CN103685732B - display device and electrostatic protection method thereof - Google Patents
display device and electrostatic protection method thereof Download PDFInfo
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- CN103685732B CN103685732B CN201310574473.8A CN201310574473A CN103685732B CN 103685732 B CN103685732 B CN 103685732B CN 201310574473 A CN201310574473 A CN 201310574473A CN 103685732 B CN103685732 B CN 103685732B
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Abstract
The electrostatic protection method of a kind of display device, data message is obtained the first check code through preset algorithm by host computer system；Data message and the first check code are encapsulated as packet and are sent to show module by host computer system；Display module receives and parses through and obtains data message and the first check code；Display module obtains the second check code according to preset algorithm and the data message received；Display module compares the first check code and the second check code, when the first check code and the second check code are different, produces error flag information；Host computer system detects and responds error flag information, sends initialization information to display module；Display mould initializes according to initialization information.The present invention also provides for the display device of a kind of correspondence.Display module is initialized by said method and device when producing above-mentioned error flag information, increases method and the approach finding that display is abnormal so that the display performance of display module is higher.
Description
Technical field
The present invention relates to electrostatic discharge protective field, particularly relate to a kind of display device and electrostatic defending side thereof
Method.
Background technology
Electrostatic is a kind of electric charge remained static, it is common that produced by the phase mutual friction between object or sensing
Raw.Electric charge all can be occurred to turn when static electrification object contacts zero potential object or has the object of potential difference with it
Moving, moment produces stronger electric current, i.e. there occurs static discharge.Static discharge can cause the event of electronic equipment
Barrier or misoperation, need electronic equipment static discharge is taked safeguard procedures.
Mobile phone display module is the window of user and mobile phone interaction, affects user's print to mobile phone overall performance
As and evaluate, therefore manufacturer take much count of improve mobile phone display module interference free performance, especially pay attention to display
The electrostatic discharge protective of module.
As static interference may cause showing that module output frame synchronizing signal is become low level from high level, and then
Cause display abnormal, the most just need display module is initialized.But, static interference is random
, frame synchronizing signal may not necessarily be affected when display is impacted, thus do not carry out when causing showing exception
Display module initializes, the overall display performance of impact.
Summary of the invention
Based on this, it is necessary to provide a kind of higher display device of display performance and electrostatic protection method thereof.
A kind of electrostatic protection method of display device, described display device includes host computer system and display module,
The electrostatic protection method of described display device comprises the steps:
Data message is generated the first check code through preset algorithm by described host computer system；
Described data message and described first check code are encapsulated as packet and are sent to described by described host computer system
Display module；
Described display module receives and parses through and obtains described data message and described first check code；
Described display module generates the second verification according to described preset algorithm and the described data message received
Code；
More described first check code of described display module and described second check code, at described first check code
Time different from described second check code, produce error flag information；
Described host computer system detects and responds described error flag information, sends initialization information to described display
Module；
Described display mould initializes according to described initialization information.
In one of them embodiment, described host computer system is cell phone mainboard, and described display module is that mobile phone shows
Module.
In one of them embodiment, described error flag information is stored in the drive circuit of described display module and posts
In storage.
A kind of display device, including host computer system and display module, described host computer system includes: verification unit,
Encapsulation unit and control unit.Described display module includes: resolution unit, authentication unit, indexing unit and
Initialization unit,
Described verification unit is for generating the first check code by data message through preset algorithm.
Described encapsulation unit is concurrent for described data message and described first check code are encapsulated as packet
Send.
Described resolution unit is used for receiving and parsing through described packet and obtains described data message and described first school
Test code.
Described authentication unit is for generating the second school according to described preset algorithm and the described data message received
Test code.
Described authentication unit is for relatively described first check code and described second check code, in described first school
Test code different from described second check code time, produce error flag information.
Described control unit is used for detecting and responding described error flag information, sends initialization information.
Described initialization unit is for initializing according to described initialization information.
In one of them embodiment, described host computer system is cell phone mainboard, and described display module is that mobile phone shows
Module.
In one of them embodiment, described error flag information is stored in the drive circuit of described display module and posts
In storage.
Because applicant is during long-term mobile phone electrostatic test, find when electrostatic causes showing module exception,
Wherein this electrostatic can make described packet information change on certain probability, and then produces corresponding mistake
By mistake flag information, to this end, said method and device when producing above-mentioned error flag information to display module
Initialize, increase method and the approach finding that display is abnormal so that the display performance of display module is higher.
Accompanying drawing explanation
Fig. 1 is the electrostatic protection method flow chart of a preferred embodiment of the present invention display device；
Fig. 2 is the functional block diagram of a preferred embodiment of the present invention display device.
