CN205670225U - A kind of backlight module, display device - Google Patents
A kind of backlight module, display device Download PDFInfo
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- CN205670225U CN205670225U CN201620601555.6U CN201620601555U CN205670225U CN 205670225 U CN205670225 U CN 205670225U CN 201620601555 U CN201620601555 U CN 201620601555U CN 205670225 U CN205670225 U CN 205670225U
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- source assembly
- light
- viewing angle
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Abstract
This utility model embodiment provides a kind of backlight module, display device, relates to Display Technique field, it is possible in the case of without additionally carrying aid, for realizing the support that the switching at narrow visual angle and wide viewing angle provides certain.The territory, output optical zone of this backlight module is divided into initial field of view and is positioned at the viewing angle compensation region of initial field of view periphery.This backlight module includes the first light source assembly, the light that this first light source assembly sends is from initial field of view outgoing, also include secondary light source assembly, the light that this secondary light source assembly sends is at least from the outgoing of viewing angle compensation region, and the switch control terminal of the first light source assembly is non-electric-connecting with the switch control terminal of secondary light source assembly.
Description
Technical field
This utility model relates to Display Technique field, particularly relates to a kind of backlight module, display device.
Background technology
Along with the development of Display Technique, the portable electric appts such as smart mobile phone and panel computer is more and more general
And so that people have more chance and time to use communication software in public, browse webpage or process electronics postal
Part.But, in public, such as the when of taking public transport, use portable electric appts, the picture on screen
Information may be seen by neighbouring passenger, the leakage of personal information such as personal information or private code of being easily caused user.
In order to prevent other people from spying in prior art, it is possible to use use peep-proof glasses, this prevents user the most on tape
After spying on glasses, the picture of display on portable electric appts can be seen clearly.It is arranged at portable electric further, it is also possible to use
Blocking parts on subset covers the periphery of display screen to reduce visual angle.But above two mode is required to by additionally
Aid, reduce user use convenience.
Utility model content
Embodiment of the present utility model provides a kind of backlight module, display device, it is possible to without additionally carrying auxiliary work
In the case of tool, for realizing the support that the switching at narrow visual angle and wide viewing angle provides certain.
For reaching above-mentioned purpose, embodiment of the present utility model adopts the following technical scheme that
The one side of this utility model embodiment, it is provided that a kind of backlight module, at the beginning of the territory, output optical zone of backlight module is divided into
Beginning field of view and be positioned at the viewing angle compensation region of described initial field of view periphery；Described backlight module includes: the first light
Source component, the light that described first light source assembly sends is from described initial field of view outgoing；Secondary light source assembly, described second
The light that light source assembly sends is at least from described viewing angle compensation region outgoing；Wherein, the on-off control of described first light source assembly
Hold non-electric-connecting with the switch control terminal of described secondary light source assembly.
Preferably, also include being arranged in described initial field of view, and be positioned at the visual angle of the first light source assembly light emission side
Controller, the light that described first light source assembly sends to described viewing angle control device, and going out from described viewing angle control device
Light side exiting parallel.
Preferably, described first light source assembly includes the first light guide plate, and is arranged at described first light guide plate incident side
The first sub-light source；Described first light guide plate deviates from the side of described viewing angle control device, arranges in described initial field of view
There is site.
Preferably, described secondary light source assembly includes the second light guide plate, and is arranged at described second light guide plate incident side
The second sub-light source；Described second light guide plate deviates from the side of described viewing angle control device, at least in described viewing angle compensation region
It is provided with site.
Preferably, described secondary light source assembly includes the second light guide plate, is arranged at the of described second light guide plate incident side
Two sub-light sources, and be arranged at described second light guide plate and deviate from the 3rd light guide plate of described viewing angle control device side；Described second
Light guide plate, near the side of described viewing angle control device, is provided with site in described initial field of view；Described 3rd light guide plate
Deviate from the side of described viewing angle control device, and at least in described viewing angle compensation region, be provided with site.
Preferably, described first light source assembly is included in described initial field of view, the multiple luminescences being uniformly distributed in
Device；In described secondary light source assembly includes being described viewing angle compensation region, equally distributed multiple luminescent devices.
Preferably, in described initial field of view, described viewing angle control device is near the side of described first light source assembly
It is provided with diffusion sheet or diffuser plate.
Preferably, described first light source assembly is arranged at the incident side of described secondary light source assembly, is deviating from described second
The light emission side of light source assembly is provided with reflector plate.
