Flexible lighting devices
AssigneeUniversal Display Corporation
InventorsPrashant Mandlik, Peter Levermore, Huiqing Pang, Emory Krall, Jason Paynter, Ruiqing Ma
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Abstract
A first device and methods for manufacturing the first device are provided. The first device may comprise a flexible substrate and at least one organic light emitting device (OLED) disposed over the flexible substrate. The first device may have a flexural rigidity between 10−1 Nm and 10−6 Nm, and the ratio of the critical strain energy release rate to the material density factor for the first device may be greater than 0.05 J m/Kg.
Claims21
A first device, comprising:
- a flexible substrate;
- and
- at least one organic light emitting device (OLED) disposed over the flexible substrate;
- wherein the first device has a flexural rigidity between 10−1 Nm and 10−6 Nm;
- wherein the ratio of the critical strain energy release rate to the material density factor for the first device is greater than 0.05 J m/Kg;
- and
- wherein the first device is configured to have each of axial, bending and torsional degrees of freedom.
A device, comprising:
- a substrate;
- one or more OLEDs disposed over the substrate,
- wherein each OLED comprises:
- a first electrode;
- a second electrode;
- and an electro-luminescent material disposed between the first and second electrodes;
- an encapsulation layer disposed over at least a part of the one or more OLEDs;
- and
- a lamination layer comprises a spray coating that is sprayed over the encapsulation layer and the one or more OLED.
A first device, comprising:
- a flexible substrate;
- and
- at least one organic light emitting device (OLED) disposed over the flexible substrate;
- wherein the first device has a flexural rigidity between 10−1 Nm and 10−6 Nm;
- wherein the ratio of the critical strain energy release rate to the material density factor for the first device is greater than 0.05 J m/Kg;
- and
- wherein the first device is configured not to have shear degree freedom.
A first device, comprising:
- a flexible substrate;
- and
- at least one organic light emitting device (OLED) disposed over the flexible substrate;
- wherein the first device has a flexural rigidity between 10−1 Nm and 10−6 Nm;
- wherein the ratio of the critical strain energy release rate to the material density factor for the first device is greater than 0.05 J m/Kg;
- and
- wherein the first device is configured to deform non-linearly under an applied load.
A first device, comprising:
- a flexible substrate;
- and
- at least one organic light emitting device (OLED) disposed over the flexible substrate;
- wherein the first device has a flexural rigidity between 10−1 Nm and 10−6 Nm;
- wherein the ratio of the critical strain energy release rate to the material density factor for the first device is greater than 0.05 J m/Kg;
- and
- wherein the first device has a ratio of the (hanging length)4 to flexural rigidity (a4/D) of at least 0.02 cm4/dynes.cm.
A first device, comprising:
- a flexible substrate;
- and
- at least one organic light emitting device (OLED) disposed over the flexible substrate;
- wherein the first device has a flexural rigidity between 10−1 Nm and 10−6 Nm;
- wherein the ratio of the critical strain energy release rate to the material density factor for the first device is greater than 0.05 J m/Kg;
- and
- wherein the first device is configured such that
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Dependencies are inferred from the claim text.