Display panel and spliced display

Abstract

The invention provides a display panel and a spliced display. The display panel comprises a substrate, a plurality of light-emitting elements, a driving circuit and an optical sensor. The substrate comprises a through hole, and the through hole comprises a hole. The plurality of light-emitting elements are disposed on the substrate. The through hole is located in a region between two of the plurality of light emitting elements. The driving circuit is arranged on the substrate and is electrically connected with the plurality of light-emitting elements. The optical sensor is arranged corresponding to the through hole and receives sensing light through the hole. And the width W of the hole meets the relational expression H < = W < D. H is the depth of the hole, and D is the distance between the two light-emitting elements.

Description

[0001] This invention is a divisional application of the invention patent application with application number 202011504933.6 filed on December 18, 2020 and invention name “Display Panel and Spliced ​​Display”. Technical Field

[0002] The present disclosure relates to an electronic device, and more particularly to a display panel and a spliced ​​display. Background Art

[0003] With the advancement of technology, electronic devices (such as display devices) are developing in the direction of more functions and thinner weight. Some technologies have proposed to connect the camera lens to the display screen. However, the circuit configuration of the peripheral area of ​​the panel and the user experience of the display device still need to be optimized. In addition, in large display devices, the external camera lens may be difficult to meet the usage requirements. Therefore, there is still room for improvement in existing display devices. Summary of the invention

[0004] The present disclosure provides a display panel and a spliced ​​display, which are helpful to improve at least one disadvantage of an external camera lens.

[0005] According to an embodiment of the present disclosure, a display panel includes a substrate, a plurality of light-emitting elements, a driving circuit, and an optical sensor. The substrate includes a through hole, and the through hole includes a hole. A plurality of light-emitting elements are arranged on the substrate. The through hole is located in a region between two of the plurality of light-emitting elements. The driving circuit is arranged on the substrate and electrically connects the plurality of light-emitting elements. The optical sensor is arranged corresponding to the through hole and receives sensing light through the hole. The width W of the hole satisfies the relationship H≦W<D. H is the depth of the hole, and D is the distance between the two light-emitting elements.

[0006] According to an embodiment of the present disclosure, a spliced ​​display includes at least one of the aforementioned display panels.

[0007] In order to make the above features and advantages of the present disclosure more obvious and understandable, embodiments are given below with reference to the accompanying drawings for detailed description as follows. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] Figure 1 is a partial cross-sectional schematic diagram of a display panel according to some embodiments of the present disclosure;

[0009] Figures 2 to 5 yes Figure 1 Various partial enlarged schematic diagrams of the middle region X;

[0010] Figures 6 to 8 yes Figure 1 Various top views of the display panel in FIG.

[0011] Fig. 9is a schematic diagram of a spliced ​​display according to some embodiments of the present disclosure;

[0012] Fig.10 is a schematic diagram of another spliced ​​display according to some embodiments of the present disclosure. DETAILED DESCRIPTION

[0013] The present disclosure may be understood by referring to the following detailed description in conjunction with the accompanying drawings. It should be noted that, in order to facilitate the reader's understanding and the simplicity of the drawings, the various drawings in the present disclosure only depict a portion of the electronic device / display device, and certain elements in the drawings are not drawn according to actual scale. In addition, the number and size of each element in the drawings are for illustration only and are not intended to limit the scope of the present disclosure. For example, for clarity, the relative size, thickness and position of each film layer, region or structure may be reduced or enlarged.

[0014] Certain words are used throughout this disclosure and in the claims that follow to refer to specific components. It should be understood by those skilled in the art that electronic equipment manufacturers may refer to the same components by different names. This document does not intend to distinguish between components that have the same function but different names. In the following description and claims, the words "having" and "including" are open-ended words and should therefore be interpreted as meaning "including but not limited to..."

[0015] The directional terms mentioned herein, such as "up", "down", "front", "back", "left", "right", etc., are only with reference to the directions of the accompanying drawings. Therefore, the directional terms used are for illustration and not for limiting the present disclosure. It should be understood that when an element or a film layer is referred to as being disposed "on" or "connected to" another element or film layer, the element or film layer may be directly on or directly connected to the other element or film layer, or there may be an intervening element or film layer between the two (indirect case). Conversely, when an element or film layer is referred to as being "directly" "on" or "directly connected to" another element or film layer, there may be no intervening element or film layer between the two.

