CN105206209B - The control method and device of display brightness - Google Patents

The control method and device of display brightness Download PDF

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Publication number
CN105206209B
CN105206209B CN201510711705.9A CN201510711705A CN105206209B CN 105206209 B CN105206209 B CN 105206209B CN 201510711705 A CN201510711705 A CN 201510711705A CN 105206209 B CN105206209 B CN 105206209B
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display
conducting
content
display device
control
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CN201510711705.9A
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Chinese (zh)
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CN105206209A (en
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朱俊
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广东美的制冷设备有限公司
美的集团股份有限公司
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Abstract

The invention discloses a kind of control method of display brightness, including step:After idsplay order is received, the corresponding content to be displayed of the idsplay order is obtained;Determine the conducting dutycycle that the content to be displayed is shown by display device;According to the conducting of conducting dutycycle control display device, to control display brightness of the content to be displayed on the display device.The invention also discloses a kind of control device of display brightness.Big difference will not occur for the display brightness the invention enables each display content, and then improve the display effect of content to be displayed.

Description

The control method and device of display brightness

Technical field

The present invention relates to the control method and device of air-conditioning technical field, more particularly to display brightness.

Background technology

At present, need to show some air conditioner operation parameters or regulation and control parameter during operation of air conditioner.The numeral of air-conditioning Display is made of two seven sections of common-anode light emitting diodes, as shown in Figure 1.The main control unit of display is different by controlling Diode current flow shows different numerals.When controlling display to show different display contents, it is only based on different The control of diode, i.e., the conducting hop count to diode are controlled.For example, in Fig. 1, when showing digital " 1 ", only a sections, Two sections of diode current flows of b sections.The display brightness of display is determined by the conducting hop count of diode.Therefore, in current this Under kind control mode, because that cannot adjust the brightness of each section of diode, the display brightness of each display content is different, causes to show The display effect of content is poor.

The above is only used to facilitate the understanding of the technical scheme, and is not represented and is recognized that the above is existing skill Art.

The content of the invention

It is a primary object of the present invention to provide a kind of control method and device of display brightness, it is intended to solve current Under this control mode, because that cannot adjust the brightness of each section of diode, the display brightness of each display content is different, causes to show Show the problem of display effect of content is poor.

To achieve the above object, the control method of a kind of display brightness provided by the invention, including step:

After idsplay order is received, the corresponding content to be displayed of the idsplay order is obtained;

Determine the conducting dutycycle that the content to be displayed is shown by display device;

According to the conducting of conducting dutycycle control display device, to control the content to be displayed in the display Display brightness on part.

Alternatively, it is described according to the conducting dutycycle control display device conducting the step of include:

Determine that the content to be displayed shows the conducting hop count of the sub-display part of required conducting on display device;

The conducting of each sub-display part of required conducting is controlled according to the conducting dutycycle.

Alternatively, described the step of determining the conducting dutycycle that the content to be displayed is shown by display device, includes:

Determine the benchmark conducting hop count of display device;

The conducting dutycycle of the content to be displayed is determined according to the conducting hop count and benchmark conducting hop count.

Alternatively, it is described according to the conducting dutycycle control display device conducting the step of include:

When next display cycle of display device arrives, judge whether the content shown by the display device occurs Change;

When the content shown by the display device does not change, display device is controlled according to the conducting dutycycle The display process of next display cycle;

When the content shown by the display device changes, display content and its correspondence after the change are determined New conducting dutycycle, according to the conducting of the new conducting dutycycle control display device, to control the new display Display brightness of the content on the display device.

Alternatively, after the step content to be displayed being updated on display device, further include:

Determine that content to be displayed shows the conducting hop count of the sub-display part of required conducting on display device;

Obtain the display brightness difference between the sub-display part of the required conducting;

Determine that the content to be displayed is shown by display device according to the display brightness difference and the content to be displayed The conducting dutycycle shown.

In addition, to achieve the above object, the present invention also provides a kind of control device of display brightness, including:

Acquisition module, for after idsplay order is received, obtaining the corresponding content to be displayed of the idsplay order;

Determining module, the conducting dutycycle shown for determining the content to be displayed by display device;

Control module, it is described to be shown interior to control for the conducting according to conducting dutycycle control display device Hold the display brightness on the display device.

Alternatively, the control module includes:

Determination unit, the required sub-display part turned on is shown for determining the content to be displayed on display device Turn on hop count;

Control unit, the conducting of each sub-display part for controlling required conducting according to the conducting dutycycle.

