Patent ID: 7411574

Claim:
A tablet liquid crystal display device comprising: a liquid crystal panel for displaying an image, including a black matrix formed in a lattice form; and a signal recognizing section for generating an electromotive force according to a light signal inputted from an exterior, wherein the signal recognizing section comprises: a plurality of first photoelectromotive force generation layers, each of which is located above the black matrix in a sectional view, is overlapped with the black matrix in a plan view, and extends in a first direction; an insulating layer deposited to cover at least an upper surface of the first electromotive force generation layers; a plurality of second photoelectromotive force generation layers, each of which is located above the black matrix in a sectional view, is overlapped with the black matrix in a plan view, and extends in a second direction perpendicular to the first direction; and a protection layer deposited over an entire area of the signal recognizing section.