JP2005062859A5 - - Google Patents

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JP2005062859A5
JP2005062859A5 JP2004224861A JP2004224861A JP2005062859A5 JP 2005062859 A5 JP2005062859 A5 JP 2005062859A5 JP 2004224861 A JP2004224861 A JP 2004224861A JP 2004224861 A JP2004224861 A JP 2004224861A JP 2005062859 A5 JP2005062859 A5 JP 2005062859A5
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current
light emitting
emitting element
correction
source
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JP2004224861A
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JP2005062859A (en
JP4889926B2 (en
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発光素子の劣化に基づく補正電流を供給する電流源を有する供給源と、
前記供給源を制御する制御手段と、
前記供給源から前記発光素子へ前記補正電流を供給する電流源と、
を有することを特徴とする表示装置。 A supply source having a current source for supplying a correction current based on degradation of the light emitting element;
Control means for controlling the supply source;
A current source for supplying the correction current from the supply source to the light emitting element;
A display device comprising: 信号線と、走査線との交差部に設けられた発光素子と
前記発光素子の劣化に基づく補正電流を供給する電流源を有する供給源と、
前記供給源を制御する制御手段と、
前記供給源から前記発光素子へ前記補正電流を供給する電流源と、を有し、
前記信号線と前記走査線とに接続される第１のスイッチと、
前記電流源と前記発光素子との間に設けられた第２のスイッチと、
を有することを特徴とする表示装置。 A light emitting element provided at the intersection of the signal line and the scanning line;
A supply source having a current source for supplying a correction current based on the deterioration of the light emitting element,
Control means for controlling the supply source;
A current source for supplying the correction current from the supply source to the light emitting element,
A first switch connected to the signal line and the scanning line;
A second switch provided between the current source and the light emitting element;
A display device comprising: 発光素子の点灯時間を数える手段と、前記点灯時間と前記発光素子の劣化に基づき補正信号を設定する手段と、を備える計数手段と、
前記補正信号に基づき補正電流を供給する電流源を有する供給源と、
前記供給源へ入力される前記補正信号を制御する制御手段と、
前記供給源から前記発光素子へ前記補正電流を供給する電流源と、
を有することを特徴とする表示装置。 Counting means comprising: means for counting the lighting time of the light emitting element; and means for setting a correction signal based on the lighting time and deterioration of the light emitting element;
A supply source having a current source for supplying a correction current based on the correction signal;
Control means for controlling the correction signal input to the supply source;
A current source for supplying the correction current from the supply source to the light emitting element;
A display device comprising: 信号線と、走査線との交差部に設けられた発光素子と、
前記発光素子の点灯時間を数える手段と、前記点灯時間と前記発光素子の劣化に基づき補正信号を設定する手段と、を備える計数手段と、
前記補正信号に基づき補正電流を供給する電流源を有する供給源と、
前記供給源へ入力される前記補正信号を制御する制御手段と、
前記供給源から前記発光素子へ前記補正電流を供給する電流源と、を有し、
前記信号線と前記走査線とに接続される第１のスイッチと、
前記電流源と前記発光素子との間に設けられた第２のスイッチと、
を有することを特徴とする表示装置。 A light emitting element provided at an intersection of the signal line and the scanning line;
Counting means comprising: means for counting the lighting time of the light emitting element; and means for setting a correction signal based on the lighting time and deterioration of the light emitting element;
A supply source having a current source for supplying a correction current based on the correction signal;
Control means for controlling the correction signal input to the supply source;
A current source for supplying the correction current from the supply source to the light emitting element,
A first switch connected to the signal line and the scanning line;
A second switch provided between the current source and the light emitting element;
A display device comprising: 発光素子の劣化情報を記憶する記憶手段と、
前記発光素子の点灯時間を数える手段と、前記点灯時間と前記劣化情報に基づき補正信号を設定する手段と、を備える計数手段と、
前記補正信号に基づき補正電流を供給する電流源を有する供給源と、
前記供給源へ入力される前記補正信号を制御する制御手段と、
前記供給源から前記発光素子へ前記補正電流を供給する電流源と、
を有することを特徴とする表示装置。 Storage means for storing deterioration information of the light emitting element;
Counting means comprising: means for counting the lighting time of the light emitting element; and means for setting a correction signal based on the lighting time and the deterioration information;
A supply source having a current source for supplying a correction current based on the correction signal;
Control means for controlling the correction signal input to the supply source;
A current source for supplying the correction current from the supply source to the light emitting element;
A display device comprising: 信号線と、走査線との交差部に設けられた発光素子と、
前記発光素子の劣化情報を記憶する記憶手段と、
前記発光素子の点灯時間を数える手段と、前記点灯時間と前記劣化情報に基づき補正信号を設定する手段と、を備える計数手段と、
前記補正信号に基づき補正電流を供給する電流源を有する供給源と、
前記供給源へ入力される前記補正信号を制御する制御手段と、
前記供給源から前記発光素子へ前記補正電流を供給する電流源と、
前記信号線と前記走査線とに接続される第１のスイッチと、
前記電流源と前記発光素子との間に設けられた第２のスイッチと、
を有することを特徴とする表示装置。 A light emitting element provided at an intersection of the signal line and the scanning line;
Storage means for storing deterioration information of the light emitting element;
Counting means comprising: means for counting the lighting time of the light emitting element; and means for setting a correction signal based on the lighting time and the deterioration information;
A supply source having a current source for supplying a correction current based on the correction signal;
Control means for controlling the correction signal input to the supply source;
A current source for supplying the correction current from the supply source to the light emitting element;
A first switch connected to the signal line and the scanning line;
