CN101435931A - Method for reducing LCD device development cycle - Google Patents

Abstract

The invention relates to a method for shortening the development period of LCD panels. The method comprises the following steps: adding a panel parameter offshoring module into a LCD software program, storing the prior unchangeable panel parameters in a storage medium, and modifying a plant menu into an adjustable item to open to users for adjusting. In addition, the method adds a data loss protection mechanism for the added panel parameter offshoring module. The method has the advantages of reducing the released version number of the software program and the verification numbers of relational tests by verifiers, shortening the development period of importing the LCD to a new panel, improving the development flexibility of types of the LCD, and improving the development efficiency. In addition, the method improves the maintainability of the panel, improves the after-sales service efficiency, and reduces after-sales service costs.

Description

Shorten the method for LCD device development cycle

[technical field]

The invention relates to a kind of method of LCD exploitation, be meant a kind of method that shortens LCD device development cycle especially.

[background technology]

Along with the sharp increase of LCD machine exploitation quantity, and the deflation of machine construction cycle, the existing construction cycle needs to shorten in a hurry.One of them important link is exactly a software program, so software program development has very large influence to the construction cycle; Another one aspect, the after sale service of LCD also are most important rings of product life cycle, and the quality of after sale service is related to company's reputation and brand image, so there is very big necessity that link is after sale done improvement.

The implementation of software program is as follows in the available liquid crystal display:

1, if a last software program goes wrong in the checking of panel of LCD parameter correlation, need to revise again again a software program, and then discharge a software program to the proof department gate test, and still needing to wait for the checking of other machines in the process, the cycle needs longer;

2, if occur client's panel of LCD problem in the customer service, and the stock does not have corresponding panel, then needs the long stand-by period, has influenced the efficient of after sale service, and the client may need to wait for the panel arrival.

The shortcoming of prior art:

1, the software program development cycle long, the software program version of checking often, test period is long;

2, longer because of the averaging time after sale of panel problem, efficient is not high;

3, the kind because of panel is many especially, and the stock of after sale service is caused very big puzzlement.

[summary of the invention]

Technical matters to be solved by this invention is to provide a kind of method that can shorten LCD device development cycle.

The present invention solves the problems of the technologies described above by the following technical programs: a kind of method that shortens LCD device development cycle, it is characterized in that: in the LCD software program, add shifting formwork piece outside the panel parameter, originally fixing immutable panel parameter project is stored on the storage medium, and in factory's menu, be revised as and the opening of adjustment project adjust to the user.

This invention further is specially:

The described specific implementation step that adds shifting formwork piece outside the panel parameter in the LCD software program is as follows:

Step 1: at first in the software program of LCD, find out the precompile order line that all use the fixed panel parameter, it is replaced with the C statement, make software program change summary, the content of change reduces as far as possible, makes it not influence the readability of original software program;

Step 2: analyze the allocation situation of original software program framework, mark off certain space and come the storage surface board parameter to storage space;

Step 3: newly in the software program of LCD add a menu, this menu is used for showing and adjusts each panel parameter in the panel;

Step 4: according to the various menu item development of opening out power function separately realize, be linked as an available functional module.

Also comprise the step that adds the loss of data protection mechanism at the outer shifting formwork piece of the panel parameter that adds.

The described specific implementation step that adds the loss of data protection mechanism at the outer shifting formwork piece of the panel parameter that adds is as follows:

Step 10: indexed variable and the storage of a Word are set, and user-defined panel parameter is used in expression, when reading panel parameter and be provided with, if when finding value that this indexed variable value sets before being not equal to, just calls the panel parameter of acquiescence originally;

Step 20: when using the custom panel parameter, can judge when reading panel parameter whether the panel parameter of being read is normal, as undesired, the parameter of using the acquiescence panel this moment reinitializes panel parameter and returns range of normal value, to guarantee the panel operate as normal.

The advantage that the present invention shortens the method for LCD device development cycle is: reduce the version number that software program discharges, reduce the checking number of times of checking personnel to dependence test, shorten the construction cycle of LCD, improved the elasticity of LCD machine exploitation, promote development efficiency.Increase the maintenanceability of panel simultaneously, improved after sale service efficient, and reduced after service cost.

[description of drawings]

The invention will be further described in conjunction with the embodiments with reference to the accompanying drawings.

Fig. 1 is to use the concrete layout of OSD menu behind the present invention.

Fig. 2 is the software development flow figure after the software flow of LCD improves;

Fig. 3 is the after sale service process flow diagram behind application the present invention;

Fig. 4 is process flow diagram of the present invention for the user uses.

