The present invention relates to a display device, and more particularly, to a display section having a touch panel built in an organic EL display device.
Touching the surface of the display device with the user's finger has become common input process for the display device of the smart phone or the tablet. Generally, the touch panel is disposed on the display region. The liquid crystal display panel with built-in touch panel function has been developed for adaption to the liquid crystal display device.
Japanese Unexamined Patent Application Publication No. 2016-1233 discloses the liquid crystal display panel with built-in touch panel function. The disclosed liquid crystal display panel is configured to dispose one of electrodes of the touch panel at the outer side of the counter substrate, and to allow the common electrode inside the liquid crystal display panel to be used as the other electrode of the touch panel.