CN109709713A - A kind of backlight module, display module and electronic equipment - Google Patents
A kind of backlight module, display module and electronic equipment Download PDFInfo
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- CN109709713A CN109709713A CN201910041776.0A CN201910041776A CN109709713A CN 109709713 A CN109709713 A CN 109709713A CN 201910041776 A CN201910041776 A CN 201910041776A CN 109709713 A CN109709713 A CN 109709713A
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Abstract
The application is suitable for optics and electronic technology field, provides a kind of backlight module comprising light guide plate, reflector plate, optical film layer group, back light, the first supplementary lighting sources, the second supplementary lighting sources, sensing light emitting mould group and sensing identification mould group.The light guide plate includes light-emitting surface and the bottom surface opposite with light-emitting surface.The reflector plate is arranged on the bottom surface of light guide plate.The optical film layer group is arranged on the light-emitting surface of light guide plate.The backlight module offers respectively at different locations through the light guide plate, the first through hole of reflector plate and optical film layer group and the second through-hole.The back light is arranged on the wherein one side of light guide plate.First supplementary lighting sources and sensing light emitting mould group share the light passing path through backlight module that first through hole is constituted, and second supplementary lighting sources and sensing identification mould group share the light passing path through backlight module that the second through-hole is constituted.
Description
Technical field
The application belongs to optical technical field more particularly to a kind of backlight module, display module and electronic equipment.
Background technique
Currently, for the electronic equipment with display function, consumer is intended to pursue increasing screen accounting, to expect
The experience ultimate attainment visual enjoyment that screen is shown comprehensively.However, existing electronic equipment is more in the setting of display surface side toward contact needs
A different functional module group occupies display area to realize the other function in addition to display.In order to improve screen accounting, need
The functional module group is arranged in inside screen, and there do not have extra space that can accommodate in current display module structure to be described
Functional module group.
Summary of the invention
The application provides a kind of backlight module, display module and electronic equipment to solve the above technical problems.
The application embodiment provides a kind of backlight module comprising light guide plate, reflector plate, optical film layer group, backlight light
Source, the first supplementary lighting sources, the second supplementary lighting sources, sensing light emitting mould group and sensing identification mould group.The light guide plate includes into light
Face, light-emitting surface and the bottom surface opposite with light-emitting surface.The back light is arranged in the incidence surface side.The reflector plate setting
On the bottom surface of light guide plate.The optical film layer group is arranged on the light-emitting surface of light guide plate.The backlight module is in different location
Place is offered respectively through the light guide plate, the first through hole of reflector plate and optical film layer group and the second through-hole.The backlight light
Source is arranged on the wherein one side of light guide plate.First supplementary lighting sources and sensing light emitting mould group share first through hole and constitute
The light passing path through backlight module, second supplementary lighting sources and sensing identification mould group share the second through-hole constitute run through
The light passing path of backlight module.
In some embodiments, the via area of the through-hole opened up on the reflector plate is equal to or less than the leaded light
The via area of the through-hole opened up on plate.
In some embodiments, the pore diameter range of the through-hole is 1 to 8 millimeter.
In some embodiments, the size of opened up through-hole is maximum on the light guide plate.
In some embodiments, the via area of opened up through-hole is greater than in the optical film layer group on the light guide plate
The via area of the through-hole opened up.
In some embodiments, the through-hole that is opened up on the light guide plate and the through-hole opened up in the optical film layer group it
Between aperture difference range be 100 to 400 microns.
In some embodiments, the optical film layer group includes diffusion sheet and brightening piece, and the diffusion sheet setting is being led
On the light-emitting surface of tabula rasa, the light emission side of diffusion sheet is arranged in the brightening piece.
In some embodiments, first supplementary lighting sources are for issuing light filling light to first through hole, to supplement the
The backlight of one through-hole corresponding region lacks, and second supplementary lighting sources are for issuing light filling light to the second through-hole, to supplement the
The backlight of two through-hole corresponding regions lacks, and the sensing light emitting mould group is used to emit light beam to backlight module by first through hole
Outside, the sensing identification mould group are used to receive by the second through-hole by the reflected light beam of objects outside, thus according to connecing
The light beam received realizes the identification function to the objects outside.
In some embodiments, the backlight module further includes the first optical module of corresponding first through hole setting and right
The second optical module for answering the second through-hole to be arranged, first supplementary lighting sources and sensing light emitting mould group pass through the first optical module
The light passing path that first through hole is constituted is shared, second supplementary lighting sources and sensing identification mould group are shared by the second optical module
The light passing path that second through-hole is constituted, wherein the first optical module and the second optical module all have semi-transparent semi-reflecting function.
In some embodiments, the sensing light emitting mould group is arranged below first optical module, and face the
The setting of one through-hole, first supplementary lighting sources setting is in first optical module side, positioned at the peripheral region of first through hole,
For first optical module to visible reflectance to infrared transmission, the sensing light emitting mould group passes through the first optics group
Part emits infrared light to the first through hole, and the first supplementary lighting sources transmitting visible light is to first optical module, through institute
The first through hole is incident to after stating the reflection of the first optical module；Or the first optics group is arranged in first supplementary lighting sources
Below part, and face first through hole is arranged, and the sensing light emitting mould group setting is in first optical module side, positioned at the
The peripheral region of one through-hole, for first optical module to infrared light reflection to visible transmission, first supplementary lighting sources are logical
It crosses first optical module and emits visible light to the first through hole, the sensing light emitting mould group transmitting infrared light is to described
First optical module is incident to the first through hole after the reflection of first optical module.
