CN107343213A - A kind of method of compatible tconless screens and standard screen - Google Patents
A kind of method of compatible tconless screens and standard screen Download PDFInfo
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- CN107343213A CN107343213A CN201710697027.4A CN201710697027A CN107343213A CN 107343213 A CN107343213 A CN 107343213A CN 201710697027 A CN201710697027 A CN 201710697027A CN 107343213 A CN107343213 A CN 107343213A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/41—Structure of client; Structure of client peripherals
- H04N21/426—Internal components of the client ; Characteristics thereof
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N21/00—Selective content distribution, e.g. interactive television or video on demand [VOD]
- H04N21/40—Client devices specifically adapted for the reception of or interaction with content, e.g. set-top-box [STB]; Operations thereof
- H04N21/43—Processing of content or additional data, e.g. demultiplexing additional data from a digital video stream; Elementary client operations, e.g. monitoring of home network or synchronising decoder's clock; Client middleware
- H04N21/443—OS processes, e.g. booting an STB, implementing a Java virtual machine in an STB or power management in an STB
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Software Systems (AREA)
- Stored Programmes (AREA)
Abstract
The present invention relates to television screen module software controlling technique field, it discloses a kind of method of compatible tconless screens and standard screen, solves the problems, such as the existing increase cost of the compatible scheme in conventional art and being mistaken because of artificial selection screen staggering easily causes running software to malfunction.This method can be summarized as：The I/O port of master chip is reserved in hardware design, to carry out screen type detection；On the mainboard of collocation standard screen and on the mainboard of collocation Tconless screens, the state of reserved I/O port is designed by pull-up circuit or pull-down circuit respectively, makes its state opposite；In program operation process, by reading reserved I/O port state, judged by I/O port state currently used for tconless screens or standard screen, if Tconless screens, main program loads Tcon programs；If currently used for standard screen, Tcon programs are not loaded with.The present invention is applied to the Design of Compatibility of TV screen module.
Description
Technical field
The present invention relates to television screen module software controlling technique field, and in particular to a kind of compatible tconless screens and mark
The method of quasi- screen.
Background technology
TV is mainly made up of as display device mainboard, power panel, panel module three parts.The effect of TCON modules is handle
After VBO the or LVDS input image data signals processing that mainboard is sent, ISP the or EPI signals of liquid crystal display matching are converted into
It is directly upper to shield.For standard screen, Tcon is module integrated relatively high in screen end, cost.And Tconless screens refer to, screen
The not integrated Tcon modules in end, Tcon modules are integrated or by Tcon integrated chips inside MCU by TV motherboard, purchase screen resource
Advantage of lower cost.
There has been the scheme being much incorporated into the Tcon chips of screen inside mainboard or master chip in each chip producer.It is and each
Consideration of the individual complete-system vendor based on complete machine cost, application of the Tconless screens in TV production process are more and more common.For
For same master chip scheme, Tconless screens are mixed with standard screen and recurrent.And Tconless screens and mark
Whether differentiation of the quasi- screen on software flow be mainly with needing to load Tcon chip programs in mainboard software operation.
In the prior art, two methods of generally use use while ensureing Tconless screens and standard screen：
Method one, many complete-system vendors can separate the major software of the major software and standard screen of adaptation Tconless screens, this
Two version softwares of sample are safeguarded jointly had both added software maintenance cost, added production cost again；
Method two, special identifier is added in screen joins file, the mark has been put in the screen ginseng of Tconless screens, standard screen
Screen ginseng in mark is resetted, do the differentiation of software flow by reading the mark in software running process；So doing can
The compatibility of software is improved, but mistake is selected when artificial selection screen ginseng, software will mistakenly load some Tcon correlations
Thing, cause running software to malfunction.
So how can just accomplish with same TV ROMPaq, while fit standard screen and Tconless screens, and
Run-time error will not occur because of wrong screen ginseng is artificially falsely dropped, be an Important Problems of current businessman's concern.
The content of the invention
The technical problems to be solved by the invention are：A kind of method for proposing compatible tconless screens and standard screen, solve
Increase cost existing for compatible scheme in conventional art and being mistaken because of artificial selection screen staggering easily causes running software to malfunction
The problem of.
