Sticking phenomenon correction method, self-luminous apparatus, sticking phenomenon correction apparatus and program

1. A sticking phenomenon correction method for correcting a sticking phenomenon of a self-luminous apparatus wherein a plurality of self-luminous elements are arranged in a matrix while said self-luminous apparatus is in a used state, comprising the steps of:

calculating a deterioration amount difference appearing between a correction object pixel and a reference pixel within a first light emission period of time using a deterioration ratio derived from gradation values of the pixels;

deriving a deterioration ratio for correction for the correction object pixel necessary to eliminate the calculated deterioration amount difference within a second light emission period of time using a deterioration ratio of the reference pixel;

converting the derived deterioration ratio for correction into a corresponding gradation value; and

driving the correction object pixel to emit light with the converted gradation value.

2. The sticking phenomenon correction method according to claim 1 , wherein that one of said self-luminous elements which corresponds to the correction object pixel and another one of said self-luminous elements which corresponds to the reference pixel satisfy an initial condition that the self-luminous elements emit light with the luminances equal to each other in the same driving condition.

3. The sticking phenomenon correction method according to claim 1 , wherein the reference pixel is set for each of plural ones of said self-luminous elements which emit light with the same color.

4. The sticking phenomenon correction method according to claim 1 , wherein the reference pixel is a pixel set imaginarily for the calculation of a correction amount.

5. The sticking phenomenon correction method according to claim 1 , wherein the corresponding relationship between the deterioration ratio and the gradation value is given taking elapsed time information into consideration.

6. The sticking phenomenon correction method according to claim 1 , wherein a correspondence that is established between relative degradations of pixels and corrective gradation data is to be applied over a particular period of time.

7. The sticking phenomenon correction method according to claim 1 , wherein a deterioration amount difference Y appearing between a certain correction object pixel and the reference pixel within a first light emission period t 1 is calculated as Y=(α1−α2)·t 1 where α1 is the deterioration ratio of the correction object pixel and α2 is the deterioration ratio of the reference pixel within the first light emission period, and then a deterioration ratio β1 of the correction object pixel necessary to eliminate the deterioration amount difference Y within the second light emission period t 2 is calculated as β1=β2−Y/t 2 where β2 is the deterioration ratio of the reference pixel within the second light emission period.

8. A self-luminous apparatus wherein a plurality of self-luminous elements are disposed in a matrix on a substrate, comprising:

a deterioration amount difference arithmetic operation section for calculating a deterioration amount difference appearing between a correction object pixel and a reference pixel within a first light emission period of time using a deterioration ratio derived from gradation values of the pixels;

a correcting deterioration ratio calculation section for deriving a deterioration ratio for correction for the correction object pixel necessary to eliminate the calculated deterioration amount difference within a second light emission period of time using a deterioration ratio of the reference pixel; and

a gradation value correction section for converting the derived deterioration ratio for correction into a corresponding gradation value and driving the correction object pixel to emit light with the converted gradation value.

9. A self-luminous apparatus wherein a plurality of self-luminous elements are disposed in a matrix on a substrate, comprising:

a conversion table for retaining a coordinated relationship between gradation values and deterioration ratios of said self-luminous elements;

a deterioration amount difference arithmetic operation section for converting gradation values of said pixels into deterioration ratios using said conversion table and calculating a deterioration amount difference appearing between each correction object pixel and a reference pixel within a first light emission period of time;

a correcting deterioration ratio calculation section for deriving a deterioration ratio for correction for the correction object pixel necessary to eliminate the calculated deterioration amount difference within a second light emission period of time using a deterioration ratio of the reference pixel; and

a gradation value correction section for converting the derived deterioration ratio for correction into a corresponding gradation value using said conversion table and driving the correction object pixel to emit light with the converted gradation value.

10. A self-luminous apparatus wherein a plurality of self-luminous elements are disposed in a matrix on a substrate, comprising:

a first arithmetic operation section for converting gradation values of pixels into deterioration ratios by an arithmetic operation process;

a deterioration amount difference arithmetic operation section for calculating a deterioration amount difference appearing between each correction object pixel and a reference pixel within a first light emission period using the deterioration ratios obtained by the conversion process;

a correcting deterioration ratio calculation section for deriving a deterioration ratio for the correction object pixel necessary to eliminate the calculated deterioration amount difference within a second light emission period using the deterioration ratio of the reference pixel;

a second arithmetic operation section for converting the derived deterioration ratio for correction into a gradation value by an arithmetic operation process; and

a gradation value correction section for driving the correction object pixel to emit light with the gradation value determined by the conversion process.

11. A sticking phenomenon correction apparatus for a self-luminous apparatus wherein a plurality of self-luminous elements are disposed in a matrix on a substrate, comprising:

a deterioration amount difference arithmetic operation section for calculating a deterioration amount difference appearing between a correction object pixel and a reference pixel within a first light emission period of time using a deterioration ratio derived from gradation values of the pixels;

a correcting deterioration ratio calculation section for deriving a deterioration ratio for correction for the correction object pixel necessary to eliminate the calculated deterioration amount difference within a second light emission period of time using a deterioration ratio of the reference pixel; and

a gradation value correction section for converting the derived deterioration ratio for correction into a corresponding gradation value and driving the correction object pixel to emit light with the converted gradation value.

12. A non-transitory computer-readable storage medium having a program for causing a computer incorporated in a self-luminous apparatus wherein a plurality of self-luminous elements are disposed in a matrix to execute:

a process of calculating a deterioration amount difference appearing between a correction object pixel and a reference pixel within a first light emission period of time using a deterioration ratio calculated from gradation values of the pixels;

a process of deriving a deterioration ratio for correction for the correction object pixel necessary to eliminate the calculated deterioration amount difference within a second light emission period of time using a deterioration ratio of the reference pixel;

a process of converting the calculated deterioration ratio for correction into a corresponding gradation value; and

a process of driving the correction object pixel to emit light with the converted gradation value;

wherein a sticking phenomenon of said self-luminous apparatus is corrected while said self-luminous apparatus is in a used state.