In some embodiments, sensing light identification mould group is arranged below second optical module, and face the
The setting of two through-holes, second supplementary lighting sources setting is in second optical module side, positioned at the peripheral region of the second through-hole,
Second optical module to visible reflectance to infrared transmission, the sensing light identification mould group by second through-hole and
Second optical module is received by the reflected infrared light of objects outside, and second supplementary lighting sources emit visible light to institute
The second optical module is stated, second through-hole is incident to after the reflection of second optical module；Or the second light filling light
Source is arranged below second optical module, and the second through-hole of face is arranged, and the sensing light identification mould group is arranged described the
Two optical module sides, positioned at the peripheral region of the second through-hole, second optical module is saturating to visible light to infrared light reflection
It penetrates, second supplementary lighting sources emit visible light to second through-hole, second optics by second optical module
Component is reflected by the reflected infrared light of objects outside, and the sensing light identification mould group is received by the second optical module
Reflected infrared light.
In some embodiments, light-blocking film layer is coated on the medial surface of the through-hole opened up on the light guide plate.
The application embodiment provides a kind of display module comprising liquid crystal display panel and above embodiment are provided
Backlight module.
The application embodiment provides a kind of electronic equipment comprising backlight module described in any one of above-mentioned or extremely
The display module that a few above embodiment provides.
Backlight module provided by the application embodiment, display module and electronic equipment are by opening up through backlight module
Through-hole functional module group is set, and corresponding through-hole setting supplementary lighting sources supplement backlight, so as to not influence screen complete
The functional module group that panel front was originally arranged in is hidden in below screen under the premise of whole display, further increases screen accounting,
Realize really screen display comprehensively.
The additional aspect and advantage of the application embodiment will be set forth in part in the description, partially will be from following
Become obvious in description, or is recognized by the practice of the application embodiment.
Detailed description of the invention
Fig. 1 is the structural schematic diagram for the backlight module that the application first embodiment provides.
Fig. 2 is the structural schematic diagram for the backlight module that the application second embodiment provides.
Fig. 3 is the structural schematic diagram for the backlight module that the application third embodiment provides.
Fig. 4 is the structural schematic diagram for the backlight module that the 4th embodiment of the application provides.
Fig. 5 is the structural schematic diagram for the backlight module that the 5th embodiment of the application provides.
Fig. 6 is the structural schematic diagram for the backlight module that the application sixth embodiment provides.
Fig. 7 is the structural schematic diagram for the backlight module that the 7th embodiment of the application provides.
Fig. 8 is the structural schematic diagram for the backlight module that the 8th embodiment of the application provides.
Fig. 9 is the structural schematic diagram for the backlight module that the 9th embodiment of the application provides.
Figure 10 is the structural schematic diagram for the display module that the tenth embodiment of the application provides.
Figure 11 is the structural schematic diagram for the electronic equipment that the 11st embodiment of the application provides.
Specific embodiment
Presently filed embodiment is described below in detail, the example of the embodiment is shown in the accompanying drawings, wherein from beginning
Same or similar element or element with the same or similar functions are indicated to same or similar label eventually.Below by ginseng
The embodiment for examining attached drawing description is exemplary, and is only used for explaining the application, and should not be understood as the limitation to the application.?
In the description of the present application, it is to be understood that term " first ", " second " are only used for describing, and should not be understood as instruction or dark
Show relative importance or implicitly indicates the quantity of indicated technical characteristic or put in order.Define as a result, " first ",
The technical characteristic of " second " can explicitly or implicitly include one or more technical characteristic.In retouching for the application
In stating, the meaning of " plurality " is two or more, unless otherwise specifically defined.
In the description of the present application, it should be noted that unless otherwise specific regulation or limit, term " installation ", " phase
Even ", " connection " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integration connection；It can
To be mechanical connection, it is also possible to be electrically connected or is in communication with each other；It can be directly connected, the indirect phase of intermediary can also be passed through
Even, the connection inside two elements or the interaction relationship between two elements be can be.For the ordinary skill of this field
For personnel, the concrete meaning of above-mentioned term in this application can be understood as the case may be.
Following disclosure provides many different embodiments or example is used to realize the different structure of the application.In order to
Simplify disclosure herein, hereafter only to the component of specific examples and being set for describing.Certainly, they are merely examples, and
And purpose does not lie in limitation the application.In addition, the application can reuse reference number and/or reference word in different examples
Mother, this reuse are itself not indicate the various embodiments discussed to simplify and clearly state the application
And/or the particular kind of relationship between setting.In addition, the application in the following description provided by various specific techniques and material only
For the example for realizing technical scheme, but those of ordinary skill in the art should be aware that the technical solution of the application
It can be realized by other techniques for not describing hereafter and/or other materials.
Further, described feature, structure can be incorporated in one or more embodiment party in any suitable manner
In formula.In the following description, many details are provided so as to fully understand presently filed embodiment.However, this
Field technical staff will be appreciated that even if without one or more in the specific detail, or using other structures, group
Member etc. can also practice the technical solution of the application.In other cases, it is not shown in detail or describes known features or operation
To avoid the emphasis of fuzzy the application.
