US 7,924,298 B2 · Display control method, driving device for display device, display device, program, and storage medium

Abstract

A modulation processing section compares video data of a current frame and a previous frame representative value supplied from a frame memory, corrects the video data so that a gradation transition from a gradation indicated by the previous frame representative value to a gradation indicated by the video data is emphasized, and outputs the corrected video data. A judgment section compares both of the data and judges, out of a value calculated from the previous frame representative value by a representative value generating section and the video data, which is to be stored in the frame memory till a next frame begins. This allows for realizing a liquid crystal display device capable of preventing with a relatively small-scale circuit (alternatively, a relatively small amount of calculation) a phenomenon such that: although a response speed of a pixel is improved, the emphasis modulation and a response delay of the pixel are combined so that image quality in displaying moving images deteriorates.

Claims19

Dependent claims

A display control method, comprising the steps of:

(I) determining a representative value for correcting sets of video data serially supplied to a pixel of a display device, the determining being performed with respect to each of the sets of video data;
(II) storing the representative value till a next determining is performed;
and
(III) modulating current video data by referring to a previous representative value stored in the step (II), the modulating being performed so that a change from the previous representative value to the current video data is emphasized,
the step (I) including the sub-steps of:
(i) judging whether the current video data is to be regarded as a representative value or not, by comparing the previous representative value stored in the step (II) and the current video data, and
(ii) when it is judged that the current video data is not to be regarded as a representative value in the sub-step (i), calculating a representative value, through a predetermined procedure, based on at least the previous represeniative value out of the current video data and the previous representative value.

4 more elements

A driving device for a display device, comprising:

representative value generating means for determining a representative value for correcting sets of video data serially supplied to a pixel of the display device, the determining being performed with respect to each of the sets of video data;
representative value storage means in which the representative value is stored till a next determining is performed;
and
modulation means for modulating current video data by referring to a previous representative value stored in the representative value storage means, the modulating being performed so that a change from the previous representative value to the current video data is emphasized,
the representative value generating means including:
judgment means for judging whether the current video data is to be regarded as a representative value or not, by comparing the previous representative value stored in the representative value storage means and the current video data;
and
calculation means for, when the judgment means judges that the current video data is not to be regarded as a representative value, calculating the representative value, through a predetermined procedure, based on at least the previous representative value out of the current video data and the previous representative value.

5 more elements

Dependencies are inferred from the claim text.

Display control method, driving device for display device, display device, program, and storage medium

Life of this patent

Display control method, driving device for display device, display device, program, and storage medium

Life of this patent

Abstract

Claims19