Organic light emitting display device having connection lines passing through a bending region
An organic light emitting display device that includes a substrate that may be flexible, and an insulation layer arranged on the substrate. The insulation layer is perforated by openings to facilitate bending of the display device. A plurality of the connection lines extend from the image producing display area to a peripheral area of the display device to allow for connection to an external device. Each of the openings includes one of the connection lines to prevent shorting together of the connection hues during the patterning step used to pattern the connection lines. In one embodiment, the each of the connection lines extends through the openings and across the sidewalls of the openings. In another embodiment, the connection lines are interposed between two adjacent openings.
1. An organic light emitting display (OLED) device, comprising:
a substrate including a first region spaced apart from a second region by a third region;
a plurality of pixel structures arranged within the first region on the substrate;
an insulation layer arranged within the first through third regions, the insulation layer having a plurality of openings within the third region, each opening extends in a first direction and is spaced-apart from one another in a second direction, the first and second directions being parallel to the substrate and the second direction being perpendicular to the first direction; and
a plurality of connection lines extending in the first direction on the substrate within the first, second and third regions, wherein portions of the connection lines within the first and the second regions are arranged on the insulation layer, wherein portions of the connection lines within the third region are spaced-apart from the openings and are interposed between two adjacent openings, the connection lines electrically connecting the pixel structures to an external device,
wherein a bottom surface of each of the connection lines is in direct contact with an upper surface of the insulation layer along an entire length of the connection line in the first direction.
2. The OLED device of claim 1 , wherein the openings within the insulation layer include first through (N)th openings, where N is an integer greater than 1, and the connection lines include first through (M)th connection lines, where M is an integer greater than 1,
wherein the insulation layer within the third region is spatially separated by the openings, and
wherein a (L)th connection line among the first through (M)th connection lines is interposed between (K)th and (K+1)th openings among the first through (N)th openings on the insulation layer, where K is an integer between 1 and N, and L is an integer between 1 and M.
3. The display device of claim 2 , further comprising:
a planarization layer arranged on the connection lines, the planarization layer including a first via hole within the second region that exposes one of the connection lines; and
a pad electrode arranged within the second region, the pad electrode being in contact with the connection line through the first via hole of the planarization layer.