US 7,505,025 B2Granted

Arrangement with a flat screen panel

AssigneeEIZO Corporation

InventorRalf Edelbrock

Life of this patent

Estimating the term…

Loading patent…

Abstract

An arrangement with a panel of a flat screen and a graphics processor, to which a digitized image signal can be applied. A lookup table evaluates the digitized image signal and transmits the digitized image signal to the panel via an interface, whereby the image information is visually displayed. Suitable means are used to reduce interfering influences on the image reproduction characteristic of the panel due to aging effects of the light transmitting parts of the panel, e.g., due to aging effects of the panel glass, the LCD fluid or the diffuser and/or polarization foils. The sensor is only visible above the display surface during a calibration phase. The image reproduction characteristic is adjusted automatically on site, e.g., while the flat screen is in use. No service personnel are required for this purpose.

Claims11

Dependent claims

An arrangement comprising:

a panel of a flat screen,
a graphics processor to which a digitized image signal is applied,
a lookup table configured to evaluate the digitized image signal and transmit the signal to the panel via an interface, whereby image information from the signal is displayed on the panel of the flat screen,
wherein, during a calibration phase, a test image is displayed on the panel of the flat screen and a luminance of the test image is measured by a sensor, and the sensor for measuring the luminance of the test image on the panel is arranged in a standby position in an area of the flat screen that is not visible to a viewer,
further comprising a pivoting device carrying the sensor to attach the sensor to the flat screen and to pivot the sensor substantially parallel to the panel from the standby position into a position for measuring the luminance of the test image on the panel, and
wherein the graphics processor adjusts the lookup table as a function of the measured luminance.

3 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/015,552Filed 20 Dec 2004
Priority: DE 103 59 98719 Dec 2003
Published: US 2005/0190136 A11 Sep 2005
Granted: 17 Mar 2009
Term ends: Not estimatedThe source records don’t support an estimate.

Classification9 codes

G09G 3/2003
For presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged…:…
G02F 1/1336
Structural association of cells with optical devices, e.g. polarisers or reflectors: illuminating devices
G02F 2201/58
Constructional arrangements not provided for in groups G02F1/00 - G02F7/00: arrangements comprising a monitoring photodetector
G09G 2320/043
Maintaining the quality of display appearance: preventing or counteracting the effects of ageing

Family

US 2005/0190136 A1Pre-grant publication · published 1 Sep 2005
US 7,505,025 B2This patent

From the US filing history. Foreign family members aren’t listed.

Timeline

Citations

Open elsewhere

Building an agent or pulling many patents? Use the API or MCP server instead of scraping pages. Get an API key