CN105681700A - Flicker debugging method and device for liquid crystal display television - Google Patents
Flicker debugging method and device for liquid crystal display television Download PDFInfo
- Publication number
- CN105681700A CN105681700A CN201610068408.1A CN201610068408A CN105681700A CN 105681700 A CN105681700 A CN 105681700A CN 201610068408 A CN201610068408 A CN 201610068408A CN 105681700 A CN105681700 A CN 105681700A
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- flicker
- module
- vcom voltage
- lcd
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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
- H04N21/422—Input-only peripherals, i.e. input devices connected to specially adapted client devices, e.g. global positioning system [GPS]
- H04N21/42204—User interfaces specially adapted for controlling a client device through a remote control device; Remote control devices therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N17/004—Diagnosis, testing or measuring for television systems or their details for digital television systems
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N17/00—Diagnosis, testing or measuring for television systems or their details
- H04N2017/008—Diagnosis, testing or measuring for television systems or their details for television teletext
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- Engineering & Computer Science (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Biomedical Technology (AREA)
- General Health & Medical Sciences (AREA)
- Human Computer Interaction (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention relates to the technical field of liquid crystal display televisions, provides a Flicker debugging method and device for a liquid crystal display television, and aims to solve the problem that an existing Flicker debugging method for liquid crystal screens is not suitable for new on-screen signals any more. The device comprises a television main signal chip and a control module, wherein the television main signal chip comprises an OSD (On Screen Display) canvas module, a Flicker debugging picture data output module, a Vcom (Voltage of Common electrode) voltage control register value saving module and a debugging module. According to the technical scheme provided by the invention, the problem of incapability of implementing function debugging through existing debugging equipment due to change of an on-screen signal interface is solved. Meanwhile, corresponding debugging equipment such as a signal generator, a color analyzer and a computer are saved; the cost is saved; and the production efficiency of the liquid crystal display television is increased.
Description
Technical field
The present invention relates to liquid crystal tv technology field, particularly to Flicker adjustment method and the device of a kind of LCD TV.
Background technology
In LCD TV field, development along with integrated chip technology, television logical signal panel has been provided with being integrated into the ability of TV set core, but owing to the legacy interface of upper screen signal is LVDS signaling interface, and after television logical signal panel is incorporated on TV set core, the interface of upper screen signal will become mini-LVDS signaling interface, owing to signaling interface changes, and at present will be no longer applicable to the Flicker adjustment method of panel glass.
Summary of the invention
[solving the technical problem that]
It is an object of the invention to provide the Flicker adjustment method of a kind of LCD TV and device, with the problem solving at present the Flicker adjustment method of liquid crystal display screen to be no longer suitable for new upper screen signal.
[technical scheme]
The present invention is achieved by the following technical solutions.
Present invention firstly relates to the Flicker adjustment method of a kind of LCD TV, including:
OSD canvas module in A, TV main signal chip generates Flicker debugging pictures data, described debugging pictures data include test picture, Vcom (VoltageofCommonelectrode, public electrode voltages) magnitude of voltage progress bar, described Vcom voltage value is the currency that the Vcom voltage that P-Gamma chip is corresponding controls depositor;
The output of Flicker debugging pictures data is displayed by B, TV main signal chip to LCD TV screen;
C, the Vcom voltage control register value corresponding by controlling module adjustment P-Gamma chip;
D, when the middle part of test picture of display on LCD TV screen is from when the flicker before adjusting substantially becomes not glimmering or flicker level is minimum, the Vcom voltage control register value after now adjusting is preserved to movement memorizer;
After the start of E, LCD TV, from the Vcom voltage control register value of movement memorizer reading and saving and write the values into Vcom voltage corresponding to P-Gamma chip and control depositor.
As one preferred embodiment, described control module is remote controller.
As another preferred embodiment, described movement memorizer is EEPROM.
The invention still further relates to the Flicker debugging apparatus of a kind of LCD TV, including TV main signal chip and control module, described TV main signal chip includes OSD canvas module, Flicker debugging pictures data outputting module, Vcom voltage control register value preservation module and debugging module
Described OSD canvas module is configured to: generate Flicker debugging pictures data, and described debugging pictures data include test picture, Vcom voltage value progress bar, and described Vcom voltage value is the currency that the Vcom voltage that P-Gamma chip is corresponding controls depositor;
Described Flicker debugging pictures data outputting module is configured to: the output of Flicker debugging pictures data displayed to LCD TV screen;
Described Vcom voltage control register value preserves module and is configured to: when the middle part of test picture of display on LCD TV screen is from when the flicker before adjusting substantially becomes not glimmering or flicker level is minimum, preserve the Vcom voltage control register value after now adjusting to movement memorizer;
Described debugging module is configured to: after LCD TV start, from the Vcom voltage control register value of movement memorizer reading and saving and write the values into Vcom voltage corresponding to P-Gamma chip and control depositor;
Described control module is configured to: adjust the Vcom voltage control register value that P-Gamma chip is corresponding.