[0016] The terms "approximately", "equal to", "equal", "same", "substantially" or "approximately" mentioned herein generally represent falling within 10% of a given value or range, or represent falling within 5%, 3%, 2%, 1% or 0.5% of a given value or range. In addition, the phrases "a given range is from a first value to a second value", "a given range falls within the range from a first value to a second value" indicate that the given range includes the first value, the second value and other values ​​therebetween.

[0017] In some embodiments of the present disclosure, terms such as "connection" and "interconnection" may refer to two structures being in direct contact with each other, or may refer to two structures not being in direct contact with each other, with other structures being disposed between the two structures, unless otherwise specified. Terms such as "connection" and "interconnection" may also include situations where both structures are movable or both structures are fixed. In addition, the terms "electrically connected" and "coupled" include any direct and indirect electrical connection means.

[0018] In the following embodiments, the same or similar elements will use the same or similar reference numerals, and their redundant description will be omitted. In addition, the features in different embodiments can be mixed and matched as long as they do not violate the spirit of the invention or conflict with each other, and simple equivalent changes and modifications made in accordance with this specification or claims are still within the scope of this disclosure. In addition, the terms "first", "second", etc. mentioned in this specification or claims are only used to name different elements or distinguish different embodiments or scopes, and are not used to limit the upper or lower limit of the number of elements, nor are they used to limit the manufacturing order or setting order of the elements.

[0019] The electronic device disclosed herein may include a display device, an antenna device, a sensing device, a light-emitting device, or a splicing device, but is not limited thereto. The electronic device may include a bendable or flexible electronic device. The electronic device may, for example, include a light-emitting diode. The light-emitting diode may, for example, include an organic light emitting diode (OLED), a sub-millimeter light-emitting diode (mini LED), a micro LED, or a quantum dot light-emitting diode (quantum dotLED, which may include QLED, QDLED), fluorescence, phosphor or other suitable materials, or a combination thereof, but is not limited thereto. The following text will use a display device as an electronic device to illustrate the contents of the present disclosure, but the present disclosure is not limited thereto.

[0020] The display device disclosed herein may be, for example, a self-luminous display device. The self-luminous display device may include a light emitting diode, a light conversion layer or other suitable materials, or a combination thereof, but is not limited thereto. The light emitting diode may, for example, include an organic light emitting diode (OLED), a sub-millimeter light emitting diode (mini LED), a micro light emitting diode (micro LED) or a quantum dot light emitting diode (quantum dot LED, which may include QLED, QDLED), but is not limited thereto. The light conversion layer may include a wavelength conversion material and / or a light filtering material, and the light conversion layer may, for example, include fluorescence, phosphor, quantum dot (Quantum Dot, QD), other suitable materials or a combination thereof, but is not limited thereto. The following will illustrate the display panel in the display device with accompanying drawings, and use a spliced ​​display as a display device to illustrate the contents of the present disclosure. However, the display device disclosed herein may also be a non-spliced ​​display.

[0021] Figure 1 is a partial cross-sectional schematic diagram of a display panel according to some embodiments of the present disclosure. Figures 2 to 5 yes Figure 1 Various partial magnified schematic diagrams of the middle area X.

[0022] Please refer to Figure 1 and Figure 2 The display panel 100 may be a self-luminous display panel. The self-luminous display panel may include a light-emitting diode display panel, but is not limited thereto. The display panel 100 may be a display panel with an image acquisition device embedded therein. For example, one or more image acquisition devices may be embedded in the display panel 100. According to different requirements, the display panel 100 may display the acquired image while acquiring the image of the photographed object, but is not limited thereto.

