CN109937378A

CN109937378A - A kind of backlight module, display module shield lower optical fingerprint systems and electronic device

Info

Publication number: CN109937378A
Application number: CN201980000279.4A
Authority: CN
Inventors: 青小刚; 皮波; 李顺展
Original assignee: Shenzhen Huiding Technology Co Ltd
Current assignee: Shenzhen Goodix Technology Co Ltd
Priority date: 2019-01-31
Filing date: 2019-01-31
Publication date: 2019-06-25
Also published as: CN111801677A; WO2020155038A1; CN210155481U; WO2020155512A1

Abstract

The present invention provides a kind of backlight module, display module, shield lower optical fingerprint systems and electronic device, backlight module includes first plane opposite with liquid crystal display panel non-display area, and second plane opposite with liquid crystal display panel display area, and first plane be vertically lower than the second plane, so that backlight module forms the accommodation space for accommodating functional module group at the first plane, i.e. the first plane and the second plane of backlight module are two planes that height is different on vertical direction, and first plane it is vertical height it is lower, thus accommodation space is left at the first plane of backlight module.When being bonded with liquid crystal display panel, functional module group can be set in the accommodation space, the second plane and liquid crystal display panel display area is thus set to be arranged at equal intervals towards the one side of the second plane, to make the light of backlight module that can uniformly be irradiated on display area, to ensure that the uniformity of display brightness, display effect is improved.

Description

A kind of backlight module, display module shield lower optical fingerprint systems and electronic device

Technical field

This application involves field of display technology more particularly to a kind of backlight module, display module, shield lower optical fingerprint systems And electronic device.

Background technique

Liquid crystal display (Liquid Crystal Display, LCD) has thin fuselage, power saving, radiationless etc. numerous excellent Point is widely used in the electronic products such as TV, computer, mobile phone.LCD display is a kind of passive active display, Display screen itself can not shine, but illuminated by the backlight module of display screen behind, display panel is usually by liquid crystal surface Plate and the parallel setting of backlight module simultaneously are close to be formed by black glue, wherein backlight module includes light source and is connected with light source Guide-lighting mould group, and light source is identical with the height of guide-lighting mould group, makes the plane of generally one height of backlight module, the light of light source It emits after the processing of guide-lighting mould group, is uniformly radiated on liquid crystal display panel, to make display panel display figure Case.With the development of display technology, such as fingerprint recognition additional function is gradually widely used in display equipment, has fingerprint The display panel of the functions such as identification also receives extensive research.

Currently, existing optical finger print display module, as shown in Figure 1, including fingerprint mould group, liquid crystal display panel and backlight mould Group, wherein liquid crystal display panel is located above backlight module, and liquid crystal display panel and backlight module are plane, due to backlight module without Method penetrates light, and for the recognition performance for meeting fingerprint mould group, fingerprint mould group need to be arranged in one end and the backlight mould of liquid crystal display panel Between one end of group, the other end of liquid crystal display panel and the other end of backlight module are bonded by black glue, are formed LCD optical finger print and are known Other display module.

However, the functional module group added can make to be formed between liquid crystal display panel and backlight module in existing display module The biggish gap of spacing, and the gap spacing formed is not consistent, causes to be close between backlight module and liquid crystal display panel, Keep the display brightness of display module uneven, influences display effect.

Summary of the invention

The present invention provides a kind of backlight module, display module, shields lower optical fingerprint systems and electronic device, existing to solve Display module, the functional module group added can make to form the inconsistent gap of spacing between liquid crystal display panel and backlight module, make to show Brightness irregularities, the problem of influencing display effect.

The first aspect of the present invention provides a kind of backlight module, for being bonded to form display module with liquid crystal display panel；

The backlight module includes first plane opposite with the liquid crystal display panel non-display area, and with the liquid crystal The second opposite plane of panel display section, and first plane is vertically lower than second plane, so that institute It states backlight module and forms accommodation space for accommodating functional module group at first plane.

In a specific embodiment of the invention, second plane is close to one end of first plane towards described One plane extends and connect with first plane.

In a specific embodiment of the invention, further includes: light guide connector section, the first end of the light guide connector section and institute It states the first plane to be connected, the second end of the light guide connector section is connected with second plane, and the first end is in vertical side It is lower than the second end upwards.

In a specific embodiment of the invention, the light guide connector section is arcuate structure.

In a specific embodiment of the invention, the backlight module includes guide-lighting mould group and light source board, the leaded light mould Group is located in the corresponding region of second plane, and the light source board is located in the corresponding region of first plane.

In a specific embodiment of the invention, further includes: the functional module group, the functional module group are arranged in the appearance It receives in space.

In a specific embodiment of the invention, the functional module group includes fingerprint recognition mould group.

The second aspect of the present invention provides a kind of display module, including liquid crystal display panel and backlight module, the backlight module Including first plane opposite with the liquid crystal display panel non-display area, and opposite with the liquid crystal display panel display area Two planes, first plane are vertically lower than second plane, and first plane and the non-display area There is the accommodation space for accommodating functional module group between domain.

In a specific embodiment of the invention, the one side of the non-display area towards first plane is shown with described The one side for showing region towards second plane is concordant, and institute's backlight module forms the receiving sky at first plane Between.

In a specific embodiment of the invention, the non-display area is towards the one side of first plane in vertical side It is higher than one side of the display area towards second plane upwards, and the non-display area is towards first plane The accommodation space is collectively formed with first plane on one side.

The third aspect of the present invention provides optical fingerprint systems under a kind of screen, is applied to have liquid crystal display panel and backlight module Electronic device, optical fingerprint systems include fingerprint detection light source and optical finger print identification mould group under the screen；The optics refers to Line identification mould group is used to be arranged in the lower section of the non-display area of the liquid crystal display panel, and is located at the backlight module described non- The accommodation space that display area is formed by design of sinking, and the fingerprint detection region of optical finger print identification mould group is at least Part is located at the display area of the liquid crystal display panel；The fingerprint detection light source is used to examine to the fingerprint for being located at the display area It surveys field emission and detects light, the detection light forms return light when being irradiated to the finger in the fingerprint detection region, and passes through Optical path guide structure is transmitted to the optical finger print identification mould group positioned at the non-display area.

In a specific embodiment of the invention, the backlight module includes the non-display area phase with the liquid crystal display panel Pair the first plane, and second plane opposite with the liquid crystal display panel display area, first plane is in vertical direction It is upper to be lower than second plane, to form the accommodation space between first plane and the non-display area.

In a specific embodiment of the invention, the fingerprint detection light source is independently of the liquid crystal display panel and the back The non-visible light source of optical mode group.

