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Virtual LED display module based on four-color LED chips and four-time frequency displaying method

A technology of LED chips and display modules, applied in static indicators, identification devices, instruments, etc., can solve the problems of blurred display images, smearing, physical size of packaging and complex circuits, etc., to improve display resolution, improve physical Resolution, the effect of improving the display effect

Inactive Publication Date: 2018-06-29
XIAN ZHISHENG RUIXIN SEMICON TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, the immaturity of high-density electronic assembly technology of LED tubes in China, the physical size of LED tubes and electronic components packaging, the complexity of circuits, and the high cost have hindered the improvement of the physical resolution of display screens.
As for the sub-pixel virtual display, although relevant studies have shown that the number of pixels can be increased by 4 times through virtual display, or even a higher frequency doubling effect, but with the increase in the number of frequency doubling, it will bring blurred or dragged images. tail phenomenon
Therefore, in order to further improve the resolution of indoor small-pitch display screens, only relying on virtual display cannot achieve the desired effect.

Method used

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  • Virtual LED display module based on four-color LED chips and four-time frequency displaying method
  • Virtual LED display module based on four-color LED chips and four-time frequency displaying method
  • Virtual LED display module based on four-color LED chips and four-time frequency displaying method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0043] see figure 1 , figure 1 A schematic structural diagram of a virtual LED display module based on four-color LED chips provided by an embodiment of the present invention.

[0044] The virtual LED display module 10 includes: a four-color LED chip group 11 composed of several four-color LED chips 12; each four-color LED chip 12 includes at least four LED light-emitting units; Arranged, the horizontal spacing is D2, and the vertical spacing is D1. A plurality of LED light-emitting units form an M×N matrix, and the distance between any two adjacent LED light-emitting units is equal.

[0045]The virtual LED display module 10 also includes a virtual display control circuit 13 for controlling the LED display module to perform virtual display. The virtual display control circuit 13 has a storage chip and a driver chip, the storage chip is used to store the received display data, and the driver chip generates a corresponding driving current after receiving the display data to d...

Embodiment 2

[0054] see Figure 4 , Figure 4 A schematic structural diagram of a virtual LED display module based on four-color LED chips provided by another embodiment of the present invention.

[0055] The virtual LED display module 40 includes: a virtual display control circuit 41 and a four-color LED chip group 42 composed of several four-color LED chips.

[0056] The four-color LED chipset 42 is composed of four-color LED chips of different specifications, and each four-color LED chip includes at least four LED light-emitting units, and each includes four kinds of primary-color LED light-emitting units, which are red LED A light emitting unit, a green LED light emitting unit, a blue LED light emitting unit and a yellow LED light emitting unit. The four-color LED chips of various specifications are arranged in a 2a×2b matrix by 2a×2b LED light-emitting units, including a×b red LED units, a×b green LED units, and a×b blue LED units and a×b yellow LED units.

[0057] The four-color ...

Embodiment 3

[0062] The four-color LED chip of the embodiment of the present invention is an RGBY four-color integrated LED chip prepared based on GaN materials and using four colors of light-emitting materials. The four-color LED chip structurally includes light-emitting units of four primary colors, which are red LED light-emitting units, green LED light-emitting units, blue LED light-emitting units, and yellow LED light-emitting units, and also includes N-type electrodes and P-type electrodes. The surroundings of the four primary color light-emitting units are filled with isolation substances, forming an isolation layer between two adjacent LED light-emitting units.

[0063] see Figure 5 , Figure 5 A flow chart of a method for preparing a three-color strip LED chip provided by an embodiment of the present invention. Specifically, the preparation method of the four-color LED chip is as follows:

[0064] 501. Select a substrate.

[0065] In one embodiment of the present invention, s...

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Abstract

The invention relates to a virtual LED display module based on four-color LED chips and four-time frequency displaying method. The virtual LED display module comprises a four-color LED chip group consisting of four-color LED chips; each four-color LED chip comprises at least four LED luminous units; the four-color LED chips are arranged regularly, so that the LED luminous units form an M* N matrix; and distances among the optional adjacent LED luminous units are equal to one another. The RGBY four-color-integrated LED chips prepared from luminous materials in four colors on the basis of GaN materials are adopted, and are regularly arranged, connected and assembled into the four-color LED chip group, a small-distance four-color luminous unit matrix array which is formed by equidistant and uniform arrangement of all primary-color luminous units is formed, and the physical resolution is improved. Meanwhile, four-time scanning is carried out by a sub-pixel sharing method, virtual pixel displaying is realized, visual density is increased to four times, and image display definition is further improved.

Description

technical field [0001] The invention relates to the field of LED display screen display, in particular to a virtual LED display module based on four-color LED chips and a quadruple frequency display method. Background technique [0002] As a digital image display medium, the LED display can display the image information of the video image source in real time. There are two key factors that affect the display effect of the LED display: one is the resolution of the LED display; the other is the display color and gray level of the display. Indoor LED displays generally adopt small-pitch LED displays with high physical resolution, and the LED dot pitch is below P2.5, mainly including P2.5, P2.0, P1.8, P1.5 and other specifications. At present, the display color and grayscale standards of LED display screens can meet the requirements, while indoor LED display screens have always had higher requirements for resolution, hoping to achieve higher display resolution. [0003] There ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09F9/33G09G3/32
CPCG09F9/33G09G3/32
Inventor 毋雪
Owner XIAN ZHISHENG RUIXIN SEMICON TECH CO LTD
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