US 9,001,099 B2Granted

Image display and image display method

AssigneeSony Corporation

InventorsMunenori Ono, Katsuhide Uchino, Hiroshi Hasegawa, Kazuo Nakamura

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Abstract

An image display includes: a display panel in which a plurality of pixels including first display elements, respectively, are two-dimensionally arranged; a drive section deriving, from a plurality of pieces of still image data and display times of a plurality of still images based on the plurality of pieces of still image data, an accumulated display time of each first display element in each still image data when the plurality of still images are sequentially displayed from one to another, and deriving, from the accumulated display time of each first display element derived in each still image data and degradation characteristic data stored in a memory section, a correction amount of each still image data in each pixel, and further sequentially displaying a plurality of still images based on a plurality of pieces of still image data corrected with use of the obtained correction amount from one to another.

Claims8

Dependent claims

An image display comprising:

a display panel including a display region where a plurality of pixels including first display elements of a self-luminous type, respectively, are two-dimensionally arranged;
a memory section to store degradation characteristic data of the first display elements;
and
a drive section configured to:
derive an accumulated display time for each first display element of the display panel, wherein the accumulated display time for each first display element is derived as:
T
n
⁡
(
x
,
y
)
=
∑
n
=
1
N
⁢
⁢
α
n
×
K
n
⁡
(
x
,
y
)
×
Δ
⁢
⁢
T
n
,
where αn is a coefficient for gradation for input still image n of a plurality N of input still images, Kn(x,y) is gradation data for coordinates (x ,y) in input still image n, and ΔTn is a display time for image n;
determine, from the derived accumulated display time of said each first display element and the degradation characteristic data stored in the memory section, a correction amount for each first display element;
and
instruct the display panel to sequentially display, on the display region, a plurality of corrected still images corresponding to the plurality of input still images-corrected with use of the determined correction amount for each first display element.

40 more elements

An image display method in an image display including a display panel which includes a display region where a plurality of pixels including display elements of a self-luminous type, respectively, are two-dimensionally arranged, the method comprising:

deriving an accumulated display time for each display element of the display panel, wherein the accumulated display time for each first display element is derived as:
T
n
⁡
(
x
,
y
)
=
∑
n
=
1
N
⁢
⁢
α
n
×
K
n
⁡
(
x
,
y
)
×
Δ
⁢
⁢
T
n
,
where αn, is a coefficient for gradation for input still image n of n=1 a plurality N of input still images, Kn(x,y) is gradation data for coordinates (x y) in input still image n, and ΔTn is a display time for image n;
determining, from the derived accumulated display time of said each first display element and the degradation characteristic data, a correction amount-for each of the display elements;
and
sequentially displaying, on the display region, a plurality of corrected still images corresponding to the plurality of input still images corrected with use of the-determined correction amount for each of the display elements.

36 more elements

Dependencies are inferred from the claim text.

Facts

Application: 12/943,518Filed 10 Nov 2010
Priority: JP 2009-26225117 Nov 2009
Published: US 2011/0115773 A119 May 2011
Granted: 7 Apr 2015
Term ends: Not estimatedThe source records don’t support an estimate.

Classification7 codes

G09G 3/3233
Using an active matrix: with pixel circuitry controlling the current through the light-emitting element
G09G 2300/0842
Several active elements per pixel in active matrix panels: forming a memory circuit, e.g. a dynamic memory with one capacitor
G09G 2320/046
Preventing or counteracting the effects of ageing: dealing with screen burn-in prevention or compensation of the effects thereof
G09G 2320/048
Preventing or counteracting the effects of ageing: using evaluation of the usage time