Flat panel display device and method of making the same
AssigneeSamsung Mobile Display Co., Ltd.
InventorWon Kyu Kwak
Life of this patent
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Abstract
A display device includes a first substrate dividing into a pixel region including a pixel and a non-pixel region other than the pixel region, a second substrate opposed to a predetermined region including the pixel region on the first substrate, and a frit seal formed between the first substrate and the second substrate to encapsulate the first substrate and the second substrate. On the non-pixel region of the first substrate, a buffer layer is formed. An insulating film is formed on the buffer layer and a predetermined region of the insulating layer is etched. A portion of a first metal film is exposed by etching. A second metal film is formed to overlap the exposed portion of the first metal film. A protective film is formed on the insulating film and the second metal film.
Claims21
A method of making a display device, the method comprising:
- providing a first substrate and a structure formed on the first substrate, the structure comprising a first insulating layer, a second insulating layer and a first conductive line buried between the first and second insulating layers, the first conductive line generally extending in a first direction and comprising a first portion, the first conductive line having a width in the first portion thereof, the width being measured in a second direction perpendicular to the first direction;
- selectively etching a portion of the structure so as to expose the first portion of the conductive line, the etched portion of the structure having a width measured in the second direction, wherein the width of the etched portion is greater than the width of the first conductive line in the first portion;
- forming a second conductive line generally extending in the first direction and comprising a second portion in contact with the first portion of the first conductive line;
- forming a protective layer over the second conductive line and a non-etched portion of the second insulating layer;
- arranging a second substrate so as to oppose the first substrate;
- interposing a frit between the protective layer and second substrate;
- and
- wherein the frit overlaps with the second portion of the second conductive line when viewed in a third direction from the first substrate, wherein the third direction is perpendicular to the first and second directions.
A display device comprising:
- a first substrate;
- a second substrate opposing the first substrate;
- a frit seal interposed between the first substrate and the second substrate;
- a conductive line generally extending in a first direction and comprising a first portion which is interposed between the first substrate and the frit seal, wherein the conductive line has an width in the first portion thereof measured in a second direction, the second direction being perpendicular to the first direction, wherein the frit seal overlaps with the first portion when viewed in a third direction from the first substrate, the third direction being perpendicular to the first and second directions, wherein the first portion comprises a first layer and a second layer formed on the first layer;
- and
- a protective layer comprising a first portion and a second portion, wherein the first portion of the protective layer is interposed between the frit seal and the first portion of the conductive line, wherein the second portion of the protective layer is interposed between the frit seal and the first substrate while not interposed between the frit seal and the first portion of the conductive line, wherein the protective layer comprises a first surface in the first portion thereof, the first surface facing the second substrate, wherein the protective layer comprises a second surface in the second portion thereof, the second surface facing the second substrate, wherein the protective layer has a first thickness in the first portions thereof, and wherein a distance between the first surface and the second surface in the third direction is equal to or less than about the first thickness.
Dependencies are inferred from the claim text.