CN102831863B - Backlight module device, control method and television - Google Patents
Backlight module device, control method and television Download PDFInfo
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- CN102831863B CN102831863B CN201210315647.4A CN201210315647A CN102831863B CN 102831863 B CN102831863 B CN 102831863B CN 201210315647 A CN201210315647 A CN 201210315647A CN 102831863 B CN102831863 B CN 102831863B
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Abstract
The invention provides a backlight module device, a control method and a television. A sectional backlight module is adopted to control the corresponding display region, in coordination with liquid crystal molecules of liquid crystal lens of shutter 3D glasses, the backlight is turn on within a stable state period, and different power supply currents are set for different region backlight modules, the high backlight current is set in a place where the high backlight luminance is required, the high backlight luminance can make up the display luminance when the liquid crystal molecules are not in the stable state region. Due to the set of different backlight power supply currents, the technical problem that the 3D liquid crystal screen has uneven display luminance is solved, and the 3D display effect is improved.
Description
Technical field
The present invention relates to technical field of audio/video, particularly a kind of backlight module device and control method, TV.
Background technology
Along with the development of 3D display technique, the technical scheme that can realize 3D display has a lot, different according to display technique, mainly contain spectacle 3D display and bore hole formula 3D display two large classes, wherein, in spectacle 3D display technique, mainly contain: shutter 3D display technique, polarized light 3D display technique.
Wherein, the evaluation index of shutter 3D display technique at least comprises resistance to crosstalk performance.In prior art, for solving the liquid crystal display that cross-interference issue can adopt a kind of region backlight segment to control, in this liquid crystal display, when liquid crystal is addressed to a sectional area, opens the backlight that this sectional area is corresponding, and the backlight of other sectional areas is closed.
Visible, in this liquid crystal display, the viewing area that any one section of backlight is corresponding, at left (right side) eye pattern as addressing backlight open, can backlight open again when arriving to right (left side) eye pattern as addressing, there is backlight in a period of time is locate closed condition, and when backlight is closed, LCD screen shows without image, what which reduces between a left side (right side) eye pattern picture with right (left side) eye pattern picture is overlapping, and then can alleviate right and left eyes picture crosstalk problem.
In prior art, the liquid crystal display that described region backlight segment controls, when Time-sharing control region backlight, is the backlight opening respective regions successively under even time delay interval, and backlight control circuit for the electric current that regional backlight provides be equal.
In the prior art, be the effect making the brightness of each backlight area reach best, when the liquid crystal molecule of corresponding backlight area is opened and reached steady state (SS), the backlight in this region need be opened, backlight is the most effectively utilized.But also need to coordinate shutter type 3 D spectacles to use, for reducing cross-interference issue further, the right and left eyes eyeglass switch of described 3D glasses also needs order to open, that is: after closing left (right side) lens, open the right side (left side) lens again, but, the liquid crystal lens of 3D glasses is opened into eyeglass liquid crystal molecule steady state (SS) or closes to eyeglass liquid crystal molecule buttoned-up status, need the regular hour, such as: the every two field picture refresh time of 3D liquid crystal display of 120Hz is 8.3ms, eyeglass liquid crystal molecule stabilization time of 3D glasses is 6.5ms, therefore, during the unlatching of part viewing area, the eyeglass liquid crystal molecule of 3D glasses is not in steady state (SS), that is: be in 3D lens liquid crystal molecule open be tending towards rise or close be tending towards decline change procedure in, if open the backlight of corresponding viewing area in this change procedure, 3D glasses rate of change will be asynchronous to stable rate of change with the liquid crystal molecule opening liquid crystal display, to user, will feel there is flickering.
In prior art, in order to avoid above-mentioned flickering, take to reach in the steady state (SS) time period at the liquid crystal molecule of 3D eyeglass, that is: be included in the 6.5ms time in every two field picture refresh time 8.3ms, open the backlight module of each viewing area.
Present inventor, in the process realizing technical scheme in the embodiment of the present application, at least finds to there is following technical matters in prior art:
Due in the prior art, when being compressed in 6.5ms time, the liquid crystal molecule of the liquid crystal display of part viewing area does not reach steady state (SS) completely, and liquid crystal molecule at steady state time, the transmitance of backlight is the highest, and corresponding brightness of display screen is just maximum, the back facet current that adding provides is all identical, so, liquid crystal molecule is not reached completely to the viewing area of steady state (SS), exist through backlight illumination can the low and technical matters causing the brightness of part viewing area lower.
Owing to there is the lower technical matters of part viewing area brightness, so cause whole 3D brightness of display screen in prior art to there is uneven technical matters further.
Summary of the invention
The application provides a kind of backlight module device and control method, TV, in order to solve exist in prior art through the low and technical matters causing the brightness of part viewing area lower of backlight.