As shown in Figure 1, the application first embodiment provides a kind of backlight module 1, for being correspondingly arranged one under screen
A or multiple functional module groups improve screen accounting to increase display area under the premise of not influencing original function.The backlight module
1 includes back light 10, light guide plate 12, reflector plate 14 and optical film layer group 16.The light guide plate 12 include light-emitting surface 120, with
The opposite bottom surface 122 of light-emitting surface 120 and incidence surface 124.The corresponding incidence surface 124 of the back light 10 is arranged.It is described anti-
Piece 14 is penetrated to be arranged on the bottom surface 122 of light guide plate 12.The optical film layer group 16 is arranged on the light-emitting surface 120 of light guide plate 12.
The through-hole 18 through the light guide plate 12, reflector plate 14 and optical film layer group 16 is offered on the backlight module 1.The leaded light
The through-hole 18 opened up respectively in plate 12, reflector plate 14 and optical film layer group 16 is mutually aligned to collectively form and run through entire backlight mould
The light passing path of group 1.Each layer through-hole 18, which is mutually aligned, can be the center of each layer through-hole 18 and is mutually aligned, can also be with
Be each 18 center of layer through-hole not close alignment and there is deviation to a certain degree, but each layer through-hole 18 is still able to maintain and is mutually communicated.Its
In, the size of opened up through-hole 18 is maximum on the light guide plate 12.The size of the through-hole 18 can by the area of through-hole 18 or
The aperture of through-hole 18 is measured.Such as: 18 size of through-hole on the reflector plate 14 is equal to or less than on light guide plate 12
18 size of through-hole, i other words 18 area of through-hole on reflector plate 14 is equal to or less than 18 area of through-hole or anti-on light guide plate 12
18 aperture of through-hole on piece 14 is penetrated equal to or less than 18 aperture of through-hole on light guide plate 12.
It is understood that the application in the de-scription the positional relationship of each component when with the backlight direction of the launch be it is upper, therewith
It is opposite be under.Such as: it is reference substance with light guide plate 12, the reflector plate 14 is arranged in light guide plate 12 and backlight direction of the launch phase
Then think that the reflector plate 14 is located at the lower section of light guide plate 12 in anti-side.The optical film layer group 16 is arranged on 12 edge of light guide plate
Then think that the optical film layer group 16 is located at the top of light guide plate 12 in the side of the backlight direction of the launch.
The light that the back light 10 issues enters light guide plate 12 from the incidence surface 124.The light guide plate 12 is used for
It will be oriented to light-emitting surface 120 from incident backlight light, and is projected from light-emitting surface 120.
122 side of bottom surface of light guide plate 12 is arranged in the reflector plate 14.The reflector plate 12 is by highly reflective material system
At for backlight light to be reflected back light-emitting surface 120 to improve the utilization rate of backlight light.Also correspondence is opened on the reflector plate 14
Equipped with the through-hole 18.Through-hole 18 on the reflector plate 14 can have identical size with through-hole 18 on light guide plate 12, can also
With 18 size of through-hole being less than on light guide plate 18.
In the present embodiment, the reflector plate 14 is the discrete parts independently of light guide plate 12.It is understood that
In other embodiments, the reflector plate 14, which can also be replaced by, is for example formed in 12 bottom surface 122 of light guide plate by coating process
On the film layer structure with high emissivity.
The optical film layer group 16 includes but is not limited to diffusion sheet 160 and brightening piece 162.The setting of diffusion sheet 160 exists
On the light-emitting surface 120 of light guide plate 12, the light for light guide plate 12 to be emitted is diffused to widen visual angle and hidden formation
Pattern on light guide plate 12.The brightening piece 162 can be but be not limited to one or more prismatic lens.The brightening piece 162
The light emission side of diffusion sheet 160 is set, for polymerizeing backlight light within a certain angle to improve backlight illumination.The diffusion sheet
160 and brightening piece 162 on the through-hole 18 that opens up respectively all have identical size, i.e., the entire optical film layer group 16 offers
Through the through-hole 18 of the uniform sizes of itself.The through-hole 18 opened up on the light guide plate 12 below diffusion sheet 160, which is arranged in, to be had
Maximum 18 area of through-hole, 18 periphery of through-hole on the light guide plate 12 is relative to 18 periphery of through-hole on diffusion sheet 160 along logical
18 center of hole extends to the outside a pre-set dimension D, to form a circle step structure, the light guide plate 12 along 18 periphery of through-hole
On through-hole 18 in expose the lower surface 1600 of a circle diffusion sheet 160 and form the step surface of the step structure.
The pore diameter range of the through-hole 18 opened up in the light guide plate 12, reflector plate 14 and optical film layer group 16 is 1 to 8 milli
Rice (Milimeter, mm).The through-hole 18 that is opened up on the light guide plate 12 and the through-hole 18 opened up in the optical film layer group 16 it
Between aperture difference range be 100 to 400 microns (Micrometer, μm), i.e., 18 periphery of through-hole on above-mentioned light guide plate 12 relative to
18 periphery of through-hole on diffusion sheet 160 is 100 to 400 microns along the abducent pre-set dimension D range in 12 center of through-hole
(Micrometer,μm)。
The corresponding through-hole 18 opened up can have arbitrarily in the light guide plate 12, reflector plate 14 and optical film layer group 16
Shape, such as can be circle, rectangle, oblong or other irregular shapes etc., it is not particularly limited herein.It is described logical
Hole 18 can be provided with any position of backlight module 1, such as center or the edge that can be provided with backlight module 1 etc.,
This is not particularly limited.In the present embodiment, the shape of the through-hole 18 is circle.