Preferably, described viewing angle control device is light oriented film, is collimated light from the light of described smooth oriented film outgoing.
The another aspect of this utility model embodiment, it is provided that a kind of display device, including any one back of the body as above
Light module.
This utility model embodiment provides a kind of backlight module, display device, and this backlight module is divided into initial visual angle district
Territory and be positioned at the viewing angle compensation region of described initial field of view periphery.Backlight module includes the first light source assembly, the first light
The light that source component sends is from initial field of view outgoing.This backlight module also includes secondary light source assembly, secondary light source assembly
The light sent is at least from the outgoing of viewing angle compensation region；Wherein, the switch control terminal of the first light source assembly and secondary light source assembly
Switch control terminal non-electric-connecting.
In the case, when the narrow visual angle of needs shows, due to switch control terminal and the secondary light source of the first light source assembly
The switch control terminal of assembly is non-electric-connecting, therefore can only open this backlight module by the switch control terminal of the first light source assembly
In the first light source assembly, the light that this first light source assembly sends is from initial field of view outgoing, so that this backlight mould
The the first visual angle backlight used when group can provide narrow visual angle to show.When needs wide viewing angle shows, by the first light source assembly
Switch control terminal open the first light source assembly, open secondary light source group by the switch control terminal of secondary light source assembly simultaneously
Part, the light sent due to secondary light source assembly at least can be from the outgoing of viewing angle compensation region, and therefore this viewing angle compensation region is sent out
Above-mentioned first visual angle backlight can be compensated by the light gone out, so that this backlight module can provide wide viewing angle to make when showing
The second visual angle backlight.So, when this backlight module is applied to display device, can be by backlight module
The scope providing backlight switches over, to realize the narrow visual angle of display device and the switching of wide viewing angle.Due at above-mentioned handoff procedure
Middle user, without additionally carrying aid, therefore improves the convenience that user uses.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will be to embodiment
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, the accompanying drawing in describing below is only
It is embodiments more of the present utility model, for those of ordinary skill in the art, in the premise not paying creative work
Under, it is also possible to other accompanying drawing is obtained according to these accompanying drawings.
The division schematic diagram in the territory, backlight module output optical zone that Fig. 1 a provides for this utility model embodiment；
The structural representation of a kind of backlight module that Fig. 1 b provides for this utility model embodiment；
The structural representation of the another kind of backlight module that Fig. 1 c provides for this utility model embodiment；
Fig. 2 is the structural representation being provided with viewing angle control device in Fig. 1 c；
Fig. 3 is the first light source assembly and a kind of structural representation of secondary light source assembly in Fig. 2；
Fig. 4 is the first light source assembly and the another kind of structural representation of secondary light source assembly in Fig. 2；
Fig. 5 is another structural representation of the first light source assembly and secondary light source assembly in Fig. 2；
Fig. 6 is the yet another construction schematic diagram of the first light source assembly and secondary light source assembly in Fig. 2；
The structural representation of a kind of down straight aphototropism mode set that Fig. 7 provides for this utility model embodiment；
The control method flow chart of a kind of backlight module that Fig. 8 provides for this utility model embodiment；
Fig. 9 controls the structural representation of device for a kind of backlight module that this utility model embodiment provides.
Reference:
The initial field of view of 01-；02-viewing angle compensation region；10-the first light source assembly；11-site；101-first is guide-lighting
Plate；102-the first sub-light source；20-secondary light source assembly；201-the second light guide plate；202-the second sub-light source；30-viewing angle control
Device；40-diffusion sheet or diffuser plate；50-reflector plate；60-luminescent device；300-receiver module；301-control module.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is carried out
Clearly and completely describe, it is clear that described embodiment is only a part of embodiment of this utility model rather than whole
Embodiment.Based on the embodiment in this utility model, those of ordinary skill in the art are not under making creative work premise
The every other embodiment obtained, broadly falls into the scope of this utility model protection.
This utility model embodiment provides a kind of backlight module, and as shown in Figure 1a, the territory, output optical zone of this backlight module is permissible
It is divided into initial field of view 01 and is positioned at the viewing angle compensation region 02 of initial field of view 01 periphery.Wherein, above-mentioned backlight
The territory, output optical zone of module refers to, on backlight module actual can be luminous region, owing to backlight module also needs to arrange drive division
Part or for providing the parts of light source, the position that arranges of above-mentioned parts is not belonging to territory, above-mentioned output optical zone.
