Patents by Inventor Daniel E. Evanicky
Daniel E. Evanicky 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: 8432411Abstract: A method, computer-usable medium, and system for processing graphical data for display on a multi-component display is disclosed. Embodiments improve the display quality of multi-component displays by modifying graphical data to preemptively compensate for distortion caused by interstitial layers and/or display screens of the multi-component display, thereby enabling display of graphical objects from multi-component displays with improved optical characteristics. For example, where components of a multi-component display blur displayed images, graphical data used to display graphical objects may be modified to sharpen the graphical objects before display. The pre-sharpening amplifies the high frequency components of the displayed graphical objects to compensate for the dampening caused by passing the graphical objects through the components of the multi-component display.Type: GrantFiled: May 18, 2007Date of Patent: April 30, 2013Assignee: Pure Depth LimitedInventors: Gareth Paul Bell, Daniel E. Evanicky, Edward Maurice Granger
-
Patent number: 8416149Abstract: A method of controlling brightness, color, hue, color temperature, gamma response or contrast of at least one image for display on a multi-layer display device characterized by carrying out the steps of: receiving said at least one image(s) to be displayed, detecting the brightness, color, hue, color temperature, gamma response or contrast of said image(s) to be displayed, determining the transmissivity of each layer of the multi layer display device in the localized area of said image(s) to achieve the brightness, color, hue, color temperature, gamma response and/or contrast detected or received, communicating the determined transmissivity of each layer of the multi layer display device in the localized area of said image(s) to a display device or storage device. A software device designed to do the same and a display device which can be utilized to controlling brightness, color, hue, color temperature, gamma response or contrast of at least one image.Type: GrantFiled: June 25, 2003Date of Patent: April 9, 2013Assignee: Pure Depth LimitedInventor: Daniel E. Evanicky
-
Patent number: 7782345Abstract: A flat panel LCD includes electronic circuitry for coupling to a host computer to receive a white-balance adjustment control signal, and electronic circuitry for receiving image data to be rendered on the flat panel LCD. Further, the flat panel LCD of one embodiment is configured for coupling to a color-sensing device to receive optical characteristics data of the flat panel LCD detected by the color-sensing device. The white balance adjustment mechanisms include the provision of two or more light sources of differing color temperature, whose brightness can be independently varied (and distributed through a light distribution mechanism) to adjust color temperature without altering the grayscale resolution of the RGB colors. The flat panel LCD further includes white balance adjustment software and gamma correction software for generating white-balance adjustment control signals and appropriate gamma correction curves.Type: GrantFiled: November 14, 2006Date of Patent: August 24, 2010Assignee: Graphics Properties Holdings, Inc.Inventors: Daniel E. Evanicky, Oscar Ivan Medina
-
Publication number: 20080284792Abstract: A method, computer-usable medium, and system for processing graphical data for display on a multi-component display is disclosed. Embodiments improve the display quality of multi-component displays by modifying graphical data to preemptively compensate for distortion caused by interstitial layers and/or display screens of the multi-component display, thereby enabling display of graphical objects from multi-component displays with improved optical characteristics. For example, where components of a multi-component display blur displayed images, graphical data used to display graphical objects may be modified to sharpen the graphical objects before display. The pre-sharpening amplifies the high frequency components of the displayed graphical objects to compensate for the dampening caused by passing the graphical objects through the components of the multi-component display.Type: ApplicationFiled: May 18, 2007Publication date: November 20, 2008Inventors: Gareth Paul Bell, Daniel E. Evanicky, Edward Maurice Granger
-
Patent number: 7136076Abstract: A system and method are described herein for controlling the white balance and providing gamma correction without compromising gray-scale dynamic range in a flat panel liquid crystal display (LCD). According to one embodiment of the present invention, the flat panel LCD includes electronic circuitry for coupling to a host computer to receive a white-balance adjustment control signal, and electronic circuitry for receiving image data to be rendered on the flat panel LCD. Further, the flat panel LCD of one embodiment is configured for coupling to a color-sensing device to receive optical characteristics data of the flat panel LCD detected by the color-sensing device. The white balance adjustment mechanisms include the provision of two or more light sources of differing color temperature, whose brightness can be independently varied (and distributed through a light distribution mechanism) to adjust color temperature without altering the grayscale resolution of the RGB colors.Type: GrantFiled: August 25, 2003Date of Patent: November 14, 2006Assignee: Silicon Graphics, Inc.Inventors: Daniel E. Evanicky, Oscar Ivan Medina