Alternatively, the determining module, is additionally operable to determine the benchmark conducting hop count of display device;It is additionally operable to

The conducting dutycycle of the content to be displayed is determined according to the conducting hop count and benchmark conducting hop count.

Alternatively, the control module further includes:

Judging unit, in the arrival of next display cycle of display device, judging shown by the display device Content whether change;

Described control unit, is additionally operable to, when the content shown by the display device does not change, lead according to described The display process of logical Duty ratio control display device next display cycle;

The determination unit, is additionally operable to, when the content shown by the display device changes, determine the change Display content and its corresponding new conducting dutycycle afterwards;

Described control unit, is additionally operable to the conducting according to the new conducting dutycycle control display device, to control State display brightness of the new display content on the display device.

Alternatively, the determining module, is additionally operable to determine the son that content to be displayed shows required conducting on display device The conducting hop count of display device;

The acquisition module, is additionally operable to obtain the display brightness difference between the sub-display part of the required conducting;

The determining module, is additionally operable to be determined according to the display brightness difference and the content to be displayed described to be shown The conducting dutycycle that content is shown by display device.

Mapping relations of the invention by pre-setting different contents to be displayed and conducting dutycycle, are adjusted different to be shown The conducting dutycycle of content adjusts the display brightness of each content to be displayed, effectively avoids display from showing different displays The difference of display brightness during content so that big difference will not occur for the brightness of each display content, and then improve to be shown The display effect of content.

Brief description of the drawings

Fig. 1 is the configuration diagram of display in one embodiment of the invention;

Fig. 2 is the flow diagram of the first embodiment of the control method of display brightness of the present invention;

Fig. 3 is the flow diagram of the second embodiment of the control method of display brightness of the present invention;

Fig. 4 is the schematic diagram of diode make-and-break time in one embodiment of the invention;

Fig. 5 is the flow diagram of the 3rd embodiment of the control method of display brightness of the present invention;

Fig. 6 is the flow diagram that display content periodically display is controlled in one embodiment of the invention;

Fig. 7 is the flow diagram of the fourth embodiment of the control method of display brightness of the present invention;

Fig. 8 is the high-level schematic functional block diagram of the preferred embodiment of the control device of display brightness of the present invention;

Fig. 9 is the refinement high-level schematic functional block diagram of one embodiment of control module in Fig. 8;

Figure 10 is the refinement high-level schematic functional block diagram of another embodiment of control module in Fig. 8.

The embodiments will be further described with reference to the accompanying drawings for the realization, the function and the advantages of the object of the present invention.

Embodiment

It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, it is not intended to limit the present invention.

The primary solutions of the embodiment of the present invention are:After idsplay order is received, obtain the idsplay order and correspond to Content to be displayed;Determine the conducting dutycycle that the content to be displayed is shown by display device;According to the conducting duty Than the conducting for controlling display device, to control display brightness of the content to be displayed on the display device.Pass through adjusting The conducting dutycycle of different contents to be displayed adjusts the display brightness of each content to be displayed, effectively avoids the display from showing The difference of display brightness during different display content so that big difference, Jin Erti will not occur for the brightness of each display content The high display effect of content to be displayed.

Under current this control mode, because that cannot adjust the brightness of each section of diode, each display content is shown The problem of showing brightness difference, causing the display effect of display content poor.

Based on the above problem, the present invention provides a kind of control method of display brightness.

With reference to Fig. 2, Fig. 2 is the flow diagram of the first embodiment of the control method of display brightness of the present invention.

In one embodiment, the control method of the display brightness includes:

Step S10, after idsplay order is received, obtains the corresponding content to be displayed of the idsplay order;

The executive agent of the control method of the display brightness can be the display of air-conditioning, the display of the air-conditioning Main control unit or air-conditioning, are preferably the display of air-conditioning, are the display board of air-conditioning.Further, the control of the display brightness Method processed can be realized by the client display brightness control program installed over the display.

In the present embodiment, user is when needing to control air-conditioning, or in the operational process of air-conditioning air-conditioning parameter it is aobvious During showing, it is necessary to when showing corresponding airconditioning control information or operation of air conditioner information, idsplay order is triggered, described in the triggering The process of idsplay order includes:1) triggered in airconditioning control parameter change;2) touched when the operating parameter of air-conditioning changes Hair;3) idsplay order based on air-conditioner remote control device is being received (for example, being triggered based on physical button or based on intelligence such as mobile phones Can terminal virtual key triggering) when trigger.What the triggering mode of the idsplay order listed above enumerated was merely exemplary, this Field technology personnel utilize the technological thought of the present invention, the triggering mode of other idsplay orders proposed according to its specific requirements In the guard interval of the present invention, herein without exhaustive one by one.

