CN207301564U - Light source module - Google Patents
Light source module Download PDFInfo
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- CN207301564U CN207301564U CN201721269008.3U CN201721269008U CN207301564U CN 207301564 U CN207301564 U CN 207301564U CN 201721269008 U CN201721269008 U CN 201721269008U CN 207301564 U CN207301564 U CN 207301564U
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- 239000012788 optical film Substances 0.000 claims abstract description 12
- 238000009792 diffusion process Methods 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 10
- 238000005516 engineering process Methods 0.000 description 6
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 239000012141 concentrate Substances 0.000 description 2
- 239000004973 liquid crystal related substance Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
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- 238000000465 moulding Methods 0.000 description 1
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Abstract
The utility model discloses a kind of light source module, including the first light guide plate, 2 first light sources, the second light guide plate and secondary light source.First light guide plate has indent in multiple first micro-structures of the first bottom surface of the first light guide plate, every one first micro-structure has the first inclined-plane and the second inclined-plane, there is the first angle between first inclined-plane and the first bottom surface, there is the second angle, and the first angle is equal to the second angle between second inclined-plane and the first bottom surface.2 first light sources are respectively arranged at by 2 first incidence surfaces of the first light guide plate.Second light guide plate is configured above the first light-emitting surface of the first light guide plate, and secondary light source is configured at by the second incidence surface of the second light guide plate, wherein not having the optical film for deviation light between the first light guide plate and the second light guide plate.
Description
Technical field
The utility model is on a kind of light source module, and especially in regard to a kind of with narrow viewing angle pattern and wide angle mode
Light source module.
Background technology
The application range of liquid crystal display is more and more wider now, and when user operation ATM, notebook computer or
Various running gears, if it is desired to possess individual privacy, avoid around or people by the side of when spying on the content of display, it may be desirable to show
The visible angle of device is narrower, allows the only square content that oneself can see that display in front of the display.And in the feelings generally used
Under condition, user can wish that the visible angle of display is wider, and the people that can not only share display content to surrounding watches, also not
Can be because moving or the position of eyes results in watching the situation of display content.
However, the visible angle of general liquid crystal display is fixed, can not need to switch at any time depending on user.Mesh
It is preceding to sell peep-proof piece used in display on the market, through peep-proof piece is attached on display can reduce display can
The scope of angle, achievees the purpose that to prevent people by the side of from spying on display content.However, installation peep-proof piece is not only troublesome, reduces
Display quality, also can not switching display at any time visible angle.Therefore, the aobvious of visible angle can be switched at any time by how making
Show device actually this area related personnel focus of interest.
This " background technology " paragraph is used only to help and understands the utility model content, therefore institute is public in " background technology "
The content opened may include some known technologies for not forming road known to those skilled in the art.In addition, in " background technology "
Disclosed in content do not represent the content or the utility model one or more embodiment problem to be solved, also not
Representative has been readily known to those persons skilled in the art or has recognized before the present utility model application.
Utility model content
The utility model provides a kind of light source module, its with narrow viewing angle pattern and wide angle mode, can allow user with
When switching using the utility model light source module display visible angle.
The other objects and advantages of the utility model can be obtained from technical characteristic disclosed in the utility model into one
The understanding of step.
It is that one of above-mentioned or partly or entirely purpose or one of other purposes, the utility model embodiment offer one is provided
Kind light source module, including the first light guide plate, 2 first light sources, the second light guide plate and secondary light source.First light guide plate has first
Light-emitting surface, the first bottom surface, 2 first incidence surfaces and multiple first micro-structures, the first light-emitting surface is opposite with the first bottom surface, and each
One incidence surface is connected between the first light-emitting surface and the first bottom surface, these first incidence surfaces are relative to each other, these first micro-structures
Indent has the first inclined-plane and the second inclined-plane in the first bottom surface, the first micro-structure of each of which, and it is oblique that the first inclined-plane is connected to second
Between face and the first bottom surface, the second inclined-plane is connected between the first inclined-plane and the first bottom surface, between the first inclined-plane and the first bottom surface
With the first angle, there is the second angle, and the first angle is equal to the second angle between the second inclined-plane and the first bottom surface.2 first
Light source is respectively arranged at by these first incidence surfaces, these first light sources be used for send the first light, these first light via
These first incidence surfaces are transferred in the first light guide plate.Second light guide plate is configured above the first light-emitting surface of the first light guide plate,
And second light guide plate include the second light-emitting surface, the second bottom surface and the second incidence surface, the second light-emitting surface is opposite with the second bottom surface, and
Second light-emitting surface be located at the second light guide plate away from the first light guide plate side, and the second incidence surface be connected to the second light-emitting surface with
Between second bottom surface.Secondary light source is configured at by the second incidence surface, and secondary light source is used to send the second light, the second light via
Second incidence surface is transferred in the second light guide plate.Do not have between wherein the first light guide plate and the second light guide plate and be used for deviation light
Optical film.
