IP Library Granted Patent US 8,421,378
Granted Patent B2
US 8,421,378 · App. 13/233,947 · Granted Apr 16, 2013

Terminal device and computer-readable storage medium

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Quick Facts
Patent No.
US 8,421,378
App. No.
13/233,947
Granted
Apr 16, 2013
Kind
B2
Abstract

A terminal apparatus and a computer-readable storage medium capable of achieving reduction of power consumption by appropriately controlling lighting of a display unit are provided. A CPU lights or extinguishes a display unit after the end of an interrupt event in accordance with a lighting state (lighting, dim-lighting, being unlighted) of the display unit when the occurrence of the interrupt event is detected. It is therefore possible for the CPU to perform appropriate display control according to the lighting state when an interrupt event occurs.

Claims (14)

1. A terminal device for controlling a display unit to be in a lighting state of at least one of lighting at a first brightness, lighting at a second brightness darker than the first brightness, and being unlighted, the terminal device comprising:

a detection unit that detects a display state of the display unit, and detects a presence or absence of a standby state as the display state of the display unit; and

a lighting control unit that controls a lighting time of the display unit at the second brightness by referring to the display state detected by the detection unit when lighting of the display unit at the first brightness ends and lighting at the second brightness begins, and controls the display unit to light at the second brightness for a longer time than in cases other than the standby state when the standby state is detected by the detection unit.

2. The terminal device according to claim 1 , wherein the detection unit detects the presence or absence of a display state displaying an image as the display state of the display unit; and

wherein the lighting control unit controls the display unit to light at the second brightness for a longer time than in cases other than the image display state when the image display state is detected by the detection unit.

3. A non-transitory computer-readable storage medium that stores a program for implementing:

a function that detects a display state of a display unit as a lighting state of at least one of (i) lighting of a first brightness, (ii) lighting of a second brightness darker than the first brightness, and (iii) unlighted, and detects a presence or absence of a standby state as the display state of the display unit; and

a function that controls lighting time of the display unit at the second brightness by referring to the display state detected when the lighting of the display unit at the first brightness ends and lighting at the second brightness begins on a computer, and controls the display unit to light at the second brightness for a longer time than in cases other than the standby state when the standby state is detected.

4. A terminal device for controlling a display unit to be in a lighting state of at least one of lighting at a first brightness, lighting at a second brightness darker than the first brightness, and being unlighted, the terminal device comprising:

a detection unit that detects a display state of the display unit and detects a presence or absence of a display state displaying an image as the display state of the display unit; and

a lighting control unit that controls a lighting time of the display unit at the second brightness by referring to the display state detected by the detection unit when lighting of the display unit at the first brightness ends and lighting at the second brightness begins, and controls the display unit to light at the second brightness for a longer time than in cases other than the image display state when the image display state is detected by the detection unit.

5. A non-transitory computer-readable storage medium that stores a program for implementing:

a function that detects a display state of a display unit as a lighting state of at least one of (i) lighting of a first brightness, (ii) lighting of a second brightness darker than the first brightness, and (iii) unlighted, and detects a presence or absence of a display state displaying an image as the display state of the display unit; and

a function that controls a lighting time of the display unit at the second brightness by referring to the display state detected when the lighting of the display unit at the first brightness ends and lighting at the second brightness begins on a computer, and controls the display unit to light at the second brightness for a longer time than in cases other than the image display state when the image display state is detected.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Sep 11, 2014
From: NEC CORPORATION
To: LENOVO INNOVATIONS LIMITED (HONG KONG)
Reel/Frame 033720/0767 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Apr 22, 2013
From: NEC CASIO MOBILE COMMUNICATION LTD.
To: NEC CORPORATION
Reel/Frame 030258/0429 →