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AssigneeFergason Patent Properties, LLC
InventorJames L. Fergason
Estimating the term…
A display apparatus includes a passive display, a light source, and a video signal input, in operation in response to a video signal the passive display modulates light from the light source to provide an image, and the intensity of the light source is controlled by the video signal. A method of producing a displayed image using a passive display illuminated by a light source is characterized in controlling the light source to obtain a displayed image with a desired amount of information, gray scale and/or color characteristics. A method of reducing power consumption by a display system in which a light modulating display modulates incident light from a light source to provide images is characterized in controlling power provided to the light source to reduce output thereof for relatively dark images.
A display system for a display device, comprising a light source providing light of respective colors to illuminate the display device, wherein the display device is capable of displaying a preset range of gray levels and presenting a displayed image in response to an input signal and a control operable to modify a range of gray levels represented in the input signal greater than the preset range of gray levels and to adjust the light source to provide independent intensity control in response to image brightness information in such input signal and corresponding to the modified range of gray levels, thereby displaying an image with a range of gray levels greater than the range of gray levels represented in the input signal.
A method for displaying an image on a display apparatus including a backlight, a passive display panel, and a control, the image having a natural illumination appearance and being represented by an input image signal, the method comprising:
A display system for a passive display device, comprising a light source providing light of respective colors to illuminate the passive display device, wherein the passive display device is capable of displaying a preset range of gray levels and presenting a displayed image in response to an input signal, and a control operable to increase a range of gray levels represented in the input signal up to the full preset range of gray levels and to adjust the light source to provide independent intensity control for the respective color components in response to image brightness information in such input signal and corresponding to the increased range of gray levels, thereby displaying an image with a range of gray levels greater than the range of gray levels represented in the input signal.
Dependencies are inferred from the claim text.