CN111785762A - Display screen assembly and electronic equipment - Google Patents

Display screen assembly and electronic equipment Download PDF

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Publication number
CN111785762A
CN111785762A CN202010738801.3A CN202010738801A CN111785762A CN 111785762 A CN111785762 A CN 111785762A CN 202010738801 A CN202010738801 A CN 202010738801A CN 111785762 A CN111785762 A CN 111785762A
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CN
China
Prior art keywords
display screen
distance measuring
layer
transmissive
receiving module
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Granted
Application number
CN202010738801.3A
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Chinese (zh)
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CN111785762B (en
Inventor
问智博
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Oppo Chongqing Intelligent Technology Co Ltd
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Oppo Chongqing Intelligent Technology Co Ltd
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Priority to CN202010738801.3A priority Critical patent/CN111785762B/en
Publication of CN111785762A publication Critical patent/CN111785762A/en
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    • H—ELECTRICITY
    • H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
    • H10K—ORGANIC ELECTRIC SOLID-STATE DEVICES
    • H10K59/00—Integrated devices, or assemblies of multiple devices, comprising at least one organic light-emitting element covered by group H10K50/00
    • H10K59/10—OLED displays
    • H10K59/12—Active-matrix OLED [AMOLED] displays
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S17/00—Systems using the reflection or reradiation of electromagnetic waves other than radio waves, e.g. lidar systems
    • G01S17/02—Systems using the reflection of electromagnetic waves other than radio waves
    • G01S17/06—Systems determining position data of a target
    • G01S17/08—Systems determining position data of a target for measuring distance only
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods

Abstract

The disclosure relates to a display screen assembly and an electronic device, wherein the display screen assembly comprises a display screen and a distance measuring wave absorption layer, the display screen comprises a first transmission area, a second transmission area and a separation display area, the separation display area is positioned between the first transmission area and the second transmission area, the first transmission area can transmit distance measuring waves, and the second transmission area can transmit reflected distance measuring waves; the distance measurement wave absorbing layer is arranged on the back face of the display screen, the distance measurement wave absorbing layer is located in the separation display area, and the distance measurement wave absorbing layer is used for absorbing and transmitting distance measurement waves to the separation display area. The distance measuring waves transmitted to the separated display area are prevented from being reflected to the receiving module, so that the problem that redundant reflected distance measuring waves can cause crosstalk to a detection result of the proximity sensor due to the fact that the reflected distance measuring waves received by the receiving module are not all distance measuring waves reflected by an external obstacle is solved at least to a certain extent, and the detection accuracy of the proximity sensor is improved.

Description

Display screen assembly and electronic equipment
Technical Field
The utility model relates to an electronic equipment technical field particularly, relates to a display screen subassembly and electronic equipment.
Background
With the development and progress of the technology, people have increasingly seen a demand for functions of electronic devices, and the proximity detection function has become one of the indispensable functions in electronic devices such as mobile phones. The proximity detection function is typically implemented by a proximity sensor, which may include a transmitting module and a receiving module. The transmitting module is used for transmitting the distance measuring wave, and the receiving module receives the reflected distance measuring wave. The proximity sensor determines the distance of the external obstacle through the reflected distance measuring waves received by the receiving module, but in practical application, the reflected distance measuring waves received by the receiving module are not all the distance measuring waves reflected by the external obstacle, and redundant reflected distance measuring waves can cause crosstalk to the detection result of the proximity sensor, so that the detection precision is reduced.
Disclosure of Invention
An object of the present disclosure is to provide a display screen assembly and an electronic device, so as to overcome the problem that the redundant reflected distance measuring waves cause crosstalk to the detection result of the proximity sensor due to the fact that the reflected distance measuring waves received by the receiving module are not all distance measuring waves reflected by an external obstacle at least to a certain extent.
According to one aspect of the present disclosure, there is provided a display screen assembly, including:
a display screen comprising a first transmissive region, a second transmissive region and a separate display region, the separate display region being located between the first transmissive region and the second transmissive region, the first transmissive region being permeable to ranging waves and the second transmissive region being permeable to reflected ranging waves;
the range finding wave absorbed layer, the range finding wave absorbed layer is located the display screen, and the range finding wave absorbed layer is located separate the display area, the range finding wave absorbed layer be used for absorbing the transmission extremely separate the range finding wave in display area.
According to another aspect of the present disclosure, there is provided an electronic apparatus including:
the display screen assembly;
the transmitting module is positioned on the back surface of the display screen and used for transmitting ranging waves which can penetrate through the first transmission area;
the receiving module is positioned on the back of the display screen, projection areas of the transmitting module and the receiving module on the display screen are respectively positioned on two sides of the separated display area, and the receiving module is used for receiving the reflected distance measuring waves penetrating through the second transmission area.
