CN115768211B - Display screen and electronic equipment - Google Patents
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- CN115768211B CN115768211B CN202211342944.8A CN202211342944A CN115768211B CN 115768211 B CN115768211 B CN 115768211B CN 202211342944 A CN202211342944 A CN 202211342944A CN 115768211 B CN115768211 B CN 115768211B
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Abstract
The application provides a display screen and electronic equipment. The display screen includes: the light-emitting device comprises a light-emitting layer, a light-emitting layer and a light-emitting layer, wherein the light-emitting layer comprises a plurality of light-emitting units which are arranged at intervals; the photoelectric detector comprises a plurality of photoelectric detection units, the photoelectric detection units are arranged at intervals, the orthographic projection of each photoelectric detection unit on the light-emitting layer avoids the light-emitting unit, and the photoelectric detection units are used for distance detection. The display screen provided by the embodiment of the application has a good display effect and a distance detection effect.
Description
Technical Field
The application relates to the field of electronic display, in particular to a display screen and electronic equipment.
Background
With the development of technology, more and more photoelectric detection chips are applied to electronic devices to assist the electronic devices in distance detection, however, when the photoelectric detection chips are applied to a display screen, the display of the display screen in the area where the photoelectric detection chips are arranged is easily affected.
Disclosure of Invention
In a first aspect, embodiments of the present application provide a display screen, including:
the light-emitting device comprises a light-emitting layer, a light-emitting layer and a light-emitting layer, wherein the light-emitting layer comprises a plurality of light-emitting units which are arranged at intervals; a kind of electronic device with high-pressure air-conditioning system
The photoelectric detector comprises a plurality of photoelectric detection units, the photoelectric detection units are arranged at intervals, the orthographic projection of each photoelectric detection unit on the light-emitting layer is avoided from the light-emitting unit, and the photoelectric detection units are used for distance detection.
And gaps are formed between two adjacent light-emitting units in the plurality of light-emitting units, each photoelectric detection unit is arranged in the gap, and each photoelectric detection unit is arranged corresponding to a different gap.
The display screen further comprises a pixel limiting layer, wherein the pixel limiting layer comprises a plurality of pixel opening areas and a retaining wall part which is surrounded to form the pixel opening areas, the light emitting unit is positioned in the pixel opening areas and is provided with a light emitting surface, and the light emitting surface is used for emitting light rays; the retaining wall part is also provided with a plurality of first accommodating spaces, the first accommodating spaces are used for accommodating the photoelectric detection units, the retaining wall part is provided with a light transmission area, and the light transmission area is arranged corresponding to the photoelectric detection units so as to transmit detection signals.
Wherein the photoelectric detection unit comprises a photoelectric detection body; the display screen further comprises a pixel limiting layer, wherein the pixel limiting layer comprises a plurality of pixel opening areas and a retaining wall part which is surrounded to form the pixel opening areas, the light emitting unit is positioned in the pixel opening areas and is provided with a light emitting surface, and the light emitting surface is used for emitting light rays; the retaining wall part is also provided with a plurality of first accommodating spaces, the first accommodating spaces are used for accommodating the photoelectric detection bodies, the retaining wall part is provided with a light transmission area, and the light transmission area is arranged corresponding to the photoelectric detection bodies so as to transmit detection signals.
The light-emitting unit is provided with a light-emitting surface, and the light-emitting surface is used for emitting light rays;
the display screen further includes:
the light-transmitting substrate is arranged on one side of the light-emitting surface and is provided with a plurality of second accommodating spaces, and each second accommodating space accommodates one photoelectric detection unit.
The light-emitting unit is provided with a light-emitting surface, and the light-emitting surface is used for emitting light rays;
the display screen further includes:
the pixel limiting layer comprises a plurality of pixel opening areas and a retaining wall part which is surrounded to form the pixel opening areas, and the light emitting units are positioned in the pixel opening areas; a kind of electronic device with high-pressure air-conditioning system
The light-transmitting substrate is arranged on one side of the light-emitting surface;
the photodetector is arranged between the pixel defining layer and the light-transmitting substrate.
The display screen further comprises a first electrode layer and a second electrode layer, wherein the first electrode layer and the second electrode layer are respectively located on two sides of the luminous layer, the first electrode layer is transparent, the second electrode layer is non-transparent, the second electrode layer corresponds to the plurality of luminous units, the first electrode layer comprises a plurality of first electrode parts which are arranged at intervals, each first electrode part corresponds to one luminous unit, and the photoelectric detection units correspond to gaps between two adjacent first electrode parts.
The display screen further comprises a pixel limiting layer, a first electrode layer and a second electrode layer, wherein the pixel limiting layer comprises a plurality of pixel opening areas and a retaining wall part which surrounds and forms the pixel opening areas, the light emitting units are positioned in the pixel opening areas, the first electrode layer and the second electrode layer are respectively positioned at two opposite sides of the light emitting layer, the first electrode layer is transparent, the first electrode layer is arranged corresponding to the plurality of light emitting units, the second electrode layer is non-transparent, the second electrode layer comprises a plurality of second electrode parts, and each second electrode part is arranged corresponding to one light emitting unit; the first electrode layer is provided with a plurality of avoidance holes, each avoidance hole corresponds to one retaining wall portion, and the photoelectric detection unit is arranged in each avoidance hole.
