CN106444115A - Rebooting system and method for liquid crystal display advisement player - Google Patents
Rebooting system and method for liquid crystal display advisement player Download PDFInfo
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- CN106444115A CN106444115A CN201610779703.8A CN201610779703A CN106444115A CN 106444115 A CN106444115 A CN 106444115A CN 201610779703 A CN201610779703 A CN 201610779703A CN 106444115 A CN106444115 A CN 106444115A
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- crystal display
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/13306—Circuit arrangements or driving methods for the control of single liquid crystal cells
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
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- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Nonlinear Science (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Mathematical Physics (AREA)
- Optics & Photonics (AREA)
- Computer Hardware Design (AREA)
- Theoretical Computer Science (AREA)
- Controls And Circuits For Display Device (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention provides a rebooting system and method for a liquid crystal display advisement player and relates to the field of liquid crystal display. According to the rebooting system for the liquid crystal display advisement player, the mode of arranging a light-sensitive probe and a rebooting signal generator is adopted, the light-sensitive probe is arranged in an effective display area of a liquid crystal display screen, a driver board can monitor brightness information detected by the light-sensitive probe, and in this way, when the brightness value of the liquid crystal display screen continues being low, the rebooting signal generator generates a rebooting signal capable of rebooting the driver board. The system can automatically reboot the driver board when the liquid crystal display screen does not display a picture normally, and the self-recovery capability of the liquid crystal display advisement player is improved.
Description
Technical field
The present invention relates to field of liquid crystal display, restart system and method in particular to liquid crystal advertiser.
Background technology
In recent years, with the development of business, advertisement machine is seen everywhere in public places such as market, airport, stations.
The agent structure of liquid crystal advertiser has several as follows, as shown in Figure 1：There are hardware installation region 11, effective display area
Domain 12, front frame 13, glass 14, liquid crystal display screen 15 and bonnet 16.Wherein, it is provided with driving plate, driving plate in hardware installation region 11
Video signal can be exported to liquid crystal display screen 15 after the power-up, and then liquid crystal display screen 15 shows corresponding figure after recognizing this video signal
Picture, completes the work of liquid crystal display.
But in actual use, there is compatibility issue between some liquid crystal display screens 15 and driving plate, and then, when driving plate exists
Upper electricity, and send after video signal to liquid crystal display screen 15, liquid crystal display screen 15 may lose to the identification of the video signal that driving plate exports
Lose.Showing as screen only has backlight bright, and no picture shows, this namely goes up electric randomness blank screen phenomenon.Now, if driving plate
Keep initial power-up state, then liquid crystal display screen 15 can be constantly in black state, i.e. liquid crystal display screen 15 cannot automatically restore to normally
The state of display.
For this kind of situation, common solution is that the artificial display situation to liquid crystal display screen 15 monitors, and ought send out
Electricity in existing driving plate, and when liquid crystal display screen 15 is continuously in blank screen, manually restart driving plate, so that driving plate re-powers,
And then make liquid crystal advertiser normal work.
Content of the invention
It is an object of the invention to provide liquid crystal advertiser restarts system and method, with improve liquid crystal advertiser work from
Dynamicization degree.
In a first aspect, the embodiment of the present invention provides liquid crystal advertiser to restart system, including：
It is arranged on light sensation probe, detector and the Restart Signal life electrically connecting with detector of liquid crystal display screen effective display area domain
Grow up to be a useful person；
Described detector, for the brightness value of detection liquid crystal display screen of being popped one's head in by light sensation, and the brightness value when described liquid crystal display screen
During less than predetermined threshold value, generate light sensation trigger；
Described Restart Signal maker, for generating driving plate Restart Signal according to described light sensation trigger.
In conjunction with a first aspect, embodiments providing the first possible embodiment of first aspect, wherein, institute
State light sensation to pop one's head in as two, and be separately positioned at the different corners of described liquid crystal display screen.
In conjunction with a first aspect, the possible embodiment of the second that embodiments provides first aspect, wherein, two
Individual described light sensation probe is separately positioned on non-conterminous two corners of described liquid crystal display screen.
In conjunction with a first aspect, embodiments providing the third possible embodiment of first aspect, wherein, institute
State Restart Signal maker and include counting circuit and signal generating circuit；
Described detector, described counting circuit and described signal generating circuit sequential series；
Described detector, is further used for being spaced at every predetermined time being popped one's head in by light sensation and detects the brightness of liquid crystal display screen
Value, when detecting every time, if the brightness value of described liquid crystal display screen is less than predetermined threshold value, generates the first trigger；
Described counting circuit, for the accumulative number of times continuously receiving described first trigger, and when described accumulative
When number of times exceedes default first amount threshold, trigger generative circuit works；
Described signal generating circuit, for generating driving plate Restart Signal.