-
Patent number: 6816145Abstract: A large area wide aspect ratio flat panel display having high resolution for high information content display. The present invention includes a liquid crystal flat panel display monitor having a wide aspect ratio. In one embodiment, the wide aspect ratio is substantially 1.6:1, having 1,600 pixels across the horizontal and 1,024 across the vertical. In this embodiment, the present invention is an SXGA-wide flat panel display monitor having high resolution for high information content display. The monitor of the present invention is particularly well suited for the display of text, graphics and other types of still and/or motion audio/visual works. The wide aspect ratio allows the display of multiple pages, side-by-side, thereby facilitating certain tasks such as desktop publishing, presentation of interactive windows, presentation of menus, chart viewing, digital photography, tactical military displays and weather and aircraft monitoring.Type: GrantFiled: July 22, 1998Date of Patent: November 9, 2004Assignee: Silicon Graphics, Inc.Inventor: Daniel E. Evanicky
-
Patent number: 6756970Abstract: The invention provides a liquid crystal, TFT display with driver lines folded around a light pipe and a digitizer. The digitizer has grid routing lines folded around a shield where the shield is connected to a shield of the computer system electronics. The display drivers and grid controller are mounted inward of an edge of the display. The glass layers surrounding the beads can have different thicknesses and composition while the liquid crystal surrounding the beads can be at a pressure less than atmospheric pressure. A surface of the display provides pen/pencil on paper feel as a digitizer pen is moved across the surface via hardness coatings and surface topography.Type: GrantFiled: November 20, 1998Date of Patent: June 29, 2004Assignee: Microsoft CorporationInventors: Leroy Bertrand Keely, Jr., Daniel E. Evanicky, Charles Ford Alexander
-
Publication number: 20040036708Abstract: A system and method are described herein for controlling the white balance and providing gamma correction without compromising gray-scale dynamic range in a flat panel liquid crystal display (LCD). According to one embodiment of the present invention, the flat panel LCD includes electronic circuitry for coupling to a host computer to receive a white-balance adjustment control signal, and electronic circuitry for receiving image data to be rendered on the flat panel LCD. Further, the flat panel LCD of one embodiment is configured for coupling to a color-sensing device to receive optical characteristics data of the flat panel LCD detected by the color-sensing device. The white balance adjustment mechanisms include the provision of two or more light sources of differing color temperature, whose brightness can be independently varied (and distributed through a light distribution mechanism) to adjust color temperature without altering the grayscale resolution of the RGB colors.Type: ApplicationFiled: August 25, 2003Publication date: February 26, 2004Inventors: Daniel E. Evanicky, Oscar Ivan Medina
-
Patent number: 6657607Abstract: Brightness in the LCD is enhanced by polarization recycling using a pre-polarizing film to pre-polarize light, and a special reflector for recycling light reflected by the pre-polarizing film. In one embodiment, the pre-polarizing film comprises a layer of DBEF brightness enhancement film, and the rear reflector is made of a PTFF material. In another embodiment, the rear reflector is covered with a film comprising barium sulfate. The multiple light sources are selected such that, at any color temperature within a predetermined range, the brightness of the LCD is not reduced below a given threshold minimum (e.g., 70 percent of the maximum brightness). Another constraint for selecting the light sources is that within the predetermined color temperature range, the color temperature is held close to the black body curve of the CIE chromaticity diagram. The light sources are also selected so that their maximum brightness point is set to be near the middle of the predetermined color temperature range.Type: GrantFiled: March 19, 2001Date of Patent: December 2, 2003Assignee: Silicon Graphics, Inc.Inventors: Daniel E. Evanicky, Sun Lu
-
Patent number: 6611249Abstract: A system and method are described herein for controlling the white balance and providing gamma correction without compromising gray-scale dynamic range in a flat panel liquid crystal display (LCD). According to one embodiment of the present invention, the flat panel LCD includes electronic circuitry for coupling to a host computer to receive a white-balance adjustment control signal, and electronic circuitry for receiving image data to be rendered on the flat panel LCD. Further, the flat panel LCD of one embodiment is configured for coupling to a color-sensing device to receive optical characteristics data of the flat panel LCD detected by the color-sensing device. The white balance adjustment mechanisms include the provision of two or more light sources of differing color temperature, whose brightness can be independently varied (and distributed through a light distribution mechanism) to adjust color temperature without altering the grayscale resolution of the RGB colors.Type: GrantFiled: July 22, 1998Date of Patent: August 26, 2003Assignee: Silicon Graphics, Inc.Inventors: Daniel E. Evanicky, Oscar Ivan Medina