For realizing upper described object, the application provides a kind of backlight module method for controlling backlight thereof on the one hand, being applied in one includes in the electronic equipment of the display panel of N number of viewing area, N be more than or equal to 2 integer, comprise: arrange corresponding with i-th viewing area in described N number of viewing area for i-th region backlight module in the backlight module of N number of region, described i-th region backlight module provides light source for i-th viewing area, and i is the arbitrary positive integer between N and 0; Steady state (SS) is reached at the liquid crystal molecule mating 3D glasses liquid crystal lens with described electronic equipment, and display image is when being addressed to i-th viewing area, control described i-th region backlight module by i-th switch-linear hybrid subelement and be in open state, wherein, i-th switch-linear hybrid subelement is the switch-linear hybrid subelement being coupled to i-th region backlight module of N number of region backlight module in N number of switch-linear hybrid subelement of comprising of switch-linear hybrid unit; The i-th road supply current that subelement controls i-th region backlight module is controlled by i-th, to make the display brightness of described N number of viewing area identical, wherein, the supply current having at least two region backlight modules corresponding in the backlight module of described N number of region is not identical, and described i-th to control subelement be the control subelement being coupled to i-th region backlight module of N number of region backlight module in N number of control subelement of comprising of region backlight control unit.
On the other hand, the application also provides a kind of backlight module device, being applied in one includes in the electronic equipment of the display panel of N number of viewing area, N be more than or equal to 2 integer, comprising: backlight module, comprise N number of region backlight module, wherein, i-th region backlight module in the backlight module of described N number of region is corresponding with i-th viewing area in described N number of viewing area to be arranged, and for providing light source for described i-th viewing area, i is the arbitrary positive integer between N and 0; Switch-linear hybrid unit, comprise N number of switch-linear hybrid subelement, wherein, i-th switch-linear hybrid subelement is coupled to i-th region backlight module of N number of region backlight module, for reaching steady state (SS) at the liquid crystal molecule mating 3D glasses liquid crystal lens with described electronic equipment, and display image is when being addressed to i-th viewing area, controls described i-th region backlight module and is in open state; And region backlight control unit, comprise N number of control subelement, wherein, i-th controls i-th region backlight module that subelement is coupled to N number of region backlight module, for controlling the i-th road supply current of i-th region backlight module, to make the display brightness of described N number of viewing area identical, wherein, the supply current having at least two region backlight modules corresponding in the backlight module of described N number of region is not identical.
Again on the one hand, the application also provides a kind of TV, comprising:
Casing; Display panel, arrange on the housing, described display panel includes N number of viewing area, N be more than or equal to 2 integer; Backlight module device, is connected with described display panel; Electric supply installation, is connected with described display panel and described backlight module device; Wherein, described backlight module device comprises: backlight module, comprise N number of region backlight module, wherein, i-th region backlight module in the backlight module of described N number of region is corresponding with i-th viewing area in described N number of viewing area to be arranged, for providing light source for described i-th viewing area, i is the arbitrary positive integer between N and 0; Switch-linear hybrid unit, comprise N number of switch-linear hybrid subelement, wherein, i-th switch-linear hybrid subelement is coupled to i-th region backlight module of N number of region backlight module, for reaching steady state (SS) at the liquid crystal molecule mating 3D glasses liquid crystal lens with described TV, and display image is when being addressed to i-th viewing area, controls described i-th region backlight module and is in open state; And region backlight control unit, comprise N number of control subelement, wherein, i-th controls i-th region backlight module that subelement is coupled to N number of region backlight module, for controlling the i-th road supply current of i-th region backlight module, to make the display brightness of described N number of viewing area identical, wherein, the supply current having at least two region backlight modules corresponding in the backlight module of described N number of region is not identical.
By the technical scheme in the one or more embodiments in the embodiment of the present application, at least following technique effect can be obtained:
First, the application provides a kind of backlight module device, control method and TV, have employed sectional area backlight module and control corresponding viewing area, coordinate the liquid crystal lens liquid crystal molecule of shutter type 3 D spectacles within the steady state (SS) time period, open backlight, and different supply current is set for different region backlight modules, arrange high backlight power supply electric current at the high backlight illumination of needs, high backlight illumination can make up liquid crystal molecule not at the display brightness in steady state (SS) region.Therefore, different backlight power supply electric current is set, solves the technical matters that the display brightness of 3D liquid crystal display is uneven, improve the brightness uniformity index of 3D display screen, improve 3D display effect.