The embodiment of the disclosure provides a display screen assembly, the back through the partition display area between first transmission district and second transmission district sets up the range finding wave absorbed layer, absorb the range finding wave of launching to the partition display area through the range finding wave absorbed layer, from having avoided launching to the range finding wave of separating the display area by reflection to receiving module, and then overcome at least to a certain extent because the reflection range finding wave that receiving module received is not all the range finding wave that external obstacle reflects, unnecessary reflection range finding wave can lead to the fact the problem of crosstalking to proximity sensor's testing result, proximity sensor's detection precision has been improved.
It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure. It is to be understood that the drawings in the following description are merely exemplary of the disclosure, and that other drawings may be derived from those drawings by one of ordinary skill in the art without the exercise of inventive faculty.
FIG. 1 is a schematic structural diagram of a first display screen assembly provided in an exemplary embodiment of the present disclosure;
FIG. 2 is a schematic structural diagram of a second display screen assembly provided in an exemplary embodiment of the present disclosure;
FIG. 3 is a schematic structural diagram of a third display screen assembly provided in an exemplary embodiment of the present disclosure;
FIG. 4 is a schematic diagram of a fourth display screen assembly provided in an exemplary embodiment of the present disclosure;
FIG. 5 is a schematic diagram of a fifth display screen assembly provided in an exemplary embodiment of the present disclosure;
FIG. 6 is a schematic structural diagram of a sixth display screen assembly provided in an exemplary embodiment of the present disclosure;
FIG. 7 is a schematic structural diagram of a seventh display screen assembly provided in an exemplary embodiment of the present disclosure;
FIG. 8 is a schematic structural diagram of an eighth display screen assembly provided in an exemplary embodiment of the present disclosure;
FIG. 9 is a schematic structural diagram of a ninth display screen assembly provided in accordance with an exemplary embodiment of the present disclosure;
fig. 10 is a schematic structural diagram of an electronic device according to an exemplary embodiment of the present disclosure.
Detailed Description
Example embodiments will now be described more fully with reference to the accompanying drawings. Example embodiments may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the concept of example embodiments to those skilled in the art. The same reference numerals in the drawings denote the same or similar structures, and thus their detailed description will be omitted.
Although relative terms, such as "upper" and "lower," may be used in this specification to describe one element of an icon relative to another, these terms are used in this specification for convenience only, e.g., in accordance with the orientation of the examples described in the figures. It will be appreciated that if the device of the icon were turned upside down, the element described as "upper" would become the element "lower". When a structure is "on" another structure, it may mean that the structure is integrally formed with the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure via another structure.
The terms "a," "an," "the," "said," and "at least one" are used to indicate the presence of one or more elements/components/parts/etc.; the terms "comprising" and "having" are intended to be inclusive and mean that there may be additional elements/components/etc. other than the listed elements/components/etc.; the terms "first," "second," and the like are used merely as labels, and are not limiting on the number of their objects.
First, in the present exemplary embodiment, there is provided a display screen assembly, as shown in fig. 1, which may include: a display screen 100 and a ranging wave absorbing layer 200, the display screen 100 comprising a first transmissive region 110, a second transmissive region 120 and a separate display region 130, the separate display region 130 being located between the first transmissive region 110 and the second transmissive region 120, the first transmissive region 110 being permeable to ranging waves and the second transmissive region 120 being permeable to reflected ranging waves; the distance measuring wave absorbing layer 200 is disposed on the display screen 100, and the distance measuring wave absorbing layer 200 is disposed in the partitioned display area 130, and the distance measuring wave absorbing layer 200 is used for absorbing the distance measuring waves emitted to the partitioned display area 130.
The distance measuring wave absorbing layer 200 may be disposed on the back of the display screen 100, the light emitting surface of the display screen 100 is the front surface, and the surface of the display screen far from the light emitting surface is the back surface. The reflected distance measuring wave is the distance measuring wave which is transmitted by the transmitting module and reflected to the receiving module through an external barrier.
The display screen assembly provided by the embodiment of the disclosure, the distance measuring wave absorption layer 200 is arranged on the back surface of the separation display area 130 between the first transmission area 110 and the second transmission area 120, the distance measuring wave transmitted to the separation display area 130 is absorbed through the distance measuring wave absorption layer 200, the distance measuring wave transmitted to the separation display area 130 is prevented from being reflected to the receiving module, and therefore the problem that the redundant reflection distance measuring wave can cause crosstalk to the detection result of the proximity sensor due to the fact that the reflection distance measuring wave received by the receiving module is not the distance measuring wave reflected by the external obstacle is overcome at least to a certain extent, and the detection accuracy of the proximity sensor is improved.