The photoelectric detection unit further comprises a third electrode layer and a fourth electrode layer, the third electrode layer is arranged on one side of the photoelectric detection unit, which receives detection signals, the fourth electrode layer is arranged opposite to the third electrode layer, the surface of the third electrode layer, which is away from the fourth electrode layer, and the surface of the first electrode layer, which is away from the second electrode layer, are coplanar, and the third electrode layer is arranged at intervals with the first electrode layer.
The display screen further comprises a light-transmitting substrate, the photoelectric detection units comprise functional parts and dividing parts which are arranged around the periphery of the functional parts, the photoelectric detection units are arranged on the light-transmitting substrate at intervals to form a plurality of pixel opening areas, the light-emitting units are located in the pixel opening areas, and the peripheral side faces of the light-emitting units are abutted against the peripheral side faces of the dividing parts.
According to the display screen provided by the embodiment of the application, the photoelectric detectors are arranged to be a plurality of photoelectric detection units which are arranged at intervals, so that the condition that the photoelectric detectors are integrally arranged in one area of the display screen to influence the display of the area is avoided, and the display quality of the display screen is improved. In addition, the orthographic projection of each photoelectric detection unit on the light-emitting layer avoids the light-emitting unit, and the light-emitting unit can be prevented from shielding the photoelectric detection unit, so that detection signals are prevented from being shielded by the light-emitting unit, and the distance detection effect of the photoelectric detector is improved. Therefore, the display screen provided by the embodiment of the application has a good display effect and a distance detection effect.
In a second aspect, embodiments of the present application further provide an electronic device, including:
a housing having an accommodation space;
the display screen of the first aspect, wherein the display screen is mounted on the housing; a kind of electronic device with high-pressure air-conditioning system
And the processor is accommodated in the accommodating space and is electrically connected with the display screen.
The electronic device provided by the embodiment of the application includes the display screen according to the first aspect, so that the electronic device provided by the embodiment of the application has a good display effect and a good distance detection effect.
Drawings
In order to more clearly illustrate the technical solutions of the examples of the present application, the drawings that are needed in the embodiments will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present application, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.
Fig. 2 is a schematic cross-sectional view taken along line A-A in fig. 1.
Fig. 3 is an application schematic diagram of the electronic device in fig. 2.
Fig. 4 is a schematic structural diagram of a display screen according to an embodiment of the present application.
Fig. 5 is a schematic diagram illustrating the operation of the photodetector of fig. 4.
Fig. 6 is a cross-sectional view of the display of fig. 4 taken along line B-B in one embodiment.
Fig. 7 is a schematic structural diagram of the display screen in fig. 6 in which the photodetectors are accommodated in the pixel defining layer in an embodiment.
Fig. 8 is a schematic structural diagram of the display panel of fig. 6 in which the photodetectors are accommodated in the pixel defining layer according to another embodiment.
Fig. 9 is a cross-sectional view of the display of fig. 4 taken along line B-B in another embodiment.
Fig. 10 is a cross-sectional view of the display of fig. 4 taken along line B-B in yet another embodiment.
Fig. 11 is a cross-sectional view of the display of fig. 4 taken along line B-B in yet another embodiment.
Fig. 12 is a cross-sectional view of the display of fig. 4 taken along line B-B in yet another embodiment.
Fig. 13 is a cross-sectional view of the display of fig. 4 taken along line B-B in yet another embodiment.
Fig. 14 is a cross-sectional view of the display screen of fig. 4 taken along B-B in yet another embodiment.
Reference numerals: an electronic device 1; a display screen 10; a light emitting layer 11; a light emitting unit 111; a light exit surface 1111; a gap 112; a photodetector 12; a photodetection unit 121; a photodetection body 1211; a third electrode layer 1212; a fourth electrode layer 1213; a functional unit 1214; a dividing section 1215; a package case 1216; a photoelectric detection region 122; a pixel defining layer 13; a pixel opening region 131; a retaining wall portion 132; a first receiving space 1321; a light transmissive region 1322; a light-transmitting substrate 14; a second receiving space 141; a first electrode layer 15; a first electrode portion 151; a relief hole 152; a second electrode layer 16; a second electrode portion 161; a cover 17; the accommodating space 171; a spacer column 18; a transmitting chip 19 housing 20; a housing space 21; a processor 30; and an object W0 to be measured.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without undue burden, are within the scope of the present application.
The terms first, second and the like in the description and in the claims of the present application and in the above-described figures, are used for distinguishing between different objects and not for describing a particular sequential order. Furthermore, the terms "comprise" and "have," as well as any variations thereof, are intended to cover a non-exclusive inclusion. For example, a process, method, system, article, or apparatus that comprises a list of steps or elements is not limited to only those listed steps or elements but may include other steps or elements not listed or inherent to such process, method, article, or apparatus.
Reference herein to "an embodiment" or "an implementation" means that a particular feature, structure, or characteristic described in connection with the embodiment or implementation may be included in at least one embodiment of the present application. The appearances of such phrases 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. Those of skill in the art will explicitly and implicitly appreciate that the embodiments described herein may be combined with other embodiments.
The embodiment of the application provides an electronic device 1. Referring to fig. 1, fig. 2, and fig. 3, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application; FIG. 2 is a schematic cross-sectional view taken along line A-A of FIG. 1; fig. 3 is an application schematic diagram of the electronic device in fig. 2. In this embodiment, the electronic device 1 includes a housing 20, a display screen 10, and a processor 30. The housing 20 has an accommodation space 21. The display screen 10 is mounted on the housing 20. The processor 30 is accommodated in the accommodating space 21, and the processor 30 is electrically connected to the display screen 10.
