CN106782363A - Dimmer display - Google Patents
Dimmer display Download PDFInfo
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- CN106782363A CN106782363A CN201611142945.2A CN201611142945A CN106782363A CN 106782363 A CN106782363 A CN 106782363A CN 201611142945 A CN201611142945 A CN 201611142945A CN 106782363 A CN106782363 A CN 106782363A
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- module
- light
- display screen
- backlight
- viewing area
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Classifications
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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
-
- 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
- G09G3/3406—Control of illumination source
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G2320/00—Control of display operating conditions
- G09G2320/06—Adjustment of display parameters
- G09G2320/0626—Adjustment of display parameters for control of overall brightness
Abstract
The present invention relates to a kind of dimmer display, including：Control module, some backlight modules, display screen and some temperature detecting modules, display screen has multiple viewing areas, one backlight module of each viewing area correspondence, and each viewing area sets at least one temperature detecting module, control module includes signal detection module, light-adjusting module, PWM drive modules and controller, signal detection module is connected with each temperature detecting module, signal detection module is connected with controller, controller is connected with light-adjusting module, and light-adjusting module is connected by PWM drive modules with some backlight modules.According to the temperature that temperature detecting module is detected, generation light modulation parameter, and then backlight module work is driven according to light modulation state modulator PWM drive modules, it is achieved thereby that the adjustment of the brightness to display screen, so that brightness regulation is more convenient, further, since the luminous Temperature Matching with corresponding viewing area of backlight module, it is prevented effectively from display screen local temperature too high, effective reducing energy consumption.
Description
Technical field
The present invention relates to technical field of LED display, more particularly to dimmer display.
Background technology
With continuing to develop for LED LCDs, LED display has been able to accomplish split screen display available, and for can
The brightness of each split screen is controlled respectively, the brilliance control of split screen is that backlight is driven by backlight drive module, control mould
What block was realized by controlling the work of backlight drive module.Traditional backlight drive mode needs user manually to backlight mode
Chosen or be controlled manually, and the split screen negligible amounts of brightness allotment control can be carried out, caused user using not
Just, and with the increase of split screen quantity, user then rises therewith to the difficulty of brightness regulation, has been further exacerbated by user not
Just.
The content of the invention
Based on this, it is necessary to for the awkward defect of split screen backlight control of traditional LED LCDs, there is provided one
Plant dimmer display.
A kind of dimmer display, including：Control module, some backlight modules, display screen and some temperature detecting modules, institute
Stating display screen has multiple viewing areas, one backlight module of each viewing area correspondence, and each display
Region sets temperature detecting module described at least one, and the control module includes that signal detection module, light-adjusting module, PWM drive
Dynamic model block and controller, the signal detection module are connected with each temperature detecting module, the signal detection module and institute
State controller connection, the controller be connected with the light-adjusting module, if the light-adjusting module by the PWM drive modules and
The dry backlight module connection；
The signal detection module is used to detect and obtain the temperature signal of each temperature detecting module；
The controller is used to control the light-adjusting module many according to the generation of the temperature signal of each temperature detecting module
Individual light modulation parameter；
The light-adjusting module is used to generating light modulation parameter corresponding with each viewing area, and by the light modulation parameter hair
Deliver to PWM drive modules；
The PWM drive modules are used for according to each backlight module work of the light modulation driving parameter.
Further, the PWM drive modules are used to be accounted for backlight module output is default according to the light modulation parameter
The drive signal of empty ratio, the drive signal is used to drive each backlight module to work.
Further, the corresponding temperature of the light modulation parameter is inversely proportional with the default dutycycle of the drive signal.
Further, the temperature detecting module includes infrared detection module, fingerprint identification module.
Further, the temperature detecting module includes thermistor.
Further, the temperature detecting module includes analog-to-digital conversion module.
Above-mentioned dimmer display, according to the temperature that temperature detecting module is detected, generation light modulation parameter, and then joins according to light modulation
Numerical control PWM drive modules drive backlight module work, it is achieved thereby that the adjustment of the brightness to display screen so that brightness regulation
It is more convenient, further, since the Current Temperatures of the luminous and corresponding viewing area of backlight module are matched, and then it is prevented effectively from aobvious
Display screen local temperature is too high, and effectively reducing energy consumption.
Brief description of the drawings
Figure 1A is the module frame chart of the dimmer display of an embodiment；
Figure 1B is a direction structure schematic diagram of the dimmer display of an embodiment；
Fig. 2 is the module frame chart of the dimmer display of another embodiment；
Fig. 3 is the module frame chart of the dimmer display of another embodiment
Fig. 4 A are a directional profile structural representation of the dimmer display of an embodiment；
Fig. 4 B are the other direction part section structural representation of the dimmer display of an embodiment；
Fig. 4 C are the cross-sectional view of the reflector layer of an embodiment；
Fig. 4 D are the cross-sectional view of the reflector layer of another embodiment；
Fig. 5 is a directional profile structural representation of the dimmer display of another embodiment.