In conjunction with a first aspect, embodiments providing the 4th kind of possible embodiment of first aspect, wherein, institute
State detector, be further used for, when the brightness value of described liquid crystal display screen is higher than predetermined threshold value, generating the second trigger；
Described counting circuit, is further used for when receiving described second trigger, will be clear for described accumulative number of times
Zero.
In conjunction with a first aspect, embodiments providing the 5th kind of possible embodiment of first aspect, wherein, go back
Including timing time adjustor, described timing time adjustor is electrically connected with described counting circuit and described detector respectively, uses
In when accumulative number of times described in described counting circuit is more than the second amount threshold, reduce the brightness to liquid crystal display screen for the described detector
The time interval that value is detected；Described second amount threshold is less than described first amount threshold.
In conjunction with a first aspect, embodiments providing the 6th kind of possible embodiment of first aspect, wherein, institute
State light sensation probe to be located between liquid crystal display screen and glassy layer, and described light sensation probe be located at liquid crystal display screen effective display area domain and front frame it
Between.
In conjunction with a first aspect, embodiments providing the 7th kind of possible embodiment of first aspect, wherein, institute
State counting circuit, be further used for, after trigger generative circuit works, the number of times currently adding up being reset.
In conjunction with a first aspect, embodiments providing the 8th kind of possible embodiment of first aspect, wherein, go back
Including the temperature sensor being arranged near described driving plate, and the alarm electrically connecting with described temperature sensor；
Described temperature sensor, for detecting the temperature value of described driving plate, when described temperature value exceedes predetermined threshold value,
Drive described alarm work.
Second aspect, the embodiment of the present invention additionally provides liquid crystal advertiser method for restarting, including：
Popped one's head in by light sensation and detect the brightness value of liquid crystal display screen, and when the brightness value of described liquid crystal display screen is less than predetermined threshold value,
Generate light sensation trigger；Described light sensation probe is arranged in liquid crystal display screen effective display area domain；
Driving plate Restart Signal is generated according to described light sensation trigger by Restart Signal maker.
Liquid crystal advertiser provided in an embodiment of the present invention restarts system, using setting light sensation probe and Restart Signal maker
Mode, and affected by compatibility issue between liquid crystal advertiser and driving plate in prior art, in driving plate to liquid crystal
After advertisement machine output video signal, liquid crystal advertiser cannot normal display picture, be now merely able to by manually restarting driving
The mode of plate, to make driving plate again send video signal to liquid crystal advertiser, to make LCDs normal work compare, its
Light sensation probe is provided with by the effective display area domain in liquid crystal display screen, and, light sensation probe can be in the brightness of detection liquid crystal display screen
When being worth too low, generate light sensation trigger, and then make Restart Signal maker generate the driving plate weight that driving plate can be made to restart
Open signal.This system can automatically make driving plate restart when display screen non-display picture, improves driving plate control
Automaticity.
For enabling the above objects, features and advantages of the present invention to become apparent, preferred embodiment cited below particularly, and coordinate
Appended accompanying drawing, is described in detail below.
Brief description
In order to be illustrated more clearly that the technical scheme of the embodiment of the present invention, below will be attached to use required in embodiment
Figure is briefly described it will be appreciated that the following drawings illustrate only certain embodiments of the present invention, and it is right to be therefore not construed as
The restriction of scope, for those of ordinary skill in the art, on the premise of not paying creative work, can also be according to this
A little accompanying drawings obtain other related accompanying drawings.
Fig. 1 shows the physical arrangement of liquid crystal advertiser in correlation technique；
Fig. 2 shows that the liquid crystal advertiser that the embodiment of the present invention is provided restarts structure in liquid crystal advertiser for the system
(vertical view visual angle)；
Fig. 3 shows that the liquid crystal advertiser that the embodiment of the present invention is provided restarts structure in liquid crystal advertiser for the system
(front viewing angle)；
Fig. 4 shows that the liquid crystal advertiser that the embodiment of the present invention is provided restarts the basic circuit Organization Chart of system.