The light source module of the utility model embodiment allows user can be with through the first light guide plate and the second light guide plate is set
The visible angle of the display of the utility model light source module is applied in switching at any time.When needing narrow viewing angle pattern, by one side
The secondary light source of setting provides light to the second light guide plate, to form narrow viewing angle area source.When needing wide angle mode, by
The first light source that both sides are set provides light to the first light guide plate, to provide wide viewing angle area source.Since the first light source is arranged at
The both sides of first light guide plate, and the first light guide plate has the first micro-structure that multiple first angles are equal to the second angle, so
During wide angle mode, it is not required to open secondary light source, and is not required to set between the first light guide plate and the second light guide plate and is used for deviation light
The optical film of line.
It is cited below particularly preferred real for the above-mentioned and other purposes of the utility model, feature and advantage can be become apparent
Example is applied, and coordinates institute's attached drawing, is described in detail below.
Brief description of the drawings
Fig. 1 is the schematic diagram of the light source module of one embodiment of the utility model.
Fig. 2A is the schematic diagram of the first micro-structure of Fig. 1.
Fig. 2 B are the distribution schematic diagrams of the first micro-structure of the light source module of Fig. 1.
Fig. 3 A are the schematic diagrames of the second micro-structure of Fig. 1.
Fig. 3 B are the distribution schematic diagrams of the second micro-structure of the light source module of Fig. 1.
Fig. 4 is the function block schematic diagram of the light source module of one embodiment of the utility model.
Fig. 5 A are the schematic side views of the light source module of one embodiment of the utility model.
Fig. 5 B are the viewing angle distribution figures of the light source module of one embodiment of the utility model.
Fig. 6 A are the schematic side views of the light source module of one embodiment of the utility model.
Fig. 6 B are the viewing angle distribution figures of the light source module of one embodiment of the utility model.
Fig. 7 is the distribution map of the first micro-structure of the light source module of another embodiment of the utility model.
Fig. 8 is the distribution map of the second micro-structure of the light source module of another embodiment of the utility model.
Embodiment
In relation to addressing other technologies content, feature and effect before the utility model, coordinate following with reference to one of schema
In the detailed description of preferred embodiment, can clearly it present.The direction term being previously mentioned in following embodiments, such as：Upper,
Under, it is left and right, front or rear etc., be only the direction with reference to annexed drawings.Therefore, the direction term used is for illustrating not to use
To limit the utility model.
Fig. 1 is the schematic diagram of the light source module of one embodiment of the utility model.It refer to Fig. 1, the light source die of the present embodiment
Block 10 includes the first light guide plate 11,2 first light source 13a and 13b, the second light guide plate 15 and secondary light source 17, the first light guide plate
11 have the first light-emitting surface 111, the first bottom surface 112,2 first incidence surface 113a, 113b and multiple first micro-structures 115.First
111 and first bottom surface 112 of light-emitting surface is opposite, the first incidence surface 113a be connected to the first light-emitting surface 111 and the first bottom surface 112 it
Between, and the first incidence surface 113b is connected between the first light-emitting surface 111 and the first bottom surface 112, the first incidence surface 113a and 113b
And toward each other.These 115 indents of the first micro-structure are in the first bottom surface 112.
First light source 13a is configured at by the first incidence surface 113a, and the first light source 13b is configured at by the first incidence surface 113b,
First light source 13a and 13b is used to send the first light (being not depicted in figure), these first light are respectively via the first incidence surface
113a and 113b is transferred in the first light guide plate 11.In the present embodiment, the first light source 13a and 13b for example includes multiple respectively
Point light source 131.Point light source 131 is, for example, light-emitting diode, but is not limited.First light source 13a and 13b is for example wrapped more respectively
Circuit board (not shown) is included, to carry point light source 131.In addition, the utility model does not limit the species of the first light source 13a and 13b,
For example, the first light source 13a and 13b can also be substituted for cathode fluorescent tube.