Specific embodiment
For the ease of understanding the present invention, the present invention is described more fully below with reference to relevant drawings.In accompanying drawing
Give presently preferred embodiments of the present invention.But, the present invention can be realized in many different forms, however it is not limited to this paper institutes
The embodiment of description.On the contrary, the purpose for providing these embodiments is to make the understanding to the disclosure more thorough
Comprehensively.
For example, a kind of dimmer display, including：It is control module, some backlight modules, some temperature detecting modules, some
Brightness detection module and display screen, the display screen have multiple viewing areas, and each viewing area is corresponded to described in one
Backlight module, each viewing area sets temperature detecting module and brightness detection module, the control described at least one
Module includes image processing module, signal detection module, light-adjusting module, PWM drive modules and controller, the signal detection mould
Block is connected with each temperature detecting module and with each brightness detection module, the signal detection module and the control
Device is connected, and described image processing unit is connected with the controller, and the controller is connected with the light-adjusting module, the light modulation
Module is connected by the PWM drive modules with some backlight modules；Described image processing module is used to obtain image, solves
Analysis described image, obtains color range of the described image on multiple viewing areas, by the corresponding color range in each viewing area
Send to controller；The signal detection module is used to detecting and obtain the temperature signal of each temperature detecting module and each
The luminance signal of brightness detection module；The controller is used to control the light-adjusting module according to each brightness detection module
The multiple light modulation parameters of luminance signal generation；The controller is additionally operable to control the light-adjusting module according to each temperature detection mould
The multiple light modulation parameters of temperature signal generation of block；The controller is additionally operable to control the light-adjusting module according to each viewing area
The corresponding multiple light modulation parameters of color range generation in domain；The light-adjusting module is used for dim corresponding with each viewing area of generation and joins
Number, and the light modulation parameter is sent to PWM drive modules；The PWM drive modules are used for according to the light modulation driving parameter
Each backlight module work.
As shown in FIG. 1A and 1B, a kind of dimmer display 10 of an embodiment, including：Control module 200, some backlights
Module 300 and display screen 100, the display screen 100 have multiple viewing areas 110, each correspondence of the viewing area 110 one
The individual backlight module 300, the control module 200 includes image processing module 210, light-adjusting module 220, PWM (Pulse
Width Modulation, pulse width modulation) drive module and controller 240, described image processing unit and the control
Device 240 is connected, and the controller 240 is connected with the light-adjusting module 220, and the light-adjusting module 220 drives mould by the PWM
Block 230 is connected with some backlight modules 300；Described image processing module 210 is used to obtain image, parses described image,
Obtain color range of the described image on multiple viewing areas 110, by the corresponding color range in each viewing area 110 send to
Controller 240；The controller 240 is used to control the light-adjusting module 220 according to the corresponding color range in each viewing area 110
The multiple light modulation parameters of generation；The light-adjusting module 220 is used to generate light modulation parameter corresponding with each viewing area 110, and
The light modulation parameter is sent to PWM drive modules 230；The PWM drive modules 230 are used for according to the light modulation driving parameter
Each backlight module 300 works.
Specifically, image is the image of the display of display screen 100, and the image is the two field picture shown on display screen 100, or
Person's multiple image, by each pixel cell luminescence display on display screen 100, pixel cell includes red pixel cell, green to the image
Color pixel unit and blue pixel cells, each red pixel cell, green pixel cell and blue pixel cells separately constitute figure
The different colours of picture, so as to the display image on display screen 100, in the present embodiment, the image processing module of control module 200
210 parse according to the image to exporting to display screen 100, obtain the corresponding color in each viewing area 110 on display screen 100
Rank, for example, the color range is color range value, the color range value is used to represent the color of the display of display screen 100, and in other words, the color range value is used
In the color for representing image, the color range value is bigger, then the color that it shows on display screen 100 is deeper, then it is in visual effect
On " brightness " it is higher, therefore, in order that display screen 100 display image brightness it is more balanced, in the present embodiment, light modulation
Module 220 exports the light modulation parameter according to the color range of each viewing area 110 of display screen 100 generation correspondence light modulation parameter
To PWM drive modules 230, PWM drive modules 230 work according to light modulation driving parameter backlight module 300 so that display screen 100
Backlight can be adjusted according to the brightness in each region of image so that the brightness adjustment of display screen 100 is more convenient, and figure
The display effect of picture more preferably, is prevented effectively from image local brightness excessive and influence user to watch.In the present embodiment, display screen 100
The color range of image played according to each frame of backlight of each viewing area 110 be adjusted, and then cause image overall brightness
More average, the display effect of image is more preferably.
