JP7473568B2 - 表示基板及び表示装置 - Google Patents
表示基板及び表示装置 Download PDFInfo
- Publication number
- JP7473568B2 JP7473568B2 JP2021571721A JP2021571721A JP7473568B2 JP 7473568 B2 JP7473568 B2 JP 7473568B2 JP 2021571721 A JP2021571721 A JP 2021571721A JP 2021571721 A JP2021571721 A JP 2021571721A JP 7473568 B2 JP7473568 B2 JP 7473568B2
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- Prior art keywords
- pixel driving
- transistor
- line
- pole
- driving circuit
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Images
Classifications
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- 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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- G09G3/3208—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]
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
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- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/121—Active-matrix OLED [AMOLED] displays characterised by the geometry or disposition of pixel elements
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- G—PHYSICS
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- G09G2300/00—Aspects of the constitution of display devices
- G09G2300/04—Structural and physical details of display devices
- G09G2300/0421—Structural details of the set of electrodes
- G09G2300/043—Compensation electrodes or other additional electrodes in matrix displays related to distortions or compensation signals, e.g. for modifying TFT threshold voltage in column driver
-
- 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
-
- 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
-
- 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
- G09G2310/0262—The addressing of the pixel, in a display other than an active matrix LCD, involving the control of two or more scan electrodes or two or more data electrodes, e.g. pixel voltage dependent on signals of two 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
- G09G2330/00—Aspects of power supply; Aspects of display protection and defect management
- G09G2330/02—Details of power systems and of start or stop of display operation
- G09G2330/021—Power management, e.g. power saving
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
- H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
- H10K59/10—OLED displays
- H10K59/12—Active-matrix OLED [AMOLED] displays
- H10K59/131—Interconnections, e.g. wiring lines or terminals
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- Engineering & Computer Science (AREA)
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- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Geometry (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
- Control Of El Displays (AREA)
Description
DR1:第1方向
DR2:第2方向
1:画素駆動回路
VDD:電源線
Sense:補償検出線
Vdata:データ線
GL:ゲート線
P1:電源入力端
P2:補償検出信号端
P3:データ信号入力端