[0023] In detail, the display panel 100 may include a substrate 110, a plurality of light-emitting elements 120, a driving circuit 130, and an optical sensor 140. The substrate 110 may include a hard substrate or a soft substrate, or may include a flexible film substrate, and the present disclosure is not limited thereto. For example, the substrate 110 may include a printed circuit board, a plastic substrate, a glass substrate, or a composite substrate, such as a composite board including polyimide (PI) and a printed circuit board, a composite board including polyimide and polyethylene terephthalate (PET), etc., but not limited thereto. The plurality of light-emitting elements 120 may include light-emitting diodes, and the light-emitting diodes may include, for example, organic light-emitting diodes (OLED), sub-millimeter light-emitting diodes (mini LED), micro LEDs (micro LED), or quantum dot light-emitting diodes (including QLED, QDLED), fluorescence, phosphor, or other suitable materials, or a combination thereof, but not limited thereto. The driving circuit 130 may include one or more integrated circuits, but is not limited thereto. The optical sensor 140 may include a camera module or a fingerprint recognition module, and may also include an infrared camera, a thermal imager, or other image acquisition devices that can provide ranging, positioning, or recognition functions, but is not limited thereto. In some embodiments, the optical sensor 140 may include a charge-coupled device (CCD) or a complementary metal oxide semiconductor image sensor (CMOS Image Sensor, CIS), such as a front-illuminated (FSI) CIS, a back-illuminated (BSI) CIS, etc., to receive sensing light, but is not limited thereto.

[0024] The substrate 110 has a surface S1 and another surface S2 opposite to the surface S1. In addition, the substrate 110 may include a through hole T1. The through hole T1 penetrates the surface S1 and the surface S2 of the substrate 110. In other words, the through hole T1 extends from the surface S1 to the surface S2.

[0025] The plurality of light emitting elements 120 are disposed on the substrate 110, and the plurality of light emitting elements 120 are disposed, for example, on the surface S1 of the substrate 110. The through hole T1 is, for example, located in a region A between two light emitting elements (such as the light emitting element 120a and the light emitting element 120b) among the plurality of light emitting elements 120.

[0026] The driving circuit 130 is disposed on the substrate 110 and electrically connected to the plurality of light emitting elements 120. The driving circuit 130 can control the plurality of light emitting elements 120 to display an image. The driving circuit 130 can be disposed on the surface S1 of the substrate 110, or can be disposed on the surface S2 of the substrate 110 to reduce its influence on the visual effect, but the disclosure is not limited thereto. In some embodiments, the driving circuit 130 can be disposed on the surface S1 of the substrate 110.

[0027] The optical sensor 140 is disposed corresponding to the through hole T1 and receives the sensing light through the through hole T1. Figure 1 , Figure 2 As shown, the through hole T1 , for example, passes through the portion of the substrate 110 located in the area A, and the optical sensor 140 , for example, is embedded in the through hole T1 of the substrate 110 to obtain image data of the object to be photographed by receiving sensing light.

[0028] By disposing the optical sensor 140 in the display area of ​​the display panel 100 (for example, the area between the light-emitting element 120a and the light-emitting element 120b), the technical problems of wasting space caused by an external camera lens, affecting the appearance, or the user being unable to look directly at the screen and the image acquisition device at the same time when using the image acquisition device can be improved.

[0029] Please refer to Figure 2 In the display panel 100, the through hole T1 may be a composite through hole, but is not limited thereto. For example, the through hole T1 includes a portion T1b where the optical sensor is disposed and a hole portion (hole T1a) exposing the optical sensor 140, wherein the hole T1a is connected to the surface S1 of the substrate 110 and is located between the surface S1 and the portion T1b where the optical sensor is disposed. The portion T1b where the optical sensor is disposed is connected to the surface S2 of the substrate 110 and is located between the surface S2 and the hole T1a. The optical sensor 140 may be disposed in the portion T1b where the optical sensor is disposed, and the hole T1a exposes the optical sensor 140, and the sensing light may be transmitted to the optical sensor 140 through the hole T1a, so that the optical sensor 140 acquires the image data of the object to be photographed. In some embodiments, the portion T1b where the optical sensor is disposed may be designed according to the size of the optical sensor 140 and may have a larger aperture than the hole T1a, but is not limited thereto.

