WO2024007768A1

WO2024007768A1 - Flexible screen and electronic apparatus

Info

Publication number: WO2024007768A1
Application number: PCT/CN2023/096873
Authority: WO
Inventors: 袁学剑
Original assignee: Oppo广东移动通信有限公司
Priority date: 2022-07-05
Filing date: 2023-05-29
Publication date: 2024-01-11
Also published as: CN115171532A

Abstract

A flexible screen and an electronic apparatus. The flexible screen (100) comprises a display panel (10) and a supporting member (20). The display panel (10) comprises a plurality of light-emitting devices (10b), wherein each light-emitting device (10b) delimits a light-emitting area (AA), and a non-light-emitting area (FA) of the display panel (10) apart from the light-emitting area (AA); and a portion of the display panel (10) forms a light-transmitting area (TA) in the non-light-emitting area (FA). An under-screen identification area (IA) of the supporting member (20) is provided with a plurality of light-through holes (20a), and the orthographic projection of an area enclosed by hole walls of the light-through holes (20a) on a plane where the light emergence surface (10a) of the display panel (10) is located, is located in the orthographic projection of a plane, where the light emergence surface (10a) is located, of the light transmitting area (TA).

Description

Flexible screens and electronic equipment

This application claims priority to the Chinese patent application filed on July 5, 2022, with application number 2022107824098 and titled "Flexible Screen and Electronic Devices", the full text of which is hereby incorporated by reference.

Technical field

This application relates to the technical field of electronic equipment, and in particular to flexible screens and electronic equipment.

Background technique

With the development of electronic technology, electronic devices such as mobile phones and tablet computers have become an indispensable part of people's daily life and work. In order to obtain a larger screen-to-body ratio, some electronic devices adopt under-screen imaging technology solutions. Specifically, in the under-screen imaging technology solution, the under-screen fingerprint module is placed below the screen.

In related technologies, in order to obtain a large-screen experience, electronic devices such as folding, retractable and roll-up models have been developed around the unfolded form of flexible screens. The application of flexible screens in electronic devices has improved to a certain extent. The large-screen experience when in use, and the portability when folded for use.

However, for electronic devices with flexible screens, when setting up an under-screen fingerprint module, the flexible screen needs to be drilled to set up an under-screen fingerprint module. This will lead to the problem of the flexible screen corresponding to the under-screen fingerprint module. The position may collapse due to insufficient support. Moreover, when viewed from the display side of the flexible screen, there will be different visual effects between the positions where the holes are dug and the positions where the holes are not dug. This difference in display effect will bring A bad user experience.

Contents of the invention

According to various embodiments of the present application, a flexible screen and an electronic device are provided.

On the one hand, this application provides a flexible screen, including:

A display panel includes a plurality of light-emitting devices. The light-emitting devices define a light-emitting area. The light-emitting surface of the display panel includes the light-emitting area and a non-light-emitting area other than the light-emitting area. Part of the structure of the display panel is transparent. Material to form a light-transmitting area in the non-luminous area;

A support member is stacked on the side of the display panel facing away from the light-emitting surface, and is used to support the The display panel, the support member is configured to be bent along with the display panel, the support member has an under-screen identification area, the under-screen identification area is provided with a plurality of light holes, and the light holes are The orthographic projection of the area enclosed by the hole wall on the plane where the light-emitting surface is located is located within the orthographic projection of the light-transmitting area on the plane where the light-emitting surface is located.

On the other hand, this application provides an electronic device, including:

A flexible screen includes a display panel and a support. The light-emitting surface of the display panel includes a light-emitting area and a non-light-emitting area other than the light-emitting area. Part of the structure of the display panel is made of transparent material so that the non-light-emitting area can Forming a light-transmitting area, the support members are stacked on a side of the display panel facing away from the light-emitting surface, the support members are configured to be able to bend with the display panel, and the support members have an under-screen Identification area, the identification area under the screen is provided with a plurality of light holes, and the area enclosed by the hole wall of the light hole is located in the orthographic projection of the plane where the light exit surface is located in the light transmission area and is located in the light exit area. Within the orthographic projection of the plane where the surface is located;

A first fingerprint module is disposed on a side of the support member facing away from the display panel, and the first fingerprint module is opposite to the under-screen identification area, so that the light passing through the light-transmitting area Light can pass through the light hole and be incident on the first fingerprint module.