For example, the backlight module 300 includes light emitting diode, specifically, the PWM drive modules 230 are used for luminous two
Pole pipe output pulse signal, the dutycycle of the pulse signal is bigger, then its pulse signal has significant level accounting bigger so that hair
Fluorescent lifetime of the optical diode within a pulse period is more long, so so that the luminosity of light emitting diode is bigger, instead
It, the dutycycle of pulse signal is smaller, then the luminosity of light emitting diode is smaller.For example, the light modulation parameter and pulse signal
Dutycycle into positive correlation, therefore, by the pulse signal of light modulation state modulator PWM drive modules 230, can control this light
The luminosity of diode, and then control the brightness of backlight module 300.
In one embodiment, the PWM drive modules 230 specifically for according to it is described light modulation parameter to the backlight mould
The drive signal of the default dutycycle of the output of block 300, the drive signal is used to drive each backlight module 300 to work, for example,
The light modulation corresponding color range of parameter is inversely proportional with the default dutycycle of the drive signal, and specifically, color range value is bigger, then as
The brightness of element, and because in the present embodiment, color range is inversely proportional with default dutycycle, it is, a viewing area 110 of image
Color range value is bigger, then preset dutycycle smaller, then the brightness of corresponding backlight module 300 is smaller, and then causes that the image exists
Brightness in viewing area 110 reduces, and the color range of a viewing area 110 of image value is smaller, then default dutycycle is bigger, that
The brightness of corresponding backlight module 300 is bigger, and then causes brightness increase of the image in viewing area 110, so, color
The backlight illumination of the big viewing area 110 of rank reduces, and color guards against the backlight illumination increase of small viewing area 110, and then causes each
The brightness of viewing area 110 is equalized so that the Luminance Distribution of the display screen 100 is more uniformly distributed, and then causes display screen 100
Display effect more preferably.
In order to accurately acquire the color range in each viewing area 110, for example, described image processing module 210 specifically for
Image is obtained, described image is parsed, the color of multiple pixel cells of the described image on each viewing area 110 is obtained
Rank, for example, described image processing module 210 is used to obtain the minimum value of the color range in viewing area 110, for example, described image
Processing module 210 is used to obtain the maximum of the color range in viewing area 110, for example, described image processing module 210 is used to obtain
The average value of the color range in viewing area 110 is taken, for example, described image processing module 210 is used to obtain in viewing area 110
The median of color range, specifically, because, comprising multiple pixel cells, the color range of each pixel cell may in viewing area 110
It is all different, therefore, in order to accurately acquire the color range in each viewing area 110, therefore, it is aobvious by obtaining in the present embodiment
Show the average value or median of color range in region 110, thus obtain closer to mean flow rate in the viewing area 110, so,
Average value or median according to the color range in viewing area 110 adjust the brightness of backlight module 300 so that the backlight module
300 more precisely for viewing area 110 provides light source, and then can cause that the display brightness of each viewing area 110 is more equal
One.
For example, described image processing module 210 parses described image specifically for obtaining image, obtain described image and exist
The color range of the multiple pixel cells on each viewing area 110, and judge that the average color range of multiple pixel cells is
No is the maximum color range for then obtaining multiple pixel cells more than predetermined threshold value, and maximum color range is sent to controller 240；The control
Device processed 240 is used to control the light-adjusting module 220 to be generated according to the maximum color range of the multiple pixel cells in the viewing area 110
Light modulation parameter；The light-adjusting module 220 is used to generating corresponding with each viewing area 110 light modulation parameter, and by the tune
Optical parameter is sent to PWM drive modules 230；The PWM drive modules 230 are used for according to light modulation each back of the body of driving parameter
Optical module 300 works.In the present embodiment, it is pre- that image processing module 210 judges whether the average color range in viewing area 110 is more than
If threshold value, the average color range such as in the viewing area 110 is more than predetermined threshold value, then show that the color in the viewing area 110 is whole
Body color is more bright-coloured, and brightness is higher, therefore, backlight module 300 is adjusted according to the maximum color range in the viewing area 110
It is whole so that backlight module 300 provides relatively low brightness, and then causes the overall brightness of viewing area 110 and other viewing areas
110 can balance each other, and then cause display effect more preferably.
In order that the brightness of display screen 100 is more uniformly distributed, display effect more preferably, for example, the number of the backlight module 300
It is 16 to measure, and and for example, the quantity of the backlight module 300 is 32, for example, there are the display screen 100 16 to show
Show region 110, for example, the display screen 100 has 32 viewing areas 110, specifically, due to backlight module 300 with it is aobvious
The correspondence of viewing area 110 of display screen 100, therefore, the backlight of each viewing area 110 can show according in the viewing area 110
The color range shown is adjusted, therefore so that the Luminance Distribution of the display screen 100 is more uniformly distributed, and then causes the aobvious of display screen 100
Show better.
