PATENT CLAIM ANALYSIS

Application Number: 15895140
Application Type: Utility
Filing Date: 2018-02
Publication Date: 2018-10
Patent Classification: ["359", "454000"]

Abstract:
Provided is a projection screen that can effectively diffuse incident light coming from a wide range of angles in the transverse direction and the longitudinal direction and can provide a wide viewing angle even if the projection screen is applied to a large-sized screen. Disclosed is a projection screen including a light diffusion control plate, in which when a first direction and a second direction orthogonally intersecting each other are assumed to be on the surface of the light diffusion control plate, and when the incident angle of the light incident to the light diffusion control plate is defined such that an angle parallel to the normal line to the surface of the light diffusion control plate is defined as 0°, in a case in which the luminance of diffused light obtainable when light is incident at an incident angle of 0° is designated as L 0 ; the luminance of diffused light obtainable when light is incident at a predetermined incident angle along the first direction is designated as L 1 ; and the luminance of diffused light obtainable when light is incident at a predetermined incident angle along the second direction is designated as L 2 , there exist a first direction and a second direction, in which L 0 , L 1 , and L 2  always satisfy the following relational expressions (1) and (2): L 1 ≥0.25× L 0   (1) L 2 ≥0.25× L 0   (2)

Claim (Index 4):
The projection screen according to  claim 1 , wherein the light diffusion control plate is formed by laminating a plurality of sheets of a light diffusion control film, and the number of laminated sheets of the light diffusion control film is adjusted to 4 or less.

Metadata:
- Claim Count in Document: 7.0
- Percentile: 88.0
- Lexical Diversity: 3.06024
- Patent Class: 359.0
- Transitional Phrase Type: none
- Component Type: 0
- Foreign Priority: True
- Related Applications: ['15894316', '14655696', '15513059', '14774678', '14372269']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.8454258679061724
- 35 USC 102 Novelty (BERT): 0.5490588811736193
- Combined Prediction Score: 0.8157891692329171
- Mean Citation Score: 334.53474199999994
- Max Citation Score: 451.10803
- Similarity Product: 353.8326501109034

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 1
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test