In another aspect, the present application provides an electronic device, including a first fingerprint module and the above-mentioned flexible screen. The first fingerprint module is disposed on a side of the support member facing away from the display panel, and the first fingerprint module is disposed on a side of the support member facing away from the display panel. The first fingerprint module is opposite to the under-screen identification area, so that light can pass through the light hole and be incident on the first fingerprint module.

Description of the drawings

In order to explain the embodiments of the present application or the technical solutions in the prior art more clearly, the drawings needed to be used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings in the following description are only These are some embodiments of the present application. For those of ordinary skill in the art, drawings of other embodiments can be obtained based on these drawings without exerting creative efforts.

Figure 1 is a three-dimensional schematic diagram of a flexible screen according to an embodiment;

Figure 2 is a schematic diagram of the arrangement of light-emitting devices of a display panel of a flexible screen according to an embodiment;

Figure 3 is a schematic diagram of the stacked structure of a display panel of a flexible screen according to an embodiment;

Figure 4 is a schematic structural diagram of a flexible screen equipped with a first fingerprint module according to an embodiment;

Figure 5 is a schematic diagram of the projection of the light hole of the support member on the light exit surface of the display panel in the flexible screen according to one embodiment;

Figure 6 is an optical perspective view of a display panel of a flexible screen according to an embodiment;

Figure 7 is a schematic diagram of the arrangement of light holes of the support member of the flexible screen according to an embodiment;

Figure 8 is a schematic structural diagram of a flexible screen according to another embodiment;

Figure 9 is a schematic structural diagram of a flexible screen according to yet another embodiment;

Figure 10 is a schematic structural diagram of an electronic device according to an embodiment;

Figure 11 is a schematic structural diagram of an electronic device from another perspective according to an embodiment;

Figure 12 is a schematic cross-sectional view of the electronic device along line I-I in Figure 11 according to an embodiment, showing the relative positions of the first fingerprint module and the second fingerprint module;

Figure 13 is a schematic cross-sectional view of the electronic device along line I-I in Figure 11 in another embodiment, showing the relative positions of the first fingerprint module and the second fingerprint module;

FIG. 14 is a circuit block diagram of a first fingerprint module and a second fingerprint module in an electronic device according to an embodiment.

Reference signs:
100. Flexible screen; 10. Display panel; 10a, light-emitting surface; 10b, light-emitting device; AA, light-emitting area;
FA, non-luminous area; TA, light-transmitting area; 11. Backplane; 12. Display layer; 13. Polarizing layer; 14. Adhesive layer; 15. Ultra-thin flexible glass layer; 16. Encapsulation layer; 20. Support member; IA, identification area under the screen; 20a, light hole; 20a, anti-reflective layer; 101, reinforcement layer; 102, buffer layer; 102a, through hole; 30, first fingerprint module; 200, electronic equipment; 201, First housing; 202, second housing; 210, secondary screen; 210a, light-emitting surface of the secondary screen; 220, second fingerprint module.

Detailed ways

In order to facilitate understanding of the present application, the present application will be described more fully below with reference to the relevant drawings. The preferred embodiments of the present application are shown in the accompanying drawings. However, the present application may be implemented in many different forms and is not limited to the embodiments described herein. Rather, these embodiments are provided so that a thorough understanding of the disclosure of the present application will be provided.

As used herein, "electronic equipment" refers to, but is not limited to, any one or more of the following connections: A device capable of receiving and/or transmitting communications signals connected in a connected manner:

(1) Via wired line connection, such as via Public Switched Telephone Networks (PSTN), Digital Subscriber Line (DSL), digital cable, direct cable connection;

(2) Via wireless interface methods, such as cellular networks, Wireless Local Area Network (WLAN), digital television networks such as DVB-H networks, satellite networks, and AM-FM broadcast transmitters.

An electronic device configured to communicate via a wireless interface may be referred to as a "mobile terminal". Examples of mobile terminals include, but are not limited to, the following electronic devices:

(1) Satellite phone or cellular phone;

(2) Personal Communications System (PCS) terminals that can combine cellular radiotelephone with data processing, fax and data communication capabilities;

(3) Wireless telephones, pagers, Internet/Intranet access, Web browsers, planners, calendars, Personal Digital Assistants (PDAs) equipped with Global Positioning System (GPS) receivers;

(4) Conventional laptop and/or handheld receivers;

(5) Conventional laptop and/or handheld radiotelephone transceivers, etc.