The fourth aspect of the present invention provides a kind of electronic device, including optical fingerprint systems under any of the above-described screen.

The present invention provides a kind of backlight module, display module, shields lower optical fingerprint systems and electronic device, by making backlight Mould group includes first plane opposite with liquid crystal display panel non-display area, and opposite with liquid crystal display panel display area second flat Face, and the first plane is made to be vertically lower than the second plane, form backlight module for accommodating function at the first plane The accommodation space of energy mould group, i.e. the first plane and the second plane of backlight module are two that height is different on vertical direction flat Face, and the vertical height of the first plane is lower, and accommodation space, function mould are thus left at the first plane of backlight module Group can be arranged in the accommodation space.When being bonded with liquid crystal display panel, it is first flat to be set to backlight module for functional module group In accommodation space at face, the one side of such second plane and liquid crystal display panel display area towards the second plane can be equidistant Setting ensure that display brightness so that making the light of backlight module can uniformly be irradiated on the display area of liquid crystal display panel Uniformity, improve display effect.Solves existing display module, the functional module group added can make liquid crystal display panel and backlight mould The inconsistent gap of spacing is formed between group, the problem of keeping display brightness uneven, influence display effect.

Detailed description of the invention

In order to illustrate the technical solutions in the embodiments of the present application or in the prior art more clearly, to embodiment or will show below There is attached drawing needed in technical description to be briefly described, it should be apparent that, the accompanying drawings in the following description is this Shen Some embodiments please for those of ordinary skill in the art without any creative labor, can be with It obtains other drawings based on these drawings.

Fig. 1 is a kind of existing structural schematic diagram of optical finger print display module；

Fig. 2 is a kind of existing structural schematic diagram of display module；

Fig. 3 is a kind of structural schematic diagram for backlight module that the embodiment of the present invention one provides；

Fig. 4 is a kind of structural schematic diagram for backlight module that the embodiment of the present invention three provides；

Fig. 5 is a kind of structural schematic diagram for display module that the embodiment of the present invention four provides；

Fig. 6 is the structural schematic diagram for another display module that the embodiment of the present invention four provides；

Fig. 7 is a kind of structural schematic diagram for display module that the embodiment of the present invention six provides；

Fig. 8 is the structural schematic diagram for another display module that the embodiment of the present invention six provides.

Description of symbols:

Backlight module -10；First plane -11；Second plane -12；

Light source board -13；Guide-lighting mould group -14；Light guide connector section -15；

Accommodation space -16；Liquid crystal display panel -20；Non-display area -21；

Display area -22；Functional module group -30；Black glue -40；

Glass cover-plate -50.

Specific embodiment

To keep the purposes, technical schemes and advantages of the embodiment of the present application clearer, below in conjunction with the embodiment of the present application In attached drawing, the technical scheme in the embodiment of the application is clearly and completely described, it is clear that described embodiment is Some embodiments of the present application, instead of all the embodiments.Based on the embodiment in the application, those of ordinary skill in the art Every other embodiment obtained without creative efforts, shall fall in the protection scope of this application.

Technical solution of the present invention is described in detail with specifically embodiment below.These specific implementations below Example can be combined with each other, and the same or similar concept or process may be repeated no more in some embodiments.

Embodiment one

Fig. 3 is a kind of structural schematic diagram for backlight module that the embodiment of the present invention one provides.

The first aspect of the present invention provides a kind of backlight module 10, for being bonded to form display module with liquid crystal display panel 20, Backlight module 10 is located at the behind of display module and can provide light source, and function is well-off brightness and the light that is evenly distributed Source, so that display module can normally show image.

Existing display module is usually formed by backlight module 10 and the fitting of liquid crystal display panel 20, as shown in Fig. 2, backlight module 10 include light source board 13 and guide-lighting mould group 14, and liquid crystal display panel 20 can be divided into display area 22 and non-display area 21, wherein showing Region 22 is used for the display of pattern, goes back cover glass cover board 50 on liquid crystal display panel 20.Backlight module 10 and liquid crystal display panel 20 are Horizontal plane, backlight module 10 and liquid crystal display panel 20 are arranged in parallel, and form display module by the black glue 40 at both ends abutting, Spaced set between backlight module 10 and liquid crystal display panel 20 can uniformly be irradiated from the light that backlight module 10 comes out in this way On liquid crystal display panel 20, the uniformity of 22 brightness of liquid crystal display panel display area ensure that, improve the effect of display.Existing When increasing some functional mould groups in display module, as described in the background art, the functional module group 30 added is located at liquid crystal display panel Between 20 one end and one end of backlight module 10, the other end of liquid crystal display panel 20 and the other end of backlight module 10 pass through black glue 40 bondings, thus make the gap for forming biggish gap between liquid crystal display panel 20 and backlight module 10, and being formed between the two Spacing is not consistent, keeps the display brightness of display module uneven, reduces display effect.

For these reasons, the embodiment of the present invention provides a kind of backlight module 10, for be bonded with liquid crystal display panel to be formed it is aobvious Show mould group, as shown in figure 3, the backlight module 10 includes first plane 11, Yi Jiyu opposite with liquid crystal display panel non-display area The second opposite plane 12 of liquid crystal display panel display area, wherein plane refers to the plane with horizontal direction parallel, i.e. the first plane 11 and second plane 12 be two horizontal planes being parallel to each other.Backlight module 10 includes the first plane 11 and the second plane 12, it should be noted that one end of the first plane 11 is connected with 12 one end of the second plane to guarantee the performance of backlight module 10, Wherein, when being bonded backlight module 10 and liquid crystal display panel to form display module, the first plane 11 and liquid crystal of backlight module 10 The non-display area of panel is oppositely arranged, and the second plane 12 of backlight module 10 and the display area of liquid crystal display panel are oppositely arranged.

For the uniformity for still ensuring that display brightness after functional module group is arranged, in the present embodiment, as shown in figure 3, One plane 11 is vertically lower than the second plane 12, forms backlight module 10 for accommodating function at the first plane 11 The accommodation space 16 of mould group, wherein vertical direction refers to perpendicular to horizontal direction, i.e. 11 He of the first plane of backlight module 10 Second plane 12 is two planes that height is different on vertical direction, and the vertical height of the first plane 11 is lower, thus exists Accommodation space 16 is left at first plane 11 of backlight module 10, functional module group can be arranged in the accommodation space 16, When being bonded with liquid crystal display panel, the first plane 11 is opposite with non-display area, and the second plane 12 is opposite with display area, function mould Group can be set in the accommodation space 16 at the first plane 11 of backlight module 10, and the first plane 11 and the second plane 12 For two different planes of height, thus make the one side of the second plane 12 and liquid crystal display panel display area towards the second plane 12 It can be arranged at equal intervals, so that making the light of backlight module 10 can uniformly be irradiated on the display area of liquid crystal display panel, from And ensure that the uniformity of display brightness, improve display effect.