-
Patent number: 6559826Abstract: A method and system for updating the colorimetric characteristics of a flat panel display over the display's entire lifetime. An advantage of the present invention is that the useful life and the color accuracy of a flat panel display can be extended. In one embodiment of the invention, an initial set of luminance data of a flat panel monitor is programmed into addressable memory locations within that monitor. Thereafter, the luminance output of the lamps of the flat panel monitor is tracked with luminance or colorimetric measuring devices. According to the present invention, the luminance data are used in determining the correlation between voltage settings of the lamps and the color characteristics of the display such as color temperature. By measuring the luminance of the display periodically, a precise and accurate color profile of the flat panel display can be maintained.Type: GrantFiled: February 10, 2000Date of Patent: May 6, 2003Assignee: Silicon Graphics, Inc.Inventors: Jonathan Mendelson, Daniel E. Evanicky
-
Patent number: 6535190Abstract: A system for color balancing within a liquid crystal flat panel display unit. The present invention includes a method and system for altering the brightness of two or more light sources, having differing color temperatures, thereby providing color balancing of a liquid crystal display (LCD) unit within a given color temperature range. The embodiments operate for both edge and backlighting systems. In an embodiment, two planar light pipes are positioned, a first over a second, with an air gap between. The first light pipe is optically coupled to receive light from a first light source having a color temperature above the predetermined range and the second light pipe is optically coupled to receive light from a second light source having a color temperature below the predetermined range.Type: GrantFiled: December 13, 2001Date of Patent: March 18, 2003Assignee: Silicon Graphics, Inc.Inventor: Daniel E. Evanicky
-
Publication number: 20020163529Abstract: A system for color balancing within a liquid crystal flat panel display unit. The present invention includes a method and system for altering the brightness of two or more light sources, having differing color temperatures, thereby providing color balancing of a liquid crystal display (LCD) unit within a given color temperature range. The embodiments operate for both edge and backlighting systems. In an embodiment, two planar light pipes are positioned, a first over a second, with an air gap between. The first light pipe is optically coupled to receive light from a first light source having a color temperature above the predetermined range and the second light pipe is optically coupled to receive light from a second light source having a color temperature below the predetermined range.Type: ApplicationFiled: December 13, 2001Publication date: November 7, 2002Applicant: SILICON GRAPHICS, INC.Inventor: Daniel E. Evanicky
-
Patent number: 6448955Abstract: A multiple light source flat panel liquid crystal display (LCD) system having enhanced backlight brightness and specially selected light sources. According to the present invention, brightness in the LCD is enhanced by polarization recycling using a pre-polarizing film to pre-polarize light, and a special reflector for recycling light reflected by the pre-polarizing film. In one embodiment, the pre-polarizing film comprises a layer of DBEF brightness enhancement film, and the rear reflector is made of a PTFF material. In another embodiment, the rear reflector is covered with a film comprising barium sulfate. The multiple light sources are selected such that, at any color temperature within a predetermined range, the brightness of the LCD is not reduced below a given threshold minimum (e.g., 70 percent of the maximum brightness).Type: GrantFiled: June 8, 2000Date of Patent: September 10, 2002Assignee: Silicon Graphics, Inc.Inventors: Daniel E. Evanicky, Sun Lu
-
Publication number: 20020063694Abstract: The invention provides a liquid crystal, TFT display with driver lines folded around a light pipe and a digitizer. The digitizer has grid routing lines folded around a shield where the shield is connected to a shield of the computer system electronics. The display drivers and grid controller are mounted inward of an edge of the display. The glass layers surrounding the beads can have different thicknesses and composition while the liquid crystal surrounding the beads can be at a pressure less than atmospheric pressure. A surface of the display provides pen/pencil on paper feel as a digitizer pen is moved across the surface via hardness coatings and surface topography.Type: ApplicationFiled: November 20, 1998Publication date: May 30, 2002Inventors: LEROY BERTRAND KEELY, JR., DANIEL E. EVANICKY, CHARLES FORD ALEXANDER
-
