CN107273808A

CN107273808A - Display module

Info

Publication number: CN107273808A
Application number: CN201710356855.1A
Authority: CN
Inventors: 凌严; 朱虹
Original assignee: Shanghai Luoji Technology Co Ltd
Current assignee: Shanghai Oxi Technology Co Ltd; Shanghai Luoji Technology Co Ltd
Priority date: 2017-05-19
Filing date: 2017-05-19
Publication date: 2017-10-20

Abstract

A kind of display module, including：Protective layer；Light-emitting display panel, the light-emitting display panel is located at below the protective layer；There is at least local of the light-emitting display panel optical finger print to recognize structure, can realize optical finger print identification function；The display module also includes：Point-like backlight, the point-like backlight is located at below the protective layer and positioned at the light-emitting display panel side, and the light that the point-like backlight is sent enters the protective layer with angle obliquely.The display module integrated optics fingerprint identification function.

Description

Display module

Technical field

Field, more particularly to a kind of display module are recognized the present invention relates to optical finger print.

Background technology

Fingerprint imaging identification technology, is the fingerprint image that human body is collected by fingerprint sensor, then with system Existing fingerprint imaging information is compared, and whether carrys out correct judgment, and then realize the technology of identification.The side used due to it Just property, and somatic fingerprint uniqueness, fingerprint identification technology has been widely used in every field.Such as public security bureau, customs Etc. field of safety check, consumer product area such as the gate control system of building, and PC and mobile phone etc..

The implementation of fingerprint imaging identification technology has the multiple technologies such as optical imagery, capacitance imaging, ultrasonic imaging.Relatively For, optical finger print imaging technique, its imaging effect is relatively preferable, and equipment cost is relatively low.

In the prior art, the existing integrating fingerprint identification function in display module, but it is typically to use capacitance type fingerprint Recognition principle.More contents about integrating fingerprint identification function in display module refer to Publication No. CN106024833A's Chinese invention patent application.

The display module structure of existing integrating fingerprint identification function has much room for improvement, and performance has much room for improvement.

The content of the invention

The present invention solve the problem of be to provide a kind of display module, be better achieved fingerprint identification function is integrated in it is aobvious Show in module, so as to while display, obtain clearly fingerprint image.

To solve the above problems, the invention provides a kind of display module, including：Protective layer；Light-emitting display panel, institute Light-emitting display panel is stated below the protective layer；There is at least local of the light-emitting display panel optical finger print to know Other structure, can realize optical finger print identification function；The display module also includes：Point-like backlight, the point-like backlight Below the protective layer and positioned at the light-emitting display panel side, the light that the point-like backlight is sent is with oblique On angle enter the protective layer.

Optionally, the light-emitting display panel includes first substrate, second substrate and first substrate and second substrate Between self-luminescence circuit layer；The first substrate is transparent substrates, and the first substrate is located above the second substrate；Institute Stating self-luminescence circuit layer includes viewing area, and the viewing area includes multiple display pixel cells；The viewing area include one or The multiple optical finger print sensing areas of person；In the optical finger print sensing area, per m × n in a display pixel cells, k described Each of display pixel cells has at least one optical finger print sensing element, m and any one integer that n is more than 1, and k is 1 to m × n any one integer.

Optionally, the optical finger print sensing element is located at the second substrate upper surface, or positioned at first base Plate lower surface.

Optionally, the light-emitting display panel includes first substrate, second substrate and first substrate and second substrate Between self-luminescence circuit layer；The first substrate is transparent substrates, and the first substrate is located above the second substrate；Institute Stating self-luminescence circuit layer includes viewing area, and the viewing area includes multiple display pixel cells；The first substrate upper table bread Include one or more optical finger print sensing area above the viewing area；There is the optical finger print sensing area optics to refer to Line sensing element.

Optionally, in the optical finger print sensing area, in the region per m × n above a display pixel cells, k Each top of the display pixel cells has at least one optical finger print sensing element, and m and n are any one of more than 1 Integer, k is 1 to m × n any one integer.

Optionally, the optical finger print sensing element is located at the oblique upper of the display pixel cells.

Optionally, there is printing opacity glue, the printing opacity glue covers the point between the point-like backlight and the protective layer The portion lower surface of the exiting surface of shape backlight and the protective layer, the light that the point-like backlight is sent is carried on the back from the point-like The exiting surface of light source enters the printing opacity glue, then enters the protective layer from the printing opacity glue.

Optionally, at least part lower surface of the printing opacity glue has light-absorption layer.

Optionally, there is thickening layer, the protective layer lower surface between the light-emitting display panel and the protective layer With light shield layer, the light shield layer is adjacent with the printing opacity glue.

Optionally, there is collector lens, the collector lens can reduce institute before the exiting surface of the point-like backlight The light for stating point-like backlight enters the angle of divergence of the protective layer, and it is saturating that the light of the point-like backlight is introduced into the optically focused Mirror, enters back into the protective layer.

Optionally, the protective layer lower surface region relative with the point-like backlight also includes anti-reflection film, the increasing Permeable membrane can increase the light of the point-like backlight into the ratio of the protective layer.

Optionally, there is light guiding prism, the light that the point-like backlight is sent before the exiting surface of the point-like backlight Line enters the light guiding prism from the exiting surface of the point-like backlight, then enters the protective layer from the light guiding prism.

Optionally, the incidence surface of the light guiding prism is on the cambered surface towards the point-like backlight, the light guiding prism Surface is the plane parallel with the protective layer lower surface, and the lower surface of the light guiding prism is connection upper surface and incidence surface Inclined-plane.

Optionally, there is thickening layer, the light guiding prism enters between the light-emitting display panel and the protective layer Smooth surface is that, towards the inclined-plane of the point-like backlight, the light guiding prism upper surface is parallel with the protective layer lower surface Plane, the side of the light guiding prism is the plane parallel with thickening layer side, the upper surface of the light guiding prism with The protective layer lower surface is pasted, and the vertical side and the side of the thickening layer of the light guiding prism are pasted.

Optionally, there is thickening layer, the light guiding prism enters between the light-emitting display panel and the protective layer Smooth surface is the cambered surface towards the point-like backlight, and the light guiding prism upper surface is parallel with the protective layer lower surface Plane, the side of the light guiding prism is the plane parallel with thickening layer side, the upper surface of the light guiding prism with The protective layer lower surface is pasted, and the side of the light guiding prism and the side of the thickening layer are pasted.

Optionally, the lower surface of the light guiding prism has light-absorption layer.

Optionally, the protective layer lower surface has light shield layer, and the light shield layer is adjacent with the light guiding prism.

Optionally, there is thickening layer between the light-emitting display panel and the protective layer.

Optionally, the protective layer lower surface region relative with the point-like backlight is blocked layer covering, the point The light that shape backlight is sent enters the thickening layer from the side of the thickening layer, then enters the protection from the thickening layer Layer.

Optionally, the protective layer lower surface has light shield layer, the thickening layer side relative with the point-like backlight Face is that incline apex is adjacent with the light shield layer, the light that the point-like backlight is sent towards the inclined-plane of the point-like backlight Line enters the thickening layer from the inclined-plane of the thickening layer, then enters the protective layer from the thickening layer.

Optionally, the point-like backlight is a LED；Or, the point-like backlight is two or more LED.

Optionally, the point-like backlight is two or more LED, and described two above LEDs are evenly distributed on described The same side of light-emitting display panel.

Optionally, the light-emitting display panel includes more than two indicative of local optical induction regions, a LED One indicative of local optical induction region of correspondence；The display module also includes touch-control structure, and the touch-control structure includes two Local touch area above, one local touch area of indicative of local optical induction region correspondence.

Optionally, the light-emitting display panel includes the indicative of local optical induction region of more than three, the LED number Less than the number of the indicative of local optical induction region；The display module also includes touch-control structure, and the touch-control structure includes three Local touch area more than individual, one local touch area of indicative of local optical induction region correspondence.

Optionally, each multiple adjacent described indicative of local optical induction region of the LED correspondence；And adjacent two The corresponding indicative of local optical induction region part of the LED is identical.

Compared with prior art, technical scheme has advantages below：

In technical scheme, protective layer and light-emitting display panel are set from top to bottom.Wherein, the self-luminous There is at least local of display panel optical finger print to recognize structure, can realize optical finger print identification function.Meanwhile, display module Also have and be located at below the protective layer and positioned at the point-like backlight of the light-emitting display panel side, the point-like backlight The light that source is sent enters the protective layer with angle obliquely again.In this structure, the light that point-like backlight is sent is not Need, by light-emitting display panel, to be put into protective layer, at the contact interface of protective layer and finger, light has been carried out accordingly Reflection and the optical phenomena such as refraction, return again to light-emitting display panel, recognized and tie by the optical finger print of light-emitting display panel Structure is received, so that light-emitting display panel obtains corresponding fingerprint image, whole process is realized using display module Collection to finger fingerprint image, also, the fingerprint image collected is clear, display module is integrated with good fingerprint Identification function.

Meanwhile, the display module of this structure can when in use, by controlling light-emitting display panel that there is optics to refer to The viewing area of line identification structure stops showing work or shows specific picture in fingerprint image, and other regions then can be with The display information associated with fingerprint image acquisition work, so that display function and fingerprint identification function cooperate Get up, realize more preferable user experience.

