associated with a semi-conducting layer or substrate, e.g. cells forming part of an integrated circuit
- G02F1/1362—Active matrix addressed cells
- G02F1/1368—Active matrix addressed cells in which the switching element is a three-electrode device
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- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
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- G06F3/0412—Digitisers structurally integrated in a display
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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
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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
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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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
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
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- G09G3/3677—Details of drivers for scan electrodes suitable for active matrices only
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- G09G2310/00—Command of the display device
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- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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Abstract
Description
例えば、表示データを画素領域内の各画素に書き込んでいる間、すべてのレシーバスイッチをONとし、すべてのレシーバ電極がVCOM電圧を供給する場合、表示データを書込み中でない画素に対してもレシーバ電極がVCOM電圧を供給するため、ソースラインとVCOMラインとの間の寄生容量が増加する。これにより、表示データの書込み時間及び消費電力が増加してしまう。
10、20 パネル
101 ゲート信号ジェネレータ
102 ゲートライン
103 ゲートスイッチ
104 寄生容量
105 画素容量
106 ソースライン
107 VCOMライン
108 TFT
1001 画素
1002 タイル
1003 画素領域
11 IC
111 ソース電極
112、212 レシーバ電極
113、213 レシーバスイッチ
114 スイッチ
Claims (22)
- 一以上の画素を含む複数の画素領域を有する表示パネルと、
前記複数の画素領域ごとに設けられ、VCOM電圧を供給する複数のレシーバ電極と、
前記複数の画素領域に対して表示データを書き込むためのデータ書込み信号を送信するデータ書込みラインと、を備え、
前記複数の画素領域のうち一部の画素領域に対する前記表示データの書込み中に、前記複数のレシーバ電極のうち一部のレシーバ電極は前記VCOM電圧を供給しない、表示装置。 - 前記表示データを書込み中の第一の画素領域に対して設けられた第一のレシーバ電極は前記VCOM電圧を供給する、請求項1に記載の表示装置。
- 前記複数の画素領域のそれぞれに対して、前記表示データが順次書き込まれる、請求項2に記載の表示装置。
- 前記表示データは、ゲート走査方向の順に書き込まれる、請求項3に記載の表示装置。
- 前記第一の画素領域に対する前記表示データを書き込んでいる間、所定数のレシーバ電極が前記VCOM電圧を供給する請求項3又は4に記載の表示装置。
- 前記第一の画素領域に前記表示データが書き込まれる前に、前記表示データが書き込まれた画素領域に設けられた第二のレシーバ電極は、前記第一の画素領域に対する前記表示データの書込みが終了するまで、前記VCOM電圧を供給する、請求項3又は4に記載の表示装置。