As shown in Fig. 2 a kind of dimmer display 10 of an embodiment, including：Control module 200, some backlight modules
If the 300, display screen 100 and dry brightness detection module 400, the display screen 100 has multiple viewing areas 110, each described
One backlight module 300 of correspondence of viewing area 110, and each viewing area 110 sets brightness described at least one
Detection module 400, the control module 200 includes signal detection module 250, light-adjusting module 220, PWM drive modules 230 and control
Device processed 240, the signal detection module 250 is connected with each brightness detection module 400, the signal detection module 250 with
The controller 240 is connected, and the controller 240 is connected with the light-adjusting module 220, and the light-adjusting module 220 is by described
PWM drive modules 230 are connected with some backlight modules 300；The signal detection module 250 is used to detect and obtain each institute
State the luminance signal of brightness detection module 400；The controller 240 is used to control the light-adjusting module 220 according to each described bright
Spend the multiple light modulation parameters of luminance signal generation of detection module 400；The light-adjusting module 220 is used to generate and each viewing area
The corresponding light modulation parameter in domain 110, and the light modulation parameter is sent to PWM drive modules 230；The PWM drive modules 230 are used
Worked according to light modulation each backlight module 300 of driving parameter.
In the present embodiment, each brightness detection module 400 is used to detect the brightness of a viewing area 110, and generates brightness
Signal, for example, each brightness detection module 400 is used to detect the ambient brightness of a viewing area 110, and generates luminance signal,
For example, each brightness detection module 400 is used to detect the luminosity of a viewing area 110, and generate luminance signal, it should manage
Solution, the brightness detection module 400 is arranged on display screen 100, for example, the pixel cell is equal with brightness detection module 400
It is arranged on display screen 100, so, brightness detection module 400 can detect the luminosity or detection report of the display screen 100
The ambient brightness of the luminosity including display screen 100, specifically, the brightness detection module 400 is able to detect that viewing area
After 110 brightness, luminance signal is produced, signal detection module 250 sends to controller 240, controller 240 luminance signal
The corresponding light modulation parameter of the control generation of light-adjusting module 220 luminance signal, and then backlight module is driven by PWM drive modules 230
300 work so that the luminous brightness matching with the viewing area 110 of each backlight module 300, and then cause each viewing area 110
Brightness be more uniformly distributed so that display effect is more preferably.
For example, the brightness detection module 400 is used to detect the luminosity of a viewing area 110, in the viewing area 110
Brightness be more than predetermined luminance value when, generate luminance signal, for example, the brightness detection module 400 include photistor, example
Such as, the brightness detection module 400 also includes analog-to-digital conversion module, photosensitive crystal described in each analog-to-digital conversion module and
Pipe is connected, and each analog-to-digital conversion module is connected with the signal detection module 250, specifically, photosensitive in the present embodiment
Transistor is used to be turned on when brightness value is more than predetermined luminance value, after photistor conducting, is exported to analog-to-digital conversion module
Level signal, analog-to-digital conversion module is used for after level signal is received, and the level signal is converted into data signal, and this is counted
Word signal is sent to signal detection module 250, and in the present embodiment, the data signal is luminance signal.In the present embodiment, due to
When brightness is more than predetermined luminance value, the photistor is just turned on, then it represents that the brightness of the viewing area 110 is much, controller
240 control backlight modules 300 reduce luminosity, and then cause that the brightness of the viewing area 110 is unlikely to too high, Jin Erneng
Enough avoid the luminosity of viewing area 110 too high, effectively reduce the power consumption of dimmer display 10.
For example, the brightness detection module 400 includes photo resistance, for example, the brightness detection module 400 also includes electricity
Pressure detection module, each voltage detection module is connected with a photo resistance, and each voltage detection module with it is described
Signal detection module 250 is connected, and specifically, in the present embodiment, the photo resistance is used to detect brightness that the photo resistance to be in difference
The resistance with different resistances, the i.e. photo resistance changes with the change of brightness under brightness, it should be understood that photosensitive
The voltage at resistance two ends is directly proportional to the resistance of photo resistance, so, is connected to the voltage detection module at the photo resistance two ends
By the resistance for detecting the voltage of the photo resistance so as to obtain the photo resistance, and then obtain the electricity that photo resistance is detected
Resistance, for example, voltage detection module is analog-to-digital conversion module, the photovoltaic conversion that the voltage detection module will be detected is corresponding number
Word signal is sent to signal detection module 250, so that the brightness that controller 240 can be detected according to photo resistance is controlled
System is exported to the light modulation parameter of PWM drive modules 230, and then controls the luminous of backlight module 300.
For example, the voltage detection module is used for when the voltage at photo resistance two ends is less than predeterminated voltage, generation brightness letter
Number, the luminance signal is sent to signal detection module 250, specifically, when the voltage at the photo resistance two ends is smaller, then should
The ambient brightness that photo resistance is detected is smaller, therefore, voltage detection module generation luminance signal, so that trigger controller 240
Control PWM drive modules 230 drive backlight module 300 to improve luminosity so that the display brightness in the viewing area 110 is carried
Height, and then cause the display effect of the viewing area 110 more preferably.
