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Display device for both hardcopy and digital images
| Details |
Inventors: Giesberg, Daniel Jay; Lappen, David Irwin; Lappen, William Ascher;
Assignee: Buy-Phone, Inc. (Encino, CA)
Primary Examiner: Mahoney; Christopher
Assistant Examiner:
Attorney, Agent or Firm: Crosby, Heafey, Roach & May
A display device is provided which permits viewing of both hardcopy and digital images. An embodiment of an image viewing station comprises a housing having an internal light source and a light transmissive display panel coupled to the housing such that light from the internal light source passes therethrough. Hardcopy images affixed to an outer surface of the display panel may be transilluminated by the light passing through the display panel. Digital images may also be displayed on the display panel, by projecting the digital images onto either the inner or outer surface of the display panel. Alternatively, the panel could include a light emitting or light transmissive display panel, such as a liquid crystal display or an electroluminescent panel. Light emitted by the display panel may be sufficient to transilluminate a hardcopy image disposed on an outer surface of the display panel. A digital image is displayed on the same display panel by selectively driving the pixels of the display panel with digital image data. Alternatively, an internal light source may be included for transillumination of the hardcopy image or for improving backlighting of the digital images. The display panel may be selectively masked during hardcopy image viewing, and may further include sensors to detect presence, as well as size and position, of hardcopy images affixed to the display panel. |
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DETAILED DESCRIPTION The present invention overcomes the drawbacks of conventional image viewing systems by permitting both hardcopy and digital viewing in the same device.
In an embodiment of the invention, an image viewing station comprises a housing having an internal light source and a light transmissive display panel coupled to the housing such that light from the internal light source passes therethrough.
Hardcopy images affixed to an outer surface of the display panel may be transilluminated by the light passing through the display panel.
Digital images may also be displayed on the display panel, by projecting the digital images onto either the inner or outer surface of the display panel.
The display panel may be selectively masked during hardcopy image viewing, and may further include sensors to detect presence, as well as size and position, of hardcopy images affixed to the display panel.
In another embodiment of the invention, an image viewing station comprises a light emitting or light transmissive display panel, such as a liquid crystal display or an electroluminescent panel.
Light emitted by the display panel may be sufficient to transilluminate a hardcopy image disposed on an outer surface of the display panel.
A digital image is displayed on the same display panel by selectively driving the pixels of the display panel with digital image data.
Alternatively, an internal light source may be included for transillumination of the hardcopy image or for improving backlighting of the digital images.
As in the first embodiment, the display panel can be selectively masked around the hardcopy image, and can include sensors to detect presence, size and position of hardcopy images affixed thereto.
The benefits of this invention are numerous and varied.
First, as envisioned, for very little additional cost a "masked" transillumination element could be added to a digital display device.
Second, by allowing both hardcopy and digital images to be simultaneously displayed in the same device, a diagnostician can perform comparison studies of differing modalities easily and in close proximity
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Optical Systems 
