09207851 is referenced by 1 patents and cites 28 patents.

A matrix of light emitting diodes is positioned behind a liquid crystal layer of a display device. The light emitting diodes operate in both light emitting and light detecting modes. Consequently, the display device is able to sense objects or fingers approaching or in contact with a front display surface of the display device based on changes in incident light on the matrix that are observed by one or more of the light emitting diodes operating in the light detecting mode.

Title
Sensing displays utilizing light emitting diodes
Application Number
13/12100
Publication Number
9207851 (B1)
Application Date
January 24, 2011
Publication Date
December 8, 2015
Inventor
Jefferson Y Han
Holliswood
NY, US
Agent
Micky Minhas
Judy Yee
Brandon Roper
Assignee
PERCEPTIVE PIXEL
WA, US
IPC
G06F 3/0488
G06F 3/042
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