In one embodiment, the PWM drive modules 230 are used for according to the light modulation parameter to the backlight module
The drive signal of the default dutycycle of 300 outputs, the drive signal is used to drive each backlight module 300 to work, for example, institute
The corresponding luminance signal of light modulation parameter is stated to be inversely proportional with the default dutycycle of the drive signal, it is worth mentioning at this point that, the brightness
Signal is the data signal of brightness value, in the present embodiment, exports corresponding to the light modulation parameter of the PWM drive modules 230
The default dutycycle of the drive signal that brightness value is exported with the PWM drive modules 230 is inversely proportional, it is, brightness detection mould
The brightness of the detection of block 400 is bigger, then the default dutycycle of the drive signal of the output of PWM drive modules 230 is smaller, so, correspondence
Backlight module 300 brightness it is smaller, and brightness detection module 400 detection brightness it is smaller, then PWM drive modules 230 are exported
Drive signal default dutycycle it is bigger, the brightness of corresponding backlight module 300 is bigger.So that the big viewing area of brightness
The backlight illumination in domain 110 is small, and the backlight illumination of the small viewing area 110 of brightness is small, enables to the aobvious of each viewing area 110
Show that brightness is more average, it is to avoid the display brightness portion of each viewing area 110 is balanced, and can avoid due to showing caused by environmental factor
The dark situation of the local luminance of display screen 100 so that the display effect of display screen 100 is more preferably.
As shown in figure 3, a kind of dimmer display 10 of an embodiment, including：Including control module 200, some backlight moulds
Block 300, display screen 100 and some temperature detecting modules 500, the display screen 100 have multiple viewing areas 110, Mei Yisuo
One backlight module 300 of correspondence of viewing area 110 is stated, and each viewing area 110 sets temperature described at least one
Degree detection module 500, the control module 200 includes signal detection module 250, light-adjusting module 220, the and of PWM drive modules 230
Controller 240, the signal detection module 250 is connected with each temperature detecting module 500, the signal detection module 250
It is connected with the controller 240, the controller 240 is connected with the light-adjusting module 220, the light-adjusting module 220 passes through institute
PWM drive modules 230 are stated to be connected with some backlight modules 300；The signal detection module 250 is used to detecting and obtaining each
The temperature signal of the temperature detecting module 500；The controller 240 is used to control the light-adjusting module 220 according to each described
The multiple light modulation parameters of temperature signal generation of temperature detecting module 500；The light-adjusting module 220 is used to generate and each display
The corresponding light modulation parameter in region 110, and the light modulation parameter is sent to PWM drive modules 230；The PWM drive modules 230
For being worked according to light modulation each backlight module 300 of driving parameter.
In the present embodiment, each temperature detecting module 500 detects the temperature of corresponding viewing area 110, it should be appreciated that
It is that, when display screen 100 and backlight module 300 work long hours, will cause in temperature rising or the local temperature of display screen 100
Rise, in order to avoid the local temperature of display screen 100 is too high, and for reducing energy consumption, in the present embodiment, according to temperature detecting module
The temperature of 500 detections, generation light modulation parameter, and then backlight module 300 is driven according to light modulation state modulator PWM drive modules 230
Work so that the Current Temperatures of the luminous and corresponding viewing area 110 of backlight module 300 are matched, and then are prevented effectively from display
Shield 100 local temperatures too high, and effectively reducing energy consumption.
For example, the controller 240 is used to, when the temperature of viewing area 110 is more than preset temperature, control the light modulation
The multiple light modulation parameters of 220 generations of module, in the present embodiment, when the temperature of viewing area 110 is higher, then control light-adjusting module
220 generation light modulation parameters, and then the reduction luminous power of backlight module 300 is controlled, to reduce the temperature of the viewing area 110, make
The power consumption for obtaining the display screen 100 is lower, and effectively improves the service life of display screen 100.
In one embodiment, the PWM drive modules 230 are used for according to the light modulation parameter to the backlight module
The drive signal of the default dutycycle of 300 outputs, the drive signal is used to drive each backlight module 300 to work, for example, institute
The corresponding temperature of light modulation parameter is stated to be inversely proportional with the default dutycycle of the drive signal, specifically, in this example it is shown that
The temperature in region 110 is higher, then the default dutycycle of drive signal is smaller, and so, the luminosity of backlight module 300 is lower,
Backlight temperature drop can be effectively caused, and the temperature of viewing area 110 is lower, then the default dutycycle of drive signal is bigger,
The luminosity of backlight module 300 is higher so that the brightness of the viewing area 110 increases so that the viewing area 110 is more conducive to
Viewing, and cause that the temperature of each viewing area 110 is more balanced, effectively improve the service life of display screen 100.
In order to realize to the temperature detection of viewing area 110 for example, the temperature detecting module 500 includes infrared detection mould
Block, the infrared detection module, fingerprint identification module can efficiently and accurately obtain the temperature of corresponding viewing area 110, infrared detection module, fingerprint identification module inspection
After measuring temperature, signal detection module 250 obtains the temperature signal.For example, the temperature detecting module 500 includes temperature-sensitive electricity
Resistance, for example, the temperature detecting module 500 includes analog-to-digital conversion module, analog-to-digital conversion module is connected with controller 240, the heat
The resistance value of quick resistance changes according to the change of current environment temperature, and analog-to-digital conversion module is by the voltage at thermistor two ends
Data signal is generated after detection and sends the number obtained according to signal detection module 250 to signal detection module 250, controller 240
Word signal control light-adjusting module 220 works, and then causes that the temperature of each viewing area 110 of display screen 100 is more balanced, favorably
In the power consumption for reducing display screen 100.