In the present embodiment, the specific value that the first plane 11 is vertically lower than the second plane 12 can be according to reality The thickness for the functional module group being arranged in demand carries out selection setting, it should be noted that due to leading to when being bonded with liquid crystal display panel It crosses black glue one end of the second plane 12 is Nian Jie with one end of liquid crystal display panel display area, makes display area towards the second plane 12 One side and the second plane 12 between have equidistant spacing, then the first plane 11 is vertically lower than the second plane 12 Specific value can subtract one side and second plane 12 of the display area towards the second plane 12 by using the thickness of functional module group Between distance values obtain.Specifically, if functional module group 30 is with a thickness of 1mm, and by the backlight module 10 and liquid crystal surface After plate fitting, display area is towards with the spacing of 0.5mm, then first is flat between the one side and the second plane 12 of the second plane 12 The height value that face 11 can be vertically lower than the second plane 12 is 0.5mm.

Further, in the present embodiment, backlight module 10 includes guide-lighting mould group 14 and light source board 13, guide-lighting mould group 14 In in the corresponding region of the second plane 12, light source board 13 is located in the corresponding region of the first plane 11, as shown in figure 3, guide-lighting mould One end of group 14 is connected with one end of light source board 13, and light source board 13 is that backlight module 10 provides light source, the light that light source board 13 issues It is emitted after the processing of guide-lighting mould group 14.Guide-lighting mould group 14 is located in the corresponding region of the second plane 12, and light source board 13 In in the corresponding region of the first plane 11, guide-lighting 14 setting of mould group can be less than by the vertical height that light source board 13 is arranged Vertical height, i.e., sink the setting position of light source board 13, the first plane 11 can also be made to be vertically lower than second Plane 12, so that backlight module 10 reserves accommodation space 16 at the corresponding position of light source board 13 functional module group is arranged.

Wherein, in the present embodiment, the guide-lighting mould group 14 of backlight module 10 may include reinforcement steel plate, reflectance coating, light guide plate, Even smooth film, brightness enhancement film, the composition film layer of the leaded light mould group 14 can be composition film layer in the prior art, in addition to above-mentioned film layer also It may include some other film layer, the set-up mode between specific film layer and film layer can refer to the prior art, in the present embodiment It repeats no more.

Further, in the present embodiment, which further includes functional module group, and functional module group setting is accommodating sky Between in 16, wherein the functional module group can be fingerprint mould group, which can also be for promoting 10 performance of backlight module Or make mould group of the backlight module 10 with other function itself.

The present embodiment provides a kind of backlight modules 10, include opposite with liquid crystal display panel display area by backlight module 10 First plane 11, and second plane 12 opposite with liquid crystal display panel display area, and make the first plane 11 in the vertical direction Lower than the second plane 12, backlight module 10 is set to form the accommodation space 16 for accommodating functional module group at the first plane 11, i.e., The first plane 11 and the second plane 12 of backlight module 10 two planes different for height on vertical direction, and the first plane 11 Vertical height it is lower, thus leave accommodation space 16 at the first plane 11 of backlight module 10, functional module group can be with It is arranged in the accommodation space 16.When being bonded with liquid crystal display panel, functional module group is set to the first plane 11 of backlight module 10 In the accommodation space 16 at place, the one side of such second plane 12 and liquid crystal display panel display area towards the second plane 12 can be waited The setting of spacing ensure that aobvious so that making the light of backlight module 10 can uniformly be irradiated on the display area of liquid crystal display panel The uniformity for showing brightness, improves display effect.Solve existing display module, the functional module group added can make liquid crystal display panel and The inconsistent gap of spacing is formed between backlight module, the problem of keeping display brightness uneven, influence display effect.

Embodiment two

Further, on the basis of example 1, in the present embodiment, the second plane 12 close to the first plane 11 one End extends towards the first plane 11 and connect with the first plane 11, as shown in figure 3, by making the second plane 12 close to the first plane 11 one end extends towards the first plane 11 simultaneously to be connect with the first plane 11, i.e. the second plane 12 connect with the first plane 11 one End forms polymorphic structure, to make the first plane 11 lower than the second plane 12, and connect the first plane 11 with the second plane 12, And then accommodation space 16 is reserved at first plane 11 on backlight module 10, for functional module group to be arranged, meanwhile, the second plane 12 The part extended is the material with guide-lighting performance, will not influence the performance of backlight module 10.

Wherein, in the present embodiment, specifically, backlight module 10 includes guide-lighting mould group 14 and light source board 13, guide-lighting mould group 14 are located in the corresponding region of the second plane 12, and light source board 13 is located in the corresponding region of the first plane 11, and guide-lighting mould group 14 is leaned on One end of dipped beam source plate 13 extends towards light source board 13 and connect with light source board 13, i.e., what guide-lighting mould group 14 was connect with light source board 13 One end forms polymorphic structure to connect with light source board 13, is formed at the position corresponding with light source board 13 of backlight module 10 and accommodates sky Between 16 while ensure that the performance of backlight module 10.

It should be noted that in the present embodiment, abnormity refers to the shape different from the first plane 11 and the second plane 12, Referring to that the connection structure is is not horizontal plane, specifically, can be to the inclined inclined-plane of the first plane, cambered surface etc..

A kind of backlight module 10 provided in this embodiment, by making the second plane 12 close to one end direction of the first plane 11 First plane 11 extends and connect with the first plane 11, i.e., one end that the second plane 12 is connect with the first plane 11 forms special-shaped knot Structure with the first plane 11 to connect, to form the accommodation space for accommodating functional module group at the first plane 11 of backlight module 10 16, while ensure that the performance of backlight module 10.

Embodiment three

Fig. 4 is a kind of structural schematic diagram for backlight module that the embodiment of the present invention three provides.

Further, on the basis of above-described embodiment three, in the present embodiment, the backlight module 10 further include: guide-lighting Interconnecting piece 15, as shown in figure 4, the first end of the light guide connector section 15 is connected with the first plane 11, the second of light guide connector section 15 End is connected with the second plane 12, and first end is vertically lower than second end, i.e. the first plane 11 and the second plane 12 are logical It crosses light guide connector section 15 to be connected, and the first end that is connected with the first plane 11 of light guide connector section 15 is lower than light guide connector section 15 and the The connected second end of two planes 12, just makes the first plane 11 in the vertical direction by the light guide connector section 15 of polymorphic structure in this way Lower than the second plane 12, so that backlight module 10 be made to form accommodation space 16 at the first plane 11, while backlight mould ensure that The performance of group 10.

