CN113641021A

CN113641021A - Display device and electronic apparatus

Info

Publication number: CN113641021A
Application number: CN202010346709.2A
Authority: CN
Inventors: 袁泽; 林源城
Original assignee: Shenzhen Royole Technologies Co Ltd
Current assignee: Shenzhen Royole Technologies Co Ltd; Royole Corp
Priority date: 2020-04-27
Filing date: 2020-04-27
Publication date: 2021-11-12

Abstract

The application provides display device (1), electronic equipment, wherein display device (1) is including apron (10), display layer (20), fingerprint module (30) and collimation layer (40). One side of apron (10) is located in display layer (20) and fingerprint module (30), and fingerprint module (30) are equipped with collimation piece (41) including the collimation piece (41) that a plurality of intervals set up, collimation layer (40) including a plurality of intervals setting between two adjacent sensitization units (31) including sensitization unit (31) of a plurality of intervals setting. The problem of deviation appears in counterpoint when this application can avoid collimation piece (41) and sensitization unit (31) to set up from top to bottom, improves the counterpoint precision of collimation piece (41) and sensitization unit (31), still can reduce display device (1) holistic thickness.

Description

Display device and electronic apparatus

Technical Field

The application belongs to the technical field of electronic products, and particularly relates to a display device and electronic equipment.

Background

With the continuous development of electronic devices, the electronic devices are favored by users due to their portability and rich and varied operability. But at the same time, the expectations and requirements of users for electronic devices are also increasing. For example, currently, in order to only demand a higher screen duty ratio, the fingerprint module is usually disposed below the display module. But light and received light that the fingerprint module sent all will pass whole fingerprint module like this to influence fingerprint imaging quality. Therefore someone adds the collimation layer in display module assembly, thereby utilizes the collimation layer to come to restrict the light path and improve fingerprint imaging quality. However, the alignment layer itself and the alignment requirements between the alignment member, the photosensitive unit and the light-emitting unit are high, and the alignment layer increases the thickness of the display device.

Disclosure of Invention

In view of this, a first aspect of the present application provides a display device, which includes a cover plate, a display layer, a fingerprint module, and a collimating layer; the display layer with the fingerprint module is located one side of apron, the fingerprint module includes the sensitization unit that a plurality of intervals set up, the collimation layer includes the collimation piece that a plurality of intervals set up, adjacent two be equipped with between the sensitization unit the collimation piece, the collimation piece can absorb the transmission extremely light on the collimation piece.

The display device that this application first aspect provided, at first through addding the collimation layer, the collimation piece that utilizes a plurality of intervals to set up in the collimation layer comes to restrict the light path to improve fingerprint imaging quality. The application makes two adjacent be equipped with between the sensitization unit its time the collimation piece. Therefore, the problem of deviation in alignment of the alignment piece and the photosensitive unit when the alignment piece and the photosensitive unit are vertically arranged can be avoided, and the alignment precision of the alignment piece and the photosensitive unit is improved. The thickness of the entire display device can be reduced.

A second aspect of the present application provides an electronic apparatus, which includes a housing, a motherboard, and a display device as provided in the first aspect of the present application, wherein the housing is used for installing the display device and the motherboard, and the display device is electrically connected to the motherboard.

The electronic equipment that this application second aspect provided through adopting the display device that this application first aspect provided, can effectively improve fingerprint imaging quality, reduces the thickness of electronic equipment complete machine.

Drawings

In order to more clearly explain the technical solution in the embodiments of the present application, the drawings that are required to be used in the embodiments of the present application will be described below.

Fig. 1 is a schematic cross-sectional view of a display device according to an embodiment of the present disclosure.

Fig. 2 is a schematic cross-sectional view of a display device according to another embodiment of the present disclosure.

Fig. 3 is a schematic cross-sectional view of a display device according to still another embodiment of the present application.

Fig. 4 is a schematic cross-sectional view of a display device according to still another embodiment of the present application.

Fig. 5 is a schematic cross-sectional view of a display device according to still another embodiment of the present application.

Fig. 6 is a schematic cross-sectional view of a display device according to still another embodiment of the present application.

Fig. 7 is a schematic cross-sectional view of a display device according to still another embodiment of the present application.

Fig. 8 is a schematic cross-sectional view of a display device according to still another embodiment of the present application.

Fig. 9 is a schematic cross-sectional view of a display device according to still another embodiment of the present application.

Fig. 10 is a schematic cross-sectional view of a display device according to still another embodiment of the present application.

Fig. 11 is a schematic cross-sectional view of a display device according to still another embodiment of the present application.

