Display apparatus
A display apparatus includes an organic electroluminescence (OEL) device and a color filter. At different correlated color temperatures (CCTs), a light emitting spectrum of the OEL device is adjusted to meet specific display requirements and improve the display quality of the display apparatus. In addition, a light filtering spectrum of the color filter is adjusted simultaneously to match the light emitting spectrum of the OEL device, so that the display apparatus has an excellent display effect.
1. A display apparatus, comprising:
an organic electroluminescence device, for emitting a light, wherein a curve of a relationship between the wavelength and the light intensity of the light has a peak in a band of 420 nm to 480 nm, a band of 480 nm to 540 nm, and a band of 590 nm to 650 nm respectively; and
a color filter, for receiving and converting the light into a color light, wherein a correlated color temperature (CCT) of a white screen displayed by the display apparatus is in the range of 8000K to 12000K, and a curve of a relationship between the wavelength and the light intensity of the white screen has a first peak in a band of 420 nm to 480 nm, a second peak in a band of 480 nm to 540 nm, and a third peak in a band of 590 nm to 650 nm respectively, and a ratio of the second peak to the first peak is in the range of 0.31 to 0.40.
2. The display apparatus according to claim 1 , wherein a ratio of the third peak to the first peak is in the range of 0.24 to 0.32.
3. The display apparatus according to claim 1 , having the following color performance in CIE1931 chromaticity diagram:
0.63≦Rx≦0.65, 0.32≦Ry≦0.345;
0.285≦Gx≦0.315, 0.59≦Gy≦0.615;
0.135≦Bx≦0.155, 0.04≦By≦0.065; and
0.27≦Wx≦0.33, 0.28≦Wy≦0.35.
4. The display apparatus according to claim 1 , wherein a curve of a relationship between the filter wavelength and the light intensity of the color filter has a fourth peak in a band of 430 nm to 460 nm, and a fifth peak in a band of 510 nm to 560 nm respectively, and the fifth peak is greater than the fourth peak.
5. The display apparatus according to claim 1 , wherein a ratio of the light intensity when the filter wavelength of the color filter is 650 nm to the light intensity when the filter wavelength is 580 nm is greater than 18.
6. A display apparatus, comprising:
a white light organic electroluminescence device, for emitting a white light, wherein a curve of a relationship between the wavelength and the light intensity of the white light has a peak in a band of 420 nm to 480 nm, a band of 480 nm to 540 nm, and a band of 590 nm to 650 nm respectively; and
a color filter, for receiving and converting the white light into a color light,
wherein a correlated color temperature (CCT) of a white screen displayed by the display apparatus is in the range of 4500K to 8500K, and a curve of a relationship between the wavelength and the light intensity of the white screen has a first peak in a band of 420 nm to 480 nm, a second peak in a band of 480 nm to 540 nm, and a third peak in a band of 590 nm to 650 nm, and a ratio of the second peak to the first peak is in the range of 0.43 to 0.52.
7. The display apparatus according to claim 6 , wherein a ratio of the third peak to the first peak is in the range of 0.34 to 0.42.
8. The display apparatus according to claim 6 , having the following color performance in CIE1931 chromaticity diagram:
0.63≦Rx≦0.65, 0.32≦Ry≦0.345;
0.285≦Gx≦0.315, 0.59≦Gy≦0.615;
0.135≦Bx≦0.155, 0.04≦By≦0.065; and
0.27≦Wx≦0.33, 0.28≦Wy≦0.35.
9. The display apparatus according to claim 6 , wherein a curve of a relationship between the filter wavelength and the light intensity of the color filter has a fourth peak in a band of 430 nm to 460 nm and a fifth peak in a band of 510 nm to 560 nm respectively, and the fifth peak is greater than the fourth peak.
10. The display apparatus according to claim 6 , wherein a ratio of the light intensity when the filter wavelength of the color filter is 650 nm to the light intensity when the filter wavelength is 580 nm is greater than 18.