The following will explain the display screen assembly provided by the embodiment of the disclosure in detail:
the display screen 100 provided by the embodiment of the present disclosure may be an OLED display screen, and as shown in fig. 2, the display screen 100 may include a substrate 11, a driving circuit layer 12, a light emitting layer 13, and a cover glass 14. The drive circuit layer 12 is provided on the substrate 11, the light-emitting layer 13 is provided on the side of the drive circuit layer 12 away from the substrate 11, and the cover glass 14 is provided on the side of the light-emitting layer 13 away from the drive circuit layer 12.
The substrate 11 may be a glass substrate 11, a silicon substrate 11, a plastic substrate 11, or the like. The driving circuit layer 12 includes a source/drain metal layer, a gate layer, an insulating layer, and a planarization layer. The source-drain metal layer and the grid layer are used for forming a transistor array, and a plurality of transistors in the transistor array are connected to form a driving circuit. The light emitting layer 13 may include a common electrode layer, a pixel electrode layer, a light emitting unit, and a pixel defining layer. The pixel electrode layer is provided on the side of the driver circuit layer 12 away from the substrate 11, and the pixel electrode layer is connected to the pixel circuit in the driver circuit layer 12. The light emitting units are disposed on a side of the pixel electrode layer away from the driving circuit layer 12, and the pixel defining layer surrounds the light emitting units for separating different light emitting units. The common electrode layer is arranged on one side of the light-emitting unit far away from the pixel electrode layer.
In one possible embodiment of the present disclosure, the display screen 100 may be a hole-dug screen, the first transmissive region 110 includes a first transmissive hole 113, and the second transmissive region 120 includes a second transmissive hole 123. The first transmission hole 113 of the first transmission region 110 may penetrate the driving circuit layer 12 and the light emitting layer 13. The second transmission hole 123 of the second transmission region 120 may penetrate the driving circuit layer 12 and the light emitting layer 13.
The divided display region 130 may be positioned between the first and second transmission holes 113 and 123, and the ranging wave absorbing layer 200 is provided on the divided display region 130. The distance measuring wave absorbing layer 200 may be disposed on the substrate 11 of the display screen 100, for example, the distance measuring wave absorbing layer 200 may be disposed on the front surface of the substrate 11 or the back surface of the substrate 11. The side of the substrate 11 close to the driving circuit layer 12 is a front side, and the side of the substrate 11 far from the driving circuit layer 12 is a back side.
When the ranging wave absorbing layer 200 is located on the rear surface of the substrate 11, a groove may be provided on the projection area on the substrate 11 separating the display area 130, and the ranging wave absorbing layer 200 may be provided in the groove. The groove may be formed on the substrate 11 by etching or machining, and the ranging wave absorbing layer 200 may be formed in the groove by coating, exposing, developing, and the like.
Alternatively, as shown in fig. 3, when the display screen 100 is a bang-bang screen, the first transmissive region 110 and the second transmissive region 120 can be located in the bang region of the display screen 100. The bang district can be located the top in display area, and the front in bang district is stamped cover plate glass 14, and the back in bang district can be provided with base plate 11. In this case, the separation display region 130 is located between the first transmissive region 110 and the second transmissive region 120, and the separation display region 130 is only used for separating the first transmissive region 110 and the second transmissive region 120, and is not used for displaying. The distance measuring wave absorbing layer 200 may be disposed on the front surface or the back surface of the substrate 11, but in practical applications, since the display region 130 is not separated for displaying, the distance measuring wave absorbing layer 200 may also be disposed on other layers, for example, the distance measuring wave absorbing layer 200 may be disposed on the back surface of the cover glass 14.
In another possible embodiment of the present disclosure, as shown in fig. 4 and 5, the display screen 100 may be a full-scale display screen 100. The first transmissive region 110 may be used for both display and transmission of the ranging wave, and the second transmissive region 120 may be used for both display and transmission of the ranging wave.
As shown in fig. 6, the first transmissive region 110 may include a plurality of first pixel units 111 and a plurality of first transmissive units 112 therein, and the first pixel units 111 and the first transmissive units 112 are alternately arranged. The first pixel unit 111 may include RGB pixel units (i.e., RGB organic light emitting diodes), and the first transmission unit 112 may be a transparent region. The pixel density of the first transmissive region 110 may be less than that of the normal display region to provide a sufficient arrangement space for the transmissive unit. Other areas of the display screen are provided with conventional pixel cells not shown in the figure.
The first transmissive projection region of the pixel defining layer is provided with an opening, and the first transmissive projection region is a projection region of the first transmissive region 110 on the pixel defining layer. The driving circuit layer 12 may be a transparent driving circuit layer 12, or the driving circuit layer 12 is not provided with traces in a region corresponding to the first transmissive region 110.