Brief description of the drawings

Fig. 1 is the display module cross-sectional view that one embodiment of the invention is provided；

Fig. 2 is the schematic top plan view of light-emitting display panel in display module shown in Fig. 1；

Fig. 3 is the display module cross-sectional view that another embodiment of the present invention is provided；

Fig. 4 is the display module cross-sectional view that another embodiment of the present invention is provided；

Fig. 5 is the display module cross-sectional view that another embodiment of the present invention is provided；

Fig. 6 is the display module cross-sectional view that another embodiment of the present invention is provided；

Fig. 7 is the display module cross-sectional view that another embodiment of the present invention is provided；

Fig. 8 is the display module cross-sectional view that another embodiment of the present invention is provided；

Fig. 9 is the display module cross-sectional view that another embodiment of the present invention is provided；

Figure 10 is the display module cross-sectional view that another embodiment of the present invention is provided；

Figure 11 is the display module cross-sectional view that another embodiment of the present invention is provided；

Figure 12 is the display module present invention looks up structural representation that another embodiment of the present invention is provided；

Figure 13 is the display module present invention looks up structural representation that another embodiment of the present invention is provided.

Embodiment

As described in background, using the aobvious of capacitance type fingerprint imaging technique and light-emitting display panel more than prior art Show that module is carried out integrated.

Therefore, the present invention is provided in a kind of display module, optical fingerprint sensor is integrated in light-emitting display panel (specifically optical fingerprint sensor is integrated in together in light-emitting display panel), so that while display is realized, Neng Goushi Existing fingerprint identification function, also, pass through corresponding structure design so that display module can collect clearly fingerprint image, Realize that display function and fingerprint identification function cooperate so that user has more preferable usage experience to display module.

It is understandable to enable the above objects, features and advantages of the present invention to become apparent, below in conjunction with the accompanying drawings to the present invention Specific embodiment be described in detail.

In this specification, in addition to Figure 12 and Figure 13 partial content, the upper and lower relation in other contents, be with will display Module is placed on below eyes of user, and makes protective layer be located at the orientation of the top to be defined.If that is, Say that a structure is located at the top of another structure, then illustrate when display module is placed on below eyes of user and protective layer is located at During the top, this structure, closer to eyes of user, illustrates in this together than another structure.

The embodiment of the present invention provides a kind of display module, incorporated by reference to reference to Fig. 1 and Fig. 2.Fig. 1 illustrates for display module section Figure, Fig. 2 is the schematic top plan view of light-emitting display panel in display module.

Fig. 1 shows that the display module includes protective layer 110, light-emitting display panel 120 and point-like backlight 130.From Light emitting display panel 120 is located at the lower section of protective layer 110.At least local of light-emitting display panel 120 has optical finger print identification Structure, can realize optical finger print identification function.Point-like backlight 130 is located at the lower section of protective layer 110 and shown positioned at self-luminous The side of panel 120, the light that point-like backlight 130 is sent enters protective layer 110, the light such as Fig. 1 with angle obliquely In shown in arrow obliquely.Arrow in Fig. 1 obliquely then represents corresponding reflection light.For ease of display, each embodiment Each figure in, ignore refraction of the light between different optical medium structures, illustrate in this together.

Light-emitting display panel 120 includes first substrate 121, second substrate 122 and first substrate 121 and second substrate Self-luminescence circuit layer 123 between 122.First substrate 121 is transparent substrates, and first substrate 121 is located on second substrate 122 Side.

Self-luminescence circuit layer 123 includes viewing area (viewing area is not entirely shown), and the viewing area includes multiple display pictures Plain unit 1231.The present embodiment sets corresponding optical finger print identification structure in the viewing area of light-emitting display panel 120, from And light-emitting display panel 120 is realized optical finger print identification function.

Fig. 2 is refer to, Fig. 2 shows the plan structure of light-emitting display panel 120, light-emitting display panel 120 such as Fig. 2 In shown in big solid-line rectangle, then the viewing area of light-emitting display panel 120 must be located in this big solid-line rectangle.This implementation Example sets the viewing area to include the big dotted line of optical finger print sensing area 120a, optical finger print sensing area 120a in Fig. 2 Frame is surrounded, to highlight.

In the present embodiment, optical finger print sensing area 120a area is less than the area of the viewing area, i.e. optical finger print sense Survey a portion that area 120a is only the viewing area.

In other embodiments, when viewing area only includes an optical finger print sensing area, optical finger print can also be sensed The area in area and the area equation of viewing area, i.e., the whole viewing area region is also simultaneously the optical finger print sensing area Region.

In other embodiments, viewing area can also include multiple (two or more) optical finger print sensing areas.Now, each Optical finger print sensing area be viewing area a part, and the sum total of whole optical finger print sensing area can be the display Area, might be less that the viewing area.

Please continue to refer to Fig. 2, the viewing area is included where multiple display pixel cells 1231, display pixel cells 1231 The plan view shape of region is as shown in surrounding small dotted line frame in Fig. 2, and display pixel cells 1231 are generally in ranks (array) arrangement. Therefore, in optical finger print sensing area 120a, multiple display pixel cells 1231 that ranks are arranged equally also are included.Need explanation It is the display pixel cells 1231 in optical finger print sensing area 120a only to be shown in Fig. 2, without positioned at optical finger print sensing area Display pixel cells 1231 in 120a are not shown.

It is pointed out that in other embodiment, display pixel cells can also misplace in odd even row (column) and arrange, this When, on microcosmic, every three display pixel cells triangle at an acute angle (such as acute angle isosceles triangle, or equilateral triangle) Three zenithal alignments.In other embodiments, display pixel cells can also be other arrangement modes.

In Fig. 2, in optical finger print sensing area 120a, every 2 × 2 display pixel cells 1231, there are 2 display pixel lists Member 1231, which respectively has in 1 optical finger print sensing element 1232, Fig. 2, has selected one group 2 × 2 therein with small solid-line rectangle A frames Display pixel cells 1231 with strengthen display.

In the present embodiment, each optical finger print sensing element 1232 is specifically produced on 2 × 2 display pixel cells 1231 the first row, i.e., above 2.Optical finger print sensing element 1232 is photoelectric conversion device, for example, can be photoelectricity two Pole pipe etc..

The section schematic construction of light-emitting display panel 120 in Fig. 1 be in Fig. 2 light-emitting display panel 120 along B-B ' points Schematic construction after line cutting.And B-B ' chain-dotted lines are by these optical finger print sensing elements 1232 and its display picture at place Plain unit 1231, therefore, in Fig. 1 sees and an optical finger print sensing element is respectively provided with each display pixel cells 1231 1232.But in fact, in the present embodiment, the display pixel cells 1231 for there was only half in optical finger print sensing area 120a have light Learn fingerprint sensing element 1232.

In the present embodiment, each display pixel cells 1231 can be for single pixel structure, i.e. display pixel cells 1231 not Including sub-pixel.Now, optical finger print sensing element 1232 can be produced on the appropriate location of display pixel cells 1231.

In other embodiments, display pixel cells can also include multiple sub-pixels (such as three sub-pixels or four Individual sub-pixel), now optical finger print sensing element can be produced on the region beyond each sub-pixel, can also be produced on some In sub-pixel.

In other embodiments, in optical finger print sensing area, in every m × n display pixel cells, k display pixel cells Each there is at least one optical finger print sensing element, m and any one integer that n is more than 1, k appoint for 1 to m × n One integer of meaning.Embodiment illustrated in fig. 2 is that m and n is equal to the situation that 2, k is equal to 2.

Under the premise of above-mentioned, and when k is equal to 1 (per m × n in a display pixel cells, a display pixel Unit has at least one optical finger print sensing element), m and any one integer that n is more than 1.

In other embodiments, " the situation that m and n are 2 and k is 1 " can be selected.

In other embodiments, when in the optical finger print sensing area, per m × n in a display pixel cells, k institute State display pixel cells each there is at least one optical finger print sensing element in the case of, m and n can be further set In at least 1 be more than 1, and k be less than m × n.

Can be respectively provided with 1 optical finger print sensing element in each display pixel cells in other embodiments.Other realities Apply in example or be respectively provided with multiple (such as 2) optical finger print sensing elements in each display pixel cells.For example, the It is respectively provided with 4 optical finger print sensing elements in each display pixel cells of odd-numbered line, and each display pixel of even number line 2 optical finger print sensing elements are respectively provided with unit.

Can be that each display pixel cells include 3 sub-pixels, also, every 1 × 2 display picture in other embodiments In plain unit, there is 1 display pixel cells that there is 1 optical finger print sensing element.It is in other embodiments or each aobvious Show that pixel cell includes 3 sub-pixels, also, in every two neighboring display pixel cells of odd-numbered line, one of them Display pixel cells have 2 optical finger print sensing elements, and another display pixel cells has 1 optical finger print sensing Part.

In Fig. 2, in optical finger print sensing area 120a, the distance between adjacent optical fingerprint sensing element 1232 can be 30 μm~100 μm.Because the lines spacing of somatic fingerprint is general at 200 μm or so, too intensive optical finger print sensing element 1232 Without actual benefit.When gathering fingerprint image, there are two important requirements：One is the resolution for gathering image, i.e., described The distance between adjacent optical fingerprint sensing element 1232 can not be too big in optical finger print sensing area 120a；Another is collection face Product is sufficiently large, that is, needs to gather the fingerprint image of certain area, so as to obtain enough finger print informations.So adjacent optical The distance between fingerprint sensing element 1232 be 30 μm~100 μm just can be with.If the distance between they are too big, fingerprint image As resolution is inadequate, it is impossible to for fingerprint recognition.If the distance between they are smaller, although image analytic degree can be more preferable, but It is that the effect of actual fingerprint recognition will not be had clear improvement.And because Pixel Dimensions reduce, gather the finger of same area During print image, the data volume of fingerprint image can increase, so that image acquisition time increase, the optical finger print sensing area 120a Collection power consumption increase, can also make it that the time of follow-up image procossing is elongated.