Second light guide plate 15 is configured at the top of the first light-emitting surface 111 of the first light guide plate 11, and the second light guide plate 15 includes
Second light-emitting surface 151, the second bottom surface 152 and the second incidence surface 153.Second light-emitting surface 151 and the second bottom surface 152 are opposite, and
Second light-emitting surface 151 is located at the side away from the first light guide plate 11 of the second light guide plate 15, and the second incidence surface 153 is connected to the
Between two light-emitting surfaces 151 and the second bottom surface 152.
Secondary light source 17 is configured at by the second incidence surface 153, and secondary light source 17 (is not depicted in for sending one second light
On figure), the second light is transferred in the second light guide plate 15 via the second incidence surface 153.In the present embodiment, secondary light source 17
Such as including multiple point light sources 171.Point light source 171 is, for example, light-emitting diode, but is not limited.Secondary light source 17 is for example more
Including circuit board (not shown), to carry point light source 171.In addition, the utility model does not limit the species of secondary light source 17, citing
For, secondary light source 17 can also be substituted for cathode fluorescent tube.
Do not have in the light source module 10 of the present embodiment, between the first light guide plate 11 and the second light guide plate 15 and be used for deviation light
The optical film of line, and the optical film for being previously used for deviation light be, for example, diffusion sheet, prismatic lens or other light can be allowed to pass through
The optical film of deviation can be produced afterwards.In addition, the second incidence surface 153 of the second light guide plate 15 can be parallel to the first light guide plate
11 the first incidence surface 113a and 113b, the utility model are not limited thereto system.
Fig. 2A is the schematic diagram of the first micro-structure 115 of Fig. 1 light source modules 10, wherein the first micro-structure 115 is indent knot
Structure, Fig. 2A for convenience of description, the bottom surface of the first micro-structure 115 for the first above-mentioned bottom surface 112 virtual extension plane, therefore
Illustrated with dotted line.Fig. 1 and Fig. 2A is refer to, above-mentioned every one first micro-structure 115 has the first inclined-plane 1151 and the second inclined-plane
1153, the first inclined-plane 1151 is towards the first incidence surface 113a and is connected between the second inclined-plane 1153 and the first bottom surface 112, the
Two inclined-planes 1153 are towards the first incidence surface 113b and are connected between the first inclined-plane 1151 and the first bottom surface 112.First inclined-plane
1151 and first have the first angle theta 1 between bottom surface 112, have the second folder between the second inclined-plane 1153 and the first bottom surface 112
Angle θ 2, and the first angle theta 1 is equal to the second angle theta 2.First angle theta 1 and the second angle theta 2 be, for example, between 11 degree and 19 degree it
Between, the utility model is not limited thereto system.In addition, the first inclined-plane 1151 and first bottom surface 112 of each first micro-structure 115
Junction has a first side 1152, and the junction of the second inclined-plane 1153 and the first bottom surface 112 has second side 1154.At this
In embodiment, the distance d1 of first side 1152 and second side 1154 be between 30~70 μm, first side 1152 and
The length d2 of second side 1154 is respectively interposed between 20~50 μm, and the utility model is not limited thereto system.In addition, first
Inclined-plane 1151 can be parallel to the first incidence surface 113a and first with the side 1156 being connected on the second inclined-plane 1153 and enter
Smooth surface 113b, the utility model are not limited thereto system.
Fig. 2 B are refer to, Fig. 2 B are the distribution maps of the first micro-structure 115 of the light source module 10 of embodiment illustrated in fig. 1, its
In these first micro-structures 115 be to be uniformly distributed in the first light guide plate 11 as illustration.And in the utility model
In other embodiment, the distribution density of these the first micro-structures 115 can be non-uniform.