As shown in Figure 1B, Fig. 4 A and Fig. 4 B, a kind of dimmer display 10 of an embodiment, including：Display screen 100 and housing
600, the housing 600 is arranged at the outside of the display screen 100, and the housing 600 is rectangle, and the housing 600 includes four
The frame 610 of interconnection, the frame 610 is provided with reflective groove towards the medial recess of the one side of the display screen 100
620, reflector layer 630 is provided with the reflective groove 620, the frame 610 divides towards the two ends of the one side of the display screen 100
Light-absorption layer 640 is not provided with.
Specifically, in the present embodiment, the display device 10 also includes backlight module 300, by the back of the body of backlight module 300
Light action so that the display screen 100 being capable of luminescence display, it should be understood that the housing 600 is used to fix the display screen 100,
Therefore, the housing 600 needs to be abutted with display screen 100, so, the edge of display screen 100 will be caused to be blocked, so so that
Light of the display screen 100 near the part at edge is blocked by housing 600, and is absorbed by housing 600, causes display screen 100
Display effect near the part at edge is not good, therefore, in the present embodiment, one side of the frame 610 towards the display screen 100
Medial recess is provided with reflective groove 620, reflective groove 620 and is provided with reflector layer 630, and the reflector layer 630 in reflective groove 620 can
The light of the backlight module 300 of display screen 100 is reflexed into display screen 100, it is to avoid because display screen frontside edge is by partial occlusion
The illumination effect for causing is not good.
Further, since the two ends of frame 610 are provided with light-absorption layer 640, the light heap in the junction of frame 610 can be avoided
Product, it should be understood that because display screen 100 is generally rectangular cross-section, therefore, display screen 100 rectangle it is diagonal on, easily make
Piled up into light, for example, the junction of each frame 610 is provided with light-absorption layer 640, for example, the light-absorption layer 640 includes black film layer, example
Such as, the light-absorption layer 640 is black frosted layer, and specifically, the light-absorption layer 640 sets the material of black, and its surface is provided with mill
Sand particle, in such manner, it is possible to be prevented effectively from light line reflection, is conducive to the absorption of light, therefore, it is possible to be prevented effectively from light in rectangle
Diagonal upper aggregation so that the display effect of display screen 100 is more preferably.
For example, the mesh number of the frosted particle is 110 mesh to 140 mesh, for example, the mesh number of the frosted particle is 125 mesh,
Specifically, the mesh number of the frosted particle is bigger, then the particle width of frosted particle is smaller, and then to the concentration reflection effect of light
Fruit is poorer, then the assimilation effect to light gets over folder, but the mesh number of frosted particle is unsuitable excessive, and frosted particle is excessive, will cause mill
Layer of sand surface is smooth-out, is unfavorable for the absorption of light.Therefore, in the present embodiment, the mesh number of frosted particle can make for 125 mesh
Obtain the diffusing reflection rate of light-absorption layer 640 higher, and then cause that extinction is better.
In order to the light at the edge to the display screen 100 is launched, for example, the reflective groove 620 has square-section,
In order that obtain light launching effect more preferably, for example, the reflective groove 620 has arc section, for example, the reflective groove 620 has
There is semi-circular cross-section, specifically, the arc section and semi-circular cross-section are conducive to light to concentrate so that the light can be focused on
Reflection, and then cause the reflecting effect of light more preferably.
In order that obtaining reflecting effect more preferably, in one embodiment, the reflector layer 630 includes reflective membrane, for example, as schemed
Shown in 4C, the reflective membrane includes the transparent resin bed 631, metal level 632 and the gum layer 633 that are sequentially connected, for example, described
Gum layer 633 is connected with the frame 610, for example, the gum layer 633 is arranged at the cell wall of the reflective groove 620 of frame 610
On in 651, for example, the metal level 632 is silver foil layer, for example, the metal level 632 is platinum foil layer, silver foil layer or platinum foil layer have
There is good reflecting effect, binding resin layer 631 can reduce the absorption of light, improve light emissivity so as to display screen
More preferably, for example, as shown in Figure 4 D, the reflector layer 630 also includes glassy layer 634 to the reflecting effect of 100 light, for example, institute
The one side that glassy layer 634 is arranged at the dorsad metal level 632 of the resin bed 631 is stated, for example, the glassy layer 634 is transparent
Glassy layer 634, the glassy layer 634 can carry out this book to the light for being incident to resin bed 631, and reduction is incident to resin bed 631
Light slope, and then enable that the light is fully reflected by metal level 632, effectively reduce the diffusing reflection of light, from
And improving the reflectivity of light so that light can be concentrated and reflex to display screen 100.