- 前記表示装置は、さらに前記複数のレシーバ電極のそれぞれに設けられ、前記複数のレシーバ電極の前記VCOM電圧の供給のONとOFFとを切り替える複数のスイッチを備え、
前記複数のスイッチのうち前記一部のレシーバ電極に設けられたスイッチは前記VCOM電圧の供給をOFFにする、請求項1乃至6のいずれか一項に記載の表示装置。 - 前記表示装置は、前記複数のレシーバ電極のそれぞれに設けられ、前記複数のレシーバ電極の前記VCOM電圧の供給のONとOFFとを切り替える複数のスイッチを備え、
前記複数のスイッチのうち、前記第一のレシーバ電極に設けられたスイッチは前記VCOM電圧の供給をONにする、請求項2乃至6のいずれか一項に記載の表示装置。 - 前記複数の画素領域のうち一以上の画素領域によりタイルが形成され、
前記タイルが複数あるとき、前記複数のタイルのそれぞれに対して、前記表示データが順次書き込まれる、請求項2に記載の表示装置。 - 前記表示装置は、前記複数のタイルのそれぞれに対して前記VCOM電圧を供給する前記レシーバ電極ごとに設けられ、前記複数のレシーバ電極の前記VCOM電圧の供給のONとOFFとを切り替える複数のスイッチを備え、
前記複数のスイッチのうち、前記表示データを書込み中の第一のタイルに前記VCOM電圧を供給する前記レシーバ電極に設けられたスイッチは前記VCOM電圧の供給をONにする、請求項9に記載の表示装置。 - 前記複数のスイッチのうち、ゲート走査方向において、前記第一のタイルに前後するタイルに前記VCOM電圧を供給する前記レシーバ電極に設けられたスイッチは、前記VCOM電圧の供給をONにする、請求項10に記載の表示装置。
- 前記表示装置は、Integrated Circuit(IC)を備え、
前記ICは、前記複数のレシーバ電極を備える、請求項1乃至11のいずれか一項に記載の表示装置。 - 前記表示パネルは、前記複数のレシーバ電極を備える、請求項1乃至11のいずれか一項に記載の表示装置。
- 前記一部のレシーバ電極は、ハイインピーダンスである、請求項1乃至13のいずれか一項に記載の表示装置。
- 前記一部のレシーバ電極は、グランド接続される、請求項1乃至13のいずれか一項に記載の表示装置。
- 表示装置が備える表示パネルが有する複数の画素領域に対して供給される電圧の制御方法であって、
前記表示パネルが備える表示データ書込みラインが前記複数の画素領域のうち一部の画素領域に対して表示データを書き込むためのデータ書込み信号を送信し、
前記一部の画素領域に対して前記表示データが書き込まれている間、前記表示装置が備える複数のレシーバ電極のうち一部のレシーバ電極がVCOM電圧を供給しない、電圧制御方法。 - 前記表示データを書込み中の第一の画素領域に対して設けられた第一のレシーバ電極から前記第一の画素領域に前記VCOM電圧を供給する、請求項16に記載の電圧制御方法。
- 前記複数の画素領域のそれぞれに対して、前記表示データを順次書き込む、請求項17に記載の電圧制御方法。
- 前記表示装置が備える複数のスイッチのうち前記一部のレシーバ電極に設けられたスイッチは前記VCOM電圧の供給をOFFにする、請求項16乃至18のいずれか一項に記載の電圧制御方法。
- 前記表示装置が備える複数のスイッチのうち、前記第一のレシーバ電極に設けられたスイッチは前記VCOM電圧の供給をONにする、請求項16乃至18のいずれか一項に記載の電圧制御方法。
- 表示パネルが有する一以上の画素を含む複数の画素領域ごとに設けられ、VCOM電圧を供給する複数のレシーバ電極を備え、
前記複数の画素領域に対して表示データを書き込むためのデータ書込み信号が前記複数の画素領域のうち一部の画素領域に送信され、前記一部の画素領域に対して前記表示データを書込み中、前記複数のレシーバ電極のうち一部のレシーバ電極は前記VCOM電圧を供給しない、表示ドライバ。 - 前記表示データを書込み中の第一の画素領域に対して設けられた第一のレシーバ電極は前記VCOM電圧を供給する、請求項21に記載の表示ドライバ。
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KR1020207007202A KR20200062190A (ko) | 2017-10-19 | 2018-10-18 | 표시 장치, 표시 패널에 있어서의 전압 제어 방법 및 표시 드라이버 |
PCT/IB2018/001273 WO2019106422A1 (ja) | 2017-10-19 | 2018-10-18 | 表示装置、表示パネルにおける電圧制御方法及び表示ドライバ |
EP18883602.7A EP3699680A4 (en) | 2017-10-19 | 2018-10-18 | DISPLAY DEVICE, METHOD OF CONTROLLING VOLTAGE IN A DISPLAY PANEL AND DISPLAY DRIVER |
CN201880057598.4A CN111051977B (zh) | 2017-10-19 | 2018-10-18 | 显示装置、显示面板中的电压控制方法和显示驱动器 |
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