Large-screen definite LED display module and its encapsulation method

Abstract

The invention relates to a large screen resolution LED display module and the encapsulation method thereof. The invention is characterized in that the invention consists of a LED integrated display module, a frequency-conversion constant-temperature radiator and a digital signal circuit board. Each pixel in the LED integrated display module is planted on a bottom plate by an unpackaged red / green / blue color LED which can display the lightness above 256 levels. A regular inverted pyramid shaped optical focusing channel is arranged around each group of LED. The frequency-conversion constant-temperature radiator is provided with a plurality of silent fans; a temperature sensor is arranged at a temperature sensitive point in a cooling region. Temperature conducting glue tapes are affixed to the LED integrated display module. A LED power-supply circuit board is arranged on the other side of the radiator. The input signals of the digital signal circuit board are amplified by a triode to respectively control the power voltages of control triodes which control red, green, blue ground colors, so that the intensity of each ground color can be controlled; and the digital signal circuit board is arranged at the center of the radiator.

Description

technical field [0001] The invention relates to a large-screen high-definition light-emitting diode (LED) display module, which is used for household TV receivers, computer monitors, and indoor and outdoor large-screen image displays. Background technique [0002] With the rapid development of electronic technology, digital TV systems and electronic computer systems have been widely used in various industries, such as plasma (PDP), liquid crystal (LCD), projector projection (PJT) and LED screens and other display methods have also emerged as the times require , but the above-mentioned mainstream display methods are limited by such factors as brightness, screen size, excessive energy consumption, service life, packaging technology, and display accuracy. [0003] For example: PDP has excessive power consumption (a 40-inch screen consumes about 300W), short service life (about 20,000 hours, and the screen is easy to burn when playing fixed images), and screen size is limited (c...

AI Technical Summary

Problems solved by technology

[0002] With the rapid development of electronic technology, digital TV systems and electronic computer systems have been widely used in various industries, such as plasma (PDP), liquid crystal (LCD), projector projection (PJT) and LED screens and other display methods have also emerged as the times require , but the above-mentioned mainstream display methods are all limited by brightness, screen size, excessive energy consumption, service life, packaging technology and display accuracy.

[0003] For example: PDP has excessive power consumption (a 40-inch screen consumes about 300W), short service life (about 20,000 hours, and the screen is easy to burn when playing fixed images), and screen size is limited (currently the maximum is 100 inches, which cannot Seam assembly), too low brightness (unable to watch under outdoor light) and other problems

LCD has display speed problems (the liquid crystal body twists and resets cycle time), short service life (the backlight only has a lifespan of thousands of hours), low brightness (cannot be viewed under outdoor light), and screen size is limited (currently the maximum is 66 inches, which cannot be used without seam assembly) and other issues

PJT has problems such as poor image linearity (the screen depends on the curtain, and there are many interference factors), low brightness (cannot be viewed in brightly lit areas), short life of the backlight source (about 2000 hours), etc.

In view of the defects of the above products, there is another display method on the market at present, which is the LED display, but the LED display also has defects. The current products cannot be viewed at close range due to the large pixel particles, and the color difference is large, and the cost is high. Extremely high (costing millions of dollars), power consumption is huge (the power consumption of a single LED is about 0.5W, and when the actual display resolution is 1024*768, the power consumption is close to 1500 kilowatts), it is difficult to enter the room to watch at a close distance field

Images