CN113330576A - Display panel and electronic device - Google Patents
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- CN113330576A CN113330576A CN201980079831.3A CN201980079831A CN113330576A CN 113330576 A CN113330576 A CN 113330576A CN 201980079831 A CN201980079831 A CN 201980079831A CN 113330576 A CN113330576 A CN 113330576A
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- 239000010410 layer Substances 0.000 claims description 88
- 239000000758 substrate Substances 0.000 claims description 25
- 239000002346 layers by function Substances 0.000 claims description 24
- 230000003287 optical effect Effects 0.000 claims description 16
- 239000000463 material Substances 0.000 claims description 8
- 238000002310 reflectometry Methods 0.000 claims description 6
- 230000003667 anti-reflective effect Effects 0.000 claims 1
- 206010034960 Photophobia Diseases 0.000 abstract description 5
- 208000013469 light sensitivity Diseases 0.000 abstract description 5
- 238000010586 diagram Methods 0.000 description 22
- 238000000034 method Methods 0.000 description 4
- 229920001621 AMOLED Polymers 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
Abstract
The invention provides a display panel (10), which comprises a light collecting device (100) and a light sensor (200), wherein the light collecting device (100) comprises a first surface (110) and a second surface (120) which are oppositely arranged, and a third surface (130) which is connected with the first surface (110) and the second surface (120), at least part of external light enters the light collecting device (100) from the first surface (110), enters the third surface (130) from the inside of the light collecting device (100), is reflected by the third surface (130), and then exits to the light sensor (200) through the second surface (120). The invention also provides an electronic device. The display panel provided by the invention can improve the intensity of light incident to the light sensor by reflecting at least part of external light through the third surface in the light collecting device, thereby improving the light sensitivity of the light sensor.
Description
The invention belongs to the technical field of display, and particularly relates to a display panel and an electronic device.
With the development of display technology, display panels are widely used in electronic devices such as various media, games, multimedia teaching, airplanes, engineering vehicles, and the like. In accordance with the usage requirements of each electronic device, it is a trend to integrate various functional elements in the display panel. For example, a light sensor is integrated in the display panel, the light sensor acquires light information, and the display panel further implements functions of optical fingerprint recognition, environment sensing, distance sensing, and the like according to the acquired light information. However, the display panel includes a plurality of films, such as a polarizer, a cathode in a light emitting functional layer, an anode, or a non-transparent organic film, and the like, and the existence of these films makes the light transmitted to the optical sensor after the external light is incident from the surface of the display panel very little, so that the light sensitivity of the optical sensor during operation is affected due to insufficient light signals received by the optical sensor.
Disclosure of Invention
Accordingly, the present invention provides a display panel capable of increasing the external light of an incident light sensor. The specific technical scheme is as follows.
A display panel comprises a light collecting device and a light sensor, wherein the light collecting device comprises a first surface, a second surface and a third surface, the first surface and the second surface are oppositely arranged, the third surface is connected with the first surface and the second surface, at least part of external light enters the light collecting device from the first surface, enters the third surface from the inside of the light collecting device, is reflected by the third surface and then exits to the light sensor through the second surface.
Preferably, the area of the first surface is larger than the area of the second surface.
Preferably, the light sensor includes a fourth surface, an area of the fourth surface is greater than or equal to an area of the second surface, and the second surface is attached to the fourth surface.
Preferably, the light collecting device is made of a material with a preset refractive index, so that when external light and a vertical line of the first surface are incident into the light collecting device at a first preset angle, the external light entering the light collecting device can be totally reflected by the third surface.
Preferably, the second surface includes a first edge line and a second edge line which are oppositely disposed, the third surface intersects with the second surface at the first edge line, at least a first preset distance is provided between each position of the second edge line and each position of the first edge line, a second preset angle is provided between the third surface and the second surface, and a second preset distance is provided between the first surface and the second surface, so that external light incident from the third surface is totally reflected and then exits to the optical sensor through the second surface.
Preferably, the first surface and the second surface are one of circular, elliptical, triangular or polygonal.
Preferably, an antireflection film is arranged on the first surface.
Preferably, a plurality of microstructures are arranged on the first surface, each microstructure comprises a fifth surface facing away from the first surface, the fifth surface is an arc surface, and the curvature center of the arc surface faces the first surface.
Preferably, the reflectivity of the microstructure is less than the reflectivity of the light collecting device.
Preferably, the display panel further includes a reflective plate disposed around the light collecting device to reflect external light emitted from the light collecting device without being incident on the light sensor back to the light collecting device.
