Tynax ~ Patent Library

Patent for Sale:

3D Graphics & Display    

3D LCD display viewed with or without passive glasses for video, gaming, TVs etc.


One set of inventions relate to a family of auto-stereoscopic 3D image processing patents (and copyright software) that describe stereoscopic image processing without the use of vision aids, such as parallax barrier or polarizer glasses. Unlike prior art, which uses a pair of screens to display a right & left stereographic image pair or aspect (stereo pair), these inventions display a computed image that is a derivative of the stereo pair images which interact in producing the composite stereo image to be viewed with the naked eye.

A second set of inventions relate to stereoscopic image processing that requires passive circular polarized glasses and dual panel 3D displays for viewing still picture, video, gaming, TVs etc. The stereo images are produced simultaneously by two LCD panels in the display that are polarized in orthogonal fashion to permit segregation by eyeglasses having lens with orthogonally different polarization characteristics. The two LCD panels in the display are stacked one in front of the other relative to a CCFL or LED back-light and two polarizers surround the panel closest to the back-light. The computed image in each panel acts as a mask for the other panel. Panel illumination can also be controlled. Additionally, different stereo-pair images can be presented to the viewer based upon sensing the viewer position. A spatial mask, such as a diffuser, can be placed between displays to suppress Moire patterns.

The seller may consider selling these patents individually.

Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 349: Liquid Crystal Cells, Elements And Systems

Cells, elements, and systems which include molecules of a material having both liquid and crystalline properties. Included in this class are those which have a significant liquid crystal cell detail or liquid crystal response or properties, and in which the liquid crystal controls or changes the optical properties of electromagnetic radiation such as direction, phase, amplitude, frequency, or polarization state. This class also provides for nominal manufacturing methods for producing significant liquid crystal cell structure.

Subclass 62: With integral optical element for guiding or distributing light from the light source
Subclass 65: Edge lit type light guide behind liquid crystal
Subclass 68: With plural diverse light sources (e.g., for day and night)

Class 359: Optical: Systems And Elements

Optical elements included in this class are: Lenses; Polarizers; Diffraction gratings; Prisms; Reflectors; Filters; Projection screens; Optical Modulators; Optical Demodulators. Among the optical systems included in this class are: Compound lens systems; Light reflecting signalling systems (e.g., retroreflectors); stereoscopic systems; Binocular devices; Systems of lenticular elements; Systems involving light interference; Glare reducing systems; Light dividing and combining systems; Light control systems (e.g., light valves); building illumination with natural light; Systems for protecting or shielding elements; Optical systems whose operation depends upon polarizing, diffracting, dispersing, reflecting, or refracting light; kaleidoscopes. Further included are certain apertures, closures, and viewing devices of a specialized nature which involve no intentional reflection, refraction, or filtering of light rays. This class also includes optical elements combined with another type of structure(s) to constitute an optical element combined with a nonoptical structure or a perfection or improvement in the optical element.

Subclass 15: Using a hologram as an optical element
Subclass 449: With reflector or additional screen
Subclass 460: Rear projection screen
Subclass 462: STEREOSCOPIC

Class 348: Television

Generating, processing, transmitting or transiently displaying a sequence of images, either locally or remotely, in which the local light variations composing the images may change with time.

Subclass E13.029: Using a lenticular screen (EPO)
Subclass E13.03: Using a parallax barrier, e.g., spatial light modulator (EPO)
Subclass E13.038: With polarization multiplexing, i.e., simultaneously displaying left and right images separated using glasses with different polarizing characteristics (EPO)
Subclass E13.04: With temporal multiplexing, i.e., alternatively displaying left and right images separated in time and using glasses to alternatively block the right and left eye (EPO)
Subclass E13.045: Using observer tracking (EPO)
Subclass E13.046: For several observers (EPO)
Subclass E13.049: For tracking forward-backward translational head movements, i.e., longitudinal movements (EPO)
Subclass E13.05: For tracking left-right translational head movements, i.e., lateral movements (EPO)
Subclass E13.057: With depth sampling, i.e., the volume being constructed from a stack or sequence of 2D image planes (EPO)
Subclass E13.059: Synchronization or controlling aspects (EPO)
Subclass E13.066: The virtual viewpoint location being selected by the observer, e.g., observer tracking with look around effect (EPO)

Class 353: Optics: Image Projectors

Projectors for particular types of objects to be projected; such as maps and aerial photographs, targets, transparent plates, information data, microscopic objects, scales and indicators, and stencils or perforated plates. Various other species and types of projectors are also included here such as kaleidoscopic, heliostats, stereoscopic and relief, pointers, gun type, moving images on screens, episcopes and cabinets including screens. Various plural and composite types of projectors are included such as projectors involving plural projected images including multicolor, projectors for images combined with real objects, projectors with manual delineation, and plural projection with a single light source. Projectors selective at the operators choice are also included as where the selection is between a slide and a film strip, between a cabinet and a distant screen, and between opaque and transparency projection.


Class 345: Computer Graphics Processing And Selective Visual Display Systems

Processes and apparatus for selective electrical control of two or more light-generating or light-controlling display elements* in accordance with a received or stored image data signal. The image data includes character, graphical information or display attribute data. The image data may include, for example, information data from a peripheral input device, from the reception of a television signal, from the recognition of image data, or from the generation or creation of image data by a computer.

Subclass 6: Three-dimensional arrays