As shown in Fig. 2, the application second embodiment provides a kind of backlight module 2, structure and first embodiment
Backlight module 1 it is essentially identical, the main distinction is to be provided with screening at 28 medial surface 226 of through-hole opened up on the light guide plate 22
Light component 25.The light-blocking member 25 is used to shelter from the backlight light in light guide plate 22, to avoid allowing it to enter 28 institute of through-hole
The light passing path of composition.In the present embodiment, the light-blocking member 25 is to be plated in the through-hole 28 opened up on the light guide plate 22
Light-blocking film layer on medial surface 226.The light-blocking film layer 25 is made of light-proof material or highly reflective material, for preventing
The backlight light propagated in light guide plate 22 is shown and 28 shape pair of through-hole by the leakage of 22 through-hole of light guide plate, 28 medial surface 226
The aperture answered.
As shown in figure 3, the application third embodiment provides a kind of backlight module 3, structure and first embodiment
Backlight module 1 it is essentially identical, the main distinction is to further include a framework 37.The material of the framework 37 can for plastic cement or
Metal is not particularly limited herein.The global shape of the framework 37 and other each layer structure phases of size and backlight module 3
Together.Also corresponding through-hole 38 is offered in the framework 37.The center of through-hole 38 in the framework 37 and the light guide plate 32,
The center of the through-hole 38 respectively opened up on reflector plate 34, optical film layer group 36 is mutually aligned.Through-hole 38 in the framework 37
Size is greater than 38 size of through-hole in the optical film layer group 36 and leads to less than what is opened up on the light guide plate 32 and reflecting plate 34
38 size of hole.38 periphery of through-hole of the framework 37 extends a circle barricade 370 straight up.The outside shape of the barricade 370
At there is light shield layer B, the light-blocking member 25 as the light guide plate 32.The height of the barricade 370 is substantially equal to the light guide plate
The sum of 32 and the thickness of both reflector plates 34.The framework 37 is assembled in the lower section of reflector plate 34.The barricade 370 protrudes into leaded light
In the through-hole 38 of plate 32 and reflector plate 34.The barricade 370 is provided with a circle bullet far from 3700 periphery of top of 37 main body of framework
Property sealing ring 3702.When the framework 37 is assembled on the reflector plate 34, the barricade 370 protrudes into light guide plate 32 and reflection
In the through-hole 38 of piece 34, the elastic seal ring 3702 is against at the lower surface 3600 of 360 through-hole of diffusion sheet, 38 periphery and prevents from leading
Backlight light in tabula rasa 32 leaks out.
In some embodiments, the elastic seal ring 3702 is also that can be omitted.
It is understood that in other embodiments, the framework 370 be made of material with high reflectivity or
The inner surface of the framework 370 for example forms the film layer structure with high emissivity by coating process, so as to substitute institute
Reflector plate 34 is stated directly to combine with light guide plate 32.At this point, the height of the barricade 370 is the thickness of light guide plate 34.
As shown in figure 4, the 4th embodiment of the application provides a kind of backlight module 4, structure and third embodiment
Backlight module 3 it is essentially identical, the main distinction be on the diffusion sheet 460 lower surface 4600 adjacent with light guide plate 42 along
The periphery of the through-hole 48 of diffusion sheet 460 is formed with a circle light-shielding film layer 45 to substitute the top of barricade 370 described in third embodiment
The elastic seal ring 3702 at end 3700 is used as light-blocking member 45.Light guide plate is being protruded on 470 top 4700 of barricade of the framework 47
42 and/or reflector plate 44 in through-hole 48 after be bonded with the light-shielding film layer 45 to prevent the backlight light in light guide plate 42 from leaking
Out.
As shown in figure 5, the 5th embodiment of the application provides a kind of backlight module 5, structure and first embodiment
Backlight module 1 it is essentially identical, the main distinction is to further include at least one supplementary lighting sources 53.The corresponding institute of the supplementary lighting sources 53
The light passing path setting that perforative through-hole 58 is constituted on backlight module 5 is stated, to supplement the backlight missing of 58 corresponding region of through-hole,
So that 58 corresponding region of through-hole also can normally be shown, comprehensive screen display truly is realized.
The lower section of the reflector plate 54 is arranged in emit light filling light to the through-hole 58 in the supplementary lighting sources 53, so that
The light filling light is consistent with the backlight radiation direction being emitted from the light-emitting surface 520 of the light guide plate 52.Because of the light guide plate 52
On the size of through-hole 58 that opens up it is maximum and expose the lower surface 5600 that a circle is located at the diffusion sheet 560 above light guide plate so that
The light filling light that the supplementary lighting sources 53 are issued can shine directly into the portion of the diffusion sheet 56 exposed in 52 through-hole 58 of light guide plate
Divide lower surface 5600.
Because the light filling light is issued from backlight light by different light sources, respective brightness can have differences show
Show and is formed with apparent zone boundary in effect.By the way that the through-hole 58 with larger size is arranged on light guide plate 52, thus
Diffusion sheet 56 exposes the regional luminance of 5600 face of lower surface of light guide plate 52 through-hole 58 to 58 face of through-hole of diffusion sheet 560
Regional luminance is the transitional region gradually changed, eliminates above-mentioned apparent zone boundary.