The second transmissive region 120 may include a plurality of second pixel units 121 and a plurality of second transmissive units 122 therein, and the second pixel units 121 and the second transmissive units 122 are alternately distributed. The second pixel unit 121 may include RGB pixel units (i.e., RGB organic light emitting diodes), and the second transmission unit 122 may be a transparent region. The pixel density of the second transmissive region 120 may be less than that of the normal display region to provide a sufficient arrangement space for the transmissive unit.
The second transmissive projection region of the pixel defining layer is provided with an opening, and the second transmissive projection region is a projection region of the second transmissive region 120 on the pixel defining layer. The driving circuit layer 12 may be a transparent driving circuit layer 12, or the driving circuit layer 12 is not provided with traces in a region corresponding to the second transmissive region 120.
It will be appreciated that the display device may also be an LCD display device. As shown in fig. 7, the display device may include a substrate 11, a backlight module 15, a driving circuit layer 12, a liquid crystal layer 16, a color film layer (not shown), a cover glass 14, and the like. The backlight module 15 is arranged on the substrate 11, the driving circuit layer 12 is arranged on one side of the backlight module 15 far away from the substrate 11, the liquid crystal layer 16 is arranged on one side of the driving circuit layer 12 far away from the backlight module 15, the color film layer is arranged on one side of the liquid crystal layer 16 far away from the driving circuit layer 12, and the cover glass 14 is arranged on one side of the color film layer far away from the liquid crystal layer 16.
The substrate 11 may be a glass substrate 11, a silicon substrate 11, a plastic substrate 11, or the like. The backlight module 15 is used for providing a light source for the display device. The driving circuit layer 12 includes a source/drain metal layer, a gate layer, an insulating layer, and a planarization layer. The source-drain metal layer and the grid layer are used for forming a transistor array, and a plurality of transistors in the transistor array are connected to form a driving circuit. The liquid crystal layer 16 may include a pixel electrode layer connected to the driving circuit layer 12, a liquid crystal cell between the pixel electrode and the common electrode, and a common electrode layer. The color film layer covers the common electrode layer, and a plurality of color units are arranged on the color film layer to form RGB pixel units. The color cells may be surrounded by a black matrix layer.
In one possible embodiment of the present disclosure, as shown in fig. 7, the display screen 100 may be a dug-hole screen, the first transmissive region 110 includes a first transmissive hole 113, and the second transmissive region 120 includes a second transmissive hole 123. The first transmission hole 113 of the first transmission region 110 may penetrate the driving circuit layer 12 and the light emitting layer 13. The second transmission hole 123 of the second transmission region 120 may penetrate the driving circuit layer 12 and the light emitting layer 13.
The divided display region 130 may be positioned between the first and second transmission holes 113 and 123, and the ranging wave absorbing layer 200 is provided on the divided display region 130. The distance measuring wave absorbing layer 200 may be disposed on the substrate 11 of the display screen 100, for example, the distance measuring wave absorbing layer 200 may be disposed on the front surface of the substrate 11 or the back surface of the substrate 11. The side of the substrate 11 close to the driving circuit layer 12 is a front side, and the side of the substrate 11 far from the driving circuit layer 12 is a back side.
In another possible embodiment of the present disclosure, as shown in fig. 8, the display panel may be a full-screen panel, the first transmissive region 110 may include a plurality of first pixel units 111 and a plurality of first transmissive units 112 therein, and the first pixel units 111 and the first transmissive units 112 are distributed in an interlaced manner. The first pixel unit 111 may include an RGB pixel unit (i.e., an RGB color film unit), and the first transmission unit 112 may be a transparent region. The pixel density of the first transmissive region 110 may be less than that of the normal display region to provide a sufficient arrangement space for the transmissive unit.
The first transmissive projection region of the black matrix is provided with an opening, and the first projection region is a projection region of the first transmissive region 110 on the black matrix layer. The driving circuit layer 12 may be a transparent driving circuit layer 12, or the driving circuit layer 12 is not provided with traces in a region corresponding to the first transmissive region 110. The first projection area on the backlight module 15 is provided with a through hole through which the distance measuring wave emitted by the emitting module can pass to be emitted.
In the first transmissive region 110, the pixel electrode may include a display pixel electrode and a transmissive pixel electrode, the display transmissive electrode being opposite to the pixel unit for forming an electric field at the pixel unit to drive the liquid crystal to deflect. The transmissive pixel electrode is opposite to the projection unit for forming an electric field at the transmissive unit to drive the liquid crystal to deflect.
The second transmissive region 120 may include a plurality of second pixel units 121 and a plurality of second transmissive units 122 therein, and the second pixel units 121 and the second transmissive units 122 are alternately distributed. The second pixel unit 121 may include an RGB pixel unit, and the second transmission unit 122 may be a transparent region. The pixel density of the second transmissive region 120 may be less than that of the normal display region to provide a sufficient arrangement space for the transmissive unit.