In the case, above-mentioned backlight module includes the first light source assembly and secondary light source assembly, wherein, such as Fig. 1 b institute
Showing, the first light source assembly 10 is positioned in above-mentioned initial field of view 01, and secondary light source assembly 20 may be located at above-mentioned visual angle and mends
Repay in region 02, i.e. can arrange around the periphery of the first light source assembly 10.
Or, as illustrated in figure 1 c, the first light source assembly 10 deviates from the side B of light emission side and is provided with above-mentioned secondary light source assembly
20。
The set-up mode of the first light source assembly 10 and secondary light source assembly 20 is not limited by this utility model, as long as can
Ensure that light that the first light source assembly 10 sends is from the outgoing of above-mentioned initial field of view 01,20 light sent of secondary light source group
At least from the outgoing of above-mentioned compensation field of view 02.Wherein, 20 light sent of secondary light source group are at least from above-mentioned compensation
Field of view 02 outgoing refers to, 20 light sent of secondary light source group can be as shown in Figure 1 b only from above-mentioned compensation field of view
02 outgoing, or as illustrated in figure 1 c, a part for 20 light sent of secondary light source group can go out from initial field of view 01
Penetrating, another part is from compensating field of view 02 outgoing.
Additionally, the switch control terminal of the first light source assembly 10 is non-electric-connecting with the switch control terminal of secondary light source assembly 20,
Refer to that the switch control terminal of the first light source assembly 10 and the switch control terminal of secondary light source assembly 20 are opening of two independent controls
Close and control end.The switch control terminal of the i.e. first light source assembly 10, will not when controlling the opening and closing of the first light source assembly 10
The state that is turned on and off of secondary light source assembly 20 is impacted.In like manner the switch control terminal of secondary light source assembly 20 is controlling
During the opening and closing of secondary light source assembly 20, the state that is turned on and off of the first light source assembly 10 will not be impacted, with
The state that is turned on and off making the first light source assembly 10 and secondary light source assembly 20 can individually be controlled.
Such as, when the first light source assembly 10 is opened, and when secondary light source assembly 20 is closed, the switch of the first light source assembly 10
Control end controls the first light source assembly 10 and opens, and the switch control terminal of secondary light source assembly 20 controls secondary light source assembly 20 and closes
Close.
The most such as, when the first light source assembly 10 needs to open with secondary light source assembly 20 simultaneously, the first light source assembly 10
Switch control terminal control the first light source assembly 10 and open, the switch control terminal of secondary light source assembly 20 controls secondary light source simultaneously
Assembly 20 is opened.
In sum, when the narrow visual angle of needs shows, due to switch control terminal and the secondary light source group of the first light source assembly
The switch control terminal of part is non-electric-connecting, therefore only can be opened in this backlight module by the switch control terminal of the first light source assembly
The first light source assembly, the light that this first light source assembly sends is from initial field of view outgoing, so that this backlight module
The the first visual angle backlight used when narrow visual angle can be provided to show.When needs wide viewing angle shows, by the first light source assembly
Switch control terminal opens the first light source assembly, opens secondary light source assembly by the switch control terminal of secondary light source assembly simultaneously,
The light sent due to secondary light source assembly at least can be from the outgoing of viewing angle compensation region, and therefore this viewing angle compensation region sends
Above-mentioned first visual angle backlight can be compensated by light, so that use when this backlight module can provide wide viewing angle to show
Second visual angle backlight.So, when this backlight module is applied to display device, can be by backlight module be provided
The scope of backlight switches over, to realize the narrow visual angle of display device and the switching of wide viewing angle.Owing to using in above-mentioned handoff procedure
Family, without additionally carrying aid, therefore improves the convenience that user uses.
Further, in order to the direction of the light that initial field of view 01 sends is controlled so that light all towards
The outgoing of same direction, thus improve the precision of viewing angle control, preferably as in figure 2 it is shown, above-mentioned backlight module also includes arranging
In initial field of view 01, and it is positioned at the viewing angle control device 30 of the first light source assembly 10 light emission side.First light source assembly 10
The light gone out is to viewing angle control device 30, and from the light emission side exiting parallel of viewing angle control device 30.On this basis, further
Preferably, this viewing angle control device 30 can be light oriented film, is collimated light from the light of this light oriented film outgoing.So,
When the narrow visual angle of needs shows, as long as user's viewing faces the center of display floater i.e. it can be seen that the narrowest visual angle
Picture, meets the viewing custom of user.