It should be noted that in the present embodiment, which has guide-lighting performance, to meet backlight module 10 Functional requirement, the shape of the light guide connector section 15 can select to be arranged according to actual demand, specifically, can be according to the first plane 11 and the second plane 12 height gap in the vertical direction and backlight module brightness characteristics demand etc. are selected, wherein In the present embodiment, which is arcuate structure.The light guide connector section 15 can be made of a variety of smooth film layer stackings, such as The light guide connector section 15 may include the reinforcement steel plate being set in sequence, reflectance coating, light guide plate, even smooth film, brightness enhancement film etc..

Wherein, in the present embodiment, specifically, as shown in figure 4, the backlight module 10 further includes guide-lighting mould group 14 and light source Plate 13, guide-lighting mould group 14 are located in the corresponding region of the second plane 12, and light source board 13 is located in the corresponding region of the first plane 11, The light source board 13 is connected with the first end of light guide connector section 15, and the second end of light guide connector section 15 is connected with guide-lighting mould group 14, from And so that light source board 13 is connected with guide-lighting mould group 14 by light guide connector section 15, in the position corresponding with light source board 13 of backlight module 10 Place ensure that the performance of backlight module 10 while forming accommodation space 16.

A kind of backlight module 10 provided in this embodiment makes the of light guide connector section 15 by including light guide connector section 15 One end is connected with the first plane 11, and the second end of light guide connector section 15 is connected with the second plane 12, and first end is in vertical direction Upper second end, i.e. the first plane 11 and the second plane 12 of being lower than is connected by light guide connector section 15, and leading by polymorphic structure Light connects portion 15 makes the first plane 11 be vertically lower than the second plane 12, to make backlight module 10 in the first plane 11 Place forms accommodation space 16, while ensure that the performance of backlight module 10.

Example IV

Fig. 5 is a kind of structural schematic diagram for display module that the embodiment of the present invention four provides, and Fig. 6 is the embodiment of the present invention four The structural schematic diagram of another display module of offer.

The second aspect of the present invention provides a kind of display module, as shown in Figure 5 and Figure 6, in the present embodiment, the display mould Group includes liquid crystal display panel 20 and backlight module 10, wherein liquid crystal display panel 20 includes non-display area 21 and display area 22, backlight Mould group 10 includes the first plane 11 and the second plane 12, and the first plane 11 is oppositely arranged with non-display area 21, the second plane 12 It is oppositely arranged with display area 22, it should be noted that in the present embodiment, plane refers to the plane with horizontal direction parallel, That is the first plane 11 and the second plane 12 are two horizontal planes being parallel to each other.

The uniformity of the display module display brightness of functional module group is equipped with for promotion, in the present embodiment, as shown in figure 5, First plane 11 of backlight module 10 is vertically lower than the second plane 12, and the first plane 11 and non-display area 21 it Between there is accommodation space 16 for accommodating functional module group 30, wherein vertical direction refers to perpendicular to horizontal direction, i.e. backlight The height of first plane 11 of mould group 10 and the second plane 12 in the vertical direction is different, and the first plane 11 is lower than the second plane 12, accommodation space 16 thus is left between the first plane 11 and non-display area 21 of backlight module 10, the function added Can mould group 30 may be disposed in the accommodation space 16, and since the second plane 12 and the first plane 11 are that different two of height put down Face just enables the face spaced set of the second plane 12 and display area 22 towards the second plane 12, to make backlight mould The light of group 10 can be uniformly irradiated on the display area 22 of liquid crystal display panel 20, ensure that 22 display brightness of display area Uniformity improves display effect.

In the present embodiment, the specific value that the first plane 11 is vertically lower than the second plane 12 can be according to reality The thickness for the functional module group 30 added in demand carries out selection setting, and the first plane 11 is vertically lower than the second plane 12 Specific value one side and second of the display area 22 towards the second plane 12 can be subtracted by using the thickness of functional module group 30 Distance values between plane 12 obtain, and specific calculation can refer to embodiment one, repeat no more in the present embodiment.

Further, in the present embodiment, backlight module 10 includes guide-lighting mould group 14 and light source board 13, guide-lighting mould group 14 In in the corresponding region of the second plane 12, light source board 13 is located in the corresponding region of the first plane 11, as shown in figure 5, guide-lighting mould One end of group 14 is connected with one end of light source board 13, and light source board 13 is that backlight module 10 provides light source, the light that light source board 13 issues It is emitted after the processing of guide-lighting mould group 14.Guide-lighting mould group 14 is located in the corresponding region of the second plane 12, and light source board 13 In in the corresponding region of the first plane 11, guide-lighting 14 setting of mould group can be less than by the vertical height that light source board 13 is arranged Vertical height, i.e., sink the setting position of light source board 13, the first plane 11 can also be made to be vertically lower than second Plane 12, to make to form the accommodation space 16 for accommodating functional module group between light source board 13 and non-display area 21.

Wherein, in the present embodiment, the composition film layer of guide-lighting mould group 14 can refer to embodiment one, in the present embodiment no longer It repeats.Liquid crystal display panel may include down polaroid, array substrate, liquid crystal, colored filter and upper polaroid etc., the liquid crystal display panel It can be existing liquid crystal display panel, may also comprise some other structures, specific structure and set-up mode can be found in existing There is the liquid crystal display panel in technology.

Further, in the present embodiment, as shown in fig. 6, the display module further includes functional module group 30, the functional module group 30 are arranged in accommodation space 16, and wherein the functional module group 30 can be fingerprint mould group, are also possible to that other function can be achieved Mould group.

In the present embodiment, which can be Electronic Paper, tablet computer, liquid crystal display, LCD TV, number The component shown in the products such as photo frame, mobile phone.

The present embodiment provides a kind of display modules, include and 20 non-display area of liquid crystal display panel, 21 phase by backlight module 10 Pair the first plane 11, and second plane 12 opposite with liquid crystal display panel display area 22, and make the first plane 11 vertical It is lower than the second plane 12 on direction, and there is the appearance for accommodating functional module group 30 between the first plane 11 and non-display area 21 It receives space 16, that is, keeps the height of the first plane 11 of backlight module 10 and the second plane 12 in the vertical direction different, and First plane 11 is lower than the second plane 12, thus reserves between the first plane 11 and non-display area 21 of backlight module 10 Accommodation space 16, the functional module group 30 added can be set in the accommodation space 16, enable the second plane 12 and aobvious Show a face spaced set of the region 22 towards the second plane 12, so that the light of backlight module 10 be enable uniformly to be irradiated to On the display area 22 of liquid crystal display panel 20, it ensure that the uniformity of 22 display brightness of display area, improve display effect.