Second, in the technical scheme of the application, when solving 3D cross-interference issue for cooperation, sequential opened by the eyeglass that coupling shutter type 3 D spectacles provides, that is: left (right side) lens is opening right (left side) eyeglass after closing completely, and reach in stabilization time at the liquid crystal molecule of right (left side) eyeglass, open the backlight module of liquid crystal display viewing area again, solve 3D eyeglass liquid crystal molecule and be tending towards propradation or closedown is in the process of decline state in unlatching, unlatching backlight, bring 3D eyeglass liquid crystal molecule rate of change and open the asynchronous problem bringing human eye flickering of backlight rate of change.
Accompanying drawing explanation
Accompanying drawing is below only of the present inventionly schematically illustrate and explain, not delimit the scope of the invention.For those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.In the accompanying drawings:
Fig. 1 is 6 sections of region backlight control sequential charts in the embodiment of the present application;
Fig. 2 is the frame diagram of a kind of TV in the embodiment of the present application.
Embodiment
Be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
Technical scheme in embodiments of the invention is for providing a kind of backlight module device, control method and TV, and general thought is as follows:.
The application's object, solve in prior art exist through backlight can the low and technical matters causing the brightness of part viewing area lower.
Sectional area backlight module is adopted to control corresponding viewing area, coordinate the liquid crystal lens liquid crystal molecule of shutter type 3 D spectacles within the steady state (SS) time period, open backlight, and different supply current is set for different region backlight modules, arrange high backlight power supply electric current at the high backlight illumination of needs, high backlight illumination can make up liquid crystal molecule not at the display brightness in steady state (SS) region.Therefore, different backlight power supply electric current is set, the technical matters that the display brightness of 3D liquid crystal display is uneven can be solved, improve the brightness uniformity index of 3D display screen, improve 3D display effect.
Simultaneously, in technical scheme, 3D cross-interference issue is being solved for coordinating, sequential opened by the eyeglass that coupling shutter type 3 D spectacles provides, that is: left (right side) lens is opening right (left side) eyeglass after closing completely, and reach in stabilization time at the liquid crystal molecule of right (left side) eyeglass, open the backlight module of each viewing area of liquid crystal display again, solve 3D eyeglass liquid crystal molecule and be tending towards propradation or closedown is in the process of decline state in unlatching, unlatching backlight, 3D eyeglass liquid crystal molecule rate of change and the asynchronous problem bringing human eye flickering of unlatching backlight rate of change.
In order to make the technical staff in the technical field of the invention more clearly understand the present invention, below in conjunction with accompanying drawing, by specific embodiment, technical solution of the present invention is described in detail.
Embodiment one:
In the embodiment of the present application, make an explanation for the liquid crystal display of 120Hz scanning point 6 sections of identical viewing areas of area, the application provides a kind of backlight module device, being applied in one includes in the electronic equipment of the display panel of 6 viewing areas, electronic equipment can be: TV, display or other display device, in this application, will differ a citing.
Backlight module device comprises:
Backlight module, comprise 6 region backlight modules, wherein, i-th region backlight module in described 6 region backlight modules is corresponding with i-th viewing area in described 6 viewing areas to be arranged, for providing light source for described i-th viewing area, i is arbitrary positive integer of 1 to 6;
Switch-linear hybrid unit, comprise 6 switch-linear hybrid subelements, wherein, i-th switch-linear hybrid subelement is coupled to i-th region backlight module of 6 region backlight modules, for reaching steady state (SS) at the liquid crystal molecule mating 3D glasses liquid crystal lens with described electronic equipment, and display image is when being addressed to i-th viewing area, controls described i-th region backlight module and is in open state; And
Region backlight control unit, comprise 6 and control subelement, wherein, i-th controls i-th region backlight module that subelement is coupled to 6 region backlight modules, for controlling the i-th road supply current of i-th region backlight module, to make the display brightness of described 6 viewing areas identical, wherein, the supply current having at least two region backlight modules corresponding in described 6 region backlight modules is not identical.
In the present embodiment, the also corresponding method for controlling backlight thereof providing a kind of backlight module, is applied in one and includes in the electronic equipment of the display panel of 6 viewing areas, comprising:
Arrange corresponding with i-th viewing area in described 6 viewing areas for i-th region backlight module in 6 region backlight modules, described i-th region backlight module provides light source for i-th viewing area, and i is the arbitrary positive integer between 6 and 0;
Steady state (SS) is reached at the liquid crystal molecule mating 3D glasses liquid crystal lens with described electronic equipment, and display image is when being addressed to i-th viewing area, control described i-th region backlight module by i-th switch-linear hybrid subelement and be in open state, wherein, i-th switch-linear hybrid subelement is the switch-linear hybrid subelement being coupled to i-th region backlight module of 6 region backlight modules in 6 switch-linear hybrid subelements comprising of switch-linear hybrid unit;
The i-th road supply current that subelement controls i-th region backlight module is controlled by i-th, to make the display brightness of described 6 viewing areas identical, wherein, the supply current having at least two region backlight modules corresponding in described 6 region backlight modules is not identical, and described i-th to control subelement be the control subelement that backlight control unit 6 of comprising in region control to be coupled in subelements i-th region backlight module of 6 region backlight modules.
