CN115755074A

CN115755074A - Display device and electronic apparatus

Info

Publication number: CN115755074A
Application number: CN202211340628.7A
Authority: CN
Inventors: 刘宏亮; 杨彦伟; 陆一锋; 邹颜
Original assignee: Core Technology Shenzhen Co ltd
Current assignee: Core Technology Shenzhen Co ltd
Priority date: 2022-10-29
Filing date: 2022-10-29
Publication date: 2023-03-07

Abstract

The application provides a display device and an electronic apparatus. Display device includes the display screen, photoelectric sensor and filter, the display screen has the non-display surface, photoelectric sensor locates the one side that is close to the non-display surface, photoelectric sensor includes the transmission piece and the receiving piece that the interval set up, the transmission piece is used for launching detection light, wherein, the wavelength that detects light is greater than or equal to 1300nm, the receiving piece is used for receiving detection light and shines to the measuring object by the reflection light that the reflection formed, filter locates in the display screen and corresponds the setting with photoelectric sensor, filter can be used to the outer ambient light of filtering reflection light, wherein, ambient light's wavelength is less than 1300nm. The application provides a display device is equipped with the light filtering piece in the display screen, can block the ambient light except that the reverberation line, avoids ambient light to be received by receiving the piece. The measurement accuracy of the photoelectric sensor is improved, and the measurement effect of the photoelectric sensor is further improved.

Description

Display device and electronic apparatus

Technical Field

The application relates to the technical field of distance measurement, in particular to a display device and electronic equipment.

Background

With the development of science and technology, the functions and applications of electronic devices are more and more abundant. The electronic device can be used for displaying pictures, and a photoelectric sensor is usually arranged on the electronic device, so that the distance between an object to be measured in front of the electronic device and the electronic device can be measured. Photoelectric sensor's transmitting piece can send and detect light, and photoelectric sensor's receiving piece can receive the light that detects light and reflect the formation at the determinand surface emission to measure determinand and display module's distance. However, in the related art electronic device, a part of the ambient light may irradiate the photo sensor and be received by the receiving part of the photo sensor, which reduces the measurement accuracy of the photo sensor, and further makes the measurement effect of the photo sensor poor.

Disclosure of Invention

An object of the application is to provide a display device and electronic equipment to in solving the electronic equipment of correlation technique, partial environment light can shine photoelectric sensor and be received by photoelectric sensor's receiving piece, reduces photoelectric sensor's measurement accuracy, and then makes photoelectric sensor's the not good technical problem of measuring effect.

In a first aspect, the present application provides a display device comprising:

a display screen having a non-display surface;

the photoelectric sensor is arranged on one side close to the non-display surface and comprises an emitting piece and a receiving piece which are arranged at intervals, the emitting piece is used for emitting detection light, the wavelength of the detection light is larger than or equal to 1300nm, and the receiving piece is used for receiving the reflection light formed by the reflection of the detection light on an object to be detected; and

the light filtering piece is arranged in the display screen and corresponds to the photoelectric sensor, the light filtering piece can be used for filtering out ambient light outside the reflected light, wherein the wavelength of the ambient light is less than 1300nm.

In the application's display device, set up the optical filtering piece through setting up in the display screen to improve photoelectric sensor's measurement accuracy. Firstly, the emitting piece emits detection light, part of the detection light penetrates through the display screen to an object to be detected and is reflected on the surface of the object to be detected to form reflection light, the receiving piece receives the reflection light, and the filter piece can be used for filtering out ambient light outside the reflection light to avoid the ambient light from being received by the receiving piece.

In the related art, the display screen is not provided with a light filtering part, partial ambient light can irradiate the photoelectric sensor and be received by the receiving part of the photoelectric sensor, and the measurement accuracy of the photoelectric sensor is reduced. The application provides a display device is equipped with the light filtering piece in the display screen, can block the ambient light except that the reverberation, avoids ambient light to be received by receiving the piece. The measurement accuracy of the photoelectric sensor is improved, and the measurement effect of the photoelectric sensor is further improved.

The display screen comprises a first part and a second part, the first part is located in a range where the photoelectric sensor receives optical signals, the second part surrounds the first part, the second part is located outside the range where the photoelectric sensor receives the optical signals, and the first part is internally provided with the optical filter.