In the present embodiment, the second light guide plate 15 can also have multiple second micro-structures 155.Fig. 1 and Fig. 3 A are refer to,
Wherein Fig. 3 A are the schematic diagrames of the second micro-structure 155 of Fig. 1 light source modules 10.Second micro-structure 155 is concave inward structure, in order to just
In explanatory drawin 3A, the bottom surface of the second micro-structure 155 extends plane for the virtual of the second above-mentioned bottom surface 152, therefore is painted with dotted line
Show.Second micro-structure, 155 indent is in the second bottom surface 152, and every one second micro-structure 155 has the 3rd inclined-plane 1551, and the 3rd is oblique
Face 1551 is towards the second incidence surface 153.There is the 3rd angle theta 3, in this implementation between 3rd inclined-plane 1551 and the second bottom surface 152
In example, the 3rd angle theta 3 is, for example, the first angle theta 1 less than the first micro-structure 115.Specifically, the of the second micro-structure 155
Three angle thetas 3 are, for example, that the utility model is not limited thereto system between 2 degree and 3 degree.In addition, each second micro-structure 155
With more the 4th inclined-plane 1553, the 4th inclined-plane 1553 is connected backwards to the second incidence surface 153 and with the 3rd inclined-plane 1551, the 3rd inclined-plane
1551 and second the junction of bottom surface 152 there is the junction of the 3rd side 1552, the 4th inclined-plane 1553 and the second bottom surface 152
With four side 1554.In the present embodiment, the distance d3 of the 3rd side 1552 and four side 1554 is, for example, between 50
Between~90 μm, the length d4 of the 3rd side 1552 and four side 1554 is for example respectively interposed between 20~50 μm, this practicality
It is new to be not limited thereto system.In addition, the 3rd inclined-plane 1551 can be flat with the side 1556 being connected on the 4th inclined-plane 1553
Row is in the second incidence surface 153.
Fig. 3 B are refer to, Fig. 3 B are the distribution maps of the second micro-structure 155 of the light source module 10 of embodiment illustrated in fig. 1, its
In these second micro-structures 155 be to be uniformly distributed in the second light guide plate 15 as illustration.And in the utility model
In other embodiment, the distribution density of these the second micro-structures 155 can be non-uniform.
Referring again to Fig. 1, light source module 10 can more include prismatic lens 19 or other optical films, be configured at the second light guide plate
On 15 the second light-emitting surface 151.Prismatic lens 19 has multiple prism columns 193, and the tip of these prism columns 193 is directed towards second
Light-emitting surface 151.In addition, these prism columns 193 are, for example, to extend along predetermined direction A, wherein predetermined direction A is parallel to second and leads
Second incidence surface 153 of tabula rasa 15, the utility model are not limited thereto system.Wherein prism columns 193 can be provided in prism
On the base material 191 of piece 19.
Referring to Fig. 4, Fig. 4 is the function block schematic diagram of the light source module of one embodiment of the utility model.Light source module
10 can more include control module 12, and control module 12 is electrically connected to first light source 13a, 13b and secondary light source 17.Wherein control
Molding block 12 is used to open first light source 13a, 13b and closes secondary light source 17, and light source module 10 is switched to a wide viewing angle
Pattern.Control module 12 is simultaneously used to close first light source 13a, 13b and opens secondary light source 17, and light source module 10 is switched
To a narrow viewing angle pattern.Wherein, control module 12 can include circuit board assemblies, and circuit board assemblies can include controller and phase
Powered-down road.And it will be discussed in greater detail below the wide angle mode of light source module 10 and the specific function situation of narrow viewing angle pattern.
Fig. 5 A are refer to, Fig. 5 A are schematic side views when light source module 10 shown in Fig. 1 operates on narrow viewing angle pattern.Its
In, first light source 13a, 13b is closed and secondary light source 17 is opened, and secondary light source 17 sends the second light L2, and the second light
Line L2 is transferred in the second light guide plate 15 via the second incidence surface 153, and part the second light L2 can be by the of the second micro-structure 155
Three inclined-planes 1551 reflect, then are emitted to prismatic lens 19 via the second light-emitting surface 151, and the prism columns 193 of prismatic lens 19 can incite somebody to action
The direction of the second incident light L2 is adjusted to be approximately towards top, and the second light L2 is gone out from forward direction above prismatic lens 19
Penetrate.In the present embodiment, the 3rd inclined-plane 1551 of the second micro-structure 155 can pass through the light that secondary light source 17 is launched
After second light guide plate 15 and prismatic lens 19, it can largely be adjusted to be approximately towards the positive light transmitted in top, therefore can
To form narrow viewing angle area source.Wherein, the second light L2 shown in Fig. 5 A be only one for example, the utility model not with this
For limitation.