After idsplay order triggering, the display of the air-conditioning receives the idsplay order, refers to receiving display After order, the corresponding content to be displayed of the idsplay order is obtained.The content to be displayed can be numeral or word or picture etc. The relevant information of operation of air conditioner.The display of the air-conditioning is made of multistage diode, is preferably sent out by two seven sections of common-anodes Optical diode forms, as shown in Figure 1.The display passes through the content that controls different diode current flows to show different. Display described in one embodiment of the invention can also be to be made of multistage LED matrix, is formed in the present embodiment with diode Exemplified by describe.Specific LED matrix realize process and diode realize that process is similar, this is no longer going to repeat them.

Step S20, determines the conducting dutycycle that the content to be displayed is shown by display device;

After the content to be displayed is got, the content to be displayed is updated to display by the display of the air-conditioning On part, i.e. the content to be displayed is updated on diode.Prestore in advance on the display device of the air-conditioning to be shown interior Hold the incidence relation with the conducting dutycycle of display device, different display contents corresponds to the conducting that different display devices is shown Duty cycle, certainly, under some performances, two different display contents can correspond to same conducting dutycycle.For example, Reference table 1, is the contingency table of display content and conducting dutycycle.

Display content 17 18 19 20 29 E1 Conducting dutycycle 100% 55.6% 62.5% 45.5% 45.5% 71.4%

Table 1

When display content is 20 and 29, conducting dutycycle is identical, display content for 17,18,19, E1 when, conducting accounts for Sky is than different, and conducting dutycycle when being 20 and 29 from display content is also different.

When getting content to be displayed, according to the contingency table of above-mentioned display content and conducting dutycycle, described treat is determined The conducting dutycycle that display content is shown by display device, for example, when the content to be displayed is 20, the conducting duty Than being E1 in the content to be displayed, the conducting dutycycle is 71.4% for 45.5%.In an embodiment of the present invention, institute It can be multiple need contents to be shown to state content to be displayed, when getting multiple contents to be displayed, determine each to treat respectively The corresponding conducting dutycycle of display content.

Step S30, according to the conducting of conducting dutycycle control display device, to control the content to be displayed in institute State the display brightness on display device.

After the conducting dutycycle of content to be displayed is got, according to leading for conducting dutycycle control display device It is logical, to control display brightness of the content to be displayed on the display device.Diode is controlled to be accounted for according to the conducting Sky is than shining.For example, control needs certain section of LED lighting lighted and controls its luminous brightness.For example, to be shown interior Hold for 20, conducting dutycycle 45.5%, the content to be displayed is controlled in display device according to 45.5% conducting dutycycle On display.Conducting dutycycle be one by display ON time in the cycle and turn-on and turn-off time and the ratio between, pass through It is the visual persistence effect using human eye to adjust duty cycle adjustment display brightness, and visual persistence effect refers to what is seen when human eye After image disappears, human eye remains to continue to retain its image image of 0.1-0.5 seconds or so.When display turn-on and turn-off are quickly handed over During for carrying out, human eye can't see, the process that display lamp goes out, and change ON time therebetween shared by turn-on and turn-off total time Ratio (change duty cycle), human eye vision effect increase equivalent to the brightness for changing data pipe, duty cycle, then visual effect phase Increase when in display brightness;Duty cycle reduces, then visual effect reduces equivalent to display brightness.Therefore, by adjusting not The display brightness of each content to be displayed is adjusted with the conducting dutycycle of content to be displayed so that the brightness of each display content Big difference will not occur, and then improve the display effect of content to be displayed.

The present embodiment adjusts difference and waits to show by pre-setting the mapping relations of different contents to be displayed and conducting dutycycle Show the conducting dutycycle of content to adjust the display brightness of each content to be displayed, effectively avoid display show it is different aobvious The difference of display brightness when showing content so that big difference will not occur for the brightness of each display content, and then improves and wait to show Show the display effect of content.

As shown in figure 3, the second embodiment of the control method for display brightness of the present invention, the control based on above-mentioned display brightness The first embodiment of method processed, the process of the conducting according to conducting dutycycle control display device include:

Step S31, determines that the content to be displayed shows the conducting of the sub-display part of required conducting on display device Hop count;

Step S32, the conducting of each sub-display part of required conducting is controlled according to the conducting dutycycle.