The electronic device 1 may be, but is not limited to, a device with a display function, such as a mobile phone, a tablet computer, a notebook computer, a palm top computer, a personal computer (Personal Computer, PC), a personal digital assistant (Personal Digital Assistant, PDA), or the like. The display screen 10 may be, but is not limited to, an OLED display screen, an LED display screen, a miniLED display screen, an LCD display screen, or the like. In this embodiment, the electronic device 1 is a mobile phone, and the display screen 10 is an OLED display screen for illustration.
In the present embodiment, the electronic device 1 is schematically illustrated as including a housing 20, a display screen 10, and a processor 30. The electronic device 1 performs distance detection by means of a photodetector 12 in the display screen 10. Specifically, the processor 30 is electrically connected to the transmitting chip 19 in the display screen 10, and the processor 30 is configured to control the transmitting chip 19 to transmit a detection signal, where the detection signal reflects on the surface of the object W0 to be detected and returns to the photodetector 12 to be received by the photodetector 12. The photodetector 12 is configured to convert an optical signal into an electrical signal according to a received detection signal, and the processor 30 is configured to calculate a distance between the object W0 to be measured and the photodetector 12, or to assist in calculating a distance between the object W0 to be measured and the transmitting chip 19, or to assist in calculating a distance between the object W0 to be measured and the display screen 10, or to assist in calculating a distance between the object W0 to be measured and the electronic device 1, according to the electrical signal. Further, in an embodiment, the processor 30 determines the distance between the electronic device 1 and the object W0 through the distance. In another embodiment, the processor 30 controls the display state of the display screen 10 according to the distance. For example, in the off-screen state of the display screen 10, the processor 30 controls the display screen 10 to be on when the distance is smaller than the first preset distance and larger than the second preset distance. When the distance is smaller than the second preset distance in the bright state of the display screen 10, the processor 30 controls the display screen 10 to stop. In a further embodiment, the processor 30 activates a preset function of the electronic device 1 according to the distance. For example, when the distance is less than a third preset distance and greater than a fourth preset distance, the processor 30 initiates a face unlocking function. When the distance is smaller than the fifth preset distance in the bright screen state of the display screen 10, the processor 30 activates the eye-prompting function to remind the user of correct eyes, or the processor 30 activates the eye-protecting function to reduce the display brightness of the display screen 10. The above is merely a schematic illustration of the application scenario of the electronic device 1, and should not be construed as limiting the electronic device 1 provided in the embodiment of the present application.
The embodiment of the application provides a display. Referring to fig. 4 and fig. 5, fig. 4 is a schematic structural diagram of a display screen according to an embodiment of the present application; fig. 5 is a schematic diagram illustrating the operation of the photodetector of fig. 4. In this embodiment, the display screen 10 includes a light emitting layer 11 and a photodetector 12. The light emitting layer 11 includes a plurality of light emitting units 111. The plurality of light emitting units 111 are disposed at intervals. The photodetector 12 includes a plurality of photodetector units 121. The plurality of photo-detection units 121 are used for distance detection.
Note that, the light emitting units 111 and the photodetecting units 121 in fig. 4 and 5 are only schematic, and the number of the light emitting units 111 and the photodetecting units 121 is not limited. Fig. 4 and 5 only illustrate a part of the structure of the display screen 10, and the structure of the display screen 10 in the embodiment of the present application is not limited.
In this embodiment, the display 10 is an OLED display. The light emitting layer 11 is for emitting light. Wherein the light emitting layer 11 includes a plurality of light emitting units 111, and the plurality of light emitting units 111 are disposed at intervals. The light emitting units 111 are configured to emit light, and the plurality of light emitting units 111 are capable of emitting light of a plurality of colors. The light emitting unit 111 is also referred to as a pixel unit or a pixel dot.
In this embodiment, the photodetector 12 is a photo-chip, and is configured to receive a detection signal for distance detection. Specifically, the display screen 10 further includes a transmitting chip 19, where the transmitting chip 19 is configured to transmit a detection signal, and the detection signal reflects on the surface of the object W0 to be detected and returns to the photodetector 12 to be received by the photodetector 12. The photodetector 12 is configured to convert an optical signal into an electrical signal according to a received detection signal, so as to assist in calculating a distance between the object W0 to be measured and the photodetector 12, or to assist in calculating a distance between the object W0 to be measured and the transmitting chip 19, or to assist in calculating a distance between the object W0 to be measured and the display screen 10. Wherein the distance is calculated from the propagation speed of the detection signal and the time of propagation of the detection signal, or the distance is calculated from the propagation speed of the detection signal, the time of propagation of the detection signal and the angle at which the detection signal is received by the photodetector 12. The detection signal is infrared, and the wavelength of the detection signal is greater than 1300nm.
The photodetector 12 can be applied to unmanned automobiles, mobile phones, tablet computers, notebook computers, palm computers, PC, PDA, PMP, cameras and other devices. For example, the photodetector 12 can be applied to proximity sensing of a mobile phone, a tablet computer, a notebook computer, a palm computer, a PC, a PDA, a portable media player; either the atmospheric detection of the camera or the photodetectors 12 that make up the array implement the photographing function of the camera. It will be appreciated that the above application areas of the photodetector 12 should not be construed as limiting the photodetector 12 provided in embodiments of the present application.