The number through through-hole 58 opened up on the backlight module 5 can for one, it is two or more, do not do have herein
Body limitation, such as but depending on not limiting to the quantity of the functional module group (not shown) that can be set as needed under screen.The backlight
It is correspondingly arranged at least one supplementary lighting sources 53 such as, but not limited at each through-hole 58 that mould group 5 is opened up to supplement
Backlight.In the present embodiment, the backlight module 5 offers two through-holes 58 through itself, respectively first through hole 580
With the second through-hole 582.Accordingly, the backlight module 5 includes that the first supplementary lighting sources 530 and the second supplementary lighting sources 532 are right respectively
The first through hole 580 and the second through-hole 582 carry out light filling.
It is understood that the light filling light that the supplementary lighting sources 53 are issued can be directly entered through backlight module 5
Through-hole 58, optical device 57 can also be passed through, such as: prism or optical film, secondary light guide plate with semi-transparent semi-reflecting characteristic
Deng entering back into the through-hole 58 through backlight module 5 later.
Supplementary lighting sources are set in certain change embodiments, such as below a through-hole 58, another 58 lower section of through-hole
It is also feasible that functional module group, which is arranged,.For another example the transmitting module of functional module group can also be set below a through-hole 58, another
The receiving module of lower section setting functional module group of through-hole 58 etc. is also possible.Certainly, function can also be set below a through-hole 58
The transmitting module and supplementary lighting sources of energy mould group, the receiving module of the lower section setting functional module group of another through-hole 58.
As shown in fig. 6, the application sixth embodiment provides a kind of backlight module 6, structure and the 5th embodiment
Backlight module 5 it is essentially identical, the main distinction is that the backlight module 6 further includes corresponding through the described logical of backlight module 6
The functional module group 69 that hole 68 is arranged.The functional module group 69 realizes corresponding function by the light passing path that the through-hole 69 is constituted
Energy.The functional module group 69 includes but is not limited to fingerprint sensing light emitting mould group, three-dimensional sensing light emitting mould group, fingerprint recognition core
Piece mould group, three-dimensional sensing identification mould group, color camera mould group, range sensor, proximity sensor, ambient light sensor etc..Institute
Stating functional module group 69 can be set in the underface of corresponding through-hole 68, also can be set and is corresponding to the side of through-hole 68 without face
The through-hole 68.The functional module group 69 shares running through for the corresponding composition of through-hole 68 with the supplementary lighting sources 63 by optical device
The light passing path of the backlight module 6.The functional module group 69 emits or receives light beam by the corresponding through-hole 68 come real
Existing corresponding function.Such as: if the functional module group 69 is that fingerprint sensing light emitting mould group or three-dimensional sense light emitting mould group,
It issues to pass through after backlight module 6 penetrates liquid crystal display panel (not shown) again for the light beam of sensing by the through-hole 68 and send out
It is incident upon in objects outside and is sensed.If the functional module group 69 be fingerprint recognition chip module, three-dimensional sensing identification mould group or
Color camera mould group, then the reflected light beam of objects outside passes through corresponding through-hole 68 across backlight module 1 by the function mould
Group 69 receives, and then forms image and can be used for fingerprint recognition, face's three-dimensional identification, three-dimensional modeling, take pictures, video etc..The light
Beam can be visible light or non-visible light, such as: infrared or near-infrared etc..In addition, the functional module group 69 can also be used for sensing
The distance of objects outside, or sensing objects outside close to whether or the intensity of sense ambient light line etc..
In the present embodiment, the first through hole 680 and the second through-hole 682 through itself are opened up on the backlight module 6,
The backlight module 6 includes three-dimensional sensing the light emitting mould group 690,630 and of the first supplementary lighting sources that corresponding first through hole 680 is arranged
First optical module 571 and the three-dimensional sensing identification mould group 692 of corresponding second through-hole 682 setting, the second supplementary lighting sources 632 and
Second optical module 572.The three-dimensional sensing light emitting mould group 690 and the first supplementary lighting sources 630 pass through the first optical module 571
Share the light passing path through backlight module 6 that first through hole 680 is constituted.The three-dimensional sensing identification mould group 692 and second
Supplementary lighting sources share the light passing path through backlight module 6 that the second through-hole 682 is constituted by the second optical module 572.
The position of face first through hole 680 below backlight module 6 is arranged in first supplementary lighting sources 630, for issuing
Visible light supplements the backlight of 680 corresponding region of first through hole.The three-dimensional sensing light emitting mould group 690 is arranged in first through hole
680 form preset sensing patterns progress close to one side of 64 side of reflector plate, for emitting near infrared light to objects outside
Sensing.First optical module 571 has semi-transparent semi-reflecting function, and in the present embodiment, first optical module 571 is right
Visible transmission reflects near infrared light.The three-dimensional sensing light emitting mould group 690 issues near-infrared light beam through the first optics group
Part 571 enters first through hole 680 after reflecting and projects.The light filling light that first supplementary lighting sources 630 issue penetrates the first optics
Component 571 enters first through hole 680 to supplement backlight.