A second switch provided between the current source and the light emitting element;
A display device comprising: 請求項２、４、及び６のいずれか一において、前記電流源は前記信号線毎に設けられることを特徴とする表示装置。 In any one of claims 2, 4, and 6, the display device prior SL current source, characterized in that provided for each of the signal lines. 請求項２、４、及び６のいずれか一において、前記供給源は一対の第１の電流源及び第２の電流源を有し、前記一対の電流源は前記信号線毎に設けられることを特徴とする表示装置。 7. The supply source according to claim 2 , wherein the supply source has a pair of a first current source and a second current source, and the pair of current sources is provided for each of the signal lines. Characteristic display device. 請求項１乃至８のいずれか一において、前記補正電流を供給する電流源は、トランジスタ、及び前記トランジスタのゲート・ソース間電圧を保持する容量を有することを特徴とする表示装置。 In any one of claims 1 to 8, wherein the current source for supplying a correction current, transistors, and a display device characterized by having a capacitor for holding the gate-source voltage of the transistor. 請求項１乃至９のいずれか一において、前記電流源と前記供給源は電流線を介して接続されることを特徴とする表示装置。 In any one of claims 1 to 9, wherein the supply source and the current source display device characterized in that it is connected via the current line. 請求項１乃至１０のいずれか一において、前記制御手段はシフトレジスタ又はデコーダを有することを特徴とする表示装置。 In any one of claims 1 to 10, wherein the control means is a display device characterized by having a shift register or a decoder. 請求項１乃至１１のいずれか一において、前記制御手段は前記シフトレジスタ又は前記デコーダと、第１のラッチ回路と、第２のラッチ回路とを有することを特徴とする表示装置。 In any one of claims 1 to 11, wherein the control means with the shift register or the decoder, a first latch circuit, a display device characterized by a second latch circuit. 請求項１乃至１２のいずれか一において、前記制御手段が有する電流源と、前記供給源が有する電流源とを共有することを特徴とする表示装置。 In any one of claims 1 to 12, a current source with said control means, a display device, characterized in that share a current source the source has. 請求項２、４、６乃至１２のいずれか一において、前記制御手段が有するシフトレジスタ、及びラッチ回路と、前記信号線を駆動する信号線駆動回路が有するシフトレジスタ、及びラッチ回路と、を共有することを特徴とする表示装置。 Shared any one of claims 2, 4, 6 to 12, the shift register having the said control means, and a latch circuit, a shift register signal line driver circuit has to drive the signal lines, and a latch circuit, a A display device characterized by: 信号線と、走査線との交差部にそれぞれ発光素子が設けられた画素部と、
前記発光素子の劣化に基づく補正電流を供給し、前記信号線毎に設けられた第１の電流源及び第２の電流源を有する供給源と、
前記供給源から前記発光素子へ前記補正電流を供給する電流源と、
を有する表示装置の駆動方法は、
前記第１の電流源により、同一の前記信号線に接続された前記発光素子のうち最も劣化が小さい発光素子の劣化に応じた補正電流が供給され、
前記第２の電流源により、同一の前記信号線に接続された前記発光素子のうち最も劣化が大きい発光素子の劣化に応じた補正電流が供給されることを特徴とする表示装置の駆動方法。 A pixel portion provided with a light emitting element at each intersection of the signal line and the scanning line;
Supplying a correction current based on the deterioration of the light emitting element, a supply source having a first current source and a second current source provided for each signal line;
A current source for supplying the correction current from the supply source to the light emitting element;
A driving method of a display device having
The first current source supplies a correction current according to the deterioration of the light emitting element having the smallest deterioration among the light emitting elements connected to the same signal line,
A display device driving method, wherein a correction current corresponding to deterioration of a light emitting element having the greatest deterioration among the light emitting elements connected to the same signal line is supplied by the second current source. 信号線と、走査線との交差部にそれぞれ発光素子が設けられた画素部と、
前記発光素子の劣化に基づく補正電流を供給し、前記信号線毎に設けられた複数の電流源を有する供給源と、
前記供給源から前記発光素子へ前記補正電流を供給する電流源と、
を有する表示装置の駆動方法は、
同一の前記信号線に接続された前記発光素子のうち最も劣化が小さい発光素子に応じた第１の電流値と、最も劣化が大きい発光素子に応じた第２の電流値と、の間の電流値を分割して複数の電流値を決定し、前記複数の電流源により前記第１及び第２の電流値を含む複数の電流値を供給することを特徴とする表示装置の駆動方法。 A pixel portion provided with a light emitting element at each intersection of the signal line and the scanning line;
A supply source that supplies a correction current based on the deterioration of the light emitting element and has a plurality of current sources provided for each of the signal lines;
A current source for supplying the correction current from the supply source to the light emitting element;
A driving method of a display device having
A current between a first current value corresponding to a light emitting element having the least deterioration and a second current value corresponding to a light emitting element having the greatest deterioration among the light emitting elements connected to the same signal line. A display device driving method, comprising: dividing a value to determine a plurality of current values; and supplying a plurality of current values including the first and second current values from the plurality of current sources. 請求項１６において、前記電流値を分割して決定される複数の電流値の数と、前記電流源との数は同一であることを特徴とする表示装置の駆動方法。 17. The display device driving method according to claim 16 , wherein the number of the plurality of current values determined by dividing the current value is the same as the number of the current sources. 請求項１５乃至１７のいずれか一において、前記信号線へ入力されるビデオ信号を用いて前記発光素子の劣化を補正することを特徴とする表示装置の駆動方法。

In any one of claims 15 to 17, the driving method of a display device and correcting the deterioration of the light emitting device by using a video signal input to the signal line.

JP2004224861A 2003-07-31 2004-07-30 Display device and driving method thereof Expired - Fee Related JP4889926B2 (en)

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