CN1547392A - A digital optical display back projection with online alteration of start-up display frame and method thereof - Google Patents
A digital optical display back projection with online alteration of start-up display frame and method thereof Download PDFInfo
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- CN1547392A CN1547392A CNA2003101040101A CN200310104010A CN1547392A CN 1547392 A CN1547392 A CN 1547392A CN A2003101040101 A CNA2003101040101 A CN A2003101040101A CN 200310104010 A CN200310104010 A CN 200310104010A CN 1547392 A CN1547392 A CN 1547392A
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Abstract
The invention discloses a kind of television which can change the start image online and the method, the user can display any image and text on the start image according to the demands. The computer VGA output interface is connected with the VGA input interface of the lightshow back projecting television, when the computer is powered on, it loads the image and text mode, makes the VGA input end of the lightshow and back projecting television display the preset image and text. The microprocessor of the lightshow back projecting television is controlled to act through the OSD menu of the television, reads the preset image and text on the VGA inputting end, and stores them in the EPROM. The television read the image and text file in the EPROM, and reduces the into R, G, and B data, they are inputted into the display driving circuit, the image and text can be displayed on the television screen, realizes the online change of the start image.
Description
[technical field]:
The present invention relates to a kind of a digital optical display back projection with online alteration of start-up display frame and method thereof, particularly this kind light display rear projector TV.
[background technology]:
At present, the method that light display rear projector's television startup picture is set is: the picture and text that will need to show solidify in advance in memory, start back CPU reads image, text and data in the memory, matrix to display pixel carries out described point, picture and text are presented on the video screen, there is very big deficiency in this light display rear projector's TV, in case behind the software write memory of light display rear projector's TV, just can not change picture displayed.If the user of light display rear projector's TV wishes that start-up picture can show the picture and text that oneself needs, just must get in touch with manufacturer, write TV software again.
[summary of the invention]:
Purpose of the present invention is exactly in order to overcome the above problems, a kind of a digital optical display back projection with online alteration of start-up display frame and method thereof is provided, the user need not be got in touch with manufacturer write TV software again, also any picture and text can be arranged to the display frame of starting shooting, satisfy the different needs of different user.
For achieving the above object, the present invention proposes a kind of a digital optical display back projection with online alteration of start-up display frame, comprise microprocessor and coupled memory, it is characterized in that: also comprise can with picture input interface, analog and digital video double nip circuit and the digital decoding circuit of computer picture output interface compatibility; Describedly can be input to the digital decoding circuit through analog and digital video double nip circuit with the picture signal of the picture input interface of computer picture output interface compatibility; The digital decoding circuit is connected with described microprocessor.
Described can be as one of lower interface with the picture input interface of computer picture output interface compatibility: VGA, SVGA, XGA.
The present invention also proposes the method for a kind of online change television boot-strap display frame, it is characterized in that comprising the steps: A) microprocessor of television set reads picture the computer from the picture input interface; B) picture that reads is handled, converted to the picture file that is suitable for storing, be stored in the memory; C) read the picture file that is stored in the memory during television startup; D) picture file that reads is reduced into R, G, B data, is input to display driver circuit, be presented at video screen.
The above scheme of the present invention has realized the random online change of start-up picture, makes user's oneself television set can have the advantage of start-up picture personalization, and does not need to connect miscellaneous equipment, and is simple to operate.
[description of drawings]:
Fig. 1 is a conspectus of the present invention;
Fig. 2 is the workflow diagram that picture and text of the present invention obtain;
Fig. 3 is the workflow diagram that start of the present invention shows;
[embodiment]:
Also the present invention is described in further detail in conjunction with the accompanying drawings below by specific embodiment.
As previously mentioned, basic design of the present invention is: computer VGA output interface is connected with light display rear projector's TV VGA input interface, is written into the picture and text pattern behind the computer booting, so that the VGA input of light display rear projector's TV shows predetermined picture and text.The predetermined picture and text of VGA input are read in the work of the microprocessor of the OSD menu control light display rear projector TV by light display rear projector's TV, are stored among the EPROM.Read during light display rear projector's television startup and be stored in the facsimile file among the EPROM and be reduced into R, G, B data, be input to display driver circuit, picture and text are presented at video screen, realize light display rear projector's television startup picture online change.This light display rear projector's TV has the advantage of start-up picture personalization, and does not need to connect miscellaneous equipment, and is simple to operate.