In this embodiment, the photodetector 12 includes a plurality of photodetector units 121, and the plurality of photodetector units 121 are disposed at intervals. Since the times at which the detection signals are received by the plurality of photo-detection units 121 are different, it is necessary to process a plurality of times at which the detection signals are received by the plurality of photo-detection units 121 to perform distance calculation. In an embodiment, the plurality of times when the plurality of photo detection units 121 receive the detection signals are averaged to perform distance calculation, so that the speed of distance calculation is fast. In another embodiment, the plurality of times when the plurality of photoelectric detection units 121 receive the detection signals are valued according to different weights to perform distance calculation, so that the distance calculation is more accurate. For example, the plurality of photoelectric detection units 121 take a larger weight for a shorter duration and take a smaller weight for a longer duration among a plurality of times for receiving the detection signals.
In this embodiment, the front projection of each photo-detector 121 on the light-emitting layer 11 avoids the light-emitting units 111, that is, the photo-detectors 121 and the light-emitting units 111 are distributed in a staggered manner, so that the effect of the whole photo-detector 12 on the display screen 10 in a region can be avoided, and the display quality of the display screen 10 is improved. In addition, the orthographic projection of the photoelectric detection unit 121 on the light-emitting layer 11 avoids the light-emitting unit 111, so that the light-emitting unit 111 can be prevented from shielding the photoelectric detection unit 121, thereby preventing the detection signal from being shielded by the light-emitting unit 111, and further improving the distance detection effect of the photoelectric detector 12. In an embodiment, the photodetector 12 is accommodated in the light-emitting layer 11, that is, the photodetector unit 121 is disposed between two adjacent light-emitting units 111, or the photodetector unit 121 is disposed on one side of the light-emitting units 111, so that the occupied space of the photodetector unit 121 is small, and the integration level of the display screen 10 is improved. In another embodiment, the photodetectors 12 are spaced apart from the light emitting layer 11, but the front projection of each of the photodetectors 121 onto the light emitting layer 11 avoids the light emitting unit 111, thereby reducing current interference between the photodetectors 121 and the light emitting unit 111.
In summary, in the display screen 10 provided in this embodiment of the present application, the photodetectors 12 are disposed as the plurality of photodetectors 121 disposed at intervals, so as to avoid that the photodetectors 12 are integrally disposed in one area of the display screen 10 to affect the display of the area, thereby improving the display quality of the display screen 10. In addition, the front projection of each photodetection unit 121 on the light-emitting layer 11 avoids the light-emitting unit 111, so that the light-emitting unit 111 can be prevented from shielding the photodetection unit 121, and the detection signal is prevented from being shielded by the light-emitting unit 111, so that the distance detection effect of the photodetector 12 is improved. Therefore, the display screen 10 provided in the embodiment of the application has a better display effect and a distance detection effect.
Referring to fig. 6, fig. 6 is a cross-sectional view of the display screen of fig. 4 along line B-B in one embodiment. In the present embodiment, a gap 112 is provided between two light emitting units 111 disposed adjacently among the plurality of light emitting units 111. Each of the photo-detection units 121 is disposed in the gap 112, and each of the photo-detection units 121 is disposed corresponding to a different one of the gaps 112.
In this embodiment, each of the photo-detecting units 121 is disposed in the gap 112, that is, the photo-detector 12 is accommodated in the gap 112, so that the occupied space of the photo-detector 12 is small, the integration level of the display screen 10 is improved, and the thickness of the display screen 10 can be reduced. In addition, each of the photo-detection units 121 is disposed corresponding to a different gap 112, so that the dispersity of the photo-detection units 121 can be improved, so as to reduce the display influence of the photo-detector 12 on the display screen 10, and the photo-detection units 121 do not influence the original design of the gap 112 between two adjacent light-emitting units 111.
Referring to fig. 7, fig. 7 is a schematic structural diagram of the display panel of fig. 6 in which the photodetector is accommodated in the pixel defining layer in an embodiment. In this embodiment, the display screen 10 further includes a pixel defining layer 13. The pixel defining layer 13 includes a plurality of pixel opening areas 131 and a wall portion 132 surrounding the pixel opening areas 131. The light emitting unit 111 is located in the pixel opening area 131. The light emitting unit 111 has a light emitting surface 1111. The light-emitting surface 1111 is used for emitting light. The retaining wall 132 further has a plurality of first receiving spaces 1321. The first accommodating space 1321 is configured to accommodate the photodetection unit 121. The retaining wall 132 has a light-transmitting region 1322, and the light-transmitting region 1322 is disposed corresponding to the photo-detecting unit 121 to transmit a detection signal.
In the present embodiment, the pixel defining layer 13 is insulating. The pixel defining layer 13 accommodates the light emitting layer 11 through the pixel opening area 131, and separates the light emitting units 111 adjacently disposed through the barrier wall portion 132 to avoid current interference between the plurality of light emitting units 111. The retaining wall 132 has a plurality of first receiving spaces 1321, and the photodetecting unit 121 is received in the first receiving spaces 1321. The photo-detecting unit 121 includes a photo-detecting body 1211 and a package 1216 for accommodating the photo-detecting body 1211, wherein the photo-detecting body 1211 and the package 1216 are both accommodated in the first accommodating space 1321. The photo-detector unit 121 is accommodated in the first accommodating space 1321, that is, the photo-detector 12 is accommodated in the retaining wall 132, so that the occupied space of the photo-detector 12 is small, the integration level of the display screen 10 is improved, and the thickness of the display screen 10 can be reduced.