Turning back to Fig. 1 is referred to, optical finger print sensing element 1232 is located at the upper surface of second substrate 122, i.e. the present embodiment will Optical finger print sensing element 1232 is produced on the upper surface of second substrate 122.

Fig. 1 shows that light-emitting display panel 120 can also include sealing structure (not marking).Sealing structure also is located at Between one substrate 121 and second substrate 122.Sealing structure is together with first substrate 121 and second substrate 122, by spontaneous photoelectricity Road floor 123 is sealed between first substrate 121 and second substrate 122.First substrate 121 is transparent substrates, therefore its specific material Material can be other plastic products beyond unorganic glass or lucite or lucite.Second substrate 122 Material selection range can be bigger, can select light transmissive material or alternatively non-transparent material.

Turning back to referring to Fig. 1, it is shown that the self-luminescence circuit layer 123 in light-emitting display panel 120 includes multiple displays Pixel cell 1231.It is similar with Fig. 2, the region of display pixel cells 1231 is illustrated in Fig. 1 with dotted line frame, and each shows Show the neighbouring relations of pixel cell 1231, meanwhile, in Fig. 1 section, each display pixel cells 1231 are respectively provided with an optics Fingerprint sensing element 1232.It is to be appreciated that light-emitting display panel 120, which is included, does not include the display of optical finger print sensing element Pixel cell 1231.

It is noted that dotted line frame includes part first substrate 121 and second substrate 122 in Fig. 1, but this is intended merely to just In display, the region of display pixel cells 1231 does not include first substrate 121 and second substrate 122 generally.It is a number of other The cross-section structure of embodiment uses identical dotted line frame display mode, illustrates in this together.

In the present embodiment, light-emitting display panel 120 can be OLED display panel, now self-luminescence circuit layer 123 Display pixel cells 1231 can include anode layer, hole injection layer (HIL), luminescent layer (EML), electron injecting layer (EIL) and The structures such as cathode layer, can also have hole transmission layer (HTL) and electron transfer layer (ETL), can also include driving OLED's TFT, the driving structure such as metal wire and storage capacitance.The principle of luminosity of OLED display panel is：Under certain voltage driving, electronics Luminescent layer is moved to from cathode layer and anode layer respectively with hole, and is met in luminescent layer, exciton is formed and makes light emitting molecule Excite, light emitting molecule sends visible ray (or other light) by radiative relaxation.

Point-like backlight 130 can be a LED.The light of the LED can be black light, purple light, blueness Light, green light, sodium yellow, red light, near infrared light or white light.Point-like backlight 130 can also be two or more LED, LED is evenly distributed on the different sides of light-emitting display panel 120.

Protective layer 110 can be tlat substrate, or the other shapes with flat part.The material of protective layer 110 Can be transparent material, specific material can be other beyond unorganic glass or lucite or lucite Plastic products.

Light-emitting display panel 120 can be located at immediately below protective layer 110, and can directly be laminated in protective layer 110 lower surfaces, i.e. both directly contacts, are directly laminated.In the case of other, light-emitting display panel 120 can also pass through optics Glue is in the lower surface of protective layer 110.Using optics glue, can cause protective layer 110 and light-emitting display panel 120 it Between avoid the presence of air, further improve module optical property.

As shown in figure 1, can have interval (not mark between point-like backlight 130 and the side of light-emitting display panel 120 Note), by adjusting the size at this interval, the light of point-like backlight 130 can be adjusted to the incidence angle of the lower surface of protective layer 110 Degree.

In other embodiments, can also set point-like backlight and light-emitting display panel side directly contact without between Every.

As shown in figure 1, there can be interval (not marking) between point-like backlight 130 and the lower surface of protective layer 110, pass through The size at this interval is adjusted, the light of point-like backlight 130 can be equally adjusted to the incident angle of the lower surface of protective layer 110.

In embodiment, point-like backlight and protective layer lower surface can also be set directly to contact.

In the present embodiment, the light that point-like backlight 130 is sent enters protective layer 110 obliquely, reaches protective layer 110 Behind upper surface, the optical phenomena such as reflection and refraction occurs for the interface that can be formed in finger print and the upper surface of protective layer 110, Produce corresponding reflection light；Reflection light returns to protective layer 110 obliquely, and reaches self-luminous through protective layer 110 and show Show that the optical finger print sensing element 1232 in panel 120, and shown pixel cell 1231 is received, so as to realize fingerprint image As collection, fingerprint identification function is realized.

Point-like backlight 130 is arranged on the lower section of protective layer 110 by the present embodiment, and is provided in light-emitting display panel 120 sides.On the premise of point-like backlight 130 is located at the side of light-emitting display panel 120, point-like backlight 130 is set again The light sent enters protective layer 110 with angle obliquely, now, and the light that point-like backlight 130 is sent need not pass through certainly Light emitting display panel 120 has been put into protective layer 110, so that the collection for finger print image, that is, realize to finger print The collection of image, the utilization rate of respective ray of light is improved, and improves the letter that final optics fingerprint sensing element 1232 can be received Number amount, the fingerprint image that collects is clear, and therefore, display module is integrated with good fingerprint identification function.

This implementation does not increase any structure, now, whole display module between point-like backlight 130 and protective layer 110 It is simple in construction, manufacture craft is simple.

For the area source of existing use light guide plate, point-like backlight 130 enables to light along same side To skew, apart from the position of point-like backlight 130, close light offset is close, and light angle difference is small, it is to avoid light it Between interfere and influence each other, therefore, the light that point-like backlight 130 enters protective layer 110 is final basic with close Angle enters light-emitting display panel 120, so that the fingerprint image distortion gathered is smaller, fingerprint image is clearer (can access clearly fingerprint image), improves the fingerprint image quality that display module is collected, and improves the fingerprint of module Recognition performance.

In the display module that the embodiment of the present invention is provided, it can be realized by corresponding application method in display module Viewing area in gather fingerprint image, so as to reduce the electronic product apparent size using this display panel, improve The screen accounting of electronic product, improving the appearance looks elegant degree of electronic product (can for example improve the screen accounting of mobile phone productses, improve hand The appearance looks elegant degree of machine product).For example, the optical finger print sensing area 120a in the light-emitting display panel 120 is defined as First viewing area, the viewing area of other parts is defined as the second viewing area；When optical finger print sensing element 1232 is carried out When fingerprint image acquisition works, first viewing area is controlled to stop showing work or show specific picture.Work as optical finger print When sensing element 1232 carries out fingerprint image acquisition work, control second viewing area to show with fingerprint image acquisition and work Associated information.This application method enables to display function and fingerprint identification function to cooperate, and realizes more preferable User experience.

The application method can also further open up the application scenarios of fingerprint identification function, for example, in optical finger print sense Survey before element 1232 is not operated, make first viewing area show and show icon accordingly, instruction user is by finger It is put into icon.After user places a digit into display figure target area, using existing display panel itself or tyre Touch controllable function, perceives user and has placed a digit into the first viewing area, so as to control optical finger print sensing element 1232 enter working condition, now, and the fingerprint image of pressing fingerprint can be by the optical finger print sensing below the first viewing area Part 1232 is gathered, and fingerprint image acquisition function is completed, and it is possible to further apply to the existing fingerprint image with internal reservoir It is identified, further with the function such as being encrypted/unlock.

Another embodiment of the present invention provides another display module, refer to Fig. 3.

The display module includes protective layer 210, light-emitting display panel 220 and point-like backlight 230.Self-luminous is shown Panel 220 is located at the lower section of protective layer 210.There is at least local of light-emitting display panel 220 optical finger print to recognize structure, can Realize optical finger print identification function.Point-like backlight 230 is located at the lower section of protective layer 210, and point-like backlight 230 is located at self-luminous The side of display panel 220, the light that point-like backlight 230 is sent enters protective layer 210 with angle obliquely, and the light is such as Shown in arrow in Fig. 3 obliquely.Arrow in Fig. 3 obliquely then represents corresponding reflection light.

Light-emitting display panel 220 includes first substrate 221, second substrate 222 and first substrate 221 and second substrate Self-luminescence circuit layer 223 between 222.First substrate 221 is transparent substrates, and first substrate 221 is located on second substrate 222 Side；Self-luminescence circuit layer 223 includes viewing area (being not entirely shown), and the viewing area includes multiple display pixel cells, such as Fig. 3 In show some display pixel cells 2231 therein.The viewing area can include one or more optical finger print sensing Area.In the optical finger print sensing area, per in m × n display pixel cells, each of k display pixel cells has extremely Few 1 optical finger print sensing element, m and any one integer that n is more than 1, k is 1 to m × n any one integer.As schemed Show that each display pixel cells 2231 are respectively provided with optical finger print sensing element 2232 in 3.Because the viewing area is included accordingly Optical finger print sensing area, and optical finger print sensing area has the structures such as optical finger print sensing element, therefore, self-luminous display surface Plate 220 can realize optical finger print identification function, refer to previous embodiment corresponding contents.

In the present embodiment, optical finger print sensing element 2232 is located at the lower surface of first substrate 121, i.e. the present embodiment by optics Fingerprint sensing element 2232 is produced on the lower surface of first substrate 121.

As shown in figure 3, there is printing opacity glue 240 between point-like backlight 230 and protective layer 210, the covering point of printing opacity glue 240 The exiting surface of shape backlight 230 and the portion lower surface of protective layer 210, the light that point-like backlight 230 is sent is from point-like backlight The exiting surface in source enters printing opacity glue 240, then enters protective layer 210 from printing opacity glue 240.

