Flexible organic light emitting display device with encapsulation film and dam and method of fabricating the same
First Claim
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1. A flexible organic light emitting display (OLED) device, comprising:
- a flexible substrate comprising;
a display area;
a non-display area at a periphery of the display area;
a non-folding region; and
a folding region;
at least one organic emitting diode on the flexible substrate in the display area;
an encapsulation film covering the organic emitting diode; and
a dam on the flexible substrate, the dam laterally surrounding the display area and comprising;
a first dam in the folding region, and absent in the non-folding region; and
a second dam in the non-folding region, and absent in the folding region,wherein, in a direction perpendicular to a top surface of the flexible substrate, an average thickness of the first dam is smaller than the average thickness of the second dam,wherein the first dam and the second dam are disposed on a same layer, andwherein a lower surface of the first dam and a lower surface of the second dam have a same height from the flexible substrate in the perpendicular direction.
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Abstract
A flexible organic light emitting display (OLED) device includes a flexible substrate having a display area, a non-display area at a periphery of the display area and a folding region; at least one organic emitting diode on the flexible substrate in the display area; an encapsulation film covering the organic emitting diode; and a dam on the flexible substrate. The dam laterally surrounds the display area and includes: a first dam in the folding region; and a second dam outside the folding region, wherein the average thickness of the first dam is smaller than the average thickness of the second dam.
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Citations
20 Claims
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1. A flexible organic light emitting display (OLED) device, comprising:
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a flexible substrate comprising; a display area; a non-display area at a periphery of the display area; a non-folding region; and a folding region; at least one organic emitting diode on the flexible substrate in the display area; an encapsulation film covering the organic emitting diode; and a dam on the flexible substrate, the dam laterally surrounding the display area and comprising; a first dam in the folding region, and absent in the non-folding region; and a second dam in the non-folding region, and absent in the folding region, wherein, in a direction perpendicular to a top surface of the flexible substrate, an average thickness of the first dam is smaller than the average thickness of the second dam, wherein the first dam and the second dam are disposed on a same layer, and wherein a lower surface of the first dam and a lower surface of the second dam have a same height from the flexible substrate in the perpendicular direction. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13)
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14. A method of fabricating a flexible organic light emitting display device, comprising:
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providing a flexible substrate comprising; a display area; a non-display area at a periphery of the display area; a non-folding region; and a folding region; forming a dam surrounding the display area on the flexible substrate, the dam comprising; a first dam in the folding region, and absent in the non-folding region; and a second dam in the non-folding region, and absent in the folding region, an average thickness of the first dam being smaller than an average thickness of the second dam in a direction perpendicular to a top surface of the flexible substrate; forming an emitting diode within the display area; covering the display area and the non-display area with a first inorganic layer; and covering the display area with an organic layer, wherein a lower surface of the first dam and a lower surface of the second dam have a same height from the flexible substrate in the perpendicular direction. - View Dependent Claims (15, 16, 17, 18, 19, 20)
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Specification