Embodiment five

Further, on the basis of above-described embodiment four, as shown in Figure 5 and Figure 6, in the present embodiment, non-display area Domain 21 towards the first plane 11 with display area 22 towards the second plane 12 while it is concordant, and backlight module 10 is Accommodation space 16, the i.e. non-display area 21 of liquid crystal display panel 20 and display area 22 are formed at one plane 11 towards backlight module 10 Be on one side flush with each other sustained height plane, and to be vertically lower than second flat for the first plane 11 of backlight module 10 Face 12 makes backlight module 10 form the accommodation space 16 for accommodating functional module group 30 at the first plane 11, to realize After functional module group 30 is set, still can guarantee display area 22 towards between the one side and the second plane 12 of the second plane 12 etc. Spacing setting, ensure that the uniformity of 22 display brightness of display area.

In the present embodiment, the specific value that the first plane 11 is vertically lower than the second plane 12 can be according to reality The thickness for the functional module group 30 being arranged in demand carries out selection setting, and the first plane 11 is vertically lower than the second plane 12 Specific value one side and second of the display area 22 towards the second plane 12 can be subtracted by using the thickness of functional module group 30 Distance values between plane 12 obtain, and specific calculation can refer to embodiment one, repeat no more in the present embodiment.

Further, in the present embodiment, the first plane 11 and the second plane 12 for making backlight module 10 connect, and the One plane 11 is vertically lower than the second plane 12, and specific set-up mode can be the second plane 12 close to the first plane 11 one end extends towards the first plane 11 and connect with the first plane 11, so as to be connected by the second plane 12 and the first plane 11 The one end connect forms polymorphic structure to connect with the first plane 11, and specific set-up mode can be found in embodiment two；It is also possible to So that the first plane 11 and the second plane 12 is realized connection by the light guide connector section 15 of abnormity, and makes the first plane 11 in vertical side It is lower than the second plane 12 upwards, specific set-up mode can be found in embodiment three, repeat no more in the present embodiment.

Wherein, in the present embodiment, backlight module 10 includes guide-lighting mould group 14 and light source board 13, and guide-lighting mould group 14 is located at the In the corresponding region of two plane 12, light source board 13 is located in the corresponding region of the first plane 11, specific set-up mode and film layer Structure is repeated no more in the present embodiment referring to embodiment one.Wherein, guide-lighting mould group 14 and light source board 13 can be by making guide-lighting mould group 14 one end extends towards light source board 13 and is connected with light source board 13, and guide-lighting mould group 14 can also pass through light guide connector section 15 and light source Plate 13 is connected.

Further, in the present embodiment, as shown in fig. 6, the display module further includes functional mould group 30, the function mould Group 30 is arranged in accommodation space 16, and functional module group 30 can be fingerprint recognition mould group, be also possible to the mould group of other functions.

A kind of display module provided in this embodiment, by make non-display area 21 towards the first plane 11 one side with it is aobvious The one side for showing region 22 towards the second plane 12 is concordant, so that backlight module 10 is formed accommodation space 16 at the first plane 11, i.e., The non-display area 21 of liquid crystal display panel 20 and display area 22 towards backlight module 10 be on one side flush with each other sustained height Plane, and the first plane 11 of backlight module 10 is vertically lower than the second plane 12, keeps backlight module 10 flat first It is formed at face 11 for accommodating the accommodation space 16 of functional module group 30, to realize after functional module group 30 is arranged, can still be protected Display area 22 is demonstrate,proved towards the spaced set between the one side and the second plane 12 of the second plane 12, ensure that display area 22 The uniformity of display brightness.

Embodiment six

Fig. 7 is a kind of structural schematic diagram for display module that the embodiment of the present invention six provides, and Fig. 8 is the embodiment of the present invention six The structural schematic diagram of another display module of offer.

Further, on the basis of above-described embodiment four, as shown in Figure 7 and Figure 8, in the present embodiment, non-display area Domain 21 towards the first plane 11 be positioned vertically higher than display area 22 towards second plane 12 while, and it is non-aobvious Accommodation space 16 is collectively formed with the first plane 11 in the one side for showing region 21 towards the first plane 11, that is, makes non-display area 21 towards the first planes 11 and display area 22 towards second plane 12 while for height on vertical direction it is different Two planes, and the one side of non-display area 21 towards the first plane 11 is higher than display area 22 towards the one of the second plane 12 Face, while the first plane 11 of backlight module 10 is lower than the second plane 12, thus makes non-display area 21 towards the first plane 11 one side together forms accommodation space 16 with the first plane 11, to realize after functional module group 30 is arranged, can still protect Display area 22 is demonstrate,proved towards the spaced set between the one side and the second plane 12 of the second plane 12, ensure that display area 22 The uniformity of display brightness.

Wherein, in the present embodiment, as shown in fig. 7, non-display area 21 can direction close to one end of display area 22 Display area 22 extends realization and connect with display area 22, so that non-display area 21 be made to be higher than towards the one side of the first plane 11 Display area 22 guarantees spaced set between display area 22 and the second plane 12 towards one end of the second plane 12. Connection between the two can also be realized between display area 22 and non-display area 21 by the interconnecting piece of polymorphic structure.

It should be noted that in the present embodiment, the one side of non-display area 21 towards the first plane 11 is higher than viewing area Domain 22 is lower than 22 direction of height and display area of the second plane 12 towards height, the first plane 11 of 12 one side of the second plane Spacing between the one side of second plane 12 and the second plane 12 together constitutes the height value of accommodation space 16, namely is equal to function The thickness value of energy mould group 30, due to being additionally provided with glass cover-plate 50 on liquid crystal display panel 20, and liquid crystal display panel 20 has more film Therefore in the present embodiment, non-display area 21, display area 22, the is arranged according to the thickness of functional module group 30 in layer and wiring When the height of one plane 11 and the second plane 12, the one side of non-display area 21 towards the first plane 11 is higher than 22 court of display area The ratio that thickness should be accounted for the height number of 12 one side of the second plane is smaller, to guarantee the performance of liquid crystal display panel 20, specifically, such as Functional module group 30 is towards the spacing between the one side and the second plane 12 of the second plane 12 with a thickness of 1mm, display area 22 0.4mm, at this point, the one side of non-display area 21 towards the first plane 11 can be higher than display area 22 towards the second plane 12 Height on one side is 0.2mm, and the first plane 11 is 0.4mm lower than the height of the second plane 12.