[0030] In the embodiment disclosed herein, based on considerations of image acquisition effects, the width W of the hole T1a satisfies the following relationship: H≦W<D. The width W of the hole T1a, for example, refers to the maximum width of the through hole T1 on the surface of the substrate 110 where the plurality of light emitting elements 120 are disposed (such as the surface S1) in a direction parallel to the substrate 110. Figure 2, the width W of the hole T1a is, for example, the maximum width on the surface S1 in a direction parallel to the substrate 110. H is the depth of the hole T1a, for example, the distance from the surface of the substrate 110 where the plurality of light-emitting elements 120 are disposed (such as the surface S1) to the surface of the optical sensor 140 (such as the upper surface S3) in a direction perpendicular to the substrate 110. D is the distance between the light-emitting element 120a and the light-emitting element 120b, for example, the minimum distance between the light-emitting element 120a and the light-emitting element 120b in a direction parallel to the substrate 110.

[0031] In some embodiments of the present disclosure, the optical sensor 140 may be a camera module. For example, the optical sensor 140 may include a lens 1401 and a housing 1402 for mounting the lens 1401. In some embodiments, if the width B of the housing 1402 of the optical sensor 140 is greater than the distance D between the light emitting element 120a and the light emitting element 120b, at least a portion of the housing 1402 may be embedded in the portion T1b of the substrate 110 where the optical sensor is disposed, by means of a composite through hole T1 design. In this way, the optical sensor 140 may be fixed to the substrate 110 without increasing the distance D. In other embodiments, the optical sensor 140 may also adopt other structural configurations, which are not limited by the present disclosure.

[0032] Please refer to Figure 3 In the display panel 100A, the substrate 110 includes a through hole T2. The through hole T2 includes a portion T2b where the optical sensor is disposed and a hole portion T2a exposing the optical sensor 140. The through hole T2 is a single through hole, and the hole portion T2a and the portion T2b where the optical sensor is disposed in the through hole T2 have a single aperture. The width B' of the partial housing 1402 of the optical sensor 140 is smaller than the distance D between the light emitting element 120a and the light emitting element 120b. Therefore, the housing 1402 can be embedded in the through hole T2 of the substrate 110 through a single through hole design, but the present invention is not limited thereto. Figure 3 In the example, the hole depth is the distance from the surface S1 to the upper surface S3 of the optical sensor 140 (H defined above), which is, for example, 0.

[0033] Please refer to Figure 4In the display panel 100B, the substrate 110 includes a through hole T3. The through hole T3 includes a portion T3b where the optical sensor is set and a hole portion T3a that exposes the optical sensor 140. The through hole T3 is a single through hole, and the hole portion T3a and the portion T3b where the optical sensor is set in the through hole T3 have a single aperture. In some embodiments, there is a larger distance D' between the light-emitting element 120a and the light-emitting element 120b (for example: the display panel 100B has a larger pixel pitch or a lower resolution than the display panel 100), and the distance D' is greater than the width B of the housing 1402 of the optical sensor 140. Therefore, in the display panel 100B, a through hole T3 with a larger aperture can be set between the light-emitting element 120a and the light-emitting element 120b, and the optical sensor 140 can be set corresponding to the through hole T3 by setting the housing 1402 in the through hole T3, but it is not limited to this. Figure 4 In the example, the hole depth is the distance from the surface S1 to the upper surface S3 of the optical sensor 140 (H defined above), which is, for example, 0.

[0034] Please refer to Figure 5 In the display panel 100C, the optical sensor 140 has a viewing angle θ, wherein the viewing angle θ is, for example, In other words, the distance H from the surface S1 to the upper surface S3 of the optical sensor 140 and the distance D between the light emitting element 120a and the light emitting element 120b can be designed according to the light receiving capability (viewing angle θ) of the optical sensor 140.

[0035] Figures 6 to 8 yes Figure 1 Various top views of the display panel in . Please refer to Figure 6 , the display panel 100 may include a plurality of light emitting elements 120 disposed on a surface S1 of a substrate 110. The plurality of light emitting elements 120 may be arranged in an array in a direction parallel to the substrate 110 (e.g., a first direction D1 and a second direction D2). The second direction D2 intersects the first direction D1, and the second direction D2 may be, for example, perpendicular to the first direction D1, but is not limited thereto. The first direction D1 may be a horizontal direction facing a user of the display panel 100. The second direction D2 may be a vertical direction facing a user of the display panel 100.