Preferably, the display panel further includes a display functional layer, the display functional layer is disposed on a side of the light collecting device far away from the optical sensor, external light enters the light collecting device from the display functional layer, the display functional layer includes light emitting units disposed at intervals, and orthographic projections of the light collecting device and the light emitting units on the display functional layer are at least partially not overlapped.
Preferably, the light emitting unit includes at least one sub light emitting unit, and the light collecting device and the orthographic projection of the sub light emitting unit on the display function layer are at least partially non-overlapped.
Preferably, the display panel further includes a cover layer, a touch layer, a polarizer, a display function layer and a substrate, the display function layer is disposed on one side of the substrate, the polarizer is disposed on one side of the display function layer away from the substrate, the touch layer is disposed on one side of the polarizer away from the display function layer, the cover layer is disposed on one side of the touch layer away from the polarizer, and external light is incident from the cover layer onto the light collecting device in the display panel;
the light collecting device is arranged on one side of the substrate far away from the display functional layer, and the light sensor is arranged on the surface of the light collecting device far away from the substrate; or
The light collecting device and the light sensor are disposed between the display functional layer and the substrate, and the light sensor is disposed adjacent to the substrate compared to the light collecting device; or
The light collecting device and the light sensor are arranged between the polarizer and the display functional layer, and the light sensor is arranged adjacent to the display functional layer compared with the light collecting device; or
The light collecting device and the light sensor are arranged between the touch layer and the polaroid, and the light sensor is arranged close to the polaroid compared with the light collecting device; or
The light collecting device and the light sensor are arranged between the covering layer and the touch layer, and the light sensor is arranged close to the touch layer compared with the light collecting device.
Preferably, the display panel further includes a light collecting layer provided with the light collecting device and the light sensor, and the light collecting layer includes a flat layer provided adjacent to the light collecting device and the light sensor.
The invention also provides an electronic device comprising the display panel.
The invention has the beneficial effects that: the display panel provided by the invention can improve the intensity of light incident to the light sensor by reflecting at least part of external light through the third surface in the light collecting device, thereby improving the light sensitivity of the light sensor.
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art that other drawings can be obtained according to these drawings without inventive labor.
Fig. 1 is a schematic structural diagram of a display panel according to a first embodiment of the present invention.
Fig. 2 is a schematic structural diagram and an optical path diagram of a light collecting device and a light sensor in a display panel according to a first embodiment of the present invention.
Fig. 3 is a schematic structural diagram of another two light collecting devices and light sensors in a display panel according to a first embodiment of the present invention.
Fig. 4 is a schematic structural diagram and an optical path diagram of a light collecting device and a light sensor in a display panel according to a second embodiment of the present invention.
Fig. 5 is a schematic structural diagram of a light collecting device in a display panel according to a second embodiment of the present invention.
Fig. 6 is a schematic structural diagram of a light collecting device and a light sensor in a display panel according to a third embodiment of the present invention.
Fig. 7 is a schematic structural diagram of a light collecting device and a light sensor in a display panel according to a fourth embodiment of the present invention.
Fig. 8 is a schematic structural diagram of a light collecting device and a light sensor in a display panel according to a fifth embodiment of the present invention.
Fig. 9 is a schematic structural diagram of a display panel according to a sixth embodiment of the present invention.
Fig. 10 is a schematic structural diagram of another display panel according to a sixth embodiment of the present invention.
Fig. 11 is a schematic structural diagram of a display panel according to a seventh embodiment of the invention.
Fig. 12 is a schematic structural diagram of a display panel according to an eighth embodiment of the present invention.
Fig. 13 is a schematic structural diagram of a display panel according to a ninth embodiment of the invention.
Fig. 14 is a schematic structural diagram of a display panel according to a tenth embodiment of the present invention.
Fig. 15 is a schematic structural diagram of a display panel according to an eleventh embodiment of the invention.
Fig. 16 is a schematic structural diagram of a display panel according to a twelfth embodiment of the present invention.
Fig. 17 is a schematic structural diagram of a display panel according to a thirteenth embodiment of the present invention.
Fig. 18 is a schematic structural diagram of an electronic panel according to the present invention.
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The terms "first," "second," and the like in the description and in the claims, and in the drawings, are used for distinguishing between different objects and not necessarily for describing a particular sequential order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those steps or elements listed, but may alternatively include other steps or elements not listed, or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the invention. The appearances of the phrase in various places in the specification are not necessarily all referring to the same embodiment, nor are separate or alternative embodiments mutually exclusive of other embodiments. It is explicitly and implicitly understood by one skilled in the art that the embodiments described herein can be combined with other embodiments.