Referring to FIG. 1 , a flexible screen 100 according to an embodiment of the present application can be bent. The flexible screen 100 includes a display panel 10 and a support 20 . The display panel 10 includes a light-emitting surface 10a for light emitting display. The support member 20 is stacked on the side of the display panel 10 facing away from the light-emitting surface 10a. The support member 20 is used to support the display panel 10 so that the display panel 10 is not prone to collapse. , to maintain good display effect.

For ease of understanding, as shown in FIG. 2 , the display panel 10 includes a plurality of light-emitting devices 10 b , and the light-emitting devices 10 b are used to emit light so that the display panel 10 displays. For ease of understanding, the location of the light-emitting device 10b of the display panel 10 is defined as the light-emitting area AA, and accordingly, the area outside the light-emitting device 10b is the non-light-emitting area FA. That is to say, the light-emitting surface 10a of the display panel 10 includes the light-emitting area AA and the non-light-emitting area FA except the light-emitting area AA.

In the non-light-emitting area FA, a pixel electrode may be provided, and the pixel electrode is used to electrically connect with the light-emitting device 10b. catch. The position where the pixel electrode is disposed in the non-light-emitting area FA has no light transmittance. It should be noted that a plurality of light-emitting devices 10b are arranged in a certain manner to form a pixel array, so that these light-emitting devices 10b are used to emit light of different colors to cause the display panel 10 to present an image to be displayed.

Part of the structure of the display panel 10 is made of transparent material to form a light-transmitting area TA in the non-light-emitting area FA. It can be understood that the light-transmitting area TA can be the entire area of the non-light-emitting area FA, or can be a part of the non-light-emitting area FA, as long as the position of the display panel 10 corresponding to the light-transmitting area TA can allow light to pass through.

Exemplarily, FIG. 3 shows a stacked structure of the display panel 10 . As shown in FIG. 3 , the display panel 10 includes a backplane 11 , a display layer 12 , a polarizing layer 13 , an adhesive layer 14 , an ultra-thin flexible glass layer 15 and an encapsulation layer 16 that are stacked in sequence. The back plate 11 can be used to carry the display layer 12, and the material of the back plate 11 includes but is not limited to polyimide (Polyimide, PI). In some embodiments, the light emitting device 10 b may be a thin film transistor formed on the display layer 12 .

The glue layer 14 can be optical glue (Optically Clear Adhesive, OCA), and the glue layer 14 is used to glue the transparent polarizing layer 13 and the ultra-thin flexible glass layer 15 . OCA is colorless and transparent, its light transmittance is above 90%, and its bonding strength is good. It can be cured at room or medium temperature, and the manufacturing process is simple.

The ultra-thin flexible glass (Ultra-Thin Glass, UTG) used in the ultra-thin flexible glass layer 15 has the characteristics of foldability, good flexibility, smooth feel and good uniformity, and can be adapted to the different needs of users for folding screens. It is applied to various foldable devices, and the smooth and flat texture brought by ultra-thin flexible glass can greatly improve the user experience.

The encapsulation layer 16 is used to protect the ultra-thin flexible glass layer 15 . The encapsulation layer 16 may be formed on the surface of the ultra-thin flexible glass layer 15 by coating. In some embodiments, the preformed encapsulation layer 16 can also be adhered to the ultra-thin flexible glass layer 15 through OCA.

In some embodiments, the encapsulation layer 16 includes at least one inorganic layer and at least one organic layer that are alternately stacked. The inorganic layer can be selected from inorganic materials such as aluminum oxide, silicon oxide, silicon nitride, silicon oxynitride, silicon carbide, titanium oxide, zirconium oxide, zinc oxide, etc. The organic layer is selected from epoxy resin, polyimide (PI), polyethylene glycolterephthalate (PET), polycarbonate (PC), polyethylene (Polyethylene, PE) , polyacrylate and other organic materials.

In some embodiments, the ultra-thin flexible glass layer 15 can be replaced with a transparent polyimide film. It should be noted that the display panel 10 may also include other film layers or components, which will not be described again here.

The material of part of the structure of the display panel 10 based on the flexible screen 100 is a transparent material, and light can pass through the light-transmitting area TA, so that when the first fingerprint module 30 is installed on the side of the flexible screen 100 facing away from the light emitting surface 10a, The first fingerprint module 30 can perform fingerprint recognition.

