Patent ID: 8072568

Claim:
A display panel comprising: a first substrate made of glass; a second substrate opposed to the first substrate; a display medium layer provided between the first substrate and the second substrate; and a sealant arranged between the first substrate and the second substrate to surround the display medium layer, join the first substrate and the second substrate and seal the display medium layer; wherein the first substrate includes: at a side of the display medium layer, at least one mark located at a periphery of the display panel and outside of the sealant; a plurality of pixel electrodes made of transparent conductive oxide; and an electrode line made of a metal material; wherein the at least one mark includes a mark having a side disposed to extend along an edge of at least one of the first substrate and the second substrate, when viewed in plan; and the at least one mark is defined by a thinnest one of a plurality of conductive films included in the first substrate.