Specific embodiment
Below in conjunction with accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Ground description is it is clear that described embodiment is only a part of embodiment of the present invention, rather than whole embodiments.Generally exist
The assembly of the embodiment of the present invention described and illustrated in accompanying drawing can be arranged with various different configurations and design herein.Cause
This, be not intended to limit claimed invention to the detailed description of the embodiments of the invention providing in the accompanying drawings below
Scope, but it is merely representative of the selected embodiment of the present invention.Based on embodiments of the invention, those skilled in the art are not doing
The every other embodiment being obtained on the premise of going out creative work, broadly falls into the scope of protection of the invention.
In correlation technique, the signal such as HDMI, VGA, DVI that mainboard is mainly inputted by driving plate is converted into needed for liquid crystal display screen
Video signal, and this video signal is exported on liquid crystal display screen.Because the compatibility between liquid crystal display screen and driving plate may be deposited
In problem, this can lead to driving plate to after liquid crystal display screen output video signal, and liquid crystal display screen has certain probability meeting recognition failures, and this just leads
Cause liquid crystal display screen meeting blank screen.After black screen of liquid crystal screen, the video signal of driving plate output is normal, but driving plate cannot detect
The working condition of liquid crystal display screen, that is, driving plate itself cannot know liquid crystal display screen either with or without blank screen.Therefore blank screen phenomenon goes out
After now, display device is unable to this fault of automatic detection and is driven the action that plate is restarted, also just cannot be automatically by liquid crystal display screen
Display recover normal.
Especially in much public display fields, liquid crystal advertiser is all automatically turn on or off at set-up time (as at the 8 points-noon of night
2 points of this time periods at night carry out the broadcasting of video pictures).If display device starting-up can not find in time after blank screen and solve
Certainly, businessman's image can be made impaired and bring economic loss.Although can in the way of using artificial monitoring, when in driving plate electricity, and
After normal display picture is not had on liquid crystal display screen, manually power-off restarting is carried out to driving plate, to solve the problems, such as blank screen, but this
Plant mode of operation and can bring several drawbacks as follows：
1, the personnel of needing to arrange for are patrolled and examined, and when black screen of liquid crystal screen, carry out power-off restarting to driving plate manually.
2 it is impossible to find blank screen problem in time.That is, liquid crystal display screen starts abnormal blank screen, finds that liquid crystal display screen is black to staff
Screen is very long for this period, has reduced Consumer's Experience.
3, in order to restart driving plate, need to go up electricity again (except driving plate in display device to the power-off of whole display device elder generation
Also have other operating circuits, these operating circuits need to restart together), time length, action are big, and can be hard in impact equipment
The service life of the hardware such as disk.
Additionally, those skilled in the art would generally solve the problems, such as randomness blank screen by way of changing hardware, but
For manufacturer, after display device is produced, carry out substantial amounts of hardware replacement and can consume very big Financial cost, week
Phase property is also very long.Particularly with solving large batch of problem after sale, its input is huge.In view of these situations above-mentioned, this
Application provides liquid crystal advertiser and restarts system and method, and this system and method is primarily directed in public display field, presses
When automatically actuated liquid crystal advertiser (liquid crystal advertiser not having staff's Non-follow control to start) and design.
As in Figure 2-4, this liquid crystal advertiser is restarted system and is included：It is arranged on the light of liquid crystal display screen 15 effective display area domain 12
Sense probe 101, detector and the Restart Signal maker electrically connecting with detector；
Described detector, for the brightness value by light sensation probe 101 detection liquid crystal display screen 15, and when described liquid crystal display screen 15
When brightness value is less than predetermined threshold value, generate light sensation trigger；
Described Restart Signal maker, for generating driving plate Restart Signal according to described light sensation trigger.
Wherein, as shown in Figure 2, the effective display area domain 12 of liquid crystal display screen refers to liquid crystal display screen 15 towards front frame 13 side
Region, and this effective display area domain 12 is when liquid crystal display screen 15 normal work, can carry out the region that picture shows.For
Avoid light sensation probe 101 to receive extraneous light (as natural light), and then the signal of generation error is it should pop one's head in light sensation
101 photosensitive side is attached on liquid crystal display screen 15 (or being arranged in liquid crystal display screen 15 proximity), to avoid the nature in the external world
Light is radiated on the photosensitive side of light sensation probe 101 after the reflection of liquid crystal display screen 15；Or can be in the week of light sensation probe 101
Portion installs the shade of the hollow cavity formula of a side opening.This shade can be in bowl-type, and the openings snap-fit of shade exists
In the effective display area domain 12 of liquid crystal display screen 15, and then form a relatively airtight space, light sensation probe 101 is located at this confined air
Between in.Because shade is opaque, it is to avoid outside natural light enters in this confined space, and then light sensation probe
101 are merely able to the light that the effective display area domain 12 of liquid crystal display screen 15 is sent is detected.It should be noted that shade is concrete
Shape and structure, can be adjusted according to specifically used scene, those skilled in the art are without set by inventive improvements
The light sensation probe 101 including shade (as added, on light sensation probe 101, shell, the dark slide playing interception) of meter
And its deformation, belong in protection scope of the present invention.The set location of light sensation probe 101 can be the effectively aobvious of liquid crystal display screen 15
Show the optional position in region 12, be preferably provided at the corner of liquid crystal display screen 15, so it can be avoided that impact user watches liquid crystal display screen
Picture shown by 15.
