Abstract: Provided is a display device, which includes: a reference voltage line formed along a circular outer line and configured to provide a reference voltage; a first reference voltage auxiliary line electrically connected to the reference voltage line and formed to be parallel with a predetermined interval; and a conductive line forming a contact with the reference voltage line and the first reference voltage auxiliary line and configured to provide the reference voltage to a cathode.

Abstract: In one embodiment, the product pricing system in e-commerce using the internet, comprises a sale condition management module receiving a sale condition information entered from a seller that includes a lowest set price, a customer price and a prepared number of a product, wherein the lowest set price for a product is determined according to whole sale of the prepared number of a product; a purchase condition management module generating purchase group information by counting a purchased number for each bid price through a product bid price and a purchased number of a product entered from a customer; a status management module generating discount information according to a purchased number of a product based on the sale condition information, and generating varying price information by adding the discount information and the purchase group information; and a pricing module generating a pricing information by setting a price of the product, wherein the price of the product set at the value where the purchase gr