IP Library › Granted Patent US 10,020,350
Granted Patent B2
US 10,020,350 · App. 15/203,934 · Granted Jul 10, 2018

Display panel and information processing device

Inventors: Shunpei Yamazaki (Tokyo, JP); Yoshiharu Hirakata (Kanagawa, JP); Tetsuji Ishitani (Kanagawa, JP); Kenichi Okazaki (Kanagawa, JP); Hajime Kimura (Kanagawa, JP)
Assignee: Semiconductor Energy Laboratory Co., Ltd.
H01L27/3232G02F1/1368G02F1/13306G02F1/133345G02F1/133553G02F1/136286G06F3/0412G06F3/0416H01L27/3244H01L29/7869G02F1/13338G02F2001/133626G02F2201/44G06F3/041
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Quick Facts
Patent No.
US 10,020,350
App. No.
15/203,934
Granted
Jul 10, 2018
Kind
B2
Abstract

A novel display panel that can be used as a reflective display panel in an environment with strong external light and as a self-luminous display panel in a dim environment, for example and that has low power consumption and is highly convenient or reliable is provided. The display panel includes a pixel and a substrate that supports the pixel. The pixel includes a first display element (e.g., a reflective liquid crystal element) that includes a reflective film having an opening as a first conductive film and a second display element (e.g., an organic EL element) that emits light to the opening.

Claims (11)

1. A method of manufacturing a display device comprising:

preparing an EL panel supported by a process substrate, the EL panel comprising a light emitting element and a first transistor electrically connected to the light emitting element;

preparing a liquid crystal panel supported by a substrate, the liquid crystal panel comprising a liquid crystal element and a second transistor electrically connected to the liquid crystal element;

separating the process substrate from the EL panel to expose an insulating film which covers the light emitting element; and

attaching the EL panel from which the process substrate separated to the liquid crystal panel with a bonding layer therebetween,

wherein the EL panel is attached to the liquid crystal panel so that the light emitting element and the liquid crystal element overlap with each other.

2. The method according to claim 1 , wherein the first transistor comprises a channel region which comprises an oxide semiconductor.

3. The method according to claim 1 , wherein the EL panel is attached to the liquid crystal panel by attaching the exposed insulating film to the bonding layer.

4. The method according to claim 1 , further comprising the step of:

transferring the EL panel onto a flexible panel to make the separated EL panel after separating the process substrate from the EL panel.

5. The method according to claim 1 , wherein the liquid crystal element is a reflective liquid crystal element.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 8, 2016
From: YAMAZAKI, SHUNPEI; HIRAKATA, YOSHIHARU; ISHITANI, TETSUJI; OKAZAKI, KENICHI; KIMURA, HAJIME
To: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
Reel/Frame 039372/0376 →
Priority Claims (2)
JP 2015-060000 · Mar 23, 2015 · national
JP 2015-115556 · Jun 8, 2015 · national
Continuity (2)
Continuation 15076927 · Mar 22, 2016
Related Publication 20160358986A1 · Dec 8, 2016