CN109121002B - Liquid crystal television OC Demura data importing system and method - Google Patents
Liquid crystal television OC Demura data importing system and method Download PDFInfo
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- CN109121002B CN109121002B CN201811037577.4A CN201811037577A CN109121002B CN 109121002 B CN109121002 B CN 109121002B CN 201811037577 A CN201811037577 A CN 201811037577A CN 109121002 B CN109121002 B CN 109121002B
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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
- H04N21/43—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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- 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
- H04N21/4436—Power management, e.g. shutting down unused components of the receiver
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- Engineering & Computer Science (AREA)
- Software Systems (AREA)
- Multimedia (AREA)
- Signal Processing (AREA)
- General Engineering & Computer Science (AREA)
- Liquid Crystal Display Device Control (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention relates to the field of liquid crystal televisions, discloses a system and a method for importing OC Demura data of a liquid crystal television, and solves the problem that the booting time of the liquid crystal television is influenced in an OC Demura data importing scheme in the prior art. The scheme of the invention standardizes the format and the storage mode of the Demura data: the OC memory stores the Demura check data in addition to the Demura original compensation data; dividing a TCON memory into separate memory areas to store Demura conversion compensation data and Demura verification data; and a comparison mechanism of check data in the OC memory and the TCON memory is established, and if the check data in the OC memory and the TCON memory are consistent in comparison, the Demura conversion compensation data in the TCON memory is directly read, so that the import time of the Demura data and the starting time of the liquid crystal television are obviously reduced on the basis of ensuring the correctness of the imported Demura data, and the user experience is improved.
Description
Technical Field
The invention relates to the field of liquid crystal televisions, in particular to a system and a method for importing OC Demura data of a liquid crystal television.
Background
The OC Demura function is an important function related to display of the lcd television, and after the glass (Open Cell, hereinafter referred to as OC) of a screen factory is manufactured, the brightness uniformity is often not guaranteed due to the manufacturing process, the Mura (uneven brightness) phenomenon is likely to occur, and the specific states of uneven brightness expressed by each piece of glass are also different. In order to overcome the problem, the brightness uniformity of each OC is better, when an OC is manufactured by a liquid crystal display factory, Demura (Demura removal) debugging can be independently carried out on each OC, and Demura compensation data are debugged and stored in a memory on the OC.
Fig. 1 shows a system for importing OC Demura data of a liquid crystal television according to the conventional art, which includes: the system comprises a TCON main control chip, a data transmission cable and an OC memory; the TCON main control chip is a control device for data import and processing; an OC memory storing original OC Demura data; and the data transmission carrier is arranged between the data transmission cable, the TCON main control chip and the OC memory.
Based on the above introduction system, the liquid crystal television is started up at every time, and when the TCON board is electrified to be turned on, the TCON main control chip can read the Demura compensation data from the memory on the OC through the data transmission cable and introduce the Demura compensation data into the display data, so that the good brightness uniformity of each OC can be ensured. And because the Demura data of each OC is different, so when the liquid crystal television is electrified every time, the TCON main control chip needs to read the Demura data in the memorizer on the OC, and the Demura data led into the display data after the television is maintained (the TCON board is replaced) is matched with the OC.
However, the format of the Demura compensation data is specific, that is, the Demura data stored in the OC memory cannot be directly imported into the display data by the TCON main control chip, and the Demura compensation data needs to be firstly subjected to format conversion and then imported into the display data. The import process of Demura data can be divided into: reading, format conversion, and importing, as shown in fig. 2; because the original OC Demura data volume is large (MB level), the reading and conversion of the data take a long time, so that the starting time of the liquid crystal television is obviously influenced, and the user experience is reduced.
Disclosure of Invention
The technical problem to be solved by the invention is as follows: the system and the method for importing the OC Demura data of the liquid crystal display television are provided, and the problem that the startup time of the liquid crystal display television is influenced in an OC Demura data importing scheme in the traditional technology is solved.
The technical scheme adopted by the invention for solving the technical problems is as follows:
the liquid crystal television OC Demura data import system comprises a TCON main control chip, a TCON memory, a data transmission cable and an OC memory; the TCON main control chip is a control device for data import and processing; the data transmission cable is a data transmission carrier between the TCON main control chip and the OC memory; the TCON memory is used for dividing an independent storage area to store the Demura conversion compensation data and the Demura verification data; the OC memory is used for storing the Demura original compensation data and the Demura verification data.
