JP2016133810A - 表示装置 - 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
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3696—Generation of voltages supplied to electrode drivers
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- 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
- G09G3/22—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]
- G09G3/3208—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] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3225—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] organic, e.g. using organic light-emitting diodes [OLED] using an active matrix
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- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/001—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background
- G09G3/003—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background to produce spatial visual effects
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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]
- G09G3/3208—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] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3266—Details of drivers for scan electrodes
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- G—PHYSICS
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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
- G09G3/3648—Control of matrices with row and column drivers using an active matrix
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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
- G09G3/3674—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
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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
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0243—Details of the generation of driving signals
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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
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0267—Details of drivers for scan electrodes, other than drivers for liquid crystal, plasma or OLED displays
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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
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0278—Details of driving circuits arranged to drive both scan and data electrodes
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0283—Arrangement of drivers for different directions of scanning
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- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0264—Details of driving circuits
- G09G2310/0289—Details of voltage level shifters arranged for use in a driving circuit
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- G09G2320/00—Control of display operating conditions
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- G09G2320/00—Control of display operating conditions
- G09G2320/02—Improving the quality of display appearance
- G09G2320/0223—Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes
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- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
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- G09G2320/103—Detection of image changes, e.g. determination of an index representative of the image change
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- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
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Abstract
【解決手段】表示装置で、コントローラは、制御信号を生成し、映像データを出力し、補償回路は、コントローラから制御信号の中で一部を受信して補償信号を生成する。電圧発生回路は、入力電圧を駆動電圧に変換し、補償信号に応答して1つのフレーム区間内で駆動電圧の電圧レベルを増加又は減少させる。駆動部は、コントローラから制御信号及び映像データを受信し、電圧発生回路から駆動電圧を受信してパネル駆動信号を生成する。表示パネルは、駆動部からパネル駆動信号を受信して映像を表示する。
【選択図】図1
Description
400スイッチングパネル
410第1基板
420第2基板
430液晶層
431液晶分子
411第1ベース基板
412第1電極層
421第2ベース基板
422第2電極層
Claims (16)
- 制御信号を受信し、映像データを出力するコントローラと、
前記コントローラから前記制御信号の中で一部を受信して補償信号を生成する補償回路と、
入力電圧を駆動電圧に変換し、前記補償信号に応答して1つのフレーム周期内で前記駆動電圧の電圧レベルを増加又は減少させる電圧発生回路と、
前記コントローラから前記制御信号及び前記映像データを受信し、前記電圧発生回路から前記駆動電圧を受信してパネル駆動信号を生成する駆動部と、を備え、
