Screen brightness-adjusting device and method

A technology of screen brightness and adjusting device, which is applied to cathode ray tube indicators, instruments, static indicators, etc., can solve the problems of shortening standby time and large power consumption of portable electronic devices, so as to prolong standby time and improve backlight brightness. Effect

Inactive Publication Date: 2010-03-17
SHENZHEN FUTAIHONG PRECISION IND CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, for a portable electronic device that is used outdoors for a long time, the brightness sensing device will automatically increase the brightness of the screen, which will inevitably cause a large power consumption of the portable electronic device and shorten the standby time

Method used

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  • Screen brightness-adjusting device and method
  • Screen brightness-adjusting device and method

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Embodiment Construction

[0011] The invention discloses a screen brightness adjusting device, which is suitable for adjusting the screen brightness of portable electronic devices such as mobile phones or personal digital assistants (personal digital assistants, PDAs). In this embodiment, a mobile phone is taken as an example for description.

[0012] See figure 1 The screen brightness adjustment device 10 includes a photosensitive module 11, a storage module 12, a brightness adjustment module 13, a backlight module 14, a switch 15, a rechargeable battery 16, a solar battery 17 and a brightness comparison module 18 .

[0013] The rechargeable battery 16 and the solar battery 17 are electrically connected to the backlight module 14 through the switch 15. The input end of the brightness comparison module 18 is electrically connected to the photosensitive module 11 and the storage module 12, and the output end is electrically connected to the brightness adjustment module 13 and the switch 15. The photosensit...

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Abstract

The invention provides a screen brightness-adjusting device comprising a sensing module, a storage module, a charging battery, a solar battery, a transfer switch, a backlight module and a brightness-comparing module. The sensing module is used for sensing a practical brightness value of external environment; the storage module is used for storing a preset standard brightness value; the backlight module is electrically connected with the charging battery or the solar battery by the transfer switch; the input end of the brightness-comparing module is electrically connected with the sensing module and the storage module; the output end of the brightness-comparing module is electrically connected with the transfer switch; and the brightness-comparing module is used for comparing the practicalbrightness value with the standard brightness value, converting a comparison result into a corresponding electric signal and sending the electric signal to the transfer switch. In addition, the invention also provides an adjusting method of the screen brightness-adjusting device.

Description

Technical field [0001] The invention relates to a screen brightness adjustment device and an adjustment method, in particular to a screen brightness adjustment device and an adjustment method applied to a portable electronic device. Background technique [0002] With the continuous update and development of technology, portable electronic devices such as mobile phones or personal digital assistants (PDAs) have been widely used in people's daily lives. [0003] Generally, portable electronic devices are used in different light environments. When the portable electronic device is used in a low-light environment, the screen feels bright and dazzling, but when it is used under the sunlight during the day, the screen is dim and fuzzy. Therefore, the industry usually installs a brightness sensing device on the portable electronic device to automatically adjust the screen brightness. [0004] However, for portable electronic devices that are used outdoors for a long time, the brightness s...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34G09G5/10
CPCG09G2320/0626G09G2330/02G09G3/3406G09G2360/144
Inventor 郑森祥
Owner SHENZHEN FUTAIHONG PRECISION IND CO LTD
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