Hereinafter, the concrete structure of above-mentioned first light source assembly 10 and secondary light source assembly 20 is carried out detailed illustrating
Bright.
Embodiment one
Backlight module in the present embodiment is side entrance back module.
As it is shown on figure 3, the first light source assembly 10 includes the first light guide plate 101, and it is arranged at the first light guide plate 101 and enters light
First sub-light source 102 of side.This first light guide plate 101 deviates from the side of viewing angle control device 30, sets in initial field of view 01
It is equipped with site 11.
It should be noted that so that the light that sends of the first light source assembly 10 is from initial angle region in the present embodiment
01 outgoing, the light of the light emission side outgoing of the first light guide plate 101 needs all to be incident to above-mentioned viewing angle control device 30.As long as concrete
Ensure that the light derived by the site 11 ' of this first light guide plate 101 marginal position close on the first light guide plate 101 can be incident to
Viewing angle control device 30.In order to achieve the above object, the most above-mentioned first light guide plate 101 is provided with the region needs of site
It is completely covered by viewing angle control device 30, the i.e. first light guide plate 101 is provided with the region of site and the position of viewing angle control device 30
The area in the region being provided with site in upper and lower corresponding, and the first light guide plate 101 is less than the area of viewing angle control device 30.
Wherein, herein, the directional terminology such as "up" and "down" is to illustrate, relative to the backlight module in accompanying drawing, the side placed
Position defines, it should be understood that, these directional terminology are relative concepts, they for relative to description and clarification,
It correspondingly can change according to the change in the orientation that backlight module is placed.
Additionally, secondary light source assembly 20 includes the second light guide plate 201, and it is arranged at the second light guide plate 201 incident side
Second sub-light source 202.This second light guide plate 201 deviates from the side of viewing angle control device 30, at least sets in viewing angle compensation region 02
It is equipped with site 11.
Wherein, above-mentioned second light guide plate 201 deviates from the side of viewing angle control device 30, at least sets in viewing angle compensation region 02
Being equipped with site 11 to refer to, the second light guide plate 201 deviates from the side of viewing angle control device 30 and can only set in viewing angle compensation region 02
Be equipped with site 11, or the second light guide plate 201 deviate from the side of viewing angle control device 30 can be in viewing angle compensation region 02 and initial
Above-mentioned site 11 it is provided with in field of view 01.
So, when the narrow visual angle of needs shows, the first sub-light source 102 can only be opened so that the first sub-light source 102
The light sent is under the effect of the first light guide plate 101, only from the outgoing of initial field of view 01, so that this backlight module energy
The the first visual angle backlight used when enough providing narrow visual angle to show.And when needs wide viewing angle shows, above-mentioned can be opened simultaneously
One sub-light source 102 and the second sub-light source 202.Make light that the second sub-light source 202 sends in the effect of the second light guide plate 201
Under, at least from viewing angle compensation region 02 outgoing, thus above-mentioned first visual angle backlight can be compensated, so that this backlight mould
The the second visual angle backlight used when group can provide wide viewing angle to show.
It should be noted that the incident side of above-mentioned first light guide plate 101 and the second light guide plate 201 can be as it is shown on figure 3, only
Having side is incident side, or can also be respectively provided with above-mentioned sub-light source in the both sides of above-mentioned light guide plate as shown in Figure 4, so that
The both sides obtaining above-mentioned light guide plate are incident side.
On this basis, in order to improve the uniformity of the first light guide plate 101 emergent ray, or when the second light guide plate 201
Deviate from the side of viewing angle control device 30 when being provided with above-mentioned site 11 in viewing angle compensation region 02 and initial field of view 01,
Improve the uniformity of the second light guide plate 201 emergent ray.Preferably, as it is shown on figure 3, in initial field of view 01, at visual angle
Controller 30 is provided with diffusion sheet or diffuser plate 40 near the side of the first light source assembly 101.Such that it is able to pass through diffusion sheet
Or the diffusion of diffuser plate 40, by the line source uniform diffusion layer area source of above-mentioned light guide plate outgoing, then by this face light
Source is incident to viewing angle control device 30, so that disperseing more uniform from the directional light of viewing angle control device 30 outgoing.
