JP4177823B2 - 発光表示装置とその表示パネル,及び駆動方法 - Google Patents
発光表示装置とその表示パネル,及び駆動方法 Download PDFInfo
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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
- 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
-
- 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
- G09G3/22—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
- G09G3/3233—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 with pixel circuitry controlling the current through the light-emitting element
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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
- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0439—Pixel structures
- G09G2300/0465—Improved aperture ratio, e.g. by size reduction of the pixel circuit, e.g. for improving the pixel density or the maximum displayable luminance or brightness
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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
- 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
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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
- 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
- G09G2300/0819—Several active elements per pixel in active matrix panels used for counteracting undesired variations, e.g. feedback or autozeroing
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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
- 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
- G09G2300/0852—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor being a dynamic memory with more than one capacitor
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- 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
- G09G2300/0861—Several active elements per pixel in active matrix panels forming a memory circuit, e.g. a dynamic memory with one capacitor with additional control of the display period without amending the charge stored in a pixel memory, e.g. by means of additional select electrodes
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- G09G2310/00—Command of the display device
- G09G2310/02—Addressing, scanning or driving the display screen or processing steps related thereto
- G09G2310/0235—Field-sequential colour display
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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
- G09G3/22—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]
- G09G3/3275—Details of drivers for data electrodes
- G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Electroluminescent Light Sources (AREA)
- Control Of El Displays (AREA)
Description
次に,図5〜図7に基づいて,第2実施形態にかかるOLED表示装置の画素について説明する。
110,110a,110b,110c 画素
200 選択走査駆動部
300 発光走査駆動部
400 データ駆動部
Claims (20)
- データ信号を伝達する複数のデータ線,選択信号を伝達する複数の走査線,及び前記データ線と前記走査線に連結される複数の画素を含む表示パネルにおいて,
前記画素は,印加される電流に対応して互いに異なる色を発光する少なくとも2個の発光素子,及び前記選択信号が印加される間に前記データ信号を入力し,前記データ信号に対応する第1電流を出力する駆動部を含み,
前記駆動部は,前記複数の画素に形成された前記発光素子のうち,同一色を発光する少なくとも2個の第1及び第2発光素子に前記第1電流を出力する,
ことを特徴とする表示パネル。 - 前記駆動部に入力される前記データ信号は,同一色の画像を示す,ことを特徴とする請求項1に記載の表示パネル。
- 一つのフィールドは第1及び第2サブフィールドを含み,
前記画素の駆動部は,前記第1サブフィールドの第1区間の間に前記第1電流を前記第1発光素子に伝達し,前記第2サブフィールドの第2区間の間に前記第1電流を前記第2発光素子に伝達する,
ことを特徴とする請求項1に記載の表示パネル。 - 前記画素は,前記駆動部と前記第1及び前記第2発光素子との間に各々連結される第1及び第2スイッチング素子をさらに含む,ことを特徴とする請求項3に記載の表示パネル。
- 前記駆動部は,第1〜第3電極を備え,前記第1及び第2電極間に印加される電圧に対応する電流を前記第3電極に出力するトランジスタ,
前記トランジスタの前記第1及び第2電極間に電気的に連結される第1キャパシタ,及び
前記選択信号に応答して前記データ信号を前記第1キャパシタに伝達する第3スイッチング素子,を含む,
ことを特徴とする請求項1に記載の表示パネル。 - 前記トランジスタの前記第2電極は,第1電源に連結されると共に,