The position of the second through-hole of face 682 below backlight module 6 is arranged in second supplementary lighting sources 632, for issuing
Visible light supplements the backlight of 682 corresponding region of the second through-hole.The three-dimensional sensing identification mould group 692 is arranged in the second through-hole
682 close to one side of 64 side of reflector plate, for receiving in objects outside reflected light beam to form the objects outside
On sensing patterns image.Second optical module 572 has semi-transparent semi-reflecting function, in the present embodiment, described the
Two optical modules 572 are reflected to visible transmission, near infrared light.The reflected light beam of objects outside is logical via second
Hole 682 is received through the reflection of the second optical module 572 by the three-dimensional sensing identification mould group 692 after passing through backlight module 6.Described
The light filling light that two supplementary lighting sources 632 issue supplements backlight by entering the second through-hole 682 after the transmission of the second optical module 572.
Ground is changed, in some embodiments, first optical module 571 or/and the second optical module 572 are for example
It can also be to infrared transmission, to visible reflectance.Correspondingly, first supplementary lighting sources 630 and the three-dimensional sensing light hair
The position for penetrating mould group 690 is exchanged, or/and, the position of second supplementary lighting sources 632 and the three-dimensional sensing identification mould group 692
It exchanges.Ground is changed again, and the number of the through-hole 68 can also be one, such as only include first through hole 680, omit the second through-hole
682.Correspondingly, through-hole 68 is arranged in close to one side of 64 side of reflector plate, the three-dimensional sensing in first supplementary lighting sources 630
Light emitting mould group 690 and the three-dimensional sensing identification mould group 692 are correspondingly arranged at the lower section of the first optical module 571, and described the
One optical module 571 to visible reflectance, to transmission of near infra red light.Certainly, various other technical idea institutes based on the application
The change embodiment that can be made should all fall into the protection scope of the application.
As shown in fig. 7, the 7th embodiment of the application provides a kind of backlight module 7, structure and sixth embodiment
Backlight module 6 it is essentially identical, the main distinction be the back light 70 brightness and at least one described supplementary lighting sources 73
Brightness can independently adjust.
The backlight module 7 includes the backlight drive circuit 700 and backlight controller 702 connecting with back light 70.Institute
It states backlight module 7 and passes through the brightness of back light 70 described in 700 independent control of backlight controller 702 and backlight drive circuit.Institute
Stating backlight module 7 further includes the respectively arranged light filling driving circuit 730 of corresponding each supplementary lighting sources 73 and light filling controller 732.
The backlight module 7 independently controls each supplementary lighting sources by the light filling driving circuit 730 and light filling controller 732
73。
It is understood that if functional module group 79 and light filling light that the through-hole 78 of the corresponding same backlight module 7 is arranged
Source 73 can not work at the same time, then the controller 790 of the functional module group 79 needs and light filling controller 730 or light filling driving circuit
732 is associated, to close corresponding supplementary lighting sources 73 in startup function mould group 79.Such as: the corresponding same backlight module 73
The color camera mould group 79 that is arranged of through-hole 78 and supplementary lighting sources 73, the light filling light that the supplementary lighting sources 73 issue can be to colour
The imaging of camera mould group 79 impacts, so needing when the color camera mould group 79 prepares and starts to work by corresponding
Controller 790 sends a signal to light filling controller 730 or light filling driving circuit 732 to close corresponding supplementary lighting sources 73.
Certainly, ground is changed, in certain change embodiments, what the through-hole 78 of the corresponding same backlight module 7 was arranged
When functional module group 79 and supplementary lighting sources 73 are also simultaneously operable.
As shown in figure 8, the 8th embodiment of the application provides a kind of backlight module 8, structure and sixth embodiment
Backlight module 6 it is essentially identical, the main distinction is the brightness of the back light 80 at least one supplementary lighting sources 83
Dependently of each other it is adjusted.
The backlight module 8 includes the backlight drive circuit 800 connecting with back light 80, connect with supplementary lighting sources 83
Light filling driving circuit 830 and the light source controller being connect respectively with the backlight drive circuit 800 and light filling driving circuit 830
810.Pass through the light guide plate 82 and optical film layer group by measuring the initial backlight light that the back light 80 directly issues
The brightness change situation projected after 86 losses, the light filling light directly issued as the supplementary lighting sources 83 are to be achieved
Thus brightness can determine that the numerical value between the light emission luminance of the back light 80 and the light emission luminance of supplementary lighting sources 83 closes
System can determine that backlight drive electric current and light filling drive electricity further according to back light 80 and the respective electrology characteristic of supplementary lighting sources 83
Numerical relation between stream.The light source controller 810 is according between preset backlight drive electric current and light filling driving current
Numerical relation dependently of each other adjusts the brightness of the back light 80 and at least one supplementary lighting sources 83, that is, works as user
When adjusting 80 brightness of back light, the brightness of the supplementary lighting sources 83 also can relatively be adjusted according to preset brightness relationship
Section, to ensure that display area corresponding to display area corresponding to back light 80 and supplementary lighting sources 83 is consistent uniformly
Display brightness.80 emitted light of back light through the light guide plate 82 and optical film layer group 86 after the brightness projected and the benefit
The difference between brightness that 83 emitted light via through holes 88 of radiant project is less than or equal to 10%.
It is understood that if functional module group 89 and light filling light that the through-hole 88 of the corresponding same backlight module 8 is arranged
Source 83 can not work at the same time, then the controller 890 of the functional module group 89 needs and light source controller 810 or light filling driving circuit
830 is associated, to close corresponding supplementary lighting sources 830 in startup function mould group 89.Such as: the corresponding same backlight module 8
The color camera mould group 89 that is arranged of through-hole 88 and supplementary lighting sources 83, the light filling light that the supplementary lighting sources 83 issue can be to colour
The imaging of camera mould group 89 impacts, so needing when the color camera mould group 89 prepares and starts to work by corresponding
Controller 890 sends a signal to the light source controller 810 or the light filling driving circuit 830 of supplementary lighting sources 83 is corresponding to close
Supplementary lighting sources 83.
