Title:
DISPLAY DEVICE
Document Type and Number:
WIPO Patent Application WO/2019/097795
Kind Code:
A1
Abstract:
This display device includes: a display circuit layer (72) having a first surface (S1) and a second surface (S2) and having a display area (DA) in which an image is displayed on the first surface (S1); a heat conduction sheet (76) overlapping the display circuit layer (72) under the second surface (S2); and an optical-type fingerprint sensor (84) which is disposed within the display area (DA) and under the heat conduction sheet (76) and which overlaps the display circuit layer (72). The heat conduction sheet (76) includes: a first area (A1) that overlaps the optical-type fingerprint sensor (84); and a second area (A2) that overlaps the display area (DA) around the optical-type fingerprint sensor (84). The heat conduction sheet (76) is formed of a heat conduction material in a shape having the light transmittivity necessary for sensing by the optical-type fingerprint sensor (84). In the second area (A2), the heat conduction sheet (76) does not transmit light and includes a heat conduction layer (82) formed of a heat conduction material.
Inventors:
ODAKA KAZUHIRO (JP)
Application Number:
PCT/JP2018/030946
Publication Date:
May 23, 2019
Filing Date:
August 22, 2018
Export Citation:
Assignee:
JAPAN DISPLAY INC (JP)
International Classes:
G09F9/30; G09F9/00; H01L23/12; H01L27/32; H01L31/12; H01L51/50; H05B33/02; H05B33/14; H05B33/22
Domestic Patent References:
| WO2017075469A1 | 2017-05-04 |
Foreign References:
| JP2017134828A | 2017-08-03 | |||
| JP2008504653A | 2008-02-14 | |||
| JP2006120555A | 2006-05-11 | |||
| JP2004227941A | 2004-08-12 | |||
| JP2009217206A | 2009-09-24 | |||
| JP2018087973A | 2018-06-07 | |||
| US20180121703A1 | 2018-05-03 |
Attorney, Agent or Firm:
HARUKA PATENT & TRADEMARK ATTORNEYS (JP)
Download PDF: