CN113467646B - Display panel and display device - Google Patents
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- CN113467646B CN113467646B CN202110740703.8A CN202110740703A CN113467646B CN 113467646 B CN113467646 B CN 113467646B CN 202110740703 A CN202110740703 A CN 202110740703A CN 113467646 B CN113467646 B CN 113467646B
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Classifications
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/042—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means
- G06F3/0421—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means by opto-electronic means by interrupting or reflecting a light beam, e.g. optical touch-screen
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0416—Control or interface arrangements specially adapted for digitisers
- G06F3/0418—Control or interface arrangements specially adapted for digitisers for error correction or compensation, e.g. based on parallax, calibration or alignment
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/048—Interaction techniques based on graphical user interfaces [GUI]
- G06F3/0487—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser
- G06F3/0488—Interaction techniques based on graphical user interfaces [GUI] using specific features provided by the input device, e.g. functions controlled by the rotation of a mouse with dual sensing arrangements, or of the nature of the input device, e.g. tap gestures based on pressure sensed by a digitiser using a touch-screen or digitiser, e.g. input of commands through traced gestures
Abstract
The embodiment of the application discloses a display panel and display device, include: a plurality of first infrared light detection units positioned in a non-display area in the display panel; the first shading layer is positioned in the non-display area in the display panel, and completely covers the plurality of first infrared light detection units and gaps between the adjacent first infrared light detection units in the direction perpendicular to the plane of the display panel; the first shading layer has a transmittance to infrared light greater than that of visible light, so that the proportion of visible light signals in the light signals received by the infrared light detection unit is reduced when the display panel is subjected to infrared recognition, interference of the visible light signals received by the infrared light detection unit on recognition of the received infrared light signals is reduced, recognition accuracy of the infrared light detection unit is improved, light sensation recognition accuracy of the display panel is finally improved, and user experience is improved.
Description
Technical Field
The present disclosure relates to the field of display technologies, and in particular, to a display panel and a display device including the display panel.
Background
With the development of display technology, light sensation recognition functions are integrated in more and more display panels, so that the integration level of the display panels is improved, and the user experience is improved. However, when the conventional display panel integrated with the light sensation identification function is applied, the light sensation identification precision is low, and the user experience is required to be improved.
Disclosure of Invention
In order to solve the above problems, embodiments of the present application provide a display panel and a display device, so as to improve light sensation recognition accuracy, thereby improving user experience.
Specifically, the embodiment of the application provides the following technical scheme:
a display panel, comprising:
a plurality of first infrared light detection units positioned in a non-display area in the display panel;
the first shading layer is positioned in the non-display area in the display panel, and completely covers the plurality of first infrared light detection units and gaps between the adjacent first infrared light detection units in the direction perpendicular to the plane of the display panel;
the first shading layer has a transmittance for infrared light greater than a transmittance for visible light.
A display device, comprising:
a display panel according to any one of claims 1 to 13;
and the backlight module is positioned on the non-display side of the display area of the display panel.
The display panel and the display device comprising the same provided by the embodiment of the application are characterized in that when the first infrared light detection unit, the second infrared light detection unit and/or the third infrared light detection unit are arranged in the display panel, the first shading layer, the second shading layer, the third shading layer and the like corresponding to the first infrared light detection unit, the second infrared light detection unit and the third infrared light detection unit are arranged in the display panel, the transmittance of the first shading layer, the second shading layer, the third shading layer and the like to infrared light is larger than that of the first shading layer, the second shading layer, the third shading layer and the like, so that the proportion of visible light signals in the light signals received by the infrared light detection unit is reduced when the display panel is subjected to infrared identification, the interference of the visible light signals received by the infrared light detection unit when the visible light signals are used for identifying the received by the infrared light detection unit is reduced, the identification precision of the infrared light detection unit is improved, the light sensing identification precision of the display panel is finally improved, and the user experience is improved.
Drawings
In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, it being obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
FIG. 1 is a schematic top view of a display panel according to an embodiment of the present disclosure;
FIG. 2 is a cross-sectional view of the display panel of FIG. 1 along the direction AA';
FIG. 3 is a schematic diagram showing wavelength distribution of different optical bands;
FIG. 4 is a schematic top view of a display panel according to another embodiment of the present disclosure;
FIG. 5 is a cross-sectional view of the display panel of FIG. 4 along the BB' direction;
FIG. 6 is a schematic top view of a display panel according to another embodiment of the disclosure;
fig. 7 is a cross-sectional view of the display panel of fig. 6 along the CC' direction;
fig. 8 is another cross-sectional view of the display panel shown in fig. 6 in the CC' direction;
fig. 9 is a further cross-sectional view of the display panel shown in fig. 6 in the direction CC';
fig. 10 is a further sectional view of the display panel shown in fig. 6 in the CC' direction;
FIG. 11 is a schematic top view of a display panel according to another embodiment of the disclosure;
FIG. 12 is a cross-sectional view of the display panel of FIG. 11 along DD';
FIG. 13 is a schematic top view of a display panel according to another embodiment of the disclosure;
FIG. 14 is a cross-sectional view of the display panel shown in FIG. 13 along the direction EE';
fig. 15 is another sectional view of the display panel shown in fig. 13 along EE' direction;
FIG. 16 is a further cross-sectional view of a display panel according to one embodiment of the present application;
FIG. 17 is a further cross-sectional view of a display panel according to one embodiment of the present application;
FIG. 18 is a further cross-sectional view of a display panel according to one embodiment of the present application;
FIG. 19 is a further cross-sectional view of a display panel according to one embodiment of the present application;
FIG. 20 is a further cross-sectional view of a display panel according to one embodiment of the present application;
fig. 21 is a cross-sectional view of a display device according to an embodiment of the present application.
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 without undue burden from the present disclosure, are within the scope of the present disclosure.
In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present application, but the present application may be practiced in other ways other than those described herein, and persons skilled in the art will readily appreciate that the present application is not limited to the specific embodiments disclosed below.
As described in the background section, when the existing display panel integrated with the light sensation recognition function is applied, the light sensation recognition accuracy is low, and the user experience needs to be improved.
The inventor researches find that, in practical application, the position corresponding to the infrared sensor in the display panel transmits visible light besides infrared light, and the infrared sensor can sense visible light besides infrared light.
The existing display panel integrated with the light sensation recognition function generally adopts infrared light to perform light sensation recognition, specifically, infrared light is emitted through an external infrared lamp, light sensation recognition is performed through reflected light after the infrared light irradiates a target object, the infrared light emitted by the external infrared lamp is divergent light, and the reflected light after the infrared light emitted by the infrared lamp irradiates the target object also diverges in a transmission path, so that the infrared light received by an area where an infrared sensor is located is smaller in light quantity and light intensity, and the visible light received by the infrared sensor greatly interferes with the received infrared light during recognition, so that the recognition accuracy of the infrared sensor is affected.
Although the intensity of light emitted by the infrared lamp can be increased by increasing the driving current of the infrared lamp, thereby increasing the sensing amount received by the infrared sensor, the power consumption of the display panel is increased, resulting in greater power consumption of the display panel.
In view of this, the embodiment of the present application provides a display panel, as shown in fig. 1, including a display area 100 and a non-display area 200, and fig. 2 shows a schematic cross-sectional view of the display panel shown in fig. 1 along the AA' direction, as shown in fig. 2, where the display panel includes:
a plurality of first infrared light detection units 10 located in the non-display area 200 within the display panel;
a first light shielding layer 20 located in the non-display area 200 within the display panel, the first light shielding layer completely covering the first infrared light detection unit 10 and a gap between adjacent first infrared light detection units 10 in a direction perpendicular to a plane in which the display panel is located;
wherein, the transmittance of the first light shielding layer 20 to infrared light is larger than that to visible light.
According to the display panel provided by the embodiment of the application, when the first infrared light detection unit 10 is arranged in the non-display area 200 in the display panel, the first shading layer 20 is arranged in the non-display area 200 in the display panel, and the transmittance of the first shading layer 20 to infrared light is larger than that of the first shading layer to visible light, so that the visible light signal received by the first infrared light detection unit 10 is reduced when the display panel is subjected to infrared recognition, and then the interference of the visible light signal received by the first infrared light detection unit 10 on the recognition of the received infrared light signal is reduced, the recognition precision of the first infrared light detection unit 10 is improved, the light sensation recognition precision of the display panel is finally improved, and the user experience is improved.