Specifically, each display device includes multistage sub-display part, i.e. described with reference to figure 1 including multistage diode Sub-display part is by taking seven sections of diodes as an example.For example, reference table 2 and table 3, are incidence relation of the content to be displayed with turning on hop count Table.

Display content 1 2 3 4 5 6 7 8 9 0 Turn on hop count 2 5 5 4 5 6 3 7 6 6

Table 2

Display content 17 18 19 20 21 22 23 24 25 26 27 28 29 Turn on hop count 5 9 8 11 7 10 10 9 10 11 8 12 11 Display content 30 E0 E1 E2 E3 E4 E5 E6 E7 E8 E9 F0 Sd Turn on hop count 11 11 7 10 10 9 11 11 8 12 11 10 10

Table 3

Wherein, table 3 shows the conducting hop count of different content for double 8 displays of air-conditioning.

Based on above-mentioned table 2 and table 3.When display content is 1, conducting hop count is 2, with reference to figure 1, when display content is 1, Only need two sections of a sections, b sections diode current flows.The display brightness of display is determined by the conducting hop count of diode, in display not During with content, because the conducting hop count of diode is different, therefore, it can cause the brightness that display is shown that difference occurs.Determining to treat After the conducting dutycycle of display content, determine that the content to be displayed shows the sub-display part of required conducting on display device Conducting hop count;The conducting of each sub-display part of required conducting is controlled according to the conducting dutycycle.

Specifically, determine the benchmark conducting hop count of display device;

Leading for the content to be displayed is determined according to the conducting hop count of the sub-display part and benchmark conducting hop count Logical duty cycle.

(display content for turning on hop count minimum is 100% time on the basis of turning on the display content of hop count minimum Conducting), determine the conducting dutycycles of other display contents.Duty cycle formula is when showing different numerals:

Wherein, N is the conducting hop count of diode when display shows the display content.It is double that air-conditioning can be calculated by formula Conducting dutycycle when 8 displays show different content.Reference table 4,

Display content 17 18 19 20 21 22 23 24 25 Turn on hop count 5 9 8 11 7 10 10 9 10 Duty cycle 100% 55.6% 62.5% 45.5% 71.4% 50% 50% 55.6% 50% Display content 26 27 28 29 30 E0 E1 E2 E3 Turn on hop count 11 8 12 11 11 11 7 10 10

Duty cycle 45.5% 62.5% 31.7% 45.5% 45.5% 45.5% 71.4% 50% 50% Display content E4 E5 E6 E7 E8 E9 F0 Sd Turn on hop count 9 11 11 8 12 11 10 10 Duty cycle 55.6% 45.5% 45.5% 62.5% 31.7% 45.5% 50% 50%

Table 4

Specifically, determine the display cycle of display device;Institute is determined according to the display cycle and the conducting dutycycle State ON time and the turn-off time of display device;The logical of display device is controlled according to the ON time and the turn-off time It is disconnected.

For the frequency of display renewal display data exemplified by 20ms/ times, the display is receiving the number of display content According to rear, in the present embodiment, duty cycle is controlled by chronomere of 125 μ s.Wherein, the frequency and duty that display board updates the data All it is configurable option than chronomere, is not construed as limiting in the present invention.By taking display board shows 19 as an example, duty cycle 62.5% When, it is 12.5ms that can calculate the time turned in every 20ms, therefore, diode current flow in 20ms when display board shows 19 Time is 12.5ms, remaining 7.5ms shut-offs, so constantly circulation, as shown in Figure 4.By combining display conducting hop count and accounting for Sky is than adjusting the brightness that display shows different display contents so that brightness that different display contents are shown is more uniform, poor It is different small, improve the display effect of display content.

As shown in figure 5, the 3rd embodiment of the control method for display brightness of the present invention, the control based on above-mentioned display brightness The second embodiment of method processed, the process of the conducting according to conducting dutycycle control display device include:

Step S33, when next display cycle of display device arrives, judges the content shown by the display device Whether change;

Step S34, when the content shown by the display device does not change, controls according to the conducting dutycycle The display process of display device next display cycle;

Step S35, when the content shown by the display device changes, determines the display content after the change And its corresponding new conducting dutycycle, according to the conducting of the new conducting dutycycle control display device, with described in control Display brightness of the new display content on the display device.