When in the absence of printing opacity glue, the light that point-like backlight is sent usually requires to enter back into protection by air ambient The phenomenons such as reflection can occur for layer, this time, cause entry into the reduction of the light of protective layer, and light enters back into protection from air Layer has obvious refraction effect, and the irradiated area that refraction can reduce incident light (can be contrasted with reference in Fig. 1 and Fig. 3, Fig. 1 Irradiated area is obviously smaller than in Fig. 3 light irradiated area on surface on the protection layer to light on surface on the protection layer).And pass through Increase printing opacity glue 240, light is needed not move through air, increase incident light quantity, meanwhile, the refractive index of printing opacity glue 240 and protection The refractive index of layer 210 is typically more approached, it is thus possible to increase (increase is vertical for the irradiated area on incident light surface on the protection layer To depth), so as to increase fingerprint imaging area.

As shown in figure 3, the lower surface of printing opacity glue 240 has light-absorption layer 250.Printing opacity glue 240 it is usual some directly cover To point-like backlight 230 (capped generally includes the exiting surface of point-like backlight 230), printing opacity glue 240 is covered positioned at it The surface of the lower section of point-like backlight 230 belong to the lower surface of printing opacity glue 240.Point-like backlight 230 is usually LED, LED The emergent light angle of lamp is larger, has part light and is irradiated to the lower surface of printing opacity glue 240 obliquely.This part light can be in printing opacity glue 240 lower surface occurs reflection and scattered, and regenerates the secondary ray that oblique upper enters protective layer 210.But these are secondary Light already belongs to veiling glare, and if the original light directly obliquely into protective layer 210 have an intersection, fingerprint image Imaging can misplace, i.e., fingerprint image can be caused to be interfered and fog.So, pass through the lower surface increase in printing opacity glue 240 Light-absorption layer 250, eliminates these veiling glares, so as to further improve fingerprint image quality.In other embodiments, if fingerprint image Requirement has been reached, the light-absorption layer of printing opacity glue lower surface can also be omitted.

It is accordingly interior that more structures, property and advantage for providing display module about the present embodiment refer to previous embodiment Hold.

Another embodiment of the present invention provides another display module, refer to Fig. 4.

The display module includes protective layer 310, light-emitting display panel 320 and point-like backlight 330.Self-luminous is shown Panel 320 is located at the lower section of protective layer 310.There is at least local of light-emitting display panel 320 optical finger print to recognize structure, can Realize optical finger print identification function.Point-like backlight 330 is located at the lower section of protective layer 310, and point-like backlight 330 is located at self-luminous The side of display panel 320, the light that point-like backlight 330 is sent enters protective layer 310 with angle obliquely, and the light is such as Shown in arrow in Fig. 4 obliquely.Arrow in Fig. 4 obliquely then represents corresponding reflection light.

Light-emitting display panel includes first substrate 321, second substrate 322 and first substrate 321 and second substrate 322 Between self-luminescence circuit layer 323.First substrate 321 is transparent substrates, and first substrate 321 is located at the top of second substrate 322.From Illuminating circuit layer 323 includes viewing area, and viewing area includes multiple display pixel cells, shows in such as Fig. 4 therein some aobvious Show pixel cell 3231.

From unlike previous embodiment, optical finger print sensing element is arranged at the upper table of first substrate 321 by the present embodiment Face.

Specifically, the upper surface of first substrate 321 includes being located at one or more optical finger print sensing above viewing area Area.The optical finger print sensing area has optical finger print sensing element.Also, this implementation continues to set per m × n display pixel In the region of the top of unit 3231, each top of k display pixel cells 3231 has at least one optical finger print sensing Part, m and n are more than 1 any one integer, and k is 1 to m × n any one integer.As shown each display pixel in Fig. 4 The top of unit 3231 is respectively provided with an optical finger print sensing element 3232.Because the upper surface of first substrate 321 has corresponding light Fingerprint sensing area is learned, and optical finger print sensing area has the structures such as optical finger print sensing element, therefore, light-emitting display panel 320 can realize optical finger print identification function, refer to previous embodiment corresponding contents.

In the present embodiment, each optical finger print sensing element 3232 is also especially set to be located at the oblique of display pixel cells 3231 Top.So as to prevent optical finger print sensing element 3232 from blocking the effective display area domain (opening of each display pixel cells 3231 Area).But in other embodiments, when the area of optical finger print sensing element 3232 is obviously smaller than display pixel cells 3231, The position of optical finger print sensing element 3232 can more more options, even if optical finger print sensing element 3232 be located at open region just on Side, also has substantially no effect on the normal display of display pixel cells 3231.

It should be noted that on the premise of optical finger print sensing element 3232 is arranged at into the upper surface of first substrate 321, In other embodiments, the layout designs of optical finger print sensing area and optical finger print sensing element 3232 can have other more shapes Formula, present invention contrast is not construed as limiting.

As shown in figure 4, having collector lens 340 before the exiting surface of point-like backlight 330, collector lens 340 can subtract The light of small point-like backlight 330 enters the angle of divergence of protective layer 310, and the light of point-like backlight 330 is introduced into collector lens 340, enter back into protective layer 310.Now collector lens 340 reaches the function of improving light utilization, realizes raising image letter The effect of number intensity.And if as collector lens 340 is used, when accordingly can be using power relatively low point-like backlight 330, So collector lens 340 then serves the effect of reduction module power consumption.

As shown in figure 4, the lower surface of protective layer 310 region relative with point-like backlight 330 (this subregion that is, protection 310 lower surface of layer are used for the region for receiving incident light) also include anti-reflection film 350, anti-reflection film 350 can increase point-like backlight Light enters the ratio of protective layer 310.Fingerprint image matter can further be improved by improving the ratio of light into protective layer 310 Amount, further improves the Fingerprint recognition ability of display module.

Another embodiment of the present invention provides another display module, refer to Fig. 5.

The display module includes protective layer 410, light-emitting display panel 420 and point-like backlight 430.Self-luminous is shown Panel 420 is located at the lower section of protective layer 410.There is light-emitting display panel 420 optical finger print to recognize structure, can realize that optics refers to Line identification function.Point-like backlight 430 is located at the lower section of protective layer 410, and point-like backlight 430 is located at light-emitting display panel 420 sides, the light that point-like backlight 430 is sent is entered in protective layer 410, the light such as Fig. 5 tiltedly with angle obliquely Shown in upward arrow.Arrow in Fig. 5 obliquely then represents corresponding reflection light.

Light-emitting display panel 420 includes first substrate 421, second substrate 422 and first substrate 421 and second substrate Self-luminescence circuit layer 423 between 422.First substrate 421 is transparent substrates, and first substrate 421 is located on second substrate 422 Side；Self-luminescence circuit layer 423 includes viewing area (being not entirely shown), and the viewing area includes multiple display pixel cells, such as Fig. 5 In show some display pixel cells 4231 therein.The viewing area can include one or more optical finger print sensing Area.In the optical finger print sensing area, per in m × n display pixel cells, each of k display pixel cells has extremely Few 1 optical finger print sensing element, m and any one integer that n is more than 1, k is 1 to m × n any one integer.As schemed Show that each display pixel cells 4231 are respectively provided with an optical finger print sensing element 4232 in 5.Because the viewing area includes Corresponding optical finger print sensing area, and optical finger print sensing area has the structures such as optical finger print sensing element, therefore, self-luminous shows Show that panel 420 can realize optical finger print identification function, refer to previous embodiment corresponding contents.

As shown in figure 5, having light guiding prism 440, the light that point-like backlight is sent before the exiting surface of point-like backlight 430 Line enters light guiding prism 440 from the exiting surface of point-like backlight 430, then enters protective layer 410 from light guiding prism 440.

Light guiding prism 440 is that (its three-dimensional shape is triangular prism shaped to right angled triangle, with not in the section shown in Fig. 5 The end face shown in Figure 5).Wherein, triangle wherein while the vertical side of correspondence light guiding prism 440, vertical side is made For the incidence surface of light guiding prism 440, light enters light guiding prism 440 from incidence surface.Hypotenuse correspondence light guiding prism 440 Lower surface, be oblique lower surface in the present embodiment.

In other embodiments, light guiding prism can also be other shapes.

It can be pasted between light guiding prism 440 and protective layer 410 using optical cement (not shown).

The effect of light guiding prism 440 is similar with printing opacity glue shown in Fig. 3 240, that is, reduces the folding of the emergent light of point-like backlight 430 Penetrate so that the protective layer upper surface area that point-like backlight 430 can irradiate is bigger, i.e., the area for obtaining finger print image Domain is bigger.

As shown in figure 5, the lower surface of light guiding prism 440 has in light-absorption layer 450, the action principle and Fig. 3 of light-absorption layer 450 The action principle of light-absorption layer 250 is identical, i.e., can eliminate corresponding veiling glare.In other embodiments, if fingerprint image is Requirement is reached, the light-absorption layer of light guiding prism lower surface can also be omitted.

Another embodiment of the present invention provides another display module, refer to Fig. 6.

The display module includes protective layer 510, light-emitting display panel 520 and point-like backlight 530.Self-luminous is shown Panel 520 is located at the lower section of protective layer 510.There is light-emitting display panel 520 optical finger print to recognize structure, can realize that optics refers to Line identification function.Point-like backlight 530 is located at the lower section of protective layer 510, and point-like backlight 530 is located at light-emitting display panel 520 sides, the light that point-like backlight 530 is sent is entered in protective layer 510, the light such as Fig. 6 tiltedly with angle obliquely Shown in upward arrow.Arrow in Fig. 6 obliquely then represents corresponding reflection light.