For example, the edge of the display screen 100 is abutted with the frame 610, for example, the depth of the reflection groove is 3mm
~4.5mm, for example, the depth of the reflection groove is 3.5mm, for example, the thickness of the thickness of the glassy layer and the resin bed 631
The ratio between degree is 1：(1.5~2.5), for example, the ratio between thickness of the thickness of the glassy layer and the resin bed 631 is 1：1.8, should
It should be appreciated that, due to reflection groove section be arc or semicircle, therefore, be incident to resin bed 631 light will concentrate
Reflected to the axis of incident groove, and if the thickness of glassy layer is excessive, then cause to be incident to the light angle of resin bed 631 compared with
Small, so, the focus point of the light after reflection too close to reflection groove, and if the thickness of glassy layer is too small, then will be caused
The light angle for being incident upon resin bed 631 is larger, so, the focus point of the light after reflection will too close to the middle part of display screen 100,
Display screen frontside edge cannot be by the square reflexed to, therefore, in the present embodiment, the depth of reflection groove is 3.5mm, and the glass
The ratio between the thickness of layer and the thickness of the resin bed 631 are 1：1.8, enable to the light after reflection to focus on display screen
100 edge, and then cause that the luminescence display of display screen frontside edge is better.
In order to preferably be the luminous offer reflection of display screen 100, in one embodiment, the thickness of the reflector layer 630
It is 0.6mm~1mm to spend, for example, the thickness of the reflector layer 630 is 0.8mm.It is noted that the thickness of reflector layer 630 is not
Preferably excessive, the excessive reflector layer 630 of thickness will cause the depth of reflection groove to reduce, and the thickness of reflector layer 630 is also unsuitable too small,
The reflecting effect of the too small reflector layer 630 of thickness is not good, therefore, in the present embodiment, the thickness of reflector layer 630 is 0.8mm, a side
Face, can avoid causing the depth of reflection groove excessive influence, on the other hand, then cause that reflecting effect is preferable.
As shown in figure 5, a kind of dimmer display 10 of an embodiment, including：Display screen 100 and housing 600, the housing
600 is rectangle, and the housing 600 includes four frames 610 of interconnection, and there are storage tank 650, institute in the inner side of the frame 610
Display screen 100 is stated to be placed in the storage tank 650, the cell wall 651 of the storage tank 650 including both sides and with described in both sides
The bottom land 652 of the connection of cell wall 651, four sides of the display screen 100 abut with the bottom land 652, cell wall 651 described in both sides
Projection is provided with fixed part 660, and two fixed parts 660 are connected on two relative faces of the display screen 100 respectively,
The fixed part 660 is recessed towards the direction of the bottom land 652 and sets.
In the present embodiment, as shown in figure 5, the storage tank 650 offers reflective groove 620, for example, the court of the reflective groove 620
Set to the display screen 100, for example, the middle part of bottom land 652 of the storage tank 650 offers reflective groove 620, for example, described
Reflective groove 620 is set in the same direction with the storage tank 650, for example, the width of the reflective groove 620 is less than the storage tank 650
Width.
Specifically, the fixed part 660 is used to abut display screen 100, and then fixed display screen 100, and display screen 100 is carried out
Support, and the fixed part 660 is additionally operable to the light of blocking reflected groove, it is to avoid the light of reflection groove is from display screen 100 and housing 600
Between pass through, it is to avoid due to the reflection of reflection groove, cause display screen 100 near the brightness exception of the position at edge.Specifically, should
The light of reflection groove reflection will reflex to the edge of display screen 100, without stop such as between housing 600 and display screen 100, that
, the light of reflection will be passed through between housing 600 and display screen 100, and then influence other regions of display screen 100, especially
Near the display effect of the position of fringe region, therefore, in the present embodiment, the fixed part 660 being capable of effective blocking reflected groove
Reflection light so that the display effect of display screen 100 is more preferably.
In order that display screen 100 effective area it is bigger, display effect is more preferably, described for example, referring again to Fig. 5
Fixed part 660 have arc section, for example, the fixed part 660 have U-shaped section, specifically, the fixed part 660 by two ends extremely
Middle part is gradually recessed near the direction of bottom land 652, in such manner, it is possible to being prevented effectively from fixed part 660 causes resistance to display screen 100
Gear, it is to avoid reduce the effective area of display screen 100, and then cause the display effect of display screen 100 more preferably.
In order to further avoid that the effective area of display screen 100 is impacted, in one embodiment, the fixed part
660 have trapezoid cross section away from one end of the cell wall 651, for example, width of the fixed part 660 away from one end of the cell wall 651
Degree is gradually reduced by near the cell wall 651 to the direction away from the cell wall 651, so, due to fixed part 660 be connected to it is aobvious
The width of one end of display screen 100 is smaller, therefore, fixed part 660 is smaller with the area of the contact of display screen 100, has been conducive to entering
One step avoids impacting the effective area of display screen 100, and then causes the display effect of display screen 100 more preferably.
