Patents by Inventor Gerardus P. Karman
Gerardus P. Karman has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
-
Patent number: 8891032Abstract: A multi-view display is arranged to display views directed to respective viewing zones, comprising pluralities of imaging units and color filters, each of said color filters is associated with one of said imaging units, the color filters being arranged according to a first pitch and in a first sequence of colors, and a barrier including a plurality of color portions comprising color filter material, the color portions being arranged according to a second pitch that is substantially equal to twice the first pitch and in a second sequence of colors that corresponds to the first sequence of colors when reversed in order, the barrier is positioned so that light exits the display panel after passing through one color portion and one color filter and the color portions of the barrier are configured to cooperate with the color filters to selectively direct said light to the first and second viewing zones.Type: GrantFiled: September 26, 2012Date of Patent: November 18, 2014Assignee: Koninklijke Philips N.V.Inventors: Willem L. Ijzerman, Hugo J. Cornelissen, Tim Dekker, Gerardus P. Karman
-
Patent number: 8300162Abstract: A multi-view display (49) is arranged to provide large viewing zones (23, 24) while producing little or no cross-talk. The display may include a barrier (20) comprising a plurality of color portions (20a, 20b, 20c) that co-operate with color filters (19a-19f) in a display panel (14) to selectively direct light to the viewing zones (23, 24). A lenticular screen (30) may be arranged to create or image light lines onto imaging units (32a, 32f) of the display panel (14) that are spaced from one another, so that adjacent units (32a, 32f) are illuminated by light from different lenses (30a, 30b, 30c), directed towards different viewing zones (23, 24). A light source (35) may generate the light at positions aligned with boundaries between adjacent lenses (30a, 30b, 30c).Type: GrantFiled: September 16, 2011Date of Patent: October 30, 2012Assignee: Koninklijke Philips Electronics N.V.Inventors: Willem L. Ijzerman, Hugo J. Cornelissen, Tim Dekker, Gerardus P. Karman
-
Publication number: 20120002120Abstract: A multi-view display (49) is arranged to provide large viewing zones (23, 24) while producing little or no cross-talk. The display may include a barrier (20) comprising a plurality of colour portions (20a, 20b, 20c) that co-operate with colour filters (19a-19f) in a display panel (14) to selectively direct light to the viewing zones (23, 24). A lenticular screen (30) may be arranged to create or image light lines onto imaging units (32a, 32f) of the display panel (14) that are spaced from one another, so that adjacent units (32a, 32f) are illuminated by light from different lenses (30a, 30b, 30c), directed towards different viewing zones (23, 24). A light source (35) may generate the light at positions aligned with boundaries between adjacent lenses (30a, 30b, 30c).Type: ApplicationFiled: September 16, 2011Publication date: January 5, 2012Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Willem L. Ijzerman, Hugo J. Cornelissen, Tim Dekker, Gerardus P. Karman
-
Patent number: 8045069Abstract: A multi view display (49) is arranged to provide large viewing zones (23, 24) while producing little or no cross-talk The display may include a barrier (20) comprising a plurality of color portions (20a, 20b, 20c) that co-operate with color filters (19a-19f) in a display panel (14) to selectively direct light to the viewing zones (23, 24) A lenticular screen (30) may be arranged to create or image light lines onto imaging units (32a, 32f) of the display panel (14) that are spaced from one another, so that adjacent units (32a, 32f) are illuminated by light from different lenses (30a, 30b, 30c), directed towards different viewing zones (23, 24) A light source (35) may generate the light at positions aligned with boundaries between adjacent lenses (30a, 30b, 30c) The imaging units may be operated so that units (32a, 32b) displaying information for the first viewing zone (23) are separated from units (32d, 32e) displaying information for the second viewing zone (24) by units (32c, 32f) not used to display informaType: GrantFiled: September 23, 2004Date of Patent: October 25, 2011Assignee: Koninklijke Philips Electronics N.V.Inventors: Willem L. Ijzerman, Hugo J. Cornelissen, Tim Dekker, Gerardus P. Karman
-
Patent number: 7808591Abstract: A display device for displaying a three dimensional image such that different views are displayed according to the viewing angle. The display device includes a display panel having separately addressable pixels for displaying the image, where the pixels are grouped such that different pixels in a group correspond to different views. The display device further includes a retarder in optical association with the display panel. The retarder includes retarder pixels, where at least one retarder pixel is associated with each corresponding pixel in the display panel. Optical parameters of the retarder pixels are varied as function of the viewing angle associated with the corresponding pixel in the display panel.Type: GrantFiled: September 9, 2004Date of Patent: October 5, 2010Assignee: Koninklijke Philips Electronics, N.V.Inventors: Gerardus P. Karman, Volker Schoellmann
-
Patent number: 7719552Abstract: A display device for displaying a three dimensional image such that different views are displayed according to the viewing angle, the display device including a display panel having a plurality of separately addressable pixels for displaying said image. The pixels are grouped such that different pixels in a group correspond to different views of the image, each pixel in a group being positioned relative to a respective discrete light source, and pixel being separately controllable to vary an optical characteristic of each pixel to generate an image according to received image data. The pixel sizes within a group vary as a function of the viewing angle of the pixels with respect to the respective light source, so that the characteristics of the different views are independent of viewing angle.Type: GrantFiled: February 17, 2005Date of Patent: May 18, 2010Assignee: Koninklijke Philips Electronics N.V.Inventor: Gerardus P. Karman
-
Patent number: 7619604Abstract: A display device comprises a backlight (6) and a light modulating layer (5) such as an LCD device. The backlight (6) can be controlled to operate as a single homogenous light source for producing 2D images or a series of narrow parallel light sources for producing 3D images. Preferably, the backlight (6) is an OLED device and the 2D/3D mode switching is achieved by selectively energising all or a subset of parallel control electrodes (11) of the OLED device.Type: GrantFiled: July 22, 2004Date of Patent: November 17, 2009Assignee: Koninklijke Philips Electronics N.V.Inventors: Gerardus P. Karman, Marcellinus P. C. M. Krijn, Volker Schoellmann
-
Publication number: 20080150936Abstract: A display device for displaying a three dimensional image such that different views are displayed according to the viewing angle, the display device including a display panel having a plurality of separately addressable pixels for displaying said image. The pixels are grouped such that different pixels in a group correspond to different views of the image, each pixel in a group being positioned relative to a respective discrete light source, and pixel being separately controllable to vary an optical characteristic of each pixel to generate an image according to received image data. The pixel sizes within a group vary as a function of the viewing angle of the pixels with respect to the respective light source, so that the characteristics of the different views are independent of viewing angle.Type: ApplicationFiled: February 17, 2005Publication date: June 26, 2008Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.Inventor: Gerardus P. Karman