JP2013225119A - ちらつき除去可能なディスプレイパネルの駆動回路 - Google Patents
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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
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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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- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
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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
- G09G3/3674—Details of drivers for scan electrodes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- 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
- G09G3/3685—Details of drivers for data electrodes
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- 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
- G09G3/3696—Generation of voltages supplied to electrode drivers
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/08—Active matrix structure, i.e. with use of active elements, inclusive of non-linear two terminal elements, in the pixels together with light emitting or modulating elements
- G09G2300/0809—Several active elements per pixel in active matrix panels
- G09G2300/0842—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0247—Flicker reduction other than flicker reduction circuits used for single beam cathode-ray tubes
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0271—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
- G09G2320/0276—Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
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Abstract
【解決手段】このちらつき除去可能なディスプレイパネルの駆動回路は、走査駆動回路とデータ駆動回路を包含する。走査駆動回路は複数の走査信号を生成し、ディスプレイパネルの複数の画素構造を走査し、データ駆動回路は複数のデータ信号を生成し、これら画素構造が走査される時、これらデータ信号をこれら画素構造に伝送する。該データ駆動回路がこれらデータ信号を隣り合うこれら画素構造に伝送する時、該データ駆動回路は隣り合うこれら画素構造のデータ信号の準位を、これら画素構造の共同電圧に関して対称に調整する。こうして、本発明は、データ駆動回路により隣り合う複数の画素構造のデータ信号の準位を、これら画素構造の共同電圧に関して対称に調整することにより、表示フレームに発生するちらつきの現象を除去する。
【選択図】図8
Description
10' 画素構造
12' 薄膜トランジスタ
14' 保存コンデンサ
16' 寄生容量
18' 共同電極
20' 駆動チップ
本発明:
1 ディスプレイパネル
10 画素構造
12 トランジスタ
14 保存コンデンサ
2 駆動回路
20 走査駆動回路
30 データ駆動回路
32 補償回路
320 補償ユニット
322 調整回路
324 切り換え回路
326 第1増幅ユニット
328 第2増幅ユニット
34 ガンマ電圧生成回路
340 分圧回路
342 ガンマ電圧選択ユニット
36 デジタルアナログ変換回路
38 バッファユニット
40 入出力インタフェース
42 ガンマ曲線データレジスタ
44 表示メモリ
46 シフトレジスタ
48 バッファ回路
50 演算回路
Claims (9)
- ちらつき除去可能なディスプレイパネルの駆動回路において、
走査駆動回路であって、複数の走査信号を生成し、該ディスプレイパネルの複数の画素構造を走査する、上記走査駆動回路と、
データ駆動回路であって、複数のデータ信号を生成し、これら画素構造が走査される時、これらデータ信号をこれら画素構造に伝送する、上記データ駆動回路と、
を包含し、該データ駆動回路がこれらデータ信号を隣り合うこれら画素構造に伝送する時、該データ駆動回路は隣り合うこれら画素構造の該データ信号の準位を、これら画素構造の共同電圧に関して対称に調整することを特徴とする、ちらつき除去可能なディスプレイパネルの駆動回路。 - 請求項1記載のちらつき除去可能なディスプレイパネルの駆動回路において、該データ駆動回路は、
補償信号を生成する補償回路と、
ガンマ電圧生成回路であって、該補償信号とガンマ曲線データに基づき複数のガンマ電圧を生成する、上記ガンマ電圧生成回路と、
複数のデジタルアナログ変換回路であって、複数の表示信号に基づき、これらガンマ電圧の一部のガンマ電圧を選択して出力することで、該ディスプレイパネルを駆動する、上記複数のデジタルアナログ変換回路と、
