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DVD player capable of automatically adjusting display brightness

A technology of display brightness and automatic adjustment, which is applied to static indicators, cathode ray tube indicators, carrier indication/alarm devices, etc., and can solve the problems of inconvenient operation

Inactive Publication Date: 2006-07-12
LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Obviously, this passive operation is inconvenient and cannot satisfy

Method used

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  • DVD player capable of automatically adjusting display brightness
  • DVD player capable of automatically adjusting display brightness
  • DVD player capable of automatically adjusting display brightness

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Embodiment Construction

[0016] image 3 It is a hardware circuit diagram of the DVD player according to the present invention, as image 3 Shown, this DVD player comprises flash memory (Flash), is used for storing the program that operating system uses; It is used to store the status settings of the DVD player; the photosensitive sensor is used to sense the brightness of the external environment and convert it into an electrical signal for input to the MPEG decoding chip; the MPEG decoding chip adjusts the brightness signal according to the electrical signal from the photosensitive sensor, and passes the video output to the display.

[0017] Figure 4 It is the software control flowchart of the DVD player according to the present invention. Such as Figure 4 Shown, according to the software control process of DVD player of the present invention is as follows:

[0018] Video output / front panel display parameters pre-set in brightness control program; (S1)

[0019] Select an instruction to automa...

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Abstract

The invention discloses a DVD player of being able to adjust display brightness automatically which comprises: a Flash memory for storing programs used by operating system; a high speed dynamic random access memory (SDRAM) for dynamic data exchange with MPEG decoder chip; an electronic erasable read-only memory (EEPROM) for storing status settings of DVD player; a light sensor for sensing external surrounding brightness, converting to electronic signal and transferring to MPEG decoder chip; MPEG decoding chip for adjusting brightness parameter according to the electronic signal from light sensor and outputting video to monitor.

Description

technical field [0001] The invention relates to a multimedia playing system, in particular to a DVD player capable of automatically adjusting display brightness. Background technique [0002] Brightness refers to the ability of the display to display the change of light and dark of the picture. The multimedia playback system (such as DVD player) processes the picture itself through the digital chip, so that the place that needs to be bright is brightened, and the place that does not need to be bright is not bright, which not only improves the quality of the picture display It is also conducive to long-term operation, or the viewer can manually adjust (brightness, contrast, color, etc.) with the remote control or panel operation according to the visual experience, so that the image is clear and layered, and the color is bright. At present, when operating a DVD player, when the user feels that the picture or the brightness of the front panel does not match the surrounding envi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G11B33/10G09G5/00
Inventor 杨霖
Owner LEJIN GUANGDIAN ELECTRONIC CO LTD SHANGHAI
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