Further, in order to avoid the normal viewing having influence on user of light sensation probe 101 is it should set light sensation probe 101
Put between liquid crystal display screen 15 and 14 layers of glass, and described light sensation probe 101 is located between effective display area domain 12 and front frame 13.As
Shown in Fig. 2, on vertical direction, the right edge of the effective display area domain 12 of the left margin of front frame 13 and liquid crystal display screen 15 is that have one
Divide overlap, user cannot see the picture (being blocked by front frame 13) of a part of effective display area domain 12 of this overlap, because
Light sensation probe 101 can be arranged on the brightness of the effective display area domain 12 that both can detect liquid crystal display screen 15 on this position by this
Value, does not interfere with the viewing of user again.
Specifically, the form that implements of light sensation probe 101 has multiple, light sensor as designed by based on photoconductive resistance
Device etc..No matter which kind of light sensation probe 101, its operation principle is all based on the brightness value of liquid crystal display screen 15 to generate corresponding electric signal
, this liquid crystal advertiser is restarted in the core scheme of system, and detector should be less than default in the brightness value of described liquid crystal display screen 15
During threshold value, (now, the amplitude of the signal of telecommunication that light sensation probe 101 is generated is undesirable, and the picture of liquid crystal display screen 15 display is described
For black), generate light sensation trigger, and by way of wired or wireless transmission, this light sensation trigger is sent to and restart
Signal generator.Afterwards, just driving plate Restart Signal can be generated according to this light sensation trigger by Restart Signal maker, and
Will according to this driving plate Restart Signal by corresponding device (such as driving plate itself, or other are independent of the restarting equipment of driving plate)
Driving plate is restarted.Restarted can only have driving plate herein, and not by liquid crystal display in addition to driving plate
Structure restarted.
It should be noted that it is to start after driving plate works on power that liquid crystal advertiser provided herein restarts system
, it is, at least one of detector and Restart Signal maker should be (as to liquid crystal display screens after driving plate works on power
After 15 send video signal, or driving plate is after the power-up) work.The mode implementing is a lot, and two kind tools are provided below
Body implementation：
The first, Restart Signal maker is electrically connected with driving plate, and driving plate is sending video letter to liquid crystal display screen 15
Number when, send drive signal to Restart Signal maker, so that drive signal maker is started working simultaneously.This kind of situation
Under, light sensation probe 101 is in running order all the time.It is of course also possible to be set to detector electrically connect with driving plate, or inspection
Survey the form that device and Restart Signal maker are all electrically connected with driving plate.
Second, it is also possible to Restart Signal maker is set to start by set date when driving plate is start by set date
Form, such as driving plate is to start (driving plate just exports video signal to liquid crystal display screen 15 after starting) 8 points of daily evening, then weight
Open signal generator and be also provided in late 8 points of startups (now light sensation probe 101 is to be constantly in starting state), i.e. restart letter
Number generative circuit has and the driving plate identical start by set date time, and after Restart Signal maker starts, is used further to basis
Described light sensation trigger generates driving plate Restart Signal.It is of course also possible to be set to the form that detector is start by set date, or
The form that person is detector and Restart Signal maker is all start by set date.
The brightness value of the liquid crystal display screen 15 arriving by light sensation probe 101 one-time detection merely is too low, is judged as at liquid crystal display screen 15
In improper dispaly state, and then to restart driving plate be not accurate enough, in order to improve the accuracy restarting driving plate, the application
Provide two kinds of different improvement directions and to restart system to liquid crystal advertiser and be optimized, below this two improvement directions are divided
Do not illustrate：
First improvement direction, to improve, by the way of increasing light sensation probe 101, the accuracy restarting driving plate.Specifically
, light sensation probe 101 could be arranged to multiple (at least two), when light sensation probe 101 is set to two, can be by this
Two light sensation probes 101 are separately positioned at the different corners of liquid crystal display screen 15.As shown in figure 3, liquid crystal display screen 15 is rectangular liquid
During brilliant screen, this two light sensation probes 101 can be separately positioned on the upper left corner and the upper right corner；Can also be by this two light sensation probes
101 are separately positioned on the lower left corner and the lower right corner etc..