を包含し、該補償回路の該補償信号は、これらガンマ電圧の信号準位を調整し、これにより隣り合うこれら画素構造の該データ信号の準位を、これら画素構造の該共同電圧に関して対称に調整することを特徴とする、ちらつき除去可能なディスプレイパネルの駆動回路。 - 請求項2記載のちらつき除去可能なディスプレイパネルの駆動回路において、該データ駆動回路はさらに、
複数のバッファユニットであって、これらデジタルアナログ変換回路に対応しこれらデジタルアナログ変換回路が出力するこれらガンマ電圧に基づき、複数のデータ信号を生成して、該ディスプレイパネルを駆動する、上記複数のバッファユニットを包含することを特徴とする、ちらつき除去可能なディスプレイパネルの駆動回路。 - 請求項2記載のちらつき除去可能なディスプレイパネルの駆動回路において、該ガンマ電圧生成回路は、
分圧回路であって、該補償信号に基づいて複数の分圧信号を生成する、上記分圧回路と、
ガンマ電圧選択ユニットであって、該分圧回路に接続され、並びに該ガンマ曲線データに基づいてこれら分圧信号の一部の分圧信号を選択してこれらガンマ電圧を生成する、上記ガンマ電圧選択ユニットと、
を包含することを特徴とする、ちらつき除去可能なディスプレイパネルの駆動回路。 - 請求項2記載のちらつき除去可能なディスプレイパネルの駆動回路において、さらに、入出力インタフェースであって、該ガンマ曲線データと該表示信号を受け取る、上記入出力インタフェースと、
ガンマ曲線データレジスタであって、該ガンマ曲線データを該ガンマ電圧生成回路に伝送する、上記ガンマ曲線データレジスタと、
を包含することを特徴とする、ちらつき除去可能なディスプレイパネルの駆動回路。 - 請求項5記載のちらつき除去可能なディスプレイパネルの駆動回路において、さらに、表示メモリであって、該入出力インタフェースに接続され、並びに該表示信号を保存する、上記表示メモリと、
シフトレジスタであって、該表示メモリに接続され、並びに該表示信号を受け取り並びにシフトする、上記シフトレジスタと、
バッファ回路であって、該シフトレジスタに接続され、並びに該表示信号をバッファしてこれらデジタルアナログ変換回路に伝送する、上記バッファ回路と、
を包含することを特徴とする、ちらつき除去可能なディスプレイパネルの駆動回路。 - 請求項4記載のちらつき除去可能なディスプレイパネルの駆動回路において、該補償回路は、
補償信号を生成する、補償ユニットと、
調整回路であって、電源電圧を受け取り、並びに該電源電圧を分圧して複数の調整信号を生成する、上記調整回路と、
切り換え回路であって、該調整回路に接続され、並びにこれら調整信号に基づき、これら調整信号を選択して第1参考電圧と第2参考電圧を生成し、並びに該第1参考電圧と該第2参考電圧を該分圧回路に伝送し、該分圧回路に、該第1参考電圧と該第2参考電圧に基づき、これら分圧信号を生成させる、上記切り換え回路と、
を包含することを特徴とする、ちらつき除去可能なディスプレイパネルの駆動回路。 - 請求項7記載のちらつき除去可能なディスプレイパネルの駆動回路において、該ガンマ電圧生成回路は、さらに、
第1増幅ユニットであって、該切り換え回路に接続され、並びに該第1参考電圧をバッファして該分圧回路に伝送する、上記第1増幅ユニットと、
第2増幅ユニットであって、該切り換え回路に接続され、並びに該第2参考電圧をバッファして該分圧回路に伝送する、上記第2増幅ユニットと、
を包含することを特徴とする、ちらつき除去可能なディスプレイパネルの駆動回路。 - 請求項2記載のディスプレイパネルの駆動回路において、さらに、演算回路であって、該ガンマ曲線データと該補償信号を演算して演算信号を生成し、並びに該演算信号を該ガンマ電圧生成回路に伝送し、これらガンマ電圧を生成させる、上記演算回路を包含することを特徴とする、ちらつき除去可能なディスプレイパネルの駆動回路。
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JP2015148816A (ja) * | 2012-04-23 | 2015-08-20 | ▲し▼創電子股▲ふん▼有限公司 | ちらつき除去可能なディスプレイパネルの駆動回路 |
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JP6058289B2 (ja) * | 2012-06-05 | 2017-01-11 | サターン ライセンシング エルエルシーSaturn Licensing LLC | 表示装置、撮像装置及び階調電圧生成回路 |
CN103794187B (zh) * | 2014-01-27 | 2016-06-01 | 北京京东方光电科技有限公司 | 伽马参考电压产生装置及显示器 |
TWI562124B (en) * | 2014-09-30 | 2016-12-11 | Au Optronics Corp | Pixel circuit and method for driving the same |
CN104361873B (zh) * | 2014-11-18 | 2017-03-15 | 深圳市华星光电技术有限公司 | 显示参数的调整方法、装置及液晶显示系统 |
TWI665654B (zh) * | 2018-04-11 | 2019-07-11 | 立錡科技股份有限公司 | Liquid crystal display and gamma voltage correction method thereof |
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CN102867493A (zh) | 2013-01-09 |
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KR20150037803A (ko) | 2015-04-08 |
KR101763264B1 (ko) | 2017-07-31 |
CN105321489A (zh) | 2016-02-10 |
KR101683945B1 (ko) | 2016-12-07 |
KR20170017980A (ko) | 2017-02-15 |
CN102867493B (zh) | 2016-08-03 |
JP5760028B2 (ja) | 2015-08-05 |
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