The technical solution adopted for the present invention to solve the technical problems is：
A kind of method of compatible tconless screens and standard screen, including：
A. the I/O port of master chip is reserved in hardware design, to carry out screen type detection；
B. on the mainboard of collocation standard screen, pull-up circuit or pull-down circuit are either designed by reserved I/O port is vacant,
Ensure that the IO reserved in step a is input high level or input low level state；
C. on the mainboard of collocation Tconless screens, by reserved I/O port periphery same design pull-up circuit or drop-down electricity
Road, and ensure reserved I/O port input voltage state on the mainboard of Tconless screens and the IO on step b Plays screen mainboards
Mouth input voltage state is opposite；
D. in program operation process, by reading reserved I/O port state, and judge current I/O port state whether with step c
The I/O port state consistency of middle carrying Tconless screen motherboard designs；If consistent, currently used for Tconless screens, master is judged
Program loads Tcon programs；Conversely, then judging currently used for standard screen, Tcon programs are not loaded with.
Optimize as further, in step a, the reserved I/O port can be configured to the pin of input for any one.
Optimize as further, in step d, when Tcon programs are loaded, it is corresponding that loading is selected according to current screen participation in the election
Tcon programs.
Optimize as further, in step d, also include when Tcon programs are loaded, selected and added according to current screen participation in the election
The corresponding voltage data shielded is carried to PMIC chips.
Optimize as further, in step c, the I/O port input voltage for ensureing to reserve on the mainboard of Tconless screens
State is with the I/O port input voltage state on step b Plays screen mainboards on the contrary, referring to：
If the I/O port input voltage state is high level state on standard screen mainboard, reserved on the mainboard of Tconless screens
I/O port input voltage state be low level state；If the I/O port input voltage state is low level state on standard screen mainboard,
The I/O port input voltage state then reserved on the mainboard of Tconless screens is high level state.
The beneficial effects of the invention are as follows：
Control whether to load Tcon chip programs and PMIC magnitudes of voltage by the judgement of hardware I/O port state, to complete a little
Shield work.Operating efficiency is greatly improved, reduces influence caused by human factor.
Embodiment
The present invention is directed to propose a kind of method of compatible tconless screens and standard screen, solves the compatible parties in conventional art
Increase cost existing for case and because artificial selection screen staggering is mistaken easy the problem of causing running software to malfunction.
In specific implementation, the method for the heretofore described compatible tconless screens of kind and standard screen, including following step
Suddenly：
A. the I/O port of master chip is reserved in hardware design, to carry out screen type detection；
B. on the mainboard of collocation standard screen, pull-up circuit or pull-down circuit are either designed by reserved I/O port is vacant,
Ensure that the IO reserved in step A is input high level or input low level state；
C. on the mainboard of collocation Tconless screens, by reserved I/O port periphery same design pull-up circuit or drop-down electricity
Road, and ensure reserved I/O port input voltage state on the mainboard of Tconless screens and the IO on step b Plays screen mainboards
Mouth input voltage state is opposite；
D. in program operation process, by reading reserved I/O port state, and judge current I/O port state whether with step c
The I/O port state consistency of middle carrying Tconless screen motherboard designs；If consistent, currently used for Tconless screens, master is judged
Program loads Tcon programs；Conversely, then judging currently used for standard screen, Tcon programs are not loaded with.
Embodiment：
Present case using stars at dawn science and technology MST648 chips be used as host CPU, collocation screen for Youda Tconless screens with
LG standard screen.To realize that tconless screens are compatible with standard screen, the technological means that the present embodiment uses is as follows：
1st, the SAR1 mouths of master chip are reserved during hardware motherboard design, for doing the detection of Tconless screens and standard screen.
2nd, arrange in pairs or groups on the mainboard of standard screen, SAR1 mouths is vacant, because the MST648 chip internals in SAR1 mouths have drop-down
Circuit, therefore when the I/O port is vacant, voltage is low level；
3rd, arrange in pairs or groups on the mainboard of Tconless screens, SAR1 mouth periphery design pull-up circuits ensure in Tconless screens
The I/O port input voltage state reserved on mainboard is height, and the I/O port input voltage state is low on standard screen mainboard, just phase
Instead.
4th, in bootstrap initialization procedure, get_gpio_level methods that software is provided by chip manufacturer are read
Take SAR1 mouth states.For being adapted to the mainboard of Tconless screens, the SAR1 mouths state read is non-zero, and opposite,
For the mainboard of fit standard screen, the SAR1 mouth states read are zero.
5th, when it is non-zero that I/O port state is determined in step 4, what this when, can thought currently to carry is
Tconless screens, main program loads Tcon programs to the Tcon modules of chip internal by way of ISP, and the side for passing through IIC
Formula loads screen voltage parameter into PMIC power management chips
Opposite, when it is zero that I/O port state is determined in step 4, then it is assumed that currently used is standard screen, now not
Load the related flows of Tcon.