Referring to fig. 1 and fig. 2, a display panel 10 according to a first embodiment of the present invention includes a light collecting device 100 and a light sensor 200, where the light collecting device 100 includes a first surface 110 and a second surface 120 disposed opposite to each other, and a third surface 130 connecting the first surface 110 and the second surface 120, and at least a portion of external light L enters the light collecting device 100 from the first surface 110, enters the third surface 130 from the inside of the light collecting device 100, is reflected by the third surface 130, and then exits to the light sensor 200 through the second surface 120.
The first surface 110 is a surface from which external light enters the light collecting device 100 from the display panel 10, and generally, the external light enters the light collecting device 100 from the first surface 110, passes through the interior of the light collecting device 100 to reach the second surface 120 opposite to the first surface 110, and exits through the second surface 120 to enter the light sensor 200. In the embodiment of the present invention, the third surface 130 is disposed between the first surface 110 and the second surface 120, so that at least a portion of the external light not directly incident on the second surface 120 is incident on the third surface 130, and at least a portion of the external light is reflected by the third surface 130 after being incident on the third surface 130, and the reflected external light is emitted to the light sensor 200 through the second surface 120. That is, the external light reflected through the third surface 130 is incident into the light sensor 200 again. Preferably, the external light is totally reflected by the third surface 130 and then exits to the light sensor 200 through the second surface 120. If the external light is totally reflected by the third surface 130, the total light exits from the third surface 130, which further increases the intensity of the light incident into the light sensor 200.
It is understood that the display panel 10 includes other film layers, such as a cover layer, a touch layer, a display function layer or a substrate, etc., in fig. 1, the light collecting device 100 and the light sensor 200 are disposed below the substrate 800 for illustrating the light collecting device 100 and the light sensor 200 disposed in the display panel 10, and in other embodiments, the light collecting device 100 and the light sensor 200 may also be disposed between other film layers (see fig. 11 to 16).
The display panel 10 provided by the present invention totally reflects at least a portion of the external light through the third surface 130 of the light collecting device 100, so as to improve the intensity of the light incident to the light sensor 200, and further improve the light sensitivity of the light sensor 200.
Any device in the display panel 10 that needs to receive external light may be used, including but not limited to a light sensor for optical fingerprint recognition, ambient light sensing, distance monitoring, and the like. The display panel 10 may be a liquid crystal display panel, an organic electroluminescent display panel, or a flexible display panel.
It should be noted that the structural shape of the light collecting device 100 is not limited, or the height between the first surface 110 and the second surface 120, the included angle between the third surface 130 and the second surface 120, the size of the second surface 120, the material of the light collecting device 100, and the like are not limited, as long as at least part of the external light can be emitted to the light sensor 200 through the second surface 120 after being totally reflected by the third surface 130 after being incident to the third surface 130. Referring to fig. 3 a and b, fig. 3 shows two structures and an optical path diagram, and the structures of the light collecting device 100 in the present invention are not limited to the two structures in fig. 3.
Referring again to fig. 2, in a further embodiment, the area of the first surface 110 is larger than the area of the second surface 120. The first surface 110 is a surface on which the external light is incident to the light collecting device 100, and the area of the first surface 110 is set to be larger than that of the second surface 120, so that the external light incident to the first surface 110 can be increased.
Preferably, the first surface 110 is planar and the second surface 120 is planar, as shown in fig. 2. When the first surface 110 and the second surface 120 are both planar and the area of the first surface 110 is larger than that of the second surface 120, an included angle is formed between the third surface 130 and the second surface 120. As shown in the optical path diagram of fig. 2, after the external light L is incident on the first surface 110, part of the external light L1 is perpendicularly incident on the light collecting device 100, directly reaches the second surface 120, and then exits to the optical sensor 200 through the second surface 120; part of the external light L2 is perpendicularly incident into the light collecting device 100, reaches the third surface 130, and then is reflected by the third surface 130 and then exits to the light sensor 200 through the second surface 120. In this embodiment, the external light can reach the light sensor 200 through at least the two paths, so as to increase the external light incident on the light sensor 200.
In a further embodiment, the light sensor 200 includes a fourth surface 210, an area of the fourth surface 210 is greater than or equal to an area of the second surface 120, and the second surface 120 is attached to the fourth surface 210. The area of the fourth surface 210 is set to be greater than or equal to the area of the second surface 120, so that the light emitted from the second surface 120 can be completely incident on the fourth surface 210 and received by the light sensor 200, and if the area of the fourth surface 210 is smaller than the area of the second surface 120, a part of the light is emitted from a region where the second surface 120 and the fourth surface 210 do not overlap and cannot be incident on the fourth surface 210, thereby causing light loss. The second surface 120 is attached to the fourth surface 210, so that interface reflection can be reduced and light incident on the fourth surface 210 can be prevented from being lost compared with the arrangement that the second surface 120 and the fourth surface 210 have a gap.