Patent number: 6366270Abstract: A system for color balancing within a liquid crystal flat panel display unit. The present invention includes a method and system for altering the brightness of two or more light sources, having differing color temperatures, thereby providing color balancing of a liquid crystal display (LCD) unit within a given color temperature range. The embodiments operate for both edge and backlighting systems. In an embodiment, two planar light pipes are positioned, a first over a second, with an air gap between. The first light pipe is optically coupled to receive light from a first light source having a color temperature above the predetermined range and the second light pipe is optically coupled to receive light from a second light source having a color temperature below the predetermined range.Type: GrantFiled: May 29, 1998Date of Patent: April 2, 2002Assignee: Silicon Graphics, Inc.Inventor: Daniel E. Evanicky
-
Patent number: 6359389Abstract: A flat panel display having a programmable gamma without incidental loss in gray scale resolution. In one embodiment, the flat panel display is a liquid crystal display (LCD). The invention includes applying and adjusting a set of gamma controlling voltages to the DC reference circuit (a.k.a. ladder voltages) of an LCD module producing a change in the gamma response (or profile) of the LCD module without incidental loss of gray scale resolution. An adjustable ladder circuit (ALC) is thereby realized. Separate ALCs can be provided for red, green and blue primaries. By adjusting, in a predetermined fashion, the reference voltages applied to the row and column drivers of an LCD display, the gamma response of the LCD can be changed to a different value. Because the input digital signals are not affected, the same color resolution and dynamic range are maintained. The DC reference circuit can be a multi-node voltage divider.Type: GrantFiled: June 9, 2000Date of Patent: March 19, 2002Assignee: Silicon Graphics, Inc.Inventors: Oscar I. Medina, Jonathan D. Mendelson, Daniel E. Evanicky
-
Patent number: 6243068Abstract: A multiple light source flat panel liquid crystal display (LCD) system having enhanced backlight brightness and specially selected light sources. According to the present invention, brightness in the LCD is enhanced by polarization recycling using a pre-polarizing film to pre-polarize light, and a special reflector for recycling light reflected by the pre-polarizing film. In one embodiment, the pre-polarizing film comprises a layer of DBEF brightness enhancement film, and the rear reflector is made of a PTFF material. In another embodiment, the rear reflector is covered with a film comprising barium sulfate. The multiple light sources are selected such that, at any color temperature within a predetermined range, the brightness of the LCD is not reduced below a given threshold minimum (e.g., 70 percent of the maximum brightness).Type: GrantFiled: May 29, 1998Date of Patent: June 5, 2001Assignee: Silicon Graphics, Inc.Inventors: Daniel E. Evanicky, Sun Lu
-
Patent number: 6144360Abstract: A light distributing removable door assembly (and elements thereof) for a back-lit flat panel display subsystem wherein the subsystem is for direct viewing as a monitor and having overhead projection capability. The removable door assembly provides for back-lighting via a light pipe for direct viewing when installed in the subassembly. When the door assembly is removed, the active matrix LCD is semi-transparent and can be placed over the imaging screen (viewing side down) of an overhead projector such that the LCD color image can be thus projected. The lamps that provide the back-lighting remain within the display subsystem when the door is removed and a unique optical coupling is provided between the lamps and a light pipe within the door. A specialized bi-directional light extraction pattern is used on a light pipe of the removable door to provide effective and uniform light distribution over the LCD image.Type: GrantFiled: April 1, 1998Date of Patent: November 7, 2000Assignee: Silicon Graphics, Inc.Inventors: Daniel E. Evanicky, Leroy Bertrand Keely, Steven Siefert
-
Patent number: 6061104Abstract: A display assembly that includes a flat panel display and a display stand. A hinge that attaches to the housing of the display provides for tilt adjustment. The display stand includes two rails that attach to a base and a sliding frame that is coupled to the hinge. The two rails support the sliding frame such that the sliding frame can move up and down along the two rails. A rotary dampener dampens downward movement of the sliding frame. The display stand also includes a latching mechanism that selectively latches the sliding frame to one of the rails. The latching mechanism includes a handle that can be manually operated so as to selectively engage and disengage the latching mechanism. Movement of the handle of the latching mechanism releases the latching mechanism. The display can then be moved up or down as desired to accommodate the needs of a particular user. Once the display is positioned as desired, the release of the handle operates to engage the latching mechanism.Type: GrantFiled: July 22, 1998Date of Patent: May 9, 2000Assignee: Silicon Graphics, Inc.Inventors: Daniel E. Evanicky, Thomas Mabry, Carl Engelbrecht