In the present embodiment, as shown in Figure 1, adopt a kind of 120Hz 3D liquid crystal display of 6 segmentation region backlight control, that is: 6 sections of regions comprise: first area, second area, the 3rd region, the 4th region, the 5th region and the 6th region, a represents the liquid crystal molecule stabilization process of display panel in respective regions, b represents the liquid crystal molecule stabilization process of display panel in respective regions, and backlight control sequential represents the backlight open sequential of respective regions.
Wherein, showing a frame left side (right side) eye image refresh time is 8.3ms, wherein, and screen ginseng V
total=1125, effective display area is 1080 row, one two field picture liquid crystal address-time t=8.3*1080/1125=7.968ms, as Fig. 1 shows, the time coordinating shutter type 3 D spectacles to open the eyeglass of a corresponding left side (right side) eye is also 8.3ms, but, the response time that the unlatching of eyeglass liquid crystal molecule is risen and liquid crystal molecule closedown decline process need is certain, as: existing 3D glasses need 1.8ms usually, like this, liquid crystal molecule stabilization time of 3D eyeglass is 6.5ms, moreover, due to the 2nd in the middle of the liquid crystal display of 6 segmentation region backlight control, 3rd, 4th, the addressing of the 5th viewing area needs T.T. to be about 5.33ms, and correspondence is only 1.16ms at the 3D eyeglass liquid crystal molecule in first area, top and region, bottom the 6th stabilization time.
So, for ensureing in 3D eyeglass liquid crystal molecule steady time opening region backlight, just need the backlight of opening first area and the 6th region need be compressed in the 1.16ms time, otherwise, if when needs are by first area backlight open, this intra-zone branch liquid crystal molecule of display panel spends stationary phase, then backlight just has greater loss through the brightness of liquid crystal molecule; If when needs are by the 6th region backlight open, this intra-zone of display panel divides liquid crystal molecule then also not reach stationary phase, then backlight also has greater loss through the brightness of liquid crystal molecule, but it is relative, second area, the 3rd region, the 4th region, the 5th region, during backlight open, the liquid crystal molecule of display panel respective regions is owing to being in stationary phase, so backlight is best through the brightness of this region liquid crystal molecule.
In the technical scheme of the embodiment of the present application, for making up the backlight illumination in first area and the 6th region through few compared with other regions, the the 1st and the 6th road feed circuit that subelement controls first and the 6th region backlight module are controlled by the 1st and the 6th, the the 1st and the 6th road supply current is made to be greater than the 2nd, 3,4 and 5 tunnels for electric current, so just can ensure that the display brightness in the first to six region is identical, wherein, the 2nd, 3,4 and 5 tunnels can be identical for electric current.
Further, described 6 viewing areas are specially rectangular region or are trapezoidal region.
Described 6 viewing areas are specifically divided into rectangular region or in trapezoidal region by the described control method provided on the other hand.
Further, the quantity N of described viewing area also can be odd number, as 7 viewing areas, and 9 viewing areas etc.
On the other hand, when the quantity N in viewing area is odd number, a kind of control method provided in the embodiment of the present application, just can specifically divide odd number viewing area by the quantity of described viewing area.
In the present embodiment, when viewing area is divided into odd number, the zone line of display panel will be divided in a viewing area, because, the problem of dark space is had near the separatrix that favourable like this solution Region dividing brings, especially in large screen display device, relative user, sight line mainly concentrates on screen middle part, and this division just effectively can improve the image quality of zone line.
Further, described switch-linear hybrid unit, specifically also comprises:
Delay control circuit, is connected with described 6 switch-linear hybrid subelements respectively, during for reaching steady state (SS) at the liquid crystal molecule mating 3D glasses liquid crystal lens with described electronic equipment, and delays time to control i-th switch-linear hybrid subelement, delay time is △ Ti;
Described switch-linear hybrid unit also for when showing image and being addressed to i-th viewing area, controls described i-th region backlight module and is in open state.
On the other hand, the present embodiment also provides a kind of control method, comprising:
When the liquid crystal molecule mating 3D glasses liquid crystal lens with described electronic equipment reaches steady state (SS), delays time to control i-th switch-linear hybrid subelement, delay time is △ Ti;
When showing image and being addressed to i-th viewing area, control described i-th region backlight module and be in open state.
In the present embodiment, with reference to figure 1, delay control circuit, delays time to control the 1st, 2,3,4,5 and 6 switch-linear hybrid subelements, delay time is respectively △ T1, △ T2, △ T3, △ T4, △ T5 and △ T6.These 6 delay times are exactly the time being opened into this region backlight open from the first row liquid crystal molecule of respective regions.