Specifically, on the basis of the foregoing embodiments, in one embodiment of the present application, the first infrared light detection unit is an infrared light detection sensor, but the present application is not limited thereto, and in other embodiments of the present application, the first infrared light detection unit may also be other elements that can detect infrared light, where appropriate.
Optionally, on the basis of any one of the foregoing embodiments, in an embodiment of the present application, the transmittance of the first light shielding layer for infrared light is not less than 90%, and the transmittance for visible light is not greater than 5%, so as to further reduce the visible light signal received by the first infrared light detecting unit when the display panel performs infrared identification, thereby further reducing interference of the visible light signal received by the first infrared light detecting unit when the visible light signal identifies the received infrared light signal, improving the identification precision of the first infrared light detecting unit, further improving the light sensation identification precision of the display panel, and improving the user experience. However, the present application is not limited thereto, and the present application is not limited thereto as the case may be.
As shown in fig. 3, fig. 3 shows wavelength distributions of ultraviolet light, visible light and infrared light, and as can be seen from fig. 3, the wavelengths of infrared light are all greater than 800nm, and the wavelengths of visible light and ultraviolet light are all less than 800nm, so in a specific embodiment of the present application, the transmittance of the first light shielding layer for light with a wavelength not less than 900nm is not less than 90%, and the transmittance for light with a wavelength less than 900nm is not more than 5%, so as to reduce the signal amount of other light signals except for infrared light signals in the light signals received by the first infrared light detection unit, reduce the recognition accuracy of the other light signals except for infrared light signals in the light signals received by the first infrared light detection unit when the first infrared light detection unit detects the infrared light signals received by the first infrared light detection unit, improve the light sensation recognition accuracy of the display panel, and improve the user experience. However, the present application is not limited thereto, and the present application is not limited thereto as the case may be.
On the basis of any of the foregoing embodiments, in one embodiment of the present application, the first light shielding layer may be a light shielding layer made of a plastic (such as Polycarbonate, abbreviated as PC), a acrylic (such as polymethyl methacrylate, poly Methyl Methacrylate, abbreviated as PMMA), silicon, germanium, or an infrared light transmitting film, which is not limited in this application, and is specifically defined as the case may be.
On the basis of any of the above embodiments, in one embodiment of the present application, as shown in fig. 4, the display area 100 of the display panel includes a first area 110 and a second area 120, where the first area 110 in the display area 100 of the display panel has a first light hole 30, and fig. 5 shows a schematic cross-sectional view of the display panel shown in fig. 4 along the BB' direction, as shown in fig. 5, and in this embodiment, the display panel further includes: the infrared light emitting unit 40 located in the first area 110 of the display panel, as shown in fig. 4 and 5, emits the infrared light emitted by the infrared light reflecting unit 40 out of the display panel through the first light hole 30, reflects the infrared light by the target object, and then emits the infrared light into the non-display area 200 of the display panel, and the infrared light is received by the first infrared light detecting unit 10 for light sensation recognition. However, the present application is not limited thereto, and in other embodiments of the present application, the display panel may not include the infrared light emitting unit 40, and an external infrared light emitting unit may be used as the case may be.
On the basis of any of the above embodiments, in one embodiment of the present application, as shown in fig. 6, the first area 110 in the display area 100 of the display panel further has the second light holes 50, fig. 7 shows a schematic cross-sectional view of the display panel shown in fig. 6 along the CC' direction, as shown in fig. 7, and in this embodiment, the display panel further includes: the image acquisition unit 60 is located in the first area 110 of the display panel, and as shown in fig. 6 and 7, the image acquisition unit 60 acquires the image outside the display panel through the second light holes 50, so that the display panel is integrated with an image acquisition function, and the photographing requirement of the user is met. However, the present application is not limited thereto, and in other embodiments of the present application, the display panel may not include the image capturing unit 60, and the image capturing unit 60 is located outside the display panel, as shown in fig. 8.
It should be noted that, in the above embodiment, the first infrared light detecting unit 10 is disposed in the non-display area of the display panel, that is, the non-display area of the display panel is provided with an infrared light detecting unit, but this application is not limited thereto.
Optionally, in an embodiment of the present application, as further shown in fig. 6 and fig. 7, the display panel further includes:
the plurality of second infrared light detection units 70 are located in the first area 110 of the display panel, in the plane where the display panel is located, the plurality of second infrared light detection units 70 are located between the first light holes 30 and the second light holes 50, that is, the plurality of second infrared light detection units are located in the runway area 111 of the display panel, so that the distance between the infrared light detection units and the infrared light emitting units is reduced on the basis of increasing the number of the infrared light detection units in the display panel, and the transmission path length of the infrared light signals received by the second infrared light detection units is reduced under the condition that the intensity of the light signals emitted by the infrared light emitting units is the same, so that the detection precision of the second infrared light detection units is improved.
On the basis of the above embodiments, in one embodiment of the present application, as shown in fig. 9, the display panel further includes: the second light shielding layer 80 located in the first area 110 of the display panel, in a direction perpendicular to the plane where the display panel is located, the second light shielding layer 80 completely covers the plurality of second infrared light detection units 70, where the transmittance of the second light shielding layer 80 to infrared light is greater than the transmittance of the second light shielding layer to visible light, so as to reduce the visible light signal received by the second infrared light detection unit 70 when the display panel performs infrared recognition, and further reduce the interference of the visible light signal received by the second infrared light detection unit 70 when the visible light signal performs recognition to the received infrared light signal, improve the recognition precision of the second infrared light detection unit 70, and finally improve the light sensation recognition precision of the display panel and improve the user experience.
Alternatively, in an embodiment of the present application, as shown in fig. 10, the second light shielding layer 80 may further cover a gap between adjacent second infrared light detection units 70, so as to reduce a probability that the second infrared light detection units 70 affect the accuracy of identifying infrared light due to an increase in the visible light signal received by the second infrared light detection units 70 caused by the gap between adjacent second infrared light detection units 70.
It should be noted that the second light shielding layer located in the runway area of the display panel may be an entire layer or may be a plurality of block structures, which is not limited in this application, and is specific to whether the runway area of the display panel has a display function or not.
Specifically, on the basis of the foregoing embodiments, in one embodiment of the present application, the second infrared light detection unit is an infrared light detection sensor, but the present application is not limited thereto, and in other embodiments of the present application, the second infrared light detection unit may also be other elements that can detect infrared light, where appropriate.
Optionally, on the basis of any one of the foregoing embodiments, in an embodiment of the present application, the transmittance of the second light shielding layer for infrared light is not less than 90%, and the transmittance for visible light is not greater than 5%, so as to further reduce the visible light signal received by the second infrared light detecting unit when the display panel performs infrared identification, thereby further reducing interference of the visible light signal received by the second infrared light detecting unit when the visible light signal performs identification on the received infrared light signal, improving the identification precision of the second infrared light detecting unit, further improving the light sensation identification precision of the display panel, and improving user experience. However, the present application is not limited thereto, and the present application is not limited thereto as the case may be.
It should be noted that, because the wavelength of the infrared light is usually not less than 900nm, and the wavelengths of the visible light and the ultraviolet light are less than 900nm, in a specific embodiment of the present application, the transmittance of the second light shielding layer for the light with the wavelength not less than 900nm is not less than 90%, and the transmittance for the light with the wavelength less than 900nm is not more than 5%, so as to reduce the signal amount of the optical signals received by the second infrared light detection unit except for the infrared light signal, reduce the recognition accuracy of the optical signals received by the second infrared light detection unit except for the infrared light signal when the optical signals received by the second infrared light detection unit detect the infrared light signal received by the second infrared light detection unit, improve the light sensation recognition accuracy of the display panel, and improve the user experience. However, the present application is not limited thereto, and the present application is not limited thereto as the case may be.