The material of the light filtering piece is a light absorption material, the material of the light filtering piece comprises InGaAsP, and the light filtering piece can be used for absorbing the ambient light; the thickness of the light filtering piece is 0.5-3.0 μm.

The material of the filter is a light absorption material, the material of the filter comprises InP, and the filter can be used for absorbing the ambient light; the thickness of the filter is more than 3 μm.

The display screen further comprises a bearing substrate, a driving assembly and a light-emitting assembly, wherein the bearing substrate, the driving assembly and the light-emitting assembly are sequentially arranged, the driving assembly is arranged on the bearing substrate, the light-emitting assembly is arranged on one side, deviating from the bearing substrate, of the driving assembly, the light-emitting assembly is electrically connected with the driving assembly, the driving assembly is used for driving the light-emitting assembly to emit light, the bearing substrate is provided with the non-display surface, the light filtering piece and the bearing substrate are arranged on the same layer, or the light filtering piece is arranged in the bearing substrate of the first portion.

The bearing substrate comprises a first surface and a second surface which are arranged oppositely, and the first surface is used for bearing the driving assembly;

the display screen also comprises a buffer layer and a passivation layer;

the buffer layer is arranged on the second surface;

the light filtering piece is arranged on the surface of the buffer layer, which is far away from the bearing substrate;

the passivation layer is arranged on the surface of the light filtering piece, which is far away from the buffer layer.

Wherein the light emitting assembly includes:

a pixel defining layer having a plurality of pixel openings, and a plurality of pixel defining portions forming the pixel openings;

a plurality of light emitting units disposed within the pixel openings;

the light filtering piece is arranged on the inner surface of the pixel limiting part forming the pixel opening, and the end surface of the pixel limiting part departing from the bearing substrate; and

an encapsulation layer disposed on a surface of the pixel defining layer.

Wherein the optical filter has a plurality of pixel openings, and a plurality of optical filter portions forming the pixel openings;

the light emitting assembly includes:

a plurality of light emitting units disposed within the pixel openings; and

and the packaging layer is arranged on the surfaces of the light filtering piece and the plurality of light emitting units.

Wherein, the light emitting component includes:

a pixel defining layer having a plurality of pixel openings and a plurality of pixel defining portions forming the pixel openings;

a plurality of light emitting units disposed within the pixel openings;

the packaging layer is arranged on the surface of the pixel limiting layer and comprises a first sub-packaging layer, a second sub-packaging layer and a third sub-packaging layer which are arranged in a stacked mode, the third sub-packaging layer deviates from the light emitting unit compared with the first sub-packaging layer and the second sub-packaging layer, the light filtering piece is arranged between the first sub-packaging layer and the second sub-packaging layer, and the second sub-packaging layer is an organic layer.

In a second aspect, the application provides an electronic device, the electronic device includes casing, treater and display device, the casing has accommodating space, display device install in the casing, the treater is located accommodating space, just the treater electricity is connected the display screen photoelectric sensor the transmitter with receive the piece, the treater basis the transmitter launches detect light's the first moment, and receive the piece and receive reflected light's the second moment, and detect the wavelength of light, calculate the distance between photoelectric sensor and the determinand.

The electronic equipment that this application second aspect provided, through adopting the display device that this application first aspect provided, make electronic equipment's display device have the filter, can block the ambient light except that the reflected light, avoid ambient light to be received by receiving the piece. The measurement accuracy of the photoelectric sensor is improved, and the measurement effect of the photoelectric sensor is further improved.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present application, 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 application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a display device in the related art;

fig. 2 is a schematic structural diagram of a display device according to an embodiment of the present disclosure;

fig. 3 is a schematic diagram of a partition structure of a display screen according to an embodiment of the present disclosure;

fig. 4 is a schematic structural view of a filter and a carrier substrate disposed on the same layer according to a second embodiment of the present disclosure;

fig. 5 is a schematic structural diagram of a filter disposed in a carrier substrate according to a third embodiment of the present disclosure;

fig. 6 is a schematic structural diagram of the filter provided in the fourth embodiment of the present disclosure, where the filter is disposed on a side of the buffer layer away from the carrier substrate;

fig. 7 is a schematic structural view of a filter disposed on a surface of a pixel defining portion according to a fifth embodiment of the present disclosure;

fig. 8 is a schematic structural diagram of a filter multiplexed into a pixel defining layer according to a sixth embodiment of the present application;

fig. 9 and fig. 10 are schematic structural diagrams of a seventh sub-package layer provided in the present application;

fig. 11 is a schematic structural diagram of an electronic device according to an eighth embodiment of the present application.

