Patent ID: 8933911
Filing Date: 2015-01-13
Classification: G06F

Abstract:
1. A touch panel integrated display device comprising: a display panel comprising first and second substrates facing each other and a plurality of pixels disposed between the first and second substrates, to display an image; a touch panel formed on a peripheral area of a top most surface of the display panel and supported by the first substrate, to sense a touch generated on the top most surface of the display panel, wherein the touch panel comprises, a plurality of light sources formed at all edges of the peripheral area, at least one of the plurality of light sources arranged at each edge of the peripheral area, respectively, each light source emitting light towards an opposite edge of the peripheral area; a plurality of sensors formed at the all edges of the peripheral area and spaced apart from the plurality of light sources in a vertical direction, two or more sensors of the plurality of sensors being spaced apart from each other with an identical distance at the each edge of the peripheral area, wherein each sensor collects light which is emitted from one of the plurality of light sources formed at the opposite edge of the peripheral area; a waveguide formed at the all edges of the peripheral area and comprising a plurality of cores connected with the plurality of the sensors and a cladding surrounding the plurality of the cores, with a lower refractive index than the plurality of the cores; a flexible printed circuit formed along an inner surface of the waveguide, supplying each driving voltage to the plurality of light sources and the plurality of sensors; and a sensor controller connected with the plurality of the sensors via the plurality of cores, to sense whether each of the sensors collects light and to calculate a coordinate of the touch.