公开(公告)号：US11953710B2

公开(公告)日：2024-04-09

申请号：US17032483

申请日：2020-09-25

Applicant: DAI NIPPON PRINTING CO., LTD.

Inventor： Satoshi Emori ,  Takashi Kuroda

IPC: G02B5/30 ,  C09K19/34 ,  C09K19/38 ,  C09K19/54 ,  C09K19/58 ,  H10K50/11 ,  H10K50/84 ,  H10K50/858 ,  H10K50/86 ,  H10K85/00 ,  G02F1/13363 ,  H01L25/075

CPC classification number: G02B5/3083 ,  C09K19/3477 ,  C09K19/3491 ,  C09K19/3857 ,  C09K19/3861 ,  C09K19/544 ,  C09K19/586 ,  G02B5/3016 ,  H10K50/11 ,  H10K50/84 ,  H10K50/858 ,  H10K50/86 ,  H10K85/731 ,  G02F1/133633 ,  G02F1/133638 ,  H01L25/075

Abstract: The present invention provides a display panel in which deterioration of color tone may be suppressed regardless of the reflectance of the display element.
A display panel including a display element (A), a retardation layer (B) positioned upon the light emission surface side of the display element, and a polarizer (C) positioned upon the light emission surface side of the retardation layer, in which the retardation layer (B) has a λ/4 retardation layer (B1), and the in-plane retardation of the λ/4 retardation layer (B1) satisfies the following Condition 1:

The spectral reflectance of the display element is measured by an 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/4 retardation layer falls within the range of −4.6002x+119.24 nm or more and −4.6002x+129.24 nm or less.

公开(公告)号：US10133374B2

公开(公告)日：2018-11-20

申请号：US15029863

申请日：2014-10-23

Applicant: Dai Nippon Printing Co., Ltd.

Inventor： Shinichiro Takahashi ,  Akiyoshi Uchida ,  Shinichi Sakano ,  Minoru Nakanishi ,  Shinsuke Nakazawa ,  Satoshi Emori

IPC: B32B3/10 ,  G06F3/041 ,  C03C15/00 ,  C03C17/32 ,  H05K5/03 ,  B32B17/06 ,  G06F3/044

Abstract: The objective is to provide a cover glass having edge surfaces and a through-hole, formed with high external dimensional precision. The cover glass has a unit substrate comprising glass, and a resinforced portion containing a resin material provided on the edge surfaces of the unit substrate.