Description of reference numerals:

the display device comprises an electronic device-1000, a display device-1, a display screen-10, a non-display surface-101, a display surface-102, a first part-103, a second part-104, a carrier substrate-11, a preset through hole-111, a preset groove-112, a driving component-12, a buffer layer-120, a light emitting component-13, a pixel defining layer-130, a pixel opening-131, a pixel defining part-132, a passivation layer-140, an encapsulation layer-150, a first sub-encapsulation layer-151, a second sub-encapsulation layer-152, a third sub-encapsulation layer-153, a filter-20, a photoelectric sensor-30, an emitting element-31, a receiving element-32, an object-to-be-tested-40, a shell-50, a middle frame-51, a front shell-52 and a rear shell-53.

Detailed Description

The technical solutions in the embodiments of the present application will be described clearly and completely with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only some embodiments of the present application, and not all embodiments. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application without any inventive step are within the scope of protection of the present application.

Reference herein to "an embodiment" or "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation can be included in at least one embodiment of the application. 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.

It should be noted that the terms "first", "second", and the like in the description and claims of the present application and in the above-described drawings are used for distinguishing different objects and not for describing a particular order. Furthermore, the terms "include" and "have," as well as any variations thereof, are intended to cover non-exclusive inclusions.

In this specification, for convenience, words such as "middle", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicating orientations or positional relationships are used to explain positional relationships of constituent elements with reference to the drawings, only for convenience of description and simplification of description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present disclosure. The positional relationship of the components is changed as appropriate according to the direction of the described components. Therefore, the words described in the specification are not limited to the words described in the specification, and may be replaced as appropriate.

In this specification, the terms "mounted," "connected," and "connected" are to be construed broadly unless otherwise explicitly specified or limited. For example, it may be a fixed connection, or a removable connection, or an integral connection; can be a mechanical connection, or an electrical connection; either directly or indirectly through intervening components, or both may be interconnected. The meaning of the above terms in the present disclosure can be understood by those of ordinary skill in the art as appropriate.

With the development of science and technology, the functions and applications of electronic devices are more and more abundant. The electronic device can be used for displaying pictures, and a photoelectric sensor is usually arranged on the electronic device, so that the distance between an object to be measured in front of the electronic device and the electronic device can be measured. The emitting piece of photoelectric sensor can send and detect light, and photoelectric sensor's receiving piece can receive and detect light and reflect the light that forms at the object surface emission to be measured to measure the distance of object to be measured and display module. However, in the related art electronic device, a portion of the ambient light may irradiate the photo sensor and be received by the receiving part of the photo sensor, which reduces the measurement accuracy of the photo sensor, and further causes the measurement effect of the photo sensor to be poor.

Referring to fig. 1 and fig. 2, the present application provides a display device 1, where the display device 1 includes a display screen 10, a photo sensor 30, and a filter 20. The display screen 10 has a non-display surface 101. The photoelectric sensor 30 is disposed on a side close to the non-display surface 101, the photoelectric sensor 30 includes an emitting element 31 and a receiving element 32 disposed at an interval, the emitting element 31 is configured to emit a detection light (as shown in J1 in fig. 1 and 2), wherein a wavelength of the detection light is greater than or equal to 1300nm, the receiving element 32 is configured to receive a reflection light (as shown in F1 in fig. 1 and 2) formed by the detection light irradiating to an object to be measured 40 being reflected, the filter 20 is disposed in the display screen 10 and corresponds to the photoelectric sensor 30, the filter 20 is configured to filter an ambient light (as shown in H1 in fig. 1 and 2) outside the reflection light, wherein the wavelength of the ambient light is less than 1300nm.

Optionally, the Display screen 1010 provided in the present application may be a Thin Film Transistor Liquid Crystal Display (TFT-LCD) 10, an Organic Light-Emitting Diode Display (TFT-OLED) 10, a mini-LED Display screen 10, a micro-LED Display screen 10, or other types of Display screens 10, which is not limited in this application.