Detailed description of the invention
As it is shown in figure 1, the step stream of the electrostatic protection method that it is a preferred embodiment of the present invention display device
Cheng Tu, described display device includes host computer system and display module, and described method comprises the steps:
Step S101, data message is generated the first check code through preset algorithm by described host computer system.
In the present embodiment, host computer system is the cell phone mainboard that processor is integrated with MIPI-DSI function, shows mould
Group is the display module matched with cell phone mainboard power, running voltage etc..Cell phone mainboard with display module it
Between data transmission follow MIPI-DSI communications protocol, MIPI-DSI is that MIPI alliance carries for mobile device
Go out the serial line interface of a kind of high speed, low-power consumption, high-resolution can be met and show, reduce display module power consumption
Requirement.Cell phone mainboard needed according to CRC(cyclic redundancy check (CRC) when display module sends data message) or
ECC (error checking and correction) algorithm generates the first check code.Step S102, described host computer system is by described number
It is believed that breath and described first check code are encapsulated as packet and are sent to described display module.
It is i.e. that aforesaid first check code and corresponding data information are sent to show module in the lump.The work of check code
With being, when data message produces mistake in transmitting procedure, data message receiving terminal can pass through the first school
Test code and show that the data message of reception is the most identical with the data message sent, even can be according to the first check code
Check the position of wrong data in the data message of reception and correct.
As: in MIPI-DSI communication protocol, host computer system sends Pixel Information in a serial fashion or control refers to
The data messages such as order give display module, and follow specific communication mode during transmission, including number
According to bag form and error correcting and detecting mechanism.Information transmits and uses data packet format, including long data bag and short data
Bag.
In the present embodiment, the first check code can be ECC code.Host computer system is difference before and after data message
Add start bit and check code, be packaged into packet together, and be sent to show module in units of packet.
Step S103, described display module receives and parses through described packet and obtains described data message and described
First check code.
As: packet that display module Receiving Host system sends also is followed MIPI-DSI communications protocol and is resolved
To data message and ECC code, and the data message in multiple packets is combined revert to original
Data information sequence.
Step S104, described display module generates according to described preset algorithm and the described data message received
Second check code.
If: display module is according to generating the phases such as CRC or ECC that the first check code used with host computer system
Same algorithm and the data message received are calculated the second check code.
Step S105, more described first check code of described display module and described second check code, described
When first check code is different from described second check code, produce error flag information.
Described error flag information generally represents with " 0 " or " 1 ", is stored in the drive circuit of display module
In depositor, different for representing the data message of the data message that receives and actual transmission, follow-up can root
Take countermeasure according to this error flag position, as data message is retransmitted, or carry out error correction etc..
Step S106, described host computer system detects and responds described error flag information, sends initialization information
To described display module.
Step S107, described display module initializes according to described initialization information.
Described initialization information is the setup code that described host computer system sends to described display module, described
Display module completes to drive in IC the parameter configuration such as the voltage of depositor according to setup code, arranges described aobvious
Then etc. showing the brightness of module displays, contrast, colour vividness etc., described host computer system to be received sends
Data message and the signal such as control instruction.Because applicant is during long-term mobile phone electrostatic test, send out
When existing electrostatic causes showing module exception, wherein this electrostatic can make described packet information on certain probability
Change, and then produce corresponding error flag information, to this end, said method is producing above-mentioned mistake mark
During will information, display module is initialized, increase method and the approach finding that display is abnormal so that aobvious
Show that the display performance of module is higher.
As in figure 2 it is shown, the functional block diagram of the display device 20 that it is a preferred embodiment of the present invention, including:
Host computer system 201 and display module 203, in the present embodiment, host computer system is that processor is integrated with MIPI-DSI
The cell phone mainboard of function, display module is the display module matched with cell phone mainboard power, running voltage etc..
Described host computer system 201 includes: verification unit 211, encapsulation unit 212 and control unit 213.Display mould
Group 203 includes: resolution unit 231, authentication unit 232, indexing unit 233 and initialization unit 234.
Verification unit 211 is for generating the first check code by data message through preset algorithm.
Encapsulation unit 212 is for being encapsulated as packet by described data message and described first check code and send.
Resolution unit 231 is used for receiving and parsing through described packet and obtains described data message and described first school
Test code.
Authentication unit 232 is for generating the second school according to described preset algorithm and the described data message received
Test code.
Indexing unit 233 is for relatively described first check code and described second check code, in described first school
Test code different from described second check code time, produce error flag information.