Further, the imaging rule according to liquid crystal advertiser, generally, shown by two relative corners of square liquid crystal display screen
Picture is different, and such as A corner (as the upper left corner) is shown as black, then the generally light tone shown in B corner (as the lower right corner),
Therefore, 101 are popped one's head in respectively when this two relative corners in the presence of two light sensations, if picture normally shows, this two biographies
Sensor generally will not be detected simultaneously by the brightness of liquid crystal display screen 15, and too low (namely generally video pictures will not be black, may
The first half of picture is black, and lower half is light tone；Or the picture only lower right corner is black), that is, normal in picture
When display, driving plate will not be made to restart.More specifically, if liquid crystal display screen is not rectangle, but other shape changeable, then
As long as ensureing that this two light sensation probes 101 are located at non-conterminous first corner and the second corner respectively.
Second improvement direction, restarts driving plate to improve by the way of increasing times of collection and increase judgment rule
Accuracy.When implementing, described Restart Signal maker includes counting circuit and signal generating circuit；Wherein, described detection
Device, described counting circuit and described signal generating circuit sequential series；
Described detector, is further used for being spaced at every predetermined time by light sensation probe 101 detection liquid crystal display screen 15
Brightness value, when detecting every time, if the brightness value of described liquid crystal display screen 15 is less than predetermined threshold value, generates the first trigger and (drives
One kind of plate Restart Signal)；
Described counting circuit, for the accumulative number of times continuously receiving described first trigger, and when described accumulative
When number of times exceedes default first amount threshold, trigger generative circuit works；
Described signal generating circuit, for generating driving plate Restart Signal.
Wherein, detector is preferably once judged to the brightness value of liquid crystal display screen 15 every 1S.Certainly, between the specific time
Every can be configured according to environment by user.Brightness when the liquid crystal display screen 15 that light sensation 101 continuous a period of times of probe collect
When value is below predetermined threshold value, then (continuously referring to herein is continuous on number of times, that is, often to continuously generate the first trigger
Secondary generation is all the first trigger), and the counting circuit that is sent to of these the first trigger signal interval (is generated one the
As soon as trigger, this first trigger is sent to counting circuit, interval time generates at once, then sends interval time).
Then, counting circuit statistics continuously receives the number of times of the first trigger, and when the number of times of statistics is more than the first amount threshold
When, trigger generative circuit works.The first amount threshold herein can be 10 or 15 times.
In actually used, picture is likely to be the blank screen of continuously several seconds (as during movie, the switching of head picture has
The blank screen of long period), this several seconds time detectors of blank screen can produce multiple first triggers, and then counting circuit is each
Receive and will once be added up (cumulative number+1) during the first trigger.After blank screen terminates, liquid crystal display screen 15 will enter
To normal picture dispaly state, now, then the number of times having added up before should be zeroed out, otherwise cumulative number meeting one
Straight increase is gone down, and will restart driving plate when reaching the first amount threshold.Thus, adding up in order to avoid the first counting circuit
Quantity malfunctions, and also should be arranged as follows：
Described detector, is further used for, when the brightness value of described liquid crystal display screen 15 is higher than predetermined threshold value, generating second and touching
Signal (another kind of driving plate Restart Signal)；
Described counting circuit, is further used for when receiving described second trigger, will be clear for described accumulative number of times
Zero.
Generate the second trigger except above-mentioned when the brightness value that detector judges liquid crystal display screen 15 is higher than predetermined threshold value,
And then the number of times being accumulated counting circuit resets, counting circuit also should be (as signal after the work of trigger generative circuit
After generative circuit sends driving plate Restart Signal), the zeroing number that will currently add up.
In actually used, the picture situation of change of liquid crystal display screen 15 is possibly diversified, and the mode of its change is play
Content is determined, therefore, when having the certainly possible brightness value when each detection liquid crystal display screen 15 of light sensation probe 101, just liquid crystal display screen
15 is black picture, and this kind of situation may will result in the erroneous judgement of counting circuit when occurring.For this kind of situation, inventor is above-mentioned
On disclosed architecture basics, increased timing time adjustor to overcome the generation of this kind of problem.