The display screen 10 has a display surface 102 and a non-display surface 101, which face away from each other, the display surface 102 is a surface of the display screen 10 facing an operator, the display screen 10 can be used to emit light and make the display surface 102 display a picture, and the non-display surface 101 is a surface of the display screen 10 facing the photoelectric sensor 30 and other components, in other words, the non-display surface 101 is a surface facing away from the operator. Optionally, the shape and size of the display screen 10 are not limited in the present application, for example, the display screen 10 may be a square display screen 10, or a circular display screen 10, or a display screen 10 with other shapes, which may be specifically designed according to an application scenario of the display device 1.

The display device 1 further includes a photoelectric sensor 30, and the photoelectric sensor 30 can be used to detect the distance between the object 40 to be measured and the display device 1. Likewise, the present application does not limit the shape or size of the photosensor 30. The photoelectric sensor 30 comprises an emitting element 31 and a receiving element 32 which are arranged at intervals, wherein the emitting element 31 is used for emitting detection light, and the wavelength of the detection light is greater than or equal to 1300nm.

In the present embodiment, the emitting element 31 is an infrared emitter, and the wavelength of the detection light emitted by the emitting element 31 is greater than or equal to 1300nm, for example, the wavelength of the detection light may be 1300nm, 1310nm, 1360nm, 1400nm, or other values greater than 1300nm, which is not limited in the present application.

The display device 1 further comprises a filter 20, the filter 20 being arranged in the display screen 10 and corresponding to the photo sensor 30, in other words, the filter 20 is located at least in the receiving part 32 of the photo sensor 30 for receiving the light signal. The filter 20 can be used to filter out ambient light outside the reflected light, which is typically less than 1300nm in wavelength, from being received by the receiver 32.

Specifically, in the display device 1 of the present application, the filter 20 is disposed in the display screen 10 to improve the measurement accuracy of the photoelectric sensor 30. First, the emitting element 31 emits the detecting light, a portion of the detecting light passes through the display screen 10 to the object 40 to be measured and is reflected on the surface of the object 40 to form a reflected light, the receiving element 32 receives the reflected light, and the filter 20 can be used for filtering the ambient light outside the reflected light to prevent the ambient light from being received by the receiving element 32.

Without the filter 20, part of the ambient light (as shown by H1 in fig. 1) of the display screen 10 in the related art may irradiate the photo sensor 30 and be received by the receiving part 32 of the photo sensor 30, thereby reducing the measurement accuracy of the photo sensor 30. The application provides a display device 1 is equipped with filter 20 in display screen 10, can block the ambient light except that the reflected light ray, avoids ambient light to be received by receiving piece 32. The measurement accuracy of the photoelectric sensor 30 is improved, and the measurement effect of the photoelectric sensor 30 is further improved.

The photoelectric sensor 30 may also be applied to an unmanned vehicle, a sweeping robot, a mobile phone, a tablet Computer, a notebook Computer, a palm Computer, a Personal Computer (PC), a Personal Digital Assistant (PDA), a Portable Media Player (PMP), an earphone, a camera, a wind power generation device, and the like. For example, the photoelectric sensor 30 may be applied to distance measurement and obstacle avoidance in an unmanned vehicle; or the distance measurement and obstacle avoidance of the sweeping robot; or proximity sensing of mobile phones, tablet computers, notebook computers, palm top computers, PCs, PDAs, portable media players; or in-ear detection of the headset; or atmospheric detection of the camera, or the photoelectric sensors 30 forming the array realize the photographing function of the camera; or deformation detection of a wind turbine blade in a wind turbine. It is to be understood that the above application field of the photoelectric sensor 30 should not be construed as a limitation of the photoelectric sensor 30 provided in the embodiments of the present application.

Referring to fig. 2 and fig. 3, in the present embodiment, the display screen 10 includes a first portion 103 and a second portion 104, the first portion 103 is located in a range where the photosensor 30 receives a light signal, the second portion 104 surrounds the first portion 103, the second portion 104 is located outside the range where the photosensor 30 receives the light signal, and the filter 20 is disposed in the first portion 103.

In other words, the front projection of the photoelectric sensor 30 on the display screen 10 falls within the range of the filter 20, and the ambient light that may be incident on the receiving part 32 can be absorbed to the greatest extent, so as to further improve the measurement accuracy of the photoelectric sensor 30.

In other embodiments, the filter 20 is located in the first portion 103 and also in the second portion 104, and the thickness of the filter 20 located in the first portion 103 is greater than the thickness of the filter 20 located in the second portion 104.