Fig. 12 is a partial schematic view of a display device according to still another embodiment of the present disclosure.

Fig. 13 is a partial schematic view of a display device according to still another embodiment of the present disclosure.

Fig. 14 is a partial schematic view of a display device according to still another embodiment of the present disclosure.

Fig. 15 is a partial schematic view of a display device according to still another embodiment of the present application.

Fig. 16 is a partial schematic view of a display device according to still another embodiment of the present application.

Fig. 17 is a partial schematic view of a display device according to still another embodiment of the present application.

Fig. 18 is a partial schematic view of a display device according to still another embodiment of the present application.

Fig. 19 is a schematic cross-sectional view of a display device according to still another embodiment of the present application.

Fig. 20 is a schematic cross-sectional view of a display device according to still another embodiment of the present application.

Description of reference numerals:

display device-1, cover plate-10, touch control layer-11, polarizer-12, display layer-20, light-emitting unit-21, bottom plate-22, red light-emitting unit-23, green light-emitting unit-24, blue light-emitting unit-25, display drive pixel circuit layer-26, fingerprint module-30, light-sensitive unit-31, substrate-32, light-sensitive part-33, fingerprint pixel drive part-34, sub-light-sensitive part-35, collimation layer-40, collimation piece-41, first end-42, second end-43, shading piece-50, drive circuit layer-60, substrate-61, light-emitting region-611, light-sensitive region-612, grid electrode-62, grid electrode insulation layer-63, active layer-64, source electrode-65, the pixel structure comprises a drain electrode-650, an insulating layer-66, a flat layer-67, a pixel electrode layer-68, a first through hole-71, a second through hole-72, a third through hole-73 and a reflector-80.

Detailed Description

The following is a preferred embodiment of the present application, and it should be noted that, for those skilled in the art, several improvements and modifications can be made without departing from the principle of the present application, and these improvements and modifications are also considered as the protection scope of the present application.

Referring to fig. 1, fig. 1 is a schematic cross-sectional view of a display device according to an embodiment of the present disclosure. The present embodiment provides a display device 1, the display device 1 includes a cover plate 10, a display layer 20, a fingerprint module 30, and a collimation layer 40. The display layer 20 and the fingerprint module 30 are disposed on one side of the cover plate 10. Fingerprint module 30 includes the sensitization unit 31 that a plurality of intervals set up, collimation layer 40 includes the collimation piece 41 that a plurality of intervals set up, adjacent two be equipped with between the sensitization unit 31 collimation piece 41, collimation piece 41 can absorb the transmission extremely light on the collimation piece 41.

The Display device 1 provided in the present application generally includes a Display device 1 mainly including a Liquid Crystal Display (LCD) and a Display device 1 mainly including an Organic Light-Emitting Diode (OLED). The cover plate 10 provided herein is used to protect other structural members in the display device 1. Alternatively, the cover plate 10 may be a glass cover plate 10.

The display layer 20 provided in the present application is a structure that functions to emit light in the display device 1. The light emitting layer includes a plurality of light emitting units 21 arranged at intervals, wherein the light emitting units 21 include a red light emitting unit 23, a green light emitting unit 24, and a blue light emitting unit 25. The light emitting layer forms various other colors by emitting three primary colors. Optionally, the luminescent layer further comprises a backplane 22, the backplane 22 carrying a plurality of light emitting units 21.

The fingerprint module 30 that this application provided is used for detecting the fingerprint when user touch cover board 10 to come to carry out functions such as fingerprint verification or mobile payment. The fingerprint module 30 includes a plurality of photosensitive units 31, and the light-emitting unit 21 is used for emitting light, and when the emitting light is transmitted to an object on the touch cover, the emitting light is reflected to form a reflection light, and the reflection light is transmitted to the photosensitive units 31 and received by the photosensitive units 31. Optionally, the fingerprint module 30 further includes a substrate 32, and the substrate 32 carries the photosensitive unit 31.

The collimating layer 40 provided by the present application comprises a plurality of collimating elements 41 arranged at intervals, wherein the collimating elements 41 absorb light rays transmitted to the collimating elements 41. Optionally, the color of the collimating element 41 is black. Alternatively, the collimating element 41 may be a black material compatible with yellow light supports, such that an entire layer of the collimating layer 40 is formed first, and then a plurality of spaced-apart collimating elements 41 are formed by patterning the collimating layer 40. Further alternatively, the material of the collimator 41 may be black Polyimide (PI).