As a further optimization, the Demura check data only identifies the integrity and uniqueness of the Demura original compensation data. The data size is small (KB level), the time consumption of reading and data comparison is small (millisecond level), and the comparison and verification can be rapidly carried out.
For further optimization, the Demura original compensation data are stored after Demura debugging is carried out in a liquid crystal display factory; the data size is large (MB level), the data can be imported into the display data by the TCON main control chip after format conversion, and the reading and format conversion of the data take much time (second level). The Demura conversion compensation data is compensation data obtained by format conversion of original compensation data by a TCON main control chip; the display data can be directly imported, and the time consumption for importing is small (millisecond level).
Based on the system, the invention also provides a method for importing the OC Demura data of the liquid crystal television, which comprises the following steps:
when the liquid crystal television is powered on and started up every time, the TCON main control chip reads the Demura verification data in the OC memory and compares the Demura verification data with the Demura verification data in the TCON memory;
if the comparison is successful, importing the Demura conversion compensation data in the TCON memory into the display data to finish the import of the Demura data;
if the comparison is unsuccessful, the TCON main control chip reads the Demura original compensation data in the OC memory and carries out format conversion on the Demura original compensation data, then the converted Demura compensation data and the check data in the OC memory are stored in the TCON memory and cover the previously stored data, and then the TCON main control chip leads the converted Demura compensation data into the display data to complete the leading-in of the Demura data.
The invention has the beneficial effects that:
standardize the format and storage mode of the Demura data: the OC memory stores the Demura check data in addition to the Demura original compensation data; dividing a TCON memory into separate memory areas to store Demura conversion compensation data and Demura verification data; and a comparison mechanism of check data in the OC memory and the TCON memory is established, and if the check data in the OC memory and the TCON memory are consistent in comparison, the Demura conversion compensation data in the TCON memory is directly read, so that the import time of the Demura data and the starting time of the liquid crystal television are obviously reduced on the basis of ensuring the correctness of the imported Demura data, and the user experience is improved.
Drawings
FIG. 1 is a schematic diagram of a system for importing OC Demura data of a liquid crystal television in the prior art;
FIG. 2 is a flow chart of a method for importing OC Demura data of a liquid crystal television in the prior art;
FIG. 3 is a schematic structural diagram of an OC Demura data import system of a liquid crystal television in the invention;
FIG. 4 is a flowchart of a method for importing OC Demura data of a liquid crystal television according to the present invention;
in the figure, 1 is a TCON board, 2 is a TCON main control chip, 3 is an OC memory, 4 is a data transmission cable, and 5 is a TCON memory.
Detailed Description
The invention aims to provide a system and a method for importing OC Demura data of a liquid crystal television, and solves the problem that the booting time of the liquid crystal television is influenced in an OC Demura data importing scheme in the traditional technology.
As shown in fig. 3, the system for importing OC Demura data of a liquid crystal television in the present invention includes a TCON main control chip 2, an OC memory 3, a data transmission cable 4, and a TCON memory 5; wherein, the TCON main control chip 2 and the TCON memory 5 are positioned on the TCON board 1, and the OC memory 3 is positioned on the OC. The functions of the various modules are as follows:
TCON master control chip 2: a control device for data import and processing;
the OC memory 3: storing original OC Demura data and Demura verification data;
data transmission cable 4: a data transmission carrier is arranged between the TCON main control chip 2 and the OC memory 3;
TCON memory 5: storing the OC Demura data and Demura check data after format conversion;
demura check data: only the integrity and uniqueness of original compensation data are identified, the data size is small (KB level), and the time consumption of reading and data comparison is small (millisecond level);
raw compensation data: the data size of the Demura original compensation data stored after Demura debugging is carried out for a liquid crystal display factory is large (MB level), the data can be imported into display data by a TCON main control chip after format conversion is generally carried out, and much time (second level) is needed for reading and format conversion of the data;
converting the compensation data: the compensation data obtained by format conversion of the original compensation data for the TCON main control chip can be directly imported into the display data, and the time consumption for importing is small (millisecond level).
Based on the system, the method for importing the OC Demura data of the lcd tv in the present invention is shown in fig. 4, and includes the following steps:
when the liquid crystal television is powered on every time, the TCON main control chip reads the Demura verification data in the OC memory and compares the Demura verification data with the verification data in the TCON memory, and if the comparison is successful, the Demura conversion compensation data in the TCON memory is led into the display data to complete the lead-in of the Demura data. The import process only involves reading and comparing a small amount of data (check data) and importing conversion compensation data, takes little time (millisecond level) and hardly influences the television starting time.