In one embodiment, the material of the optical filter 20 is a light absorbing material, the material of the optical filter 20 includes InGaAsP, and the optical filter 20 can be used to absorb the ambient light. The thickness of the filter 20 is 0.5 μm to 3.0 μm.

The optical filter 20 is an InGaAsP layer, in other words, the material of the optical filter 20 is InGaAsP material. Thus, the filter 20 is also referred to as an InGaAsP layer. The light filter 20 is an InGaAsP layer, which can absorb the ambient light with a wavelength less than or equal to 1300nm.

In one embodiment, the thickness d1 of the filter 20 satisfies: d1 is more than or equal to 0.5 mu m and less than or equal to 3.0 mu m.

When the filter 20 is an InGaAsP layer, although InGaAsP absorbs light with a wavelength less than 1300nm. However, when the thickness d1 of the optical filter 20 is less than 0.5 μm, the thickness of the optical filter 20 is thin, and the optical filter 20 cannot absorb more light with a wavelength less than 1300nm, so that part of the ambient light with a wavelength less than 1300nm is emitted into the photoelectric sensor 30, and then the photoelectric sensor 30 is interfered when operating with a signal (for example, 1310 nm) with a wavelength greater than or equal to 1300nm. The thicker the thickness of the filter 20, the better the effect of blocking and stopping light with a wavelength less than 1300nm, however, the thicker the thickness of the filter 20 will increase the thickness of the display screen 10, which is not favorable for the size of the display device 1 to be light and thin. In summary, the thickness d1 of the filter 20 in the display screen 10 provided by the embodiment of the present application satisfies: d1 is not less than 0.5 μm and not more than 3.0 μm, which can cut off and prevent the light filter 20 from the environment light with the wavelength less than 1300nm and make the display device 1 light and thin.

The thickness d1 of the filter 20 satisfies: 0.5 μm. Ltoreq. D1. Ltoreq.3.0. Mu.m, in particular, the thickness d1 of the filter 20 may be 0.5 μm, or 0.6 μm, or 0.7 μm, or 0.8 μm, or 0.9 μm, or 1.0. Mu.m, or 1.1. Mu.m, or 1.2. Mu.m, or 1.3. Mu.m, or 1.4. Mu.m, or 1.5. Mu.m, or 1.6. Mu.m, or 1.7. Mu.m, or 1.8. Mu.m, or 1.9. Mu.m, or 2.0. Mu.m, or 2.1. Mu.m, or 2.2. Mu.m, or 2.3. Mu.m, or 2.4. Mu.m, or 2.5. Mu.m, or 2.6. Mu.m, or 2.7. Mu.m, or 2.8. Mu.m, or 2.9. Mu.0. Mu.m. It is understood that the thickness of the filter 20d1 may also be other values than those exemplified above, as long as the thickness d1 of the filter 20 satisfies: d1 is more than or equal to 0.5 mu m and less than or equal to 3.0 mu m.

In another embodiment, the material of the filter 20 is a light-absorbing material, the material of the filter 20 includes InP, and the filter 20 can be used to absorb the ambient light; the thickness of the filter 20 is greater than 3 μm.

The filter 20 is an InP layer, in other words, the material of the filter 20 is an InP material. Therefore, the filter 20 is also referred to as an InP layer. The filter 20 is an InP layer and has a good absorption of ambient light with a wavelength of 1300nm or less.

In one embodiment, the thickness d2 of the filter 20 satisfies: d2 is more than 3 mu m.

When the filter 20 is an InP layer, although InP has a good absorption for light with a wavelength of less than 1300nm. However, when the thickness d2 of the optical filter 20 is less than 3 μm, the thickness of the optical filter 20 is relatively thin, and the optical filter 20 cannot absorb more light with a wavelength less than 1300nm, so that part of the ambient light with a wavelength less than 1300nm is emitted into the photoelectric sensor 30, and then the photoelectric sensor 30 is interfered when working with signals (for example 1310 nm) with a wavelength greater than or equal to 1300nm.

The thickness d2 of the filter 20 satisfies: d2 > 3 μm, in particular, the thickness d2 of the filter 20 may be 3.1 μm, or 3.5 μm, or 4.0 μm, or 4.1 μm, or 4.2 μm, or 4.7 μm, or 5.0. It is understood that the thickness of the filter 20d2 may also be other values than those exemplified above, as long as the thickness d2 of the filter 20 satisfies: d2 is more than 3 mu m.