In the flexible screen 100 of the embodiment of the present application, the support member 20 is configured to be bent along with the display panel 10 . As shown in FIG. 4 , the support member 20 has an under-screen identification area IA. The under-screen identification area IA is provided with a plurality of light holes 20a. It can be understood that the light holes 20a penetrate the support member 20 along the thickness direction of the support member 20. Therefore, light can pass through the light hole 20a. In this embodiment, when the first fingerprint module 30 is configured on the flexible screen 100, the first fingerprint module 30 can be disposed on the side of the support 20 facing away from the display panel 10, so that the first fingerprint module 30 and The under-screen identification area IA of the support 20 corresponds to. To be precise, the orthographic projection of the first fingerprint module 30 on the support 20 falls into the under-screen identification area IA, thereby passing through the light provided in the under-screen identification area IA. The light from the hole 20a can enter the first fingerprint module 30 to meet the fingerprint recognition needs of the first fingerprint module 30.

It should be noted in particular that, as shown in FIG. 5 , the light-transmitting hole 20 a on the support member 20 is positioned corresponding to the light-transmitting area TA of the display panel 10 . To be precise, the area enclosed by the hole walls of the light-transmitting hole 20 a The area in the orthographic projection of the plane where the light-emitting surface 10a is located is located in the light-transmitting area TA, which is located in the orthographic projection of the plane where the light-emitting surface 10a is located, thereby meeting the need for light to pass through and adapting to the need to set the first fingerprint module 30 on the flexible screen 100 . Since the light hole 20a corresponds to the light-transmitting area TA of the display panel 10, the portion of the support member 20 corresponding to the light-emitting area AA can still exert a good supporting effect on the display panel 10. Based on the multiple light-emitting devices in the display panel 10 10b is densely arranged (it is difficult for the user to observe a single light-emitting device 10b with the naked eye), and the light-transmitting area TA located in the non-light-emitting area FA will also be dispersed by the light-emitting area AA defined by multiple light-emitting devices 10b. Correspondingly, the support member 20 is set The position of the light hole 20a can only correspond to the position of the gap between the light-emitting devices 10b. Then, the light hole 20a will be very small, which is difficult to be noticed by the user and affects the position of the support member 20 in the under-screen identification area IA. The impact of the structural strength of the flexible screen 100 of the present application is small. Therefore, the flexible screen 100 of the present application uses the support member 20 to maintain the support performance of the position corresponding to the first fingerprint module 30 on the flexible screen 100. At the same time, due to the light transmission provided by this structure The hole 20a is difficult to be observed by the user, and the visual effect of the corresponding position of the first fingerprint module 30 and other positions is well consistent, effectively avoiding the direct problem in the related technology. When holes are made at the positions corresponding to the first fingerprint module 30 and the flexible screen 100 , there is a problem that the display effect at the position corresponding to the first fingerprint module 30 is different from that at other positions without holes.

In some embodiments, the support member 20 is made of metal. For example, the support member 20 is made of one or a combination of nickel (Ni), iron (Fe), and cobalt (Co), or the support member 20 is made of metal. The material used is stainless steel (SUS). The support member 20 is made of metal material, which can obtain good rigidity and toughness. The support member 20 can be used to support the display panel 10 and at the same time, the support member 20 can adapt to the bending needs of the display panel 10 . It should be noted that the thickness of the support member 20 can be 0.5mm to 2mm, specifically 0.5mm, 0.8mm, 0.9mm, 1.3mm, 1.5mm or 2mm.

The way of opening the light hole 20a in the support member 20 may be laser processing or etching processing. In some embodiments, the light hole 20a can be opened at an appropriate position of the support member 20 according to the position of the light transmission area TA on the display panel 10, so that the light hole 20a corresponds to the position of the light transmission area TA. As shown in FIG. 6 , FIG. 6 provides an optical perspective view of the display panel 10 . By performing a light transmission test on the display panel 10 (the instruments used in the light transmission test include but are not limited to X-ray imaging equipment), the display panel 10 can be obtained. The light transmission image is used to obtain the distribution of the light transmission area TA based on the light transmission image. Further, according to the distribution of the light-transmitting area TA, the positions of the light holes 20a are designed correspondingly on the support member 20. Figure 7 provides an arrangement of the light holes 20a on the support member 20 and the positions of the light holes 20a. The position corresponding to the light-transmitting area TA in the light-transmitting image of the display panel 10 is selected. It can be understood that during the operation of opening the light hole 20a in the support member 20, an alignment mark may be set on the support member 20 and the display panel 10, and the alignment mark may be used as a reference point to open the light hole 20a in the support member 20. The light hole 20a corresponding to the light transmission area TA is such that the area enclosed by the hole wall of the light hole 20a is located within the orthographic projection of the plane where the light exit surface 10a is located. .

