Patent ID: 11953710
Assignee: DAI NIPPON PRINTING CO., LTD.
Field: Basic materials chemistry (Chemistry)
Classification: CPC G  C  H | IPC C  G  H

Claim 6:
7. The method according to claim 6, wherein the retardation layer (B) further includes a λ/2 retardation layer (B2), and the method further comprises the selection of a λ/2 retardation layer satisfying the following condition 2 as the λ/2 retardation layer (B2):
<Condition 2>
The spectral reflectance of the display element is measured by the SCI method, the average reflectance at wavelengths over the range of 400 nm or more and less than 550 nm is obtained as R1, the average reflectance at wavelengths over the range of 550 nm or more and less than 700 nm is obtained as R2, and when the value of R1/R2 is calculated and obtained as x, the in-plane retardation of the λ/2 retardation layer falls within the range of −9.2004x+238.47 nm or more and −9.2004x+258.47 nm or less.