Further, in the present embodiment, the first plane 11 and the second plane 12 for making backlight module 10 connect, and the One plane 11 is vertically lower than the second plane 12, and specific set-up mode can be the second plane 12 close to the first plane 11 one end extends towards the first plane 11 and connect with the first plane 11, i.e. the second plane 12 connect with the first plane 11 one End forms polymorphic structure to connect with the first plane 11, and specific set-up mode can be found in embodiment two；It is also possible to make first Plane 11 and the second plane 12 are realized by the light guide connector section 15 of abnormity to be connected, and keeps the first plane 11 low in the vertical direction In the second plane 12, specific set-up mode can be found in embodiment three, repeat no more in the present embodiment.

Further, in the present embodiment, as shown in figure 8, the display module further includes functional mould group 30, the function mould Group 30 is arranged in the accommodation space 16, and functional module group 30 can be fingerprint recognition mould group, be also possible to the mould of other functions Group.

The present embodiment provides a kind of display modules, by making non-display area 21 towards the one side of the first plane 11 vertical On direction be higher than one side of the display area 22 towards the second plane 12, and non-display area 21 towards the first plane 11 one side with Accommodation space 16 is collectively formed in first plane 11, that is, makes one side and viewing area of the non-display area 21 towards the first plane 11 The one side of domain 22 towards the second plane 12 two planes different for height on vertical direction, and non-display area 21 towards first Plane 11 be higher than display area 22 towards the second plane 12 while, while the first plane 11 of backlight module 10 is lower than Second plane 12 thus makes non-display area 21 together form receiving with the first plane 11 towards the one side of the first plane 11 Space 16, to realize after functional module group 30 is arranged, still can guarantee display area 22 towards the one side of the second plane 12 and Spaced set between second plane 12, ensure that the uniformity of 22 display brightness of display area.

Embodiment seven

The third aspect of the present invention provides optical fingerprint systems under a kind of screen, is applied to have liquid crystal display panel and backlight module Electronic device, optical fingerprint systems include fingerprint detection light source and optical finger print identification mould group under the screen, in the present embodiment, Referring to Fig. 6, liquid crystal display panel 20 includes non-display area 21 and display area 22, and optical finger print identifies mould group for being arranged in liquid crystal The lower section of the non-display area 21 of panel 20, and it is located at backlight module 10 in non-display area 21 by sinking what design was formed Accommodation space 16, specifically, as shown in fig. 6, backlight module 10 is at the corresponding position of non-display area 21 by sinking to setting Meter forms accommodation space 16, and optical finger print mould group is arranged in the accommodation space 16, the display area 22 of such liquid crystal display panel 20 Towards backlight module 10 and backlight module 10 display area 22 towards liquid crystal display panel 20 while between can wait The setting of spacing is protected so that the light of backlight module 10 be enable uniformly to be irradiated on the display area 22 of liquid crystal display panel 20 The uniformity for having demonstrate,proved 22 display brightness of display area, improves display effect.

In the present embodiment, optical finger print identification mould group is for being arranged under the non-display area 21 of liquid crystal display panel 20 Side, and the fingerprint detection region of optical finger print identification mould group is at least partially disposed at the display area 22 of liquid crystal display panel 20, fingerprint inspection It surveys light source to be used to detect light to the fingerprint detection field emission for being located at display area 22, detection light is being irradiated to fingerprint detection region Finger when form return light, and the optical finger print positioned at non-display area 21 is transmitted to by optical path guide structure and identifies mould Group, wherein optical path guide structure refers to the light guide structure that the light guide member layer material of 10 side of backlight module is formed, and knows in fingerprint detection When other, finger is placed in the fingerprint detection region of liquid crystal display panel display area 22, and fingerprint detection light source is to fingerprint detection region The detection light of transmitting, forms the return light for having finger print information after being radiated on finger, return light is guided in optical path guide structure Under be transmitted at non-display area 21 optical finger print identification mould group, identification is compared to finger print information.

Further, in the present embodiment, as shown in fig. 6, liquid crystal display panel 20 includes non-display area 21 and display area 22, backlight module 10 includes the first plane 11 and the second plane 12, and the first plane 11 is oppositely arranged with non-display area 21, and second Plane 12 is oppositely arranged with display area 22, it should be noted that in the present embodiment, plane refers to and horizontal direction parallel Plane, i.e. the first plane 11 and the second plane 12 are two horizontal planes being parallel to each other.Wherein, the first of backlight module 10 is flat Face 11 is vertically lower than the second plane 12, and has the function of between the first plane 11 and non-display area 21 for accommodating The accommodation space 16 16 of mould group 30, wherein vertical direction refers to that perpendicular to horizontal direction, i.e. the first of backlight module 10 is flat The height of face 11 and the second plane 12 in the vertical direction is different, and the first plane 11 is lower than the second plane 12, is thus carrying on the back Accommodation space 16 is left between the first plane 11 and non-display area 21 of optical mode group 10, optical finger print identifies that mould group is settable In in the accommodation space 16, and due to the second plane 12 and the first plane 11 two planes that be height different, just make second flat It face 12 can be with display area 22 towards a face spaced set of the second plane 12, to enable the light of backlight module 10 Uniformly it is irradiated on the display area 22 of liquid crystal display panel 20.

In the present embodiment, the specific value that the first plane 11 is vertically lower than the second plane 12 can be according to reality The thickness for the functional module group 30 added in demand carries out selection setting, and specific calculation can refer to embodiment one, in this reality It applies in example and repeats no more.

In the present embodiment, backlight module 10 includes guide-lighting mould group 14 and light source board 13, and it is flat that guide-lighting mould group 14 is located at second In the corresponding region in face 12, light source board 13 is located in the corresponding region of the first plane 11, as shown in fig. 6, the one of guide-lighting mould group 14 End is connected with one end of light source board 13, and light source board 13 is that backlight module 10 provides light source, and the light that light source board 13 issues is by guide-lighting It is emitted after the processing of mould group 14.Guide-lighting mould group 14 is located in the corresponding region of the second plane 12, and it is flat that light source board 13 is located at first In the corresponding region in face 11, the vertical height of guide-lighting 14 setting of mould group can be less than by the vertical height that light source board 13 is arranged The setting position of light source board 13 is sunk, the first plane 11 can also be made to be vertically lower than the second plane 12 by degree, To make to form the accommodation space 16 for accommodating functional module group between light source board 13 and non-display area 21.

In the present embodiment, fingerprint detection light source is the non-visible light source independently of liquid crystal display panel and backlight module, i.e., should Fingerprint detection light source is the detection light source being independently arranged, for sending out to the fingerprint detection region for being located at display area corresponding position Penetrate detection light.