Further, in order to improve the utilization rate of light, when the first light source assembly 10 is arranged at secondary light source assembly 20
During incident side, reflector plate can be set in the light emission side deviating from secondary light source assembly 20.The scheme that i.e. the present embodiment is provided,
As it is shown on figure 3, above-mentioned reflector plate 50 can be arranged in the light emission side deviating from the second light guide plate 201.Light in light guide plate in theory
Line is only arranging position outgoing inside light guide plate of site 11, and the light of other position all occurs complete inside light guide plate
Reflection.But during actual production and use, also have fraction of light owing to being led in the position being not provided with site 11
Light panel material and the impact of preparation technology, can be from the internal outgoing of light guide plate.In the case, when deviating from the second light guide plate
When the light emission side of 201 arranges above-mentioned reflector plate 50, it is possible to make the above-mentioned light from the internal outgoing of light guide plate reflex to leaded light again
In plate, thus the utilization rate of the light improved.
Based on this, only it is provided with the first sub-light source 102, the second light guide plate in side when the first light guide plate 101 as shown in Figure 5
201 is same only when side is provided with the second sub-light source 202, above-mentioned light guide plate can be provided with the opposite side of sub-light source and set
Put above-mentioned reflector plate 50, the utilization rate of light can be improved further.
Embodiment two
Backlight module in the present embodiment is side entrance back module, and the structure of the first light source assembly 10 and embodiment one
Identical.
Difference is, as shown in Figure 6, secondary light source assembly 20 includes the second light guide plate 201, is arranged at the second leaded light
Second sub-light source 202 of plate 201 incident side, and be arranged at the second light guide plate 201 and deviate from the 3rd of viewing angle control device 30 side the
Light guide plate 203.Second light guide plate 201, near the side of viewing angle control device 30, is provided with site 11 in initial field of view 01.
So, so that the light in the second light guide plate 201 is under the effect of above-mentioned site 11, it is incident to the 3rd light guide plate
203。
In the case, the 3rd light guide plate 203 deviates from the side of viewing angle control device 30, and at least in viewing angle compensation region 02
Inside being provided with site, the i.e. the 3rd light guide plate 203 deviates from the side of viewing angle control device 30 and can only set in viewing angle compensation region 02
Be equipped with site 11, or the 3rd light guide plate 203 deviate from the side of viewing angle control device 30 can be in viewing angle compensation region 02 and initial
Above-mentioned site 11 it is provided with in field of view 01.
So, when the narrow visual angle of needs shows, the first sub-light source 102 can only be opened so that the first sub-light source 102
The light sent is under the effect of the first light guide plate 101, only from the outgoing of initial field of view 01, so that this backlight module energy
The the first visual angle backlight used when enough providing narrow visual angle to show.And when needs wide viewing angle shows, above-mentioned can be opened simultaneously
One sub-light source 102 and the second sub-light source 202.The light that second sub-light source 202 is sent is led at the second light guide plate 201 and the 3rd
Under the effect of tabula rasa 203, at least from viewing angle compensation region 02 outgoing, thus above-mentioned first visual angle backlight can be compensated,
So that the second visual angle backlight used when this backlight module can provide wide viewing angle to show.
Additionally, the set-up mode of diffusion sheet in the present embodiment or diffuser plate 40 and reflecting piece 50 is with embodiment one,
Here is omitted.
Embodiment three
Backlight module in the present embodiment is down straight aphototropism mode set.
Concrete, the first light source assembly 10 includes as it is shown in fig. 7, in initial field of view 01, be uniformly distributed in many
Individual luminescent device 60.In secondary light source assembly 20 includes being viewing angle compensation region 01, equally distributed multiple luminescent devices 60.
Wherein, above-mentioned luminescent device 60 can be light emitting diode.The handoff procedure of the narrowest visual angle and wide viewing angle and embodiment one and
In like manner, here is omitted for embodiment two.
The control method of this utility model embodiment a kind of backlight module of offer, as shown in Figure 8, including:
S101, when receiving the first control instruction, open the first light source assembly 10, the light that this first light source assembly 10 sends
Line is incident to viewing angle control device 30, and from the light emission side exiting parallel of viewing angle control device 30, to provide the first visual angle backlight.
S102, when receiving the second control instruction, open the first light source assembly 10 and secondary light source assembly 20 simultaneously, second
The light that light source assembly 20 sends at least exposes to viewing angle compensation region 02, compensates the first visual angle backlight, with by first
Visual angle backlight switches to the second visual angle backlight.