T1:駆動トランジスタ
T2:スイッチングトランジスタ
T3:検出トランジスタ
C1:蓄積容量
C2:発光素子の等価容量
D1:発光素子
BR1:電源ブリッジ線
BR2:補償検出ブリッジ線
BR3:第1の導電ブリッジ線
BR4:第2の導電ブリッジ線
VDDBUS:電源バス線
V1:第1ビア
V2:第2ビア
V3:第3ビア
V4:第4ビア
V5:第5ビア
V6:第6ビア
V7:第7ビア
V8:第8ビア
V9:第9ビア
V10:第10ビア
T1g:駆動トランジスタのゲート
Cb1:蓄積容量の第1の極の第1部分
Cb2:蓄積容量の第1の極の第2部分
Ca:蓄積容量の第2の極
T2g:スイッチングトランジスタのゲート
T2a:スイッチングトランジスタのゲート絶縁層
T2b:スイッチングトランジスタの活性層
Claims (13)
- ベースと、前記ベース上に設けられた表示機能層と、を含む表示基板であって、
前記表示機能層は、互いに交差する第1方向及び第2方向に配列された複数の画素駆動回路と、前記第2方向に延びる複数本の電源線と、前記第2方向に延びる複数本の補償検出線と、前記第1方向に延びる複数本のゲート線と、前記第2方向に延びる複数本のデータ線と、前記第1方向に延びる複数本の補償走査線と、を含み、
前記電源線と前記補償検出線は交互に間隔をおいて設けられており、任意の隣接する1本の前記電源線と1本の前記補償検出線との間には前記第2方向に延びる2列の画素駆動回路が設けられており、
前記複数の画素駆動回路のうちのいずれかの画素駆動回路において、当該画素駆動回路の電源入力端は、当該画素駆動回路に最も近い1本の前記電源線と電気的に接続されており、当該画素駆動回路の補償検出信号端は、当該画素駆動回路に最も近い1本の前記補償検出線と電気的に接続されており、
任意の隣接する2本の前記補償検出線は、前記第1方向に延びる第2の導電ブリッジ線を介して電気的に接続されている、
表示基板。 - 隣接する1本の前記電源線と1本の前記補償検出線との間に位置する2列の前記画素駆動回路において、
前記電源線に近い列の前記画素駆動回路のうちのいずれかの前記画素駆動回路において、当該画素駆動回路の電源入力端は、当該画素駆動回路に最も近い1本の前記電源線に直接接続されており、当該画素駆動回路の補償検出信号端は、補償検出ブリッジ線を介して当該画素駆動回路に最も近い1本の前記補償検出線に接続されており、
前記補償検出線に近い列の前記画素駆動回路のうちのいずれかの前記画素駆動回路において、当該画素駆動回路の電源入力端は、電源ブリッジ線を介して当該画素駆動回路に最も近い1本の前記電源線に接続されており、当該画素駆動回路の補償検出信号端は、当該画素駆動回路に最も近い1本の前記補償検出線に直接接続されている
請求項1に記載の表示基板。 - 隣接する1本の前記電源線と1本の前記補償検出線との間に位置する2列の前記画素駆動回路に対して、当該2列の前記画素駆動回路の間には2本の前記データ線が設けられており、
当該2列の前記画素駆動回路のうちのいずれかの前記画素駆動回路において、当該画素駆動回路のデータ信号入力端は、当該画素駆動回路に最も近い1本の前記データ線に接続されている
請求項2に記載の表示基板。 - 前記ベースと前記表示機能層との間に位置し、前記電源ブリッジ線、前記補償検出ブリッジ線と同じ層に設けられた遮光パターンをさらに含み、
前記電源ブリッジ線は、対応する前記電源線及び対応する前記電源入力端にビアを介して接続されており、
前記補償検出ブリッジ線は、対応する補償検出線及び対応する補償検出信号端にビアを介して接続されている
請求項2に記載の表示基板。 - 任意の隣接する2本の前記電源線は、前記第1方向に延びる第1の導電ブリッジ線を介して電気的に接続されている
請求項1に記載の表示基板。 - 複数の発光素子をさらに含み、
前記発光素子は、前記画素駆動回路と一対一で接続されており、前記ベースから離れる方向に順次に積層された第1の電極、発光層、第2の電極を含み、
前記第1の導電ブリッジ線は、前記第1の電極と同じ層に設けられている
請求項5に記載の表示基板。 - 複数の発光素子をさらに含み、
前記発光素子は、前記画素駆動回路と一対一で接続されており、前記ベースから離れる方向に順次に積層された第1の電極、発光層、第2の電極を含み、
前記第2の導電ブリッジ線は、前記第1の電極と同じ層に設けられている
請求項1に記載の表示基板。 - 前記電源線の少なくとも一部の端部は、同一の電源バス線に接続されている
請求項1に記載の表示基板。 - 前記電源バス線は、前記ゲート線と同じ層に設けられている
請求項8に記載の表示基板。 - 前記画素駆動回路は、駆動トランジスタと、スイッチングトランジスタと、検出トランジスタと、蓄積容量とを含み、前記スイッチングトランジスタのゲートは、対応するゲート線に接続され、前記スイッチングトランジスタの第1の極は、対応するデータ信号入力端に接続され、前記スイッチングトランジスタの第2の極は、前記駆動トランジスタのゲートと前記蓄積容量の第1の極とに接続され、前記駆動トランジスタの第1の極は、対応する電源入力端に接続され、前記駆動トランジスタの第2の極は、前記蓄積容量の第2の極と前記検出トランジスタの第1の極とに接続され、前記検出トランジスタのゲートは、対応する補償走査線に接続され、前記検出トランジスタの第2の極は、対応する補償検出信号端に接続されている
請求項1に記載の表示基板。 - 前記駆動トランジスタ、前記スイッチングトランジスタ、前記検出トランジスタはいずれもトップゲート型のトランジスタであり、
前記蓄積容量の第1の極は、前記駆動トランジスタ、前記スイッチングトランジスタ、前記検出トランジスタの活性層と同じ層に設けられており、
前記蓄積容量の第2の極は、遮光パターンである第1部分と、前記駆動トランジスタの第1の極と同じ層に設けられ、前記駆動トランジスタの第2の極と電気的に接続された第2部分とを含み、前記第1部分は前記第2部分と電気的に接続されている
請求項10に記載の表示基板。 - 複数の発光素子をさらに含み、
前記発光素子は、前記画素駆動回路と一対一で接続されており、前記ベースから離れる方向に順次に積層された第1の電極、発光層、第2の電極を含み、
前記蓄積容量の第2の極は、前記発光素子の第1の電極と同じ層に設けられ、前記第1部分と電気的に接続された第3部分をさらに含む
請求項11に記載の表示基板。 - 請求項1~12のいずれか1項に記載の表示基板を含む、表示装置。
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