According to the application, firstly, the collimating layer 40 is additionally arranged in the display device 1, and the light path is limited by the collimating parts 41 arranged at intervals in the collimating layer 40, so that the fingerprint imaging quality is improved. Secondly, this application sets up collimation layer 40 and fingerprint module 30 with the layer even the collimation piece 41 sets up with sensitization unit 31 with the layer to make adjacent two be equipped with between the sensitization unit 31 collimation piece 41. It is also understood that the collimating member 41 is provided between the adjacent two photosensitive units 31 so as to achieve accurate alignment in the up-down direction (height direction) as in fig. 1. Or it can be understood that two adjacent collimating elements 41 form a receiving space with the substrate 32, and the photosensitive unit 31 is disposed in the receiving space. That is, the orthographic projection of the collimator 41 on the base material 32 is not overlapped with the orthographic projection of the photosensitive unit 31 on the base material 32, so that the problems of diffraction and the like are avoided, and the fingerprint imaging quality is improved. In addition, the alignment member 41 and the photosensitive unit 31 are disposed on the same layer, so that the problem of increased thickness when the alignment member 41 is disposed on one side of the photosensitive unit 31 (for example, the alignment member 41 is disposed between the fingerprint module 30 and the display layer 20) can be avoided, thereby reducing the overall thickness of the display device 1. In addition, when the collimator 41 is disposed between the photosensitive unit 31 and the display layer 20, the collimator 41 also needs to be supported by the substrate 32. The present application can make the collimator 41 and the photosensitive unit 31 share one substrate 32, thereby further reducing the thickness of the whole display device 1. Optionally, the height of the collimating elements 41 is 1-50 μm.

Referring to fig. 2, fig. 2 is a schematic cross-sectional view of a display device according to another embodiment of the present disclosure. In this embodiment, one end of the collimating element 41 close to the cover plate 10 is higher than one end of the photosensitive unit 31 close to the cover plate 10. The application can also make one end of the collimating element 41 close to the cover plate 10 higher than one end of the photosensitive unit 31 close to the cover plate 10, so that the collimating element 41 higher than the photosensitive unit 31 is used for absorbing light rays with deviated propagation paths, thereby improving the fingerprint imaging quality.

Referring to fig. 2 again, in the present embodiment, the collimating element 41 includes a first end 42 close to the cover plate 10 and a second end 43 away from the cover plate 10, and the photosensitive unit 31 is disposed close to the second end 43. This application still can make photosensitive element 31 be close to second end 43 sets up to improve the height of the collimation piece 41 on the photosensitive element 31, further improve the quantity that the collimation piece 41 absorbed light, thereby further improve fingerprint image quality.

The above description of the present application describes the relationship between the alignment layer 40 and the fingerprint module 30, and the following description will continue to describe the position and structure relationship between the display layer 20 and the fingerprint module 30. Referring to fig. 2 again, in an embodiment of the present application, the display layer 20 is disposed between the cover plate 10 and the fingerprint module 30. The display layer 20 of the present application can be disposed between the cover plate 10 and the fingerprint module 30, and it can also be understood that the display layer 20 is disposed between the cover plate 10 and the photosensitive unit 31.

Referring to fig. 3, fig. 3 is a schematic cross-sectional view of a display device according to another embodiment of the present application. In this embodiment, the display layer 20 includes a plurality of light emitting units 21 arranged at intervals, and at least a part of the orthographic projection of the light sensing unit 31 on the display layer 20 is located in a gap between two adjacent light emitting units 21.

The display layer 20 of the present application includes a plurality of light emitting units 21 arranged at intervals, and the content of the light emitting units 21 is described above, and the detailed description of the embodiment is omitted here. This application still can make the at least part of orthographic projection of sensitization unit 31 on display layer 20 is located adjacent two in the clearance of luminescence unit 21, also can understand to make at least part sensitization unit 31 correspond adjacent two luminescence unit 21's clearance in, can make like this that the reflection light that reflects back through the target object continue downward propagation from adjacent two luminescence unit 21's clearance to transmit the sensitization unit 31 that sets up corresponding clearance, let sensitization unit 31 can better receive the reflection light.

Referring to fig. 4, fig. 4 is a schematic cross-sectional view of a display device according to another embodiment of the present application. In this embodiment, the orthographic projection of the collimating element 41 on the display layer 20 is located within the light emitting unit 21.

The orthographic projection of the collimating element 41 on the display layer 20 can be located in the light-emitting unit 21, and it can also be understood that the collimating element 41 is arranged opposite to the light-emitting unit 21, and the width of the collimating element 41 is smaller than that of the light-emitting unit 21. This not only functions as the collimating member 41, but also shields the collimating member 41 in the height direction of the display device 1 by the light emitting unit 21, so that the user cannot see the collimating member 41, thereby improving the display effect of the display device 1.

