CN203596165U

CN203596165U - Splicing circuit module in LCD large screen

Info

Publication number: CN203596165U
Application number: CN201320650093.3U
Authority: CN
Inventors: 黄光华
Original assignee: GUANGZHOU JINDING OPTOELECTRONIC EQUIPMENT Co Ltd
Current assignee: GUANGZHOU JINDING OPTOELECTRONIC EQUIPMENT Co Ltd
Priority date: 2013-10-22
Filing date: 2013-10-22
Publication date: 2014-05-14
Anticipated expiration: 2023-10-22

Abstract

The utility model relates to a splicing circuit module in an LCD large screen. The circuit comprises at least more than one signal input and S blocks. The S blocks can be divided into N horizontal direction blocks and M vertical direction blocks. Each block comprises a master control SCALER module which has a zoom function. Signals are input to the master control SCALER module of a first block. The master control SCALER module of the first block transmits the signals to the second horizontal block, and the last block on the horizontal direction inputs the signals to the second block on the vertical direction. And the blocks are connected in sequence in the way to the last block. The beneficial effects of the splicing circuit module are that a SCAL-ER timing sequence division technology of an LCD master control panel is fully used to enable splitting of images, and a large screen is made up by the module. The splicing circuit module is advantaged in that cost is not increased on the foundation of the display, cost is lowest in mosaic walls, operation is flexible, and the modules can be installed firstly and assembled later.

Description

Spliced circuit module in LCD giant-screen

Technical field

The utility model relates to a kind of LCD giant-screen, relates in particular to spliced circuit module in this LCD giant-screen.

Background technology

In LCD large-screen splicing, splicing system is mainly made up of three parts, large tiled display wall, projector array, control system.Wherein control system is core.

At present popular splicing control system mainly contains three types, the splicing system that hardware splicing system, software splicing system, software combine with hardware in the world.

Hardware splicing system is: show an independently picture by any screen display, that Real time dynamic display is installed completely owing to adopting hardware stitching image to process, simple to operate: but shortcoming is splicing small scale, is not suitable with the needs of multi-screen splicing, and institute's windowing is fixed as a screen size.

Software splicing system is: multi-screen display card is a kind of special display card, has another name called large screen splicing card; It can be realized multiple screen displays and show a large picture multihead display card, can make a PC support many display/TVs; On different screens, show different picture separately, several display/televisors again can the large picture of common combination one width; Can on a computing machine, polylith card be installed simultaneously in addition, number of screen is selected arbitrarily, ScreenMode arbitrary arrangement; But this mode must have PC support; And broadcast program source is restricted; That realizes image cuts apart that first cost is expensive, complicated operation, and wiring is many.Each display and PC directly line show that wall controller is except having the CPU of test pattern workstation, storer, outside IO interface and operating system. also there is multi-channel video, RGB IO interface, can be by multiple external video, after RGB analog signal figure, in imaging device imaging, convert again single channel analog signal output to giant-screen, and can on giant-screen, arbitrarily move, amplify and dwindle, realization is seamless spliced across screen multiwindow arbitrary dimension, flexible as operated at a large window, convenient, this process is also referred to as soft splicing, show that wall controller is also soft spelling controller.This specialized equipment that belongs to, expensive.

The comprehensively advantage of above two kinds of methods of the splicing system that software combines with hardware, overcomes its shortcoming.

From scheming l: the circuit module of each is made up of dedicated graphics processors; First outside vision signal is input to visual control system, matrix through visual control system switches, the vision signal that output needs, then the special image processor that enters into each display cuts demonstration (software is finished writing in advance, and display opsition dependent is put) to image.

Dedicated graphics processors has two problems: the firstth, belong to specialized equipment, and maintenance and cost are more expensive; The secondth, must realize by visual control system if open again wicket in the middle of the large-size screen monitors, cause expensively, be unfavorable for applying of large-size screen monitors.

