JP2003316318A5

JP2003316318A5 -

Info

Publication number: JP2003316318A5
Application number: JP2002119659A
Authority: JP
Filing date: 2002-04-22
Publication date: 2005-09-08
Anticipated expiration: 2022-04-22

Claims

A plurality of scanning lines; a plurality of data lines extending in a direction intersecting with the extending direction of the scanning lines; and pixels formed in a matrix by the data lines and the scanning lines. In an image display device,
The data lines comprise first and second data lines for supplying first and second data signals, respectively.
The pixel includes first and second active elements to which a scanning signal for selecting the pixel in a predetermined cycle is supplied via the scanning line;
First and second capacitive elements for holding the first and second data signals respectively supplied from the first and second data lines via the first and second active elements, respectively;
A third active element to which the first data signal held by the first capacitive element is supplied;
A light emitting element that is supplied with a current according to the first data signal via the third active element and enters a first lighting state;
Changing means for changing the lighting state of the light emitting element in one scanning cycle,
The changing means generates intermediate data based on the second data signal, supplies the intermediate data to the third active element, and changes the first lighting state of the light emitting element to the intermediate data. An image display device characterized by changing to a second lighting state with a corresponding current.

Control means for forcibly turning off the light emitting elements of each pixel connected to the same scanning line in at least one scanning line during the one scanning cycle; 2. The image display device according to claim 1, wherein the image display device is turned off.

The changing means combines the first data signal held by the first capacitive element and the second data signal held by the second capacitive element to generate the intermediate data. The image display apparatus according to claim 1, further comprising: means.

The combining means is a fourth active element that couples the first capacitive element and the second capacitive element,
4. The image display apparatus according to claim 3, wherein the changing means includes a coupling control line for supplying a control signal to the fourth active element.

A data line driving circuit for supplying the first data signal and the second data signal to the first data line and the second data line, respectively;
The data line driving circuit includes a signal processing circuit that generates the second data signal from the first data signal,
The signal processing circuit includes data cutout means for cutting out predetermined data from the first data signal,
Class classification means for generating a class code based on the cut-out data cut out by the data cut-out means;
Prediction coefficient storage means for storing a prediction coefficient of an estimation formula for converting the first data signal to the second data signal for each class code, and outputting a prediction coefficient corresponding to the class code;
Estimation calculation means for performing estimation calculation based on the prediction coefficient output from the prediction coefficient storage means and the cut-out data and outputting the intermediate data;
The image display device according to claim 1, further comprising: a data conversion unit that generates the second data signal from the first data signal and the intermediate data.

Learning means for learning in advance the prediction coefficient stored in the prediction coefficient storage means;
The learning means generates a frequency converted data signal obtained by converting a frame frequency of the first data signal as the second data signal;
Data cutout means for cutting out predetermined data from the frequency converted data signal, class classification means for generating a class code based on the cutout data cut out by the data cutout means,
A prediction coefficient computing unit that receives the first data signal and the cut data cut out from the frequency-converted data signal and calculates a prediction coefficient based on each data;
The image display apparatus according to claim 5, further comprising: a prediction coefficient storage unit that stores the prediction coefficient calculated by the prediction coefficient calculation unit together with the class code.

A plurality of scanning lines; a plurality of data lines extending in a direction intersecting with the extending direction of the scanning lines; and pixels formed in a matrix by the data lines and the scanning lines. In an image display device,
The data lines comprise first and second data lines for supplying first and second data signals, respectively.
The pixel includes first and second active elements to which a scanning signal for selecting the pixel in a predetermined cycle is supplied via the scanning line;
First and second capacitive elements for holding the first and second data signals respectively supplied from the first and second data lines via the first and second active elements, respectively;
A third active element to which the first data signal held by the first capacitive element is supplied;
A light emitting element that is supplied with a current according to the first data signal via the third active element and enters a first lighting state;
Changing means for changing the lighting state of the light emitting element in one scanning cycle,
The changing means supplies the second data signal to the third active element, and changes the first lighting state of the light emitting element to a second lighting state by a current corresponding to the second data signal. An image display device characterized by being changed to

A control means for forcibly turning off the light emitting elements of each pixel connected to the same scanning line in at least one scanning line during the one scanning cycle; The image display device according to claim 7, wherein the image display device is turned off.

The changing means includes a fifth active element connected to the first capacitor element and the second capacitor element, and a selection control line for supplying a control signal to the fifth active element, The selection signal selects either the first data signal held by the first capacitor element or the second data signal held by the second capacitor element. 8. The image display device according to 7.

A data line driving circuit for supplying the first data signal and the second data signal to the first data line and the second data line, respectively;
The data line driving circuit includes a signal processing circuit that generates the second data signal from the first data signal,
The signal processing circuit includes data cutout means for cutting out predetermined data from the first data signal,
Class classification means for generating a class code based on the cut-out data cut out by the data cut-out means;
Prediction coefficient storage means for storing a prediction coefficient of an estimation formula for converting the first data signal to the second data signal for each class code, and outputting a prediction coefficient corresponding to the class code;
8. An estimation calculation unit that estimates and calculates the second data signal based on the prediction coefficient output from the prediction coefficient storage unit and the cut-out data. Image display device.

Learning means for learning in advance the prediction coefficient stored in the prediction coefficient storage means;
The learning means generates a frequency converted data signal obtained by converting a frame frequency of the first data signal as the second data signal;
Data cutout means for cutting out predetermined data from the frequency converted data signal, class classification means for generating a class code based on the cutout data cut out by the data cutout means,
A prediction coefficient computing unit that receives the first data signal and the cut data cut out from the frequency-converted data signal and calculates a prediction coefficient based on each data;
The image display apparatus according to claim 10, further comprising: a prediction coefficient storage unit that stores the prediction coefficient calculated by the prediction coefficient calculation unit together with the class code.

A plurality of scanning lines; a plurality of data lines extending in a direction intersecting with the extending direction of the scanning lines; and pixels formed in a matrix by the data lines and the scanning lines. In the image display method of the image display device,
The data lines include first and second data lines for supplying first and second data signals, respectively, and a scanning signal for selecting the pixel in a predetermined cycle is a first signal of the pixel through the scanning line. And a second active device,
The first and second data signals are respectively supplied from the first and second data lines to the first and second capacitive elements through the first and second active elements, respectively.
The first data signal held by the first capacitive element is supplied to a third active element;
A current corresponding to the first data signal is supplied to the light emitting element through the third active element to enter the first lighting state,
During one scanning cycle, intermediate data is generated based on the second data signal, the intermediate data is supplied to the third active element, and the first lighting state of the light emitting element is changed to the intermediate data. An image display method comprising: a changing step of changing to a second lighting state by a current according to data.

A plurality of scanning lines; a plurality of data lines extending in a direction intersecting with the extending direction of the scanning lines; and pixels formed in a matrix by the data lines and the scanning lines. In the image display method of the image display device,
The data lines include first and second data lines for supplying first and second data signals, respectively, and a scanning signal for selecting the pixel in a predetermined cycle is a first signal of the pixel through the scanning line. And a second active device,
The first and second data signals are respectively supplied from the first and second data lines to the first and second capacitive elements through the first and second active elements, respectively.
The first data signal held by the first capacitive element is supplied to a third active element;
A current corresponding to the first data signal is supplied to the light emitting element through the third active element to enter the first lighting state,
During the one scanning cycle, the second data signal is supplied to the third active element, and the first lighting state of the light emitting element is changed to a second current by a current corresponding to the second data signal. An image display method comprising a changing step of changing to a lighting state.