Light-emitting display panel 520 includes first substrate 521, second substrate 522 and first substrate 521 and second substrate Self-luminescence circuit layer 523 between 522.First substrate 521 is transparent substrates, and first substrate 521 is located on second substrate 522 Side；Self-luminescence circuit layer 523 includes viewing area (being not entirely shown), and the viewing area includes multiple display pixel cells, such as Fig. 6 In show some display pixel cells 5231 therein.The viewing area can include one or more optical finger print sensing Area.In the optical finger print sensing area, per in m × n display pixel cells, each of k display pixel cells has extremely Few 1 optical finger print sensing element, m and any one integer that n is more than 1, k is 1 to m × n any one integer.As schemed Show that each display pixel cells 5231 are respectively provided with an optical finger print sensing element 5232 in 6.Because the viewing area includes Corresponding optical finger print sensing area, and optical finger print sensing area has the structures such as optical finger print sensing element, therefore, self-luminous shows Show that panel 520 can realize optical finger print identification function, refer to previous embodiment corresponding contents.

As shown in fig. 6, having light guiding prism 540, the light that point-like backlight is sent before the exiting surface of point-like backlight 530 Line enters light guiding prism 540 from the exiting surface of point-like backlight 530, then enters protective layer 510 from light guiding prism 540.

Light guiding prism 540 reduces the refraction of the emergent light of point-like backlight 530 so that what point-like backlight 530 can irradiate Protective layer upper surface area is bigger.

As shown in fig. 6, the incidence surface of light guiding prism 540 is the cambered surface towards backlight 530, the cambered surface can be cylinder Side or sphere, such as in Fig. 6 by taking cylindrical side as an example.The upper surface of light guiding prism 540 is and the lower surface phase of protective layer 510 Parallel plane, the lower surface of light guiding prism 540 is connection upper surface and the inclined-plane of incidence surface.

Because the incidence surface of light guiding prism 540 is the cambered surface towards backlight 530, therefore, the display module compared to Fig. 5 For, in the display module in Fig. 6, light can be more converged using cambered surface, reduces the diverging that light enters protective layer 510 Angle, further improves the light utilization of point-like backlight 530.

As shown in fig. 6, the lower surface of light guiding prism 540 has a light-absorption layer 550, the action principle of light-absorption layer 550 also with Fig. 3 The action principle of middle light-absorption layer 250 is identical, i.e., can eliminate corresponding veiling glare.In other embodiments, if fingerprint image is Through reaching requirement, the light-absorption layer of light guiding prism lower surface can also be omitted.

Another embodiment of the present invention provides another display module, refer to Fig. 7.

The display module includes protective layer 610, light-emitting display panel 620 and point-like backlight 630.Self-luminous is shown Panel 620 is located at the lower section of protective layer 610.There is at least local of light-emitting display panel 620 optical finger print to recognize structure, can Realize optical finger print identification function.Point-like backlight 630 is located at the lower section of protective layer 610, and point-like backlight 630 is located at self-luminous The side of display panel 620, the light that point-like backlight 630 is sent enters protective layer 610 with angle obliquely, and the light is such as Shown in arrow in Fig. 7 obliquely.Arrow in Fig. 7 obliquely then represents corresponding reflection light.

Light-emitting display panel 620 includes first substrate 621, second substrate 622 and first substrate 621 and second substrate Self-luminescence circuit layer 623 between 622.First substrate 621 is transparent substrates, and first substrate 621 is located on second substrate 622 Side；Self-luminescence circuit layer 623 includes viewing area (being not entirely shown), and the viewing area includes multiple display pixel cells, such as Fig. 7 In show some display pixel cells 6231 therein.The viewing area can include one or more optical finger print sensing Area.In the optical finger print sensing area, per in m × n display pixel cells, each of k display pixel cells has extremely Few 1 optical finger print sensing element, m and any one integer that n is more than 1, k is 1 to m × n any one integer.As schemed Show that each display pixel cells 6231 are respectively provided with an optical finger print sensing element 6232 in 7.Because the viewing area includes Corresponding optical finger print sensing area, and optical finger print sensing area has the structures such as optical finger print sensing element, therefore, self-luminous shows Show that panel 620 can realize optical finger print identification function, refer to previous embodiment corresponding contents.

As shown in fig. 7, also having printing opacity glue 640 between point-like backlight 630 and protective layer 610, printing opacity glue 640 is covered The exiting surface of point-like backlight 630 and the portion lower surface of protective layer 610, the light that point-like backlight 630 is sent are carried on the back from point-like The exiting surface of light source enters printing opacity glue 640, then enters protective layer 610 from printing opacity glue 640.

As shown in fig. 7, the lower surface of printing opacity glue 640 has light-absorption layer 670.Light-absorption layer in the effect of light-absorption layer 670 and Fig. 3 250 effect is identical, refers to previous embodiment corresponding contents.In other embodiments, if fingerprint image has reached requirement, The light-absorption layer of printing opacity glue lower surface can also be omitted.

As shown in fig. 7, also having thickening layer 650 between light-emitting display panel 620 and protective layer 610.650 layers of thickening layer It is laminated between light-emitting display panel 620 and protective layer 610.

As shown in fig. 7, the lower surface of protective layer 610 has light shield layer 660, light shield layer 660 is adjacent with printing opacity glue 640, printing opacity Glue 640 is except adjacent with light shield layer 660, the also side with thickening layer 650 and the side phase of part light-emitting display panel 620 It is adjacent.

By increasing thickening layer 650 between light-emitting display panel 620 and protective layer 610, so as to add into guarantor The incident angle range (side of thickening layer 650 can also incident ray) of the light of sheath 610, so as to make protective layer 610 receive the width increase of ray regions, and then can improve the fingerprint image quality of display module collection.

By setting light shield layer 660, it can prevent other light from entering protective layer from the lower surface of protective layer 610, further It is favorably improved the fingerprint recognition performance of module.

In Fig. 7, the light that point-like backlight 630 is sent point two parts enter protective layer 610：A part is from printing opacity glue 640 After passing through, then from the lower surface of protective layer 610 enter protective layer 610；Another part is then after printing opacity glue 640 is passed through, into thickening The side of layer 650, is entering protective layer 610 through after thickening layer 650, then from the lower surface of protective layer 610.

Another embodiment of the present invention provides another display module, refer to Fig. 8.

The display module includes protective layer 710, light-emitting display panel 720 and point-like backlight 730.Self-luminous is shown There is panel 720 optical finger print to recognize structure, can realize optical finger print identification function.Light-emitting display panel 720, which is located at, to be protected The lower section of sheath 710.Point-like backlight 730 is located at the lower section of protective layer 710, and point-like backlight 730 is located at light-emitting display panel 720 sides, the light that point-like backlight 730 is sent is entered in protective layer 710, the light such as Fig. 8 tiltedly with angle obliquely Shown in upward arrow.Arrow in Fig. 8 obliquely then represents corresponding reflection light.

Light-emitting display panel 720 includes first substrate 721, second substrate 722 and first substrate 721 and second substrate Self-luminescence circuit layer 723 between 722.First substrate 721 is transparent substrates, and first substrate 721 is located on second substrate 722 Side；Self-luminescence circuit layer 723 includes viewing area (being not entirely shown), and the viewing area includes multiple display pixel cells, such as Fig. 8 In show some display pixel cells 7231 therein.The viewing area can include one or more optical finger print sensing Area.In the optical finger print sensing area, per in m × n display pixel cells, each of k display pixel cells has extremely Few 1 optical finger print sensing element, m and any one integer that n is more than 1, k is 1 to m × n any one integer.As schemed Show that each display pixel cells 7231 are respectively provided with an optical finger print sensing element 7232 in 8.Because the viewing area includes Corresponding optical finger print sensing area, and optical finger print sensing area has the structures such as optical finger print sensing element, therefore, self-luminous shows Show that panel 720 can realize optical finger print identification function, refer to previous embodiment corresponding contents.

There is light guiding prism 740, the light that point-like backlight 730 is sent is from point before the exiting surface of point-like backlight 730 The exiting surface of shape backlight 730 enters light guiding prism 740, then enters protective layer 710 from light guiding prism 740.

There is thickening layer 750, the incidence surface of light guiding prism 740 is (not between light-emitting display panel 720 and protective layer 710 Mark) it is that, towards the inclined-plane of point-like backlight 730, the upper surface of light guiding prism 740 is put down for parallel with the lower surface of protective layer 710 Face, the side of light guiding prism 740 is the plane parallel with the side of thickening layer 750, the upper surface of light guiding prism 740 and protective layer 710 lower surfaces are pasted, and the vertical side and the side of thickening layer 750 of light guiding prism 740 are pasted.The upper surface of light guiding prism 740 Optics glue can be passed through between the lower surface of protective layer 710.The vertical side and the side of thickening layer 750 of light guiding prism 740 Optics glue can also be passed through between face.

The lower surface of protective layer 710 has light shield layer 760, and light shield layer 760 is adjacent with light guiding prism 740.Pass through light shield layer 760, it can fully ensure that the light of point-like backlight 730 into protective layer 710 first passes through light guiding prism 740, meanwhile, Light shield layer 760 can also reduce other light and enter protective layer.It is accordingly interior that the effect of light guiding prism 740 refers to previous embodiment Hold.