Described error flag information generally represents with " 0 " or " 1 ", is stored in the drive circuit of display module
In depositor, different for representing the data message of the data message that receives and actual transmission, follow-up can root
Take countermeasure according to this error flag position, as data message is retransmitted, or carry out error correction etc..
Control unit 213 is used for detecting and responding described error flag information, sends initialization information.
Initialization unit 234 is for initializing according to described initialization information.
To this end, display module 203 is carried out by above-mentioned display device 20 when producing above-mentioned error flag information
Initialize, increase method and the approach finding that display is abnormal so that the display performance of display device 20 is higher.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (6)
1. an electrostatic protection method for display device, described display device includes host computer system and display module, it is characterised in that the electrostatic protection method of described display device comprises the steps:
Data message is generated the first check code through preset algorithm by described host computer system；
Described data message and described first check code are encapsulated as packet and are sent to described display module by described host computer system；
Described display module receives and parses through and obtains described data message and described first check code；
Described display module generates the second check code according to described preset algorithm and the described data message received；
More described first check code of described display module and described second check code, when described first check code is different from described second check code, produce error flag information；
Described host computer system detects and responds described error flag information, sends initialization information to described display module；
Described display module initializes according to described initialization information.
The electrostatic protection method of display device the most according to claim 1, it is characterised in that described host computer system is cell phone mainboard, described display module is that mobile phone shows module.
The electrostatic protection method of display device the most according to claim 1, it is characterised in that described error flag information is stored in the drive circuit depositor of described display module.
4. a display device, including host computer system and display module, it is characterised in that described host computer system includes: verification unit, encapsulation unit and control unit, and described display module includes: resolution unit, authentication unit, indexing unit and initialization unit,
Described verification unit is for generating the first check code by data message through preset algorithm；
Described encapsulation unit is for being encapsulated as packet by described data message and described first check code and send；
Described resolution unit is used for receiving and parsing through described packet and obtains described data message and described first check code；
Described authentication unit is for generating the second check code according to described preset algorithm and the described data message received；
Described indexing unit is for relatively described first check code and described second check code, when described first check code is different from described second check code, produces error flag information；
Described control unit is used for detecting and responding described error flag information, sends initialization information；
Described initialization unit is for initializing according to described initialization information.
Display device the most according to claim 4, it is characterised in that described host computer system is cell phone mainboard, described display module is that mobile phone shows module.
Display device the most according to claim 4, it is characterised in that described error flag information is stored in the drive circuit depositor of described display module.
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| CN201310574473.8A CN103685732B (en) | 2013-11-15 | 2013-11-15 | display device and electrostatic protection method thereof |
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| CN201310574473.8A CN103685732B (en) | 2013-11-15 | 2013-11-15 | display device and electrostatic protection method thereof |
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| CN103685732B true CN103685732B (en) | 2017-01-04 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109918033B (en) * | 2016-08-22 | 2022-07-26 | 浙江众合科技股份有限公司 | Vehicle-mounted display equipment display memory safety detection method |
| CN106649017A (en) * | 2016-12-30 | 2017-05-10 | 珠海市魅族科技有限公司 | On screen display abnormality processing method and mobile terminal |
| CN110868266B (en) * | 2019-10-31 | 2022-01-28 | 维沃移动通信有限公司 | Electronic equipment and information processing method |
| CN111443887A (en) * | 2020-03-26 | 2020-07-24 | 京东方科技集团股份有限公司 | Display driving chip and data processing method thereof |
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| KR100218504B1 (en) * | 1996-11-13 | 1999-09-01 | 윤종용 | Static electricity protecting circuit of liquid crystal display device |
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Free format text: FORMER OWNER: HUIZHOU TECHNE GROUP CO., LTD. Effective date: 20140715 |
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Effective date of registration: 20140715 Address after: 516003 Guangdong province Huizhou Jiangbei Road No. 21 Yunshan Yunshan Industrial Zone No. nine TCL Applicant after: TCL Display Technology (Huizhou) Co., Ltd. Address before: 516003 Guangdong province Huizhou Jiangbei Road No. 21 Yunshan Yunshan Industrial Zone No. nine TCL Applicant before: TCL Display Technology (Huizhou) Co., Ltd. Applicant before: Huizhou Techne Group Co., Ltd. |
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Address after: 516003 Guangdong province Huizhou Zhongkai hi tech Development Zone No. 23 District Patentee after: Hua Hin photoelectric technology (Huizhou) Co., Ltd. Address before: 516003 Guangdong province Huizhou Jiangbei Road No. 21 Yunshan Yunshan Industrial Zone No. nine TCL Patentee before: TCL Display Technology (Huizhou) Co., Ltd. |
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