Further, described delay control circuit concrete also for: described 6 region backlight module correspondences arrange described delay control circuit, and described delay control circuit correspondence generates 6 delay time △ Ti; Wherein, in described 6 delay time △ Ti, there are at least two △ Ti unequal, and the backlight module region one_to_one corresponding that region corresponding to unequal at least two △ Ti is not identical with supply current.
Further, the method in the embodiment of the present application also comprises:
Described 6 region backlight module correspondences arrange described delay control circuit, and described delay control circuit correspondence generates 6 delay time △ Ti;
Wherein, in described 6 delay time △ Ti, there are at least two △ Ti unequal, and the backlight module region one_to_one corresponding that region corresponding to unequal at least two △ Ti is not identical with supply current.
Please continue to refer to Fig. 1, in described △ T1, △ T2, △ T3, △ T4, △ T5 and △ T6, wherein, △ T2, △ T3, △ T4 and △ T5 are all equal, and △ T1 is maximum, and △ T6 is minimum.Unequal △ T1 and △ T6, with first area and the 6th unequal supply current in region, is one to one.
In the present embodiment, also other area segmentation modes can be selected, region area can be equal, also can be unequal, as: top and low side region area little, uneven brightness region area can be reduced like this, reduce the control area of different back facet current, easily be beneficial to and improve brightness uniformity further, and the little LED that provides in control area is relatively few.Wherein, it is corresponding when the LED of big current or Small current control is provided, the excessive reliability that causes of the power of LED reduces, and heat dissipation capacity is too high to partial face plate temperature greatly, impact local panel liquid crystal deflecting element characteristic, causes the problems such as local light leak, therefore, reduce the control area area of different back facet current, decrease the usage quantity adopting relatively large or Small current control LED, improve LED reliability and reduce the too high risk of local temperature.
On the other hand, the area segmentation method of varying number also can be selected, as: 5 sections of region backlight control, can be 7 sections of regions, can also be 8 sections of regions, those skilled in the art, can by simply deriving the region needing to improve backlight power supply circuit according to above-mentioned derivation mode.
Embodiment two:
Make an explanation for the liquid crystal display of 120Hz scanning point 7 sections of identical viewing areas of area below, as shown in Figure 2, the application provides a kind of television equipment, comprising:
Casing;
Display panel 2, arrange on the housing, described display panel 2 includes 7 viewing areas;
Backlight module device 3, is connected with described display panel 2;
Electric supply installation 4, is connected with described display panel 2 and described backlight module device 3;
Wherein, described backlight module device 3 comprises:
Backlight module 301, comprise 7 region backlight modules, wherein, i-th region backlight module in described 7 region backlight modules is corresponding with i-th viewing area in described 7 viewing areas to be arranged, for providing light source for described i-th viewing area, i is the arbitrary positive integer between 7 and 0;
Switch-linear hybrid unit 302, comprise 7 switch-linear hybrid subelements, wherein, i-th switch-linear hybrid subelement is coupled to i-th region backlight module of 7 region backlight modules, for reaching steady state (SS) at the liquid crystal molecule mating 3D glasses liquid crystal lens with described television equipment, and display image is when being addressed to i-th viewing area, controls described i-th region backlight module and is in open state; And
Region backlight control unit 303, comprise 7 and control subelement, wherein, i-th controls i-th region backlight module that subelement is coupled to 7 region backlight modules, for controlling the i-th road supply current of i-th region backlight module, to make the display brightness of described 7 viewing areas identical, wherein, the supply current having at least two region backlight modules corresponding in described 7 region backlight modules is not identical.
In the present embodiment, liquid crystal is divided into the first area of area equation, second area, the 3rd region, the 4th region, the 5th region, the 6th region and SECTOR-SEVEN territory, corresponding each area image address-time is t1, t2, t3, t4, t5, t6 and t7, wherein, when showing 3D rendering, showing a frame left side (right side) eye image refresh time is 8.3ms, wherein, and screen ginseng V
total=1125, effective display area is 1080 row, one two field picture liquid crystal address-time t=8.3*1080/1125=7.968ms, the time coordinating shutter type 3 D spectacles to open the eyeglass of a corresponding left side (right side) eye is also 8.3ms, but the response time that the unlatching of eyeglass liquid crystal molecule is risen and liquid crystal molecule closedown decline process need is certain, as: existing 3D glasses need 1.8ms usually, like this, liquid crystal molecule stabilization time of 3D eyeglass is 6.5ms, moreover, due to the 2nd in the middle of the liquid crystal display of 7 segmentation region backlight control, 3rd, 4th, the addressing of the 5th and the 6th viewing area needs T.T. to be about 5.69ms, like this, correspondence is only 0.81ms at the 3D eyeglass liquid crystal molecule in first area, top and SECTOR-SEVEN territory, bottom stabilization time, like this, for ensureing in 3D eyeglass liquid crystal molecule steady time opening region backlight, just need when opening the backlight of first area and SECTOR-SEVEN territory, by time compress in 0.81ms.