The processing method and position of the light hole 20a on the support member 20 are not limited here. In some embodiments, other methods can be used to process the light hole 20a. For example, after obtaining a light-transmitting image of the display panel 10, the light-transmitting image can be printed out according to the actual size of the display panel 10 and used as a template, thereby When the support member 20 is stacked on the template, it is only necessary to perform a hole opening operation on the position of the light-transmitting area TA, and the light hole 20 a that meets the requirements can be obtained on the support member 20 . In some embodiments, a plurality of light holes 20a are arranged in an array, so that the light entering the first fingerprint module 30 through the light holes 20a is uniform, improving the imaging effect of the first fingerprint module 30, and facilitating fingerprint enhancement. Recognition accuracy.

The shape of the light hole 20a includes but is not limited to a circle, a triangle, a rectangle, a pentagon, etc.

Taking the light hole 20a as a circular hole as an example, the aperture of the light hole 20a may be on the micron level. For example, the aperture of the light hole 20a ranges from 100 microns to 600 microns. It can be understood that the smaller the light hole 20a is, the less impact it will have on the structural strength of the support member 20. Correspondingly, the support member 20 can maintain a greater support force. However, in order to allow light to enter the first fingerprint module 30 through the light hole 20a, if the hole is too small, it may cause adverse effects on the imaging of the first fingerprint module 30. Therefore, the aperture of the light hole 20a is controlled between 100 microns and 600 microns, so that the support member 20 can not only meet the fingerprint recognition needs of the first fingerprint module 30, but also maintain a good support effect for the display panel 10. In order to reduce the probability of the display panel 10 collapsing unevenly.

Further, as shown in FIG. 8 , the flexible screen 100 includes a reinforcing layer 101 . The reinforcing layer 101 is stacked on the side of the support 20 facing away from the display panel 10 and covers the under-screen identification area IA, thereby utilizing the reinforcing layer. 101 compensates for the strength of the support plate after the light hole 20a is opened, so that the supporting force of the under-screen identification area IA of the support plate on the display panel 10 is strengthened. It should be noted that the reinforcing layer 101 is made of a transparent material, such as PVC (Polyvinyl chloride, polyvinyl chloride) plastic or PU (polyurethane) material, or can also be made of glass. The transparent material used for the reinforcing layer 101 , no limitation is made here.

In an embodiment where the reinforcing layer 101 is provided, the first fingerprint module 30 may be disposed on the side of the reinforcing layer 101 facing away from the support 20 , or the first fingerprint module 30 may be encapsulated in the reinforcing layer. 101 in. When the first fingerprint module 30 is packaged in the reinforcing layer 101, the reinforcing layer 101 can not only reinforce the position where the light hole 20a is opened on the support member 20, but also can also play a role in the first fingerprint module 30. It has good protection effect, reduces the independent packaging structure of the first fingerprint module 30, and simplifies the processing process.

As shown in FIG. 9 , an anti-reflective layer 20 a is provided on the surface of the support member 20 facing the display panel 10 , and the anti-reflective layer 20 a covers the periphery of the light hole 20 a. The anti-reflective layer 20a is used to prevent the support 20 from reflecting light and interfering with the light entering the first fingerprint module 30, thereby improving the fingerprint recognition accuracy of the first fingerprint module 30.

The anti-reflective layer 20a may be a black ink layer. Specifically, the black ink may be adhered to the surface of the support member 20 by spraying or printing.

In some embodiments, the anti-reflective layer 20a may be formed by subjecting the surface of the support 20 to black oxidation treatment. It should be noted that black oxidation treatment is a means of chemical surface treatment. The principle It produces an oxide film on the metal surface to isolate air and achieve rust prevention while eliminating reflections.

