Flexible OLED display panel and encapsulation method thereof
First Claim
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1. A flexible OLED display panel, comprising:
- a flexible substrate;
an OLED display layer formed on a surface of the flexible substrate; and
an encapsulation structure formed on the flexible substrate, covering the OLED display layer and configured to prevent permeation of moisture into the OLED display layer;
wherein the encapsulation structure includes;
a first inorganic thin film formed on a surface of the OLED display layer and a surrounding region of the surface;
a first organic thin film formed on a surface of the first inorganic thin film; and
a plurality of dams arranged on the surface of the flexible substrate and disposed at ends of the first inorganic thin film;
a second inorganic thin film formed on the flexible substrate and covering the first organic thin film and the dams;
a second organic thin film formed on a surface of the second inorganic thin film;
a third inorganic thin film formed on a surface of the second organic thin film;
wherein each of the dams includes a first sub-dam close to the first inorganic thin film and a second sub-dam away from the first inorganic thin film, a gap is formed between the first sub-dam and the second sub-dam which are located at a same end of the first inorganic thin film, and the gap is filled with waterproof material; and
a space is reserved between an edge of the first organic thin film and the first sub-dam to connect the first inorganic thin film and the second inorganic thin film;
the space is filled with a first inorganic material layer made of the same material as the first inorganic thin film and the second inorganic thin film;
wherein a sum of a film thickness of the first inorganic thin film and a film thickness of the first organic thin film is greater than a height of the dams.
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Abstract
A flexible OLED display panel is disclosed and includes an encapsulation structure. The encapsulation structure includes: a first inorganic thin film formed on a surface of an OLED display layer and a surrounding region of the surface; a first organic thin film formed on a surface of the first inorganic thin film; and a plurality of dams. Each of the dams has a first sub-dam close to the first inorganic thin film and a second sub-dam away from the first inorganic thin film. A gap is formed between the first sub-dam and the second sub-dam which are located at a same side. The gap is filled with desiccant.
8 Citations
10 Claims
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1. A flexible OLED display panel, comprising:
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a flexible substrate; an OLED display layer formed on a surface of the flexible substrate; and an encapsulation structure formed on the flexible substrate, covering the OLED display layer and configured to prevent permeation of moisture into the OLED display layer; wherein the encapsulation structure includes; a first inorganic thin film formed on a surface of the OLED display layer and a surrounding region of the surface; a first organic thin film formed on a surface of the first inorganic thin film; and a plurality of dams arranged on the surface of the flexible substrate and disposed at ends of the first inorganic thin film; a second inorganic thin film formed on the flexible substrate and covering the first organic thin film and the dams; a second organic thin film formed on a surface of the second inorganic thin film; a third inorganic thin film formed on a surface of the second organic thin film; wherein each of the dams includes a first sub-dam close to the first inorganic thin film and a second sub-dam away from the first inorganic thin film, a gap is formed between the first sub-dam and the second sub-dam which are located at a same end of the first inorganic thin film, and the gap is filled with waterproof material; and a space is reserved between an edge of the first organic thin film and the first sub-dam to connect the first inorganic thin film and the second inorganic thin film;
the space is filled with a first inorganic material layer made of the same material as the first inorganic thin film and the second inorganic thin film;
wherein a sum of a film thickness of the first inorganic thin film and a film thickness of the first organic thin film is greater than a height of the dams. - View Dependent Claims (2, 3, 4, 5)
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6. A flexible OLED display panel, comprising:
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a flexible substrate; an OLED display layer formed on a surface of the flexible substrate; and an encapsulation structure formed on the flexible substrate, covering the OLED display layer and configured to prevent permeation of moisture into the OLED display layer; wherein the encapsulation structure includes; a first inorganic thin film formed on a surface of the OLED display layer and a surrounding region of the surface; a first organic thin film formed on a surface of the first inorganic thin film; and a plurality of dams arranged on the surface of the flexible substrate and disposed at ends of the first inorganic thin film; a second inorganic thin film formed on the flexible substrate and covering the first organic thin film and the dams; a second organic thin film formed on a surface of the second inorganic thin film; a third inorganic thin film formed on a surface of the second organic thin film; wherein each of the dams includes a first sub-dam close to the first inorganic thin film and a second sub-dam away from the first inorganic thin film, a gap is formed between the first sub-dam and the second sub-dam which are located at a same end of the first inorganic thin film, and the gap is filled with waterproof material;
wherein a sum of a film thickness of the first inorganic thin film and a film thickness of the first organic thin film is greater than a height of the dams. - View Dependent Claims (7, 8, 9, 10)
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Specification