The second transmissive projection region of the pixel defining layer is provided with an opening, and the second transmissive projection region is a projection region of the second transmissive region 120 on the pixel defining layer. The driving circuit layer 12 may be a transparent driving circuit layer 12, or the driving circuit layer 12 is not provided with traces in a region corresponding to the second transmissive region 120.
In the second transmissive region 120, the pixel electrode may include a display pixel electrode and a transmissive pixel electrode, the display transmissive electrode being opposite to the pixel unit for forming an electric field at the pixel unit to drive the liquid crystal to deflect. The transmissive pixel electrode is opposite to the projection unit for forming an electric field at the transmissive unit to drive the liquid crystal to deflect.
It should be noted that, in the embodiment of the present disclosure, the distance measuring wave absorbing layer 200 may be disposed not only in the groove of the substrate 11, but also the distance measuring wave absorbing layer 200 may be directly disposed on the surface of the substrate 11, which is not specifically limited in the embodiment of the present disclosure.
The distance measuring wave provided by the embodiment of the disclosure can be one or more of laser, ultrasonic or infrared. The distance measuring wave is emitted from the emitting module, is reflected when being transmitted to the obstacle, the reflected distance measuring wave is received by the receiving module, and the electronic equipment can determine the distance of the obstacle according to the received reflected wave.
When the distance measuring wave is laser, the transmitting module is a laser transmitting module, the receiving module is a laser receiving module, and the distance measuring wave absorption layer is a laser absorption layer. The laser that the emission module transmitted to separating the display area is absorbed by the laser absorption layer, and receiving module only receives the laser of barrier reflection this moment to thereby avoided separating the display area reflection range finding laser and caused receiving module to receive and crosstalk.
The back surface of the substrate 11 is formed with a groove, the laser absorption layer is located in the groove, and the surface of the laser absorption layer away from the bottom of the groove is flush with the back surface of the substrate 11. The laser light absorption layer may be a black material layer, and the surface roughness of the black material layer may be greater than a preset threshold to increase the absorption rate of the laser light. The material of the laser absorption layer may be one or more of graphite, carbon black, titanium oxide, zirconium oxide, and phosphate. The laser absorption layer may be formed by deposition, plating, spraying, printing, or the like.
When the range finding ripples is the ultrasonic wave, the transmission module is ultrasonic wave transmission module, and the receiving module is ultrasonic wave receiving module, and range finding ripples absorbed layer 200 is the ultrasonic wave absorbed layer. The ultrasonic wave that the emission module sent to separating display area 130 is absorbed by the ultrasonic wave absorbing layer, and receiving module only receives the ultrasonic wave of barrier reflection this moment to thereby avoided separating display area 130 reflection range finding ultrasonic wave and causing receiving module to receive the crosstalk.
The back surface of the substrate 11 is formed with a groove, the laser absorption layer is positioned in the groove, and the surface of the ultrasonic absorption layer away from the bottom of the groove is flush with the back surface of the substrate 11. The ultrasonic wave absorption layer may be a black material layer, and the surface roughness of the black material layer may be greater than a preset threshold value to increase the absorption rate of the ultrasonic wave. The material of the ultrasonic wave absorption layer can be one or more of filter cotton, rubber, glass cement, sponge and silica gel sheet. The ultrasonic absorption layer may be formed by deposition, coating, spraying, printing, etc., and certainly, in practical applications, the ultrasonic absorption layer may be formed separately and then connected to the separated display area 130 by means of adhesion, etc.
When the distance measuring wave is infrared, the transmitting module is an infrared transmitting module, the receiving module is an infrared receiving module, and the distance measuring wave absorbing layer 200 is an infrared absorbing layer. The infrared ray that the emission module sent to separating display area 130 is absorbed by the infrared absorption layer, and receiving module only receives the infrared ray of barrier reflection this moment to thereby avoided separating display area 130 reflection range finding infrared ray and causing receiving module to receive the crosstalk.
The back surface of the substrate 11 is formed with a groove, the infrared absorption layer is positioned in the groove, and the surface of the infrared absorption layer away from the bottom of the groove is flush with the back surface of the substrate 11. The infrared ray absorption layer may be a black material layer, and the surface roughness of the black material layer may be greater than a preset threshold to increase the absorption rate of infrared rays. The material of the infrared absorbing layer may be one or more of alumina, graphite, carbon black, titanium oxide, zirconium oxide, and phosphate. The ultrasonic absorption layer may be formed by deposition, coating, spraying, printing, etc., and certainly, in practical applications, the ultrasonic absorption layer may be formed separately and then connected to the separated display area 130 by means of adhesion, etc.