In the present embodiment, when next display cycle arrives, the display is judged shown by the display device Content whether change, i.e. judge whether the display needs to show new display content, in the display device institute When the content of display does not change, according to the display of conducting dutycycle control display device next display cycle Journey;When the content shown by the display device changes, the display content after the change and its corresponding new is obtained Conducting dutycycle, according to the conducting of the new conducting dutycycle control display device, to control the new display content Display brightness on the display device.In the event of change, it is necessary to diode conduction duty cycle be reset, with more preferable The display brightness that display shows different content is adjusted, is maintained at when showing different display contents, under brightness change difference.

Specifically, with reference to figure 6, the flow diagram bag during the display control display content periodically display Include:1st, whether display content changes, if so, then implementation procedure 2, if it is not, then implementation procedure 4;2nd, calculated and led according to display content Logical duty cycle;3rd, according to the break-make of Duty ratio control diode;4th, the display refreshing time is reached, refreshes display content.

As shown in fig. 7, the fourth embodiment of the control method for display brightness of the present invention, the control based on above-mentioned display brightness The 3rd embodiment of method processed, after the process content to be displayed being updated on display device, further includes:

Step S40, determines that content to be displayed shows the conducting hop count of the sub-display part of required conducting on display device;

Step S50, obtains the display brightness difference between the sub-display part of the required conducting;

Step S60, it is aobvious to determine that the content to be displayed passes through according to the display brightness difference and the content to be displayed Show the conducting dutycycle that device is shown.

In the present embodiment, after the content to be displayed is updated on display device, determine content to be displayed aobvious Show the conducting hop count of the sub-display part of conducting needed for being shown on device, that is, determine that the content to be displayed needs several sections of diodes To show, it whether there is display brightness difference between the sub-display part of conducting required for judging, the display brightness difference can Obtained with the time installed based on diode, i.e. can obtain each diode according to diode losses and usage time Between display brightness difference, that is, obtain the display brightness difference of sub-display part.Required conducting sub-display part it Between there are, it is necessary to redistribute conducting dutycycle, that is, needing to compensate conducting dutycycle during display brightness difference, for example, Display content is 20, conducting hop count is 11, conducting dutycycle 45.5%, and there are during a conducting hop count breakage, conducting accounts for Empty ratio heightens 5%, can be carried out according to the display performance or conducting dutycycle of each diode with diode display performance Compensation.The present embodiment preferably adjusts the display brightness of display display content, into one by being compensated to conducting dutycycle Step improves the effect that display content is shown.

The present invention further provides a kind of control device of display brightness.

With reference to Fig. 8, Fig. 8 is the high-level schematic functional block diagram of the preferred embodiment of the control device of display brightness of the present invention.

In one embodiment, the control device of the display brightness includes:Acquisition module 10, determining module 20 and control mould Block 30.

The acquisition module 10, it is corresponding to be shown interior for after idsplay order is received, obtaining the idsplay order Hold;

In the present embodiment, user is when needing to control air-conditioning, or in the operational process of air-conditioning air-conditioning parameter it is aobvious During showing, it is necessary to when showing corresponding airconditioning control information or operation of air conditioner information, idsplay order is triggered, described in the triggering The process of idsplay order includes:1) triggered in airconditioning control parameter change;2) touched when the operating parameter of air-conditioning changes Hair;3) idsplay order based on air-conditioner remote control device is being received (for example, being triggered based on physical button or based on intelligence such as mobile phones Can terminal virtual key triggering) when trigger.What the triggering mode of the idsplay order listed above enumerated was merely exemplary, this Field technology personnel utilize the technological thought of the present invention, the triggering mode of other idsplay orders proposed according to its specific requirements In the guard interval of the present invention, herein without exhaustive one by one.

After idsplay order triggering, the display of the air-conditioning receives the idsplay order, refers to receiving display After order, acquisition module 10 obtains the corresponding content to be displayed of the idsplay order.The content to be displayed can be numeral or text The relevant information of the operation of air conditioner such as word or picture.The display of the air-conditioning is made of multistage diode, preferably by two seven Section common-anode light emitting diode composition, as shown in Figure 1.The display shows difference by controlling different diode current flows Content.The display can also be in an embodiment of the present invention is made of multistage LED matrix, in the present embodiment with two Described exemplified by pole pipe composition.Specific LED matrix realize process and diode realize that process is similar, no longer go to live in the household of one's in-laws on getting married one by one herein State.

