# US 2017/0256236 A1 · Portable electronic device and display method

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- Number: US 2017/0256236 A1
- Document ID: US20170256236A1
- Status: Published application
- Kind: A1
- Application number: 15/444,846
- Filed: 2017-02-28
- Published: 2017-09-07
- Earliest claimed: 2016-03-01
- Assignees: Seiko Epson Corporation
- Applicants: Seiko Epson Corporation
- Inventors: Kazuhiro SHIHO; Yoshihiro YAMAMURA
- Web page: https://patentgrep.com/patent/US20170256236A1

## CPC

- G09G 5/10: Intensity circuits
- G06F 1/163: {Wearable computers, e.g. on a belt}
- G06F 1/3265: {Power saving in display device}
- G06F 3/015: {Input arrangements based on nervous system activity detection, e.g. brain waves [EEG] detection, electromyograms [EMG] detection, electrodermal response detection}
- G09G 3/2003: {Display of colours (specific for liquid crystal displays G09G3/3607)}
- G09G 2320/0626: for control of overall brightness
- G09G 2330/021: Power management, e.g. power saving
- G09G 2354/00: Aspects of interface with display user
- G09G 2360/144: the light being ambient light
- Y02D 10/00: Energy efficient computing, e.g. low power processors, power management or thermal management
- G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00)
- G06F: ELECTRIC DIGITAL DATA PROCESSING (computer systems based on specific computational models G06N)
- Y02D: CLIMATE CHANGE MITIGATION TECHNOLOGIES IN INFORMATION AND COMMUNICATION TECHNOLOGIES [ICT], I.E. INFORMATION AND COMMUNICATION TECHNOLOGIES AIMING AT THE REDUCTION OF THEIR OWN ENERGY USE

## Abstract

A portable electronic device includes a display unit, and a processor that operates in a mode that improves lighting frequency or lighting brightness of lighting of the display unit during a period from sunset to sunrise than the lighting frequency or the lighting brightness of the lighting during a period from sunrise to sunset, and is able to adjust a start time or an end time of a period for improving the lighting frequency or the lighting brightness of the lighting in the mode, depending on input information.

## Claims

### Claim 1

A portable electronic device comprising:
a display unit; and
a processing unit that operates in a mode that improves lighting frequency or lighting brightness of lighting of the display unit during a period from sunset to sunrise than the lighting frequency or the lighting brightness of the lighting during a period from sunrise to sunset, and adjusts a start time or an end time of the period for improving the lighting frequency or the lighting brightness of the lighting in the mode, depending on input information.

### Claim 2 (depends on 1)

The portable electronic device according to claim 1, further comprising:
an operation unit,
wherein the input information includes information which is input through the operation unit.

### Claim 3 (depends on 1)

The portable electronic device according to claim 1,
wherein the input information includes information which is generated based on an output of a sensor.

### Claim 4 (depends on 1)

The portable electronic device according to claim 1, further comprising:
a communication unit,
wherein the input information includes information which is received through the communication unit.

### Claim 5 (depends on 1)

The portable electronic device according to claim 1,
wherein the input information includes information on environment where a user is located.

### Claim 6 (depends on 1)

The portable electronic device according to claim 1,
wherein the input information includes information on terrain or weather.

### Claim 7 (depends on 1)

The portable electronic device according to claim 1,
wherein the portable electronic device is attachable to a user's arm or wrist.

### Claim 8

A display method for a display unit of a portable electronic device, the method comprising:
operating in a mode that improves lighting frequency or lighting brightness of lighting of the display unit during a period from sunset to sunrise than the lighting frequency or the lighting brightness of the lighting during a period from sunrise to sunset, and adjusting a start time or an end time of the period for improving the lighting frequency or the lighting brightness of the lighting in the mode, depending on input information.

### Claim 9 (depends on 8)

The display method according to claim 8, further comprising:
manipulating,
wherein the input information includes information which is input in the manipulating.

### Claim 10 (depends on 8)

The display method according to claim 8,
wherein the input information includes information which is generated based on an output of a sensor.

### Claim 11 (depends on 8)

The display method according to claim 8, further comprising:
communicating,
wherein the input information includes information which is received in the communicating.

### Claim 12 (depends on 8)

The display method according to claim 8,
wherein the input information includes information on environment where a user is located.

### Claim 13 (depends on 8)

The display method according to claim 8,
wherein the input information includes information on terrain or weather.