Referring to fig. 3, fig. 4 and fig. 5, the display screen 10 further includes a carrier substrate 11, a driving component 12 and a light emitting component 13, which are sequentially disposed, the driving component 12 is disposed on the carrier substrate 11, the light emitting component 13 is disposed on a side of the driving component 12 away from the carrier substrate 11, the light emitting component 13 is electrically connected to the driving component 12, the driving component 12 is configured to drive the light emitting component 13 to emit light, the carrier substrate 11 has the non-display surface 101, and the light filtering component 20 is disposed on the same layer as the carrier substrate 11, or the light filtering component 20 is disposed in the carrier substrate 11 of the first portion 103.

In this embodiment, the carrier substrate 11 may be a flexible substrate, and optionally, the carrier substrate 11 may be made of any one or more of the following materials: polyimide, polyethylene terephthalate (PET), polyethylene naphthalate (PEN), cyclic Olefin Polymer (COP), polycarbonate (PC), polystyrene (PS), polypropylene (PP), polytetrafluoroethylene (PTFE). In other embodiments, the carrier substrate 11 may also be a non-flexible substrate, such as glass, ceramic, etc., which is not limited in this application.

Optionally, in this embodiment, the optical filter 20 is disposed on the same layer as the carrier substrate 11, and in other embodiments, the optical filter 20 is disposed in the carrier substrate 11 of the first portion 103, which is not limited in this application.

To illustrate by taking an example that the filter 20 and the carrier substrate 11 are disposed at the same layer, the carrier substrate 11 has at least one predetermined through hole 111, the predetermined through hole 111 penetrates through the carrier substrate 11, and the filter 20 is located in the predetermined through hole 111.

Taking the example that the optical filter 20 is disposed in the carrier substrate 11 of the first portion 103 as an example, the optical filter 20 is disposed in the carrier substrate 11 of the first portion 103, the carrier substrate 11 has at least one predetermined groove 112, and the optical filter 20 is disposed in the predetermined groove 112. Alternatively, the predetermined groove 112 may be located on a side of the carrier substrate 11 facing the photosensor 30 or a side facing away from the photosensor 30, which is not limited in this application.

In other embodiments, the filter 20 may be disposed on other layer structures of the driving assembly 12, which is not limited in this application.

Referring to fig. 6, in another embodiment, the carrier substrate 11 includes a first surface and a second surface opposite to each other, and the first surface is used for carrying the driving element 12. The display screen 10 further includes a buffer layer 120 and a passivation layer 140, wherein the buffer layer 120 is disposed on the second surface. The light filter 20 is disposed on a surface of the buffer layer 120 facing away from the carrier substrate 11. The passivation layer 140 is disposed on a surface of the light filter 20 facing away from the buffer layer 120.

Specifically, the driving assembly 12 and the buffer member are respectively disposed on two opposite sides of the carrier substrate 11. If the buffer layer 120 is not provided, the subsequent layers, such as the filter 20 and the passivation layer 140, are easily peeled off from the carrier substrate 11. The buffer layer 120 may enable a film layer to be better disposed on the carrier substrate 11. The buffer layer 120 can also be used to buffer the impact force and prevent the other layer structures of the driving element 12 and the light emitting element 13 from being damaged.

In this embodiment, the buffer layer 120 may be N-type InP, i.e., inP doped with Si. In other embodiments, the buffer layer 120 may be made of other materials, which is not limited in this application.

The passivation layer 140 is disposed on a surface of the filter 20 facing away from the buffer layer 120. The passivation layer 140 may serve to protect the filter 20 from damage or attack by water oxygen.

When the thickness of the passivation layer 140 is less than 0.1 μm, the buffer layer 120 has a low protective effect on the filter 20; when the thickness of the passivation layer 140 is greater than 2.0 μm, the thickness of the display screen 10 is too thick, which is not favorable for thinning the display device 1.

Accordingly, in the present embodiment, the thickness of the passivation layer 140 is preferably in the range of 0.1 μm to 2.0 μm, for example, the thickness of the passivation layer 140 may be 0.1 μm, or 0.3 μm, or 0.5 μm, or 0.7 μm, or 1.0 μm, or 1.2 μm, or 1.6 μm, or 1.9 μm, or 2.0 μm, or other values within the range of 0.1 μm to 2.0 μm.