So, when the narrow visual angle of needs shows, can only open the first light source assembly in this backlight module, this is years old
The light that one light source assembly sends is from initial field of view outgoing, during so that this backlight module can provide narrow visual angle to show
The the first visual angle backlight used.When needs wide viewing angle shows, the first light source assembly in this backlight module and secondary light source group
Part is opened simultaneously, and the light sent due to secondary light source assembly at least can be from the outgoing of viewing angle compensation region, and therefore this visual angle is mended
Repay the light that region sends can above-mentioned first visual angle backlight be compensated, so that this backlight module can provide wide viewing angle
The the second visual angle backlight used during display.So, when by time in this backlight module application to display device, it is right to pass through
Backlight module provides the scope of backlight to switch over, to realize the narrow visual angle of display device and the switching of wide viewing angle.Due to above-mentioned
In handoff procedure, user is without additionally carrying aid, therefore improves the convenience that user uses.
This utility model embodiment provides a kind of backlight module to control device, and this backlight module controls device and above-mentioned backlight
Module is connected, for realizing the switching between the first visual angle backlight of backlight module and the second visual angle backlight.Concrete such as Fig. 9
Shown in, this backlight module controls device can include receiver module 300 and the control module being connected with receiver module 300
301。
Wherein, receiver module 300, it is used for receiving control instruction, and this control instruction is issued control module 301.Specifically
Above-mentioned control instruction include: the first control instruction or the second control instruction.
In the case, control module 300 is for when receiving above-mentioned first control instruction, by the first light source assembly
Switch control terminal opens the first light source assembly 10.The light that this first light source assembly 10 sends to viewing angle control device 30, and
From the light emission side exiting parallel of viewing angle control device 30, to provide the first visual angle backlight.
Or control module 300 is for when receiving above-mentioned second control instruction, by opening of described first light source assembly
Close control end and open the first light source assembly 10, open secondary light source assembly by the switch control terminal of secondary light source assembly simultaneously
20.The light that this secondary light source assembly 20 sends at least exposes to viewing angle compensation region 02, carries out above-mentioned first visual angle backlight
Compensate, so that this first visual angle backlight is switched to the second visual angle backlight.
Wherein, when the first visual angle backlight that this above-mentioned backlight module is supplied to is for showing at narrow visual angle, to display floater
Backlight is provided, and the second visual angle backlight is for when wide viewing angle shows, provides backlight to display floater.So, when should
When backlight module is applied to display device, can switch over by backlight module being provided the scope of backlight, aobvious to realize
The narrow visual angle of showing device and the switching of wide viewing angle.Due in above-mentioned handoff procedure user without additionally carrying aid, therefore
Improve the convenience that user uses.
This utility model embodiment provides a kind of display device, including any one backlight module above-mentioned and above-mentioned backlight
Module controller.Have and control the identical structure of device with the backlight module that previous embodiment provides and backlight module and have
Benefit effect, structure and beneficial effect that backlight module and backlight module have controlled device due to previous embodiment are carried out
Detailed description, here is omitted.
It should be noted that in this utility model embodiment, display device specifically can include liquid crystal indicator, example
If this display device can be that liquid crystal display, LCD TV, DPF, mobile phone or panel computer etc. are any, there is display merit
The product of energy or parts.
The above, detailed description of the invention the most of the present utility model, but protection domain of the present utility model does not limit to
In this, any those familiar with the art, in the technical scope that this utility model discloses, can readily occur in change
Or replace, all should contain within protection domain of the present utility model.Therefore, protection domain of the present utility model should be with described power
The protection domain that profit requires is as the criterion.
Claims (10)
1. a backlight module, it is characterised in that the territory, output optical zone of backlight module is divided into initial field of view and is positioned at institute
State the viewing angle compensation region of initial field of view periphery；
Described backlight module includes: the first light source assembly, and the light that described first light source assembly sends is from described initial visual angle district
Territory outgoing；
Secondary light source assembly, the light that described secondary light source assembly sends is at least from described viewing angle compensation region outgoing；
Wherein, the switch control terminal of described first light source assembly is non-electric-connecting with the switch control terminal of described secondary light source assembly.
Backlight module the most according to claim 1, it is characterised in that also include being arranged in described initial field of view,
And it is positioned at the viewing angle control device of the first light source assembly light emission side, the light that described first light source assembly sends to described visual angle
Controller, and from the light emission side exiting parallel of described viewing angle control device.
