Title:
UNEVEN SURFACE SHEET, SCREEN, VIDEO DISPLAY SYSTEM, AND TRANSFER ROLLER
Document Type and Number:
WIPO Patent Application WO/2019/167972
Kind Code:
A1
Abstract:
Provided are: an uneven surface sheet for enabling acquisition of a screen in which, on a video displayed thereon, the relative front intensity is high, the left-right intensity ratio at 60° and the intensity difference ratio at 100° are low, and the amount of color shift is small; a screen including the uneven surface sheet; a video display system including the screen; and a transfer roller for producing the uneven surface sheet. The present invention relates to an uneven surface sheet having, at least on one surface, a plurality of ridges and grooves formed between adjacent two of the ridges. The ratio of the average height of the ridges to the average interval between the ridges (the average height/average interval) is 0.07-0.40. An average roughness obtained from a roughness curve in the extending direction of the ridges at top sections of the ridges, is 0.10-0.90 μm. In a case where the absolute frequency (T), of slope angles calculated from height data based on cross-sectional shapes each obtained by cutting the uneven surface sheet in a direction that is orthogonal to the extending direction of the ridges and that is the thickness direction of the uneven surface sheet, is calculated and a frequency percentage (%) is calculated from formula (A), the frequency percentage (%) is 98% or higher.
Inventors:
SUZUKI SHIGERU (JP)
Application Number:
PCT/JP2019/007413
Publication Date:
September 06, 2019
Filing Date:
February 27, 2019
Export Citation:
Assignee:
OJI HOLDINGS CORP (JP)
International Classes:
G02B5/02; B29C59/04; G03B21/60
Domestic Patent References:
| WO2004104695A1 | 2004-12-02 |
Foreign References:
| JP2016136254A | 2016-07-28 | |||
| JPH09159810A | 1997-06-20 | |||
| JP2009075366A | 2009-04-09 | |||
| JP2012226103A | 2012-11-15 | |||
| JP2000180967A | 2000-06-30 | |||
| JP2013171114A | 2013-09-02 | |||
| JP2012098595A | 2012-05-24 | |||
| JP2018014307A | 2018-01-25 | |||
| JP2016075899A | 2016-05-12 | |||
| JPH06148408A | 1994-05-27 |
Attorney, Agent or Firm:
SIKS & CO. (JP)
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