Certainly, ground is changed, in certain change embodiments, what the through-hole 88 of the corresponding same backlight module 8 was arranged
When functional module group 89 and supplementary lighting sources 83 are also simultaneously operable.
As shown in figure 9, the 9th embodiment of the application provides a kind of backlight module 9, structure and third embodiment
Backlight module 3 is essentially identical, and the main distinction is that the barricade 970 of the framework 97 through entire backlight module 9, that is, is each passed through
Through-hole 98 in the reflector plate 94, light guide plate 92 and optical film layer group 96.The optical film layer group 96 is far from light guide plate 92
The periphery around 96 through-hole 98 of optical film layer group is provided with a circle light-shielding film layer 95 on one side surface.The light-shielding film layer
95 is corresponding with 98 shape of through-hole to avoid being formed in display area for covering the backlight light projected from 98 periphery of through-hole
Obvious circle.
As shown in Figure 10, the tenth embodiment of the application provides a kind of display module 100 comprising display panel 90 and such as
Backlight module 1-9 provided by any embodiment in above-mentioned first to the 9th embodiment.The display panel 90 for example but
It is not limited to liquid crystal display panel.
The liquid crystal display panel 90 includes but is not limited to first substrate (not shown), the film being arranged on first substrate crystalline substance
Body pipe array circuit (not shown), the second substrate (not shown), the liquid crystal layer (figure being arranged between first substrate and the second substrate
Do not show), upper polaroid (not shown), down polaroid (not shown), colored filter (not shown) and cover sheet (not shown)
Deng.The backlight module 1-9 provides backlight illumination.The liquid crystal display panel 90 is penetrated according to content to display modulation
Backlight with realize display.
In addition, below the backlight module when setting functional module group, functional module group can by through-hole on backlight module and
Display panel receives or/and transmitting light beam, to for example realize the image information function of sensing objects outside, or/and sensing is outer
The biological information of bound pair elephant simultaneously realizes identity recognition function to objects outside accordingly.
Specifically, the biological information that sensing obtains is compared the functional module group with the sample information prestored,
It is realized according to comparison result and confirming whether the identity of the objects outside is legal is identified to the biological information of objects outside.
Wherein, it is suitable to be such as, but not limited to fingerprint feature information, face feature information, blood oxygenation information etc. for the biological information
Information.Sample information is, for example, the biological information of one or more samples.Blood oxygenation information for example be used to judge outer bound pair
As if no is living body.
As shown in figure 11, the tenth embodiment of the application provides a kind of electronic equipment 110, such as, but not limited to hand
Machine, laptop, tablet computer etc..The electronic equipment 110 includes any implementation in the above-mentioned first to the 9th embodiment
Display module 100 provided by backlight module 1 or the tenth embodiment provided by mode.
Compared with prior art, backlight module provided herein, display module and electronic equipment are run through by opening up
The through-hole of backlight module is arranged functional module group, and corresponding through-hole setting supplementary lighting sources supplement backlight, so as in not shadow
It rings under the premise of screen is completely shown and the functional module group that panel front was originally arranged in is hidden in below screen, further increase
Shield accounting, realizes really screen display comprehensively.
In the description of this specification, reference term " embodiment ", " certain embodiments ", " schematically implementation
What the description of mode ", " example ", " specific example " or " some examples " etc. meant to describe in conjunction with the embodiment or example
Particular features, structures, materials, or characteristics are contained at least one embodiment or example of the application.In this specification
In, schematic expression of the above terms are not necessarily referring to identical embodiment or example.Moreover, the specific spy of description
Sign, structure, material or feature can be combined in any suitable manner in any one or more embodiments or example.
The foregoing is merely the better embodiments of the application, all the application's not to limit the application
Made any modifications, equivalent replacements, and improvements etc., should be included within the scope of protection of this application within spirit and principle.
Claims (10)
1. a kind of backlight module comprising light guide plate, reflector plate, optical film layer group, back light, the first supplementary lighting sources, second
Supplementary lighting sources, sensing light emitting mould group and sensing identification mould group, the light guide plate include incidence surface, light-emitting surface and with light-emitting surface phase
Pair bottom surface, the back light is arranged in the incidence surface side, and the bottom surface side of light guide plate, institute is arranged in the reflector plate
The light-emitting surface side that light guide plate is arranged in optical film layer group is stated, the backlight module offers respectively at different locations through institute
State light guide plate, the first through hole of reflector plate and optical film layer group and the second through-hole, first supplementary lighting sources and sensing light emitting
Mould group shares the light passing path through backlight module that first through hole is constituted, and second supplementary lighting sources and sensing identification mould group are total
The light passing path through backlight module constituted with the second through-hole.
2. backlight module as described in claim 1, it is characterised in that: the via area of the through-hole opened up on the reflector plate
Equal to or less than the via area of the through-hole opened up on the light guide plate.
3. backlight module as described in claim 1, it is characterised in that: the via area of opened up through-hole is big on the light guide plate
In the via area of the through-hole opened up in the optical film layer group.