As one preferred embodiment, described control module is remote controller.
As another preferred embodiment, described movement memorizer is EEPROM.
[beneficial effect]
The technical scheme that the present invention proposes has the advantages that
Pass through technical scheme, after liquid crystal display screen logic card is incorporated in TV core plate, TV main signal chip can be passed through and remote control module realizes the Flicker of liquid crystal display screen is debugged, solve the problem that the existing commissioning device caused because of the change of upper screen signaling interface cannot realize function debugging, also save the commissioning devices such as corresponding signal generator, color analysis instrument, computer simultaneously, save cost, improve the production efficiency of LCD TV.
Accompanying drawing explanation
The structural representation of the Flicker debugging apparatus of the LCD TV that Fig. 1 provides for embodiments of the invention one.
The flow chart of the Flicker adjustment method of the LCD TV that Fig. 2 provides for embodiments of the invention two.
Detailed description of the invention
For making the object, technical solutions and advantages of the present invention clearly, the specific embodiment of the present invention will be carried out clear, complete description below.
Embodiment one
The structural representation of the Flicker debugging apparatus of the LCD TV that Fig. 1 provides for the embodiment of the present invention one. As it is shown in figure 1, this device includes TV main signal chip and controls module, TV main signal chip includes OSD canvas module, Flicker debugging pictures data outputting module, Vcom voltage control register value preservation module and debugging module.
OSD canvas module is configured to: generate Flicker debugging pictures data, and described debugging pictures data include test picture, Vcom voltage value progress bar, and described Vcom voltage value is the currency that the Vcom voltage that P-Gamma chip is corresponding controls depositor.
Flicker debugging pictures data outputting module is configured to: the output of Flicker debugging pictures data displayed to LCD TV screen.
Vcom voltage control register value preserves module and is configured to: when the middle part of test picture of display on LCD TV screen is from when the flicker before adjusting substantially becomes not glimmering or flicker level is minimum, preserve the Vcom voltage control register value after now adjusting to movement memorizer. Need explanation, Vcom voltage is a magnitude of voltage of liquid crystal module screen end, determined by the operation principle of the characteristic of liquid crystal and liquid crystal module, screen driver circuit exists a positive and negative deflection voltage, Vcom needs to be arranged on the bosom point of this positive and negative deflection voltage, by adjusting the value of Vcom, the Flicker value of LCD TV screen can be adjusted to minimum by we, so that the display effect of LCD TV screen reaches best.It addition, the movement memorizer in the present embodiment is EEPROM, by Vcom voltage control register value is preserved to movement memorizer to realize the persistence of this value.
Debugging module is configured to: after LCD TV start, from the Vcom voltage control register value of movement memorizer reading and saving and write the values into Vcom voltage corresponding to P-Gamma chip and control depositor.
Control module to be configured to: adjust the Vcom voltage control register value that P-Gamma chip is corresponding. Specifically, in the present embodiment, control module is remote controller, can adjust, by this remote controller, the Vcom voltage control register value that P-Gamma chip is corresponding.
The Flicker adjustment method adopting the LCD TV of the realization of the device in embodiment one is referred to following concrete grammar embodiment.
Embodiment two
The flow chart of the Flicker adjustment method of the LCD TV that Fig. 2 provides for the embodiment of the present invention two. As in figure 2 it is shown, include step S1 to step S5, separately below above-mentioned steps is described in detail.
Step S1: generate Flicker debugging pictures data.
In step S1, OSD canvas module in TV main signal chip generates Flicker debugging pictures data, wherein debugging pictures data include test picture, Vcom (VoltageofCommonelectrode, public electrode voltages) magnitude of voltage progress bar, Vcom voltage value is the currency that the Vcom voltage that P-Gamma chip is corresponding controls depositor. It is to be appreciated that test picture is designed according to the requirement of liquid crystal display screen, by OSD canvas module, it is necessary to the point-to-point form realizing test picture shows.
Step S2: the output of Flicker debugging pictures data is displayed to LCD TV screen.
In step S2, the output of Flicker debugging pictures data is displayed by TV main signal chip to LCD TV screen, so, passes through telescreen, it is possible to obtain debugging effect intuitively.
Step S3: adjust the Vcom voltage control register value that P-Gamma chip is corresponding.
In step S3, adjust, by controlling module, the Vcom voltage control register value that P-Gamma chip is corresponding. Specifically, control module is remote controller, can adjust, by this remote controller, the Vcom voltage control register value that P-Gamma chip is corresponding. The control of Vcom voltage register value is carried out by the add-substract key of remote controller, the Vcom voltage control register value that corresponding adjustment system Pgamma chip is corresponding, and show Vcom voltage value progress bar on the tv screen in real time.