In order that the connection obtained between fixed part 660 and display screen 100 is more firm, for example, the material of the fixed part 660
Matter is rubber, it should be understood that because quality of rubber materials is soft, the not surface of easy damaged display screen 100, and rubber has good bullet
Property, can closely fit in the surface of display screen 100 so that the frictional force between fixed part 660 and display screen 100 is larger, enter
And enable that fixed part 660 firmly fixes display screen 100.And for example, the material of the fixed part 660 is epoxy resin, ring
Oxygen tree fat has favorable elasticity and more soft quality, can firmly fix display screen 100.
It should be noted that in said system embodiment, included modules are to be drawn according to function logic
Point, but above-mentioned division is not limited to, as long as corresponding function can be realized；In addition, each functional unit is specific
Title is also only to facilitate mutually distinguish, the protection domain being not intended to limit the invention.
In addition, one of ordinary skill in the art will appreciate that realizing all or part of step in the various embodiments described above method
Program be can be by instruct the hardware of correlation to complete, corresponding program can be stored in read/write memory medium.
Each technical characteristic of embodiment described above can be combined arbitrarily, to make description succinct, not to above-mentioned reality
Apply all possible combination of each technical characteristic in example to be all described, as long as however, the combination of these technical characteristics is not moved
Dynamic contradiction, is all considered to be the scope of this specification record.
Embodiment described above only expresses several embodiments of the invention, and its description is more specific and detailed, but simultaneously
Can not therefore be construed as limiting the scope of the patent.It should be pointed out that coming for one of ordinary skill in the art
Say, without departing from the inventive concept of the premise, various modifications and improvements can be made, these belong to protection of the invention
Scope.Therefore, the protection domain of patent of the present invention should be determined by the appended claims.
Claims (6)
1. a kind of dimmer display, it is characterised in that including the inspection of control module, some backlight modules, display screen and some temperature
Module is surveyed, the display screen has multiple viewing areas, and each viewing area corresponds to a backlight module, and each
The viewing area sets temperature detecting module described at least one, and the control module includes signal detection module, light modulation mould
Block, PWM drive modules and controller, the signal detection module are connected with each temperature detecting module, the signal detection
Module is connected with the controller, and the controller is connected with the light-adjusting module, and the light-adjusting module is driven by the PWM
Module is connected with some backlight modules；
The signal detection module is used to detect and obtain the temperature signal of each temperature detecting module；
The controller is used to control the light-adjusting module according to the multiple tune of the temperature signal of each temperature detecting module generation
Optical parameter；
The light-adjusting module is used to generating light modulation parameter corresponding with each viewing area, and by the light modulation parameter send to
PWM drive modules；
The PWM drive modules are used for according to each backlight module work of the light modulation driving parameter.
2. dimmer display according to claim 1, it is characterised in that the PWM drive modules are used for according to the tune
Optical parameter presets the drive signal of dutycycle to backlight module output, and the drive signal is used to drive each backlight mould
Block works.
3. dimmer display according to claim 2, it is characterised in that the corresponding temperature of the light modulation parameter and the drive
The default dutycycle of dynamic signal is inversely proportional.
4. dimmer display according to claim 1, it is characterised in that the temperature detecting module includes infrared detection mould
Block.
5. dimmer display according to claim 1, it is characterised in that the temperature detecting module includes thermistor.
6. dimmer display according to claim 5, it is characterised in that the temperature detecting module includes analog-to-digital conversion mould
Block.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611142945.2A CN106782363B (en) | 2016-12-07 | 2016-12-07 | Dimmer display |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201611142945.2A CN106782363B (en) | 2016-12-07 | 2016-12-07 | Dimmer display |
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| CN106782363B CN106782363B (en) | 2019-03-05 |
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| CN107240376A (en) * | 2017-07-07 | 2017-10-10 | 青岛海信电器股份有限公司 | Method for controlling backlight thereof, device and liquid crystal display |
| CN111640407A (en) * | 2020-05-12 | 2020-09-08 | 广州视源电子科技股份有限公司 | Screen brightness adjusting method and device, storage medium and electronic equipment |
| CN112331151A (en) * | 2020-11-09 | 2021-02-05 | Tcl华星光电技术有限公司 | Light-emitting substrate and display device |
| CN113851088A (en) * | 2021-08-18 | 2021-12-28 | 惠州市德赛西威汽车电子股份有限公司 | Automobile instrument self-adaptive backlight control system and method |
| CN114783359A (en) * | 2022-04-18 | 2022-07-22 | 深圳市华星光电半导体显示技术有限公司 | Method, device, server and storage medium for improving uneven display of panel picture |
| CN116486756A (en) * | 2023-04-19 | 2023-07-25 | 惠科股份有限公司 | Display device and driving method thereof |
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| CN106782363B (en) | 2019-03-05 |
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