[embodiment]

The method that the present invention shortens LCD device development cycle is by coming out fixing in the LCD in the past, nonadjustable panel parameter opening, becomes that adjustable project realizes.Need add the open functional module of this panel parameter at software program, and in factory's menu, open and adjust to the user, and these projects are stored into Flash (flash memory) or EEPRom (Electrically ErasableProgrammable Read-Only Memory, EEPROM (Electrically Erasable Programmable Read Only Memo)) in, and to guarantee losing of data can not be taken place.Specifically comprise the following aspects.

1, in the LCD software program, adds shifting formwork piece outside the panel parameter.

Panel parameter move outward refer to former some fixed value that writes in the software program change to one can access the global variable value, reach a software program and after making an amendment slightly, can directly on the LCD of an other different model panel, move, make things convenient for development and maintenance.The specific implementation step is as follows:

Step 1: at first in the software program of LCD, find out the precompile order line that all use the fixed panel parameter, it is replaced with the C statement, can make software program change summary, the content of change reduces as far as possible, makes it not influence the readability of original software program.For example:

Original software program is as follows: (PanelWidth etc. are the value of macro definition definition)

#if((PanelWidth＝＝1280&&PanelHeight＝＝720)||(PanelWidth＝＝1366&&Pan

elHeight＝＝768))

msWriteByte(BK3_B6，0x00)；

msWriteByte(BK3_B7，PanelHeight/8)；//2005/1/24

#else

msWriteByte(BK3_B6，0x20)；

msWriteByte(BK3_B7，0x70)；//2005/1/24

#endif

Change back (PanelWidth changes to global variable):

if((PanelWidth＝＝1280&&PanelHeight＝＝720)||(PanelWidth＝＝1366&&PanelHeight＝＝768))

{

msWriteByte(BK3_B6，0x00)；

msWriteByte(BK3_B7，PanelHeight/8)；//2005/1/24

}

else

{

msWriteByte(BK3_B6，0x20)；

msWriteByte(BK3_B7，0x70)；//2005/1/24

}

Step 2: analyze the allocation situation of original software program framework to storage space, mark off certain space and come the storage surface board parameter, panel parameter can be kept among the EEPRom, also can be kept among the Flash, because terminal user is the less moving thing to Flash the inside of software program in use, so suggestion is stored among the Flash, can prevent that loss of data from taking place;

Step 3: a new menu, this OSD (on-screendisplay, i.e. the screen menu type regulative mode of adding in the software program of LCD.Generally be the menu of the every reconciling items information of display that ejects by screen behind the Menu key, can comprise that to the every working index of display color, pattern, position etc. adjust by this menu, thereby reach best user mode.) menu is used for showing and adjusts each panel parameter in the panel, concrete layout is as shown in Figure 1;

Step 4: realize according to the power function that each OSD menu item of opening is out write separately, be linked as an available functional module.

2, add the loss of data protection mechanism at the outer shifting formwork piece of the panel parameter that adds.The specific implementation step is as follows:

Step 10: the indexed variable that a Word is set, as 0xBB99 (needing storage), user-defined panel parameter is used in expression, when reading panel parameter and be provided with, be not equal to the value of setting before if find this indexed variable value, when being 0xBB99, will call the panel parameter of acquiescence originally, turn back to customer service place maintenance because need adjustment panel parameter major part to arrive, and this situation is few, so guarantee that panel calls the parameter of acquiescence under most of situation, allow the panel parameter can be comparatively accurate, so that guarantee panel is lighted;

Step 20: when using the custom panel parameter, can judge when reading panel parameter whether the panel parameter of being read is normal, check the checksum value of setting in the storage unit as meeting, check the indexed variable 0xBB99 that sets, the byte that storage unit begins, and check that all variate-values are whether in normal value range, setting is incorporated as 0-100 as ON T1 time reasonable value, if this moment, the value of storage was 125, assert that then organize panel parameter is set with problem for this reason, the parameter of using the acquiescence panel this moment reinitializes panel parameter and returns range of normal value, to guarantee the panel operate as normal.

Except above-mentioned panel parameter, the content relevant with mainboard and wiring etc. can be done corresponding setting in the OSD menu, be convenient to later expansion.