Step S4: Vcom voltage control register value when preservation is not glimmered or flicker level is minimum.
In step S4, when the test picture that LCD TV screen central part shows does not glimmer or flicker level is minimum, Vcom voltage control register value now is preserved to movement memorizer. Specifically, it is possible to sent by remote controller and preserve order, Vcom voltage control register value now is preserved to movement memorizer after receiving and preserving order by TV main signal chip. It addition, the movement memorizer in the present embodiment is EEPROM, by Vcom voltage control register value is preserved to movement memorizer to realize the persistence of this value.
Step S5: after LCD TV start, Vcom voltage corresponding for the Vcom voltage control register value write P-Gamma chip preserved is controlled depositor.
In step S5, after LCD TV start, from the Vcom voltage control register value of movement memorizer reading and saving and write the values into Vcom voltage corresponding to P-Gamma chip and control depositor.
As can be seen from the above embodiments, by the technical scheme of the embodiment of the present invention, after liquid crystal display screen logic card is incorporated in TV core plate, TV main signal chip can be passed through and remote control module realizes the Flicker of liquid crystal display screen is debugged, solve the problem that the existing commissioning device caused because of the change of upper screen signaling interface cannot realize this function debugging, also save the commissioning devices such as corresponding signal generator, color analysis instrument, computer simultaneously, save cost, improve the production efficiency of LCD TV.
It is to be appreciated that the embodiment of foregoing description is a part of embodiment of the present invention, rather than whole embodiment, neither limitation of the present invention. Based on embodiments of the invention, the every other embodiment that those of ordinary skill in the art obtain under not paying creative work premise, broadly fall into protection scope of the present invention.
Claims (6)
1. the Flicker adjustment method of a LCD TV, it is characterised in that including:
OSD canvas module in A, TV main signal chip generates Flicker debugging pictures data, described debugging pictures data include test picture, Vcom voltage value progress bar, and described Vcom voltage value is the currency that the Vcom voltage that P-Gamma chip is corresponding controls depositor;
The output of Flicker debugging pictures data is displayed by B, TV main signal chip to LCD TV screen;
C, the Vcom voltage control register value corresponding by controlling module adjustment P-Gamma chip;
D, when the middle part of test picture of display on LCD TV screen is from when the flicker before adjusting substantially becomes not glimmering or flicker level is minimum, the Vcom voltage control register value after now adjusting is preserved to movement memorizer;
After the start of E, LCD TV, from the Vcom voltage control register value of movement memorizer reading and saving and write the values into Vcom voltage corresponding to P-Gamma chip and control depositor.
2. the Flicker adjustment method of LCD TV according to claim 1, it is characterised in that described control module is remote controller.
3. the Flicker adjustment method of LCD TV according to claim 1, it is characterised in that described movement memorizer is EEPROM.
4. the Flicker debugging apparatus of a LCD TV, it is characterized in that including TV main signal chip and controlling module, described TV main signal chip includes OSD canvas module, Flicker debugging pictures data outputting module, Vcom voltage control register value preservation module and debugging module
Described OSD canvas module is configured to: generate Flicker debugging pictures data, and described debugging pictures data include test picture, Vcom voltage value progress bar, and described Vcom voltage value is the currency that the Vcom voltage that P-Gamma chip is corresponding controls depositor;
Described Flicker debugging pictures data outputting module is configured to: the output of Flicker debugging pictures data displayed to LCD TV screen;
Described Vcom voltage control register value preserves module and is configured to: when the middle part of the test picture that LCD TV screen show is from when the flicker before adjusting substantially becomes not glimmering or flicker level is minimum, by the Vcom voltage control register value preservation after now adjusting to movement memorizer;
Described debugging module is configured to: after LCD TV start, from the Vcom voltage control register value of movement memorizer reading and saving and write the values into Vcom voltage corresponding to P-Gamma chip and control depositor;
Described control module is configured to: adjust the Vcom voltage control register value that P-Gamma chip is corresponding.
5. the Flicker debugging apparatus of LCD TV according to claim 4, it is characterised in that described control module is remote controller.
6. the Flicker debugging apparatus of LCD TV according to claim 4, it is characterised in that described movement memorizer is EEPROM.
