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Driving method of LED spherical screen

A technology of a spherical screen and a driving method, which is applied to parts of color TVs, parts of TV systems, TVs, etc., and can solve problems such as uncontrollable screen effects, complicated processing methods, and unreal use of video images, etc.

Active Publication Date: 2021-04-23
CHENGDU CHENGDIAN GUANGXIN TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] In order to overcome the limitations of the projection conditions in the projection ball screen in the above-mentioned prior art, the present invention requires a corresponding curtain during projection, and the effect of the curtain is uncontrollable, or after the geometric correction of the image from the plane to the spherical surface, it is necessary to correct the overlapping Image fusion processing and consistent correction processing of display brightness and color are performed in the area. The processing method is more complicated, the pixel utilization rate is low, and the video image after projection or correction processing cannot be really applied to the LED spherical screen. Technical problems, provided A kind of driving method of LED spherical screen

Method used

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  • Driving method of LED spherical screen
  • Driving method of LED spherical screen
  • Driving method of LED spherical screen

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Experimental program
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Effect test

Embodiment 1

[0053] A method for driving an LED spherical screen, comprising the following steps:

[0054] Step 1. Divide the display sphere into top display area 1, bottom display area 2, and multiple side display areas 3, and calculate each display area based on the divided top display area 1, bottom display area 2, and multiple side display areas 3 Display parameters of the area, and expand it into a plane with LED beads as a unit, calculate the number of LED beads in each display area according to the arrangement of LED beads on the spherical latitude and longitude, each LED bead corresponds to a display pixel, and the LED light The beads are set on the LED light board;

[0055] Step 2. Generate the corresponding rectangular video image of each region according to the display parameters of each display region in step 1;

[0056] Step 3. The rectangular video image in step 2 is carried out to the geometric deformation of the arc surface, and the graphics card is used to perform image c...

Embodiment 2

[0063] A method for driving an LED spherical screen, comprising the following steps:

[0064] Step 1. Divide the display sphere into top display area 1, bottom display area 2, and multiple side display areas 3, and calculate each display area based on the divided top display area 1, bottom display area 2, and multiple side display areas 3 Display parameters of the area, and expand it into a plane with LED beads as a unit, calculate the number of LED beads in each display area according to the arrangement of LED beads on the spherical latitude and longitude, each LED bead corresponds to a display pixel, and the LED light The beads are set on the LED light board;

[0065] Step 2. Generate the corresponding rectangular video image of each region according to the display parameters of each display region in step 1;

[0066] Step 3. The rectangular video image in step 2 is carried out to the geometric deformation of the arc surface, and the graphics card is used to perform image c...

Embodiment 3

[0075] A method for driving an LED spherical screen, comprising the following steps:

[0076] Step 1. Divide the display sphere into top display area 1, bottom display area 2, and multiple side display areas 3, and calculate each display area based on the divided top display area 1, bottom display area 2, and multiple side display areas 3 Display parameters of the area, and expand it into a plane with LED beads as a unit, calculate the number of LED beads in each display area according to the arrangement of LED beads on the spherical latitude and longitude, each LED bead corresponds to a display pixel, and the LED light The beads are set on the LED light board;

[0077] Step 2. Generate the corresponding rectangular video image of each region according to the display parameters of each display region in step 1;

[0078] Step 3. The rectangular video image in step 2 is carried out to the geometric deformation of the arc surface, and the graphics workstation is used to perform ...

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Abstract

The invention discloses a driving method of an LED spherical screen, and relates to the technical field of LED display driving. The method comprises the following steps: 1, dividing a display spherical surface into a top display area, a bottom display area and a plurality of side display areas, and calculating display parameters of each display area; 2, generating a rectangular video image; 3, carrying out the geometric deformation from a plane to an arc surface on the rectangular video image in the step 2, and carrying out the image compression processing after deformation; 4, intercepting the video image subjected to compression processing in the step 3; 5, distributing the video images intercepted in the step 4 to the display areas divided in the step 1, and splicing the video images distributed in the display areas into a spherical video image picture capable of being continuously displayed. According to the invention, the video images are effectively utilized, the transition display effect among the display areas is smooth, no chromatic aberration exists between the display areas, the tolerance degree of the compressed image is increased, and the driving efficiency of the image is improved.

Description

technical field [0001] The invention belongs to LED display systems, and relates to a novel visual display system with LEDs as the main display unit, in particular to a driving method for LED spherical screens. Background technique [0002] The LED visual dome display system is mainly composed of LED display system, video processing system, video transmission system, mechanical structure components and distributed power supply, and is a visual dome with display function. Among them, the LED display body is mainly spliced ​​by LED display modules, and the mechanical structure components include the LED light board carrier based on the aluminum die-casting structure design, the glass fiber reinforced plastic skeleton and the shell decoration board based on the composite material design; the spherical screen video processing system and The video transmission system is also an important part of it. This system is composed of geometric deformation equipment, video sending equipme...

Claims

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Application Information

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IPC IPC(8): H04N5/262H04N5/268G09F9/33G09G3/32
CPCG09F9/33G09G3/32H04N5/2628H04N5/268
Inventor 解军王继岷贺卫东曾一雄王万勤
Owner CHENGDU CHENGDIAN GUANGXIN TECH
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