JP2002311898A5 - - Google Patents

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JP2002311898A5
JP2002311898A5 JP2002028984A JP2002028984A JP2002311898A5 JP 2002311898 A5 JP2002311898 A5 JP 2002311898A5 JP 2002028984 A JP2002028984 A JP 2002028984A JP 2002028984 A JP2002028984 A JP 2002028984A JP 2002311898 A5 JP2002311898 A5 JP 2002311898A5
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発光素子と、
前記発光素子の第1の電極と第2の電極の間に流れる電流を測定する手段と、
ビデオ信号を用いて、前記発光素子の第1の電極と第2の電極の間に流れる電流の基準となる電流値を算出する手段と、
前記測定により得られる電流値が、前記基準となる電流値に近づくように、前記発光素子が有する第1の電極と第2の電極の間の電圧を補正する手段とを有することを特徴とする発光装置。
A light emitting element ;
Means for measuring a current flowing between the first electrode and the second electrode of the light emitting element;
Means for calculating a current value serving as a reference of a current flowing between the first electrode and the second electrode of the light emitting element using a video signal;
And means for correcting a voltage between the first electrode and the second electrode of the light emitting element so that a current value obtained by the measurement approaches the reference current value. Light emitting device.
発光素子と、
前記発光素子の第1の電極と第2の電極の間に流れる電流を測定する手段と、
ビデオ信号を用いて、前記発光素子の第1の電極と第2の電極の間に流れる電流の、基準となる値を算出する手段と、
前記測定した電流値と、前記基準となる電流値の偏差を算出する手段と、
前記偏差から、前記発光素子が有する第1の電極と第2の電極の間に流れる電流が前記基準となる電流値に近づくような、前記発光素子が有する第1の電極と第2の電極の間の電圧値を算出する手段と、
前記発光素子が有する第1の電極と第2の電極の間の電圧を、前記算出された電圧値に近づくように補正する手段とを有することを特徴とする発光装置。
A light emitting element ;
Means for measuring a current flowing between the first electrode and the second electrode of the light emitting element;
Means for calculating a reference value of the current flowing between the first electrode and the second electrode of the light emitting element using a video signal;
Means for calculating a deviation between the measured current value and the reference current value;
From the deviation, the first electrode and the second electrode of the light-emitting element such that the current flowing between the first electrode and the second electrode of the light-emitting element approaches the reference current value. Means for calculating a voltage value between,
A light emitting device comprising: means for correcting a voltage between the first electrode and the second electrode of the light emitting element so as to approach the calculated voltage value.
発光素子と、
前記発光素子の第1の電極と第2の電極の間に流れる電流を測定する手段と、
ビデオ信号を用いて、前記発光素子の第1の電極と第2の電極の間に流れる電流の、基準となる値を算出する手段と、
前記測定により得られる電流値が、前記基準となる電流値に近づくように、前記発光素子が有する第1の電極と第2の電極の間の電圧を補正する手段とを有し、
前記測定により得られる電流値と前記基準となる電流値の偏差が一定の幅で変化するごとに、前記測定により得られる電流値が一定の幅で変化することを特徴とする発光装置。
A light emitting element ;
Means for measuring a current flowing between the first electrode and the second electrode of the light emitting element;
Means for calculating a reference value of the current flowing between the first electrode and the second electrode of the light emitting element using a video signal;
Means for correcting the voltage between the first electrode and the second electrode of the light-emitting element so that the current value obtained by the measurement approaches the reference current value;
The light emitting device, wherein the current value obtained by the measurement changes with a constant width every time the deviation between the current value obtained by the measurement and the reference current value changes with a constant width.
発光素子と、
前記発光素子の第1の電極と第2の電極の間に流れる電流を測定する手段と、
ビデオ信号を用いて、前記発光素子の第1の電極と第2の電極の間に流れる電流の、基準となる値を算出する手段と、
前記測定した電流値と、前記基準となる電流値の偏差を算出する手段と、
前記偏差から、前記発光素子が有する第1の電極と第2の電極の間に流れる電流が前記基準となる電流値に近づくような、前記発光素子が有する第1の電極と第2の電極の間の電圧値を算出する手段と、
前記発光素子が有する第1の電極と第2の電極の間の電圧を、前記算出された電圧値に近づくように補正する手段とを有し、
前記偏差が一定の幅で変化するごとに、前記算出された電圧値が一定の大きさで変化することを特徴とする発光装置。
A light emitting element ;
Means for measuring a current flowing between the first electrode and the second electrode of the light emitting element;
Means for calculating a reference value of the current flowing between the first electrode and the second electrode of the light emitting element using a video signal;
Means for calculating a deviation between the measured current value and the reference current value;
From the deviation, the first electrode and the second electrode of the light-emitting element such that the current flowing between the first electrode and the second electrode of the light-emitting element approaches the reference current value. Means for calculating a voltage value between,
Means for correcting the voltage between the first electrode and the second electrode of the light emitting element so as to approach the calculated voltage value;
Each time the deviation changes with a certain width, the calculated voltage value changes with a certain magnitude.
