Method for forming an organic light emitting diode device
First Claim
1. A method of forming an organic light emitting diode device (10) comprising:
- depositing a color filter (24) on a first glass plate (12), the color filter comprising dyes or pigments that produce a primary color in the color filter;
depositing a glass-based frit (26) on the first glass plate as a loop circumscribing the color filter; and
irradiating the glass-based frit with electromagnetic radiation to densify the glass-based frit on the first glass plate.
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Abstract
A method for sealing an organic light emitting diode (OLED) device is disclosed wherein the OLED device comprises a color filter. A color filter is deposited on a first glass plate or substrate and a glass-based frit is then deposited in a loop around the color filter, The deposited fit loop is then heated by electromagnetic energy to evaporate organic constituents and to sinter the fit in a pre-sintering step. An OLED device may then be assembled by positioning a second glass plate comprising an organic light emitting material deposited thereon in overlying registration with the first glass plate, with the color filer and the organic light emitting material positioned between the plates. The fit is then heated with a laser to form a hermetic seal between the first and second glass plates.
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Citations
20 Claims
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1. A method of forming an organic light emitting diode device (10) comprising:
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depositing a color filter (24) on a first glass plate (12), the color filter comprising dyes or pigments that produce a primary color in the color filter; depositing a glass-based frit (26) on the first glass plate as a loop circumscribing the color filter; and irradiating the glass-based frit with electromagnetic radiation to densify the glass-based frit on the first glass plate. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A method of forming an organic light emitting diode device (10) comprising:
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depositing a color filter (24) on a first glass plate (12); depositing a glass-based frit (26) on the first glass plate as a loop circumscribing the color filter; depositing an organic light emitting material (22) on a second glass plate (14); impinging electromagnetic radiation on the glass-based frit to densify the glass-based frit on the first glass plate; aligning the first glass plate with the second glass plate in an overlapping relationship; and heating the glass-based frit with a laser (46) to soften the glass based frit and form a hermetic seal between the first and second glass plates, wherein the color filter and the organic light emitting material are enclosed between the first and second glass substrates and the hermetic seal. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 16, 17)
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18. A method of forming an organic light emitting diode device (10) comprising:
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depositing a color filter (24) on a first glass plate (12), the color filter comprising dyes or pigments; depositing a glass-based frit paste (26) on the first glass plate as a loop circumscribing the color filter; positioning a resistive heating element (42) in contact with the glass-based frit paste; flowing an electric current through the resistive heating element to heat the frit paste to a first temperature and drive off organic binders in the frit without densifying the glass-based frit paste; and varying a magnitude of the electric current through the resistive heating element to heat the glass-based frit paste to a second temperature greater than the first temperature, thereby densifying the glass-based frit paste. - View Dependent Claims (19, 20)
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Specification