If the comparison of the verification data is unsuccessful, the TCON main control chip reads the Demura original compensation data in the OC memory, performs format conversion on the Demura original compensation data, stores the conversion compensation data and the verification data in the OC memory into the TCON memory and covers the previously stored data, and then the TCON control chip guides the new conversion compensation data into the display data to complete the introduction of the Demura data. The time consumption of this data importing process is large (in seconds), which obviously results in the long startup time of the lcd tv. However, this situation usually occurs only during the production, manufacture or maintenance of the tv (replacing the TCON board or OC), and when the user uses the lcd tv, the TCON main control chip only performs the above-mentioned importing step of successful verification and comparison for importing the OC Demura data, so that the importing time of OC Demura is very short, and the booting time of the lcd tv will not be significantly affected.
Claims (3)
1. The system for importing the OC Demura data of the liquid crystal television is characterized by comprising a TCON main control chip, a TCON memory, a data transmission cable and an OC memory; the TCON main control chip is a control device for data import and processing; the data transmission cable is a data transmission carrier between the TCON main control chip and the OC memory; the TCON memory is used for dividing an independent storage area to store the Demura conversion compensation data and the Demura verification data; the OC memory is used for storing the Demura original compensation data and the Demura check data; when the liquid crystal television is powered on and started up every time, the TCON main control chip reads the Demura verification data in the OC memory and compares the Demura verification data with the Demura verification data in the TCON memory; if the comparison is successful, importing the Demura conversion compensation data in the TCON memory into the display data to finish the import of the Demura data; if the comparison is unsuccessful, the TCON main control chip reads the Demura original compensation data in the OC memory and carries out format conversion on the Demura original compensation data, then the converted Demura compensation data and the check data in the OC memory are stored in the TCON memory and cover the previously stored data, and then the TCON main control chip leads the converted Demura compensation data into the display data to complete the leading-in of the Demura data.
2. The importing system of LCD TV OC Demura data of claim 1, wherein the Demura verification data only identifies the integrity and uniqueness of Demura original compensation data.
3. The system for importing OC Demura data of LCD TV according to claim 1 or 2,
the Demura original compensation data are Demura original compensation data stored after Demura debugging is carried out in a liquid crystal display factory;
and the Demura conversion compensation data is compensation data obtained by format conversion of original compensation data by the TCON main control chip.
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| CN201811037577.4A CN109121002B (en) | 2018-09-06 | 2018-09-06 | Liquid crystal television OC Demura data importing system and method |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109637431B (en) * | 2019-02-25 | 2022-04-01 | 武汉天马微电子有限公司 | Display compensation method of display panel |
| CN110246469A (en) * | 2019-07-29 | 2019-09-17 | 深圳市华星光电技术有限公司 | The demura data application method of unified format |
| CN110636364B (en) * | 2019-09-24 | 2022-08-30 | 深圳创维－Rgb电子有限公司 | Image quality processing method, smart television and storage medium |
| CN113099279A (en) * | 2021-03-31 | 2021-07-09 | 海信视像科技股份有限公司 | TCON parameter writing method and display device |
| CN113076142B (en) * | 2021-03-31 | 2022-12-27 | 海信视像科技股份有限公司 | TCON parameter initialization method and display device |
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| CN105244004A (en) * | 2015-11-23 | 2016-01-13 | 深圳市华星光电技术有限公司 | Control board and liquid crystal display with control board |
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| KR102519371B1 (en) * | 2016-01-20 | 2023-04-10 | 삼성디스플레이 주식회사 | Method of compensating an excimer laser annealing mura and display device employing the same |
| US10283071B2 (en) * | 2016-09-12 | 2019-05-07 | Novatek Microelectronics Corp. | Driving apparatus and method |
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| CN105244004A (en) * | 2015-11-23 | 2016-01-13 | 深圳市华星光电技术有限公司 | Control board and liquid crystal display with control board |
| CN106297692A (en) * | 2016-08-26 | 2017-01-04 | 深圳市华星光电技术有限公司 | A kind of adaptive method and device of clock controller |
| CN106960653A (en) * | 2017-04-25 | 2017-07-18 | 武汉精测电子技术股份有限公司 | A kind of module color spot prosthetic device and method |
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