Optical fingerprint systems under a kind of screen provided in this embodiment, by including that fingerprint detection light source and optical finger print identify Mould group, and optical finger print identification mould group is used to be arranged in the lower section of the non-display area 21 of liquid crystal display panel 20, and is located at backlight The accommodation space 16 that mould group 10 is formed in non-display area 21 by design of sinking, and the fingerprint inspection of optical finger print identification mould group The display area 22 that region is at least partially disposed at liquid crystal display panel 20 is surveyed, makes the fingerprint detection light source for positioned at display area 22 Fingerprint detection field emission detect light, detection light forms return light when being irradiated to the finger in fingerprint detection region, and passes through Optical path guide structure is transmitted to the optical finger print identification mould group positioned at non-display area 21, to realize the identification to fingerprint, i.e., By the way that optical finger print mould group is arranged in the accommodation space 16 that backlight module 10 is formed at non-display area 21 by sinking, In this way the display area 22 of liquid crystal display panel 20 towards backlight module 10 one side and backlight module 10 in display area 22 towards liquid It can be arranged at equal intervals between the one side of crystal panel 20, so that the light of backlight module 10 be enable uniformly to be irradiated to liquid On the display area 11 of crystal panel 20, it ensure that the uniformity of 22 display brightness of display area, improve display effect.

Embodiment eight

Further, on the basis of above-described embodiment seven, as shown in fig. 6, in the present embodiment, 21 court of non-display area To the first plane 11 with display area 22 towards the second plane 12 while it is concordant, and backlight module 10 is in the first plane Accommodation space 16, the i.e. one side of the non-display area 21 of liquid crystal display panel 20 and display area 22 towards backlight module 10 are formed at 11 It is the sustained height plane of flush with each other, and the first plane 11 of backlight module 10 is vertically lower than the second plane 12, Backlight module 10 is set to form the accommodation space 16 for accommodating optical finger print identification mould group at the first plane 11, to ensure that It improves display area 22 towards the spaced set between the one side and the second plane 12 of the second plane 12 and shows in display area 22 The uniformity of brightness.

In the present embodiment, the specific value that the first plane 11 is vertically lower than the second plane 12 can be according to reality The thickness for the optical finger print identification mould group being arranged in demand carries out selection setting, and specific calculation can refer to embodiment one, It repeats no more in the present embodiment.

Wherein, in the present embodiment, backlight module 10 includes guide-lighting mould group 14 and light source board 13, and guide-lighting mould group 14 is located at the In the corresponding region of two plane 12, light source board 13 is located in the corresponding region of the first plane 11, specific set-up mode and film layer Structure is repeated no more in the present embodiment referring to embodiment seven.Wherein, guide-lighting mould group 14 and light source board 13 can be by making guide-lighting mould group 14 one end extends towards light source board 13 and is connected with light source board 13, and guide-lighting mould group 14 can also pass through light guide connector section 15 and light source Plate 13 is connected.

Optical fingerprint systems under a kind of screen provided in this embodiment, by the non-display area 21 that liquid crystal display panel 20 is arranged in Lower section, and be located at backlight module 10 non-display area 21 by sink design formation accommodation space 16, specifically, making Non-display area 21 is towards one side and the display area 22 of 10 first plane 11 of backlight module towards 10 second plane of backlight module 12 one side is concordant, and backlight module 10 is made to form accommodation space 16 at the first plane 11, by optical finger print identification mould group setting In the accommodation space 16, thus ensure that display area 22 towards between the one side and the second plane 12 of the second plane 12 etc. Spacing setting, improves the uniformity of 22 display brightness of display area.

Embodiment nine

Further, on the basis of above-described embodiment seven, as shown in figure 8, in the present embodiment, 21 court of non-display area To the first plane 11 be positioned vertically higher than display area 22 towards second plane 12 while, and non-display area Accommodation space 16 is collectively formed with the first plane 11 in the one side of 21 the first planes 11 of direction, that is, makes 21 direction of non-display area First plane 11 and display area 22 towards the second plane 12 while for height is different on vertical direction two it is flat Face, and non-display area 21 towards the first plane 11 be higher than display area 22 towards second plane 12 while, simultaneously First plane 11 of backlight module 10 is lower than the second plane 12, thus makes non-display area 21 towards the one side of the first plane 11 Accommodation space 16 is together formed with the first plane 11, optical finger print identifies that mould group is arranged in the accommodation space 16, to protect Display area 22 has been demonstrate,proved towards the spaced set between the one side and the second plane 12 of the second plane 12, has improved display area The uniformity of 22 display brightness.

Wherein, in the present embodiment, as shown in figure 8, non-display area 21 can direction close to one end of display area 22 Display area 22 extends realization and connect with display area 22, so that non-display area 21 be made to be higher than towards the one side of the first plane 11 Display area 22 guarantees spaced set between display area 22 and the second plane 12 towards one end of the second plane 12. Connection between the two can also be realized between display area 22 and non-display area 21 by the interconnecting piece of polymorphic structure.

It should be noted that in the present embodiment, the one side of non-display area 21 towards the first plane 11 is higher than viewing area Domain 22 is lower than 22 direction of height and display area of the second plane 12 towards height, the first plane 11 of 12 one side of the second plane Spacing between the one side of second plane 12 and the second plane 12 together constitutes the height value of accommodation space 16, specific to be arranged And calculation can refer to embodiment six, repeat no more in the present embodiment.

Optical fingerprint systems under a kind of screen provided in this embodiment, by the way that optical finger print is identified that mould group is arranged in liquid crystal surface The lower section of the non-display area 21 of plate 20, and it is located at the appearance that backlight module 10 is formed in non-display area 21 by design of sinking Receive space 16, specifically, by make non-display area 21 towards 10 first plane 11 of backlight module one side in the vertical direction Higher than display area 22 towards the one side of 10 second plane 12 of backlight module, and non-display area 21 is towards the one of the first plane 11 Accommodation space 16 is collectively formed in face and the first plane 11, and optical finger print identification mould group is arranged in the accommodation space 16, thus It ensure that display area towards the spaced set between the one side and the second plane 12 of the second plane 12, is improved in display area 22 The uniformity of 22 display brightness.

Embodiment ten

The fourth aspect of the present invention provides a kind of electronic device, which includes under the screen in any of the above-described embodiment Optical fingerprint systems, the electronic device are specifically as follows liquid crystal display device, Electronic Paper, mobile phone, tablet computer, television set, pen Remember the electronic products such as this computer, Digital Frame, navigator, Fingerprint Lock or component.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " installation ", " phase Even ", " connection " should broadly understood, for example, it may be being fixedly connected, be also possible to indirectly connected through an intermediary, can be with It is the interaction relationship of the connection or two elements inside two elements.For the ordinary skill in the art, The specific meanings of the above terms in the present invention can be understood according to specific conditions.

