Title:
DISPLAY PANEL, DISPLAY DEVICE, AND METHOD FOR SORTING PHASE DIFFERENCE LAYER OF DISPLAY PANEL
Document Type and Number:
WIPO Patent Application WO/2019/189561
Kind Code:
A1
Abstract:
Provided is a display panel with which it is possible to inhibit a decrease in hue, regardless of the reflectivity of a display element. A display panel, having a display element (A), a phase difference layer (B) disposed on the light emission surface side of the display element, and a polarizer (C) disposed on the light emission surface side of the phase difference layer. The phase difference layer (B) has a λ/4 phase difference layer (B1). The in-plane phase difference of λ/4 phase difference layer (B1) satisfies the following condition 1. The spectral reflectance of the display element is measured by the SCI method, and R1/R2 is calculated, with R1 being the average reflectance for 400 nm to below 500 nm, and R2 being the average reflectance for 550 nm to below 700 nm. When x is deemed to represent the value of R1/R2, the in-plane phase difference of the λ/4 phase difference layer is -4.6002x + 119.24 nm to -4.6002x + 129.24 nm inclusive.
Inventors:
EMORI SATOSHI (JP)
KURODA TAKASHI (JP)
KURODA TAKASHI (JP)
Application Number:
PCT/JP2019/013561
Publication Date:
October 03, 2019
Filing Date:
March 28, 2019
Export Citation:
Assignee:
DAINIPPON PRINTING CO LTD (JP)
International Classes:
H05B33/02; G02B5/30; G09F9/00; H01L27/32; H01L51/50
Domestic Patent References:
| WO2014073616A1 | 2014-05-15 | |||
| WO2002033451A1 | 2002-04-25 |
Foreign References:
| JP2017138401A | 2017-08-10 | |||
| JP2016192363A | 2016-11-10 | |||
| JP2013092632A | 2013-05-16 | |||
| JP2012027322A | 2012-02-09 | |||
| JP2003302503A | 2003-10-24 | |||
| US20160308170A1 | 2016-10-20 | |||
| US20160025913A1 | 2016-01-28 |
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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