Claims (5)
1. a kind of method of compatible tconless screens and standard screen, it is characterised in that including：
A. the I/O port of master chip is reserved in hardware design, to carry out screen type detection；
B. on the mainboard of collocation standard screen, reserved I/O port vacant either design pull-up circuit or pull-down circuit ensure
The IO reserved in step a is input high level or input low level state；
C. on the mainboard of collocation Tconless screens, the I/O port periphery same design pull-up circuit or pull-down circuit that will reserve,
And ensure that I/O port input voltage state and the I/O port on step b Plays screen mainboards reserved on the mainboard of Tconless screens are defeated
It is opposite to enter voltage status；
D. in program operation process, by reading reserved I/O port state, and judge current I/O port state whether with being taken in step c
Carry the I/O port state consistency of Tconless screen motherboard designs；If consistent, judge currently used for Tconless screens, main program
Load Tcon programs；Conversely, then judging currently used for standard screen, Tcon programs are not loaded with.
2. the method for a kind of compatible tconless screens as claimed in claim 1 and standard screen, it is characterised in that in step a, institute
State the pin that reserved I/O port can be configured to input for any one.
3. the method for a kind of compatible tconless screens as claimed in claim 1 and standard screen, it is characterised in that in step d,
When loading Tcon programs, the Tcon programs according to corresponding to loading is selected in current screen participation in the election.
4. the method for a kind of compatible tconless screens as claimed in claim 1 and standard screen, it is characterised in that in step d,
Also include when loading Tcon programs, the voltage data of screen corresponding to load is selected according to current screen participation in the election to PMIC chips.
5. the method for a kind of compatible tconless screens as claimed in claim 1 and standard screen, it is characterised in that in step c, institute
It is defeated to state the I/O port input voltage state and the I/O port on step b Plays screen mainboards for ensureing to be reserved on the mainboard of Tconless screens
Enter voltage status on the contrary, referring to：
If the I/O port input voltage state is high level state on standard screen mainboard, the IO reserved on the mainboard of Tconless screens
Mouth input voltage state is low level state；If the I/O port input voltage state is low level state on standard screen mainboard,
The I/O port input voltage state reserved on the mainboard of Tconless screens is high level state.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710697027.4A CN107343213A (en) | 2017-08-15 | 2017-08-15 | A kind of method of compatible tconless screens and standard screen |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710697027.4A CN107343213A (en) | 2017-08-15 | 2017-08-15 | A kind of method of compatible tconless screens and standard screen |
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| CN107343213A true CN107343213A (en) | 2017-11-10 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201710697027.4A Pending CN107343213A (en) | 2017-08-15 | 2017-08-15 | A kind of method of compatible tconless screens and standard screen |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114446213A (en) * | 2020-11-02 | 2022-05-06 | 联发科技（新加坡）私人有限公司 | Mainboard, display device, display method and computer readable storage medium |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020101397A1 (en) * | 2001-01-29 | 2002-08-01 | Hitachi, Ltd. | Liquid crystal display |
| CN101986381A (en) * | 2010-11-04 | 2011-03-16 | 中兴通讯股份有限公司 | Method and device for recognizing liquid crystal display screen and terminal |
| CN202102693U (en) * | 2011-05-19 | 2012-01-04 | 广州视源电子科技有限公司 | Selection circuit compatible with power supply voltage of different liquid crystal screens |
| CN106878814A (en) * | 2017-03-22 | 2017-06-20 | 四川长虹电器股份有限公司 | The system and method for compatible LCD TV standard screen and Tconless screens |
-
2017
- 2017-08-15 CN CN201710697027.4A patent/CN107343213A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20020101397A1 (en) * | 2001-01-29 | 2002-08-01 | Hitachi, Ltd. | Liquid crystal display |
| CN101986381A (en) * | 2010-11-04 | 2011-03-16 | 中兴通讯股份有限公司 | Method and device for recognizing liquid crystal display screen and terminal |
| CN202102693U (en) * | 2011-05-19 | 2012-01-04 | 广州视源电子科技有限公司 | Selection circuit compatible with power supply voltage of different liquid crystal screens |
| CN106878814A (en) * | 2017-03-22 | 2017-06-20 | 四川长虹电器股份有限公司 | The system and method for compatible LCD TV standard screen and Tconless screens |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114446213A (en) * | 2020-11-02 | 2022-05-06 | 联发科技（新加坡）私人有限公司 | Mainboard, display device, display method and computer readable storage medium |
| US11842704B2 (en) | 2020-11-02 | 2023-12-12 | Mediatek Singapore Pte. Ltd. | Mainboard with at least two interfaces to boost performance for connecting different displays and the related device and method |
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Application publication date: 20171110 |
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| RJ01 | Rejection of invention patent application after publication |