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1. WO2013050515 - DISPLAY DEVICE

Publication Number WO/2013/050515
Publication Date 11.04.2013
International Application No. PCT/EP2012/069694
International Filing Date 05.10.2012
IPC
G09G 3/34 2006.1
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
G02B 26/00 2006.1
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
G02B 26/005
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, modulating
004based on a displacement or a deformation of a fluid
005based on electrowetting
G09G 3/2011
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
2011by amplitude modulation
G09G 3/2014
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
2014by modulation of the duration of a single pulse during which the logic level remains constant
G09G 3/3446
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
3433using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
344based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
3446with more than two electrodes controlling the modulating element
G09G 3/348
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
3433using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
348based on the deformation of a fluid drop, e.g. electrowetting
Applicants
  • SAMSUNG LCD NETHERLANDS R & D CENTER B.V. [NL]/[NL]
Inventors
  • SLACK, Anthony
  • FEENSTRA, Bokke Johannes
Agents
  • BLASEBY, Matthew
Priority Data
1117268.106.10.2011GB
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) DISPLAY DEVICE
(FR) DISPOSITIF D'AFFICHAGE
Abstract
(EN) An electrowetting display device including a picture element, the picture element comprising: a space; a first surface facing the space; a second surface facing the space and the first surface; a first fluid, a second fluid and a third fluid, the first fluid and the third fluid being arranged on at least part of the first surface and the second surface, respectively, and the second fluid being immiscible with the first fluid and the third fluid, the first, second and third fluids being within the space; and a first electrode associated with the first surface and a second electrode associated with the second surface. The electrowetting display device comprises a control system for changing a configuration of the first, second and third fluids by applying a voltage level of a first voltage to the first electrode and by applying a voltage level of a second voltage to the second electrode, wherein the control system is arranged such that the voltage level of the first voltage is selected from a first plurality of voltage levels and the voltage level of the second voltage is selected from a second plurality of voltage levels, the second plurality of voltage levels comprising fewer voltage levels than the first plurality of voltage levels.
(FR) L'invention porte sur un dispositif d'affichage à électro-mouillage comprenant un élément d'image, l'élément d'image comprenant : un espace; une première surface en regard de l'espace; une deuxième surface en regard de l'espace et de la première surface; un premier fluide, un deuxième fluide et un troisième fluide, le premier fluide et le troisième fluide étant agencés sur au moins une partie de la première surface et de la deuxième surface, respectivement, et le deuxième fluide étant immiscible avec le premier fluide et le troisième fluide, les premier, deuxième et troisième fluides se trouvant à l'intérieur de l'espace; et une première électrode associée à la première surface et une deuxième électrode associée à la deuxième surface. Le dispositif d'affichage à électro-mouillage comprend un système de commande pour changer une configuration des premier, deuxième et troisième fluides par application d'un niveau de tension d'une première tension à la première électrode et par application d'un niveau de tension d'une deuxième tension à la deuxième électrode, le système de commande étant conçu de manière à ce que le niveau de tension de la première tension soit sélectionné parmi une première pluralité de niveaux de tension et le niveau de tension de la deuxième tension soit sélectionné parmi une deuxième pluralité de niveaux de tension, la deuxième pluralité de niveaux de tension comprenant moins de niveaux de tension que la première pluralité de niveaux de tension.
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