Backlight module the most according to claim 2, it is characterised in that described first light source assembly includes the first light guide plate,
And it is arranged at the first sub-light source of described first light guide plate incident side；
Described first light guide plate deviates from the side of described viewing angle control device, is provided with site in described initial field of view.
4. according to the backlight module described in Claims 2 or 3, it is characterised in that described secondary light source assembly includes that second is guide-lighting
Plate, and it is arranged at the second sub-light source of described second light guide plate incident side；
Described second light guide plate deviates from the side of described viewing angle control device, is at least provided with net in described viewing angle compensation region
Point.
5. according to the backlight module described in Claims 2 or 3, it is characterised in that described secondary light source assembly includes that second is guide-lighting
Plate, be arranged at the second sub-light source of described second light guide plate incident side, and be arranged at described second light guide plate deviate from described in regard
3rd light guide plate of angle controller side；
Described second light guide plate, near the side of described viewing angle control device, is provided with site in described initial field of view；
Described 3rd light guide plate deviates from the side of described viewing angle control device, and is at least provided with net in described viewing angle compensation region
Point.
Backlight module the most according to claim 1, it is characterised in that described first light source assembly is included in and described initially regards
In angular zone, the multiple luminescent devices being uniformly distributed in；
In described secondary light source assembly includes being described viewing angle compensation region, equally distributed multiple luminescent devices.
Backlight module the most according to claim 2, it is characterised in that in described initial field of view, described visual angle is controlled
Device processed is provided with diffusion sheet or diffuser plate near the side of described first light source assembly.
Backlight module the most according to claim 1, it is characterised in that described first light source assembly is arranged at described second light
The incident side of source component, is provided with reflector plate in the light emission side deviating from described secondary light source assembly.
Backlight module the most according to claim 2, it is characterised in that described viewing angle control device is light oriented film, from described
The light of light oriented film outgoing is collimated light.
10. a display device, it is characterised in that include the backlight module as described in any one of claim 1-9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620601555.6U CN205670225U (en) | 2016-06-17 | 2016-06-17 | A kind of backlight module, display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105974663A (en) * | 2016-06-17 | 2016-09-28 | 京东方科技集团股份有限公司 | Backlight module and control method and control device thereof and display device |
| WO2019034557A1 (en) * | 2017-08-14 | 2019-02-21 | Sioptica Gmbh | Screen for a free viewing mode and a restricted viewing mode, and use of same |
| CN114137753A (en) * | 2021-11-24 | 2022-03-04 | Tcl华星光电技术有限公司 | Display module and display device |
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2016
- 2016-06-17 CN CN201620601555.6U patent/CN205670225U/en active Active
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN105974663A (en) * | 2016-06-17 | 2016-09-28 | 京东方科技集团股份有限公司 | Backlight module and control method and control device thereof and display device |
| WO2017215360A1 (en) * | 2016-06-17 | 2017-12-21 | 京东方科技集团股份有限公司 | Backlight module, control method and control apparatus therefor, and corresponding display apparatus |
| US10588189B2 (en) | 2016-06-17 | 2020-03-10 | Boe Technology Group Co., Ltd. | Backlight module comprising view angle controller, control method and control device thereof |
| CN105974663B (en) * | 2016-06-17 | 2023-05-26 | 京东方科技集团股份有限公司 | Backlight module, control method and control device thereof and display device |
| WO2019034557A1 (en) * | 2017-08-14 | 2019-02-21 | Sioptica Gmbh | Screen for a free viewing mode and a restricted viewing mode, and use of same |
| CN110741313A (en) * | 2017-08-14 | 2020-01-31 | 矽光学有限公司 | Display screen with free view mode and limited view mode and application thereof |
| US10768355B2 (en) | 2017-08-14 | 2020-09-08 | Sioptica Gmbh | Screen for a free and a restricted viewing mode and application thereof |
| TWI705285B (en) * | 2017-08-14 | 2020-09-21 | 德商矽光學公司 | Screen for a free and a restricted viewing mode and application thereof |
| CN110741313B (en) * | 2017-08-14 | 2021-08-06 | 矽光学有限公司 | Display screen with free view mode and limited view mode and application thereof |
| CN114137753A (en) * | 2021-11-24 | 2022-03-04 | Tcl华星光电技术有限公司 | Display module and display device |
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