METHOD FOR PRODUCING DISPLAY DEVICE

WIPO Patent Application WO/2022/167892

A1

The present invention provides a method for producing a high-definition display device which has light detection function. A method for producing a display device, the method comprising: a first step wherein a first pixel electrode and a second pixel electrode are formed; a second step wherein a light receiving/emitting film is formed on the first pixel electrode and the second pixel electrode; a third step wherein a first sacrificial film, which covers the light receiving/emitting film, is formed; a fourth step wherein the first sacrificial film and the light receiving/emitting film are etched, thereby forming a light receiving/emitting layer and a first sacrificial layer on the light receiving/emitting layer, while exposing the second pixel electrode; a fifth step wherein an EL film is formed on the first sacrificial layer and the second pixel electrode; a sixth step wherein a second sacrificial film, which covers the EL film, is formed; a seventh step wherein the second sacrificial film and the EL film are etched, thereby forming an EL layer and a second sacrificial layer on the EL layer; an eighth step wherein the first sacrificial layer and the second sacrificial layer are removed, while exposing the light receiving/emitting layer and the EL layer; and a ninth step wherein a common electrode, which covers the light receiving/emitting layer and the EL layer, is formed.

KUBOTA DAISUKE (JP)
HATSUMI RYO (JP)
NIIKURA YASUHIRO (JP)

PCT/IB2022/050610

August 11, 2022

January 25, 2022

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SEMICONDUCTOR ENERGY LAB (JP)

H05B33/10; G09F9/30; H01L27/32; H01L51/50

WO2021009621A1

2021-01-21

JP2003332051A	2003-11-21
JP2014197522A	2014-10-16
JP2012238580A	2012-12-06

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