Specifically, liquid crystal advertiser provided herein is restarted system and is also included timing time adjustor, described timing
Time adjusting device is electrically connected with described counting circuit and described detector respectively, for secondary when add up described in described counting circuit
When number is more than the second amount threshold, reduce the time interval that described detector is detected to the brightness value of liquid crystal display screen 15；Wherein
Described second amount threshold is less than described first amount threshold.
When the assay intervals of light sensation probe 101 reduce, just it is likely to detect the picture that LCD screen lights, and then
The number of times adding up before can be reset by counting circuit, it is to avoid makes the generation driving plate Restart Signal of signal generating circuit mistake.When
So, on this basis, can also reduce what detector was detected to the brightness value of liquid crystal display screen 15 in timing time adjustor
While time interval, improve the numerical value of the first amount threshold, to reduce the probability of flase drop further.
Illustrate improved content in terms of two different above, when specifically used, can only use said one side
To improvement project it is also possible to two improvement projects use simultaneously.
Although being able to detect that the whether normal display picture of liquid crystal display screen 15 using light sensation probe 101, cannot determine
Problem occur where, above provided in scheme be all to think due to the compatibility issue of driving plate and liquid crystal display screen 15, lead
Cause liquid crystal display screen 15 to identify the video signal failure that driving plate is exported, in turn result in and show unsuccessfully, but show and be also likely to be unsuccessfully
Led to due to other reasonses.Therefore, liquid crystal advertiser provided herein is restarted system and is also included being arranged on described driving
Temperature sensor near plate, and the alarm electrically connecting with described temperature sensor；Described temperature sensor, for detecting
The temperature value of described driving plate, when described temperature value exceedes predetermined threshold value, drives described alarm work.Namely work as driving
When the temperature value of plate is too high, (the driving plate temperature as the reasons such as driving plate partial circuit fault, short circuit cause is too high, is just exceeding it
Often operating temperature), now, restarting driving plate is of no avail it should drive alarm work.
Below, to illustrate that liquid crystal advertiser provided herein restarts system with three specific examples.
Example 1：
Liquid crystal display screen is square, and two light sensation probes (the first probe and the second probe) are separately positioned on the upper left corner of liquid crystal display screen
And the lower right corner.
All electrically connected with counting circuit by detector in the first probe and the second probe, and every collection in 1 second once
The brightness value of liquid crystal display screen, during work, the first probe continuous acquisition is less than light (the liquid crystal display screen institute of predetermined threshold value to 6 brightness values
The light sending), 6 the first triggers of detector maturation, and this 6 first triggers are sent to counting circuit；The
Two probe continuous acquisition are less than the light of predetermined threshold value to 6 brightness values, 6 the first triggers of detector maturation, and by this 6
Individual first trigger is sent to counting circuit.The number of times that now counting circuit is accumulated is 12 times, not yet reaches the first quantity
Threshold value (20 times).
Afterwards, the first probe collects the light that 1 brightness value is less than predetermined threshold value, 1 time first triggering of detector maturation
Signal, and this first trigger is sent to counting circuit, counting circuit cumulative number is 13 times；Second probe collects 1
Secondary brightness value is higher than the light of predetermined threshold value, 1 the second trigger of detector maturation, and this second trigger is sent to
Counting circuit, now counting circuit after receiving the second trigger, by the number of times having added up (13 times) clearing.
Example 2：
Liquid crystal display screen is square, and two light sensation probes (the first probe and the second probe) are separately positioned on the upper left corner of liquid crystal display screen
And the lower right corner.
All electrically connected with counting circuit by detector in the first probe and the second probe, and every collection in 1 second once
The brightness value of liquid crystal display screen, the light that detector collects when the first brightness value of light of collecting of probe and the second probe bright
When angle value is below predetermined threshold value, generate first trigger.
During work, the first probe continuous acquisition is less than the light (light that liquid crystal display screen is sent of predetermined threshold value to 9 brightness values
Line), the second probe continuous acquisition is less than the light of predetermined threshold value to 9 brightness values, 9 the first triggers of detector maturation,
And this 9 first triggers are sent to counting circuit.The number of times that now counting circuit is accumulated is 9 times, not yet reaches the
One amount threshold (10 times).
Afterwards, the first probe collects the light that 1 brightness value is less than predetermined threshold value, and the second probe collects 1 brightness
Value is higher than the light of predetermined threshold value, 1 the second trigger of detector maturation, and this second trigger is sent to counting electricity
Road, what now counting circuit added up is 10 times herein, has reached default amount threshold, just drive signal generation circuit work,
And then generate driving plate Restart Signal, afterwards, signal generating circuit sends the driving plate Restart Signal of generation to driving plate, makes
It is restarted.