The determining module 20, the conducting dutycycle shown for determining the content to be displayed by display device;

After the content to be displayed is got, the content to be displayed is updated on display device, i.e. treated described Display content is updated on diode.Prestore the leading of content to be displayed and display device on the display device of the air-conditioning in advance The incidence relation of logical duty cycle, different display contents corresponds to the conducting dutycycle that different display devices is shown, certainly, one Under a little performances, two different display contents can correspond to same conducting dutycycle.For example, reference table 1, in display Hold the contingency table with conducting dutycycle.Determining module 20 determines the conducting duty that the content to be displayed is shown by display device Than.

When display content is 20 and 29, conducting dutycycle is identical, display content for 17,18,19, E1 when, conducting accounts for Sky is than different, and conducting dutycycle when being 20 and 29 from display content is also different.

When getting content to be displayed, according to the contingency table of above-mentioned display content and conducting dutycycle, described treat is determined The conducting dutycycle that display content is shown by display device, for example, when the content to be displayed is 20, the conducting duty Than being E1 in the content to be displayed, the conducting dutycycle is 71.4% for 45.5%.In an embodiment of the present invention, institute It can be multiple need contents to be shown to state content to be displayed, when getting multiple contents to be displayed, determine each to treat respectively The corresponding conducting dutycycle of display content.

The control module 30, for the conducting according to conducting dutycycle control display device, to be treated described in control Display brightness of the display content on the display device.

After the conducting dutycycle of content to be displayed is got, control module 30 is controlled according to the conducting dutycycle and shown The conducting of device, to control display brightness of the content to be displayed on the display device.Diode is controlled according to institute Conducting dutycycle is stated to shine.For example, control needs certain section of LED lighting lighted and controls its luminous brightness.For example, Content to be displayed is 20, conducting dutycycle 45.5%, controls the content to be displayed to exist according to 45.5% conducting dutycycle Display on display device.Conducting dutycycle is one by display ON time in the cycle and turn-on and turn-off time and it Than being the visual persistence effect using human eye by adjusting duty cycle adjustment display brightness, visual persistence effect, which refers to, works as human eye After the image seen disappears, human eye remains to continue to retain its image image of 0.1-0.5 seconds or so.When display turns on and closes When breaking quickly alternately, human eye can't see, the process that display lamp goes out, and change ON time therebetween when turn-on and turn-off are total Between shared ratio (change duty cycle), equivalent to the brightness for changing data pipe, duty cycle increase, then regard human eye vision effect Feel that effect increases equivalent to display brightness;Duty cycle reduces, then visual effect reduces equivalent to display brightness.Therefore, lead to The conducting dutycycles of different contents to be displayed is overregulated to adjust the display brightness of each content to be displayed so that in each display Big difference will not occur for the brightness of appearance, and then improve the display effect of content to be displayed.

The present embodiment adjusts difference and waits to show by pre-setting the mapping relations of different contents to be displayed and conducting dutycycle Show the conducting dutycycle of content to adjust the display brightness of each content to be displayed, effectively avoid display show it is different aobvious The difference of display brightness when showing content so that big difference will not occur for the brightness of each display content, and then improves and wait to show Show the display effect of content.

As shown in figure 9, the control module 30 includes:Determination unit 31 and control unit 32,

The determination unit 31, shows that required the sub of conducting shows for determining the content to be displayed on display device The conducting hop count of device;

Described control unit 32, for controlling required each the sub-display part turned on according to the conducting dutycycle Conducting.

Specifically, each display device includes multistage sub-display part, i.e. described with reference to figure 1 including multistage diode Sub-display part is by taking seven sections of diodes as an example.For example, reference table 2 and table 3, are incidence relation of the content to be displayed with turning on hop count Table.

Based on table 2 and table 3.When display content is 1, conducting hop count is 2, with reference to figure 1, when display content is 1, it is only necessary to Two sections of a sections, b sections diode current flows.The display brightness of display is determined by the conducting hop count of diode, in display difference Rong Shi, because the conducting hop count of diode is different, therefore, can cause the brightness that display is shown that difference occurs.Definite to be shown After the conducting dutycycle of content, determine that the content to be displayed shows leading for the sub-display part of required conducting on display device Logical hop count;The conducting of each sub-display part of required conducting is controlled according to the conducting dutycycle.

Optionally, the determining module 20, is additionally operable to determine the benchmark conducting hop count of display device;It is additionally operable to

Leading for the content to be displayed is determined according to the conducting hop count of the sub-display part and benchmark conducting hop count Logical duty cycle.