On the basis of any of the foregoing embodiments, in one embodiment of the present application, the second light shielding layer may be a light shielding layer made of a plastic (such as Polycarbonate, abbreviated as PC), a acrylic (such as polymethyl methacrylate, poly Methyl Methacrylate, abbreviated as PMMA), silicon, germanium, or an infrared light transmitting film, which is not limited in this application, and is specifically defined as the case may be.
Optionally, in an embodiment of the present application, as shown in fig. 11 and fig. 12, fig. 12 is a cross-sectional view of fig. 11 along the DD' direction, where the first infrared light detecting unit 10 and the second infrared light detecting unit 70 are located on the same layer, so as to reduce the complexity of the process when the infrared light detecting unit is disposed in the display panel, but this is not limited thereto, and the present application is specifically limited thereto as the case may be.
On the basis of any of the above embodiments, in one embodiment of the present application, as shown in fig. 12, a maximum outgoing angle α of the light emitted by the infrared light emitting unit through the first light hole is not less than 45 degrees, so as to ensure that the infrared light emitted by the infrared light emitting unit 40 disposed in the display panel after being reflected by the target object may be received by the plurality of first infrared light detecting units 10 located in the non-display area of the display panel.
On the basis of any of the above embodiments, in one embodiment of the present application, as shown in fig. 13 and 14, fig. 14 is a section of the display panel shown in fig. 13 along EE', and in this embodiment, the display panel further includes: a plurality of display units 90 located in a second region 120 in the display area 100 within the display panel to ensure a display function of the display panel.
On the basis of the above embodiment, in one embodiment of the present application, as further shown in fig. 14, the display panel further includes: the third light shielding layer 11 located in the second area 120 in the display area of the display panel covers the gap between the adjacent display units 90 in the direction perpendicular to the plane of the display panel, so as to avoid the crosstalk of light rays of the adjacent display units 90.
On the basis of the above embodiments, in one embodiment of the present application, as further shown in fig. 13 and 14, the display panel further includes: the plurality of third infrared light detecting units 12 are located in the second region 120 in the display area 100 within the display panel to increase the area of the infrared light sensing region in the display panel.
Optionally, in an embodiment of the present application, as shown in fig. 14, the third light shielding layer 11 completely covers the plurality of third infrared light detection units, and the transmittance of the third light shielding layer 11 for infrared light is greater than the transmittance of the third light shielding layer for visible light, so that when the display panel performs infrared identification, the visible light signal received by the third infrared light detection unit 12 is reduced, and then interference of the visible light signal received by the third infrared light detection unit 12 when the visible light signal identifies the received infrared light signal is reduced, so that the identification precision of the third infrared light detection unit 12 is improved, and finally the light sensation identification precision of the display panel is improved, and the user experience is improved.
Specifically, on the basis of the foregoing embodiments, in one embodiment of the present application, the third infrared light detection unit is an infrared light detection sensor, but the present application is not limited thereto, and in other embodiments of the present application, the third infrared light detection unit may also be other elements that can detect infrared light, where appropriate.
Optionally, on the basis of any one of the foregoing embodiments, in an embodiment of the present application, the transmittance of the third light shielding layer for infrared light is not less than 90%, and the transmittance for visible light is not greater than 5%, so as to further reduce the visible light signal received by the third infrared light detecting unit when the display panel performs infrared identification, thereby further reducing interference of the visible light signal received by the third infrared light detecting unit when the visible light signal identifies the received infrared light signal, improving the identification precision of the third infrared light detecting unit, further improving the light sensation identification precision of the display panel, and improving the user experience. However, the present application is not limited thereto, and the present application is not limited thereto as the case may be.
It should be noted that, because the wavelength of the infrared light is generally not less than 900nm, in a specific embodiment of the present application, the transmittance of the third light shielding layer for the light with the wavelength not less than 900nm is not less than 90%, and the transmittance for the light with the wavelength less than 900nm is not more than 5%, so as to reduce the signal amount of other optical signals except for the infrared light signal in the optical signals received by the third infrared light detecting unit, reduce the recognition precision of the optical signals except for the infrared light signal in the optical signals received by the third infrared light detecting unit when the optical signals received by the third infrared light detecting unit detect the infrared light signal received by the third infrared light detecting unit, improve the light sensing recognition precision of the display panel, and improve the user experience. However, the present application is not limited thereto, and the present application is not limited thereto as the case may be.