As shown in figure 8, the incline apex of light guiding prism 740 is adjacent with light shield layer 760, the vertical side of light guiding prism 740 It is also simultaneously adjacent with the surface of light-emitting display panel 720.

In Fig. 8, the light that point-like backlight 730 is sent point two parts enter protective layer 710：A part is from light guiding prism After 740 pass through, then from the lower surface of protective layer 710 enter protective layer 710；Another part then after light guiding prism 740 is passed through, enters The side of thickening layer 750, is entering protective layer 710 through after thickening layer 750, then from the lower surface of protective layer 710.

Another embodiment of the present invention provides another display module, refer to Fig. 9.

The display module includes protective layer 810, light-emitting display panel 820 and point-like backlight 830.Self-luminous is shown Panel 820 is located at the lower section of protective layer 810.There is light-emitting display panel 820 optical finger print to recognize structure, can realize that optics refers to Line identification function.Point-like backlight 830 is located at the lower section of protective layer 810, and point-like backlight 830 is located at light-emitting display panel 820 sides, the light that point-like backlight 830 is sent is entered in protective layer 810, the light such as Fig. 9 tiltedly with angle obliquely Shown in upward arrow.Arrow in Fig. 9 obliquely then represents corresponding reflection light.

Light-emitting display panel 820 includes first substrate 821, second substrate 822 and first substrate 821 and second substrate Self-luminescence circuit layer 823 between 822.First substrate 821 is transparent substrates, and first substrate 821 is located on second substrate 822 Side；Self-luminescence circuit layer 823 includes viewing area (being not entirely shown), and the viewing area includes multiple display pixel cells, such as Fig. 9 In show some display pixel cells 8231 therein.The viewing area can include one or more optical finger print sensing Area.In the optical finger print sensing area, per in m × n display pixel cells, each of k display pixel cells has extremely Few 1 optical finger print sensing element, m and any one integer that n is more than 1, k is 1 to m × n any one integer.As schemed Show that each display pixel cells 8231 are respectively provided with an optical finger print sensing element 8232 in 9.Because the viewing area includes Corresponding optical finger print sensing area, and optical finger print sensing area has the structures such as optical finger print sensing element, therefore, self-luminous shows Show that panel 820 can realize optical finger print identification function, refer to previous embodiment corresponding contents.

There is light guiding prism 840, the light that point-like backlight 830 is sent is from point before the exiting surface of point-like backlight 830 The exiting surface of shape backlight 830 enters light guiding prism 840, then enters protective layer 810 from light guiding prism 840.

There is thickening layer 850, the incidence surface of light guiding prism 840 is (not between light-emitting display panel 820 and protective layer 810 Mark) for towards the cambered surface of point-like backlight 830, the upper surface of light guiding prism 840 is put down for parallel with the lower surface of protective layer 810 Face, the side of light guiding prism 840 is the plane parallel with the side of thickening layer 850, the upper surface of light guiding prism 840 and protective layer 810 lower surfaces are pasted, and the vertical side and the side of thickening layer 850 of light guiding prism 840 are pasted.

Because the incidence surface of light guiding prism 840 is cambered surface, light guiding prism 840 also has the effect of convergence light, makes light More concentrate, reduce the angle of divergence of entrance protective layer 810 of incident light, more contribute to the identification of finger print.

It can pass through optics glue between the upper surface of light guiding prism 840 and the lower surface of protective layer 810.Light guiding prism It can also pass through optics glue between 840 vertical side and the side of thickening layer 850.

The lower surface of protective layer 810 has light shield layer 860, and light shield layer 860 is adjacent with light guiding prism 840.Pass through light shield layer 860, it can fully ensure that the light of point-like backlight 830 into protective layer 810 first passes through light guiding prism 840, meanwhile, Light shield layer 860 can also reduce other light into protective layer 810.The effect of light guiding prism 840 refers to previous embodiment phase Answer content.

Another embodiment of the present invention provides another display module, refer to Figure 10.

The display module includes protective layer 910, light-emitting display panel 920 and point-like backlight 930.Self-luminous is shown Panel 920 is located at the lower section of protective layer 910.There is light-emitting display panel 920 optical finger print to recognize structure, can realize that optics refers to Line identification function.Point-like backlight 930 is located at the lower section of protective layer 910, and point-like backlight 930 is located at light-emitting display panel 920 sides, the light that point-like backlight 930 is sent is entered in protective layer 910, the light such as Figure 10 tiltedly with angle obliquely Shown in upward arrow.Arrow in Figure 10 obliquely then represents corresponding reflection light.

Light-emitting display panel 920 includes first substrate 921, second substrate 922 and first substrate 921 and second substrate Self-luminescence circuit layer 923 between 922.First substrate 921 is transparent substrates, and first substrate 921 is located on second substrate 922 Side；Self-luminescence circuit layer 923 includes viewing area (being not entirely shown), and the viewing area includes multiple display pixel cells, such as schemes Some display pixel cells 9231 therein are shown in 10.The viewing area can include one or more optical finger print sense Survey area.In the optical finger print sensing area, per in m × n display pixel cells, each of k display pixel cells has At least one optical finger print sensing element, m and n are more than 1 any one integer, and k is 1 to m × n any one integer.Such as Show that each display pixel cells 9231 are respectively provided with an optical finger print sensing element 9232 in Figure 10.Due to viewing area bag Corresponding optical finger print sensing area is included, and optical finger print sensing area has the structures such as optical finger print sensing element, therefore, self-luminous Display panel 920 can realize optical finger print identification function, refer to previous embodiment corresponding contents.

There is thickening layer 940 between light-emitting display panel 920 and protective layer 910.Meanwhile, the lower surface of protective layer 910 with The relative region of point-like backlight 930 is blocked layer 950 and covered, and the light that point-like backlight 930 is sent is from the side of thickening layer 940 Face enters thickening layer 940, then enters protective layer 910 from thickening layer 940.

The lower surface of protective layer 910 region relative with point-like backlight 930 is completely covered by light shield layer 950, and controlled The conditions such as the exit positions and rising angle of point-like backlight 930, the present embodiment causes the point-like backlight into protective layer 910 930 light are entirely to enter from the side of thickening layer 940, and now, these light angles are more consistent, and propagation path is also more It is unified, gathered fingerprint image quality is favorably improved, that is, is favorably improved the fingerprint recognition performance of module.

Another embodiment of the present invention provides another display module, refer to Figure 11.

The display module includes protective layer 1010, light-emitting display panel 1020 and point-like backlight 1030.Self-luminous Display panel 1020 is located at the lower section of protective layer 1010.There is light-emitting display panel 1020 optical finger print to recognize structure, Neng Goushi Existing optical finger print identification function.Point-like backlight 1030 is located at the lower section of protective layer 1010, and point-like backlight 1030 is positioned at spontaneous The side of light display panel 1020, the light that point-like backlight 1030 is sent enters protective layer 1010 with angle obliquely, described Light is as shown in the arrow in Figure 11 obliquely.Arrow in Figure 11 obliquely then represents corresponding reflection light.

Light-emitting display panel 1020 includes first substrate 1021, second substrate 1022 and first substrate 1021 and second Self-luminescence circuit layer 1023 between substrate 1022.First substrate 1021 is transparent substrates, and first substrate 1021 is located at the second base The top of plate 1022；Self-luminescence circuit layer 1023 includes viewing area (being not entirely shown), and the viewing area includes multiple display pixels Some display pixel cells 10231 therein are shown in unit, such as Figure 11.The viewing area can include one or more Optical finger print sensing area.In the optical finger print sensing area, per m × n display pixel cells in, k display pixel cells Each has at least one optical finger print sensing element, m and any one integer that n is more than 1, k for 1 to m × n it is any One integer.As shown that each display pixel cells 10231 are respectively provided with an optical finger print sensing element 10232 in Figure 11.By Include corresponding optical finger print sensing area in the viewing area, and optical finger print sensing area has the knot such as optical finger print sensing element Structure, therefore, light-emitting display panel 1020 can realize optical finger print identification function, refer to previous embodiment corresponding contents.

There is thickening layer 1040 between light-emitting display panel 1020 and protective layer 1010.Meanwhile, the following table of protective layer 1010 Face has light shield layer 1050, and the side relative with point-like backlight 1030 of thickening layer 1040 is towards the oblique of point-like backlight 1030 Face, incline apex is adjacent with the light shield layer, as shown in figure 11.Under this configuration, can by controlling point-like backlight 1030 So that the light that sends of point-like backlight 1030 enters thickening layer 1040 from the side of thickening layer 1040, then from thickening layer 1040 Into protective layer 1010.

The lower surface of protective layer 1010 region relative with point-like backlight 1030 is completely covered by light shield layer 1050, equally Pass through the control of point-like backlight 1030, it is ensured that the light of point-like backlight 1030 for entering protective layer 1010 is from thickening layer What 1040 sides entered, equally make to be that these light angles are more consistent, propagation path is also more unified, and is favorably improved and is adopted The fingerprint image quality of collection, that is, be favorably improved the fingerprint recognition performance of module.

Relative to Figure 10 embodiments, in Figure 11 embodiments, the side of thickening layer 1040 is in inclined-plane, therefore, works as thickening layer When 1040 skew back face is as incidence surface, the light of the point-like backlight 1030 of greater angle scope can pass through thickening layer 1040 Skew back face enters protective layer 1010, it is possible to increase irradiated area (increase fingerprint of the incident light in the upper surface of protective layer 1010 Imaging width), so as to increase fingerprint imaging area.