(display content for turning on hop count minimum is 100% time on the basis of turning on the display content of hop count minimum Conducting), determine the conducting dutycycles of other display contents.Duty cycle formula is when showing different numerals:

Wherein, N is the conducting hop count of diode when display shows the display content.It is double that air-conditioning can be calculated by formula Conducting dutycycle when 8 displays show different content.Reference table 4,

Specifically, determine the display cycle of display device;Institute is determined according to the display cycle and the conducting dutycycle State ON time and the turn-off time of display device;The logical of display device is controlled according to the ON time and the turn-off time It is disconnected.

For the frequency of display renewal display data exemplified by 20ms/ times, the display is receiving the number of display content According to rear, in the present embodiment, duty cycle is controlled by chronomere of 125 μ s.Wherein, the frequency and duty that display board updates the data All it is configurable option than chronomere, is not construed as limiting in the present invention.By taking display board shows 19 as an example, duty cycle 62.5% When, it is 12.5ms that can calculate the time turned in every 20ms, therefore, diode current flow in 20ms when display board shows 19 Time is 12.5ms, remaining 7.5ms shut-offs, so constantly circulation, as shown in Figure 4.By combining display conducting hop count and accounting for Sky is than adjusting the brightness that display shows different display contents so that brightness that different display contents are shown is more uniform, poor It is different small, improve the display effect of display content.

As shown in Figure 10, the control module 30 further includes:Judging unit 33,

The judging unit 33, is additionally operable to, in the arrival of next display cycle of display device, judge the display Whether the content shown by part changes;

Described control unit 32, is additionally operable to when the content shown by the display device does not change, according to described Conducting dutycycle controls the display process of display device next display cycle;

The determination unit 31, is additionally operable to when the content shown by the display device changes, and determines described change Display content and its corresponding new conducting dutycycle after change;

Described control unit 32, is additionally operable to the conducting according to the new conducting dutycycle control display device, with control Display brightness of the new display content on the display device.

In the present embodiment, when next display cycle arrives, judging unit 33 is judged shown by the display device Content whether change, i.e. judge whether the display needs to show new display content, in the display device institute When the content of display does not change, control unit 32 controls display device next display cycle according to the conducting dutycycle Display process;When the content shown by the display device changes, determination unit 31 determines aobvious after the change Show content and its corresponding new conducting dutycycle, control unit 32 is according to the new conducting dutycycle control display device Conducting, to control display brightness of the new display content on the display device.In the event of change, it is necessary to set again Determine diode conduction duty cycle, preferably to adjust the display brightness that display shows different content, it is different to be maintained at display During display content, under brightness change difference.

Specifically, with reference to figure 6, the flow diagram bag during the display control display content periodically display Include:1st, whether display content changes, if so, then implementation procedure 2, if it is not, then implementation procedure 4;2nd, calculated and led according to display content Logical duty cycle;3rd, according to the break-make of Duty ratio control diode;4th, the display refreshing time is reached, refreshes display content.

Further, the determining module 20, is additionally operable to determine that content to be displayed turns on needed for showing on display device Sub-display part conducting hop count;

The acquisition module 10, is additionally operable to obtain the display brightness difference between the sub-display part of the required conducting;

The determining module 20, is additionally operable to wait to show according to determining the display brightness difference and the content to be displayed Show the conducting dutycycle that content is shown by display device.

In the present embodiment, after the content to be displayed is updated on display device, determining module 20 determines to wait to show Show that content shows the conducting hop count of the sub-display part of required conducting on display device, that is, determine that the content to be displayed needs Several sections of diodes are shown.It whether there is display brightness difference, the display between the sub-display part of conducting required for judging The time that luminance difference can be installed based on diode obtains, i.e. can be obtained according to diode losses and usage time Display brightness difference between each diode, that is, obtain the display brightness difference of sub-display part.In the son of required conducting When there is damaged part in display device, there is display in acquisition module 10 between obtaining the sub-display part of the required conducting Luminance difference needs to compensate conducting dutycycle, it is necessary to redistribute conducting dutycycle, for example, display content be 20, It is 11 to turn on hop count, conducting dutycycle 45.5%, and there are during a conducting hop count breakage, conducting dutycycle heightens 5%, can Compensated with the display performance according to each diode or conducting dutycycle with diode display performance, determining module 20 Redefine conducting dutycycle.In an embodiment of the present invention, when there is damaged part, it is also possible that adjustment distribution Diode, the display of the display content of damaged portion, the conducting of the diode adjusted are completed by other diodes Duty cycle is identical with definite conducting dutycycle, either, according to the diode of adjustment with originally need diode distance come Calculate the conducting dutycycle of the adjustment.For example, distance 1mm corresponds to 5% conducting dutycycle, i.e. at interval of 5% conducting of 1mm increases Duty cycle.The present embodiment preferably adjusts the display brightness of display display content by being compensated to conducting dutycycle, into One step improves the effect that display content is shown.