In addition, the retaining wall 132 has a light-transmitting region 1322, and the light-transmitting region 1322 is disposed corresponding to the photodetecting unit 121. The light-transmitting region 1322 is configured to transmit a detection signal, so that the photodetection unit 121 can receive the detection signal. The retaining wall 132 is made of an opening or a transparent material in the transparent region 1322, so that the detection signal can be transmitted through the retaining wall 132 in the transparent region 1322.
Referring to fig. 8, fig. 8 is a schematic structural diagram of the display panel of fig. 6 in which the photodetector is accommodated in the pixel defining layer in another embodiment. In the present embodiment, the photodetection unit 121 includes a photodetection body 1211. The display screen 10 further comprises a pixel defining layer 13. The pixel defining layer 13 includes a plurality of pixel opening areas 131 and a wall portion 132 surrounding the pixel opening areas 131. The light emitting unit 111 is located in the pixel opening area 131. The light emitting unit 111 has a light emitting surface 1111. The light-emitting surface 1111 is used for emitting light. The retaining wall 132 further has a plurality of first receiving spaces 1321. The first receiving space 1321 is configured to receive the photodetection body 1211. The retaining wall 132 has a light-transmitting region 1322, and the light-transmitting region 1322 is disposed corresponding to the photo-detecting body 1211 to transmit a detection signal.
In the present embodiment, the pixel defining layer 13 is insulating. The pixel defining layer 13 accommodates the light emitting layer 11 through the pixel opening area 131, and separates the light emitting units 111 adjacently disposed through the barrier wall portion 132 to avoid current interference between the plurality of light emitting units 111. The retaining wall 132 has a plurality of first receiving spaces 1321, and the photodetecting unit 121 is received in the first receiving spaces 1321. The photodetection unit 121 includes a photodetection body 1211, and the photodetection body 1211 is accommodated in the first accommodation space 1321. The photo-detector unit 121 is accommodated in the first accommodating space 1321, that is, the photo-detector 12 is accommodated in the retaining wall 132, so that the occupied space of the photo-detector 12 is small, the integration level of the display screen 10 is improved, and the thickness of the display screen 10 can be reduced. In addition, the retaining wall portion 132 defines the inner wall of the first receiving space 1321 to form a package for the photodetection body 1211, so as to implement the structure of multiplexing the pixel defining layer 13 to package the photodetection body 1211, thereby improving the efficiency of the manufacturing process of the display screen 10.
In addition, the retaining wall 132 has a light-transmitting region 1322, and the light-transmitting region 1322 is disposed corresponding to the photodetecting unit 121. The light-transmitting region 1322 is configured to transmit a detection signal, so that the photodetection unit 121 can receive the detection signal. The retaining wall 132 is made of an opening or a transparent material in the transparent region 1322, so that the detection signal can be transmitted through the retaining wall 132 in the transparent region 1322.
Referring to fig. 9, fig. 9 is a cross-sectional view of the display screen of fig. 4 along line B-B in another embodiment. In the present embodiment, the light emitting unit 111 has a light emitting surface 1111. The light-emitting surface 1111 is used for emitting light. The display screen 10 further comprises a light transmissive substrate 14. The light-transmitting substrate 14 is disposed on one side of the light-emitting surface 1111. The light-transmitting substrate 14 has a plurality of second receiving spaces 141. Each of the second receiving spaces 141 receives one of the photo-detecting units 121.
In this embodiment, the light-transmitting substrate 14 accommodates the plurality of photo-detecting units 121 through the plurality of second accommodating spaces 141 to accommodate the photo-detector 12, so that the occupied space of the photo-detector 12 is small, the integration level of the display screen 10 is improved, and the thickness of the display screen 10 can be reduced. In an embodiment, the photo-detecting unit 121 includes a photo-detecting body 1211 and a package 1216 that accommodates the photo-detecting body 1211, and the photo-detecting unit 121 is wholly accommodated in the second accommodating space 141. In another embodiment, the photo-detecting unit 121 includes a photo-detecting body 1211, the photo-detecting body 1211 is accommodated in the second accommodating space 141, and the transparent substrate 14 defines an interior of the second accommodating space 141 to form a package for the photo-detecting body 1211, so as to implement a structure for multiplexing the transparent substrate 14 to package the photo-detecting body 1211, thereby improving efficiency of the manufacturing process of the display screen 10. It should be noted that fig. 9 illustrates that the photo-detecting unit 121 includes a photo-detecting body 1211 and a package 1216.
In addition, the photo-detecting unit 121 is accommodated in the second accommodating space 141 of the transparent substrate 14, so that the photo-detecting unit 121 is closer to the outer surface of the light emitting side of the display screen 10, which is beneficial for the distance detection of the photo-detecting unit 121.
Referring to fig. 10, fig. 10 is a cross-sectional view of the display screen of fig. 4 along line B-B in yet another embodiment. In the present embodiment, the light emitting unit 111 has a light emitting surface 1111. The light-emitting surface 1111 is used for emitting light. The display screen 10 further comprises a pixel defining layer 13. The pixel defining layer 13 includes a plurality of pixel opening areas 131 and a wall portion 132 surrounding the pixel opening areas 131. The light emitting unit 111 is located in the pixel opening area 131. The light-transmitting substrate 14 is disposed on one side of the light-emitting surface 1111. The photodetector 12 is disposed between the pixel defining layer 13 and the light-transmitting substrate 14.
