US 9,542,894 B2Granted

Display apparatus and control method thereof

AssigneeCanon Kabushiki Kaisha

InventorsTomoyuki Ohno, Atsushi Morita, Masaki Akamatsu

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Abstract

A display apparatus includes: a display unit configured to display an image; a light emission unit configured to individually control light emission for each of a plurality of divided regions; an acquisition unit configured to acquire, for each divided region, a characteristic value of the image displayed on each of the divided regions; and a control unit. The control unit controls light emission of the light emission unit such that: in a moving image region, in which only a moving image is displayed, among the plurality of divided regions, light is emitted at a brightness based on a characteristic value of the moving image region; and in a mixed region, in which both of the moving image and a still image are displayed, among the plurality of divided regions, light is emitted at predetermined brightness.

Claims14

Dependent claims

A display apparatus comprising:

a display unit configured to display an image on a screen;
a light emission unit configured to individually control light emission for each of a plurality of divided regions that configure the screen;
an acquisition unit configured to acquire a characteristic value of an image displayed on each of the plurality of divided regions;
and
a control unit configured to control the light emission of the light emission unit,
such that:
in a still image region, in which only a still image is displayed, among the plurality of divided regions, light is emitted at a first brightness based on a characteristic value of the still image displayed in the still image region;
in a moving image region, in which only a moving image is displayed, among the plurality of divided regions, light is emitted at a second brightness based on a characteristic value of the moving image displayed in the moving image region;
and
in a mixed region, in which both of a moving image and a still image are displayed, among the plurality of divided regions, light is emitted at a third brightness based on a characteristic value of the still image displayed in the mixed region, wherein the third brightness is not based on a characteristic of the moving image displayed in the mixed region.

7 more elements

A display apparatus comprising:

a display unit configured to display an image on a screen;
a light emission unit configured to individually control light emission for each of a plurality of divided regions that configure the screen;
an acquisition unit configured to acquire a characteristic value of an image displayed on each of the plurality of divided regions;
and
a control unit configured to control the light emission of the light emission unit,
such that:
in a still image region, in which only a still image is displayed, among the plurality of divided regions, light is emitted at a first brightness based on a characteristic value of the still image displayed in the still image region;
in a first divided region, which is adjacent to the still image region, among a plurality of divided regions in which a moving image is displayed, light is emitted at the first brightness;
and
in a second divided region, which is not adjacent to the still image region, among the plurality of divided regions in which the moving image is displayed, light is emitted at a second brightness based on a characteristic value of the moving image displayed in the second divided region.

7 more elements

Dependencies are inferred from the claim text.

Facts

Application: 14/035,044Filed 24 Sep 2013
Priority: JP 2012-21239926 Sep 2012
Published: US 2014/0085360 A127 Mar 2014
Granted: 10 Jan 2017
Term ends: Not estimatedThe source records don’t support an estimate.

Classification18 codes

G09G 3/3426
Using several illumination sources separately controlled corresponding to different display panel areas, e.g. along one dimension such as lines:…
G09G 3/36
By control of light from an independent source: using liquid crystals
G09G 3/3648
Control of matrices with row and column drivers: using an active matrix
G09G 5/14
Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators: display of multiple…