JPH09218660A - Electronic equipment - Google Patents

Abstract

PROBLEM TO BE SOLVED: To keep comfortable display environment and to prevent trouble for setting by a user each time and needless power consumption by providing a sensor detecting environment state information and adjusting automatically brightness of back light by detected output of this sensor. SOLUTION: An environment state sensor 1 detects information of environment. When information of environment is obtained by the environment state sensor 1, a control signal for adjusting brightness of the back light by a brightness signal control block 4 is supplied to a power control block 5 as power information. The power control block 5 performs power control for adjusting brightness of the back light 7 by a control signal from the brightness signal control block 4. Consequently, as the back light 7 of a display device 6 is controlled for lighting with optimum brightness suitable for environment information, the display device 6 is made easy to watch. That is, as brightness required for environment can be automatically set, optimum brightness of the back light is obtained, using needless power is prevented.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a display unit of a backlit electronic device.

[0002]

2. Description of the Related Art Conventionally, in an electronic apparatus in which a display device has a backlight, the brightness of the backlight may need to be adjusted depending on various environments.

However, in reality, the brightness is adjusted by the operator according to the environment in which the electronic device is used.

On the other hand, in the case of a system in which the brightness can be automatically changed on the electronic device side without an operator's operation, in order to save power consumption in the battery-driven electronic device, etc. It is adjusted according to the operating state and the remaining capacity of the battery. Therefore, the conventional brightness adjustment function of the backlight contributes to the performance of the electronic device and also functions depending on the operating state of the electronic device itself.

[0005]

However, the adjustment of the brightness of the backlight of the display device of the electronic equipment is not limited to the case where it operates according to the request from the above system, and the necessary brightness depends on the environmental condition. Change.

However, the brightness adjustment in response to a request from the electronic device system operates only in a state where the electronic device permits, and the operating environmental condition is not considered in the setting condition. Therefore, the power is wasted, and at the same time, the operator of the electronic device needs to adjust the brightness according to the environment.

The object of the present invention is to judge the optimum brightness of the backlight and automatically set the optimum brightness to provide a comfortable display environment, and the operator's troublesomeness and wasteful consumption. An object is to provide an electronic device capable of preventing electric power.

[0008]

In order to solve the above-mentioned problems, the present invention provides an electronic device equipped with a display device with a backlight, which includes a sensor for detecting environmental condition information such as temperature and light intensity of the electronic device. The backlight of the display device is automatically adjusted according to the detection output of the sensor.

[0009]

Embodiments of the present invention will be described below with reference to the drawings.

FIG. 1 is a block diagram showing the configuration of an electronic device according to the present invention.

Reference numeral 1 is an environmental condition sensor such as a light quantity sensor 2 and a temperature sensor 3, 4 is a brightness signal control block, 5 is a power control block, 6 is a display device, and 7 is a backlight.

The electronic apparatus of the present invention has the display device 6 with the backlight 7 and has a function of adjusting the brightness of the backlight 7.

The environmental condition sensor 1 detects environmental information, and outputs a control signal based on the information from the sensor 1. Then, after acquiring the information on the environmental condition by the sensor 1, the brightness of the backlight 7 is optimally adjusted.

Various types of environment information can be set. For example, the brightness of the environment in which the electronic device is used, the temperature of the display device in use, etc. can be mentioned. In addition, if it is possible to obtain the environmental condition of the electronic device, use it as environmental information. To do.

In addition to the environmental information, it is also conceivable to simultaneously acquire the operating state and adjust the brightness of the backlight in accordance with the environmental state.

When the environmental information is obtained by the sensor 1,
A control signal for adjusting the brightness of the backlight 7 by the brightness signal control block is supplied to the power control block 5 as power information. The power control block 5 performs power control for adjusting the brightness of the backlight 7 according to the control signal from the brightness signal control block 4. As a result, the backlight 7 of the display device 6 is controlled to be turned on at the optimum brightness suitable for the environmental information, so that the display device 6 can be easily viewed.

[0017]

As described above, according to the present invention,
Since the required brightness can be automatically set depending on the environment, the optimum brightness of the backlight can be obtained and useless electric power is not used. Since the brightness of the backlight can be automatically set, it is not necessary for the operator to set the brightness each time, and unnecessary operations for the operator can be reduced. By configuring the system in combination with various states of the electronic device, such as the contrast information of the display device, the state of the operating power supply, the operating state of the electronic device, it is possible to obtain more optimal backlight brightness with less waste.

[Brief description of drawings]

FIG. 1 is a block diagram showing a configuration of the present invention.

[Explanation of symbols]

 1 environmental condition sensor 2 light intensity sensor 3 temperature sensor 4 brightness signal control block 5 power control block 6 display device 7 backlight

Claims (1)

[Claims] 1. An electronic device having a display device with a backlight, wherein a sensor for detecting environmental condition information such as temperature and light amount of the electronic device is provided, and the brightness of the backlight of the display device is detected by the output of the sensor. An electronic device characterized in that it is configured to automatically adjust.