Fig. 5 B are refer to, Fig. 5 B are viewing angle distribution figures when light source module 10 shown in Fig. 5 A operates on narrow viewing angle pattern, because
This understands that light source module 10 operates on visible angle very little during narrow viewing angle pattern, at this time using the display of light source module 10
It can prevent people at one's side from spying on.
Fig. 6 A are refer to, Fig. 6 A are schematic side views when light source module 10 shown in Fig. 1 operates on wide angle mode.Its
In, first light source 13a, 13b is by unlatching and secondary light source 17 is closed, and the first light source 13a sends the first light L1a and L1a ',
First light source 13b simultaneously sends the first light L1b, and the first light L1a and L1a ' is transferred to first via the first incidence surface 113a and leads
In tabula rasa 11, and the first light L1b is transferred in the first light guide plate 11 via the first incidence surface 113b.First light L1a can quilt
First inclined-plane 1151 of the first micro-structure 115 reflects, then is emitted to the second light guide plate 15, the first light via the first light-emitting surface 111
Line L1a is incident upon prismatic lens 19 by being reentered after the second light guide plate 15, and the prism columns 193 of prismatic lens 19 can be by incident first
The direction of light L1a is adjusted to be approximately towards the positive outgoing in top, wherein the first light L1a is after by the second light guide plate 15
Direction of transfer, which does not have, significantly to be changed.And the first light L1a ' can be anti-by the first inclined-plane 1151 of the first micro-structure 115
Penetrate, then the second light guide plate 15 is emitted to via the first light-emitting surface 111, the first light L1a ' after the second light guide plate 15 by re-shooting
To prismatic lens 19, and the prism columns 193 of prismatic lens 19 then allow the first light L1a ' of incidence to penetrate, without significantly changing its transmission
Direction, so direction of transfer of the first light L1a ' after by the second light guide plate 15 does not have too big change.First light
Line L1b can be reflected by the second inclined-plane 1153 of the first micro-structure 115, then be emitted to the second light guide plate via the first light-emitting surface 111
15, the first light L1b are incident upon prismatic lens 19 by being reentered after the second light guide plate 15, and the prism columns 193 of prismatic lens 19 then allow into
The the first light L1b penetrated is penetrated, and changes its direction of transfer without significantly changing, so the first light L1b is guide-lighting by second
Direction of transfer after plate 15 does not have too big change.In the present embodiment, since the first micro-structure 115 has the first inclined-plane
1151 and second inclined-plane 1153 to reflect the light that first light source 13a, 13b is provided respectively, therefore by first light source 13a, 13b
The light launched can be partly adjusted to substantially after by the first light guide plate 11, the second light guide plate 15 and prismatic lens 19
The positive light L1a for transmitting (angle of emergence is smaller) upward, can partly be adjusted to the larger light L1a ' of the angle of emergence,
L1b, therefore in this embodiment, individually pass through first light source 13a, 13b and there is the first inclined-plane 1151 and the second inclined-plane
1153 the first micro-structure 115, when first angle theta 1 on the first inclined-plane 1151 and bottom surface 112 is equal to the second inclined-plane 1153 and bottom
Second angle theta 2 in face 112, is being not required to open the premise of secondary light source, you can obtain the light that there is larger angle to be emitted
L1a ', L1b, it may have the light L1a of positive outgoing upward, can form wide viewing angle area source, and cause wide viewing angle mould
The emergent ray of formula is evenly distributed.First light L1a, L1a ' wherein shown in Fig. 6 A and L1b is by way of example only, this practicality is new
Type is not limited thereto system.
Fig. 6 B are refer to, Fig. 6 B are viewing angle distribution figures when light source module 10 shown in Fig. 6 A operates on wide angle mode, because
This understands that visible angle when light source module 10 operates on wide angle mode is very wide, at this time using the display of light source module 10
It can be watched from broader angle.
