Granted Patent B2

US 12,271,241 · App. 17/224,226 · Granted Apr 8, 2025

Inventor: Shunpei Yamazaki (Tokyo, JP)

Assignee: Semiconductor Energy Laboratory Co., Ltd.

G06F1/26H02J7/0044H02J7/342H02J50/20H02J50/40H04B5/72H04B5/79H02J7/00034H02J7/0047

Abstract

Claims (53)

1. An electronic device comprising:

a housing;

a first display panel provided in the housing, the first display panel having a touch panel function;

a second display panel provided in the housing, the second display panel having a touch panel function;

a first battery provided in the housing;

a second battery provided in the housing; and

a transmitting and receiving portion provided in the housing,

wherein the first battery and the second battery are provided between an upper cover of the housing and a lower cover of the housing,

wherein, in a closed state of the electronic device, the first display panel and the second display panel overlap each other,

wherein, in the closed state, the first display panel comprises a region not overlapping with the second display panel,

wherein, in the closed state, the upper cover of the housing and the lower cover of the housing are in contact with each other,

wherein the transmitting and receiving portion comprises an antenna configured to wirelessly charge one of the first battery and the second battery,

wherein the first display panel comprises a first display portion,

wherein the second display panel comprises a second display portion,

wherein an entire surface area of the first display portion is larger than an entire surface a area of the second display portion,

wherein an area of the first battery is larger than an area of the second battery,

wherein the first display portion comprises a light-emitting element,

wherein the first battery is configured to supply electric power to the first display portion, and

wherein a power supply management circuit is configured to supply electric power from the first battery to the second battery.

2. The electronic device according to claim 1 , further comprising:

a speaker;

an operation key;

a sensor;

a memory medium reading portion;

a CPU; and

a communication module comprising a communication circuit,

wherein each of the first display panel and the communication module is configured to be able to be turned on or turned off independently.

3. The electronic device according to claim 1 , wherein the power supply management circuit is configured to supply electric power from the first battery to the second battery wirelessly.

4. The electronic device according to claim 1 , further comprising:

a third battery,

wherein the third battery overlaps with one of the first battery and the second battery.

5. An electronic device comprising:

a housing;

a first display panel provided in the housing, the first display panel having a touch panel function;

a second display panel provided in the housing, the second display panel having a touch panel function;

a first battery provided in the housing;

a second battery provided in the housing; and

a transmitting and receiving portion provided in the housing,

wherein the first battery and the second battery are provided between an upper cover of the housing and a lower cover of the housing,

wherein, in a closed state of the electronic device, the first display panel and the second display panel overlap each other,

wherein, in the closed state, the first display panel comprises a region not overlapping with the second display panel,

wherein, in the closed state, the upper cover of the housing and the lower cover of the housing are in contact with each other,

wherein the transmitting and receiving portion comprises an antenna configured to wirelessly charge one of the first battery and the second battery,

wherein the first display panel comprises a first display portion,

wherein the second display panel comprises a second display portion,

wherein an area of the first battery is larger than an area of the second battery,

wherein the first display portion comprises a light-emitting element,

wherein the first battery is configured to supply electric power to the first display portion,

wherein a power supply management circuit is configured to supply electric power from the first battery to the second battery, and

wherein the first display portion comprises a transistor comprising an oxide semiconductor in a channel formation region.

6. The electronic device according to claim 5 , further comprising:

a third battery,

wherein the third battery overlaps with one of the first battery and the second battery.

Priority Claims (2)

Continuity (4)

References Cited (400)