Multilayer devices formed by multilayer thermal transfer
IPC분류정보
국가/구분
United States(US) Patent
등록
국제특허분류(IPC7판)
G03F-007/34
G03F-007/095
출원번호
US-0137616
(2002-05-02)
발명자
/ 주소
Wolk, Martin B.
Baude, Paul F.
Florczak, Jeffrey M.
McCormick, Fred B.
Hsu, Yong
출원인 / 주소
3M Innovative Properties Company
인용정보
피인용 횟수 :
21인용 특허 :
45
초록▼
A thermal transfer element for forming a multilayer device may include a substrate and a multicomponent transfer unit that, when transferred to a receptor, is configured and arranged to form a first operational layer and a second operational layer of a multilayer device. In at least some instances,
A thermal transfer element for forming a multilayer device may include a substrate and a multicomponent transfer unit that, when transferred to a receptor, is configured and arranged to form a first operational layer and a second operational layer of a multilayer device. In at least some instances, the thermal transfer element also includes a light-to-heat conversion (LTHC) layer that can convert light energy to heat energy to transfer the multicomponent transfer unit. Transferring the multicomponent transfer unit to the receptor may include contacting a receptor with a thermal transfer element having a substrate and a multicomponent transfer unit. Then, the thermal transfer element is selectively heated to transfer the multicomponent transfer unit to the receptor according to a pattern to form at least first and second operational layers of a device. Often, when the thermal transfer element includes a LTHC layer between the substrate and the transfer layer, the thermal transfer element can be illuminated with light according to the pattern and the light energy is converted to heat energy to selectively heat the thermal transfer element.
대표청구항▼
1. A method of making an organic electroluminescent device disposed on a receptor substrate, comprising: forming a first active layer and a second active layer on the receptor substrate by thermally transferring a multicomponent transfer unit to the receptor substrate from a thermal transfer elem
1. A method of making an organic electroluminescent device disposed on a receptor substrate, comprising: forming a first active layer and a second active layer on the receptor substrate by thermally transferring a multicomponent transfer unit to the receptor substrate from a thermal transfer element comprising the multicomponent transfer unit and a substrate, wherein the first active layer is configured and arranged to produce a charge carrier, conduct a charge carrier, produce light, waveguide light, or any combination thereof and the second active layer is configured and arranged to produce a charge carrier, conduct a charge carrier, produce light, waveguide light, or any combination thereof. 2. The method of claim 1, wherein the first active layer is a light producing layer. 3. The method of claim 1 wherein the first active layer comprises a light emitting polymer. 4. The method of claim 1, wherein the first active layer comprises a small molecule emitter. 5. The method of claim 2, wherein the second active layer is a charge conducting layer. 6. The method of claim 2, wherein the second active layer is a charge semiconducting layer. 7. The method of claim 2, wherein the second active layer is a light producing layer. 8. The method of claim 1, wherein the first active layer is a light emitting layer and the second active layer is a fluorescing or phosphorescing layer. 9. A method of making an organic electroluminescent displayed device, the method comprising: providing a plurality of first electrodes on a substrate; contacting the substrate with a donor comprising a light-to-heat conversion layer and a transfer layer, the transfer layer comprising a multicomponent transfer unit, the mutlicomponent transfer unit comprising an organic light-emitting material; selectively irradiating the light-to-heat conversion layer of the substrate to effect the transfer of portions of the transfer layer from the donor to the substrate to form at least a portion of a light-emitting layer and at least a portion of a charge conducting layer; and providing a plurality of second electrodes over the portions of the transfer layer transferred to the substrate. 10. The method of claim 9, wherein selectively irradiating the light-to-heat conversion layer comprises selectively irradiating the light-to-heat conversion layer with a laser. 11. The method of claim 9, wherein the light-to-heat conversion layer comprises a light absorbing material. 12. The method of claim 9, further comprising repeating the contacting and selectively irradiating steps with one or more additional donors which have different organic light-emitting materials. 13. The method of claim 12, wherein the donor and the one or more additional donors comprise a red donor, a blue donor, and a green donor. 14. A method of making a device disposed on a receptor substrate, comprising: forming a first active layer and a second active layer on the receptor substrate by thermally transferring a multicomponent transfer unit to the receptor substrate from a thermal transfer element comprising the multicomponent transfer unit and a substrate, wherein the first active layer is configured and arranged to produce a charge carrier, conduct a charge carrier, produce light, waveguide light, or any combination thereof and the second active layer is configured and arranged to produce a charge carrier, conduct a charge carrier, produce light, waveguide light, or any combination thereof. 15. The method of claim 14, wherein the first active layer is a charge conducting or semiconducting layer. 16. The method of claim 15, wherein the second active layer is a light producing layer. 17. The method of claim 14, wherein the first active layer is a waveguiding layer. 18. The method of claim 14, wherein the device comprises a field effect transistor. 19. The method of claim 14, wherein the device comprises an optical waveguide.
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