When needing narrow viewing angle pattern, the secondary light source 17 set by one side provides the light source module 10 of the utility model
Light is to the second light guide plate 15, to form narrow viewing angle area source.When needing wide angle mode, by the first light of both sides setting
Source 13a and 13b provide light to the first light guide plate 11, to provide wide viewing angle area source.Since the first light source 13a and 13b is set
In the both sides of the first light guide plate 11, and the first light guide plate 11 has first micro- knot that multiple first angle thetas 1 are equal to the second angle theta 2
Structure 115, and the first angle theta 1 and the second angle theta 2 are, for example, between 11 degree and 19 degree, so in wide angle mode, no
Secondary light source 17 need to be opened, and known wide angle mode can be improved in -40 ° to -20 ° angulars field of view and 20 ° to 40 ° visual angle models
Enclose and be clearly visible the obvious relaxation phenomenon of light distribution, improve user's ornamental quality.First light guide plate 11 and the second light guide plate 15
Between be not required to set for deviation light optical film such as diffusion sheet or prismatic lens, to avoid what is be emitted by the first light guide plate 11
Light is adjusted by prismatic lens 19 after this optical film and concentrates on forward direction and be emitted or concentrate on wide-angle outgoing.
Fig. 7 is refer to, Fig. 7 is the distribution map of the first micro-structure of the light source module of another embodiment of the utility model, this
The light source module of embodiment and the light source module 10 shown in Fig. 1 have the function of similar structure and, the present embodiment with shown in Fig. 1
Embodiment difference is：These distribution densities of the first micro-structure 115 on the first light guide plate 11 ' are guide-lighting from first
The center of first bottom surface 112 of plate 11 ' is dredged towards gradually becoming close to the direction of the first incidence surface 113a and 113b, therefore closer to the
These first micro-structures 115 at one light source 13a or 13b are more sparse, and these first micro-structures 115 are in the first light guide plate 11 '
Middle it is closeer, can allow the first light that the first light source 13a and 13b is sent by these first micro-structures 115 evenly
Reflection.
Fig. 8 is refer to, Fig. 8 is the distribution map of the second micro-structure of the light source module of another embodiment of the utility model, this
The light source module of embodiment and the light source module 10 shown in Fig. 1 have the function of similar structure and, the present embodiment with shown in Fig. 1
Embodiment difference is：These distribution densities of the second micro-structure 155 on the second light guide plate 15 ' are from adjacent to second
153 side of incidence surface gradually becomes close towards away from the direction of the second incidence surface 153, thus at secondary light source 17 these second
Micro-structure 155 is more sparse, and these second micro-structures 155 at secondary light source 17 are closeer, can allow secondary light source 17
The second light sent is by these reflections of the second micro-structure 155 evenly.
In conclusion the light source module of the utility model embodiment allows through the first light guide plate and the second light guide plate is set
User can switch the visible angle of the display using the utility model light source module at any time.When needing narrow viewing angle pattern
When, the secondary light source set by one side provides light to the second light guide plate, to form narrow viewing angle area source.When needing wide viewing angle
During pattern, the first light source set by both sides provides light to the first light guide plate, to provide wide viewing angle area source.Due to first
Light source is arranged at the both sides of the first light guide plate, and the first light guide plate has first micro- knot that multiple first angles are equal to the second angle
Structure, and be not required to set the optical film for deviation light between the first light guide plate and the second light guide plate, so in wide angle mode
When, it is not required to open secondary light source, you can obtain the wide viewing angle area source that emergent ray is evenly distributed.
The above, is only the preferred embodiment of the utility model, it is impossible to limit the utility model with this and implement it
Scope, i.e., every simple equivalent changes and modifications made according to the utility model claims book and description, all
Still belong in the range of the utility model patent covers.In addition, any embodiment or claim of the utility model are not necessary to reach
Whole purpose or advantage or feature disclosed in the utility model.In addition, specification digest and denomination of invention are intended merely to aid in
Patent document retrieval is used, and is not used for limiting the interest field of the utility model.In addition, in this specification or claims
The terms such as " first " that refers to, " second " only to name the title of element (element) or the different embodiments of difference or scope,
And not it is used for the quantitative upper limit of restriction element or lower limit.
