Organic electro luminescent display and method for fabricating the same
First Claim
1. An organic electro luminescent display, comprising:
- a lower insulating substrate on which TFTs and light emitting elements are formed;
an upper substrate attached to the lower insulating substrate;
an encapsulating junction region adapted to encapsulate and attach the upper substrate to the lower insulating substrate via a sealant; and
a reflecting plate arranged only in the encapsulating junction region at any one an inner side of any one of the upper substrate and the lower insulating substrate, the reflecting plate being arranged between the inner side and the sealant.
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Abstract
An organic electro luminescent display with auxiliary layers on a cathode contact and an encapsulating junction region to easily remove polymer organic layers of the junction and a method for fabricating the same. The organic electro luminescent display has the first electrode formed on a lower insulating substrate, a pixel defining layer formed to make some portions of the first electrode opened over the entire surface of the lower insulating substrate, an organic emission layer formed on an opening of the first electrode, the second electrode formed on the organic emission layer, an upper substrate for encapsulating the first electrode, the organic emission layer and the second electrode, and auxiliary layers formed on the cathode contact and the encapsulating junction region of the lower insulating substrate.
29 Citations
54 Claims
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1. An organic electro luminescent display, comprising:
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a lower insulating substrate on which TFTs and light emitting elements are formed; an upper substrate attached to the lower insulating substrate; an encapsulating junction region adapted to encapsulate and attach the upper substrate to the lower insulating substrate via a sealant; and a reflecting plate arranged only in the encapsulating junction region at any one an inner side of any one of the upper substrate and the lower insulating substrate, the reflecting plate being arranged between the inner side and the sealant. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. An organic electro luminescent display, comprising:
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a lower insulating substrate on which a pixel portion is arranged; an upper substrate arranged over the lower insulating substrate; and a sealing material arranged between the upper substrate and the lower insulating substrate and adapted to seal the upper substrate to the lower insulating substrate, wherein a metal layer is arranged between the lower insulating substrate and the sealing material, wherein the sealing material is formed along the peripheries of the substrates and not in the pixel portion of the display, and wherein the metal layer is formed coextensively along with the sealing material and is of the shape of a closed polygon. - View Dependent Claims (11, 12, 13, 19, 20, 21)
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14. An organic electro luminescent display, comprising:
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a lower insulating substrate on which a pixel portion is formed; an upper substrate arranged on the lower insulating substrate; and a sealing material arranged between the upper substrate and the lower insulating substrate, the sealing material being adapted to attach the upper substrate to the lower insulating substrate, the sealing material being arranged along peripheries of the substrates and outside of the pixel portion; and a reflecting plate arranged between the lower insulating substrate and the sealing material, wherein the reflecting plate is arranged to be coextensive with the sealing material and is in the shape of a closed polygon. - View Dependent Claims (15, 16, 17, 18)
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22. An organic electro luminescent display, comprising:
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a lower insulating substrate on which a pixel portion is arranged, the pixel portion comprising a plurality of light emitting elements; an upper substrate arranged over the lower insulating substrate; and a sealing material arranged between the upper substrate and the lower insulating substrate and adapted to seal the upper substrate to the lower insulating substrate, wherein a metal layer is arranged between the lower insulating substrate and the sealing material, wherein the sealing material is formed along the peripheries of the substrates and not in the pixel portion of the display, and wherein the metal layer is formed coextensively along with the sealing material and is formed discontinuously in separate unconnected pieces around a perimeter of the display along the shape of a closed polygon. - View Dependent Claims (23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38)
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39. An organic electro luminescent display, comprising:
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a lower insulating substrate on which a pixel portion is arranged, the pixel portion comprising a plurality of thin film transistors, each of the thin film transistors comprising an active layer, a gate electrode, a drain electrode, and a source electrode; an upper substrate arranged over the lower insulating substrate; and a sealing material arranged between the upper substrate and the lower insulating substrate and adapted to seal the upper substrate to the lower insulating substrate, wherein a metal layer is arranged between the lower insulating substrate and the sealing material, wherein the sealing material is formed along the peripheries of the substrates and not in the pixel portion of the display, and wherein the metal layer is formed coextensively along with the sealing material and is formed discontinuously of separate unconnected pieces around a perimeter of the display along the shape of a closed polygon. - View Dependent Claims (40, 41, 42, 43, 44, 45, 46, 47, 48, 49, 50, 51)
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52. An organic electro luminescent display, comprising:
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a lower insulating substrate on which a pixel portion is arranged; an upper substrate arranged over the lower insulating substrate; and a sealing material arranged between the upper substrate and the lower insulating substrate and adapted to seal the upper substrate to the lower insulating substrate, wherein a metal layer is arranged between the lower insulating substrate and the sealing material, the metal layer not being configured to conduct electricity, wherein the sealing material is formed along the peripheries of the substrates and not in the pixel portion of the display, wherein the metal layer is formed coextensively along with the sealing material and is formed discontinuously in separate unconnected pieces around a perimeter of the display along the shape of a closed polygon, and wherein the metal layer has unconnected portions at corners of the shape of the closed polygon.
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53. An organic electro luminescent display, comprising:
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a lower insulating substrate on which a pixel portion is arranged; an upper substrate arranged over the lower insulating substrate; and a sealing material arranged between the upper substrate and the lower insulating substrate and adapted to seal the upper substrate to the lower insulating substrate, wherein a metal layer is arranged between the lower insulating substrate and the sealing material, wherein the sealing material is formed along the peripheries of the substrates and not in the pixel portion of the display, wherein the metal layer is formed coextensively along with the sealing material and is formed discontinuously of separate unconnected pieces around a perimeter of the display along the shape of a closed polygon, the closed polygon having a rectangular shape, and wherein the metal layer does not serve to conduct electricity.
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54. An organic electro luminescent display, comprising:
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a lower insulating substrate on which a pixel portion is arranged; a thin film transistor including an active layer, a gate electrode, a drain electrode and a source electrode disposed on the lower insulating substrate in the pixel portion; an anode formed on the lower insulating substrate; an organic layer formed on the anode; a cathode formed on the organic layer; an upper substrate arranged over the cathode; and a sealing material arranged between the upper substrate and the lower insulating substrate and adapted to seal the upper substrate to the lower insulating substrate, wherein a metal layer is arranged between the lower insulating substrate and the sealing material, wherein the sealing material is formed along the peripheries of the substrates and not in the pixel portion of the display, wherein the metal layer is formed coextensively along with the sealing material and is of the shape of a closed polygon, wherein the metal layer is formed in unconnected pieces around a perimeter of the display and along the sealing material, wherein the metal layer is formed of the same material and same layer as at least one of the gate electrode, the drain electrode and the source electrode, wherein the organic layer has a multi-layered structure made up of an emission layer (EML), and at least one of a hole injection layer (HIL), a hole transporting layer (HTL), an electron transporting layer (ETL), and an electron injection layer (EIL), and wherein the sealing material comprises light-cured material.
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Specification