JP6721328B2 - 表示装置 - Google Patents
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- JP6721328B2 JP6721328B2 JP2015248554A JP2015248554A JP6721328B2 JP 6721328 B2 JP6721328 B2 JP 6721328B2 JP 2015248554 A JP2015248554 A JP 2015248554A JP 2015248554 A JP2015248554 A JP 2015248554A JP 6721328 B2 JP6721328 B2 JP 6721328B2
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- 239000003990 capacitor Substances 0.000 claims description 24
- 238000000034 method Methods 0.000 description 20
- 238000010586 diagram Methods 0.000 description 19
- 239000000758 substrate Substances 0.000 description 15
- 239000011159 matrix material Substances 0.000 description 8
- 101150084890 cstA gene Proteins 0.000 description 6
- 239000003566 sealing material Substances 0.000 description 4
- 101150022676 CSTB gene Proteins 0.000 description 3
- 101150082606 VSIG1 gene Proteins 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 101000911019 Homo sapiens Zinc finger protein castor homolog 1 Proteins 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005401 electroluminescence Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
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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]
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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
- 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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- 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]
- G09G3/3266—Details of drivers for scan electrodes
-
- G—PHYSICS
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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]
- G09G3/3275—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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- 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
- G09G2300/0421—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
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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
- 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
- G09G2300/0814—Several active elements per pixel in active matrix panels used for selection purposes, e.g. logical AND for partial update
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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
- 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
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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
- G09G2300/0861—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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- 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
- G09G2310/0245—Clearing or presetting the whole screen independently of waveforms, e.g. on power-on
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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
- G09G2310/0251—Precharge or discharge of pixel before applying new pixel voltage
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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
- G09G2310/08—Details of timing specific for flat panels, other than clock recovery
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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
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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 El Displays (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Description
