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1. WO2019212486 - CONTROLLING LIGHT INTENSITY OF A DISPLAY PANEL

Publication Number WO/2019/212486
Publication Date 07.11.2019
International Application No. PCT/US2018/030212
International Filing Date 30.04.2018
IPC
G09G 3/06 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
04for presentation of a single character by selection from a plurality of characters, or by composing the character by combination of individual elements, e.g. segments
06using controlled light sources
CPC
G09G 2360/141
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
141the light conveying information used for selecting or modulating the light emitting or modulating element
G09G 2360/144
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
144the light being ambient light
G09G 2360/145
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
G09G 2360/16
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
16Calculation or use of calculated indices related to luminance levels in display data
G09G 3/32
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
22using controlled light sources
30using electroluminescent panels
32semiconductive, e.g. using light-emitting diodes [LED]
G09G 3/3406
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
3406Control of illumination source
Applicants
  • HEWLETT-PACKARD DEVELOPMENT COMPANY, L.P. [US]/[US]
Inventors
  • MARTINEZ, Juan
  • SO, Chi
Agents
  • WOODWORTH, Jeffrey, C.
  • BLOUNT, Barry, D.
  • STACY, Nathan, E.
  • ROGERS, Christopher, R.
  • HOLOMON, Jamilla, N.
Priority Data
Publication Language English (en)
Filing Language English (EN)
Designated States
Title
(EN) CONTROLLING LIGHT INTENSITY OF A DISPLAY PANEL
(FR) COMMANDE DE L'INTENSITÉ LUMINEUSE D'UN PANNEAU D'AFFICHAGE
Abstract
(EN) An example system includes a display panel comprising an adjustable light source. A light sensor is disposed proximate to the display panel on an opposite surface from the adjustable light source. A controller is used to measure an intensity of light from the light sensor and to control an intensity of the adjustable light source, based, at least in part, on the intensity of measured light.
(FR) Un système donné à titre d'exemple comprend un panneau d'affichage comprenant une source de lumière réglable. Un capteur de lumière est disposé à proximité du panneau d'affichage sur une surface à l'opposé de la source de lumière réglable. Un dispositif de commande est utilisé pour mesurer une intensité de lumière provenant du capteur de lumière et pour commander une intensité de la source de lumière réglable, sur la base, au moins en partie, de l'intensité de la lumière mesurée.
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