As shown in Figure 1, computer VGA output interface 1 is connected with the VGA input interface 3 of light display rear projector's TV through VGA connecting line 2, (ADI's (Analog Devices, analog and digital video double nip device Inc.)) is input to PixelWork1255 (the digital decoding generation chip of PixelWork company) to the VGA signal of the VGA input interface 3 of light display rear projector's TV through AD98874.The microprocessor 6 of light display rear projector's TV is connected with EPROM8 with PixelWork125 5 by iic bus 7.Described VGA connecting line 2 is to adopt 15 core connecting lines, and described iic bus 7 is SCL signal and SDA signal.Utilize the analog to digital converter (ADC) and phase-locked loop (PLL) technology of AD9887 interface, this is enough to guarantee that its ultimate resolution can reach 1280 * 1024 (SXGA) when 75Hz.
This embodiment is a core with the microprocessor 4 of light display rear projector's TV mainly, send control command to digital decoding chip PixelWork125 by iic bus, read the numerical digit code of PixelWork125 specified pixel, be stored among the EPROM, read behind light display rear projector's television startup and be stored in the facsimile file among the EPROM and be reduced into R, G, B data, be input to display driver circuit, picture and text are presented at video screen.The method that this employing extracting VGA input picture is made start-up picture is simple to operate, does not need to connect miscellaneous equipment.
Wherein the workflow obtained of picture and text comprises the steps:
1) each register port of initialization is provided with the iic bus address;
2) send control command, set current VGA Display input;
3) send control command, set the pixel that needs extracting
4) read the picture of specified pixel
5) deposit EPROM in
Whether the picture of specified pixel is read in above-mentioned workflow inspection successful, adopts following method: calculate and specify
The pixel size of the picture of pixel if surpass specified bytes, can be pointed out " NOT ENOUGH SPACE ", if do not surpass specified bytes, can deposit EPROM in, prompting " LOGO CAPTURE COMPLETE ".
The demonstration of light display rear projector's television startup comprises the steps:
1) each register port of initialization is provided with the iic bus address;
2) setting of inspection boot LOGO if invalidate is logo, shows that then default start shows picture and text;
3) otherwise, show the picture and text among the EPROM;
4) the start picture and text disappear after 30 seconds;
The CPU of above-mentioned light display rear projector's TV and other iic bus communicate from adopting the single host inquiry mode between the device.By the work of user, operate very directly perceived by OSD menu control CPU.
The foregoing description is that those skilled in the art can make the scheme of some changes on this basis, still belong to the scope of protection of the invention for convenience of explanation, as:
Described VGA interface can change into other can with the picture input interface of computer picture output interface compatibility, as one of lower interface: SVGA, XGA etc., even USB interface.
It is iic bus that connecting line between described microprocessor (6) and digital decoding circuit (5) and the memory (8) also is not limited to.
Described AD9887 chip and PixelWork125 chip also can adopt other equivalent analog and digital video double nip circuit chips and and the digital decoding circuit; Described memory is except that can also can being flash memory etc. for the EPROM.
The picture file of being stored is except that can also adopting extended formatting for the BIN file, as BMP etc.
Claims (10)
1, a kind of a digital optical display back projection with online alteration of start-up display frame, comprise microprocessor (6) and coupled memory (8), it is characterized in that: also comprise can with picture input interface (3), analog and digital video double nip circuit (4) and the digital decoding circuit (5) of computer picture output interface compatibility; Describedly can be input to digital decoding circuit (5) through analog and digital video double nip circuit (4) with the picture signal of the picture input interface (3) of computer picture output interface compatibility; Digital decoding circuit (5) is connected with described microprocessor (6).
2, a digital optical display back projection with online alteration of start-up display frame as claimed in claim 1 is characterized in that: described can be as one of lower interface with the picture input interface (3) of computer picture output interface compatibility: VGA, SVGA, XGA.
3, a digital optical display back projection with online alteration of start-up display frame as claimed in claim 2 is characterized in that: described VGA interface (3) can link to each other with computer by VGA connecting line (2), and described VGA connecting line (2) is 15 core connecting lines.