Example 3：
Liquid crystal display screen is square, and two light sensation probes (the first probe and the second probe) are separately positioned on the upper left corner of liquid crystal display screen
And the lower right corner.
First probe and second probe all electrically connected with counting circuit by detector, counting circuit also with signal generation
Circuit electrically connects.Timing time adjustor is electrically connected with described counting circuit and detector respectively.Detector passes through first and pops one's head in
Every the brightness value of liquid crystal display screen effective display area domain of collection in 1.5 seconds, the second probe is effective every liquid crystal display screen of collection in 1 second
The brightness value (time interval that the light that i.e. two light sensations probe is sent to liquid crystal display screen is detected is different) of viewing area.
First stage, the first probe continuous acquisition is less than the light of predetermined threshold value, detector maturation 10 to 10 brightness values
Secondary first trigger；The first continuous acquisition of second probe is less than the light of predetermined threshold value, detector maturation 15 to 15 brightness values
Secondary first trigger.The number of times that now counting circuit is accumulated is 25 times, not yet reaches the first amount threshold (the first quantity threshold
It is worth for 40).Meanwhile, timing time adjustor detect counting circuit add up number of times reached the second amount threshold (second
Amount threshold is 25 times), now, timing time adjustor reduces detector to be carried out to the brightness of liquid crystal display screen by the first probe
The time interval of detection, and the time interval brightness of liquid crystal display screen being detected by the second probe, and be adjusted to：Detector
The light being sent in liquid crystal display screen effective display area domain of collection in 0.8 second by the first probe, detector passes through second
The light that probe is sent in liquid crystal display screen effective display area domain of collection in 0.5 second.
Second stage, the first probe continuous acquisition is less than the light of predetermined threshold value, detector maturation 5 times to 5 brightness values
First trigger；The first continuous acquisition of second probe is less than the light of predetermined threshold value to 8 brightness values, detector maturation 8 times the
One trigger.The number of times that now counting circuit is accumulated is 38 times, and (the first amount threshold is not yet to reach the first amount threshold
40).
Phase III, the first probe collects the light that 1 brightness value is less than predetermined threshold value, and detector becomes to touch for 1 time first
Signal, and this first trigger is sent to counting circuit, counting circuit cumulative number is 39 times；Second probe collects
1 brightness value is less than the light of predetermined threshold value, generates 1 the first trigger, and this first trigger is sent to counting
Circuit, now, counting circuit cumulative number is 40 times, has reached the first amount threshold, just drive signal generation circuit work,
And then generate driving plate Restart Signal, afterwards, signal generating circuit sends the driving plate Restart Signal of generation to driving plate, makes
It is restarted.
Except liquid crystal advertiser disclosed above restarts system, it is wide that this programme also discloses the liquid crystal corresponding with this system
Announcement machine method for restarting, comprises the steps：
Popped one's head in by light sensation and detect the brightness value of liquid crystal display screen, and when the brightness value of liquid crystal display screen is less than predetermined threshold value, generate
Light sensation trigger；Described light sensation probe is arranged in liquid crystal display screen effective display area domain；
Driving plate Restart Signal is generated according to described light sensation trigger by Restart Signal maker.
Preferably, described light sensation is popped one's head in as two, and is separately positioned at the different corners of described liquid crystal display screen.
Preferably, two described light sensation probes are separately positioned on non-conterminous two corners of described liquid crystal display screen.
Preferably, step is popped one's head in by light sensation and is detected the brightness value of liquid crystal display screen, and presets when the brightness value of liquid crystal display screen is less than
During threshold value, generate light sensation trigger and include：
Popped one's head in by light sensation and be spaced the brightness value of detection liquid crystal display screen at every predetermined time, when detecting every time, if described liquid
The brightness value of brilliant screen is less than predetermined threshold value, then generate the first trigger；
Step generates driving plate Restart Signal by Restart Signal maker according to described light sensation trigger and includes：
Add up to continuously receive the number of times of described first trigger by counting circuit, and when described accumulative number of times surpasses
When crossing default first amount threshold, generate driving plate Restart Signal.
Preferably, the method also includes：
When the brightness value of the described liquid crystal display screen detected by light sensation probe is higher than predetermined threshold value, generate the second triggering
Signal；
When enumerator receives described second trigger, the number of times that described enumerator is added up resets.
Preferably, the method also includes：
When accumulative number of times described in described counting circuit is more than the second amount threshold, reduced by timing time adjustor
The time interval that the light that described light sensation probe is sent to liquid crystal display screen is detected；Described second amount threshold is less than described the
One amount threshold.