Summary of the invention

The utility model technical issues that need to address have been to provide spliced circuit module in a kind of LCD giant-screen, are intended to solve the above problems;

In order to solve the problems of the technologies described above, the utility model is achieved through the following technical solutions:

Spliced circuit module of the present utility model comprises: at least more than one signal input, S piece;

A described S piece can be divided into N horizontal direction piece and M vertical direction piece; Described each comprises a master control SCALER module (liquid crystal display screen drive board) that has zoom function; Signal is input to the master control SCALER module in first: the master control SCALER module in described first is passed to second horizontal piece, last horizontal piece is input to second vertical piece again; Be connected to successively last piece.

Compared with prior art, the beneficial effects of the utility model are: the sequential isolation technique that makes full use of LCD master control borad SCALER, realize cutting apart of image, and be combined into a giant-screen, advantage is on the basis of display, not increase cost, is that in spelling wall, cost is minimum, and flexible operation, rear combination can be first installed.

Accompanying drawing explanation

Fig. 1 is the circuit module figure of each in LCD giant-screen in prior art.

Fig. 2 is the circuit module figure of each in the utility model.

Fig. 3 is master control SCALER module map in Fig. 2.

Fig. 4 is disposal route schematic diagram of the present utility model.

Embodiment

Below in conjunction with accompanying drawing and embodiment, the utility model is described in further detail:

As seen from Figure 2: spliced circuit module of the present utility model comprises: at least more than one signal input, S piece; A described S piece can be divided into N horizontal direction piece and M vertical direction piece; A described each master control SCALER module (liquid crystal display screen drive board) that includes zoom function; Signal is input to the master control SCALER module in first; Master control SCALER module in described first is passed to second horizontal piece, last horizontal piece is input to second vertical piece again; Be connected to successively last piece;

As seen from Figure 3: first the signal of inputting in master control SCALER module passes through the sampling of liquid crystal display screen drive board, the image 1/MXN on request needs being shown extracts, and is put into SDRAM, through the processing of SCALER; The signal input of described at least more than one can be one or more in VGA, HDMI, YpbPr.

As seen from Figure 4: method of the present utility model realizes by following steps: input signal enters the SCALER of master control borad, select the signal of input by telepilot: require channel sample to extract to be put into image buffer the image of input according to setting; Again by comprising that the sequential processings such as image quality processing, format conversion, scaled, sequential conversion drive screen; Described selects the signal of input to be by telepilot: VGA YPbPr HDMI; In menu, set the number of spelling screen; X/Y sets the number that will spell screen, is up to 10 × IO; Input the position that current screen will show in whole image.The image of input, through over-sampling, is then processed (mainly comprising image quality processing, format conversion, scaled, sequential conversion etc.) in image processor.After a series of processing of inside, digital video signal is transformed to and meets data layout and the sequential that LCD flat panel shows, drives liquid crystal display to show.

The above is only preferred implementation of the present utility model; should be understood that; for those skilled in the art; do not departing under the prerequisite of the utility model know-why; can also make some improvements and modifications, these improvements and modifications also should be considered as protection domain of the present utility model.

Claims

Spliced circuit module in 1.LCD giant-screen, comprising: at least more than one signal input, S piece; A described S piece can be divided into N horizontal direction piece and M vertical direction piece; It is characterized in that: described each comprises a master control SCALER module that has zoom function; Signal is input to the master control SCALER module in first; Master control SCALER module in described first is passed to second horizontal piece, last horizontal piece is input to second vertical piece again; Be connected to successively last piece.
2. according to spliced circuit module in the LCD giant-screen described in claim l, it is characterized in that: first the signal of inputting in master control SCALER module passes through the sampling of liquid crystal display screen drive board, the image 1/MXN on request needs being shown extracts, and is put into SDRAM, through the processing of SCALER.
3. according to spliced circuit module in the LCD giant-screen described in claim l or 2, it is characterized in that: the signal input of described at least more than one can be one or more in VGA, HDMI, YpbPr.