Referring to fig. 5, fig. 5 is a schematic cross-sectional view of a display device according to another embodiment of the present application. In this embodiment, the display layer 20 further includes a bottom plate 22, the bottom plate 22 is used for carrying the light emitting unit 21, the bottom plate 22 is disposed adjacent to the fingerprint module 30 compared to the light emitting unit 21, and the first end 42 of the collimating element 41 abuts against the bottom plate 22.

The display layer 20 may further include a bottom plate 22 for carrying the light emitting unit 21 and transmitting an electrical signal to the light emitting unit 21 through the bottom plate 22. The present application can also make the first end 42 of the collimating element 41 abut against the bottom plate 22, so that the two adjacent photosensitive units 31 are separated by the collimating element 41, thereby preventing the light from being transmitted to the photosensitive units 31 beside, and causing crosstalk of the light.

The above description describes that in one embodiment of the present application, the display layer 20 may be disposed between the cover plate 10 and the fingerprint module 30. In another embodiment of the present application, please refer to fig. 6, and fig. 6 is a schematic cross-sectional view of a display device in another embodiment of the present application. In this embodiment, the display layer 20 includes a plurality of light emitting units 21 disposed at intervals, the light emitting units 21 are disposed on the same layer as the light sensing units 31, and one or more light emitting units 21 are disposed between two adjacent light sensing units 31.

This embodiment can make display layer 20 and fingerprint module 30 set up on the same layer, even luminescence unit 21 and sensitization unit 31 set up on the same layer, thereby further reduce display device 1's thickness, secondly, luminescence unit 21 in the display layer 20 originally needs bottom plate 22 to support, and sensitization unit 31 in the fingerprint module 30 needs substrate 32 to support, this application can make luminescence unit 21 and sensitization unit 31 share a substrate 32 to support, thereby further reduced display device 1's thickness. In addition, this application still can make two adjacent be equipped with one or more between the sensitization unit 31 the quantity of emission light is improved to improve reflection light's quantity, improve fingerprint image quality.

Referring to fig. 7, fig. 7 is a schematic cross-sectional view of a display device according to still another embodiment of the present application. In this embodiment, the collimating layer 40 is also used to define the positions of the light emitting units 21 as a pixel defining layer of the display device 1, and the collimating member 41 is disposed between two adjacent light emitting units 21.

The present application may further provide a collimating member 41 between two adjacent light emitting units 21, thereby preventing the emitted light of two adjacent light emitting units 21 from affecting each other. In addition, the collimating layer 40 and the collimating element 41 of the present application may also be used to define the position of the light emitting unit 21 as a pixel defining layer of the display device 1. It can also be understood that, in the present application, when the display device 1 is manufactured, an entire pre-collimating layer 40 may be manufactured, and then the collimating layer 40 is formed through a patterning process, that is, a plurality of collimating elements 41 are disposed at intervals, at this time, two adjacent collimating elements 41 form an accommodating space, and the accommodating space is used for installing the light emitting unit 21, so that the collimating layer 40 may also be used for defining the position of the light emitting unit 21, and improving the positioning accuracy of the light emitting unit 21. Alternatively, the collimating layer 40 may also define the position of the light sensing unit 31.

Referring to fig. 8, fig. 8 is a schematic cross-sectional view of a display device according to still another embodiment of the present application. In this embodiment, one end of the collimating element 41 close to the cover plate 10 is higher than one end of the photosensitive unit 31 close to the cover plate 10, and one end of the collimating element 41 close to the cover plate 10 is higher than one end of the light emitting unit 21 close to the cover plate 10.

The application can also make one end of the collimating piece 41 close to the cover plate 10 higher than one end of the photosensitive unit 31 close to the cover plate 10, and make one end of the collimating piece 41 close to the cover plate 10 higher than one end of the light-emitting unit 21 close to the cover plate 10, so that the collimating piece 41 higher than the photosensitive unit 31 is used for absorbing light rays with deviation in propagation routes, and the fingerprint imaging quality is improved.

Referring to fig. 9, fig. 9 is a schematic cross-sectional view of a display device according to still another embodiment of the present application. In this embodiment, the display device 1 further includes a touch layer 11 and a polarizer 12, the touch layer 11 and the polarizer 12 are disposed between the cover plate 10 and the display layer 20, the polarizer 12 is disposed near the display layer 20 compared to the touch layer 11, and the polarizer 12 abuts against the first end 42 of the collimating element 41.

