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1. WO2014168657 - SEQUENCE AND TIMING CONTROL OF WRITING AND REWRITING PIXEL MEMORIES WITH SUBSTANTIALLY LOWER DATA RATE

Publication Number WO/2014/168657
Publication Date 16.10.2014
International Application No. PCT/US2014/000071
International Filing Date 05.04.2014
IPC
G02B 26/00 2006.01
GPHYSICS
02OPTICS
BOPTICAL ELEMENTS, SYSTEMS, OR APPARATUS
26Optical devices or arrangements using movable or deformable optical elements for controlling the intensity, colour, phase, polarisation or direction of light, e.g. switching, gating or modulating
CPC
G09G 2310/0221
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2310Command of the display device
02Addressing, scanning or driving the display screen or processing steps related thereto
0202Addressing of scan or signal lines
0221with use of split matrices
G09G 2330/021
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2330Aspects of power supply; Aspects of display protection and defect management
02Details of power systems and of start or stop of display operation
021Power management, e.g. power saving
G09G 2350/00
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2350Solving problems of bandwidth in display systems
G09G 3/2022
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
2007Display of intermediate tones
2018by time modulation using two or more time intervals
2022using sub-frames
Applicants
  • ISHII, Fusao [US]/[US]
Inventors
  • ISHII, Fusao
Agents
  • LIN, Bo-In
Priority Data
61/853,71310.04.2013US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) SEQUENCE AND TIMING CONTROL OF WRITING AND REWRITING PIXEL MEMORIES WITH SUBSTANTIALLY LOWER DATA RATE
(FR) CONTRÔLE DE SÉQUENCES ET DE TEMPORISATIONS SE RAPPORTANT À L'ÉCRITURE ET À LA RÉÉCRITURE DES MÉMOIRES DE PIXEL À UN DÉBIT BINAIRE SENSIBLEMENT INFÉRIEUR
Abstract
(EN)
A Display system driven with binary pulse-width-modulation requires very high data transfer rate to achieve high grayscale. This invention discloses the embodiments of hardware structures and configurations which enable to reduce substantially the data transfer rate using non-sequential order of binary bits, wherein the combination of the sequences of binary bits is selected from the combinations which avoid simultaneous writing of multiple rows. The implementation of this invention substantially reduces the power consumption and the number of connecting pads of display chip.
(FR)
L'invention concerne un système d'affichage entraîné par modulation binaire d'impulsions en durée qui requiert un débit de transfert de données très élevé pour un niveau de gris élevé. L'invention concerne les modes de réalisation de structures et de configurations de matériel qui permettent de réduire sensiblement le débit de transfert de données en utilisant un ordre non séquentiel de bits binaires, la combinaison des séquences de bits binaires étant sélectionnée parmi des combinaisons qui évitent l'écriture simultanée de rangées multiples. La mise en œuvre de cette invention réduit sensiblement la consommation électrique et le nombre de plages de contact de la puce d'affichage.
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