OLED display panel and OLED display device including edge curved-surface display area

1. An OLED display panel, comprising:

a flat display area and an edge curved-surface display area; wherein the edge curved-surface display area is provided with an optical film layer, and the optical film layer is configured to reduce a light intensity of emergent light with a preset color in the edge curved-surface display area;

a light-emitting unit; and

an encapsulation layer,

wherein the encapsulation layer is disposed on a side of the light-emitting unit close to a light-emitting surface of the OLED display panel and the optical film layer is disposed on a side of the encapsulation layer away from the light-emitting unit, and

wherein the optical film layer comprises a reflection enhancing film; subsequent to an entrance of an incident light into the reflection enhancing film, a propagation distance d of the incident light in the reflection enhancing film satisfies a following formula: 2nd=(2k+1)λ/2, to increase a reflectivity of light with a wavelength of λ, where k=0, 1, 2 . . . , n is a refractive index of the reflection enhancing film.

2. The OLED display panel according to claim 1 , wherein the light-emitting unit comprises an anode, a light-emitting layer and a cathode; wherein the anode, the light-emitting layer, the cathode and the encapsulation layer are set in sequence, and the optical film layer is disposed on a side of the encapsulation layer away from the cathode.

3. The OLED display panel according to claim 1 , wherein subsequent to the entrance of the incident light into the reflection enhancing film, a propagation distance d of the incident light in the enhancing film satisfies a following formula: d=λ/4n.

4. The OLED display panel according to claim 1 , wherein a thickness of the reflection enhancing film decreases with an increase of an incident angle of light incident to the reflection enhancing film.

5. The OLED display panel according to claim 1 , wherein the optical film layer comprises a light absorbing film; wherein a transmittance of light that passes through the light absorbing film becomes lower as an incident angle of light incident to the light absorbing film becomes larger.

6. The OLED display panel according to claim 1 , wherein the optical film layer is provided with a first surface and a second surface opposite to each other; wherein the first surface is located on a side of the optical film layer close to the encapsulation layer, and at least one of the first surface and the second surface is a concave-convex surface.

7. The OLED display panel according to claim 6 , wherein a cross section of the first surface is a W shape, and a cross section of the second surface is a W shape.

8. The OLED display panel according to claim 1 , wherein the preset color comprises at least one color.

9. An OLED display device comprising the OLED display panel according to claim 1 .

10. The OLED display device according to claim 9 , further comprising: a touch panel located on the optical film layer.