Method and apparatus for displaying image on image display device
A method for displaying an image on an image displaying device includes the steps of: comparing gray scale level of an image signal for the light emitting element with given threshold level; and when the gray scale level is higher than the threshold level, driving the light emitting element by a driving signal corresponding to the gray scale level, and when the gray scale level is lower than the threshold level, driving the light emitting element by a dithering driving signal including a driving signal corresponding to the threshold level.
1. A method for displaying an image on an image displaying device, the method comprising:
comparing a gray scale level of an image signal for a light-emitting element of the image displaying device with a given threshold level, wherein the given threshold level is based on a type of the image and a total luminance of the image;
driving, when the gray scale level is higher than the given threshold level, the light-emitting element by a first driving signal corresponding to the gray scale level; and
driving, when the gray scale level is lower than the given threshold level, the light-emitting element by a dithering driving signal including a second driving signal corresponding to the given threshold level.
2. The method of claim 1 , wherein the given threshold level is a first threshold level when the type of the image is a still image and is a second threshold level when the type of the image is a moving image, and wherein first threshold level is greater than the second threshold level.
3. The method of claim 1 , wherein the type of the image is a still image.
4. The method of claim 1 , wherein the type of the image is a moving image.
5. The method of claim 1 , wherein the dithering driving signal includes temporal dithering and spatial dithering.
6. The method of claim 1 , wherein the dithering driving signal comprises temporal dithering or spatial dithering.
7. The method of claim 1 , wherein the light-emitting element is an organic light-emitting diode (OLED).
8. An apparatus for displaying an image on an image displaying device, the apparatus comprising:
a memory configured to store instructions; and
one or more processors coupled to the memory and configured to execute the instructions to cause the apparatus to:
determine a given threshold level based on a type of the image and a total luminance of the image;
compare a gray scale level of an image signal for a light emitting element of the image displaying device with the given threshold level;
select a first driving signal corresponding to the gray scale level when the gray scale level is higher than the given threshold level; or
select a dithering driving signal including a second driving signal corresponding to the given threshold level when the gray scale level is lower than the given threshold level; and
drive the light emitting element by the first driving signal or the dithering driving signal.
9. The apparatus of claim 8 , wherein the given threshold level is a first threshold level when the type of the image is a still image and is a second threshold level when the type of the image is a moving image, and wherein first threshold level is greater than the second threshold level.
10. The apparatus of claim 8 , wherein the type of the image is a still image.
11. The apparatus of claim 8 , wherein the type of the image is a moving image.
12. The apparatus of claim 8 , wherein the dithering driving signal comprises temporal dithering and spatial dithering.
13. The apparatus of claim 8 , wherein the dithering driving signal comprises temporal dithering or spatial dithering.
14. The apparatus of claim 8 , wherein the light emitting element is an organic light emitting diode (OLED).
15. A computer program product comprising computer-executable instructions for displaying an image on an image displaying device, the computer-executable instructions stored on a non-transitory computer-readable storage medium, wherein the computer-executable instructions when executed by one or more processors of an apparatus, cause the apparatus to:
determine a given threshold level based on a type of the image and a total luminance of the image;
compare a gray scale level of an image signal for a light emitting element of an image displaying device with the given threshold level;
select a first driving signal corresponding to the gray scale level when the gray scale level is higher than the given threshold level; or
select a dithering driving signal including a second driving signal corresponding to the given threshold level when the gray scale level is lower than the given threshold level; and
drive the light emitting element by the first driving signal or the dithering driving signal.
16. The computer program product of claim 15 , wherein the given threshold level is a first threshold level when the type of the image is a still image and is a second threshold level when the type of the image is a moving image, and wherein first threshold level is greater than the second threshold level.
17. The computer program product of claim 15 , wherein the type of the image is a moving image.
18. The computer program product of claim 15 , wherein the dithering driving signal comprises temporal dithering and spatial dithering.
19. The computer program product of claim 15 , wherein the dithering driving signal comprises temporal dithering or spatial dithering.
20. The computer program product of claim 15 , wherein the light emitting element is an organic light emitting diode (OLED).