前記駆動部から前記パネル駆動信号を受信して映像を表示する表示パネルを含む表示装置。 - 前記駆動部は、
前記駆動電圧に基づいてゲート信号を生成するゲート駆動部と、
前記映像データをデータ電圧に変換するデータ駆動部と、を含む請求項1に記載の表示装置。 - 前記補償信号は、パルス幅の変調信号を含み、
前記補償回路は、前記パルス幅の変調信号のデューティ比を調節して前記電圧発生回路に印加することを特徴とする請求項2に記載の表示装置。 - 前記電圧発生回路は、
前記駆動電圧の中で前記ゲート信号のハイレベルを決定するゲートオン電圧を生成するオン電圧発生部と、
前記駆動電圧の中で前記ゲート信号のローレベルを決定するゲートオフ電圧を生成するオフ電圧発生部と、を含むことを特徴とする請求項3に記載の表示装置。 - 前記表示パネルは、第1方向に配列される第1乃至第nゲートライン(nは1以上の整数)を含み、
前記電圧発生回路は、前記第1ゲートライン及び前記第nゲートラインの中いずれか1つに隣接して配置されることを特徴とする請求項4に記載の表示装置。 - 前記第1乃至第nゲートラインは、前記第1方向に順次的にスキャンされ、
前記オン電圧発生部の1つのフレーム区間の間に前記ゲートオン電圧を基準ゲートオン電圧から最大ゲートオン電圧まで非線形的に増加させる第1ポジティブ電圧発生部を含み、
前記オフ電圧発生部は、上記したフレーム区間の間に前記ゲートオフ電圧を基準ゲートオフ電圧から最小ゲートオフ電圧まで非線形的に減少させる第2ポジティブ電圧発生部を含むことを特徴とする請求項5に記載の表示装置。 - 前記第1ポジティブ電圧発生部は、
前記パルス幅の変調信号のデューティ比によって前記ゲートオン電圧を前記基準ゲートオン電圧から前記最大ゲートオン電圧まで増加させる昇圧部と、
補償制御信号に応答して前記ゲートオン電圧を前記基準ゲートオン電圧に放電させる放電部と、を含むことを特徴とする請求項6に記載の表示装置。 - 前記第2ポジティブ電圧発生部は、
前記パルス幅の変調信号のデューティ比によって前記ゲートオフ電圧を前記基準ゲートオフ電圧から前記最小ゲートオフ電圧までダウンさせる減圧部と、
前記補償制御信号に応答して前記ゲートオフ電圧を前記基準ゲートオフ電圧にブースティングさせるブースティング部と、を含むことを特徴とする請求項6に記載の表示装置。 - 前記第1乃至第nゲートラインは、前記第1方向と反対の第2方向に順次的にスキャンされ、
前記オン電圧発生部は、1つのフレーム区間の間に前記ゲートオン電圧を最大ゲートオン電圧から基準ゲートオン電圧まで非線形的に減少させる第1ネガティブ電圧発生部を含み、
前記オフ電圧発生部は、上記したフレーム区間の間に前記ゲートオフ電圧を最小ゲートオフ電圧から基準ゲートオフ電圧まで非線形的に増加させる第2ネガティブ電圧発生部を含むことを特徴とする請求項5に記載の表示装置。 - 前記補償信号は、前記ゲートオン電圧及び前記ゲートオフ電圧の補償時点を決定する補償制御信号をさらに含み、
前記補償制御信号は、上記したフレーム区間内で順次的に発生されるハイ区間及びロー区間を含むことを特徴とする請求項5に記載の表示装置。 - 前記補償回路は、前記制御信号の中で前記ゲート駆動部の動作を開始するための垂直開始信号をさらに受信し、
前記補償制御信号の前記ハイ区間は、前記垂直開始信号の上昇時点に同期して開始されることを特徴とする請求項10に記載の表示装置。 - 上記したフレーム区間は、前記第1乃至第nゲートラインがスキャンされるスキャン区間及び前記スキャン区間と次のフレームのスキャン区間との間に位置するブランク区間を含み、
前記ロー区間は、前記ブランク区間内に含まれることを特徴とする請求項11に記載の表示装置。 - 前記ゲートオン電圧及び前記ゲートオフ電圧の各々は、k個の変曲点を有し、非線形的に増加又は減少し、ここで、kは、1以上の整数であり、
上記したフレーム区間は、k+1個の線形区間に分割され、
各線形区間内で前記ゲートオン電圧及び前記ゲートオフ電圧の各々の電圧変化量は、一定なことを特徴とする請求項10に記載の表示装置。 - 上記したフレーム区間の間に前記ゲートオン電圧及び前記ゲートオフ電圧は、時間軸上で2x個の単位時間の区間を含み、ここで、xは、1以上の整数であり、
前記各線形区間は、少なくとも1つの単位時間の区間を含むことを特徴とする請求項10に記載の表示装置。 - 前記最大ゲートオン電圧と前記基準ゲートオン電圧間の電位区間は、2y個の単位電位区間を有し、ここで、yは、1以上の整数であり、
前記最大ゲートオン電圧と前記基準ゲートオン電圧との差値は、αであり、各単位電位区間との間には、α/2yの電位差が形成されることを特徴とする請求項10に記載の表示装置。 - 前記基準ゲートオフ電圧と前記最小ゲートオフ電圧との間の電位区間は、2y個の単位電位区間を有し、ここで、yは、1以上の整数であり、
前記基準ゲートオフ電圧と前記最小ゲートオフ電圧の差値は、βであり、各単位電位区間との間には、β/2yの電位差が形成されることを特徴とする請求項10に記載の表示装置。
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Application Number | Priority Date | Filing Date | Title |
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KR1020150007271A KR102431311B1 (ko) | 2015-01-15 | 2015-01-15 | 표시 장치 |
KR10-2015-0007271 | 2015-01-15 |
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CN106652934B (zh) * | 2016-11-24 | 2024-04-05 | 合肥鑫晟光电科技有限公司 | 源极驱动电路以及显示装置 |
CN106652940B (zh) * | 2016-12-20 | 2019-06-07 | 深圳市华星光电技术有限公司 | 一种栅极驱动电路和液晶面板 |
KR102318764B1 (ko) | 2017-04-26 | 2021-10-29 | 삼성디스플레이 주식회사 | 표시 장치 |
KR102362880B1 (ko) * | 2017-07-03 | 2022-02-15 | 삼성디스플레이 주식회사 | 표시 장치 및 이를 이용한 표시 패널의 구동 방법 |
CN109389924B (zh) * | 2017-08-07 | 2020-08-18 | 京东方科技集团股份有限公司 | 一种用于显示面板的驱动电路、其驱动方法及显示面板 |
CN109949758B (zh) * | 2017-12-21 | 2022-01-04 | 咸阳彩虹光电科技有限公司 | 基于栅极驱动电路的扫描信号补偿方法及装置 |
KR102527847B1 (ko) * | 2018-06-18 | 2023-05-03 | 삼성디스플레이 주식회사 | 표시 장치 |
KR102525226B1 (ko) * | 2018-07-25 | 2023-04-25 | 삼성디스플레이 주식회사 | 게이트 구동회로 및 이를 포함하는 표시장치 |
KR102684634B1 (ko) * | 2018-08-10 | 2024-07-15 | 삼성디스플레이 주식회사 | 표시 장치 |
KR102635405B1 (ko) * | 2019-02-26 | 2024-02-14 | 삼성디스플레이 주식회사 | 표시 장치 |
CN112053651A (zh) * | 2019-06-06 | 2020-12-08 | 京东方科技集团股份有限公司 | 显示面板的时序控制方法及电路、驱动装置和显示设备 |
CN113348499A (zh) * | 2019-06-27 | 2021-09-03 | 深圳市柔宇科技股份有限公司 | 显示装置及显示驱动方法 |
CN111681583A (zh) * | 2020-06-04 | 2020-09-18 | Tcl华星光电技术有限公司 | Goa驱动电路及显示装置 |
CN112951150B (zh) * | 2021-01-29 | 2022-06-28 | 深圳市明微电子股份有限公司 | Led显示屏节能方法、装置、设备及存储介质 |
CN117831438A (zh) * | 2022-09-28 | 2024-04-05 | 群创光电股份有限公司 | 驱动电子装置的方法 |
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US10109253B2 (en) | 2018-10-23 |
CN111210788A (zh) | 2020-05-29 |
US10395618B2 (en) | 2019-08-27 |
CN105810161A (zh) | 2016-07-27 |
KR20160088465A (ko) | 2016-07-26 |
KR102431311B1 (ko) | 2022-08-12 |
EP3046100A1 (en) | 2016-07-20 |
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