Optionally, the passivation layer 140 is made of, but not limited to, silicon nitride (SiO 2), silicon nitride (SiNx), or other materials.

Referring to fig. 7, in one embodiment, the light emitting device 13 includes a pixel defining layer 130 and a plurality of light emitting units. The pixel defining layer 130 has a plurality of pixel openings 131, and a plurality of pixel defining parts 132 forming the pixel openings 131. The light emitting unit is disposed in the pixel opening 131. The light filter 20 is disposed on the inner surface of the pixel defining portion 132 forming the pixel opening 131, and the end surface of the pixel defining portion 132 facing away from the carrier substrate 11. The light emitting assembly 13 further includes an encapsulation layer 150, and the encapsulation layer 150 is disposed on a surface of the pixel defining layer 130.

The pixel limiting portion 132 can also be used for absorbing external ambient light, and optionally, in the present embodiment, the material of the pixel limiting portion 132 is black Polyimide (PI). Black polyimide materials have many advantages such as good light-shielding properties, good thermal conductivity, good antistatic properties, and good electrical conductivity. In other embodiments, the pixel defining portion 132 may be made of other types of materials, such as black Polymethyl methacrylate (PMMA) material, black Polycarbonate (PC) material, etc., as long as the materials can absorb the external ambient light, which is not limited in this application.

The light filter 20 is disposed on the inner surface of the pixel defining portion 132 forming the pixel opening 131, and the end surface of the pixel defining portion 132 facing away from the carrier substrate 11. May be used to absorb ambient light that is incident from the display surface 102 side of the display screen 10,

the encapsulation layer 150 is disposed on the surface of the pixel defining layer 130, and can be used for isolating water and oxygen, and preventing the light emitting unit from being corroded by external water vapor, thereby reducing the service life.

Referring to fig. 8, in another embodiment, the optical filter 20 has a plurality of pixel openings 131 and a plurality of optical filter portions forming the pixel openings 131. The light emitting device 13 includes a plurality of light emitting units and an encapsulation layer 150. The light emitting unit is disposed in the pixel opening 131. The encapsulation layer 150 is disposed on the surface of the light filter 20 and the light emitting units.

In other words, the filter 20 is multiplexed into the pixel defining layer 130 as described above for the purpose of structural multiplexing. Further, the layer structure inside the display panel 10 is reduced, and the thickness of the display panel 10 is reduced, so as to improve the thinness of the display panel 10 and the display device 1.

Referring to fig. 9 and 10, in another embodiment, the light emitting device 13 includes a pixel defining layer 130 and a plurality of light emitting units. The pixel defining layer 130 has a plurality of pixel openings 131, and a plurality of pixel defining parts 132 forming the pixel openings 131. The light emitting unit is disposed in the pixel opening 131.

The light emitting assembly 13 further includes an encapsulation layer 150, the encapsulation layer 150 is disposed on the surface of the pixel defining layer 130, the encapsulation layer 150 includes a first sub-encapsulation layer 151, a second sub-encapsulation layer 152 and a third sub-encapsulation layer 153, which are stacked, the third sub-encapsulation layer 153 is away from the light emitting unit compared with the first sub-encapsulation layer 151 and the second sub-encapsulation layer 152, the light filter 20 is disposed between the first sub-encapsulation layer 151 and the second sub-encapsulation layer 152, and the second sub-encapsulation layer 152 is an organic layer.

Specifically, the first sub-encapsulation layer 151 is an inorganic layer, the second sub-encapsulation layer 152 is an organic layer, and the third sub-encapsulation layer 153 is an inorganic layer.

The optical filter 20 is disposed between the first sub-package layer 151 and the second sub-package layer 152, and the second sub-package can be used as a protection layer of the optical filter 20, so as to protect the optical filter 20.

Referring to fig. 11, the present application further provides an electronic apparatus 1000, where the electronic apparatus 1000 includes a housing 52, a processor, and the display device 1, the housing 52 has an accommodating space, the display device 1 is installed on the housing 52, the processor is disposed in the accommodating space, and the processor is electrically connected to the display screen 10, the emitting element 31 and the receiving element 32 of the photoelectric sensor 30, and the processor calculates a distance between the photoelectric sensor 30 and the object to be measured 40 according to a first time when the emitting element 31 emits the detection light, a second time when the receiving element 32 receives the reflection light, and a wavelength of the detection light.

