Organic light emitting diode lighting device
AssigneeLG Display Co., Ltd.
InventorJungeun Lee
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Abstract
Disclosed herein is an organic light emitting diode (OLED) lighting device capable of expressing characters or drawings with various colors. The OLED lighting device according to aspects of the present disclosure includes a thermochromic pattern arranged inside or outside of a substrate, the thermo chromic pattern having a property of changing a color thereof according to a change in temperature. By applying a reversible thermochromic pattern, which may maintain or lose an original color thereof according to a temperature change, to the inside or outside of the substrate, it is possible to express characters and drawings with various colors without designing a processing pattern inside the substrate.
Claims20
An organic light emitting diode (OLED) lighting device, comprising:
- a substrate;
- an auxiliary wiring arranged on a first surface of the substrate;
- an OLED arranged on the auxiliary wiring including a first electrode connected to the auxiliary wiring, and an organic light emitting layer and a second electrode stacked on the first electrode;
- and
- a thermochromic pattern arranged on a second surface of the substrate.
An OLED lighting device, comprising:
- a substrate;
- a buffer layer arranged on the substrate;
- an auxiliary wiring arranged on the buffer layer;
- an OLED arranged on the auxiliary wiring and including a first electrode connected to the auxiliary wiring, and an organic light emitting layer and a second electrode stacked on the first electrode;
- and
- a thermochromic pattern arranged inside the substrate.
An organic light emitting diode (OLED) panel, comprising:
- a substrate having first and second surfaces facing each other;
- an auxiliary wiring disposed on the first surface;
- an OLED disposed on the auxiliary wiring and including a first electrode connected to the auxiliary wiring and an organic light emitting layer and a second electrode stacked on the first electrode;
- a thermochromic pattern disposed on the second surface;
- a barrier layer covering the thermochromic pattern and the second surface;
- and
- an encapsulation layer encapsulating the OLED.
Dependencies are inferred from the claim text.