Referring to fig. 4, a display panel 10a is provided according to a second embodiment of the present invention, and fig. 4 only shows a light collecting device 100 and a light sensor 200, it can be understood that other functional film layers are also included in the display panel 10 a. In the present embodiment, the light collecting device 100 is made of a material with a predetermined refractive index, so that when the external light is incident into the light collecting device 100 at a first predetermined angle β with respect to the vertical line O1 of the first surface 110, the external light entering the light collecting device 100 can be totally reflected by the third surface 130.
The first preset angle may be a specific angle or an angle range. When the predetermined refractive indexes of the light collecting device 100 are different, the first predetermined angle is also different. Preferably, the light collecting device 100 is made of a material having a predetermined refractive index that enables external light to be incident into the light collecting device 100 at a first predetermined angle in a maximum range and to be totally reflected by the third surface 130. That is, when selecting the material of the light collecting device 100, it is preferable to select the material that can ensure that the external light can be incident into the light collecting device 100 at the first predetermined angle with the maximum range and can be totally reflected by the third surface 130, and the refractive index of the material is the predetermined refractive index. The above arrangement of this embodiment can ensure that the external light is incident on the first surface 110 at the maximum incident angle range, and further increase the external light which is incident on the first surface 110 and can be totally reflected by the third surface 130.
In a further embodiment, the second surface 120 includes a first edge line 121 and a second edge line 122 disposed opposite to each other, the third surface 130 intersects the second surface 120 at the first edge line 121, each position of the second edge line 122 has at least a first predetermined distance D from each position of the first edge line 121, the third surface 130 has a second predetermined angle θ with the second surface 120, and the first surface 110 has a second predetermined distance H from the second surface 120, so that the external light L incident from the third surface 130 is totally reflected and then exits to the optical sensor 200 through the second surface 120. That is, by setting the above conditions, the external light L can be more totally reflected by the third surface 130 and then emitted to the light sensor 200 through the second surface 120. The details are illustrated by the following examples.
Referring to fig. 5, in the present embodiment, the light collecting device 100 is a circular truncated pyramid, that is, the first surface 110 and the second surface 120 are circular, and the first surface 110 and the second surface 120 are disposed in parallel, wherein the first edge line 121 and the second edge line 122 in the second surface 120 are connected end to form a circle. In this embodiment, the third surface 130 is a surface between the first surface 110 and the second surface 120, and when the third surface 130 is spread, the third surface 130 is a sector. The light collecting device 100 in fig. 4 is a cross-sectional view of the light collecting device 100 in fig. 5 along a diameter of the first surface 110.
As shown in fig. 5, the first surface 110 and the third surface 130 intersect at a third edge line 123, and the third edge line 123 includes an edge point a. When the external light L is incident on the first surface 110 from the edge point a, it is also substantially incident on the uppermost edge of the third surface 130, and the incident angle range of the external light L, which is incident on the edge point a, can be totally reflected by the third surface 130 and then exits to the light sensor 200 through the second surface 120, is described below by taking the example that the external light L is incident on the edge point a.
Assuming that the preset refractive index of the light collecting device 100 is n and the critical angle of total reflection is α, according to the critical angle calculation formula: sin α is 1/n, i.e., α is arcsin 1/n. When n is 1.5, α is calculated to be 41.8 °.
The first preset distance is set to be D, the second preset distance is set to be H, the first preset angle beta is set to be theta, and the second preset angle is set to be theta. Wherein D, H is sized to ensure that ambient light totally reflected by the third surface 130 is incident on the second surface 120 and is incident on the light sensor 200 via the second surface 120.
As shown in fig. 4, one point of the second surface 120 is taken as an extension line m, and an included angle between the extension line m and the third surface 130 is θ; a vertical line O1 of the first surface 110 is made at the edge point A, and an included angle between the external light L and the vertical line O1 is beta; a vertical line O2 is formed on the edge point a of the third surface 130, wherein the vertical line O2 is a normal O2 of the external light L incident on the third surface 130 from the edge point a, and an included angle between the external light L and the normal O2 is γ, that is, when the external light L is totally reflected by the third surface 130, γ is: alpha is more than or equal to gamma and less than or equal to 90 degrees.
Since the first surface 110 is parallel to the second surface 120, the included angle between the first surface 110 and the third surface 130 is θ, and the included angle between the vertical line O1 and the normal line O2 is θ, that is, γ ═ β + θ, that is, α ≦ β + θ ≦ 90 °, and further, α - θ ≦ β ≦ 90 ° - θ.
