Backlight source capable of automatically adjusting backlight intensity for display

Abstract

The invention belongs to the field of backlights, and particularly relates to a backlight source capable of automatically adjusting the backlight intensity for a display. The backlight source comprises a back plate and a light-emitting plate, the light-emitting plate is installed on the surface of the back plate, a filter plate is fixedly connected to the surface of the light-emitting plate, a light effect enhancing medium is fixedly installed on the surface of the filter plate, and a light scattering plate is fixedly connected to the surface of the light effect enhancing medium. According tothe invention, ambient light intensity data is collected through an illumination sensor, an analog signal is processed and then transmitted to a single-chip microcomputer, then the analog signal is analyzed and calculated by a processing unit, a converter and an operational amplifier are controlled to work coordinately, and the voltage value of a transformer to the light-emitting plate is adjusted, so that the brightness of the light-emitting plate is changed, and a dimming effect is achieved, thus achieving autoadaptation to the environment, and avoiding damage to eyes of a user.

Description

technical field [0001] The invention relates to the field of backlight sources, in particular to a backlight source for displays with automatic adjustment of backlight intensity. Background technique [0002] The rise of the TFT industry in mainland China has attracted the investment attention of the entire upstream supporting material manufacturers. A series of TFT panel and LCD module investment cases in mainland China have made Japan, South Korea, and Taiwan, which have experience in upstream material production technology, all keep an eye on the pulse of TFT investment in mainland China. For the key material backlight industry, the competition among backlight module companies in Japan, South Korea, and Taiwan, including mainland China, has reached a fierce stage... It is especially worth mentioning that CCFL tape is even more brilliant and has gathered The world's top suppliers 3M., Nitto, Sekisui, Siwei, and South Korea's Tapes have entered mainland China. The huge CCF...

AI Technical Summary

Problems solved by technology

[0003] Existing backlights are installed in various electronic products, but the backlights of existing electronic products cannot automatically adjust the backlight intensity, so that the light intensity is too high to easily cause damage to the eyes, and the backlight is installed on the backboard, The existing ones are bonded by glue, and they are easy to loosen after long-term use, thus affecting their service life. At the same time, the heat dissipation effect of the backlight is not good.

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