Continuing to refer to FIG. 9 , in some embodiments, the flexible screen 100 includes a buffer layer 102 . The buffer layer 102 is stacked between the display panel 10 and the support 20 . The buffer layer 102 can be between the support 20 and the display panel 10 . It has a good buffering effect to improve the anti-fall performance of the display panel 10 . The buffer layer 102 is provided with a through hole 102a. The through hole 102a is opposite to the under-screen identification area IA to accommodate the need for light to pass through, so that the light can pass through the through hole 102a and enter the first fingerprint from the light hole 20a of the support member 20. The module 30 meets the fingerprint identification needs of the first fingerprint module 30 .

As shown again in conjunction with FIGS. 4 and 5 , the sum of the areas of all luminescent areas AA is greater than the area of the non-luminescent areas FA. The area where the orthographic projection of the under-screen identification area IA on the plane where the light-emitting surface 10a is located overlaps with the luminescent area AA is greater than the area where the orthographic projection of the under-screen identification area IA on the plane where the light-emitting surface 10a is located overlaps with the non-luminous area FA. Through this According to the structural arrangement, the under-screen identification area IA can be arranged away from the edge of the display panel 10 so that the first fingerprint module 30 corresponding to the under-screen identification area IA will not occupy the edge space of the flexible screen 100 to maintain flexibility. The screen 100 has a narrow edge design.

As shown in FIG. 10 , another embodiment of the present application provides an electronic device 200 including the above-mentioned flexible screen 100 . It should be noted that the electronic device 200 also includes a first fingerprint module 30. The first fingerprint module 30 is disposed on a side of the support 20 facing away from the display panel 10, and the first fingerprint module 30 is connected to the under-screen identification area. IA is opposite, so that light can pass through the light hole 20a and be incident on the first fingerprint module 30. Based on the flexible screen 100, the support member 20 can maintain good support for the display panel 10, and at the same time, the light hole 20a can also be used to meet the light transmission requirements, so that the first fingerprint module 30 can perform fingerprint recognition. During use of the electronic device 200, touching the flexible screen 100 will not cause the position of the flexible screen 100 corresponding to the first fingerprint module 30 to collapse. Moreover, it is difficult to penetrate the light hole 20 a of the support member 20 from the outside of the electronic device 200 , thereby causing no difference in the visual effect of the flexible screen 100 corresponding to the first fingerprint module 30 .

As shown in FIG. 10 and FIG. 11 , the electronic device 200 may be a foldable device. Specifically, the electronic device 200 includes a first housing 201 and a second housing 202 . The first housing 201 and the second housing 202 are connected respectively. The flexible screen 100, and the second housing 202 can rotate relative to the first housing 201 to drive the flexible screen 100 to fold and unfold. The first housing 201 is connected to a secondary screen 210. When the flexible screen 100 is unfolded, the secondary screen 210 The light-emitting surface 210a is opposite to the flexible screen 100.

As shown in FIG. 12 , the secondary screen 210 is connected to a second fingerprint module 220 and has a fingerprint recognition area corresponding to the second fingerprint module 220 . The second fingerprint module 220 is configured to be able to acquire the fingerprint in contact with the fingerprint recognition area. fingerprint image. Through this structural arrangement, a variety of fingerprint recognition modes can be obtained to meet fingerprint recognition in different adaptation scenarios of the electronic device 200 . For example, when the electronic device 200 is in a folded state, the flexible screen 100 is folded between the first housing 201 and the second housing 202. At this time, the secondary screen 210 can be used for display, and the corresponding operations are connected to the secondary screen 210. The second fingerprint module 220 can meet the fingerprint operation requirements of the electronic device 200 in the folded state. In some embodiments, when the electronic device 200 is in the unfolded state, since both the flexible screen 100 and the secondary screen 210 can be operated, accordingly, the under-screen fingerprint film corresponding to the flexible screen 100 can perform fingerprint recognition, and the secondary screen can perform fingerprint recognition. The second fingerprint module 220 corresponding to 210 can also perform fingerprint recognition, giving users more choices and improving operational convenience.

It should be noted that in the implementation of the present application, the functions of fingerprint recognition include but are not limited to fingerprint entry, fingerprint unlocking, and fingerprint opening applications.

The second fingerprint module 220 is located between the secondary screen 210 and the flexible screen 100 and is stacked with the first fingerprint module 30 . Under this structural arrangement, the second fingerprint module 220 and the first fingerprint module 30 are stacked on each other, which can enhance connection stability and improve structural strength. And the two can be integrated into one module to facilitate overall installation and improve installation efficiency.