When n is 1.5, α is arcsin 1/n is 41.8 °, γ has the following size: γ is not less than 41.8 ° and not more than 90 °, wherein γ is not less than β + θ, i.e., not less than 41.8 ° and not more than β + θ and not more than 90 °, i.e., not less than 41.8 ° - θ and not more than 90 ° - θ, i.e., when the first preset angle β satisfies the above condition, it can be ensured that the external light L incident from the edge point a is totally reflected by the third surface 130.
In the present embodiment, θ is set to 30 °, where 11.8 ° ≦ β ≦ 60 °, that is, can be totally reflected by the third surface 130 when the external light L is incident to the edge point a at the first preset angle β between 11.8 ° and 60 °.
It should be noted that, in the above embodiment, the sizes of the first preset distance D and the second preset distance H are not limited, as long as when the second preset angle is θ, the external light L incident from the edge point a within the range of the first preset angle β can be incident to the second surface 120 after being totally reflected by the third surface 130, and can be incident to the optical sensor 200 after being emitted through the second surface 120. The first preset distance D and the second preset distance H can be set according to actual product requirements.
It should be noted that, in the above embodiment, only the edge point a is used to illustrate the first predetermined angle range within which the external light L enters the third surface 130 and is totally reflected by the third surface 130. When the external light is incident from other positions of the first surface 110, the parameters of the light collecting device 100 can be set according to practical requirements, so as to achieve the purpose that the external light can be totally reflected by the third surface 130 after being incident on the first surface 110 in a range different from or the same as the first predetermined angle range in the above embodiment.
In other embodiments, when the predetermined refractive index n of the light collecting device 100 is different, the critical angle α of the total reflection is also different, and the range of the first predetermined angle β at which the external light L incident on the first surface 110 can be totally reflected by the third surface 130 is also different. The predetermined refractive index n of the light collecting device 100 can be set according to actual needs.
In other embodiments, the first surface 110 and the second surface 120 may also be one of an ellipse, a triangle, or a polygon.
Referring to fig. 6, a display panel 10b is provided according to a third embodiment of the present invention, in this embodiment, an antireflection film 140 is disposed on the first surface 110 of the light collecting device 100. The antireflection film 140 can reduce the reflection of the external light L on the first surface 110, increase the external light incident on the light collecting device 200, and further increase the intensity of the light incident on the light sensor 200. It is understood that other functional film layers are also included in the display panel 10b, and only the light collecting device 100 and the light sensor 200 are shown in fig. 6 for illustration.
Referring to fig. 7, a display panel 10c is provided according to a fourth embodiment of the present invention. In this embodiment, a plurality of microstructures 150 are disposed on the first surface 110, each microstructure 150 includes a fifth surface 151 facing away from the first surface 110, the fifth surface 151 is an arc surface, and a curvature center of the arc surface faces the first surface 110. The microstructure 150 having the above structure is disposed on the first surface 110, so that the incident range of light incident on the light collecting device 100 can be increased, thereby increasing the external light reaching the first surface 110. It is understood that other functional film layers are also included in the display panel 10c, and only the light collecting device 100 and the light sensor 200 are shown in fig. 7 for illustration.
In a further embodiment, the reflectivity of the microstructures 150 is less than the reflectivity of the light collecting device 100. This arrangement further increases the amount of ambient light incident on the light collecting device 100.
Referring to fig. 8, a display panel 10d according to a fifth embodiment of the present invention is provided, in which the display panel 10d further includes a reflective plate 300, and the reflective plate 300 is disposed around the light collecting device 100 for reflecting the external light emitted from the light collecting device 100 and not incident on the light sensor 200 back to the light collecting device 100.
Wherein the external light emitted from the light collecting device 100 without being incident on the light sensor 200 includes a portion of the external light emitted from the light collecting device 100, which is incident on the third surface 130 without being totally reflected by the third surface 130, and further emitted from the third surface 130; and the external light emitted from the light collecting device 100 after being totally reflected by the third surface 130 but not being incident to the light sensor 200 via the second surface 120 is also included.
By adding the reflection plate 300, the loss of the external light can be reduced, and the utilization rate of the external light incident into the light collecting device 100 can be further improved, so that more external light can be incident into the light sensor 200.
It is understood that other functional film layers are also included in the display panel 10d, and only the light collecting device 100, the light sensor 200, and the reflective plate 300 are shown in fig. 8 for illustration. Only one of the positional structural relationships of the reflective plate 300 and the light collecting device 100 is shown in fig. 8, and in other embodiments, the structure of the reflective plate 300 can be configured according to the structure and product requirements of the light collecting device 100.