The display provided by the present application may further include a touch layer 11 and a polarizer 12, so that the display device 1 has a touch function. The touch layer 11 and the polarizer 12 are disposed between the cover plate 10 and the display layer 20, and the polarizer 12 is disposed closer to the display layer 20 than the touch layer 11. The present application may also make polarizer 12 abut against first end 42 of the collimating member 41, so that the collimating member 41 separates two adjacent photosensitive units 31 or light-emitting units 21, thereby preventing light from being transmitted to the adjacent photosensitive units 31 or light-emitting units 21, and causing crosstalk of light.

Referring to fig. 10, fig. 10 is a schematic cross-sectional view of a display device according to still another embodiment of the present application. In this embodiment, the photosensitive unit 31 includes a photosensitive portion 33 and a fingerprint pixel driving portion 34, the photosensitive portion 33 is compared with the fingerprint pixel driving portion 34 adjacent to the cover plate 10, and the collimating element 41 is in the orthographic projection covering portion of the photosensitive unit 31 covers the fingerprint pixel driving portion 34.

The light sensing unit 31 of the present application may include a light sensing portion 33 and a fingerprint pixel driving portion 34, and the light sensing portion 33 is disposed adjacent to the cover plate 10 compared to the fingerprint pixel driving portion 34. The light-sensing portion 33 is used for receiving the reflected light from the target object. The fingerprint pixel driving unit 34 is used for driving the light sensing unit 33 to receive light. This application still can make collimation piece 41 be in orthographic projection cover part on the sensitization unit 31 fingerprint pixel drive division 34, from the above-mentioned content can know, fingerprint pixel drive division 34 is only used for carrying out the transmission between the signal of telecommunication with sensitization portion 33 owing to not receiving light, consequently, this application can make collimation piece 41 cover part fingerprint pixel drive division 34 to reduce the preparation degree of difficulty of collimation piece 41, only need make sensitization portion 33 locate between the collimation piece 41 alright.

Referring to fig. 11, fig. 11 is a schematic cross-sectional view of a display device according to still another embodiment of the present application. In this embodiment, the display device 1 further includes a plurality of light-shielding members 50 disposed at intervals, the light-shielding members 50 are disposed between two adjacent collimating members 41, and the light-shielding members 50 are further disposed on a side of the fingerprint pixel driving portion 34 close to the cover plate 10; the light sensing section 33 includes a plurality of sub light sensing sections 35, and the plurality of sub light sensing sections 35 are disposed around the light blocking member 50.

The present application may further include a plurality of light-shielding members 50 disposed at intervals, wherein the light-shielding members 50 are disposed between two adjacent collimating members 41, and the light-shielding members 50 are further disposed on a side of the fingerprint pixel driving portion 34 close to the cover plate 10. It is also understood that the light shield 50 is provided on the fingerprint pixel driving part 34. The light-sensing section 33 may include a plurality of sub-light-sensing sections 35, and the plurality of sub-light-sensing sections 35 may be disposed around the light-shielding member 50. It is also understood that the light-shielding member 50 is disposed between the plurality of sub light-sensing sections 35.

First, the light shielding member 50 provided in the present application is also used for absorbing light transmitted to the light shielding member 50. Optionally, the light shield 50 is of the same material as the collimating element 41. Further alternatively, the light shielding member 50 and the collimating member 41 may be prepared by the same process. It is also understood that the shade 50 is the same structure as the collimator 41, but applicant has named different names depending on its location. Secondly, this application can improve the quantity of collimation piece 41 through adding light-shielding piece 50 to further improve its fingerprint image quality.

Alternatively, as shown in fig. 11 in the embodiment of the general preparation flow chart. Referring to fig. 12 to 14 together, fig. 12 is a partial schematic view of a display device according to still another embodiment of the present application. Fig. 13 is a partial schematic view of a display device according to still another embodiment of the present disclosure. Fig. 14 is a partial schematic view of a display device according to still another embodiment of the present disclosure.

As shown in fig. 12, the present application forms a substrate 32, and then forms a fingerprint pixel driving portion 34 and a display driving pixel circuit layer 26 on the substrate 32. Here, the display driving pixel circuit layer 26 functions similarly to the fingerprint pixel driving section 34, and the display driving pixel circuit layer 26 is adapted to control the light emitting unit 21.

As shown in fig. 13, the collimating member 41 and the light blocking member 50 are subsequently formed. The collimator 41 is disposed between the fingerprint pixel driving unit 34 and the display driving pixel circuit layer 26, and between the display driving pixel circuit layer 26 and the display driving pixel circuit layer 26. The light shielding member 50 is disposed on the fingerprint pixel driving part 34.