If when needing first area backlight open, this intra-zone branch liquid crystal molecule of display panel 2 spends stationary phase, then backlight just has greater loss through the brightness of liquid crystal molecule; In like manner, if when needing SECTOR-SEVEN territory backlight open, this intra-zone of display panel divides liquid crystal molecule then also not reach stationary phase, then backlight also has greater loss through the brightness of liquid crystal molecule, relative, due to second area, the 3rd region, the 4th region, the 5th region, the 6th region, during backlight open, the liquid crystal molecule of display panel respective regions owing to being in stationary phase, so backlight is best through the brightness of this region liquid crystal molecule.
In the method for the embodiment of the present application, for making up the backlight illumination in first area and SECTOR-SEVEN territory through few compared with other regions, the 1st and 7 road feed circuit that subelement controls the 1st and 7 region backlight modules are controlled by the 1st and 7, the 1st and 7 road supply currents are made to be greater than the 2nd, 3,4,5 and 6 tunnels for electric current, can ensure that the display brightness in the 1 to 7 region is identical like this, wherein, the 2nd, 3,4,5 and 6 tunnels can be identical for electric current.
Further, described 7 viewing areas are specially rectangular region or are trapezoidal region.
In the present embodiment, 7 rectangular regions or in the viewing area of trapezoid area, can area equation, also can be that area is unequal.
Further, described switch-linear hybrid unit 302, specifically also comprises:
Delay control circuit 3021, is connected with described 7 switch-linear hybrid subelements respectively, during for reaching steady state (SS) at the liquid crystal molecule mating 3D glasses liquid crystal lens with described electronic equipment, and delays time to control i-th switch-linear hybrid subelement, delay time is △ Ti;
Also for when showing image and being addressed to i-th viewing area, control described i-th region backlight module and be in open state.
Further, described delay control circuit 3021 also for:
In described 7 region backlight modules, correspondence arranges described delay control circuit, and described delay control circuit correspondence generates 7 delay time △ Ti,
Wherein, in described 7 delay time △ Ti, have at least two △ Ti unequal, and unequal described in region corresponding at least two the △ Ti backlight module region one_to_one corresponding not identical with supply current.
By the technical scheme in the one or more embodiments in the embodiment of the present application, at least following technique effect can be obtained:
First, the application provides a kind of backlight module device, control method and TV, have employed sectional area backlight module and control corresponding viewing area, coordinate the liquid crystal lens liquid crystal molecule of shutter type 3 D spectacles within the steady state (SS) time period, open backlight, and different supply current is set for different region backlight modules, arrange high backlight power supply electric current at the high backlight illumination of needs, high backlight illumination can make up liquid crystal molecule not at the display brightness in steady state (SS) region.Therefore, different backlight power supply electric current is set, solves the technical matters that the display brightness of 3D liquid crystal display is uneven, improve the brightness uniformity index of 3D display screen, improve 3D display effect.
Second, in the technical scheme of the application, when solving 3D cross-interference issue for cooperation, sequential opened by the eyeglass that coupling shutter type 3 D spectacles provides, that is: left (right side) lens is opening right (left side) eyeglass after closing completely, and reach in stabilization time at the liquid crystal molecule of right (left side) eyeglass, open the backlight module of liquid crystal display viewing area again, solve 3D eyeglass liquid crystal molecule and be tending towards propradation or closedown is in the process of decline state in unlatching, unlatching backlight, bring 3D eyeglass liquid crystal molecule rate of change and open the asynchronous problem bringing human eye flickering of backlight rate of change.
The above, only embodiments of the invention, not any pro forma restriction is done to the present invention, although the present invention discloses as above with embodiment, but and be not used to limit the present invention, any those skilled in the art, do not departing within the scope of technical solution of the present invention, make a little change when the technology contents of above-mentioned announcement can be utilized or be modified to the Equivalent embodiments of equivalent variations, in every case be do not depart from technical solution of the present invention content, according to any simple modification that technical spirit of the present invention is done above embodiment, equivalent variations and modification, all still belong in the scope of technical solution of the present invention.