In the present embodiment, the pixel defining layer 13 is insulating in the present embodiment. The pixel defining layer 13 accommodates the light emitting layer 11 through the pixel opening area 131, and separates the light emitting units 111 adjacently disposed through the barrier wall portion 132 to avoid current interference between the plurality of light emitting units 111. The photodetector 12 is disposed between the pixel defining layer 13 and the transparent substrate 14, and the front projection of each photodetector 121 on the light emitting layer 11 avoids the light emitting unit 111, so that the interference between the photodetector 121 and the light emitting unit 111 is small, and no holes or slots are required to be formed on the pixel defining layer 13 or the transparent substrate 14, so that the preparation of the display screen 10 is simpler and more convenient.
Referring to fig. 11, fig. 11 is a cross-sectional view of the display screen of fig. 4 along line B-B in yet another embodiment. In this embodiment, the display screen 10 further includes a first electrode layer 15 and a second electrode layer 16. The first electrode layer 15 and the second electrode layer 16 are respectively located at two opposite sides of the light-emitting layer 11. The first electrode layer 15 is light transmissive. The second electrode layer 16 is non-transparent, and the second electrode layer 16 is disposed corresponding to the plurality of light emitting units 111. The first electrode layer 15 includes a plurality of first electrode portions 151 disposed at intervals. Each of the first electrode portions 151 is disposed corresponding to one of the light emitting units 111. The photodetection units 121 are disposed corresponding to the gaps between two adjacent first electrode portions 151.
In this embodiment, the second electrode layer 16 being disposed corresponding to the plurality of light emitting units 111 means that the orthographic projection of the second electrode layer 16 on the light emitting layer 11 covers the plurality of light emitting units 111. The arrangement of each first electrode portion 151 corresponding to one light emitting unit 111 means that the orthographic projection of each first electrode portion 151 on the light emitting layer 11 covers at least part of one light emitting unit 111. The arrangement of the photodetection unit 121 corresponding to the gap between two adjacent first electrode portions 151 means that the orthographic projection of the photodetection unit 121 on the first electrode layer 15 falls in the gap between two adjacent first electrode portions 151.
In the present embodiment, the first electrode layer 15 is a cathode, and the second electrode layer 16 is an anode.
In this embodiment, the display screen 10 further includes a cover 17, and the cover 17 is cooperatively connected with the second electrode layer 16 to form a accommodating space 171. The light-emitting layer 11, the photodetector 12, and the first electrode layer 15 are accommodated in the accommodating space 171. The cover 17 is transparent to light emitted from the light emitting layer 11 and detection signals received by the photodetector 12. The photodetection unit 121 is disposed between the two light-emitting units 111, or the photodetection unit 121 is disposed at a distance from the light-emitting layer 11, but the orthographic projection of the photodetection unit 121 on the light-emitting layer 11 avoids the light-emitting units 111.
Referring to fig. 12, fig. 12 is a cross-sectional view of the display screen of fig. 4 along line B-B in yet another embodiment. In this embodiment, the display screen 10 further includes a pixel defining layer 13, a first electrode layer 15, and a second electrode layer 16. The pixel defining layer 13 includes a plurality of pixel opening areas 131 and a wall portion 132 surrounding the pixel opening areas 131. The light emitting unit 111 is located in the pixel opening area 131. The first electrode layer 15 and the second electrode layer 16 are respectively located at two opposite sides of the light-emitting layer 11. The first electrode layer 15 is light-transmissive, and the first electrode layer 15 is disposed corresponding to the plurality of light emitting units 111. The second electrode layer 16 is non-light-transmitting, and the second electrode layer 16 includes a plurality of second electrode portions 161, and each of the second electrode portions 161 is disposed corresponding to one of the light emitting units 111. The first electrode layer 15 has a plurality of avoidance holes 152, each avoidance hole 152 is disposed corresponding to one retaining wall 132, and the photoelectric detection unit 121 is disposed in the avoidance hole 152.
In this embodiment, the first electrode layer 15 is disposed corresponding to the plurality of light emitting units 111, which means that the orthographic projection of the first electrode layer 15 on the light emitting layer 11 covers the plurality of light emitting units 111. Each second electrode portion 161 is disposed corresponding to one light emitting unit 111, which means that the orthographic projection of each second electrode portion 161 on the light emitting layer 11 covers at least part of one light emitting unit 111. Each relief hole 152 is disposed corresponding to one of the retaining wall portions 132, which means that the orthographic projection of each relief hole 152 on the pixel defining layer 13 covers at least a portion of one of the retaining wall portions 132.
In the present embodiment, the first electrode layer 15 is an anode, and the second electrode layer 16 is a cathode.
In this embodiment, the photodetection unit 121 is disposed in the avoidance hole 152, so that the occupied space of the photodetection unit 12 is small, the integration level of the display screen 10 is improved, and the thickness of the display screen 10 can be reduced.
Further, referring to fig. 12 again, in the present embodiment, the photo-detecting unit 121 further includes a third electrode layer 1212 and a fourth electrode layer 1213. The third electrode layer 1212 is disposed on a side of the photo-detection unit 121 receiving a detection signal. The fourth electrode layer 1213 is disposed opposite to the third electrode layer 1212. The surface of the third electrode layer 1212 facing away from the fourth electrode layer 1213 and the surface of the first electrode layer 15 facing away from the second electrode layer 16 are coplanar, and the third electrode layer 1212 is disposed at a distance from the first electrode layer 15.