See also shown in Figure 2ly,, specifically comprise the steps: for the software flow of the LCD software development flow figure after improving

Step 202: beginning;

Does step 203: precision measurement meet panel specification (panel spec.)? if meet, enter step 204, otherwise, enter step 205;

Does step 204:EMI test meet safety and requires? fruit meets, and enters step 206, otherwise, enter step 207;

Step 205: the tester adjusts relevant parameter from being advanced in factory's menu according to the panel specification, returns step 203 then;

Do step 206:DCR (Dynamic Contrast Ratio, dynamic contrast rate), acquiescence brightness, high-high brightness etc. meet the requirements of the customers? if meet, enter step 208, otherwise enter step 209;

Step 207: the tester is from being advanced in factory's menu, (exhibition is control frequently to adjust SSC according to the safety test data, spread-spectrum-control), help to reduce electromagnetic interference (EMI) (Electro MagneticInterference, EMI) step (accusing the rate of change of system SSC) and span relevant parameters such as (accusing the frequency deviation of system SSC) are returned step 204 then;

Step 208: judge whether other tests in addition? if have, then enter step 210, otherwise, enter step 211;

Step 209: the tester adjusts relevant parameters such as minimax and acquiescence brightness (duty) from being advanced in factory's menu according to customer requirement, return step 206 then;

Step 210: the machine responsible official collects all parameters and notes and informs and the software slip-stick artist enter step 212 then;

Step 211: the tester adjusts other relevant parameters from being advanced in factory's menu, returns step 208 then;

Step 212: finish.

See also shown in Figure 3ly,, specifically comprise the steps: for using the after sale service process flow diagram behind the present invention

Step 302: beginning;

Does step 303: panel breakage need to change? if, enter step 304, otherwise, step 305 entered;

Step 304: this panel stock is arranged? if have, then enter step 306, otherwise, enter step 307;

Step 305: enter other service routines, enter step 309 then;

Step 306: directly more renew panel, enter step 309 then;

Step 307: other unidimensional panels with interface are arranged? if have, then enter step 308, otherwise, return step 304;

Step 308: directly more renew panel, and enter in factory's menu the parameter relevant, and whether the work of test display have unusually, enter step 309 then according to the adjustment of panel specification;

Step 309: finish.

See also shown in Figure 4ly,, specifically comprise the steps: for the user uses process flow diagram of the present invention

Step 402: beginning;

Step 403: use user-defined panel? if, then enter step 404, otherwise, step 405 entered;

Step 404: whether the inspection panel parameter normal? if then enter step 405, otherwise enter step 407;

Step 405: call the default parameters and the initialization of the corresponding panel of software, enter step 408 then;

Step 406: read panel parameter and initial in the storage medium, enter step 408 then;

Step 407: reinitialize all parameters, preserve current parameter and be set to storage medium and initialization;

Step 408: finish.

Though more than described the specific embodiment of the present invention; but being familiar with those skilled in the art is to be understood that; our described specific embodiment is illustrative; rather than be used for qualification to scope of the present invention; those of ordinary skill in the art are in the modification and the variation of the equivalence of doing according to spirit of the present invention, all should be encompassed in the scope that claim of the present invention protects.

Claims (4)

1. method that shortens LCD device development cycle, it is characterized in that: in the LCD software program, add shifting formwork piece outside the panel parameter, originally fixing immutable panel parameter project is stored on the storage medium, and in factory's menu, be revised as and the opening of adjustment project adjust to the user.

2. the method for shortening LCD device development cycle as claimed in claim 1 is characterized in that: the described specific implementation step that adds shifting formwork piece outside the panel parameter in the LCD software program is as follows:

Step 1: at first in the software program of LCD, find out the precompile order line that all use the fixed panel parameter, it is replaced with the C statement, make software program change summary, the content of change reduces as far as possible, makes it not influence the readability of original software program;

Step 2: analyze the allocation situation of original software program framework, mark off certain space and come the storage surface board parameter to storage space;

Step 3: newly in the software program of LCD add a menu, this menu is used for showing and adjusts each panel parameter in the panel;

Step 4: according to the various menu item development of opening out power function separately realize, be linked as an available functional module.

3. the method for shortening LCD device development cycle as claimed in claim 1 or 2 is characterized in that: also comprise the step that adds the loss of data protection mechanism at the outer shifting formwork piece of the panel parameter that adds.

4. the method for shortening LCD device development cycle as claimed in claim 3 is characterized in that: the described specific implementation step that adds the loss of data protection mechanism at the outer shifting formwork piece of the panel parameter that adds is as follows:

Step 10: indexed variable and the storage of a Word are set, and user-defined panel parameter is used in expression, when reading panel parameter and be provided with, if when finding value that this indexed variable value sets before being not equal to, just calls the panel parameter of acquiescence originally;

Step 20: when using the custom panel parameter, can judge when reading panel parameter whether the panel parameter of being read is normal, as undesired, the parameter of using the acquiescence panel this moment reinitializes panel parameter and returns range of normal value, to guarantee the panel operate as normal.

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