Further, as shown in fig. 9, the display module according to the embodiment of the disclosure may further include a heat dissipation unit 150, the heat dissipation unit 150 is connected to the distance measurement wave absorbing layer 200, and the heat dissipation unit 150 is configured to conduct out heat generated by the distance measurement wave absorbing layer 200, so as to prevent the distance measurement wave absorbing layer 200 from locally generating heat, and thus, the display and the service life of the display module are not affected.
The heat dissipation unit 150 may include a first heat dissipation part 151 and a second heat dissipation part 152, and the first heat dissipation part 151 is connected to the ranging wave absorbing layer 200. For example, the first heat sink member 151 may be a heat sink, and the heat sink may be disposed between the distance measuring wave absorbing layer 200 and the substrate 11; or the first heat sink member 151 may be a heat sink ring surrounding the ranging wave absorbing layer 200. The second heat sink member 152 may be a heat conductive bar, one end of which is connected to the first heat sink member 151, and the second end of which may be connected to a heat sink of the electronic device.
The heat sink may be formed in a groove on the substrate 11, and the ranging wave absorbing layer 200 is formed on a side of the heat sink away from the bottom of the groove. Or a heat dissipating ring is provided at the edge of the groove on the substrate 11 and then the ranging wave absorbing layer 200 is formed in the heat dissipating ring. The glass substrate 11 can be further provided with a heat dissipation groove, and the heat dissipation strip is arranged on the heat dissipation groove, so that the heat dissipation strip can be hidden in the thickness direction of the electronic equipment, the heat dissipation strip is prevented from increasing the thickness of the electronic equipment, and the light and thin electronic equipment is facilitated.
The display screen assembly provided by the embodiment of the disclosure, the distance measuring wave absorption layer 200 is arranged on the back surface of the separation display area 130 between the first transmission area 110 and the second transmission area 120, the distance measuring wave transmitted to the separation display area 130 is absorbed through the distance measuring wave absorption layer 200, the distance measuring wave transmitted to the separation display area 130 is prevented from being reflected to the receiving module, and therefore the problem that the redundant reflection distance measuring wave can cause crosstalk to the detection result of the proximity sensor due to the fact that the reflection distance measuring wave received by the receiving module is not the distance measuring wave reflected by the external obstacle is overcome at least to a certain extent, and the detection accuracy of the proximity sensor is improved.
The present exemplary embodiment also provides an electronic device, as shown in fig. 10, the electronic device includes the above-mentioned display screen assembly, a transmitting module 310 and a receiving module 320, the transmitting module 310 is located at the back of the display screen 100, the transmitting module 310 is used for transmitting a distance measuring wave, and the distance measuring wave can pass through the first transmissive area 110; the receiving module 320 is located at the back of the display screen 100, the projection areas of the transmitting module 310 and the receiving module 320 on the display screen 100 are respectively located at two sides of the separated display area 130, and the receiving module 320 is used for receiving the reflected distance measuring wave transmitted through the second transmission area 120.
The electronic device provided by the embodiment of the disclosure sets the distance measuring wave absorbing layer 200 on the back surface of the separation display area 130 between the first transmission area 110 and the second transmission area 120, and absorbs the distance measuring waves transmitted to the separation display area 130 through the distance measuring wave absorbing layer 200, so that the distance measuring waves transmitted to the separation display area 130 are prevented from being reflected to the receiving module 320, and further, the problem that the redundant reflected distance measuring waves cause crosstalk to the detection result of the proximity sensor due to the fact that the reflected distance measuring waves received by the receiving module 320 are not all the distance measuring waves reflected by the external obstacle is overcome at least to a certain extent, and the detection accuracy of the proximity sensor is improved.
Further, the electronic device provided by the embodiment of the present disclosure may further include a housing assembly 400 and an isolation layer 330. The display screen 100 and the housing assembly 400 are connected to form a receiving cavity, and the transmitting module 310 and the receiving module 320 are disposed in the receiving cavity. The isolation layer 330 is disposed in the accommodating cavity, and the isolation layer 330 surrounds the transmitting module 310 and the receiving module 320 for blocking the distance measuring wave from diffusing in the accommodating cavity.
The following describes portions of an electronic device provided in an embodiment of the present disclosure in detail:
the electronic device in the embodiment of the present disclosure may be a mobile phone, a tablet computer, a notebook computer, an electronic reader, a vehicle-mounted computer, or the like.
The projection of the emitting module 310 on the display screen 100 is located in the first transmissive region 110, and the projection of the receiving module 320 on the display screen 100 is located in the second transmissive region 120. The distance measuring wave emitted by the emitting module 310 can be transmitted to the external obstacle through the first transmissive region 110, and the distance measuring wave reflected by the external obstacle can enter the receiving module 320 through the second transmissive region 120.