In this embodiment, the third electrode layer 1212 is an anode of the photodetection unit 121, and the fourth electrode layer 1213 is a cathode of the photodetection unit 121. The first electrode layer 15 is an anode of the light emitting layer 11, and the second electrode layer 16 is a cathode of the light emitting layer 11. The surface of the third electrode layer 1212 facing away from the fourth electrode layer 1213 and the surface of the first electrode layer 15 facing away from the second electrode layer 16 are coplanar, so that the power supply to the light emitting layer 11 and the photodetector 12 is more convenient, the space occupied by the wiring of the display is reduced, and the space utilization rate of the display is further improved.
In addition, the display screen 10 further includes a cover 17 and a plurality of isolation columns 18, where the cover 17 is cooperatively connected with the first electrode layer 15 to form a receiving space 171. The light-emitting layer 11, the photodetector 12, the pixel defining layer 13, the second electrode layer 16, and the isolation column 18 are accommodated in the accommodating space 171. The isolation column 18 is disposed in abutment with the retaining wall 132, and is disposed on a side of the retaining wall 132 facing away from the photoelectric detection unit 121. Among the plurality of isolation columns 18, the isolation column 18 near the middle of the cover 17 is higher than the isolation column 18 near the periphery of the cover 17, so that the isolation column 18 can better cope with the deformation of the cover 17 near the middle being greater than the deformation of the periphery, thereby having better supporting effect and further better protecting the display screen 10.
In addition, the working voltage of the photodetection units 121 near the circumference side of the photodetection units 121 is higher than the voltage of the photodetection units 121 near the middle, so that the photodetection units 121 near the circumference side of the photodetection units 121 have higher sensitivity, so as to compensate for the fact that the detection signals received by the photodetection units 121 near the circumference side of the photodetection units 121 are weaker than the detection signals received by the photodetection units 121 near the middle, and facilitate the distance detection of the photodetector 12.
Referring to fig. 13, fig. 13 is a cross-sectional view of the display screen of fig. 4 along line B-B in yet another embodiment. In this embodiment, the display screen 10 further includes a light-transmitting substrate 14. The photodetector 121 includes a functional portion 1214 and a dividing portion 1215 surrounding the functional portion 1214. The plurality of photo-detecting units 121 are disposed on the transparent substrate 14 at intervals to form a plurality of pixel opening areas 131, the light emitting units 111 are disposed in the pixel opening areas 131, and the peripheral sides of the light emitting units 111 are abutted against the peripheral sides of the dividing portions 1215.
In this embodiment, the dividing portion 1215 is insulated. The plurality of photo-detecting units 121 enclose a pixel opening area 131 for accommodating the light emitting units 111, and the partition 1215 insulates the light emitting units 111 that are adjacently arranged, so that the display screen 10 does not need to be provided with the pixel defining layer 13, and the function of the pixel defining layer 13 can be realized through the plurality of photo-detecting units 121, thereby reducing the manufacturing process of the display screen 10 and further improving the manufacturing efficiency of the display screen 10.
In this embodiment, the functional layer includes a multi-layer structure, and specifically, the functional layer includes a photosensitive region, a diffusion region, an absorption layer, a buffer layer, and a substrate that are sequentially connected. The photosensitive region is closer to the light-transmitting substrate 14 than the diffusion region, and is configured to receive the detection light and convert the detection light into an electrical signal after sequentially passing through the diffusion region, the absorption layer, the buffer layer, and the substrate.
In addition, in another embodiment, referring to fig. 14, fig. 14 is a cross-sectional view of the display screen in fig. 4 along B-B in yet another embodiment. The dividing portion 1215 of the plurality of photo-detecting units 121 is an integral structure, the dividing portion 1215 has a plurality of pixel opening areas 131 and a plurality of photo-detecting areas 122, and the pixel opening areas 131 and the photo-detecting areas 122 are sequentially arranged at intervals. The light emitting unit 111 is disposed in the pixel opening area 131, and the functional unit 1214 is disposed in the photoelectric detection area 122. In this embodiment, the manufacturing process of the display screen 10 is further reduced, in the manufacturing process, the dividing portion 1215 with an integral structure may be manufactured first, then the light emitting unit 111 is disposed in the pixel opening area 131 to form the light emitting layer 11, and the functional portion 1214 is disposed in the photoelectric detection area 122 to form the photodetector 12, so that the manufacturing process of the display screen 10 is simpler, and the manufacturing efficiency of the display screen 10 is improved.
While embodiments of the present application have been shown and described above, it will be understood that the above embodiments are illustrative and not to be construed as limiting the present application, and that variations, modifications, alternatives and alterations of the above embodiments may be made by those skilled in the art within the scope of the present application, which are also to be regarded as being within the scope of the protection of the present application.
