Display device

Abstract

The present invention provides a display device comprising a backlight module, a display panel disposed on the backlight module, and an average wavelength conversion element comprising a filter material or a quantum dot material, wherein the display panel has a display surface facing away from the backlight module, and the average wavelength conversion element is disposed on the display surface of the display panel or within the backlight module.

Claims

1. A display device comprising: a backlight module; a display panel disposed on the backlight module, the display panel having a display surface facing away from the backlight module; an averaging wavelength conversion element comprising a filter material or a quantum dot material, the averaging wavelength conversion element being disposed on the display surface of the display panel or within the backlight module; and a front light module disposed on the display surface of the display panel, wherein the front light module comprises: a front light guide plate; and at least one front light source disposed on at least one side of the front light guide plate, wherein the display panel is a microtransmissive or semi-transmissive / semi-reflective type.

2. The display device as claimed in claim 1 further includes a cover plate disposed on the display surface of the display panel, wherein the cover plate includes: a substrate; and a hardening layer disposed on the substrate, and the average wavelength conversion element is disposed between the substrate and the hardening layer, wherein the average wavelength conversion element includes the filter material, and the cover plate has an average transmittance corresponding to a wavelength band.

3. The display device as claimed in claim 2, wherein the filter material comprises cerium dioxide or zinc oxide, the wavelength range is 300 to 379 nanometers, and the average transmittance is less than 0.5%.

4. The display device as claimed in claim 2, wherein the filter material comprises cerium dioxide and zinc oxide, the wavelength range is 380 to 400 nanometers, and the average transmittance is less than 50%.

5. The display device as claimed in claim 2, wherein the filter material comprises cerium dioxide and zinc oxide, the cover plate further comprises a first antireflective layer and a second antireflective layer, the second antireflective layer being disposed between the substrate and the average wavelength conversion element, the first antireflective layer being disposed between the second antireflective layer and the average wavelength conversion element, the first antireflective layer comprising silicon nitride or magnesium fluoride, the second antireflective layer comprising titanium dioxide, the wavelength band being 420 to 780 nanometers, and the average transmittance being greater than 95%.

6. The display device of claim 1, wherein the backlight module comprises: a light guide plate; and at least one light source disposed on at least one side of the light guide plate, wherein the average wavelength conversion element is disposed on or within the light guide plate, wherein the average wavelength conversion element comprises the quantum dot material.

7. The display device as claimed in claim 6, wherein the at least one light source comprises two light sources disposed on a pair of sides of the light guide plate.

8. The display device as claimed in claim 6, wherein the at least one light source comprises four light sources respectively disposed on the four sides of the light guide plate.

9. The display device as claimed in claim 1, wherein the backlight module further includes a diffuser, the average wavelength conversion element is disposed within the diffuser, and the average wavelength conversion element includes the quantum dot material.

10. The display device as claimed in claim 1, wherein the backlight module further includes a brightness enhancement film, the average wavelength conversion element is disposed within the brightness enhancement film, and the average wavelength conversion element includes the quantum dot material.

11. The display device as claimed in claim 1, wherein the backlight module further includes a reflector, the average wavelength conversion element is disposed within the reflector, and the average wavelength conversion element includes the quantum dot material.

12. The display device of claim 1, wherein the backlight module comprises: a light guide plate; at least one brightness enhancement film disposed on the light guide plate; at least one diffuser sheet disposed on the brightness enhancement film; and an adhesive disposed between any two of the light guide plate, the at least one brightness enhancement film and the at least one diffuser sheet, wherein the average wavelength conversion element is disposed within the adhesive and the average wavelength conversion element comprises a quantum dot material.

13. A display device comprising: a display panel having a display surface; a front light module disposed on the display surface of the display panel, wherein the front light module comprises: a front light guide plate; at least one front light source disposed on at least one side of the front light guide plate; and a plurality of dots disposed on an upper surface or a lower surface of the front light guide plate, wherein the dots comprise a plurality of microstructures, and the cross-sectional shape of each of the microstructures comprises a hemispherical or asymmetrical shape; and an averaging wavelength conversion element disposed on or within the front light module, wherein the averaging wavelength conversion element comprises a filter material or a quantum dot material.

14. The display device of claim 13 further includes a cover plate disposed on the side of the front light module opposite to the display panel, wherein the cover plate includes: a substrate; and a hardening layer disposed on the substrate; wherein the average wavelength conversion element is disposed between the substrate and the hardening layer, the average wavelength conversion element includes the filter material, and the cover plate has an average transmittance corresponding to a wavelength band.

15. The display device of claim 14, wherein the cover plate has a rough surface, wherein the rough surface has a plurality of contour units, the average perimeter of the contour units falling in the range of 40 micrometers to 70 micrometers or 37 micrometers to 43 micrometers, and the rough surface has an arithmetic mean roughness falling in the range of 0.15 micrometers to 0.25 micrometers or 0.22 micrometers to 0.28 micrometers.

16. The display device as claimed in claim 13, wherein the size of one of the dots is less than or equal to 20 micrometers.

17. The display device of claim 13, wherein the average wavelength conversion element is disposed within the front light guide plate, the average wavelength conversion element comprising the quantum dot material, the quantum dot material comprising at least one of a red quantum dot material and a green quantum dot material, and the weight of the at least one of the red quantum dot material and the green quantum dot material is in the ratio of 0.1 parts per million to the weight of the front light guide plate.

18. The display device of claim 13, wherein the average wavelength conversion element is disposed on the front light guide plate, the average wavelength conversion element comprising the quantum dot material, the quantum dot material comprising at least one of a red quantum dot material and a green quantum dot material, and the weight of the at least one of the red quantum dot material and the green quantum dot material is in the ratio of 0.1 parts per million to the weight of the front light guide plate.

19. A display device comprising: a backlight module; a display panel disposed on the backlight module, the display panel having a display surface facing away from the backlight module; an average wavelength conversion element comprising a filter material, the average wavelength conversion element being disposed on the display surface of the display panel; and a cover plate disposed on the display surface of the display panel, wherein the cover plate comprises: a substrate; and a hardening layer disposed on the substrate, wherein the average wavelength conversion element is disposed between the substrate and the hardening layer, and the cover plate has an average transmittance corresponding to a wavelength band; wherein the filter material comprises cerium dioxide or zinc oxide, the wavelength band is 300 to 379 nanometers, and the average transmittance is less than 0.5%.

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