Luminescent display and method of making

Details Luminescent display and method of making Luminescent display and method of making

H - Electricity

05

B

H05B 33/02 (2006.01) G09F 9/313 (2006.01) G09F 13/22 (2006.01) H05B 33/12 (2006.01) H05B 33/14 (2006.01) H05B 33/22 (2006.01)

Patent

CA 2327870

The invention relates to a luminescent display comprising a first electrode, a second electrode, an organic light emitting layer disposed between the first and second electrodes, and a luminescent material which receives light from the organic light emitting layer and converts the light to a different wavelength, wherein the first and second electrodes together define an overlap region in which the organic light emitting layer is activated to emit light, and the luminescent material is disposed in a portion of the overlap region. The invention also relates to a method comprising the steps of creating an image and printing the image on a light emitting device comprising an organic light emitting layer after the light emitting device has been formed. The image may be created, for example on a personal computer, and printed with an inkjet printer. The image may be printed in phosphors which emit light of one wavelength upon absorbing light of a different wavelength from the organic light emitting layer. Various embodiments of the invention allow customized luminescent displays to be easily fabricated by end users by applying a phosphor pattern to a preformed, encapsulated light emitting device.

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