Claims (11)
1. A display screen, the display screen comprising:
the light-emitting device comprises a light-emitting layer, a light-emitting layer and a light-emitting layer, wherein the light-emitting layer comprises a plurality of light-emitting units which are arranged at intervals;
the emitting chip is arranged on one side of the light emitting layer in the arrangement direction of the plurality of light emitting units and is used for emitting detection signals, wherein the detection signals are infrared rays; a kind of electronic device with high-pressure air-conditioning system
The photoelectric detector comprises a plurality of photoelectric detection units, the photoelectric detection units are arranged at intervals, the orthographic projection of each photoelectric detection unit on the light-emitting layer avoids the light-emitting unit, and the photoelectric detection units are used for receiving signals returned by the detection signals after being reflected by the object to be detected so as to detect the distance;
wherein the distance is calculated according to the propagation speed of the detection signal and the propagation time of the detection signal, or the distance is calculated according to the propagation speed of the detection signal, the propagation time of the detection signal and the angle at which the photoelectric detector receives the detection signal;
Wherein, the working voltage of the photoelectric detection units near the circumference side of the plurality of photoelectric detection units is higher than the voltage of the photoelectric detection units near the middle part.
2. The display screen of claim 1, wherein a gap is provided between two adjacent light emitting units in the plurality of light emitting units, each of the photo-detection units is disposed in the gap, and each of the photo-detection units is disposed corresponding to a different one of the gaps.
3. The display screen of claim 2, further comprising a pixel defining layer, the pixel defining layer comprising a plurality of pixel opening areas and a wall portion surrounding the pixel opening areas, the light emitting unit being located in the pixel opening areas, the light emitting unit having a light exit surface for emitting light; the retaining wall part is also provided with a plurality of first accommodating spaces, the first accommodating spaces are used for accommodating the photoelectric detection units, the retaining wall part is provided with a light transmission area, and the light transmission area is arranged corresponding to the photoelectric detection units so as to transmit detection signals.
4. The display screen of claim 2, wherein the photo-detection unit comprises a photo-detection body; the display screen further comprises a pixel limiting layer, wherein the pixel limiting layer comprises a plurality of pixel opening areas and a retaining wall part which is surrounded to form the pixel opening areas, the light emitting unit is positioned in the pixel opening areas and is provided with a light emitting surface, and the light emitting surface is used for emitting light rays; the retaining wall part is also provided with a plurality of first accommodating spaces, the first accommodating spaces are used for accommodating the photoelectric detection bodies, the retaining wall part is provided with a light transmission area, and the light transmission area is arranged corresponding to the photoelectric detection bodies so as to transmit detection signals.
5. The display screen of claim 1, wherein the light-emitting unit has a light-emitting surface for emitting light;
the display screen further includes:
the light-transmitting substrate is arranged on one side of the light-emitting surface and is provided with a plurality of second accommodating spaces, and each second accommodating space accommodates one photoelectric detection unit.
6. The display screen of claim 1, wherein the light-emitting unit has a light-emitting surface for emitting light;
the display screen further includes:
the pixel limiting layer comprises a plurality of pixel opening areas and a retaining wall part which is surrounded to form the pixel opening areas, and the light emitting units are positioned in the pixel opening areas; a kind of electronic device with high-pressure air-conditioning system
The light-transmitting substrate is arranged on one side of the light-emitting surface;
the photodetector is arranged between the pixel defining layer and the light-transmitting substrate.
7. The display screen of claim 1, further comprising a first electrode layer and a second electrode layer, wherein the first electrode layer and the second electrode layer are respectively located on two opposite sides of the light emitting layer, the first electrode layer is transparent, the second electrode layer is non-transparent, the second electrode layer is disposed corresponding to the plurality of light emitting units, the first electrode layer comprises a plurality of first electrode portions disposed at intervals, each first electrode portion is disposed corresponding to one light emitting unit, and the photo detection unit is disposed corresponding to a gap between two adjacent first electrode portions.
8. The display screen of claim 1, further comprising a pixel defining layer, a first electrode layer and a second electrode layer, wherein the pixel defining layer comprises a plurality of pixel opening areas and a retaining wall portion surrounding the pixel opening areas, the light emitting units are located in the pixel opening areas, the first electrode layer and the second electrode layer are respectively located at two opposite sides of the light emitting layer, the first electrode layer is transparent, the first electrode layer is arranged corresponding to the plurality of light emitting units, the second electrode layer is non-transparent, the second electrode layer comprises a plurality of second electrode portions, and each second electrode portion is arranged corresponding to one light emitting unit; the first electrode layer is provided with a plurality of avoidance holes, each avoidance hole corresponds to one retaining wall portion, and the photoelectric detection unit is arranged in each avoidance hole.
9. The display screen of claim 8, wherein the photodetection unit further comprises a third electrode layer and a fourth electrode layer, the third electrode layer is disposed on a side of the photodetection unit that receives the detection signal, the fourth electrode layer is disposed opposite to the third electrode layer, a surface of the third electrode layer facing away from the fourth electrode layer and a surface of the first electrode layer facing away from the second electrode layer are coplanar, and the third electrode layer is disposed at an interval from the first electrode layer.
10. The display screen of claim 1, further comprising a light-transmitting substrate, wherein the photo-detecting unit includes a functional portion and a dividing portion surrounding a periphery of the functional portion, the plurality of photo-detecting units are disposed on the light-transmitting substrate at intervals to surround into a plurality of pixel opening areas, the light-emitting unit is disposed in the pixel opening areas, and a peripheral side surface of the light-emitting unit abuts against a peripheral side surface of the dividing portion.
11. An electronic device, the electronic device comprising:
a housing having an accommodation space;
the display screen of any one of claims 1-10, the display screen being mounted to the housing; a kind of electronic device with high-pressure air-conditioning system
And the processor is accommodated in the accommodating space and is electrically connected with the display screen.
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