In the description of the present invention, it is to be understood that, term " on ", "lower", "front", "rear", "vertical", "horizontal", The orientation or positional relationship of the instructions such as "top", "bottom", "inner", "outside" are to be based on the orientation or positional relationship shown in the drawings, only It is for the convenience of describing the present invention and simplifying the description, rather than to indicate or imply that signified device or element must have spy Fixed orientation is constructed and operated in a specific orientation, therefore is not considered as limiting the invention.In description of the invention In, the meaning of " plurality " is two or more, accurately specifically provide unless otherwise.

The description and claims of this application and term " first ", " second ", " third ", " in above-mentioned attached drawing The (if present)s such as four " are to be used to distinguish similar objects, without being used to describe a particular order or precedence order.It should manage The data that solution uses in this way are interchangeable under appropriate circumstances, so that embodiments herein described herein for example can be to remove Sequence other than those of illustrating or describe herein is implemented.In addition, term " includes " and " having " and theirs is any Deformation, it is intended that cover it is non-exclusive include, for example, containing the process, method of a series of steps or units, system, production Product or equipment those of are not necessarily limited to be clearly listed step or unit, but may include be not clearly listed or for this A little process, methods, the other step or units of product or equipment inherently.

Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution The range of scheme.

Claims

1. a kind of backlight module, for being bonded to form display module with liquid crystal display panel, it is characterised in that:

The backlight module includes first plane opposite with the liquid crystal display panel non-display area, and with the liquid crystal display panel The second opposite plane of display area, and first plane is vertically lower than second plane, so that the back Optical mode group forms the accommodation space for accommodating functional module group at first plane.

2. backlight module according to claim 1, which is characterized in that second plane close to first plane one End extends towards first plane and connect with first plane.

3. backlight module according to claim 1, which is characterized in that further include: light guide connector section, the light guide connector section First end be connected with first plane, the second end of the light guide connector section is connected with second plane, and described One end is vertically lower than the second end.

4. backlight module according to claim 3, which is characterized in that the light guide connector section is arcuate structure.

5. backlight module according to claim 1 to 4, which is characterized in that the backlight module include guide-lighting mould group and Light source board, the leaded light mould group are located in the corresponding region of second plane, and the light source board is located at first plane pair In the region answered.

6. -5 any backlight module according to claim 1, which is characterized in that further include: the functional module group, the function Energy mould group is arranged in the accommodation space.

7. -6 any backlight module according to claim 1, which is characterized in that the functional module group includes fingerprint recognition mould Group.

8. a kind of display module, which is characterized in that including liquid crystal display panel and backlight module, the backlight module includes and the liquid The first opposite plane of crystal panel non-display area, and second plane opposite with the liquid crystal display panel display area, it is described First plane is vertically lower than second plane, and has between first plane and the non-display area and use In the accommodation space for accommodating functional module group.

9. display module according to claim 8, which is characterized in that the non-display area is towards first plane With the display area towards second plane while it is concordant, and institute's backlight module is formed at first plane The accommodation space.

10. display module according to claim 8, which is characterized in that the non-display area is towards first plane Be positioned vertically higher than the display area towards second plane while, and the non-display area direction The accommodation space is collectively formed with first plane in the one side of first plane.

11. according to any display module of claim 8-10, which is characterized in that second plane is close to described first One end of plane extends towards first plane and connect with first plane.

12. according to any display module of claim 8-10, which is characterized in that further include: light guide connector section, it is described to lead The first end in light connects portion is connected with first plane, and the second end of the light guide connector section is connected with second plane, And the first end is vertically lower than the second end.

13. display module according to claim 12, which is characterized in that the light guide connector section is arcuate structure.

14. according to any display module of claim 8-13, which is characterized in that the backlight module includes guide-lighting mould group And light source board, the leaded light mould group are located in the corresponding region of second plane, the light source board is located at first plane In corresponding region.

15. according to any display module of claim 8-14, which is characterized in that further include: the functional module group, it is described Functional module group is arranged in the accommodation space.

16. according to any display module of claim 8-15, which is characterized in that the functional module group includes fingerprint recognition Mould group.

17. optical fingerprint systems under a kind of screen, applied to the electronic device with liquid crystal display panel and backlight module, feature exists In optical fingerprint systems include fingerprint detection light source and optical finger print identification mould group under the screen；The optical finger print identifies mould The lower section of non-display area of the group for the liquid crystal display panel to be arranged in, and it is located at the backlight module in the non-display area The accommodation space formed by design of sinking, and the fingerprint detection region of optical finger print identification mould group is at least partially disposed at The display area of the liquid crystal display panel；The fingerprint detection light source is used to send out to the fingerprint detection region for being located at the display area Detection light is penetrated, the detection light forms return light when being irradiated to the finger in the fingerprint detection region, and guides by optical path Structural transmission to the optical finger print for being located at the non-display area identifies mould group.

18. optical fingerprint systems under screen according to claim 17, which is characterized in that the backlight module include with it is described The first opposite plane of the non-display area of liquid crystal display panel, and second plane opposite with the liquid crystal display panel display area, First plane is vertically lower than second plane, between first plane and the non-display area Form the accommodation space.

19. optical fingerprint systems under screen according to claim 18, which is characterized in that the non-display area is described in First plane with the display area towards second plane while it is concordant, and institute's backlight module is described first The accommodation space is formed at plane.

20. optical fingerprint systems under screen according to claim 18, which is characterized in that the non-display area is described in First plane be positioned vertically higher than the display area towards second plane while, and it is described non-display The accommodation space is collectively formed with first plane in the one side of region towards first plane.

21. optical fingerprint systems under any screen of 8-20 according to claim 1, which is characterized in that second plane is leaned on One end of nearly first plane extends towards first plane and connect with first plane.

22. optical fingerprint systems under any screen of 8-20 according to claim 1, which is characterized in that further include: leaded light connection Portion, the first end of the light guide connector section are connected with first plane, the second end of the light guide connector section and described second Plane is connected, and the first end is vertically lower than the second end.

23. optical fingerprint systems under screen according to claim 22, which is characterized in that the light guide connector section is arc knot Structure.

24. optical fingerprint systems under any screen of 8-23 according to claim 1, which is characterized in that the backlight module packet Guide-lighting mould group and light source board are included, the leaded light mould group is located in the corresponding region of second plane, and the light source board is located at institute It states in the corresponding region of the first plane.

25. optical fingerprint systems under any screen of 8-24 according to claim 1, which is characterized in that the fingerprint detection light Source is the non-visible light source independently of the liquid crystal display panel and the backlight module.

26. a kind of electronic device, which is characterized in that including optical fingerprint systems under any screen of claim 17-25.