前記駆動部は,前記トランジスタの前記第1電極と前記第1キャパシタとの間に連結される第2キャパシタ,第1制御信号に応答して前記トランジスタをダイオード連結させる第4スイッチング素子,第2制御信号に応答して,前記第2キャパシタの電極のうち,前記第1キャパシタ側電極に前記第1電源の電圧を印加する第5スイッチング素子,をさらに含む,
ことを特徴とする請求項5に記載の表示パネル。 - 前記第1制御信号と前記第2制御信号は,同一制御信号である,ことを特徴とする請求項6に記載の表示パネル。
- 前記第1制御信号は,前記選択信号が印加される前に印加された直前走査線の選択信号である,ことを特徴とする請求項7に記載の表示パネル。
- 前記複数のデータ線は,第1〜第3色に対応する前記データ信号を伝達する第1〜第3データ線グループを含み,
前記第1〜第3データ線グループに各々連結される前記画素の前記トランジスタは,互いに特性が異なるように形成される,
ことを特徴とする請求項6に記載の表示パネル。 - 前記第1〜第3データ線グループに各々連結される前記画素の前記トランジスタのチャンネルの幅と長さの比を制御することにより,前記第1〜第3色のホワイトバランスを調節する,ことを特徴とする請求項9に記載の表示パネル。
- 前記複数の画素は隣接する第1〜第3画素を含むと共に,
前記第1画素は,第1色及び第2色を発光する2個の発光素子を含み,前記第2画素は,第3色及び前記第1色を発光する2個の発光素子を含み,前記第3画素は,前記第2色及び前記第3色を発光する2個の発光素子を含み,
前記第1画素の駆動部は,前記第1色を発光する2個の発光素子に前記第1電流を出力し,前記第2画素の駆動部は,前記第2色を発光する2個の発光素子に前記第1電流を出力し,前記第3画素の駆動部は,前記第3色を発光する2個の発光素子に前記第1電流を出力する,
ことを特徴とする請求項1に記載の表示パネル。 - 前記第1〜第3画素が反復して形成される,ことを特徴とする請求項11に記載の表示パネル。
- 第1データ信号を入力して,前記第1データ信号に対応する第1電流を出力する第1駆動部と,第1色及び第2色を各々発光する第1及び第2発光素子とが形成された第1画素領域;
第2データ信号を入力して,前記第2データ信号に対応する第2電流を出力する第2駆動部と,第3色及び前記第1色を各々発光する第3及び第4発光素子とが形成された第2画素領域;及び
第3データ信号を入力して,前記第3データ信号に対応する第3電流を出力する第3駆動部と,前記第2色及び前記第3色を各々発光する第5及び第6発光素子とが形成された第3画素領域;を含み,
前記第1駆動部は,前記第1電流を前記第1及び第4発光素子に順に印加し,前記第2駆動部は,前記第2電流を前記第5及び第2発光素子に順に印加し,前記第3駆動部は,前記第3電流を前記第3及び第6発光素子に順に印加する,
ことを特徴とする表示パネル。 - 前記第1〜第3データ信号は,各々前記第1〜第3色に対応するデータ電圧である,ことを特徴とする請求項13に記載の表示パネル。
- データ信号を伝達する複数のデータ線,選択信号を伝達する複数の走査線,及び前記データ線と前記走査線に連結される複数の画素を含む表示部;一つのフィールドの間,同一色に対応する少なくとも2個のデータ信号を時分割して前記データ線に印加するデータ駆動部;及び前記一つのフィールドに含まれた第1及び第2サブフィールドで,前記複数の走査線に順に選択信号を印加するための走査駆動部;を含むと共に,
前記画素は,印加される電流に対応して互いに異なる色を発光する少なくとも2個の発光素子と,前記選択信号が印加される間に前記データ信号を入力し,前記発光素子を駆動するための駆動部とを含み,
前記駆動部は,前記複数の画素に含まれた前記発光素子のうち,同一色を発光する少なくとも2個の発光素子を順に駆動する発光表示装置。 - 前記駆動部は,
第1〜第3電極を備え,前記第1及び第2電極の間に印加される電圧に対応する電流を前記第3電極に出力するトランジスタ,
前記トランジスタの前記第1及び第2電極の間に電気的に連結される第1キャパシタ,及び
前記選択信号に応答して前記データ信号を前記第1キャパシタに伝達する第1スイッチング素子,を含む,
ことを特徴とする請求項15に記載の発光表示装置。 - 前記トランジスタの前記第2電極は,第1電源に連結されると共に,
前記駆動部は,前記トランジスタの前記第1電極と前記第1キャパシタとの間に連結される第2キャパシタ,第1制御信号に応答して前記トランジスタをダイオード連結させる第2スイッチング素子,第2制御信号に応答して,前記第2キャパシタの電極のうちの前記第1キャパシタ側電極に前記第1電源の電圧を印加する第3スイッチング素子をさらに含む,
ことを特徴とする請求項16に記載の発光表示装置。 - 前記複数の画素は,
第1色を発光する少なくとも2個の前記発光素子を駆動するための駆動部を含む第1画素グループ,第2色を発光する少なくとも2個の前記発光素子を駆動するための駆動部を含む第2画素グループ,及び第3色を発光する少なくとも2個の前記発光素子を駆動するための駆動部を含む第3画素グループ,を含む,
ことを特徴とする請求項16に記載の発光表示装置。 - 前記第1〜第3画素グループに含まれた前記トランジスタのチャンネルの幅と長さの比を制御することによって,前記第1〜第3色のホワイトバランスを調節する,ことを特徴とする請求項18に記載の発光表示装置。
- データ信号を伝達する複数のデータ線,選択信号を伝達する複数の走査線,及び前記データ線と前記走査線に各々連結される複数の画素を含む表示パネルの駆動方法において,
前記複数の画素は,互いに異なる色を発光する少なくとも2個の発光素子を含み,一つのフィールドは第1及び第2サブフィールドを含む複数のサブフィールドに分けて駆動され,
前記駆動方法は,
前記第1サブフィールドで,前記複数の走査線に前記選択信号を順に印加する第1段階;
前記第1段階の間,前記複数のデータ線に前記データ信号を記入する第2段階;
前記データ信号に対応する電流を,前記複数の画素に含まれた発光素子のうちの第1発光素子に伝達する第3段階;
第2サブフィールドで,前記複数の走査線に前記選択信号を順に印加する第4段階;
前記第4段階の間,前記複数のデータ線に前記データ信号を印加する第5段階;及び
前記データ信号に対応する電流を,前記複数の画素に含まれた発光素子のうちの前記第1発光素子と同一色を発光する第2発光素子に伝達する第6段階;
を含む,
ことを特徴とする表示パネルの駆動方法。
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KR1020040050610A KR100649253B1 (ko) | 2004-06-30 | 2004-06-30 | 발광 표시 장치와, 그 표시 패널 및 구동 방법 |
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JP2006018223A JP2006018223A (ja) | 2006-01-19 |
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US (1) | US8547300B2 (ja) |
JP (1) | JP4177823B2 (ja) |
KR (1) | KR100649253B1 (ja) |
CN (1) | CN100583207C (ja) |
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Cited By (1)
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CN110503917A (zh) * | 2018-05-16 | 2019-11-26 | 鸿富锦精密工业(深圳)有限公司 | 像素驱动电路及具有像素驱动电路的显示装置 |
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