Referring to fig. 9, a sixth embodiment of the invention provides a display panel 10e, where the display panel 10e further includes a display function layer 400, the display function layer 400 is disposed on a side of the light collecting device 100 away from the optical sensor 200, external light L from the display function layer 400 is incident on the light collecting device 100, the display function layer 400 includes light emitting units 410 disposed at intervals, and orthographic projections of the light collecting device 100 and the light emitting units 410 on the display function layer 400 are at least partially non-overlapped.
The display function layer 400 is a layer for emitting light in the display panel 10e, and the light emitting unit 410 has a size of at least one pixel. When light emitted from the light emitting unit 410 exits from the display function layer 400, it may interfere with the incident of external light onto the light collecting device 100, and in addition, the light emitting unit 410 may block the propagation path of the external light L incident onto the light collecting device 100 from the surface of the display panel 10 e. In the present embodiment, the light collecting device 100 and the light emitting units 410 are at least partially disposed in a staggered manner, so that the external light L can be incident on the light collecting device 100 from the gaps between the light emitting units 410.
Preferably, the light collecting device 100 and the light sensor 200 are made to have micron-sized dimensions, and the orthographic projections of the light collecting device 100 and the light emitting unit 410 on the display function layer 400 are not overlapped at all, so as to further reduce the interference of the light emitted from the light emitting unit 410 to the light collecting device 100 receiving the external light.
Referring to fig. 10, in a further embodiment, the light emitting unit 410 includes at least one sub-light emitting unit 411, and the orthographic projections of the light collecting device 100 and the sub-light emitting unit 411 on the display function layer 400 are at least partially non-overlapped.
The sub-light emitting units 411 are at least one sub-pixel in size, such as a red sub-light emitting unit, a green sub-light emitting unit, or a blue sub-light emitting unit, that is, the light collecting device 100 and the sub-light emitting units 411 with the sub-pixel in size are at least partially staggered, so that external light can be incident on the light collecting device 100 from gaps between the sub-light emitting units 411, interference of light emitted by the light emitting units 410 on the light collecting device 100 for receiving the external light is further reduced, and the problem that the light emitting units 410 block propagation paths of the external light L incident on the light collecting device 100 from the surface of the display panel 10e is avoided.
Preferably, when the light emitting unit 410 includes at least two sub light emitting units 411, the size of the light collecting device 100 is set to be equal to or smaller than the size of the gap between the sub light emitting units 411 so that the orthographic projections of the light collecting device 100 and the sub light emitting units 411 on the display functional layer 400 do not overlap at all. When the light emitting units 410 include only one sub light emitting unit 411, the size of the light collecting device 100 is set to be equal to or smaller than the size of the gap between the sub light emitting units 411 in the adjacent two light emitting units 410 so that the orthographic projections of the light collecting device 100 and the sub light emitting units 411 in the adjacent two light emitting units 410 on the display function layer 400 are not overlapped at all.
Referring to fig. 11, a display panel 10f according to a seventh embodiment of the present invention further includes a cover layer 500, a touch layer 600, a polarizer 700, a display function layer 400 and a substrate 800, wherein the display function layer 400 is disposed on one side of the substrate 800, the polarizer 700 is disposed on one side of the display function layer 400 away from the substrate 800, the touch layer 600 is disposed on one side of the polarizer 700 away from the display function layer 400, the cover layer 500 is disposed on one side of the touch layer 600 away from the polarizer 700, and external light is incident on the light collecting device 100 in the display panel 10f from the cover layer 500. The polarizer 700 is used to filter light emitted from the display function layer 400, the touch layer 600 is used to implement a touch sensing function of the display panel 10f, and the cover layer 500 is used to encapsulate a film layer located below the touch layer to protect the film layer below the touch layer.
In the present embodiment, the light collecting device 100 is disposed on a side of the substrate 800 away from the display functional layer 400, and the light sensor 200 is disposed on a surface of the light collecting device 100 away from the substrate 800.
Referring to fig. 12, an eighth embodiment of the present invention provides a display panel 10g, which is different from the seventh embodiment in that in the present embodiment, the light collecting device 100 and the light sensor 200 are disposed between the display function layer 400 and the substrate 800, and the light sensor 200 is disposed adjacent to the substrate 800 compared to the light collecting device 100.
Referring to fig. 13, a display panel 10h is provided according to a ninth embodiment of the present invention, which is different from the seventh embodiment in that the light collecting device 100 and the light sensor 200 are disposed between the polarizer 700 and the display functional layer 400, and the light sensor 200 is disposed adjacent to the display functional layer 400 compared to the light collecting device 100.