On the basis of any one of the above embodiments, in one embodiment of the present application, the third infrared light detection unit is located at the same layer as the first infrared light detection unit, so as to reduce the complexity of the process of providing the third infrared light detection unit in the display panel.
Alternatively, in one embodiment of the present application, as shown in fig. 14, the third infrared light detecting unit 12 and the display unit 90 are located on the same layer, so that the thickness of the display panel is not increased on the basis of adding the infrared light detecting unit to the display panel, but the present application is not limited thereto, as the case may be.
On the basis of any of the foregoing embodiments, in one embodiment of the present application, the third light shielding layer may be a light shielding layer made of a plastic (such as Polycarbonate, abbreviated as PC), a acrylic (such as polymethyl methacrylate, poly Methyl Methacrylate, abbreviated as PMMA), silicon, germanium, or an infrared light transmitting film, which is not limited in this application, and is specifically defined as the case may be.
On the basis of any of the above embodiments, in one embodiment of the present application, the materials of the first light shielding layer, the second light shielding layer and the third light shielding layer are the same, so that the fabrication of the first light shielding layer, the second light shielding layer and the third light shielding layer is completed simultaneously in the same process, thereby simplifying the fabrication process of the display panel, but the present application is not limited thereto, and the present application is specifically limited thereto as the case may be.
On the basis of any of the above embodiments, in one embodiment of the present application, as shown in fig. 15, the display panel further includes: the color resistance layer 13 is located in the display area of the display panel, and in the direction perpendicular to the plane of the display panel, the color resistance layer 13 completely covers the plurality of display units 90, so that the light emitted by the plurality of display units 90 is emitted out of the display panel after passing through the color resistance layer 13. It should be noted that, in this embodiment of the present application, the color resist layer includes color resists of multiple colors, so that light rays emitted by the multiple display units pass through the color resist layer 13 to form light rays of multiple colors, so that the display panel may display color pictures. Specifically, in one embodiment of the present application, as further shown in fig. 15, the color resist layer 13 includes a red color resist unit R, a green color resist unit G, and a blue color resist unit B, but the present application is not limited thereto, and the present application is specifically limited thereto as the case may be.
Optionally, in an embodiment of the present application, as shown in fig. 16, in a direction perpendicular to a plane where the display panel is located, the color blocking layer 13 and the plurality of third infrared light detection units 90 do not overlap, so that the infrared light incident into the display panel may be directly received by the third infrared light detection units 90 without passing through the color blocking layer 13, thereby avoiding the color blocking layer 13 from absorbing the infrared light incident into the display panel, affecting the infrared light sensing amount of the third infrared light detection units 90, improving the light sensing precision of the third infrared light detection units 90, and further improving the user experience.
On the basis of the above-described embodiments, in one embodiment of the present application, the color resist layer covers only the display unit in a direction perpendicular to the plane in which the array substrate is located, as shown in fig. 17, and in this embodiment, the gap between the color resist layer 13 and the adjacent display unit 90 does not overlap.
Optionally, on the basis of the foregoing embodiment, in one embodiment of the present application, as shown in fig. 18, the display panel further includes: and a third light shielding layer 11, wherein the third light shielding layer 11 covers at least part of the area of the gap between the adjacent display units 90 in the direction perpendicular to the plane of the array substrate, so as to reduce the light crosstalk phenomenon of the adjacent display units 90.
On the basis of the above embodiment, in one embodiment of the present application, the transmittance of the third light shielding layer for infrared light is greater than the transmittance of the third light shielding layer for visible light, in this embodiment, as shown in fig. 19, in a direction perpendicular to the plane where the array substrate is located, the third light shielding layer 11 extends to cover the plurality of third infrared light detection units 12, so that the light rays received by the third infrared light detection units 12 all pass through the third light shielding layer 11, and further, the specific gravity of the visible light signal in the light signals received by the third infrared light detection units 12 is reduced, so as to reduce the interference of the visible light signals received by the third infrared light detection units 12 when identifying the received infrared light signals, improve the identification precision of the third infrared light detection units 12, and finally improve the light sensation identification precision of the display panel, and improve the user experience.