Preferably, described light sensation probe is located between liquid crystal display screen and glassy layer, and described light sensation probe has positioned at liquid crystal display screen
Between effect viewing area and front frame.
Preferably, the method also includes：
After the work of trigger generative circuit, the number of times currently adding up is reset by counting circuit.
Preferably, the method also includes：
Detect the temperature value of described driving plate by temperature sensor, when described temperature value exceedes predetermined threshold value, temperature
Sensor drives described alarm work.
The above, the only specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, and any
Those familiar with the art the invention discloses technical scope in, change or replacement can be readily occurred in, all should contain
Cover within protection scope of the present invention.Therefore, protection scope of the present invention should described be defined by scope of the claims.
Claims (10)
1. liquid crystal advertiser restarts system it is characterised in that including：
The light sensation probe, detector and the Restart Signal being electrically connected with detector that are arranged on liquid crystal display screen effective display area domain are generated
Device；
Described detector, for the brightness value of detection liquid crystal display screen of being popped one's head in by light sensation, and when the brightness value of described liquid crystal display screen is less than
During predetermined threshold value, generate light sensation trigger；
Described Restart Signal maker, for generating driving plate Restart Signal according to described light sensation trigger.
2. liquid crystal advertiser according to claim 1 restarts system it is characterised in that described light sensation is popped one's head in as two, and
It is separately positioned at the different corners of described liquid crystal display screen.
3. liquid crystal advertiser according to claim 2 restarts system it is characterised in that two described light sensation probes set respectively
Put two corners non-conterminous in described liquid crystal display screen.
4. liquid crystal advertiser according to claim 1 restarts system it is characterised in that described Restart Signal maker includes
Counting circuit and signal generating circuit；
Described detector, described counting circuit and described signal generating circuit sequential series；
Described detector, is further used for being spaced at every predetermined time being popped one's head in by light sensation and detects the brightness value of liquid crystal display screen, often
During secondary detection, if the brightness value of described liquid crystal display screen is less than predetermined threshold value, generate the first trigger；
Described counting circuit, for the accumulative number of times continuously receiving described first trigger, and works as described accumulative number of times
When exceeding default first amount threshold, trigger generative circuit works；
Described signal generating circuit, for generating driving plate Restart Signal.
5. liquid crystal advertiser according to claim 4 restart system it is characterised in that
Described detector, is further used for, when the brightness value of described liquid crystal display screen is higher than predetermined threshold value, generating the second trigger；
Described counting circuit, is further used for, when receiving described second trigger, described accumulative number of times being reset.
6. liquid crystal advertiser according to claim 4 restarts system it is characterised in that also including timing time adjustor,
Described timing time adjustor is electrically connected with described counting circuit and described detector respectively, for when described in described counting circuit
When accumulative number of times is more than the second amount threshold, reduce between the time that described detector is detected the brightness value of liquid crystal display screen
Every；Described second amount threshold is less than described first amount threshold.
7. liquid crystal advertiser according to claim 1 restarts system it is characterised in that described light sensation probe is located at liquid crystal display screen
And glassy layer between, and described light sensation probe is located between liquid crystal display screen effective display area domain and front frame.
8. liquid crystal advertiser according to claim 4 restarts system it is characterised in that described counting circuit, uses further
In after the work of trigger generative circuit, the number of times currently adding up is reset.
9. liquid crystal advertiser according to claim 4 restarts system it is characterised in that also including being arranged on described driving plate
Neighbouring temperature sensor, and the alarm electrically connecting with described temperature sensor；
Described temperature sensor, for detecting the temperature value of described driving plate, when described temperature value exceedes predetermined threshold value, drives
Described alarm work.
10. liquid crystal advertiser method for restarting is it is characterised in that include：
Popped one's head in by light sensation and detect the brightness value of liquid crystal display screen, and when the brightness value of described liquid crystal display screen is less than predetermined threshold value, generate
Light sensation trigger；Described light sensation probe is arranged in liquid crystal display screen effective display area domain；
Driving plate Restart Signal is generated according to described light sensation trigger by Restart Signal maker.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610779703.8A CN106444115A (en) | 2016-08-30 | 2016-08-30 | Rebooting system and method for liquid crystal display advisement player |
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| CN201610779703.8A CN106444115A (en) | 2016-08-30 | 2016-08-30 | Rebooting system and method for liquid crystal display advisement player |
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| CN201610779703.8A Pending CN106444115A (en) | 2016-08-30 | 2016-08-30 | Rebooting system and method for liquid crystal display advisement player |
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