Referring to fig. 14, a display panel 10i is provided in a tenth embodiment of the present invention, which is different from the seventh embodiment in that in the present embodiment, the light collecting device 100 and the light sensor 200 are disposed between the touch layer 600 and the polarizer 700, and the light sensor 200 is disposed adjacent to the polarizer 700 compared to the light collecting device 100.
Referring to fig. 15, an eleventh embodiment of the invention provides a display panel 10j, which is different from the seventh embodiment in that in the present embodiment, the light collecting device 100 and the light sensor 200 are disposed between the cover layer 500 and the touch layer 600, and the light sensor 200 is disposed adjacent to the touch layer 600 compared to the light collecting device 100.
Referring to fig. 16, a display panel 10k according to a twelfth embodiment of the present invention further includes a light collecting layer 900 disposed on the display panel 10k, wherein the light collecting layer 900 includes a flat layer 1000 disposed adjacent to the light collecting device 100 and the light sensor 200.
Wherein the upper surface of the planarization layer 1000 is flush with the first surface 110 of the light collecting device 100, and the lower surface of the planarization layer 1000 is flush with the surface of the light sensor 200 away from the fourth surface 210, so that the upper and lower surfaces of the light collecting layer 900 are planarized.
When the light collecting device 100 and the light sensor 200 are disposed between any two layers of the display panel, since the light collecting device 100 and the light sensor 200 have a certain thickness, a step difference is formed between the upper layer and the lower layer adjacent to the light collecting device 100 and the light sensor 200, which results in an uneven display panel. In fig. 16, the light collecting device 100 and the light sensor 200 are shown disposed between the cover layer 500 and the touch layer 600.
Referring to fig. 17, a display panel 10l is provided in a thirteenth embodiment of the present invention, which is different from the seventh embodiment in that the number of the light collecting devices 100 and the light sensors 200 is plural in this embodiment. The present embodiment exemplifies the number of the light collecting device 100 and the light sensor 200 as three. In the present embodiment, the light collecting device 100 is disposed on a side of the substrate 800 away from the display functional layer 400, and the light sensor 200 is disposed on a surface of the light collecting device 100 away from the substrate 800. The two adjacent light collecting devices 100 and the light sensor 200 are arranged at intervals. The arrangement of the light collecting devices 100 and the light sensor 200 can further improve the intensity of light incident to the light sensor 200, thereby improving the light sensitivity of the light sensor 200.
Referring to fig. 18, the present invention further provides an electronic device 20, where the electronic device 20 includes the display panel 10 according to any of the above embodiments. The electronic device 20 may be, but not limited to, an electronic book, a smart Phone (e.g., an Android Phone, an iOS Phone, a Windows Phone), a tablet computer, a flexible palm computer, a flexible notebook computer, a Mobile Internet device (MID, Mobile Internet Devices), or a wearable device, or may be an Organic Light-Emitting Diode (OLED) electronic device, an Active Matrix Organic Light Emitting Diode (AMOLED) electronic device.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the present invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (15)
- A display panel is characterized in that the display panel comprises a light collecting device and a light sensor, the light collecting device comprises a first surface, a second surface and a third surface, the first surface and the second surface are arranged oppositely, the third surface is connected with the first surface and the second surface, at least part of external light enters the light collecting device from the first surface, enters the third surface from the light collecting device, is reflected by the third surface and then exits to the light sensor through the second surface.
- The display panel according to claim 1, wherein an area of the first surface is larger than an area of the second surface.
- The display panel of claim 2, wherein the light sensor comprises a fourth surface, the fourth surface having an area greater than or equal to an area of the second surface, the second surface being attached to the fourth surface.
- The display panel of claim 3, wherein the light collecting device is made of a material with a predetermined refractive index, such that when the external light is incident into the light collecting device at a first predetermined angle to a vertical line of the first surface, the external light entering into the light collecting device is totally reflected by the third surface.
- The display panel according to claim 4, wherein the second surface includes a first edge line and a second edge line opposite to each other, the third surface intersects the second surface at the first edge line, each position of the second edge line has at least a first predetermined distance from each position of the first edge line, the third surface has a second predetermined angle with the second surface, and the first surface and the second surface have a second predetermined distance therebetween, so that the external light incident from the third surface is totally reflected and then exits to the light sensor through the second surface.
- The display panel of claim 1, wherein the first surface and the second surface are one of circular, elliptical, triangular, or polygonal.
- The display panel of claim 1, wherein an anti-reflective film is disposed on the first surface.
