Polarizer and organic light-emitting display device including the same
View Patent ↗Provided are a polarizer and an organic light-emitting display device including the same. The organic light-emitting display device may be protected by enabling the polarizer to effectively absorb external impact.
1. An organic light-emitting display device, comprising:
a lower substrate on which an organic light-emitting device is disposed;
a sealing substrate for sealing the lower substrate; and
a polarizer disposed on the sealing substrate, and the polarizer comprising a transparent film, a retardation film, a polarizing film, a first adhesive layer disposed between the sealing substrate and the transparent film, a second adhesive layer disposed between the transparent film and the retardation film, and a third adhesive layer disposed between the retardation film and the polarizing film.
2. The organic light-emitting display device of claim 1 , wherein each of at least two of the first adhesive layer, the second adhesive layer, and the third adhesive layer has a thickness greater than 50 μm.
3. The organic light-emitting display device of claim 1 , wherein at least one of the first adhesive layer, the second adhesive layer, and the third adhesive layer is a color adhesive layer that absorbs light having a specific wavelength.
4. The organic light-emitting display device of claim 1 , wherein the transparent film is formed of a polymer material having a high transmittance.
5. The organic light-emitting display device of claim 1 , wherein the transparent film comprises an optical correction material that selectively absorbs light having a specific wavelength.
6. The organic light-emitting display device of claim 1 , wherein the transparent film comprises a color correction material.
7. The organic light-emitting display device of claim 1 , wherein the transparent film is an impact-resistant film that absorbs external impact.
8. The organic light-emitting display device of claim 1 , wherein the retardation film is formed by coating a liquid crystal to delay a phase of light in a specific wavelength band by λ/4 and orient liquid crystal molecules.
9. The organic light-emitting display device of claim 1 , wherein the polarizing film is an iodine-based polarizing film, a dye-based polarizing film, a polyene-based polarizing film, or an iodine and dye-containing polarizing film.
10. The organic light-emitting display device of claim 1 , further comprising:
a first substrate layer disposed between the polarizing film and the third adhesive layer; and
a second substrate layer disposed on the polarizing film.
11. The organic light-emitting display device of claim 10 , wherein each of the first substrate layer and the second substrate layer comprises tri-acetyl-cellulose (TAC).
12. The organic light-emitting display device of claim 10 , wherein hard coating or anti-reflection coating is performed on a surface of the second substrate layer.
13. A polarizer, comprising:
a transparent film having a high transmittance of light;
a retardation film disposed on the transparent film;
a polarizing film disposed on the retardation film; and
an adhesive film comprising a first adhesive layer disposed between a sealing substrate for sealing an organic light-emitting device and the transparent film, a second adhesive layer disposed between the transparent film and the retardation film, and a third adhesive layer disposed between the retardation film and the polarizing film.
14. The polarizer of claim 13 , wherein each of at least two of the first adhesive layer, the second adhesive layer, and the third adhesive layer has a thickness greater than 50 μm.
15. The polarizer of claim 13 , wherein at least one of the first adhesive layer, the second adhesive layer, and the third adhesive layer is a color adhesive layer that absorbs light having a specific wavelength.
16. The polarizer of claim 13 , wherein the transparent film is formed of a polymer material having a high transmittance.
17. The polarizer of claim 13 , wherein the transparent film comprises an optical correction material that selectively absorbs light having a specific wavelength.
18. The polarizer of claim 13 , wherein the transparent film comprises a color correction material.
19. The polarizer of claim 13 , wherein the transparent film is an impact-resistant film that absorbs external impact.
20. The polarizer of claim 13 , further comprising:
a first substrate layer disposed between the polarizing film and the third adhesive layer; and
a second substrate layer disposed on the polarizing film.