ANTI-REFLECTIVE FILM, POLARIZER, LIQUID CRYSTAL DISPLAY ELEMENT AND DISPLAY ELEMENT

• US 20090135492A1
• Filed: 03/30/2007
• Published: 05/28/2009
• Est. Priority Date: 08/11/2006
• Status: Abandoned Application

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Kusuda, Kouji, Nakai, Nobuhiko
• Application Number:
  US12/297,400
• Publication Number:
  US 20090135492A1
• Time in Patent Office: Days
• US Class Current: 359/601
• CPC Class Codes: G02B 1/11 Anti-reflection coatings
• CPC Class Codes: G02B 5/3025 Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state G02B5/3008, G02B5/3016 take precedence
• CPC Class Codes: G02F 1/133502 Antiglare, refractive index matching layers

Abstract

The present invention provides an antireflective film, a polarizer, a liquid crystal display element, and a display element, each of which makes it possible for light reflected on a surface to which stains have adhered and on a surface where the stains have remained even after being wiped off to be recognized as an almost achromatic color, thereby suppressing the stains having adhered to the surface such as fingerprint from being recognized to shine in blue. The reflective display film of the present invention is an anti-reflective film which is placed on a base material and reduces light reflected on a surface of the base material, wherein a reflection spectrum of the anti-reflective film has a bottom wavelength of less than 550 nm.

Claims

1. An anti-reflective film which is placed on a base material and reduces light reflected on a surface of the base material,

wherein a reflection spectrum of the anti-reflective film has a bottom wavelength of less than 550 nm.

2. The anti-reflective film according to claim 1,

wherein the reflection spectrum of the anti-reflective film has a bottom wavelength of more than 500 nm.

3. The anti-reflective film according to claim 1,

wherein the anti-reflective film is composed of a single layer.

4. The anti-reflective film according to claim 1,

wherein the anti-reflective film is composed of two or three layers.

5. The anti-reflective film according to claim 1,

wherein the anti-reflective film is composed of four or more layers.

6. The anti-reflective film according to claim 1,

wherein a surface of the anti-reflective film is provided with a light scattering anti-glare treatment.

7. A polarizer comprising the anti-reflective film of claim 1.

8. A liquid crystal display element comprising the polarizer of claim 7.

9. The liquid crystal display element according to claim 8,

wherein the anti-reflective film is arranged on an outermost surface of the liquid crystal display element.

10. A display element comprising the anti-reflective film of claim 1.

11. The display element according to claim 10,

wherein the anti-reflective film is arranged on an outermost surface of the display element.