As shown in fig. 14, a plurality of sub-photosensitive portions 35 are then formed on the fingerprint pixel driving portion 34, and the plurality of sub-photosensitive portions 35 are disposed around the light-shielding member 50, and the light-emitting unit 21 is formed on the display driving pixel circuit layer 26.

The present application also introduces a specific structure of the display device 1 when the light emitting unit 21 and the fingerprint module 30 are disposed on the same layer. Referring to fig. 15, fig. 15 is a partial schematic view of a display device 1 according to another embodiment of the present application. In this embodiment, the display device 1 further includes a driving circuit layer 60, the driving circuit layer 60 is used for driving the light emitting unit 21 to emit light, and the driving circuit layer 60 includes a substrate 61, a gate electrode 62, a gate insulating layer 63, an active layer 64, a source electrode 65, a drain electrode 650, an insulating layer 66, a planarization layer 67, and a pixel electrode layer 68. The substrate 61 has a light emitting region 611 and a light sensing region 612, the gate electrode 62 is disposed on one side of the substrate 61, the gate insulating layer 63 is disposed on one side of the gate electrode 62 away from the substrate 61, and the active layer 64, the source electrode 65, the drain electrode 650, and the fingerprint pixel driving part 34 are disposed on one side of the gate insulating layer 63 away from the substrate 61. The active layer 64, the source electrode 65, and the drain electrode 650 are disposed corresponding to the light emitting region 611, and the fingerprint pixel driving part 34 is disposed corresponding to the light sensing region 612. The insulating layer 66 and the planarization layer 67 cover the drain electrode 650 and the fingerprint pixel driving portion 34, and the pixel electrode layer 68 is electrically connected to the drain electrode 650 through a first via hole 71 penetrating the insulating layer 66 and the planarization layer 67. The flat layer 67 and the pixel electrode layer 68 deviates from one side of the substrate 61 is provided with the collimation layer 40, a second through hole 72 and a third through hole 73 are formed in the collimation layer 40, the second through hole 72 penetrates through the collimation layer 40, the flat layer 67 and the insulating layer 66 to enable part of the fingerprint pixel driving portion 34 to be exposed, the light sensing portion 33 is arranged in the second through hole 72, the third through hole 73 penetrates through the collimation layer 40 to enable part of the pixel electrode layer 68 to be exposed, and the light emitting unit 21 is arranged in the third through hole 73.

Optionally, the present application also introduces a general manufacturing flow diagram of the display device as shown in fig. 15. Please refer to fig. 16-18. Fig. 16 is a partial schematic view of a display device according to still another embodiment of the present application. Fig. 17 is a partial schematic view of a display device according to still another embodiment of the present application. Fig. 18 is a partial schematic view of a display device according to still another embodiment of the present application.

As shown in fig. 16, a substrate 61, a gate electrode 62, a gate insulating layer 63, an active layer 64, a source electrode 65, a drain electrode 650, an insulating layer 66, a planarization layer 67, and a pixel electrode layer 68 may be formed first. The substrate 61 has a light emitting region 611 and a light sensing region 612, the gate electrode 62 is disposed on one side of the substrate 61, the gate insulating layer 63 is disposed on one side of the gate electrode 62 away from the substrate 61, and the active layer 64, the source electrode 65, the drain electrode 650, and the fingerprint pixel driving part 34 are disposed on one side of the gate insulating layer 63 away from the substrate 61. The active layer 64, the source electrode 65, and the drain electrode 650 are disposed corresponding to the light emitting region 611, and the fingerprint pixel driving part 34 is disposed corresponding to the light sensing region 612. The insulating layer 66 and the planarization layer 67 cover the drain electrode 650 and the fingerprint pixel driving portion 34, and the pixel electrode layer 68 is electrically connected to the drain electrode 650 through a first via hole 71 penetrating the insulating layer 66 and the planarization layer 67.

As shown in fig. 17, subsequently, in the present application, a collimating layer 40 may be formed on the side of the flat layer 67 and the pixel electrode layer 68 away from the substrate 61, the collimating layer 40 is provided with a second through hole 72 and a third through hole 73, the second through hole 72 penetrates through the collimating layer 40, the flat layer 67 and the insulating layer 66 to expose a portion of the fingerprint pixel driving portion 34, and the third through hole 73 penetrates through the collimating layer 40 to expose a portion of the pixel electrode layer 68.

