John L Frederick

US Patent:

8310502, Nov 13, 2012

Filed:

Jun 2, 2009

Appl. No.:

12/476943

Inventors:

Robert L. Myers - Loveland CO, US
John W. Frederick - Spring TX, US

Assignee:

Hewlett-Packard Development Company, L.P. - Houston TX

International Classification:

G09G 5/00
G09G 5/02
H04N 5/46
H04N 9/12
G02F 1/13
G06K 9/00
G06K 9/40
G09G 5/36
H04N 17/00
H04N 11/00
G03F 3/08

US Classification:

345593, 345549, 345589, 345619, 345629, 348179, 348552, 348557, 348563, 358519, 382167, 382254, 382274, 349 1

Abstract:

Systems and methods of providing user-selected color characteristics for an LCD device to a host system are disclosed. An exemplary method includes receiving user input at the LCD device, the user input specifying color information for each of a plurality of color presets selected by the user. The method also includes each time the user changes color information for each of the plurality of color presets selected by the user, merging the color information with static information for the LCD device. The method also includes communicating the merged color information and static information to the host system in a standardized format.

US Patent:

20120013635, Jan 19, 2012

Filed:

May 29, 2009

Appl. No.:

13/258501

Inventors:

Ed Beeman - Fort Collins CO, US
Bob Myers - Loveland CO, US
John Frederick - Spring TX, US

International Classification:

G09G 5/02

US Classification:

345590

Abstract:

A color accurate display device is configured to receive an encoded first color space having a first gamut from a set of encoded primaries {R, G, B} and a first white point. The device includes a display panel having an active area configured for an encoded second color space having a second white point and a set of native primaries each with a characterized tone response with respect to the second color space and a measured tone response from the display panel, the primaries having a second gamut larger than and including the first gamut. Also included is a color space conversion circuit configured to convert the set of encoded primaries {R, G, B} and first white point of the first color space to the set of native primaries and second white point compensating for each characterized tone response of the second color space.