The distance measuring wave provided by the embodiment of the disclosure can be one or more of laser, ultrasonic or infrared. The distance measuring wave is emitted from the emitting module 310, and is reflected when propagating to the obstacle, the reflected distance measuring wave is received by the receiving module 320, and the electronic device can determine the distance of the obstacle according to the received reflected wave.
When the distance measuring wave is a laser, the transmitting module 310 is a laser transmitting module 310, the receiving module 320 is a laser receiving module 320, and the distance measuring wave absorbing layer 200 is a laser absorbing layer. The laser emitted from the emitting module 310 to the separated display area 130 is absorbed by the laser absorption layer, and at this time, the receiving module 320 only receives the laser reflected by the obstacle, so as to avoid receiving crosstalk of the receiving module 320 caused by the distance measuring laser reflected by the separated display area 130.
Based on this, the emission module 310 may include a laser generator and a controller, the controller providing an electrical signal to the laser generator, the laser generator generating laser light upon excitation of the electrical signal. For example, the laser generator may include a laser diode that generates laser light upon excitation by an electrical signal. The receiving module 320 may include a photoelectric conversion device that receives laser light reflected by an external obstacle and converts the laser light signal into an electrical signal.
When the distance measuring wave is an ultrasonic wave, the transmitting module 310 is an ultrasonic transmitting module 310, the receiving module 320 is an ultrasonic receiving module 320, and the distance measuring wave absorbing layer 200 is an ultrasonic absorbing layer. The ultrasonic waves transmitted to the separated display area 130 by the transmitting module 310 are absorbed by the ultrasonic absorption layer, and at this time, the receiving module 320 only receives the ultrasonic waves reflected by the obstacle, so that the receiving crosstalk of the receiving module 320 caused by the distance measuring ultrasonic waves reflected by the separated display area 130 is avoided.
On this basis, the transmitting module 310 may include an ultrasonic generator and a controller, the controller providing an electric signal to the ultrasonic generator, the ultrasonic generator generating ultrasonic waves under excitation of the electric signal. For example, the laser generator may include an oscillation circuit that generates ultrasonic light when excited by an electrical signal. The receiving module 320 may include an electromagnetic vibrating plate, which receives the ultrasonic wave reflected by the external obstacle, and generates vibration under the action of the ultrasonic wave to convert the ultrasonic wave signal into an electrical signal.
When the distance measuring wave is infrared, the emitting module 310 is an infrared emitting module 310, the receiving module 320 is an infrared receiving module 320, and the distance measuring wave absorbing layer 200 is an infrared absorbing layer. The infrared rays emitted from the emitting module 310 to the separated display area 130 are absorbed by the infrared absorption layer, and at this time, the receiving module 320 only receives the infrared rays reflected by the obstacle, so as to avoid receiving crosstalk of the receiving module 320 caused by the distance measuring infrared rays reflected by the separated display area 130.
On this basis, the emitting module 310 may include an infrared ray generator and a controller, the controller providing an electrical signal to the infrared ray generator, and the infrared ray generator generating infrared rays under excitation of the electrical signal. For example, the infrared generator may include a light emitting diode that generates infrared light when excited by an electrical signal. The receiving module 320 may include a photoelectric conversion device that receives infrared rays reflected by an external obstacle, and converts infrared signals into electrical signals.
The case assembly 400 may include a rear cover 410, a middle frame 430, and a main board 420, the middle frame 430 being connected with the rear cover 410; the main board 420 is connected to the middle frame 430, the transmitter module 310 is disposed on the middle frame 430 or the main board 420, and the receiver module 320 is disposed on the middle frame 430 or the main board 420.
When the display screen 100 is a bang display screen 100, the first transmission region 110 and the second transmission region 120 are disposed in the bang region, the transmission module 310 and the reception module 320 may be disposed in the middle frame 430 at this time, the transmission module 310 and the reception module 320 may be connected to the main board 420 through a flexible circuit board, and the flexible circuit board is used for realizing signal interaction between the transmission module 310 and the main board 420 and signal interaction between the reception module 320 and the main board 420. Certainly, in practical applications, the main board 420 may also extend to the edge of the middle frame 430, and the transmitting module 310 and the receiving module 320 may be disposed on the main board 420, which is not limited in the embodiment of the disclosure.
When the display screen 100 is a full-screen, the first transmissive region 110 and the second transmissive region 120 may be disposed in an inner region of the display screen 100. At this time, the receiving module 320 and the transmitting module 310 can be disposed on the motherboard 420, and the receiving module 320 and the processor, and the transmitting module 310 and the processor are connected through the traces on the motherboard 420.
