US 11,681,396 B2
Optical input diodes
Nicholas Brian Hansen, Fayetteville, GA (US)
Assigned to Panasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America, Peachtree City, GA (US)
Filed by Panasonic Automotive Systems Company of America, Division of Panasonic Corporation of North America, Peachtree City, GA (US)
Filed on Dec. 14, 2021, as Appl. No. 17/549,927.
Claims priority of provisional application 63/132,730, filed on Dec. 31, 2020.
Prior Publication US 2022/0206601 A1, Jun. 30, 2022
Int. Cl. G09G 3/36 (2006.01); G06F 3/042 (2006.01); G02F 1/13357 (2006.01); G06F 3/033 (2013.01)
CPC G06F 3/042 (2013.01) [G02F 1/133615 (2013.01); G02F 1/133617 (2013.01); G06F 3/033 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A liquid crystal display (LCD) backlight device comprising:
a processor;
a color filter of a pixel comprising at least one of a red filter, a green filter, or a blue filter; and
a diode to emit light through the color filter in response to being driven by the processor, the diode to generate a voltage in response to light passing through the color filter and arriving on the diode, where an image value is calculated as a function of the voltage generated and a color filter value of the color filter.