4, a digital optical display back projection with online alteration of start-up display frame as claimed in claim 1 or 2, it is characterized in that: the connecting line between described microprocessor (6) and digital decoding circuit (5) and the memory (8) is iic bus (7), and it comprises SCL holding wire and SDA holding wire.
5, a digital optical display back projection with online alteration of start-up display frame as claimed in claim 3 is characterized in that: described analog and digital video double nip circuit (4) and digital decoding circuit (5) are respectively AD9887 and PixelWork125; Described television set is light display rear projector's TV; Described memory is EPROM.
6, the method for a kind of online change television boot-strap display frame is characterized in that comprising the steps: A) microprocessor of television set reads picture the computer from the picture input interface; B) picture that reads is handled, converted to the picture file that is suitable for storing, be stored in the memory; C) read the picture file that is stored in the memory during television startup; D) picture file that reads is reduced into R, G, B data, is input to display driver circuit, be presented at video screen.
7, the method for online change television boot-strap as claimed in claim 6 display frame, the workflow that shows that it is characterized in that starting shooting comprises the steps: 1) each register port of initialization, the iic bus address is set; 2) setting of inspection boot LOGO does not have effective picture if this setting shows in the memory, shows that then default acquiescence start shows picture and text, otherwise the picture and text in the display-memory; 3) the start picture and text disappear after the arrival scheduled time.
8, as the method for claim 6 or 7 described online change television boot-strap display frames, it is characterized in that at described step B) in also comprise the steps: to calculate the pixel size of picture before the storage, if surpass specified bytes, can point out insufficient memory, if do not surpass specified bytes, just can deposit memory in, and point out picture to catch and finish.
9, as the method for claim 6 or 7 described online change television boot-strap display frames, it is characterized in that: when the microprocessor of light display rear projector's TV reads VGA port visual, be to adopt direct read pixel.
10, as the method for claim 6 or 7 described online change television boot-strap display frames, it is characterized in that: described television set is light display rear projector's TV, and its menu control is to finish by the OSD menu; The described picture file that is suitable for storing is the BIN file.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101040101A CN1547392A (en) | 2003-12-08 | 2003-12-08 | A digital optical display back projection with online alteration of start-up display frame and method thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNA2003101040101A CN1547392A (en) | 2003-12-08 | 2003-12-08 | A digital optical display back projection with online alteration of start-up display frame and method thereof |
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| CN1547392A true CN1547392A (en) | 2004-11-17 |
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| CNA2003101040101A Pending CN1547392A (en) | 2003-12-08 | 2003-12-08 | A digital optical display back projection with online alteration of start-up display frame and method thereof |
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100356776C (en) * | 2005-06-22 | 2007-12-19 | 四川长虹电器股份有限公司 | TV picture processing method |
| CN100428788C (en) * | 2006-07-14 | 2008-10-22 | 杭州国芯科技有限公司 | Method for transcribing opening picture |
| CN102131124A (en) * | 2011-04-26 | 2011-07-20 | 冠捷显示科技（厦门）有限公司 | Method for realizing individualized setting of TV (Television) startup picture and menu theme |
| CN105653283A (en) * | 2015-12-30 | 2016-06-08 | 深圳市金溢科技股份有限公司 | Embedded system terminal and boot LOGO picture displaying and changing method thereof |
| CN107562506A (en) * | 2017-08-07 | 2018-01-09 | 深圳市沃特沃德股份有限公司 | Start-up picture method to set up and device |
-
2003
- 2003-12-08 CN CNA2003101040101A patent/CN1547392A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100356776C (en) * | 2005-06-22 | 2007-12-19 | 四川长虹电器股份有限公司 | TV picture processing method |
| CN100428788C (en) * | 2006-07-14 | 2008-10-22 | 杭州国芯科技有限公司 | Method for transcribing opening picture |
| CN102131124A (en) * | 2011-04-26 | 2011-07-20 | 冠捷显示科技（厦门）有限公司 | Method for realizing individualized setting of TV (Television) startup picture and menu theme |
| CN105653283A (en) * | 2015-12-30 | 2016-06-08 | 深圳市金溢科技股份有限公司 | Embedded system terminal and boot LOGO picture displaying and changing method thereof |
| CN107562506A (en) * | 2017-08-07 | 2018-01-09 | 深圳市沃特沃德股份有限公司 | Start-up picture method to set up and device |
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