画素部、補正回路、可変電源及び電流計を有し、
前記画素部に発光素子を有する画素が複数設けられており、
前記電流計によって、全ての前記発光素子の第1の電極と第2の電極の間に流れる電流の合計が測定され、
前記補正回路は、
デジタルビデオ信号を用いて、発光する前記発光素子の数を算出し、前記発光する発光素子の数と、前記測定した合計の電流値から、前記発光する各発光素子の電流の測定値を算出する手段と、
前記発光する各発光素子の電流の測定値が、前記発光する各発光素子の第1の電極と第2の電極の間に流れる基準となる電流値に近づくように、全ての前記発光素子が有する第1の電極と第2の電極の間の電圧を前記可変電源によって補正する手段とを有することを特徴とする発光装置。
Pixel portion, have a correction circuit, a variable power supply and an ammeter,
A plurality of pixels having light emitting elements are provided in the pixel portion,
By the ammeter, the total current flowing between the first electrode and the second electrode of all the light emitting elements is measured,
The correction circuit includes:
The digital video signal is used to calculate the number of light emitting elements that emit light, and the measured value of the current of each light emitting element that emits light is calculated from the number of light emitting elements that emit light and the measured current value. Means,
All the light-emitting elements have a measured value of the current of each light-emitting element that emits light so as to approach a reference current value that flows between the first electrode and the second electrode of each light-emitting element that emits light. A light emitting device comprising: means for correcting a voltage between the first electrode and the second electrode by the variable power source.
画素部、補正回路、可変電源及び電流計を有し、
前記画素部に発光素子を有する画素が複数設けられており、
前記電流計によって、全ての前記発光素子の第1の電極と第2の電極の間に流れる電流の合計が測定され、
前記補正回路は、
デジタルビデオ信号を用いて、発光する前記発光素子の数を算出し、前記発光する発光素子の数と、前記測定した合計の電流値から、前記発光する各発光素子の電流の測定値を算出する手段と、
前記発光する各発光素子の電流の測定値と、前記発光する各発光素子の、第1の電極と第2の電極の間に流れる基準となる電流値の偏差を算出する手段と、
前記偏差から、前記発光する各発光素子の第1の電極と第2の電極の間に流れる電流が、前記基準となる電流値に近づくような、全ての前記発光素子が有する第1の電極と第2の電極の間の電圧値を算出する手段と、
全ての前記発光素子が有する第1の電極と第2の電極の間の電圧を、前記算出された電圧値に近づくように前記可変電源によって補正する手段とを有することを特徴とする発光装置。
Pixel portion, have a correction circuit, a variable power supply and an ammeter,
A plurality of pixels having light emitting elements are provided in the pixel portion,
By the ammeter, the total current flowing between the first electrode and the second electrode of all the light emitting elements is measured,
The correction circuit includes:
The digital video signal is used to calculate the number of light emitting elements that emit light, and the measured value of the current of each light emitting element that emits light is calculated from the number of light emitting elements that emit light and the measured current value. Means,
Means for calculating a deviation between a measured current value of each light emitting element that emits light and a reference current value flowing between the first electrode and the second electrode of each light emitting element that emits light;
From the deviation, the first electrodes of all the light-emitting elements such that the current flowing between the first electrode and the second electrode of each light-emitting element that emits light approaches the reference current value; Means for calculating a voltage value between the second electrodes;
A light emitting apparatus comprising: means for correcting the voltage between the first electrode and the second electrode of all the light emitting elements by the variable power supply so as to approach the calculated voltage value.
画素部、補正回路、可変電源及び電流計を有し、
前記画素部に発光素子を有する画素が複数設けられており、
前記電流計によって、全ての前記発光素子の第1の電極と第2の電極の間に流れる電流の合計が測定され、
前記補正回路は、
デジタルビデオ信号を用いて、発光する前記発光素子の数を算出し、前記発光する発光素子の数と、前記測定した合計の電流値から、前記発光する各発光素子の電流の測定値を算出する手段と、
前記発光する各発光素子の電流の測定値が、前記発光する各発光素子の第1の電極と第2の電極の間に流れる基準となる電流値に近づくように、全ての前記発光素子が有する第1の電極と第2の電極の間の電圧を前記可変電源によって補正する手段とを有し、
前記発光する各発光素子の電流の測定値と前記基準となるの電流値の偏差が一定の幅で変化するごとに、前記発光する各発光素子の電流の測定値が一定の幅で変化することを特徴とする発光装置。
Pixel portion, have a correction circuit, a variable power supply and an ammeter,
A plurality of pixels having light emitting elements are provided in the pixel portion,
By the ammeter, the total current flowing between the first electrode and the second electrode of all the light emitting elements is measured,
The correction circuit includes:
The digital video signal is used to calculate the number of light emitting elements that emit light, and the measured value of the current of each light emitting element that emits light is calculated from the number of light emitting elements that emit light and the measured current value. Means,
All the light-emitting elements have a measured value of the current of each light-emitting element that emits light so as to approach a reference current value that flows between the first electrode and the second electrode of each light-emitting element that emits light. Means for correcting the voltage between the first electrode and the second electrode by the variable power source,
Each time the deviation between the measured current value of each light emitting element emitting light and the reference current value changes with a constant width, the measured current value of each light emitting element emitting light changes with a constant width. A light emitting device characterized by the above.