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| CN201610068408.1A CN105681700B (en) | 2016-01-28 | 2016-01-28 | The Flicker adjustment method and device of LCD TV |
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| CN201610068408.1A CN105681700B (en) | 2016-01-28 | 2016-01-28 | The Flicker adjustment method and device of LCD TV |
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| CN105681700B CN105681700B (en) | 2019-03-22 |
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Cited By (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106507193A (en) * | 2016-11-08 | 2017-03-15 | 四川长虹电器股份有限公司 | Whole set of television realizes that TCON writes the apparatus and method of journey and VCOM debugging |
| CN106657843A (en) * | 2016-12-13 | 2017-05-10 | 四川长虹电器股份有限公司 | Quantitative debugging method for brightness of liquid crystal display television |
| CN106652861A (en) * | 2016-11-30 | 2017-05-10 | 广州视源电子科技股份有限公司 | Display screen detection method and device |
| CN107123398A (en) * | 2017-03-21 | 2017-09-01 | 青岛海信电器股份有限公司 | The VCOM voltage adjusting methods and device of LCDs |
| CN107911746A (en) * | 2017-11-28 | 2018-04-13 | 四川长虹电器股份有限公司 | 4k LCD TV flicker debugging apparatus and method |
| CN108597470A (en) * | 2018-05-08 | 2018-09-28 | 深圳市华星光电技术有限公司 | Display device drive system and method and display device |
| CN109192155A (en) * | 2018-09-11 | 2019-01-11 | 四川长虹电器股份有限公司 | The method that Tconless LCD TV carries out screen flicker debugging automatically |
| CN110381273A (en) * | 2019-06-06 | 2019-10-25 | 深圳康佳电子科技有限公司 | A kind of LCD TV circuit system and interface |
| CN111968592A (en) * | 2020-08-28 | 2020-11-20 | 贵州芯源微科技有限公司 | Display control method, liquid crystal panel and computer storage medium |
| US10891885B2 (en) | 2018-10-30 | 2021-01-12 | Chongqing Advance Display Technology Research | Method and test machine platform for quickly searching for common voltage of display panel |
| CN114268754A (en) * | 2021-12-23 | 2022-04-01 | 四川长虹电器股份有限公司 | Method for writing Flicker debugging value of Tconless liquid crystal television |
| CN114974152A (en) * | 2021-02-25 | 2022-08-30 | 广州视源电子科技股份有限公司 | Display screen flicker correction method and display screen flicker correction system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN106507193A (en) * | 2016-11-08 | 2017-03-15 | 四川长虹电器股份有限公司 | Whole set of television realizes that TCON writes the apparatus and method of journey and VCOM debugging |
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| CN106652861B (en) * | 2016-11-30 | 2020-12-04 | 广州视源电子科技股份有限公司 | Detection method and device for display screen |
| CN106657843A (en) * | 2016-12-13 | 2017-05-10 | 四川长虹电器股份有限公司 | Quantitative debugging method for brightness of liquid crystal display television |
| CN107123398A (en) * | 2017-03-21 | 2017-09-01 | 青岛海信电器股份有限公司 | The VCOM voltage adjusting methods and device of LCDs |
| CN107911746A (en) * | 2017-11-28 | 2018-04-13 | 四川长虹电器股份有限公司 | 4k LCD TV flicker debugging apparatus and method |
| CN108597470A (en) * | 2018-05-08 | 2018-09-28 | 深圳市华星光电技术有限公司 | Display device drive system and method and display device |
| CN109192155A (en) * | 2018-09-11 | 2019-01-11 | 四川长虹电器股份有限公司 | The method that Tconless LCD TV carries out screen flicker debugging automatically |
| US10891885B2 (en) | 2018-10-30 | 2021-01-12 | Chongqing Advance Display Technology Research | Method and test machine platform for quickly searching for common voltage of display panel |
| CN110381273B (en) * | 2019-06-06 | 2021-09-21 | 深圳康佳电子科技有限公司 | Liquid crystal television circuit system and interface |
| CN110381273A (en) * | 2019-06-06 | 2019-10-25 | 深圳康佳电子科技有限公司 | A kind of LCD TV circuit system and interface |
| CN111968592A (en) * | 2020-08-28 | 2020-11-20 | 贵州芯源微科技有限公司 | Display control method, liquid crystal panel and computer storage medium |
| CN111968592B (en) * | 2020-08-28 | 2022-02-22 | 贵州芯源微科技有限公司 | Display control method, liquid crystal panel and storage medium |
| CN114974152A (en) * | 2021-02-25 | 2022-08-30 | 广州视源电子科技股份有限公司 | Display screen flicker correction method and display screen flicker correction system |
| CN114974152B (en) * | 2021-02-25 | 2023-11-10 | 广州视源电子科技股份有限公司 | Display screen flicker correction method and display screen flicker correction system |
| CN114268754A (en) * | 2021-12-23 | 2022-04-01 | 四川长虹电器股份有限公司 | Method for writing Flicker debugging value of Tconless liquid crystal television |
| CN114268754B (en) * | 2021-12-23 | 2024-02-23 | 四川长虹电器股份有限公司 | Writing method of Flicker debugging value of Tconless liquid crystal display television |
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