Alternatively, if the light-shielding member 50 is present, the light-shielding member 50 may be formed on the fingerprint pixel driving part 34 after the alignment layer 40 is formed and the second through hole 72 is opened.

As shown in fig. 18, the light sensing portion 33 may be formed in the second through hole 72, and the light emitting unit 21 may be formed in the third through hole 73.

Referring to fig. 19, fig. 19 is a schematic cross-sectional view of a display device according to still another embodiment of the present application. In this embodiment, the display device 1 further includes a light reflecting member 80, and the light reflecting member 80 is disposed on at least a portion of the sidewall of the collimating member 41.

The application can also add the reflector 80 on the sidewall of the collimator 41, and the reflector 80 can reflect the reflected light transmitted from the target object and further reflect the reflected light toward the photosensitive unit 31. It can also be understood that, the light-reflecting member 80 is disposed on the side wall, and the light rays that would be absorbed by the collimating member 41 are emitted to the light-sensing unit 31 again and received by the light-sensing unit 31, so that the quantity of the light rays received by the light-sensing unit 31 is greatly increased, and the fingerprint imaging quality of the display device 1 is improved. The present embodiment is only illustrated in the case where the light reflecting member 80 is provided on a part of the side wall of the collimating member 41. Alternatively, the present embodiment is the reflector 80 added to the embodiment shown in fig. 5, but the reflector 80 may be added to other embodiments, and the present application is not limited thereto.

Referring to fig. 20, fig. 20 is a schematic cross-sectional view of a display device according to still another embodiment of the present application. In this embodiment, the light reflecting member 80 covers a part of the sidewall of the collimating member 41, and the light reflecting member 80 is disposed close to the photosensitive unit 31.

The application can also make the reflecting piece 80 be close to the photosensitive unit 31, so that the light reflected by the reflecting piece 80 is absorbed by the photosensitive unit 31 more easily.

The application also provides an electronic device, the electronic device includes a housing, a main board, and the display device 1 provided as the above embodiment of the application, the housing is used for installing the display device 1 and the main board, the display device 1 is electrically connected to the main board.

The application provides an electronic equipment, through adopting the display device 1 that the above-mentioned embodiment of this application provided, can effectively improve fingerprint image quality, reduces the thickness of electronic equipment complete machine.

Optionally, the electronic device further includes a processor, the processor is electrically connected to the display device 1, when the cover plate 10 is touched by a target object, the processor controls the light emitting unit 21 in the display device 1 to emit an emission light, when the emission light is transmitted to the target object, the emission light is reflected to form a reflection light, the reflection light is transmitted to the photosensitive unit 31 in the display device 1 to generate a fingerprint signal, and the processor obtains a fingerprint image according to the fingerprint signal. The light emitting unit 21 can be controlled to emit light by the processor, the photosensitive unit 31 is used for receiving and generating a fingerprint signal, and the processor processes the fingerprint signal to obtain a fingerprint image.

Optionally, when the side wall of the collimating element 41 is provided with a light reflecting element 80, the processor is further configured to correct the received fingerprint signal and obtain a corrected fingerprint signal, and the processor obtains the fingerprint image according to the corrected fingerprint signal. When the collimating element 41 is provided with the light reflecting element 80 on the sidewall, the light reflecting element 80 can be used to make the light sensing unit 31 receive more light. At this time, the processor may also be used to correct the received fingerprint signal and obtain a corrected fingerprint signal, so as to correct the light transmitted from the light reflecting member 80, and make the fingerprint signal more accurate. And finally, obtaining a fingerprint image according to the corrected fingerprint signal.

The foregoing detailed description has provided for the embodiments of the present application, and the principles and embodiments of the present application have been presented herein for purposes of illustration and description only and to facilitate understanding of the methods and their core concepts; meanwhile, for a person skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A display device is characterized by comprising a cover plate, a display layer, a fingerprint module and a collimation layer; the display layer with the fingerprint module is located one side of apron, the fingerprint module includes the sensitization unit that a plurality of intervals set up, the collimation layer includes the collimation piece that a plurality of intervals set up, adjacent two be equipped with between the sensitization unit the collimation piece, the collimation piece can absorb the transmission extremely light on the collimation piece.

2. The display device according to claim 1, wherein an end of the collimating member adjacent to the cover plate is higher than an end of the light sensing unit adjacent to the cover plate.

3. The display device of claim 2, wherein the collimating element includes a first end proximate to the cover plate and a second end facing away from the cover plate, the light sensing unit being disposed proximate to the second end.

4. The display device as claimed in claim 3, wherein the display layer is disposed between the cover plate and the fingerprint module.