4. backlight module as claimed in claim 3, it is characterised in that: the through-hole and the optical film opened up on the light guide plate
Aperture difference range is 100 to 400 microns between the through-hole opened up in layer group.
5. the backlight module as described in any one of claim 1-4, it is characterised in that: first supplementary lighting sources are for sending out
Light filling light is to first through hole out, and to supplement the backlight missing of first through hole corresponding region, second supplementary lighting sources are for sending out
Light filling light is to the second through-hole out, and to supplement the backlight missing of the second through-hole corresponding region, the sensing light emitting mould group is used for
Emitted outside light beam to backlight module by first through hole, the sensing identification mould group is used to receive by the second through-hole by the external world
The light beam that object reflection is returned, to realize the identification function to the objects outside according to the light beam received.
6. backlight module as claimed in claim 5, it is characterised in that: further include the first optics group of corresponding first through hole setting
Part and the second optical module of corresponding second through-hole setting, first supplementary lighting sources and sensing light emitting mould group pass through the first light
It learns component and shares the light passing path that first through hole is constituted, second supplementary lighting sources and sensing identification mould group pass through the second optics group
Part shares the light passing path that the second through-hole is constituted, wherein the first optical module and the second optical module all have semi-transparent semi-reflecting function
Energy.
7. backlight module as claimed in claim 6, it is characterised in that: first optics is arranged in the sensing light emitting mould group
Below component, and face first through hole is arranged, and the first supplementary lighting sources setting is located at the in first optical module side
The peripheral region of one through-hole, first optical module is to visible reflectance to infrared transmission, the sensing light emitting mould group
Emit infrared light to the first through hole by first optical module, first supplementary lighting sources emit visible light to described
First optical module is incident to the first through hole after the reflection of first optical module；Or first supplementary lighting sources
It is arranged below first optical module, and face first through hole is arranged, the sensing light emitting mould group is arranged described first
Optical module side, positioned at the peripheral region of first through hole, first optical module to infrared light reflection to visible transmission,
First supplementary lighting sources emit visible light to the first through hole, the sensing light emitting mould by first optical module
Group transmitting infrared light is incident to the first through hole after the reflection of first optical module to first optical module.
8. backlight module as claimed in claim 6, it is characterised in that: second optics is arranged in the sensing light identification mould group
Below component, and the second through-hole of face is arranged, and the second supplementary lighting sources setting is located at the in second optical module side
The peripheral region of two through-holes, for second optical module to visible reflectance to infrared transmission, the sensing light identifies mould group
It is received by second through-hole and second optical module by the reflected infrared light of objects outside, second light filling
Light source emits visible light to second optical module, and it is logical that described second is incident to after the reflection of second optical module
Hole；Or second supplementary lighting sources are arranged below second optical module, and the second through-hole of face is arranged, the sensing light is known
Other mould group is arranged in second optical module side, and positioned at the peripheral region of the second through-hole, second optical module is to red
External light reflection emits visible light to described second by second optical module to visible transmission, second supplementary lighting sources
Through-hole, second optical module are reflected by the reflected infrared light of objects outside, and the sensing light identifies mould group
It receives by the reflected infrared light of the second optical module.
9. a kind of display module comprising liquid crystal display panel and backlight mould as claimed in any of claims 1 to 8 in one of claims
Group.
10. a kind of electronic equipment comprising backlight module as claimed in any of claims 1 to 8 in one of claims or at least one such as
Display module as claimed in claim 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910041776.0A CN109709713A (en) | 2019-01-16 | 2019-01-16 | A kind of backlight module, display module and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910041776.0A CN109709713A (en) | 2019-01-16 | 2019-01-16 | A kind of backlight module, display module and electronic equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109709713A true CN109709713A (en) | 2019-05-03 |
Family
ID=66262245
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910041776.0A Withdrawn CN109709713A (en) | 2019-01-16 | 2019-01-16 | A kind of backlight module, display module and electronic equipment |
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| Country | Link |
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| CN (1) | CN109709713A (en) |
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| CN110376797A (en) * | 2019-08-05 | 2019-10-25 | 深圳市隆利科技股份有限公司 | Backlight module and electronic equipment for LCD fingerprint recognition |
| CN110399865A (en) * | 2019-08-27 | 2019-11-01 | 深圳市隆利科技股份有限公司 | Backlight module and electronic equipment for fingerprint recognition |
| CN110414466A (en) * | 2019-08-05 | 2019-11-05 | 深圳市隆利科技股份有限公司 | Electronic equipment |
| CN110414503A (en) * | 2019-08-05 | 2019-11-05 | 深圳市隆利科技股份有限公司 | Backlight module and electronic equipment for fingerprint recognition in LCD screen |
| CN110414467A (en) * | 2019-08-05 | 2019-11-05 | 深圳市隆利科技股份有限公司 | Fingerprint recognition terminal device |
| CN110516591A (en) * | 2019-08-27 | 2019-11-29 | 深圳市隆利科技股份有限公司 | Fingerprint recognition terminal device based on optical sensor |
| CN111258106A (en) * | 2020-02-19 | 2020-06-09 | 武汉华星光电技术有限公司 | Display panel and display device |
| CN111917992A (en) * | 2019-05-09 | 2020-11-10 | 北京小米移动软件有限公司 | Terminal, light supplement control method of terminal, preparation method and device |
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Application publication date: 20190503 |