Patent ID: 9570708
Date: 2017-02-14
CPC Classifications: H01L

Claim:
1. An organic light emitting display, comprising: a back plane including an active area on which an image is displayed, and a bezel area outside the active area; a pixel array on the active area and configured to display the image; an encapsulation plate encapsulating the pixel array; a transparent adhesive film free of moisture absorption fillers formed on the active area and disposed between the encapsulation plate and the back plane; a dam including a sealant with moisture absorption fillers formed in the bezel area and adjoining the adhesive layer so as to limit moisture from penetrating into the pixel array; and a first passivation layer disposed in both the active area and the bezel area, wherein the sealant uniformly extends from an inner edge adjoining the adhesive layer to an outer edge of the sealant, wherein the first passivation layer is disposed under the sealant within the bezel area and terminates before the outer edge of the sealant, wherein the first passivation layer is disposed between the pixel array and the encapsulation plate within the active area and contacts the back plane in both the active area and the bezel area, wherein the moisture absorption fillers are in the form of small size particles and uniformly distributed in the sealant, wherein the dam further includes at least two dam banks formed at positions contacting both edges of the sealant in the encapsulation plate and configured to limit a diffusion of the sealant, and one of the at least two dam banks is disposed directly between the sealant and the adhesive layer and between the first passivation layer and the encapsulation plate, and wherein the one of the at least two dam banks does not contact the first passivation layer.