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Large-screen definite LED display module and its encapsulation method

A technology of light-emitting diodes and display modules, which is applied in identification devices, cooling/ventilation/heating renovations, instruments, etc., can solve problems such as poor image linearity, limited display accuracy, and inability to watch at close distances, and achieve the goal of solving display problems Effect

Inactive Publication Date: 2008-05-28
陈慎安 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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  • Large-screen definite LED display module and its encapsulation method
  • Large-screen definite LED display module and its encapsulation method

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Embodiment Construction

[0030] Need to combine CRT manufacturing, LED manufacturing, IC manufacturing and other processes. First, clean and install the rack. When installing the rack, the tube cores need to be arranged according to the font (every 0.2mm in a group, and the diameter of each group is controlled at 0.1mm); then press welding and dispensing, follow the practice of white LED when dispensing, Put phosphor powder on each LED, arrange each group according to the three primary colors of R / G / B, and then wire (including the matrix); 0.1mm), after the concentrator is fixed, line the bottom of the PCB with 1mm thick heat-conducting ceramics (reserve the interface space), and finally make the interface.

[0031]After the module is manufactured, paste the radiator (2mm thick grid-shaped aluminum sheet) on the module with thermal conductive adhesive, then install the cooling fan group on the radiator in the upward direction of heat dissipation, and then install the temperature sensor on the back of ...

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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...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/33H05K7/20
Inventor 陈慎安
Owner 陈慎安
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