The electronic device 1000 may be, but not limited to, an unmanned vehicle, a sweeping robot, a mobile phone, a tablet Computer, a notebook Computer, a palm Computer, a Personal Computer (PC), a Personal Digital Assistant (PDA), a Portable Media Player (PMP), an earphone, a camera, a wind power generation device, and the like.

Specifically, the housing 52 includes a center frame, a front case, and a rear case 53. The middle frame is used for bearing the display device 1. The front case is disposed at a periphery of the display device 1, and is used to encapsulate the display device 1. The rear shell 53 is disposed on a side of the middle frame away from the display device 1, and the rear shell 53 and the front shell cooperate with each other to accommodate the middle frame and the display device 1.

The processor in this embodiment can control the emitting element 31 to emit the detection light and can also control the receiving element 32 to receive the reflected light. The processor can also convert the optical signal from the receiving member 32 into an electrical signal to obtain the distance between the object 40 and the display assembly. The processor is also capable of controlling the display screen 10 to display pictures, information, etc. The display device 1 has been described in detail above and will not be described in detail here.

The electronic device 1000 has a display area and a non-display area, and the photoelectric sensor 30 is disposed corresponding to the display area, that is, the photoelectric sensor 30 can be disposed behind the screen of the display screen 10, so that the electronic device 1000 can realize a full-screen.

While the foregoing is directed to embodiments of the present application, it will be appreciated by those skilled in the art that various changes and modifications may be made without departing from the principles of the application, and it is intended that such changes and modifications be covered by the scope of the application.

Claims

1. A display device, comprising:

a display screen having a non-display surface;

the light filtering piece is arranged in the display screen and correspondingly arranged with the photoelectric sensor, the light filtering piece can be used for filtering the ambient light outside the reflected light, wherein the wavelength of the ambient light is less than 1300nm.

2. The display device according to claim 1, wherein the display screen includes a first portion and a second portion, the first portion is located within a range where the photosensor receives the light signal, the second portion surrounds the first portion, and the second portion is located outside the range where the photosensor receives the light signal, and the filter is disposed in the first portion.

3. The display device according to claim 2, wherein the filter is made of a light absorbing material, the filter comprises InGaAsP, and the filter is configured to absorb the ambient light; the thickness of the light filtering piece is 0.5-3.0 μm.

4. The display device according to claim 2, wherein the filter is made of a light absorbing material, the filter is made of InP, and the filter is configured to absorb the ambient light; the thickness of the filter is more than 3 μm.

5. The display device according to claim 2, wherein the display screen further includes a carrier substrate, a driving component and a light emitting component, the driving component is disposed on the carrier substrate, the light emitting component is disposed on a side of the driving component away from the carrier substrate, the light emitting component is electrically connected to the driving component, the driving component is configured to drive the light emitting component to emit light, the carrier substrate has the non-display surface, and the light filtering component and the carrier substrate are disposed on the same layer, or the light filtering component is disposed in the carrier substrate of the first portion.

6. The display device according to claim 5, wherein the carrier substrate comprises a first surface and a second surface opposite to each other, the first surface being used for carrying the driving assembly;

the display screen also comprises a buffer layer and a passivation layer;

the buffer layer is arranged on the second surface;

7. The display device according to claim 5, wherein the light emitting element comprises:

a plurality of light emitting units disposed within the pixel openings;

the light filtering piece is arranged on the inner surface of the pixel limiting part forming the pixel opening, and the end face of the pixel limiting part departing from the bearing substrate; and

an encapsulation layer disposed on a surface of the pixel defining layer.

8. The display device according to claim 5, wherein the filter has a plurality of pixel openings, and a plurality of filter portions forming the pixel openings;

the light emitting assembly includes:

a plurality of light emitting units disposed within the pixel openings; and

9. The display device according to claim 5, wherein the light emitting assembly comprises:

a plurality of light emitting units disposed within the pixel openings;

10. An electronic device, comprising a housing, a processor, and a display device according to any one of claims 1 to 9, wherein the housing has an accommodating space, the display device is mounted on the housing, the processor is disposed in the accommodating space, the processor is electrically connected to the display screen, the emitting element and the receiving element of the photoelectric sensor, and the processor calculates a distance between the photoelectric sensor and an object to be measured according to a first time when the emitting element emits the detection light, a second time when the receiving element receives the reflection light, and a wavelength of the detection light.