Laminate for display devices and display devices

Abstract

The present disclosure provides a multilayer body for display devices, the multilayer body comprising a base material layer and a functional layer. With respect to this multilayer body for display devices, the functional layer contains a resin, an organic ultraviolet absorbent and an inorganic ultraviolet absorbent; and if the transmitted yellow index as determined by a color measurement method that does not use an integrating sphere is defined as a first transmitted yellow index, and the transmitted yellow index as determined by a color measurement method that uses an integrating sphere is defined as a second transmitted yellow index, the value obtained by subtracting the second transmitted yellow index of this multilayer body for display devices from the first transmitted yellow index of this multilayer body for display devices is 0.4 or more.

Claims

1. A laminate for a display device having a base layer and a functional layer, The functional layer contains a resin, an organic ultraviolet absorber, and an inorganic ultraviolet absorber. The amount of the inorganic ultraviolet absorber in the functional layer is 0.5 parts by mass or more and 10 parts by mass or less, relative to 100 parts by mass of the resin component contained in the functional layer. A laminate for a display device in which, when the transmitted yellowness measured by a colorimetric method that does not use an integrating sphere is defined as the first transmitted yellowness, and the transmitted yellowness measured by a colorimetric method that uses an integrating sphere is defined as the second transmitted yellowness, the value obtained by subtracting the second transmitted yellowness of the laminate for a display device from the first transmitted yellowness of the laminate for a display device is 0.4 or more.

2. The laminate for a display device according to claim 1, wherein the average particle size of the inorganic ultraviolet absorber is 10 nm or more and 100 nm or less.

3. The laminate for a display device according to claim 1 or claim 2, wherein the inorganic ultraviolet absorber is unevenly distributed on the side of the functional layer opposite to the substrate layer.

4. The laminate for a display device according to claim 3, wherein, when the content of the inorganic ultraviolet absorber in the functional layer is 100% by mass, the content of the inorganic ultraviolet absorber contained in the portion of the functional layer from the side of the functional layer opposite to the base layer to a position half the thickness of the functional layer is 70% by mass or more.

5. The laminate for a display device according to any one of claims 1 to 4, wherein the organic ultraviolet absorber is uniformly dispersed in the functional layer.

6. The laminate for a display device according to any one of claims 1 to 5, wherein the functional layer contains inorganic particles.

7. The laminate for a display device according to claim 6, wherein the inorganic particles in the functional layer are present in greater quantities than the inorganic ultraviolet absorber, based on mass.

8. The laminate for a display device according to claim 7, wherein the mass ratio of the inorganic ultraviolet absorber to the inorganic particles is 1:99 to 10:

90.

9. The laminate for a display device according to any one of claims 1 to 8, wherein the functional layer contains a color adjusting agent.

10. The laminate for a display device according to any one of claims 1 to 9, wherein the substrate is a resin substrate.

11. The laminate for a display device according to claim 10, wherein the resin substrate contains a polyimide resin.

12. A laminate for a display device according to any one of claims 1 to 11, wherein the laminate has an impact-absorbing layer on the side of the base layer opposite to the functional layer, or between the base layer and the functional layer.

13. A laminate for a display device according to any one of claims 1 to 12, wherein the base layer has an adhesive layer for attachment on the side opposite to the functional layer.

14. A laminate for a display device according to any one of claims 1 to 13, wherein the functional layer has a second functional layer on the side opposite to the base material layer.

15. A laminate for a display device according to any one of claims 1 to 14, wherein the base layer has a second functional layer on the side opposite to the functional layer.

16. Display panel and, A laminate for a display device according to any one of claims 1 to 15, positioned on the observer side of the display panel, A display device equipped with the following features.

Images