[0036] like Figure 6As shown, in the display panel 100, the through hole T1 may be located in a region between two light-emitting elements (such as the light-emitting element 120a and the light-emitting element 120b) among the plurality of light-emitting elements 120. The light-emitting element 120a and the light-emitting element 120b are, for example, adjacent light-emitting elements 120 in the diagonal direction D3. The diagonal direction D3 is a diagonal direction between the first direction D1 and the second direction D2. For example, the through hole T1 may be located in a region between four light-emitting elements 120. Alternatively, the through hole T1 may be located in a region between six, eight or more light-emitting elements 120.

[0037] Please refer to Figure 7 In the display panel 100D, the through hole T4 is located in a region between two light emitting elements (such as the light emitting element 120a and the light emitting element 120b) among the plurality of light emitting elements 120. The light emitting element 120a and the light emitting element 120b are, for example, adjacent light emitting elements 120 in a horizontal direction (such as the first direction D1).

[0038] Please refer to Figure 8 In the display panel 100E, the through hole T5 is located in a region between two light emitting elements (such as the light emitting element 120a and the light emitting element 120b) among the plurality of light emitting elements 120. The light emitting element 120a and the light emitting element 120b are, for example, adjacent light emitting elements 120 in a vertical direction (such as the second direction D2).

[0039] Fig. 9 is a schematic diagram of a spliced ​​display according to some embodiments of the present disclosure. Fig. 9 , the spliced ​​display 10A may include a plurality of display panels DP. In some embodiments, some of the plurality of display panels DP in the spliced ​​display 10A may have driving circuits electrically coupled to each other, so that some of the plurality of display panels DP in the spliced ​​display 10A may collaboratively display an overall or corresponding image.

[0040] like Fig. 9 As shown, the tiled display 10A may include Figure 1 , Figure 2 , Figure 6 The at least two display panels 100 are described. Through the optical sensor 140, the spliced ​​display 10A can obtain image data of the object to be photographed. The spliced ​​display 10A may also include Figure 3 The display panel 100A, Figure 4 The display panel 100B, Figure 5 The display panel 100C, Figure 7 The display panel 100D, Figure 8 The present disclosure is not limited to the display panel 100E or a combination of the above.

[0041] The spliced ​​display 10A may include one optical sensor 140, or may include multiple optical sensors 140. The spliced ​​display 10A may include multiple display panels including optical sensors 140, or may include one display panel including multiple optical sensors 140. Among them, multiple optical sensors 140 may be respectively arranged in different display panels DP, or multiple optical sensors 140 may be arranged on one display panel DP. The spliced ​​display 10A may also include a display panel without an optical sensor 140, and the present disclosure is not limited to this. Multiple optical sensors 140 may provide multiple shooting angles and a wider shooting range. For example, the spliced ​​display 10A may include an optical sensor 140a, an optical sensor 140b, and an optical sensor 140c, and the optical sensors 140a, 140b, and 140c may respectively obtain image data in the range Va, the range Vb, and the range Vc, so the optical sensors 140a, 140b, and 140c may respectively track and shoot objects to be photographed in different areas.

[0042] Fig.10 is a schematic diagram of another spliced ​​display according to some embodiments of the present disclosure. Fig.10 The spliced ​​display 10B may have a ring shape and may include a plurality of display panels DP. The plurality of display panels DP may include one or more curved display panels, but is not limited thereto. Fig.10 The spliced ​​display 10B is shown as being arranged inside the ring, but in other embodiments, the spliced ​​display may also be arranged outside the ring, or arranged in other shapes, and the present disclosure is not limited to this. In some embodiments, some of the multiple display panels DP in the spliced ​​display 10B may have driving circuits electrically coupled to each other, so that some of the multiple display panels DP of the spliced ​​display 10B can cooperate to display an overall or corresponding image screen.