Another embodiment of the present invention provides another display module, refer to Figure 12.It is different from Fig. 1 to Figure 11, Figure 12 Schematic diagram, i.e. Figure 12 are look up in order to show the structure below protective layer, it is shown that from protective layer following table surface upwardly The schematic diagram that direction is seen, in such manner, it is possible to see the structures such as corresponding point-like backlight, light-emitting display panel and protective layer.Cause This, the cross-section structure of structure shown in Figure 12 may be referred to Fig. 1 to Figure 11, in turn, and structure shown in Fig. 1 to Figure 11 looks up structure It may be referred to Figure 12.

Looked up shown in Figure 12 in structure：Display module includes protective layer 1110, light-emitting display panel 1120 and the point-like back of the body Light source 1130, protective layer 1110 is located at bottom, and the top of protective layer 1110 is light-emitting display panel 1120, point-like backlight 1130 are similarly positioned in the top of protective layer 1110, and point-like backlight 1130 is located at the side of light-emitting display panel 1120.

When carrying out cutting to the structure of looking up shown in Figure 12, and when being put by Fig. 1 to Figure 11, it will also be seen that In the display module that the present embodiment is provided：Light-emitting display panel 1120 is located at the lower section of protective layer 1110；Self-luminous display surface There is plate 1120 optical finger print to recognize structure, can realize optical finger print identification function；Point-like backlight 1130 is located at protective layer 1110 lower sections, and point-like backlight 1130 is located at the side of light-emitting display panel 1120, the light that point-like backlight 1130 is sent Protective layer 1110 is entered with angle obliquely.

Light-emitting display panel 1120 include first substrate (not shown), second substrate (not shown) and first substrate and Self-luminescence circuit layer (not shown) between second substrate.First substrate is transparent substrates, and first substrate is located on second substrate Side；The rectangular area that self-luminescence circuit layer includes mark light-emitting display panel 1120 in viewing area, Figure 12 includes viewing area institute In region.The viewing area includes multiple display pixel cells (not shown).The viewing area can include one or more Optical finger print sensing area.In the optical finger print sensing area, per m × n display pixel cells in, k display pixel cells Each has at least one optical finger print sensing element, m and any one integer that n is more than 1, k for 1 to m × n it is any One integer.Because the viewing area includes corresponding optical finger print sensing area, and optical finger print sensing area has optical finger print The structures such as sensing element, therefore, light-emitting display panel 1120 can realize optical finger print identification function, refer to foregoing implementation Example corresponding contents.

As shown in figure 12, point-like backlight 1130 is four LEDs (not differentiating between mark) in the present embodiment, described in four LED is evenly distributed on the same side of light-emitting display panel 1120.The correspondence of light-emitting display panel 1120 includes four Indicative of local optical induction region 1121.

Indicative of local optical induction region is (to be not excluded for former dividing mode, i.e., to repartitioning for the optical finger print sensing area It there may be the situation of indicative of local optical induction region one optical finger print sensing area of correspondence).Also, work as only one of which During the optical finger print sensing area, each usual indicative of local optical induction region is the various pieces area of the optical finger print sensing area Domain.

In plane shown in Figure 12, four offices of light-emitting display panel 1120 are shown using four adjacent dotted line frames The optical finger print sensing area is divided into four indicative of local optical induction regions by portion optical sensor region 1121, i.e. the present embodiment 1121.One LED one indicative of local optical induction region 1121 of correspondence.Meanwhile, though do not shown in Figure 12, display module Also include touch-control structure, the touch-control structure includes the local touch area of four, 1121 pairs of an indicative of local optical induction region Answer a local touch area (meanwhile, a local touch area also corresponds to an indicative of local optical induction region 1121).In figure In bottom plan shown in 12, if local touch area is shown, corresponding part touch area and indicative of local optical sense Region 1121 is answered to be completely superposed.

By said structure, in the display module that the present embodiment is provided, it is possible to use a LED is used as a part The light source in optical sensor region 1121, meanwhile, judge finger is contacted in which specific office using corresponding local touch area Portion touch area, and then control corresponding indicative of local optical induction region 1121 and LED to be operated, realize to finger fingerprint image The collection of picture.In this mode, due to only using some LED therein and some indicative of local optical induction region every time 1121, it therefore, there is no need to while using whole LEDs, it is not required that whole light-emitting display panel 1120 all carries out fingerprint and adopted Collection, not only increases the picking rate of fingerprint image, and reduce power consumption.

It should be noted that above-mentioned touch-control structure can be capacitance type touch-control structure, capacitance type touch-control structure can be position (protective layer lower surface is for example fitted or is produced on, in another example laminating or making between protective layer and light-emitting display panel In light-emitting display panel upper surface), capacitance type touch-control structure can also be integrated in inside light-emitting display panel.

In other embodiments, point-like backlight can also be two, three or more than five LEDs, and these LEDs are equal The even same side for being distributed in light-emitting display panel 1120.Accordingly, indicative of local optical induction region and local touch area Number is equal with the number of LED, and specific corresponding to mode is also to correspond.Refer to above-mentioned corresponding contents.

In other embodiment, each indicative of local optical induction region may correspond to multiple local touch areas, so as to carry The precision of the position of high detection finger pressing, improves the degree of accuracy of positioning finger pressing.

Another embodiment of the present invention provides another display module, refer to Figure 13.It is different from Fig. 1 to Figure 11, Figure 13 Schematic diagram, i.e. Figure 13 are look up in order to show the structure below protective layer, it is shown that from protective layer following table surface upwardly The schematic diagram that direction is seen, in such manner, it is possible to see the structures such as corresponding point-like backlight, light-emitting display panel and protective layer.Cause This, the cross-section structure of structure shown in Figure 13 may be referred to Fig. 1 to Figure 11, in turn, and structure shown in Fig. 1 to Figure 11 looks up structure It may be referred to Figure 13.

Looked up shown in Figure 13 in structure：Display module includes protective layer 1210, light-emitting display panel 1220 and the point-like back of the body Light source (point-like backlight is not marked individually, and point-like backlight includes follow-up six LEDs), protective layer 1210 is located at bottom, The top of protective layer 1210 is light-emitting display panel 1220, and the point-like backlight is similarly positioned in the top of protective layer 1210, and The point-like backlight is located at the side of light-emitting display panel 1220.

When carrying out cutting to the structure of looking up shown in Figure 13, and when being put by Fig. 1 to Figure 11, it will also be seen that In the display module that the present embodiment is provided：Light-emitting display panel 1220 is located at the lower section of protective layer 1210；Self-luminous display surface There is plate 1220 optical finger print to recognize structure, can realize optical finger print identification function；The point-like backlight is located at protective layer 1210 lower sections, and the point-like backlight is located at the side of light-emitting display panel 1220, the light that the point-like backlight is sent Protective layer 1210 is entered with angle obliquely.

Light-emitting display panel 1220 include first substrate (not shown), second substrate (not shown) and first substrate and Self-luminescence circuit layer (not shown) between second substrate.First substrate is transparent substrates, and first substrate is located on second substrate Side；The rectangular area that self-luminescence circuit layer includes mark light-emitting display panel 1220 in viewing area, Figure 13 includes viewing area institute In region.The viewing area includes multiple display pixel cells (not shown).The viewing area can include one or more Optical finger print sensing area.In the optical finger print sensing area, per m × n display pixel cells in, k display pixel cells Each has at least one optical finger print sensing element, m and any one integer that n is more than 1, k for 1 to m × n it is any One integer.Because the viewing area includes corresponding optical finger print sensing area, and optical finger print sensing area has optical finger print The structures such as sensing element, therefore, light-emitting display panel 1220 can realize optical finger print identification function, refer to foregoing implementation Example corresponding contents.

As shown in figure 13, point-like backlight described in the present embodiment is six LEDs, respectively LED a, LED b, LED c, LED d, LED e and LED f, six LEDs are evenly distributed on the same side of light-emitting display panel 1220.

And the correspondence of light-emitting display panel 1220 includes 14 indicative of local optical induction regions, respectively indicative of local optical senses Region 1-14.In plane shown in Figure 13, using 14 adjacent dotted line frames by the light of light-emitting display panel 1220 Learn fingerprint sensing and divide into 14 indicative of local optical induction regions.One LED four indicative of local optical induction region of correspondence.

With Figure 12 identicals, Tu13Zhong, indicative of local optical induction region is that the optical finger print sensing area is repartitioned (it is not excluded for former dividing mode, it is possible to there is the corresponding optical finger print sensing area of an indicative of local optical induction region Situation).Also, when optical finger print sensing area described in only one of which, each usual indicative of local optical induction region is the optics The various pieces region in fingerprint sensing area.

In plane shown in Figure 13, the optical finger print of light-emitting display panel 1220 is sensed using 13 dotted lines Divide into 14 indicative of local optical induction regions.One LED four indicative of local optical induction region of correspondence.Meanwhile, though in Figure 13 Do not show, still, display module also includes touch-control structure, and the touch-control structure includes the local touch area of 14, one Indicative of local optical induction region correspondence one local touch area, i.e. indicative of local optical induction region and a pair of local touch area 1 Should.In the bottom plan shown in Figure 13, if local touch area is shown, corresponding part touch area and part Optical sensor region is completely superposed.The working condition of correspondence indicative of local optical induction region can be controlled using local touch area (switching for example worked with the two states of inoperative), refers to previous embodiment corresponding contents.Pass through said structure, this reality Apply in the display module that example is provided, LED number is less than the number of the indicative of local optical induction region, multiple indicative of local optical senses Region one LED of correspondence is answered, each multiple adjacent indicative of local optical induction region of the LED correspondence, and adjacent two The corresponding indicative of local optical induction region part of the individual LED is identical.