The isolation layer 330 may be a ring structure in which the transmitting module 310 and the receiving module 320 are located. The isolation layer 330 may be made of a light absorption material, and the distance measuring wave diffused to the periphery is absorbed by the isolation layer 330, thereby preventing the distance measuring wave from leaking. Illustratively, the material of the spacer layer 330 may be the same as the material of the ranging wave absorbing layer 200.
Further, the electronic device provided by the embodiment of the present disclosure may further include a heat dissipation device, which may be an active heat dissipation device, such as an air cooling heat dissipation device or a liquid cooling heat dissipation device. Or the heat sink may be a passive heat sink, such as a graphite or metal heat sink. The heat dissipation device of the electronic device may be connected to the heat dissipation unit 150 in the panel assembly, and certainly, in practical applications, the heat dissipation unit 150 in the panel assembly may also dissipate heat alone, which is not limited in the embodiment of the present disclosure.
The electronic device provided by the embodiment of the disclosure sets the distance measuring wave absorbing layer 200 on the back surface of the separation display area 130 between the first transmission area 110 and the second transmission area 120, and absorbs the distance measuring waves transmitted to the separation display area 130 through the distance measuring wave absorbing layer 200, so that the distance measuring waves transmitted to the separation display area 130 are prevented from being reflected to the receiving module 320, and further, the problem that the redundant reflected distance measuring waves cause crosstalk to the detection result of the proximity sensor due to the fact that the reflected distance measuring waves received by the receiving module 320 are not all the distance measuring waves reflected by the external obstacle is overcome at least to a certain extent, and the detection accuracy of the proximity sensor is improved.
Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This application is intended to cover any variations, uses, or adaptations of the disclosure following, in general, the principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

Claims (11)

1. A display screen assembly, the display screen assembly comprising:
a display screen comprising a first transmissive region, a second transmissive region and a separate display region, the separate display region being located between the first transmissive region and the second transmissive region, the first transmissive region being permeable to ranging waves and the second transmissive region being permeable to reflected ranging waves;
the range finding wave absorbed layer, the range finding wave absorbed layer is located the display screen, and the range finding wave absorbed layer is located separate the display area, the range finding wave absorbed layer be used for absorbing the transmission extremely separate the range finding wave in display area.
2. The display screen assembly of claim 1, wherein the ranging wave absorbing layer is disposed on a substrate of the display screen.
3. The display screen assembly of claim 2, wherein the back surface of the substrate is formed with a recess, the ranging wave absorbing layer is positioned within the recess, and a surface of the ranging wave absorbing layer away from a bottom of the recess is flush with the back surface of the substrate.
4. The display screen assembly of claim 1, wherein the distance measuring wave absorbing layer is a light absorbing material.
5. The display screen assembly of claim 1, wherein the first transmissive region includes a first transmissive aperture and the second transmissive region includes a second transmissive aperture.
6. The display panel assembly of claim 1, wherein the first transmissive region includes a plurality of first pixel cells and a plurality of first transmissive cells, the first pixel cells and the first transmissive cells being alternately arranged, the ranging wave being capable of passing through the first transmissive cells;
the second transmission area comprises a plurality of second pixel units and a plurality of second transmission units, the second pixel units and the second transmission units are distributed in a staggered mode, and the reflected ranging waves can penetrate through the second transmission units.
7. An electronic device, characterized in that the electronic device comprises:
the display screen assembly of any one of claims 1-6;
the transmitting module is positioned on the back surface of the display screen and used for transmitting ranging waves, and the ranging waves can penetrate through the first transmission area;
the receiving module is located on the back face of the display screen, projection areas of the transmitting module and the receiving module on the display screen are located on two sides of the separated display area respectively, and the receiving module is used for receiving the reflected distance measuring waves which penetrate through the second transmission area.
8. The electronic device of claim 7, wherein a projection of the transmit module on the display screen is located in the first transmissive region and a projection of the receive module on the display screen is located in the second transmissive region.
9. The electronic device of claim 7, wherein the electronic device further comprises:
the display screen and the shell assembly are connected to form a containing cavity, and the transmitting module and the receiving module are arranged in the containing cavity.
10. The electronic device of claim 9, wherein the electronic device further comprises:
the isolation layer is arranged in the accommodating cavity, surrounds the transmitting module and the receiving module and is used for blocking the distance measuring waves from diffusing in the accommodating cavity.
11. The electronic device of claim 9, wherein the housing assembly comprises:
a rear cover;
the middle frame is connected with the rear cover;
the mainboard, the mainboard connect in the center, the transmission module is located the center perhaps the mainboard, receiving module locates the center perhaps the mainboard.
CN202010738801.3A 2020-07-28 2020-07-28 Display screen assembly and electronic equipment Active CN111785762B (en)

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