Patent ID: 7972442

Claim:
A photoplate for manufacturing a deposition mask that is used to form a matrix of pixel areas used in a display panel, the photoplate comprising: a layer of photoplate material; and a plurality of pixel etching areas defined on the layer of photoplate material, the plurality of pixel etching areas being configured to form pixel areas having a specified separation between adjacent, sequential ones of the plurality of pixel etching areas extending in a vertical direction, said pixel etching areas including an outer periphery having a generally rectangular shape with elongated corners, wherein each elongated corner has an extent of elongation and extends from the outer periphery to terminate distally in an elongated corner end portion, wherein the extent of elongation from the outer periphery to the elongated corner end portion is approximately one half the specified separation in the vertical direction, wherein the extent of elongation from the outer periphery to the elongated corner end portion in the horizontal direction is approximately one half the specified separation and wherein respective ones of the elongated corner end portions of the adjacent, sequential ones of the plurality of pixel etching areas on the photoplate touch each other.