[0043] like Fig.10 As shown, the spliced ​​display 10B may include Figure 1 , Figure 2 , Figure 6 At least one display panel 100 is described. Through the optical sensor 140, the spliced ​​display 10B can obtain image data of the object O to be photographed. The spliced ​​display 10B may also include Figure 3 The display panel 100A, Figure 4 The display panel 100B of FIG. 100C of FIG. ... Figure 7 The display panel 100D, Figure 8 The present disclosure is not limited to the display panel 100E or a combination of the above.

[0044] The spliced ​​display 10B may include one optical sensor 140, or may include multiple optical sensors 140. The spliced ​​display 10B may include multiple display panels including optical sensors 140, or may include one display panel including multiple optical sensors 140. Among them, multiple optical sensors 140 may be respectively arranged in different display panels, or multiple optical sensors 140 may be arranged on one display panel. The spliced ​​display 10B may also include a display panel without an optical sensor 140, and the present disclosure does not limit this. Multiple optical sensors 140 can provide multiple shooting angles and a wider shooting range. For example, the multiple optical sensors 140 of the spliced ​​display 10B can obtain a three-dimensional image of the object O to be photographed, and the obtained three-dimensional image can be further combined with the display screen of the spliced ​​display 10B, and a real-time virtual reality image screen can be presented. In some embodiments, the spliced ​​display including an optical sensor can also integrate the billboard system with the monitoring system.

[0045] In summary, in the embodiments disclosed herein, by disposing an optical sensor in the display area of ​​a display panel or a spliced ​​display (the area between two light-emitting elements), it is possible to improve the technical problems of wasting space caused by an external camera lens, affecting the appearance, or the user being unable to look directly at the screen and the image acquisition device at the same time when using the image acquisition device, thereby helping to optimize the circuit configuration or user experience in the peripheral area of ​​the panel.

[0046] The above embodiments are only used to illustrate the technical solutions of the present disclosure, rather than to limit them. Although the present disclosure has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein by equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present disclosure.

[0047] Although the embodiments and advantages of the present disclosure have been disclosed as above, it should be understood that any person skilled in the art can make changes, substitutions and modifications without departing from the spirit and scope of the present disclosure, and the features between the embodiments can be arbitrarily mixed and replaced with each other to form other new embodiments. In addition, the scope of protection of the present disclosure is not limited to the processes, machines, manufacturing, material compositions, devices, methods and steps in the specific embodiments described in the specification. Any person skilled in the art can understand the current or future developed processes, machines, manufacturing, material compositions, devices, methods and steps from the disclosure of the present disclosure, as long as they can implement substantially the same functions or obtain substantially the same results in the embodiments described herein, they can all be used according to the present disclosure. Therefore, the scope of protection of the present disclosure includes the above-mentioned processes, machines, manufacturing, material compositions, devices, methods and steps. In addition, each claim constitutes a separate embodiment, and the scope of protection of the present disclosure also includes the combination of each claim and embodiment. The scope of protection of the present disclosure shall be determined by the attached claims.

Claims

1. A display panel, characterized in that: include: a substrate, the substrate comprising a through hole; an optical sensor, at least a portion of the optical sensor overlaps the through hole; as well as a plurality of light emitting elements, wherein the substrate is disposed between the plurality of light emitting elements and the optical sensor, The substrate includes a first layer and a second layer, the first layer includes a first hole of the through hole, the second layer includes a second hole of the through hole, and in one direction, a second width of the second hole is greater than a first width of the first hole.

2. The display panel according to claim 1, characterized in that: Compared with the first hole, the second hole is farther away from the plurality of light emitting elements.

3. The display panel according to claim 1, characterized in that: At least a portion of the plurality of light emitting elements overlaps the through hole of the substrate.

4. The display panel according to claim 1, characterized in that: The first width of the first hole of the first layer is greater than the depth of the first hole.

5. The display panel according to claim 1, characterized in that: The invention further comprises a driving circuit which is arranged on the substrate and electrically connected to the plurality of light emitting elements.

6. The display panel according to claim 1, characterized in that: The optical sensor includes a camera module.

7. The display panel according to claim 1, characterized in that: The plurality of light emitting elements are a plurality of light emitting diodes.

8. The display panel according to claim 7, characterized in that: The plurality of light emitting elements are a plurality of organic light emitting diodes.

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