Both the second fingerprint module 220 and the first fingerprint module 30 are ultra-thin fingerprint recognition chips, which will not hinder the thin and light design of the electronic device 200 and allow the first housing 201 to maintain the accommodation of other structures of the electronic device 200. Only a small amount of space is required to dispose the second fingerprint module 220 and the first fingerprint module 30 to maintain the overall thinness and thinness of the electronic device 200 .

It should be noted that the arrangement manner of the second fingerprint module 220 and the first fingerprint module 30 in the electronic device 200 is not limited to a stacked arrangement. For example, as shown in FIG. 13 , in some embodiments, the second fingerprint module The group 220 and the first fingerprint module 30 are both located between the secondary screen 210 and the flexible screen 100, and their orthographic projections on the light-emitting surface 210a of the secondary screen 210 do not overlap with each other. Specifically, the second fingerprint module 220 and the first fingerprint module 30 may be arranged side by side along the length direction of the folding axis OO of the electronic device 200 , or may be arranged perpendicular to the length direction of the folding axis OO of the electronic device 200 Directions set side by side. In some embodiments, the second fingerprint module 220 and the first fingerprint module 30 can be respectively disposed at other locations of the electronic device 200 according to structural stacking requirements.

The types of the second fingerprint module 220 and the first fingerprint module 30 are not limited to ultra-thin fingerprint recognition chips, and can also be lens-type fingerprint modules. The lens-type fingerprint module is similar to a camera and has an optical lens. The type of fingerprint module in this application is not limited here.

Further, as shown in FIG. 14 , the driving circuits of the photosensitive chips of the second fingerprint module 220 and the first fingerprint module 30 are connected in parallel to a microcontroller (MCU), and the microcontroller is integrated with a data cache circuit (Buffer). ), clock oscillation circuit (OSC), power management circuit (PMU), information burning circuit (OTP) and communication interface circuit (Interface). With this structural arrangement, the second fingerprint module 220 and the first fingerprint module 30 share a microcontroller, thereby reducing the cost of the circuit system. Moreover, since the circuits integrated by the microcontroller are independent from the photosensitive chips of the second fingerprint module 220 and the first fingerprint module 30, the photosensitive chips do not need to integrate these circuits, thereby reducing the size of the photosensitive chip. In other words, When processing photosensitive chips, each wafer can be cut into more photosensitive chips, reducing the cost of a single photosensitive chip. The independent microcontroller is a purely digital circuit chip, which can use a lower-cost process technology. Ultimately, the cost of the overall solution is reduced without losing performance.

The technical features of the above-described embodiments can be combined in any way. To simplify the description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, All should be considered to be within the scope of this manual.

The above-described embodiments only express several implementation modes of the present application, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the patent application. It should be noted that, for those of ordinary skill in the art, several modifications and improvements can be made without departing from the concept of the present application, and these all fall within the protection scope of the present application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

A flexible screen is characterized by including:

A display panel includes a plurality of light-emitting devices. The light-emitting devices define a light-emitting area. The light-emitting surface of the display panel includes the light-emitting area and a non-light-emitting area other than the light-emitting area. Part of the structure of the display panel is transparent. Material to form a light-transmitting area in the non-luminous area;

A support member is stacked on a side of the display panel facing away from the light-emitting surface and used to support the display panel. The support member is configured to be able to bend with the display panel, and the support member has An identification area under the screen. The identification area under the screen is provided with a plurality of light holes. The area enclosed by the hole walls of the light hole is located where the orthographic projection of the plane where the light exit surface is located is where the light transmission area is located. Describe the orthographic projection of the plane where the light surface is located.
The flexible screen according to claim 1, characterized by comprising a reinforcing layer stacked on a side of the support member facing away from the display panel and covering the under-screen identification area, so The reinforcing layer is made of transparent material.
The flexible screen according to claim 1, characterized by comprising a buffer layer stacked between the display panel and the support member, and the buffer layer is provided with through holes, the through holes Opposite to the under-screen identification area.
The flexible screen according to claim 1, wherein the support member is made of metal, an anti-reflective layer is provided on a surface of the support member facing the display panel, and the anti-reflective layer covers the Describe the surroundings of the light hole.
The flexible screen according to claim 4, wherein the anti-reflective layer is a black ink layer, or the anti-reflective layer is formed by subjecting the surface of the support member to black oxidation treatment.
The flexible screen according to claim 1, wherein a plurality of the light holes are arranged in an array.
The flexible screen according to claim 1, characterized in that the sum of the areas of all the luminous areas is greater than the area of the non-luminous areas, and the orthographic projection of the under-screen identification area on the plane where the light-emitting surface is located is different from the area of the non-luminous area. The overlapping area of the luminescent area is greater than the overlapping area of the orthographic projection of the under-screen identification area on the plane where the light-emitting surface is located and the non-luminous area.
The flexible screen according to claim 1, characterized in that the thickness of the support member is 0.5mm. to 2mm.
The flexible screen according to claim 1, wherein the shape of the light hole is circular, and the aperture of the light hole ranges from 100 microns to 600 microns.
An electronic device, characterized by including:

A flexible screen includes a display panel and a support. The light-emitting surface of the display panel includes a light-emitting area and a non-light-emitting area other than the light-emitting area. Part of the structure of the display panel is made of transparent material so that the non-light-emitting area can Forming a light-transmitting area, the support members are stacked on a side of the display panel facing away from the light-emitting surface, the support members are configured to be able to bend with the display panel, and the support members have an under-screen Identification area, the identification area under the screen is provided with a plurality of light holes, and the area enclosed by the hole wall of the light hole is located in the orthographic projection of the plane where the light exit surface is located in the light transmission area and is located in the light exit area. Within the orthographic projection of the plane where the surface is located;

A first fingerprint module is disposed on a side of the support member facing away from the display panel, and the first fingerprint module is opposite to the under-screen identification area, so that the light passing through the light-transmitting area Light can pass through the light hole and be incident on the first fingerprint module.
The electronic device according to claim 10, characterized by comprising a reinforcing layer stacked on a side of the support member facing away from the display panel and covering the under-screen identification area, so The reinforcing layer is made of transparent material.
The electronic device according to claim 11, wherein the first fingerprint module is disposed on a side of the reinforcement layer facing away from the support, or the first fingerprint module is packaged in in the reinforcement layer.
The electronic device according to claim 10, characterized by comprising a buffer layer stacked between the display panel and the support member, and the buffer layer is provided with a through hole, the through hole Opposite to the under-screen identification area.
The electronic device according to claim 10, wherein the support member is made of metal, an anti-reflective layer is provided on a surface of the support member facing the display panel, and the anti-reflective layer covers the Describe the surroundings of the light hole.
The electronic device according to claim 10, characterized in that the sum of the areas of all the light-emitting areas is greater than the area of the non-light-emitting area, and the orthographic projection of the under-screen identification area on the plane where the light-emitting surface is located is different from the area of the non-light-emitting area. The overlapping area of the light-emitting areas is larger than the area of the under-screen identification area on the plane where the light-emitting surface is located. The area where the orthographic projection overlaps the non-luminous area.
An electronic device, characterized by comprising a first fingerprint module and the flexible screen according to any one of claims 1 to 9, the first fingerprint module being disposed on a side of the support member facing away from the display panel on one side, and the first fingerprint module is opposite to the under-screen identification area, so that light can pass through the light hole and be incident on the first fingerprint module.
The electronic device according to claim 16, characterized in that it includes a first housing and a second housing, the first housing and the second housing are respectively connected to the flexible screen, and the second housing is connected to the flexible screen. The housing can rotate relative to the first housing to drive the flexible screen to fold and unfold. The first housing is connected to a secondary screen. When the flexible screen is deployed, the light-emitting surface of the secondary screen is in contact with the flexible screen. Opposite to the flexible screen, the secondary screen is connected to a second fingerprint module and has a fingerprint identification area corresponding to the second fingerprint module, and the second fingerprint module is configured to be able to obtain the fingerprint The identification areas are in contact with the fingerprint image.
The electronic device according to claim 17, wherein the second fingerprint module is located between the secondary screen and the flexible screen and is stacked with the first fingerprint module.
The electronic device according to claim 18, characterized in that the second fingerprint module and the first fingerprint module are both ultra-thin fingerprint recognition chips, and the second fingerprint module and the first fingerprint The drive circuits of the photosensitive chips of both modules are connected in parallel to the microcontroller, which integrates a data cache circuit, a clock oscillation circuit, a power management circuit, an information burning circuit and a communication interface circuit.
The electronic device according to claim 17, characterized in that the second fingerprint module and the first fingerprint module are located between the secondary screen and the flexible screen, and on the side of the secondary screen The orthographic projections on the light-emitting surface do not overlap each other.