Based on the control device of above-mentioned display brightness, the present invention also provides a kind of terminal, the terminal includes processor, institute State processor to be used for after idsplay order is received, obtain the corresponding content to be displayed of the idsplay order;Wait to show described in determining Show the conducting dutycycle that content is shown by display device;According to the conducting of conducting dutycycle control display device, with control Make display brightness of the content to be displayed on the display device.The terminal can be air conditioner, or lead to air conditioner Believe the electronic equipment of connection, the electronic equipment includes but not limited to mobile phone, pad etc..The terminal by taking air conditioner as an example, including Display and internal operation equipment, the internal operation equipment are connected with the display, are loaded in the air conditioner described aobvious Show the control device of brightness, operate in the display, the display based on the parameter that internal operational outfit uploads come Control the display brightness of display, i.e. adjusted by adjusting the conducting dutycycle of different contents to be displayed each to be shown interior The display brightness of appearance, effectively avoids the difference of display display brightness when showing different display contents so that each display Big difference will not occur for the brightness of content, and then improve the display effect of content to be displayed.

It these are only the preferred embodiment of the present invention, be not intended to limit the scope of the invention, it is every to utilize this hair The equivalent structure or equivalent flow shift that bright specification and accompanying drawing content are made, is directly or indirectly used in other relevant skills Art field, is included within the scope of the present invention.

Claims (6)

1. a kind of control method of display brightness, it is characterised in that including step:
After idsplay order is received, the corresponding content to be displayed of the idsplay order is obtained;
After the content to be displayed is updated on display device, determine that content to be displayed shows on display device needed for The conducting hop count of the sub-display part of conducting;
Obtain the display brightness difference between the sub-display part of the required conducting;
Determine what the content to be displayed was shown by display device according to the display brightness difference and the content to be displayed Conducting dutycycle;
According to the conducting of conducting dutycycle control display device, to control the content to be displayed on the display device Display brightness.
2. the control method of display brightness as claimed in claim 1, it is characterised in that described according to the conducting dutycycle control The step of conducting of display device processed, includes:
The conducting of each sub-display part of required conducting is controlled according to the conducting dutycycle.
3. the control method of display brightness as claimed in claim 1, it is characterised in that described according to the conducting dutycycle control The step of conducting of display device processed, includes:
When next display cycle of display device arrives, judge whether the content shown by the display device becomes Change;
It is next according to conducting dutycycle control display device when the content shown by the display device does not change The display process of a display cycle;
When the content shown by the display device changes, the display content after the change and its corresponding new is determined Conducting dutycycle, according to the conducting of the new conducting dutycycle control display device, to control the new display content Display brightness on the display device.
A kind of 4. control device of display brightness, it is characterised in that including:
Acquisition module, for after idsplay order is received, obtaining the corresponding content to be displayed of the idsplay order;
Determining module, for after the content to be displayed is updated on display device, determining that content to be displayed is being shown The conducting hop count of the sub-display part of conducting needed for being shown on device;
The acquisition module, is additionally operable to obtain the display brightness difference between the sub-display part of the required conducting;
The determining module, is additionally operable to determine the content to be displayed according to the display brightness difference and the content to be displayed The conducting dutycycle shown by display device;
Control module, for the conducting according to conducting dutycycle control display device, to control the content to be displayed to exist Display brightness on the display device.
5. the control device of display brightness as claimed in claim 4, it is characterised in that the control module includes:
Control unit, the conducting of each sub-display part for controlling required conducting according to the conducting dutycycle.
6. the control device of display brightness as claimed in claim 5, it is characterised in that the control module further includes:
Judging unit, in the arrival of next display cycle of display device, judging interior shown by the display device Whether appearance changes;
Described control unit, is additionally operable to when the content shown by the display device does not change, is accounted for according to the conducting The empty display process than controlling display device next display cycle;
The determining module, is additionally operable to when the content shown by the display device changes, after determining the change Display content and its corresponding new conducting dutycycle;
Described control unit, is additionally operable to the conducting according to the new conducting dutycycle control display device, described new to control Display brightness of the display content on the display device.
CN201510711705.9A 2015-10-26 2015-10-26 The control method and device of display brightness CN105206209B (en)

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