図面を用いて本実施形態に係る表示装置100の構成、及びその駆動方法について説明する。
図1は、本実施形態に係る表示装置100の概略構成を説明する斜視図である。本実施形態に係る表示装置100は、第1基板102と、第2基板104と、複数の画素108と、シール材110と、端子領域114と、接続端子116とを有している。
図2は、本実施形態に係る表示装置100の回路構成を説明する回路図である。
図面を用いて、本実施形態に係る表示装置100の駆動方法について説明する。
図面を用いて本実施形態に係る表示装置200の構成、及びその駆動方法について説明する。尚、表示装置200の概略構成については、第1実施形態に係る表示装置100と同様であるため、詳細な説明は省略する。
図8は、本実施形態に係る表示装置200の回路構成を説明する回路図である。
図面を用いて、本実施形態に係る表示装置200の駆動方法について説明する。
124:発光素子 Cst、CstA、CstB:保持容量 TR1、TR2、TR2A、TR2B、TR3、TR3A、TR3B、TR4、TR4A、TR4B、TR5:トランジスタ IG、SG:走査信号線 RG:初期化制御信号線 EG:発光制御信号線 Vsig:映像信号線 PVDD:電源電位線 PVSS:共通電位線
VDD:電源電位 VSS:共通電位
Claims (10)
- 複数の走査信号線と、
複数の初期化制御信号線と、
複数の発光制御信号線と、
前記複数の走査信号線、前記複数の初期化制御信号線及び前記複数の発光制御信号線に交差して配置された複数の映像信号線と、
各々が前記複数の走査信号線のいずれか及び前記複数の映像信号線のいずれかに接続された複数の画素回路を備え、
前記複数の画素回路の各々は、
制御端子が前記走査信号線に接続され、第1端子が前記映像信号線に接続された第1トランジスタ、
制御端子が第1ノードに接続され、第1端子が前記第1トランジスタの第2端子に接続された第2トランジスタ、
第1端子が前記第1ノードに接続され、第2端子が前記第2トランジスタの第2端子に接続され、制御端子が前記走査信号線に接続された第3トランジスタ、
第1端子が前記第2トランジスタの第2端子に接続され、制御端子が前記発光制御信号線に接続された第4トランジスタ、
第1端子が前記第2トランジスタの第1端子に接続され、第2端子が電源電位線に接続され、制御端子が前記発光制御信号線に接続された第5トランジスタ、
第1端子が前記第1ノードに接続され、第2端子が前記初期化制御信号線に接続された保持容量、及び、
前記第4トランジスタの第2端子に接続された発光素子を含み、
前記複数の画素回路の各々は、初期化期間において、
前記第3トランジスタの制御端子に前記第3トランジスタをオフする信号が供給されると、前記第3トランジスタがオフとなり、
その後、前記第3トランジスタの制御端子に前記第3トランジスタをオフする信号が供給された状態で、前記初期化制御信号線に第1の電位が供給されることにより、前記保持容量の第2端子の電位が前記第1の電位に変化すると、前記第3トランジスタの第1端子
の電位が経時的に変化して、前記第3トランジスタがオフからオンに変化することを特徴とする表示装置。 - 前記初期化期間の後の書き込み及び閾値補償期間において、
前記初期化制御信号線を前記第1の電位よりも低い第2の電位に変化させることで、前記保持容量の第2端子の電位を変化させ、
前記走査信号線に、前記第1トランジスタ及び前記第3トランジスタをオンにする信号を供給した状態で、前記映像信号線に階調データを供給することを特徴とする請求項1に記載の表示装置。 - 前記書き込み及び閾値補償期間後の発光期間において、
前記走査信号線に、前記第1トランジスタ及び前記第3トランジスタをオフにする信号を供給した状態で、前記第4トランジスタ及び前記第5トランジスタをオンにし、
前記発光素子に電流を流して発光させることを特徴とする請求項2に記載の表示装置。 - 前記第1乃至第5トランジスタは、同一極性のトランジスタであることを特徴とする請求項1に記載の表示装置。
- 複数の第1走査信号線と、
複数の第2走査信号線と、
複数の初期化制御信号線と、
複数の発光制御信号線と、
前記複数の第1走査信号線、前記複数の第2走査信号線、前記複数の初期化制御信号線及び前記複数の発光制御信号線に交差して配置された複数の映像信号線と、
各々が複数の画素回路を含み、前記複数の第1走査信号線のいずれか、前記複数の第2走査信号線いずれか、前記複数の初期化制御信号線いずれか、前記複数の発光制御信号線いずれか、及び前記複数の映像信号線のいずれかに接続された複数の画素回路群を備え、
前記複数の画素回路群の各々は、
制御端子が前記発光制御信号線に接続され、第1端子が電源電位線に接続された第1トランジスタ、
及び、制御端子が前記第1走査信号線に接続され、第1端子が前記映像信号線に接続された第5トランジスタを更に含み、
前記複数の画素回路群の各々に含まれる前記複数の画素回路の各々は、
制御端子が第1ノードに接続され、第1端子が前記第1トランジスタの第2端子及び前記第5トランジスタの第2端子に接続された第2トランジスタ、
第1端子が前記第1ノードに接続され、第2端子が前記第2トランジスタの第2端子に接続され、制御端子が前記第2走査信号線に接続された第3トランジスタ、
第1端子が前記第2トランジスタの第2端子に接続され、制御端子が前記発光制御信号線に接続された第4トランジスタ、
第1端子が前記第1ノードに接続され、第2端子が前記初期化制御信号線に接続された保持容量、及び、
前記第4トランジスタの第2端子に接続された発光素子を含み、
前記複数の画素回路群の各々は、初期化期間において、
前記画素回路群に含まれる前記複数の画素回路について、
前記第3トランジスタの制御端子に前記第3トランジスタをオフする信号が供給されると、前記第3トランジスタがオフとなり、
その後、前記第3トランジスタの制御端子に前記第3トランジスタをオフする信号が供給された状態で、前記初期化制御信号線に第1の電位が供給されることにより、前記保持容量の第2端子の電位が前記第1の電位に変化すると、前記第3トランジスタの第1端子の電位が経時的に変化して、前記第3トランジスタがオフからオンに変化することを特徴
とする表示装置。 - 前記初期化期間の後の書き込み及び閾値補償期間において、
前記画素回路群に含まれる前記複数の画素回路について、
前記初期化制御信号線を前記第1の電位よりも低い第2の電位に変化させることで、前記保持容量の第2端子の電位を変化させ、
前記第1走査信号線に、前記第5トランジスタをオンにする信号を供給した状態で、
前記複数の画素回路の前記第3トランジスタを順次オンすることによって、前記映像信号線に階調データを供給することを特徴とする請求項5に記載の表示装置。 - 前記書き込み及び閾値補償期間後の発光期間において、
前記画素回路群に含まれる前記複数の画素回路について、
前記第1走査信号線に、前記第3トランジスタ及び前記第5トランジスタをオフにする信号を供給した状態で、前記第1トランジスタ及び前記第4トランジスタをオンにし、
前記発光素子に電流を流して発光させる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5トランジスタは、同一極性のトランジスタであることを特徴とする請求項5に記載の表示装置。
- 前記第1乃至第5トランジスタは、Pチャネルトランジスタであ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5トランジスタは、Pチャネルトランジスタであることを特徴とする請求項8に記載の表示装置。
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