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1. US20190130853 - Apparatus for enhancing brightness uniformity of displayed image, display apparatus, and method for displaying image

Office
États-Unis d'Amérique
Numéro de la demande 15571615
Date de la demande 02.06.2017
Numéro de publication 20190130853
Date de publication 02.05.2019
Numéro de délivrance 10490145
Date de délivrance 26.11.2019
Type de publication B2
CIB
G09G 3/36
GPHYSIQUE
09ENSEIGNEMENT; CRYPTOGRAPHIE; PRÉSENTATION; PUBLICITÉ; SCEAUX
GDISPOSITIONS OU CIRCUITS POUR LA COMMANDE DE L'AFFICHAGE UTILISANT DES MOYENS STATIQUES POUR PRÉSENTER UNE INFORMATION VARIABLE
3Dispositions ou circuits de commande présentant un intérêt uniquement pour l'affichage utilisant des moyens de visualisation autres que les tubes à rayons cathodiques
20pour la présentation d'un ensemble de plusieurs caractères, p.ex. d'une page, en composant l'ensemble par combinaison d'éléments individuels disposés en matrice
34en commandant la lumière provenant d'une source indépendante
36utilisant des cristaux liquides
CPC
G09G 3/36
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
34by control of light from an independent source
36using liquid crystals
G09G 3/3607
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
3Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
20for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix ; no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
34by control of light from an independent source
36using liquid crystals
3607for displaying colours or for displaying grey scales with a specific pixel layout, e.g. using sub-pixels
G09G 2320/0233
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2320Control of display operating conditions
02Improving the quality of display appearance
0233Improving the luminance or brightness uniformity across the screen
G09G 2320/0271
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2320Control of display operating conditions
02Improving the quality of display appearance
0271Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
G09G 2320/0276
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2320Control of display operating conditions
02Improving the quality of display appearance
0271Adjustment of the gradation levels within the range of the gradation scale, e.g. by redistribution or clipping
0276for the purpose of adaptation to the characteristics of a display device, i.e. gamma correction
G09G 2360/147
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2360Aspects of the architecture of display systems
14Detecting light within display terminals, e.g. using a single or a plurality of photosensors
145the light originating from the display screen
147the originated light output being determined for each pixel
Déposants BOE TECHNOLOGY GROUP CO., LTD.
Beijing BOE Special Display Technology Co., Ltd.
Inventeurs Huizhong Zhu
Junguo Liu
Shenglin Sun
Mandataires Intellectual Valley Law, P.C.
Données relatives à la priorité 201610839774.2 21.09.2016 CN
Titre
(EN) Apparatus for enhancing brightness uniformity of displayed image, display apparatus, and method for displaying image
Abrégé
(EN)

The present application discloses a method for displaying image using a display panel. The method includes receiving a frame of image data, which is divided into a first portion and a second portion based on that each sub-pixel in the first portion has an initial grayscale value smaller than that of each subpixel in the second portion. The method includes converting the frame of image data into N frames of image data. Each sub-pixel in the first portion is provided with a first grayscale value in K of the N frames and a second grayscale value in N-K of the N frames, and each sub-pixel in the second portion is retained with its initial grayscale value. N is no smaller than 2 and K varies from 1 to N−1. The method includes displaying each of the N frames of images respectively based on the N frames of image data according to a frame refreshing frequency.


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