Claims (15)
1. a backlight module device, is applied in one and includes in the electronic equipment of the display panel of N number of viewing area, N be more than or equal to 2 integer, it is characterized in that, comprising:
Backlight module, comprise N number of region backlight module, wherein, i-th region backlight module in the backlight module of described N number of region is corresponding with i-th viewing area in described N number of viewing area to be arranged, for providing light source for described i-th viewing area, i is the arbitrary positive integer between N and 0;
Switch-linear hybrid unit, comprise N number of switch-linear hybrid subelement, wherein, i-th switch-linear hybrid subelement is coupled to i-th region backlight module of N number of region backlight module, for reaching steady state (SS) at the liquid crystal molecule mating 3D glasses liquid crystal lens with described electronic equipment, and display image is when being addressed to i-th viewing area, controls described i-th region backlight module and is in open state; And
Region backlight control unit, comprise N number of control subelement, wherein, i-th controls i-th region backlight module that subelement is coupled to N number of region backlight module, for controlling the i-th road supply current of i-th region backlight module, to make the display brightness of described N number of viewing area identical, wherein, the supply current having at least two region backlight modules corresponding in the backlight module of described N number of region is not identical.
2. device according to claim 1, is characterized in that, described viewing area is specially rectangular region or is trapezoidal region.
3. device according to claim 2, is characterized in that, the quantity N of described viewing area specifically can be odd number.
4. the device according to claim 1 or 2 or 3, is characterized in that, described switch-linear hybrid unit, specifically also comprises:
Delay control circuit, is connected with described N number of switch-linear hybrid subelement respectively, during for reaching steady state (SS) at the liquid crystal molecule mating 3D glasses liquid crystal lens with described electronic equipment, and delays time to control i-th switch-linear hybrid subelement, delay time is △ Ti;
Also for when showing image and being addressed to i-th viewing area, control described i-th region backlight module and be in open state.
5. device according to claim 4, is characterized in that, described delay control circuit concrete also for:
Described N number of region backlight module correspondence arranges described delay control circuit, and described delay control circuit correspondence generates N number of delay time △ Ti,
Wherein, in described N number of delay time △ Ti, have at least two described △ Ti unequal, and unequal described at least two described △ Ti corresponding regions backlight module region one_to_one corresponding not identical with supply current.
6. a backlight module method for controlling backlight thereof, is applied in one and includes in the electronic equipment of the display panel of N number of viewing area, N be more than or equal to 2 integer, it is characterized in that, comprising:
Arrange corresponding with i-th viewing area in described N number of viewing area for i-th region backlight module in the backlight module of N number of region, described i-th region backlight module provides light source for i-th viewing area, and i is the arbitrary positive integer between N and 0;
Steady state (SS) is reached at the liquid crystal molecule mating 3D glasses liquid crystal lens with described electronic equipment, and display image is when being addressed to i-th viewing area, control described i-th region backlight module by i-th switch-linear hybrid subelement and be in open state, wherein, i-th switch-linear hybrid subelement is the switch-linear hybrid subelement being coupled to i-th region backlight module of N number of region backlight module in N number of switch-linear hybrid subelement of comprising of switch-linear hybrid unit;
The i-th road supply current that subelement controls i-th region backlight module is controlled by i-th, to make the display brightness of described N number of viewing area identical, wherein, the supply current having at least two region backlight modules corresponding in the backlight module of described N number of region is not identical, and described i-th to control subelement be the control subelement being coupled to i-th region backlight module of N number of region backlight module in N number of control subelement of comprising of region backlight control unit.
7. method according to claim 6, is characterized in that, the division of described viewing area is specially rectangular region or is trapezoidal region.
8. method according to claim 7, is characterized in that, the division numbers N of described viewing area specifically can be odd number.
9. the method according to claim 6 or 7 or 8, it is characterized in that, described step is mating 3D glasses liquid crystal lens liquid crystal molecule with described electronic equipment reaches steady state (SS), and display image is when being addressed to i-th viewing area, control described i-th region backlight module by i-th switch-linear hybrid subelement and be in open state, specifically also comprise:
When the liquid crystal molecule mating 3D glasses liquid crystal lens with described electronic equipment reaches steady state (SS), delays time to control i-th switch-linear hybrid subelement, delay time is △ Ti, when showing image and being addressed to i-th viewing area, controls described i-th region backlight module and is in open state.
10. method according to claim 9, is characterized in that, described delays time to control i-th switch-linear hybrid subelement, delay time is △ Ti, when showing image and being addressed to i-th viewing area, control described i-th region backlight module and be in open state, specifically also comprise:
Described N number of region backlight module correspondence arranges described delay control circuit, and described delay control circuit correspondence generates N number of delay time △ Ti,
Wherein, in described N number of delay time △ Ti, have at least two described △ Ti unequal, and unequal described at least two described △ Ti corresponding regions backlight module region one_to_one corresponding not identical with supply current.
