Display and display driving method
AssigneeSharp Kabushiki Kaisha
InventorYUSUKE SAKAKIBARA
Life of this patent
Estimating the term…
Abstract
A pixel is divided into a first subpixel and a second subpixel. A first data signal is input to a first drive unit that drives a first light-emitting element constituting the first subpixel, and a second data signal is input to a second drive unit that drives a second light-emitting element constituting the second subpixel. A gray scale value of the first data signal is smaller than a gray scale value of the second data signal.
Claims14
A driving method of a display including a first subpixel and a second subpixel constituting a pixel, a first light-emitting element constituting the first subpixel, a second light-emitting element constituting the second subpixel, a first drive unit configured to control a current density of a current flowing through the first light-emitting element, a second drive unit configured to control a current density of a current flowing through the second light-emitting element, and a controller configured to input a data signal to the first drive unit and the second drive unit,
- wherein each of the first light-emitting element and the second light-emitting element has element characteristics having, in a relationship between luminance and current density, a first region in which a luminance forms a downward convex shape,
- the controller causes a current of a first current density to flow into the first light-emitting element by inputting a data signal of a first gray scale value to the first drive unit and causes the first light-emitting element to emit light at a first luminance,
- the controller causes a current of a second current density to flow into the second light-emitting element by inputting a data signal of a second gray scale value to the second drive unit and causes the second light-emitting element to emit light at a second luminance, and
- when the first luminance and the second luminance are luminances included in the first region, the first gray scale value is smaller than the second gray scale value.
A display including a first subpixel and a second subpixel constituting a pixel, a first light-emitting element constituting the first subpixel, a second light-emitting element constituting the second subpixel, a first pixel circuit corresponding to the first subpixel, a second pixel circuit corresponding to the second subpixel, and a drive unit configured to supply a first data signal to the first pixel circuit and a second data signal to the second pixel circuit,
- wherein each of the first light-emitting element and the second light-emitting element has element characteristics having, in a relationship between luminance and current density, a first region in which a luminance forms a downward convex shape, a second region in which the luminance forms an upward convex shape and the luminance is higher than the luminance of the first region, and an inflection point present at a boundary between the first region and the second region,
- the first data signal is configured to cause a current of a first current density to flow through the first light-emitting element and to cause the first light-emitting element to emit light at a first luminance,
- the second data signal is configured to cause a current of a second current density to flow through the second light-emitting element and to cause the second light-emitting element to emit light at a second luminance, and
- at some of gray scales, a gray scale value of the first data signal is smaller than a gray scale value of the second data signal.
Dependencies are inferred from the claim text.