Organic light emitting display apparatus

An organic light emitting display device comprising:

• a first substrate;
• a second substrate opposing the first substrate and comprising a first surface facing the first substrate;
• an array of organic light emitting pixels interposed between the first substrate and the second substrate, wherein the array comprises a first pixel configured to emit visible light;
• a black matrix layer formed on the first surface, wherein the black matrix provides a plurality of openings comprising a first opening configured to pass visible light therethrough, wherein the first opening is aligned with the first pixel such that visible light from the first pixel can pass through the first opening;
• wherein the first opening comprises a first edge and a second edge, both of which extend generally in a first direction parallel to the first surface;
• wherein the first pixel comprises a first edge and a second edge, both of which extend generally in the first direction, wherein the first edge of the first pixel is closer to the first edge of the first opening than the second edge of the first opening;
• wherein the first edge of the first opening is located between the first and second edges of the first pixel when viewed from a direction perpendicular to the first surface;
• wherein L is an imaginary straight line passing the first edge of the first pixel and the second edge of the first opening in an imaginary plane perpendicular to the first direction;
• and
• wherein the imaginary line L and the first surface form an acute angle which is greater than about 30°.

An organic light emitting display device comprising:

• a first substrate;
• a second substrate opposing the first substrate and comprising a first surface facing the first substrate;
• an array of organic light emitting pixels interposed between the first substrate and the second substrate, wherein the array comprises a first pixel configured to emit visible light;
• a black matrix layer formed on the first surface, wherein the black matrix provides a plurality of openings comprising a first opening configured to pass visible light therethrough, wherein the first opening is aligned with the first pixel such that visible light from the first pixel can pass through the first opening;
• wherein the first opening comprises a first edge and a second edge, both of which extend generally in a first direction parallel to the first surface;
• wherein the first pixel comprises a first edge and a second edge, both of which extend generally in the first direction, wherein the first edge of the first pixel is closer to the first edge of the first opening than the second edge of the first opening;
• wherein the first edge of the first opening is located between the first and second edges of the first pixel when viewed from a direction perpendicular to the first surface wherein the first pixel and the first opening are arranged so as to satisfy the following relationship:
• t2≦a−b≦√{square root over (3)}×t2;
• wherein a−b is the distance between the first edge of the first opening and the second edge of the first pixel measured in a second direction perpendicular to the first direction and parallel to the first surface;
• and
• wherein t2 is the distance between the first surface and a top surface of the pixel in a third direction perpendicular to the first and second directions, wherein the top surface faces the first surface.