Specifically, in the present embodiment, LED a correspondence indicative of local optical induction region 1-4, LED b correspondence indicative of local optical senses Answer region 3-6, LED c correspondence indicative of local optical induction region 5-8, LED d correspondence indicative of local optical induction region 7-10, LED e Correspondence indicative of local optical induction region 9-12, LED f correspondence indicative of local optical induction region 11-14.LED a to LED f correspondences area The width in domain is as shown in Ra to Rf in Figure 13, and these width can prove that above-mentioned LED is corresponding with indicative of local optical induction region The continuous four indicative of local optical induction region of LED correspondence of relation, i.e., one.Now, using adjacent LED a and LED b as Example, their corresponding described indicative of local optical induction region parts are identical, i.e., they all correspond to indicative of local optical induction region 3-4.Together When, " part is identical " illustrates that each of which also corresponds to different indicative of local optical induction regions, such as LED a correspondence indicative of local optical Induction region 1-2, LED b correspondence indicative of local optical induction region 5-6.

The present embodiment why so that said structure and region be correspondingly arranged, be because can by the image-forming principle of the present invention Know：Display module can only use a LED is luminous (to be had if two LEDs are used simultaneously in fingerprint imaging, every time Interference, makes image blur)；And if part phase is not present in the corresponding indicative of local optical induction region of two adjacent LEDs lamp Meanwhile, if finger is pressed against the boundary of two indicative of local optical induction regions, usually require to be imaged twice, acquisition Different partial fingerprint images, then they are synthesized together.But, the present embodiment is by setting more multiple LEDs, so as to subtract Distance between small LED.Meanwhile, by further segmenting indicative of local optical induction region, increase the number of indicative of local optical induction region Mesh, so as to reach：Multiple adjacent indicative of local optical induction region one LED of correspondence, and two adjacent LED correspondences The indicative of local optical induction region part it is identical.Now, according to finger pressing position, only need to open and finger pressing every time The immediate LED in position carries out fingerprint image acquisition, and total energy utilizes some most suitable LED and then fingerprint image Collection, it is Polaroid with regard to corresponding fingerprint image can be collected therefore, it is possible to realize.Therefore, collecting efficiency is further increased And collection effect.

In order to which above-mentioned purpose is better achieved, the spacing between LED can also be made wide much smaller than the pressing covering of finger Spend (can for example make LED is smaller than 5mm).

Have each embodiment of this specification mutually can replacing and being complementary to one another part more.Although present disclosure is as above, The present invention is not limited to this.Any those skilled in the art, without departing from the spirit and scope of the present invention, can make various Change with changing, therefore protection scope of the present invention should be defined by claim limited range.

Claims

1. a kind of display module, including：

Protective layer；

Light-emitting display panel, the light-emitting display panel is located at below the protective layer；

Characterized in that,

There is at least local of the light-emitting display panel optical finger print to recognize structure, can realize that optical finger print recognizes work( Energy；

The display module also includes：

Point-like backlight, the point-like backlight is located at below the protective layer and positioned at the light-emitting display panel side, The light that the point-like backlight is sent enters the protective layer with angle obliquely.

2. display module as claimed in claim 1, it is characterised in that the light-emitting display panel includes first substrate, the Self-luminescence circuit layer between two substrates and first substrate and second substrate；The first substrate is transparent substrates, described the One substrate is located above the second substrate；The self-luminescence circuit layer includes viewing area, and the viewing area includes multiple displays Pixel cell；The viewing area includes one or more optical finger print sensing area；In the optical finger print sensing area, per m × n In the individual display pixel cells, each of the k display pixel cells has at least one optical finger print sensing element, m With any one integer that n is more than 1, k is 1 to m × n any one integer.

3. display module as claimed in claim 2, it is characterised in that the optical finger print sensing element is located at second base Plate upper surface, or positioned at the first substrate lower surface.

4. display module as claimed in claim 1, it is characterised in that the light-emitting display panel includes first substrate, the Self-luminescence circuit layer between two substrates and first substrate and second substrate；The first substrate is transparent substrates, described the One substrate is located above the second substrate；The self-luminescence circuit layer includes viewing area, and the viewing area includes multiple displays Pixel cell；The first substrate upper surface includes being located at one or more optical finger print sensing above the viewing area Area；The optical finger print sensing area has optical finger print sensing element.

5. display module as claimed in claim 4, it is characterised in that in the optical finger print sensing area, individual described per m × n In region above display pixel cells, each top of the k display pixel cells has at least one optical finger print sense Element, m and any one integer that n is more than 1 are surveyed, k is 1 to m × n any one integer.

6. display module as claimed in claim 5, it is characterised in that the optical finger print sensing element is located at the display picture The oblique upper of plain unit.

7. display module as claimed in claim 1, it is characterised in that have between the point-like backlight and the protective layer Printing opacity glue, the printing opacity glue covers the exiting surface of the point-like backlight and the portion lower surface of the protective layer, the point-like The light that backlight is sent enters the printing opacity glue from the exiting surface of the point-like backlight, then enters described from the printing opacity glue Protective layer.

8. display module as claimed in claim 7, it is characterised in that at least part lower surface of the printing opacity glue has extinction Layer.

9. display module as claimed in claim 7, it is characterised in that between the light-emitting display panel and the protective layer With thickening layer, the protective layer lower surface has light shield layer, and the light shield layer is adjacent with the printing opacity glue.

10. display module as claimed in claim 1, it is characterised in that have before the exiting surface of the point-like backlight poly- Optical lens, the collector lens can reduce the light of the point-like backlight into the angle of divergence of the protective layer, the point The light of shape backlight is introduced into the collector lens, enters back into the protective layer.

11. display module as claimed in claim 10, it is characterised in that the protective layer lower surface and the point-like backlight Relative region also includes anti-reflection film, and the light that the anti-reflection film can increase the point-like backlight enters the protective layer Ratio.

12. display module as claimed in claim 1, it is characterised in that have before the exiting surface of the point-like backlight and lead Light prism, the light that the point-like backlight is sent enters the light guiding prism from the exiting surface of the point-like backlight, then from The light guiding prism enters the protective layer.

13. display module as claimed in claim 12, it is characterised in that the incidence surface of the light guiding prism is towards the point The cambered surface of shape backlight, the light guiding prism upper surface is the plane parallel with the protective layer lower surface, the guide-lighting rib The lower surface of mirror is connection upper surface and the inclined-plane of incidence surface.

14. display module as claimed in claim 12, it is characterised in that the light-emitting display panel and the protective layer it Between there is thickening layer, the incidence surface of the light guiding prism is towards the inclined-plane of the point-like backlight, the light guiding prism upper table Face is the plane parallel with the protective layer lower surface, and the side of the light guiding prism is parallel with thickening layer side Plane, the upper surface of the light guiding prism and the protective layer lower surface paste, the vertical side of the light guiding prism and institute Paste the side for stating thickening layer.

15. display module as claimed in claim 12, it is characterised in that the light-emitting display panel and the protective layer it Between there is thickening layer, the incidence surface of the light guiding prism is the cambered surface towards the point-like backlight, the light guiding prism upper table Face is the plane parallel with the protective layer lower surface, and the side of the light guiding prism is parallel with thickening layer side Plane, the upper surface of the light guiding prism and the protective layer lower surface paste, and the side of the light guiding prism and described increases Paste the side of thick-layer.

16. display module as claimed in claim 12, it is characterised in that the lower surface of the light guiding prism has light-absorption layer.

17. display module as claimed in claim 16, it is characterised in that the protective layer lower surface has light shield layer, described Light shield layer is adjacent with the light guiding prism.

18. display module as claimed in claim 1, it is characterised in that the light-emitting display panel and the protective layer it Between have thickening layer.

19. display module as claimed in claim 18, it is characterised in that the protective layer lower surface and the point-like backlight Relative region is blocked layer covering, and the light that the point-like backlight is sent is thickened from the side of the thickening layer described in Layer, then enter the protective layer from the thickening layer.

20. display module as claimed in claim 19, it is characterised in that the protective layer lower surface has light shield layer, described The thickening layer side relative with the point-like backlight is towards the inclined-plane of the point-like backlight, incline apex and the shading Layer is adjacent, and the light that the point-like backlight is sent enters the thickening layer from the inclined-plane of the thickening layer, then is thickened from described Layer enters the protective layer.

21. the display module as described in claim 1 to 20 any one, it is characterised in that the point-like backlight is one LED；Or, the point-like backlight is two or more LED.

22. the display module as described in claim 1 to 20 any one, it is characterised in that the point-like backlight is two Above LED, described two above LEDs are evenly distributed on the same side of the light-emitting display panel.

23. display module as claimed in claim 22, it is characterised in that the light-emitting display panel includes more than two Indicative of local optical induction region, one indicative of local optical induction region of a LED correspondence；The display module also includes Touch-control structure, the touch-control structure includes more than two local touch areas, an indicative of local optical induction region correspondence One local touch area.

24. display module as claimed in claim 22, it is characterised in that the light-emitting display panel includes more than three Indicative of local optical induction region, the LED number is less than the number of the indicative of local optical induction region；The display module is also wrapped Touch-control structure is included, the touch-control structure includes the local touch area of more than three, an indicative of local optical induction region pair Answer a local touch area.

25. display module as claimed in claim 24, it is characterised in that each described multiple adjacent institute of LED correspondence State indicative of local optical induction region；And the corresponding indicative of local optical induction region part of adjacent two LEDs is identical.