Organic light emitting display apparatus
View Patent ↗A top emission type organic light emitting display apparatus that can improve contrast without using a black matrix and can simply the manufacture of a color filter. The top emission type organic light emitting display apparatus includes a substrate, an organic light emitting device arranged on the substrate and including a first electrode layer and a second electrode layer arranged opposite to each other and an organic light emitting layer arranged between the first electrode layer and the second electrode layer, an encapsulating member arranged to encapsulate the organic light emitting device, a polarizing film arranged on the encapsulating member and a color filter arranged between the encapsulating member and the polarizing film, the color filter being arranged directly on the polarizing film.
1. A top emission type organic light emitting display apparatus, comprising:
a substrate;
an organic light emitting device arranged on the substrate and including a first electrode layer and a second electrode layer arranged opposite to each other and an organic light emitting layer arranged between the first electrode layer and the second electrode layer, wherein the organic light emitting device is adapted to emit white light;
an encapsulating member arranged to encapsulate the organic light emitting device;
a polarizing film arranged on the encapsulating member;
a color filter arranged between the encapsulating member and the polarizing film, the color filter being arranged directly on the polarizing film, the color filter including:
a red light transmitting region through which light in a red wavelength band passes, a blue light transmitting region through which light in a blue wavelength band passes, and a green light transmitting region through which light in a green wavelength band passes; and
an adhesive layer arranged only in spaces between adjacent ones of the red, green and blue light transmitting regions of the color filter arranged on the polarizing film, the adhesive layer being absent of a black matrix.
2. A bottom emission type organic light emitting display apparatus, comprising:
a transparent substrate;
an organic light emitting device arranged on the substrate and including a first electrode layer and a second electrode layer arranged opposite to each other and an organic light emitting layer arranged between the first electrode layer and the second electrode layer, wherein the organic light emitting device is adapted to emit white light;
an encapsulating member arranged to encapsulate the organic light emitting device;
a polarizing film arranged on the substrate;
a color filter arranged between the substrate and the polarizing film, the color filter being arranged directly on the polarizing film, the color filter including:
a red light transmitting region through which light in a red wavelength band passes; a blue light transmitting region through which light in a blue wavelength band passes; and a green light transmitting region through which light in a green wavelength band passes; and
an adhesive layer arranged only in spaces between adjacent ones of the red, green and blue light transmitting regions of the color filter arranged on the polarizing film, the adhesive layer being absent of a black matrix.
3. The organic light emitting display apparatus of claim 1 , wherein the red light transmitting region, the blue light transmitting region, and the green light transmitting region are arranged to correspond to light emitting regions of the organic light emitting device.
4. The organic light emitting display apparatus of claim 1 , wherein the color filter is produced directly on the polarizing film by a photolithography process.
5. The organic light emitting display apparatus of claim 1 , wherein the color filter is produced directly on the polarizing film by a laser induced thermal imaging (LITI) process.
6. The organic light emitting display apparatus of claim 1 , wherein the encapsulating member is a substrate comprised of a glass material.
7. The organic light emitting display apparatus of claim 6 , further comprising a sealing member arranged on the substrate to seal the encapsulating member and the substrate.
8. The organic light emitting display apparatus of claim 7 , wherein the sealing member is comprised of frit glass.
9. The organic light emitting display apparatus of claim 1 , wherein the encapsulating member comprises a plurality of organic layers and a plurality of inorganic layers which are alternately stacked.
10. The organic light emitting display apparatus of claim 1 , wherein the organic light emitting device is a passive matrix type organic light emitting device.
11. The organic light emitting display apparatus of claim 1 , wherein the organic light emitting device is an active matrix type organic light emitting device.
12. The organic light emitting display apparatus of claim 1 , further comprising a buffer layer arranged on the substrate.
13. The organic light emitting display apparatus of claim 1 , wherein the polarizing film is comprised of a linear polarizer adhered to a phase retarder.
14. The organic light emitting display apparatus of claim 1 , the display apparatus being absent of any black matrix forming material.
15. The organic light emitting display apparatus of claim 2 , the display apparatus being absent of any black matrix forming material.