Reference numerals list
10：Light source module
11、11’：First light guide plate
111：First light-emitting surface
112：First bottom surface
113a、113b：First incidence surface
115：First micro-structure
1151：First inclined-plane
1152：First side
1153：Second inclined-plane
1154：Second side
1156：Side
12：Control module
13a、13b：First light source
131：Point light source
15、15’：Second light guide plate
151：Second light-emitting surface
152：Second bottom surface
153：Second incidence surface
155：Second micro-structure
1551：3rd inclined-plane
1552：3rd side
1553：4th inclined-plane
1554：Four side
1556：Side
17：Secondary light source
171：Point light source
19：Prismatic lens
191：Base material
193：Prism columns
θ1：First angle
θ2：Second angle
θ3：3rd angle
θ4：4th angle
d1：Distance
d2：Length
d3：Distance
d4：Length
A：Predetermined direction
L1a、L1a’、L1b：First light
L2：Second light.
Claims (15)
1. a kind of light source module, it is characterised in that including the first light guide plate, 2 first light sources, the second light guide plate and the second light
Source,
First light guide plate has one first light-emitting surface, one first bottom surface, 2 first incidence surfaces and multiple first micro-structures,
First light-emitting surface is opposite with first bottom surface, and each first incidence surface is connected to first light-emitting surface and described the
Between one bottom surface, 2 first incidence surface is relative to each other, the multiple first micro-structure indent in first bottom surface, wherein
Each first micro-structure has one first inclined-plane and one second inclined-plane, first inclined-plane be connected to second inclined-plane with
Between first bottom surface, second inclined-plane is connected between first inclined-plane and first bottom surface, and described first is oblique
There is one first angle between face and first bottom surface, there is one second folder between second inclined-plane and first bottom surface
Angle, and first angle is equal to second angle；
2 first light source is respectively arranged at by 2 first incidence surface, and 2 first light source is used to send the first light
Line, first light are transferred in first light guide plate via 2 first incidence surface；
Second light guide plate is configured above first light-emitting surface of first light guide plate, and the second light guide plate bag
One second light-emitting surface, one second bottom surface and one second incidence surface are included, second light-emitting surface is opposite with second bottom surface, and
Second light-emitting surface is located at the side away from first light guide plate of second light guide plate, and second incidence surface connects
It is connected between second light-emitting surface and second bottom surface；
The secondary light source is configured at by second incidence surface, and the secondary light source is used to send one second light, and described the
Two light are transferred in second light guide plate via second incidence surface；
Do not have the optical film for deviation light between wherein described first light guide plate and second light guide plate.
2. light source module as claimed in claim 1, it is characterised in that first angle and second angle are between 11 degree
Between 19 degree.
3. light source module as claimed in claim 1, it is characterised in that the distribution density of the multiple first micro-structure is from described
The center of first bottom surface is towards close to the direction of 2 first incidence surface, gradually change is dredged.
4. light source module as claimed in claim 1, it is characterised in that first inclined-plane of each first micro-structure and institute
Stating the junction of the first bottom surface has a first side, and the junction on second inclined-plane and first bottom surface has one second
The distance of side, the first side and the second side is between 30~70 μm, the first side and described second
The length of side is respectively interposed between 20~50 μm.
5. light source module as claimed in claim 1, it is characterised in that first inclined-plane is connected with second inclined-plane
Side parallel to 2 first incidence surface.
6. light source module as claimed in claim 1, it is characterised in that second light guide plate also has multiple second micro- knots
Structure, indent is in second bottom surface, and each second micro-structure has one the 3rd inclined-plane, towards second incidence surface,
There is one the 3rd angle, the 3rd angle is less than first angle between 3rd inclined-plane and second bottom surface.
7. light source module as claimed in claim 6, it is characterised in that the 3rd angle is between 2 degree and 3 degree.
8. light source module as claimed in claim 6, it is characterised in that the distribution density of the multiple second micro-structure is from neighbouring
The second incidence surface side gradually becomes close towards the direction away from second incidence surface.
9. light source module as claimed in claim 6, it is characterised in that each second micro-structure also has one the 4th inclined-plane,
It is connected with the 3rd inclined-plane, the junction of the 3rd inclined-plane and second bottom surface has one the 3rd side, and the described 4th
The junction of inclined-plane and second bottom surface has a four side, the distance of the 3rd side and the four side between
Between 50~90 μm, the length of the 3rd side and the four side is respectively interposed between 20~50 μm.
10. light source module as claimed in claim 6, it is characterised in that each second micro-structure also has one the 4th inclined-plane,
It is connected with the 3rd inclined-plane, the 3rd inclined-plane enters light with the side being connected on the 4th inclined-plane parallel to described second
Face.