11. 1 kinds of TVs, is characterized in that, comprising:
Casing;
Display panel, arrange on the housing, described display panel includes N number of viewing area, N be more than or equal to 2 integer,
Backlight module device, is connected with described display panel;
Electric supply installation, is connected with described display panel and described backlight module device;
Wherein, described backlight module device comprises:
Backlight module, comprise N number of region backlight module, wherein, i-th region backlight module in the backlight module of described N number of region is corresponding with i-th viewing area in described N number of viewing area to be arranged, for providing light source for described i-th viewing area, i is the arbitrary positive integer between N and 0;
Switch-linear hybrid unit, comprise N number of switch-linear hybrid subelement, wherein, i-th switch-linear hybrid subelement is coupled to i-th region backlight module of N number of region backlight module, for reaching steady state (SS) at the liquid crystal molecule mating 3D glasses liquid crystal lens with described TV, and display image is when being addressed to i-th viewing area, controls described i-th region backlight module and is in open state; And
Region backlight control unit, comprise N number of control subelement, wherein, i-th controls i-th region backlight module that subelement is coupled to N number of region backlight module, for controlling the i-th road supply current of i-th region backlight module, to make the display brightness of described N number of viewing area identical, wherein, the supply current having at least two region backlight modules corresponding in the backlight module of described N number of region is not identical.
12. TVs according to claim 11, is characterized in that, described backlight module device specifically also comprises:
The region that the described viewing area that described backlight module device comprises is rectangular or in trapezoidal region.
13. TVs according to claim 12, is characterized in that, described backlight module device specifically also comprises:
The quantity N of described viewing area can be odd number.
14. TVs according to claim 11 or 12 or 13, it is characterized in that, described switch-linear hybrid unit, specifically also comprises:
Delay control circuit, is connected with described N number of switch-linear hybrid subelement respectively, during for reaching steady state (SS) at the liquid crystal molecule mating 3D glasses liquid crystal lens with described TV, and delays time to control i-th switch-linear hybrid subelement, delay time is △ Ti;
Also for when showing image and being addressed to i-th viewing area, control described i-th region backlight module and be in open state.
15. TVs according to claim 14, is characterized in that, described delay control circuit also for:
Described N number of region backlight module correspondence arranges described delay control circuit, and described delay control circuit correspondence generates N number of delay time △ Ti,
Wherein, in described N number of delay time △ Ti, have at least two described △ Ti unequal, and unequal described at least two described △ Ti corresponding regions backlight module region one_to_one corresponding not identical with supply current.
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| CN201510153921.6A CN104715727B (en) | 2012-08-30 | 2012-08-30 | A kind of backlight module device and control method, TV |
| CN201210315647.4A CN102831863B (en) | 2012-08-30 | 2012-08-30 | Backlight module device, control method and television |
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| CN201210315647.4A CN102831863B (en) | 2012-08-30 | 2012-08-30 | Backlight module device, control method and television |
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| CN201510153921.6A Division CN104715727B (en) | 2012-08-30 | 2012-08-30 | A kind of backlight module device and control method, TV |
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| CN105047145B (en) * | 2015-09-14 | 2017-07-28 | 青岛海信电器股份有限公司 | Backlight brightness control method, backlight brightness control devices and display terminal |
| CN109243381B (en) * | 2018-11-07 | 2020-12-29 | 惠科股份有限公司 | Brightness adjusting method and system of display system and display system |
| CN109166537B (en) * | 2018-11-07 | 2021-08-24 | 惠科股份有限公司 | Brightness adjusting method and system of display system and display system |
| CN109243380B (en) * | 2018-11-07 | 2021-07-30 | 惠科股份有限公司 | Brightness adjusting method and system of display system and display system |
| CN109166535B (en) * | 2018-11-07 | 2021-08-24 | 惠科股份有限公司 | Brightness adjusting method and system of display system and display system |
| CN109243382B (en) * | 2018-11-07 | 2020-12-01 | 惠科股份有限公司 | Brightness adjusting method and system of display system and display system |
| CN109166536B (en) * | 2018-11-07 | 2020-11-24 | 惠科股份有限公司 | Brightness adjusting method and system of display system and display system |
| CN112419986A (en) * | 2019-08-20 | 2021-02-26 | Oppo广东移动通信有限公司 | Image display method, device and system of head-mounted display equipment |
| CN110930955A (en) * | 2019-12-26 | 2020-03-27 | 业成光电(无锡)有限公司 | Display and brightness adjusting method thereof |
| CN113421530B (en) * | 2021-06-07 | 2022-07-12 | Tcl华星光电技术有限公司 | Pixel driving circuit and backlight display |
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Address after: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Patentee after: Hisense Visual Technology Co., Ltd. Address before: 266555 Qingdao economic and Technological Development Zone, Shandong, Hong Kong Road, No. 218 Patentee before: QINGDAO HISENSE ELECTRONICS Co.,Ltd. |