5. The display device according to claim 4, wherein the display layer comprises a plurality of light emitting units arranged at intervals, and at least part of orthographic projection of the light sensing unit on the display layer is positioned in a gap between two adjacent light emitting units.

6. The display device of claim 5, wherein an orthographic projection of the collimating element on the display layer is located within the light emitting unit.

7. The display device as claimed in claim 6, wherein the display layer further comprises a bottom plate for carrying the light emitting unit, the bottom plate is disposed adjacent to the fingerprint module compared to the light emitting unit, and the first end of the collimating element abuts against the bottom plate.

8. The display device according to claim 1, wherein the display layer includes a plurality of light emitting units disposed at intervals, the light emitting units are disposed on the same layer as the light sensing units, and one or more light emitting units are disposed between two adjacent light sensing units.

9. The display device of claim 8, wherein the collimating layer is further configured to define the positions of the light emitting cells as a pixel defining layer of the display device, the collimating element being disposed between two adjacent light emitting cells.

10. The display device according to claim 9, wherein an end of the collimating member near the cover plate is higher than an end of the light sensing unit near the cover plate, and an end of the collimating member near the cover plate is higher than an end of the light emitting unit near the cover plate.

11. The display device as claimed in claim 8, wherein the photosensitive unit includes a photosensitive portion and a fingerprint pixel driving portion, the photosensitive portion is disposed adjacent to the cover plate compared to the fingerprint pixel driving portion, and an orthogonal projection of the collimating member on the photosensitive unit covers a portion of the fingerprint pixel driving portion.

12. The display device according to claim 11, further comprising a plurality of light-shielding members disposed at intervals, wherein the light-shielding members are disposed between two adjacent collimating members, and the light-shielding members are further disposed on a side of the fingerprint pixel driving portion adjacent to the cover plate; the light-sensing part comprises a plurality of sub light-sensing parts, and the sub light-sensing parts surround the light shielding piece.

13. The display device according to claim 11, further comprising a driving wiring layer for driving the light emitting unit to emit light, the driving wiring layer comprising a substrate, a gate electrode, a gate insulating layer, an active layer, a source electrode, a drain electrode, an insulating layer, a planarization layer, and a pixel electrode layer;

the substrate is provided with a light emitting area and a light sensing area, the grid electrode is arranged on one side of the substrate, the grid electrode insulating layer is arranged on one side of the grid electrode, which is far away from the substrate, and the active layer, the source electrode, the drain electrode and the fingerprint pixel driving part are arranged on one side of the grid electrode insulating layer, which is far away from the substrate; the active layer, the source electrode and the drain electrode are arranged corresponding to the light emitting area, and the fingerprint pixel driving part is arranged corresponding to the light sensing area;

the insulating layer and the flat layer cover the drain electrode and the fingerprint pixel driving part, and the pixel electrode layer is electrically connected with the drain electrode through a first through hole penetrating through the insulating layer and the flat layer;

the flat layer and the pixel electrode layer deviates from one side of the substrate is provided with the collimation layer, a second through hole and a third through hole are formed in the collimation layer, the second through hole penetrates through the collimation layer, the flat layer and the insulating layer to enable the portion of the fingerprint pixel driving portion to be exposed, the light sensing portion is arranged in the second through hole, the third through hole penetrates through the collimation layer to enable the portion of the pixel electrode layer to be exposed, and the light emitting unit is arranged in the third through hole.

14. The display device of claim 1, further comprising a reflective member disposed on at least a portion of the sidewalls of the collimating member.

15. The display device of claim 14, wherein the light reflecting member covers a portion of the sidewall of the collimating member, and the light reflecting member is disposed adjacent to the light sensing unit.

16. The display device of claim 1, wherein the color of the collimating element is black.

17. An electronic apparatus, comprising a housing, a main board, and the display device according to any one of claims 1 to 16, wherein the housing is configured to accommodate the display device and the main board, and the display device is electrically connected to the main board.

18. The electronic device according to claim 17, further comprising a processor electrically connected to the display device, wherein when the cover is touched by a target object, the processor controls a light emitting unit in the display device to emit an emission light, when the emission light is transmitted to the target object, the emission light is reflected to form a reflection light, the reflection light is transmitted to a light sensing unit in the display device to generate a fingerprint signal, and the processor obtains a fingerprint image according to the fingerprint signal;

when the side wall of the collimating piece is provided with the light reflecting piece, the processor is further used for correcting the received fingerprint signal and obtaining a corrected fingerprint signal, and the processor obtains the fingerprint image according to the corrected fingerprint signal.