Flat panel display device and encapsulation substrate thereof
First Claim
1. A flat panel display device comprising:
- a glass substrate;
a light emission unit formed on the glass substrate;
a passivation layer covering exposed surfaces of the light emission unit;
an encapsulation substrate, the encapsulation substrate comprising;
a metal layer, anda glass cover layer stacked on the metal layer;
a frit bonding the glass substrate to the glass cover layer, the fit surrounding peripheral edges of the metal layer and the passivation layer;
a sealant disposed in a partial region extending inwardly from the frit and between the metal layer and the glass substrate; and
a desiccant disposed in a remaining region extending inwardly from the partial region and between the metal layer and the glass substrate, the desiccant covering, by contact, exposed surfaces of the passivation layer, the sealant, the metal layer and the glass substrate.
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0 Petitions
Accused Products
Abstract
A flat panel display device having an improved encapsulation structure includes a glass substrate; a light emission unit formed on the glass substrate; an encapsulation substrate formed on the glass substrate; and frit sealing a space between the glass substrate and the cover layer. The encapsulation unit includes a metal layer formed of a metallic material and a cover layer stacked on the metal layer and formed of a glass material in order to cover the light emission unit. In the above encapsulation structure, pressure resistance and vapor permeability resistance of a flat panel device may be improved and thus deterioration of a light emission unit due to permeation of moisture may be prevented. Also, heat radiation capacity may be improved and thus deterioration in performance of a product may be prevented.
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Citations
14 Claims
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1. A flat panel display device comprising:
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a glass substrate; a light emission unit formed on the glass substrate; a passivation layer covering exposed surfaces of the light emission unit; an encapsulation substrate, the encapsulation substrate comprising; a metal layer, and a glass cover layer stacked on the metal layer; a frit bonding the glass substrate to the glass cover layer, the fit surrounding peripheral edges of the metal layer and the passivation layer; a sealant disposed in a partial region extending inwardly from the frit and between the metal layer and the glass substrate; and a desiccant disposed in a remaining region extending inwardly from the partial region and between the metal layer and the glass substrate, the desiccant covering, by contact, exposed surfaces of the passivation layer, the sealant, the metal layer and the glass substrate. - View Dependent Claims (2, 3, 4, 5, 6)
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7. A flat panel display device comprising:
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a glass substrate; a light emission unit formed on the glass substrate; a passivation layer covering all exposed surfaces of the light emission unit; a desiccant covering, by contact, all exposed surfaces of the passivation layer; a sealant disposed on peripheral surfaces of the desiccant; a metallic layer disposed on upper surfaces of the desiccant and the sealant; a frit surrounding the metal layer and the sealant; and a glass cover layer disposed on the metallic layer and frit, the frit bonding the glass substrate to the glass cover layer. - View Dependent Claims (8, 9, 10)
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11. A method of forming a flat panel display device comprising:
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forming a glass substrate; forming a light emission unit on the glass substrate; covering, by contact, all exposed surfaces of the light emission unit with a passivation layer; covering, by contact, all exposed surfaces of the passivation layer with a desiccant; covering, by contact, side surfaces of the desiccant with a sealant; disposing a metallic layer on upper surfaces of the sealant and the desiccant; surrounding the metal layer and the sealant with a frit; and disposing a glass cover layer on the metallic layer and frit, the frit bonding the glass substrate to the glass cover layer. - View Dependent Claims (12, 13, 14)
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Specification