- The display panel of claim 1, wherein the first surface has a plurality of microstructures thereon, the microstructures comprising a fifth surface facing away from the first surface, the fifth surface being a curved surface having a center of curvature facing the first surface.
- The display panel of claim 8, wherein the microstructures have a reflectivity less than a reflectivity of the light collecting devices.
- The display panel of claim 1, further comprising a reflective plate disposed around the light collecting device for reflecting ambient light emitted from the light collecting device without being incident on the light sensor back to the light collecting device.
- The display panel according to claim 1, further comprising a display functional layer disposed on a side of the light collecting device away from the optical sensor, wherein external light is incident on the light collecting device from the display functional layer, the display functional layer includes light emitting units disposed at intervals, and orthographic projections of the light emitting units on the display functional layer and the light collecting device are at least partially non-overlapped.
- The display panel of claim 11, wherein the light emitting unit comprises at least one sub light emitting unit, and the light collecting device is at least partially non-overlapping with an orthographic projection of the sub light emitting unit on the display functional layer.
- The display panel according to claim 1, further comprising a cover layer, a touch layer, a polarizer, a display function layer, and a substrate, wherein the display function layer is disposed on a side of the substrate, the polarizer is disposed on a side of the display function layer away from the substrate, the touch layer is disposed on a side of the polarizer away from the display function layer, the cover layer is disposed on a side of the touch layer away from the polarizer, and external light is incident on the light collecting device in the display panel from the cover layer;the light collecting device is arranged on one side of the substrate far away from the display functional layer, and the light sensor is arranged on the surface of the light collecting device far away from the substrate; orThe light collecting device and the light sensor are disposed between the display functional layer and the substrate, and the light sensor is disposed adjacent to the substrate compared to the light collecting device; orThe light collecting device and the light sensor are arranged between the polarizer and the display functional layer, and the light sensor is arranged adjacent to the display functional layer compared with the light collecting device; orThe light collecting device and the light sensor are arranged between the touch layer and the polaroid, and the light sensor is arranged close to the polaroid compared with the light collecting device; orThe light collecting device and the light sensor are arranged between the covering layer and the touch layer, and the light sensor is arranged close to the touch layer compared with the light collecting device.
- The display panel of claim 13, further comprising a light collecting layer disposed in the display panel, the light collecting layer comprising a planar layer disposed adjacent to the light collecting device and the light sensor.
- An electronic device, characterized in that the electronic device comprises a display panel according to any one of claims 1-14.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/088392 WO2020237436A1 (en) | 2019-05-24 | 2019-05-24 | Display panel and electronic apparatus |
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| CN113330576A true CN113330576A (en) | 2021-08-31 |
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| CN201980079831.3A Pending CN113330576A (en) | 2019-05-24 | 2019-05-24 | Display panel and electronic device |
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| WO (1) | WO2020237436A1 (en) |
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| CN115394191B (en) * | 2022-08-22 | 2023-12-05 | 京东方科技集团股份有限公司 | Display module and display device |
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|---|---|---|---|---|
| WO2014112904A1 (en) * | 2013-01-16 | 2014-07-24 | Flatfrog Laboratories Ab | Touch-sensing display panel |
| CN104426471A (en) * | 2013-09-10 | 2015-03-18 | 上海空间电源研究所 | Secondary condenser for condensation solar photovoltaic system |
| CN106526944A (en) * | 2017-01-24 | 2017-03-22 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN109447046A (en) * | 2018-12-27 | 2019-03-08 | 厦门天马微电子有限公司 | Display panel and display device |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103743723B (en) * | 2014-01-14 | 2016-01-13 | 中国人民解放军63750部队后勤部防检环监所 | A kind of high sensitivity bioluminescence detector |
| KR20180085423A (en) * | 2017-01-18 | 2018-07-27 | 삼성디스플레이 주식회사 | Display device |
| CN109145859B (en) * | 2018-09-04 | 2020-12-25 | 京东方科技集团股份有限公司 | Display panel, detection method thereof and display device |
-
2019
- 2019-05-24 WO PCT/CN2019/088392 patent/WO2020237436A1/en active Application Filing
- 2019-05-24 CN CN201980079831.3A patent/CN113330576A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2014112904A1 (en) * | 2013-01-16 | 2014-07-24 | Flatfrog Laboratories Ab | Touch-sensing display panel |
| CN104426471A (en) * | 2013-09-10 | 2015-03-18 | 上海空间电源研究所 | Secondary condenser for condensation solar photovoltaic system |
| CN106526944A (en) * | 2017-01-24 | 2017-03-22 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN109447046A (en) * | 2018-12-27 | 2019-03-08 | 厦门天马微电子有限公司 | Display panel and display device |
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