11. light source module as claimed in claim 1, it is characterised in that further include a prismatic lens, it is guide-lighting to be configured at described second
On second light-emitting surface of plate, the prismatic lens has multiple prism columns, and the tip of the multiple prism columns is described in
Second light-emitting surface.
12. light source module as claimed in claim 11, it is characterised in that the multiple prism columns extend along a predetermined direction,
Second incidence surface of the predetermined direction parallel to second light guide plate.
13. light source module as claimed in claim 1, it is characterised in that the light source module further includes a control module, electrically
2 first light source and the secondary light source are connected to, wherein：
The control module is used to open 2 first light source and close the secondary light source, and the light source module is switched
To a wide angle mode；
The control module is used to close 2 first light source and open the secondary light source, and the light source module is switched
To a narrow viewing angle pattern.
14. light source module as claimed in claim 1, it is characterised in that the optical film for deviation light is diffusion sheet
Or prismatic lens.
15. light source module as claimed in claim 1, it is characterised in that second incidence surface enters parallel to described 2 first
Smooth surface.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721269008.3U CN207301564U (en) | 2017-09-29 | 2017-09-29 | Light source module |
| TW106215351U TWM556333U (en) | 2017-09-29 | 2017-10-18 | Light source module |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721269008.3U CN207301564U (en) | 2017-09-29 | 2017-09-29 | Light source module |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207301564U true CN207301564U (en) | 2018-05-01 |
Family
ID=62191493
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721269008.3U Active CN207301564U (en) | 2017-09-29 | 2017-09-29 | Light source module |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN207301564U (en) |
| TW (1) | TWM556333U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966574A (en) * | 2019-11-28 | 2020-04-07 | 奥普家居股份有限公司 | Directional lighting system and lighting system with coexistence of directional lighting and floodlighting |
| CN111176016A (en) * | 2020-01-07 | 2020-05-19 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN113359349A (en) * | 2021-06-02 | 2021-09-07 | 深圳市华星光电半导体显示技术有限公司 | Backlight module and display device |
| WO2022222083A1 (en) * | 2021-04-21 | 2022-10-27 | 京东方科技集团股份有限公司 | Backlighting module and display apparatus |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| TWI826042B (en) * | 2022-10-12 | 2023-12-11 | 達運精密工業股份有限公司 | Switchable backlight module |
| TWI815733B (en) | 2022-11-18 | 2023-09-11 | 達運精密工業股份有限公司 | Backlight module |
-
2017
- 2017-09-29 CN CN201721269008.3U patent/CN207301564U/en active Active
- 2017-10-18 TW TW106215351U patent/TWM556333U/en unknown
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110966574A (en) * | 2019-11-28 | 2020-04-07 | 奥普家居股份有限公司 | Directional lighting system and lighting system with coexistence of directional lighting and floodlighting |
| CN111176016A (en) * | 2020-01-07 | 2020-05-19 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN111176016B (en) * | 2020-01-07 | 2022-10-18 | 京东方科技集团股份有限公司 | Backlight module and display device |
| WO2022222083A1 (en) * | 2021-04-21 | 2022-10-27 | 京东方科技集团股份有限公司 | Backlighting module and display apparatus |
| CN115720643A (en) * | 2021-04-21 | 2023-02-28 | 京东方科技集团股份有限公司 | Backlight module and display device |
| CN113359349A (en) * | 2021-06-02 | 2021-09-07 | 深圳市华星光电半导体显示技术有限公司 | Backlight module and display device |
Also Published As
| Publication number | Publication date |
|---|---|
| TWM556333U (en) | 2018-03-01 |
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Effective date of registration: 20190402 Address after: Taiwan County, Hsinchu, China Hukou Feng Village Road, No. 5 Culture Patentee after: Taiwan young Co.,Ltd. Address before: Hsinchu Science Park, Taiwan, China Patentee before: Coretronic Corp. |
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Effective date of registration: 20231222 Address after: Hsinchu Science Park, Taiwan, China, No. 11 Li Li Road, Hsinchu Patentee after: Coretronic Corp. Address before: Taiwan County, Hsinchu, China Hukou Feng Village Road, No. 5 Culture Patentee before: Taiwan young Co.,Ltd. |