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1. WO2020205004 - DISPLAY WITH SWITCHING CONFIGURABLE FOR POWER CONSUMPTION AND SPEED

Publication Number WO/2020/205004
Publication Date 08.10.2020
International Application No. PCT/US2019/062219
International Filing Date 19.11.2019
IPC
G09G 3/3275 2016.01
GPHYSICS
09EDUCATING; 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
22using controlled light sources
30using electroluminescent panels
32semiconductive, e.g. using light-emitting diodes
3208organic, e.g. using organic light-emitting diodes
3275Details of drivers for data electrodes
G09G 3/36 2006.01
GPHYSICS
09EDUCATING; 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
34by control of light from an independent source
36using liquid crystals
CPC
G09G 2310/027
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
0264Details of driving circuits
027Details of drivers for data electrodes, the drivers handling digital grey scale data, e.g. use of D/A converters
G09G 2320/0223
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
0223Compensation for problems related to R-C delay and attenuation in electrodes of matrix panels, e.g. in gate electrodes or on-substrate video signal electrodes
G09G 2320/0252
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
0252Improving the response speed
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 2340/0435
GPHYSICS
09EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
GARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
2340Aspects of display data processing
04Changes in size, position or resolution of an image
0407Resolution change, inclusive of the use of different resolutions for different screen areas
0435Change or adaptation of the frame rate of the video stream
G09G 3/2092
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
2092Details of a display terminals using a flat panel, the details relating to the control arrangement of the display terminal and to the interfaces thereto
Applicants
  • GOOGLE LLC [US]/[US]
Inventors
  • CHOI, Sangmoo
  • KANG, Chang Ju
Agents
  • GUENTHER, Brett
  • BELLERMANN, Mark R.W.
  • BENNETT, Daniel M.
  • BRAKE, R. Edward
  • FORD, Timothy D.
  • HUGHES, William G.
  • KEY, Joseph F.
  • GROVER, Melanie
  • SODERBERG, J. Richard
Priority Data
16/372,86502.04.2019US
Publication Language English (EN)
Filing Language English (EN)
Designated States
Title
(EN) DISPLAY WITH SWITCHING CONFIGURABLE FOR POWER CONSUMPTION AND SPEED
(FR) DISPOSITIF D'AFFICHAGE DOTÉ D'UNE COMMUTATION CONFIGURABLE PERMETTANT LA CONSOMMATION D'ÉNERGIE ET LA VITESSE
Abstract
(EN)
A flat panel display that includes a switch bank to couple a signal from a driver integrated circuit to a column data line of a display panel is disclosed. The switch bank can be adjusted based on the frame rate of the display. When the frame rate is high, all sub-switches in the switch bank may be used to reduce an ON resistance of the switch bank. This high frame rate configuration may maintain or increase the speed at which pixels can be controlled but consumes more power. Accordingly, when the frame rate is low, a portion of the sub-switches in the switch bank are unused to reduce the power consumed. This low frame rate configuration may maintain or decrease the speed at which pixels of the display can be controlled but consumes less power.
(FR)
L'invention concerne un dispositif d'affichage à écran plat qui comprend un bloc de commutateurs permettant de coupler un signal d'un circuit intégré d'attaque à une ligne de données de colonne d'un panneau d'affichage. Le bloc de commutateurs peut être réglé sur la base de la fréquence de trames du dispositif d'affichage. Lorsque la fréquence de trames est élevée, tous les sous-commutateurs dans le bloc de commutateurs peuvent être utilisés afin de réduire une résistance en marche du bloc de commutateurs. Cette fréquence de trames élevée peut maintenir ou augmenter la vitesse à laquelle des pixels peuvent être commandés mais consomme davantage d'énergie. En conséquence, lorsque la fréquence de trames est basse, une partie des sous-commutateurs dans le bloc de commutateurs ne sont pas utilisés afin de réduire l'énergie consommée. Cette configuration à basse fréquence de trames peut maintenir ou diminuer la vitesse à laquelle des pixels du dispositif d'affichage peuvent être commandés mais consomme moins d'énergie.
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