画素部、補正回路、可変電源及び電流計を有し、
前記画素部に発光素子を有する画素が複数設けられており、
前記電流計によって、全ての前記発光素子の第1の電極と第2の電極の間に流れる電流の合計が測定され、
前記補正回路は、
デジタルビデオ信号を用いて、発光する前記発光素子の数を算出し、前記発光する発光素子の数と、前記測定した合計の電流値から、前記発光する各発光素子の電流の測定値を算出する手段と、
前記発光する各発光素子の電流の測定値と、前記発光する各発光素子の、第1の電極と第2の電極の間に流れる基準となる電流値の偏差を算出する手段と、
前記偏差から、前記発光する各発光素子の第1の電極と第2の電極の間に流れる電流が、前記基準となる電流値に近づくような、全ての前記発光素子が有する第1の電極と第2の電極の間の電圧値を算出する手段と、
全ての前記発光素子が有する第1の電極と第2の電極の間の電圧を、前記算出された電圧値に近づくように前記可変電源によって補正する手段とを有し、
前記偏差が一定の幅で変化するごとに、前記算出された電圧値が一定の大きさで変化することを特徴とする発光装置。
Pixel portion, have a correction circuit, a variable power supply and an ammeter,
A plurality of pixels having light emitting elements are provided in the pixel portion,
By the ammeter, the total current flowing between the first electrode and the second electrode of all the light emitting elements is measured,
The correction circuit includes:
The digital video signal is used to calculate the number of light emitting elements that emit light, and the measured value of the current of each light emitting element that emits light is calculated from the number of light emitting elements that emit light and the measured current value. Means,
Means for calculating a deviation between a measured current value of each light emitting element that emits light and a reference current value flowing between the first electrode and the second electrode of each light emitting element that emits light;
From the deviation, the first electrodes of all the light-emitting elements such that the current flowing between the first electrode and the second electrode of each light-emitting element that emits light approaches the reference current value; Means for calculating a voltage value between the second electrodes;
Means for correcting the voltage between the first electrode and the second electrode of all the light emitting elements by the variable power supply so as to approach the calculated voltage value;
Each time the deviation changes with a certain width, the calculated voltage value changes with a certain magnitude.
請求項5乃至請求項8のいずれか1項において、前記可変電源、前記電流計及び前記補正回路が、前記発光素子の対応する色ごとに設けられていることを特徴とする発光装置。  9. The light-emitting device according to claim 5, wherein the variable power source, the ammeter, and the correction circuit are provided for each color corresponding to the light-emitting element. 請求項5乃至請求項9のいずれか1項において、前記発光素子が形成されている第1の基板上に、前記補正回路または電流計が形成されている第2の基板が取り付けられていることを特徴とする発光装置。  The second substrate on which the correction circuit or the ammeter is formed is attached to the first substrate on which the light emitting element is formed. A light emitting device characterized by the above. 請求項5乃至請求項9のいずれか1項において、前記発光素子が形成されている第1の基板上に、前記補正回路または電流計が形成されている第2の基板がCOG法により取り付けられていることを特徴とする発光装置。  The second substrate on which the correction circuit or the ammeter is formed is attached to the first substrate on which the light emitting element is formed by a COG method according to any one of claims 5 to 9. A light emitting device characterized by comprising: 請求項5乃至請求項9のいずれか1項において、前記発光素子が形成されている第1の基板上に、前記補正回路または電流計が形成されている第2の基板がワイヤボンディング法により取り付けられていることを特徴とする発光装置。  The second substrate on which the correction circuit or the ammeter is formed is attached to the first substrate on which the light emitting element is formed by a wire bonding method according to any one of claims 5 to 9. A light emitting device characterized in that the light emitting device is provided. 請求項1乃至請求項12のいずれか1項において、前記発光装置を用いることを特徴とする電子機器。  The electronic device according to any one of claims 1 to 12, wherein the light-emitting device is used.
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