On the basis of any one of the above embodiments, in one embodiment of the present application, as shown in fig. 20, the display panel further includes: the color resist layer 13 is located on the polarizer 14 on the side facing away from the display unit 90, the protective cover plate 16 is located on the side facing away from the color resist layer 13, and the adhesive layer 15 connects the polarizer 14 and the protective cover plate 16, optionally, the protective cover plate is a glass cover plate, and the adhesive layer is an optical adhesive layer, but the application is not limited thereto, and the application is specifically defined according to the situation.
In addition, the embodiment of the application further provides a display device, as shown in fig. 21, including: the display panel 300, the display panel 300 is the display panel provided in any one of the above embodiments. Optionally, in an embodiment of the present application, the display panel is a liquid crystal display panel, and in an embodiment of the present application, as further shown in fig. 21, the display device further includes: the backlight module 400 is located on the non-display side of the display panel 300, and provides backlight for the display panel 300, but the application is not limited thereto, and in other embodiments of the application, the display panel may be an OLED display panel or other types of display panels, as the case may be.
It can be seen that, in summary, the display panel and the display device including the display panel provided in this embodiment are in the display panel sets up infrared light detection units such as first infrared light detection unit, second infrared light detection unit and/or third infrared light detection unit in the display panel, still set up the shading layers such as first shading layer, second shading layer and third shading layer rather than corresponding, just the transmissivity of shading layers such as first shading layer, second shading layer and third shading layer is greater than its transmissivity to the visible light, thereby reduces when the display panel carries out infrared discernment, the proportion that the visible light signal accounts for in the light signal that the infrared light detection unit received, and then reduces the interference when the visible light signal that the infrared light detection unit received discerns its received infrared light signal, improves the recognition precision of infrared light detection unit, finally improves the light sense discernment precision of display panel, improves user experience.
In the present description, each part is described in a progressive manner, and each part is mainly described as different from other parts, and identical and similar parts between the parts are mutually referred.
The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the application. Thus, the present application is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims (13)
1. A display panel, comprising:
a plurality of first infrared light detection units positioned in a non-display area in the display panel;
the first shading layer is positioned in the non-display area in the display panel, and completely covers the plurality of first infrared light detection units and gaps between the adjacent first infrared light detection units in the direction perpendicular to the plane of the display panel;
the display panel comprises a plurality of first infrared light detection units, a plurality of second infrared light detection units and a display unit, wherein the first infrared light detection units are positioned in a first area of the display panel, the first area of the display panel is provided with a first light transmission hole and a second light transmission hole, and the plurality of second infrared light detection units are positioned between the first light transmission hole and the second light transmission hole in a plane where the display panel is positioned;
a second light shielding layer located in the first region of the display panel, the second light shielding layer completely covering the plurality of second infrared light detection units in a direction perpendicular to a plane in which the display panel is located;
the first shading layer has a transmittance for infrared light larger than a transmittance for visible light; the second light shielding layer has a transmittance for infrared light greater than a transmittance for visible light.
2. The display panel according to claim 1, wherein the first light shielding layer has a transmittance of not less than 90% for light having a wavelength of not less than 900nm and a transmittance of not more than 5% for light having a wavelength of less than 900 nm.
3. The display panel of claim 1, further comprising:
the infrared light emitting unit is positioned in a first area in the display panel, and infrared light emitted by the infrared light emitting unit is emitted out of the display panel through the first light holes;
the image acquisition unit is positioned in the first area in the display panel, and acquires images outside the display panel through the second light holes.
4. The display panel according to claim 3, wherein a maximum exit angle of the light emitted from the infrared light emitting unit through the first light transmitting hole is not less than 45 degrees.
5. The display panel of any one of claims 1-4, further comprising:
a plurality of display units located in a second region in the display area within the display panel;
and the third shading layer is positioned in the second area of the display area in the display panel, and covers the gap between the adjacent display units in the direction perpendicular to the plane of the display panel.
6. The display panel of claim 5, further comprising:
and the third shading layers are positioned in the second area of the display area in the display panel and have a transmittance to infrared light larger than a transmittance to visible light.
7. The display panel of claim 6, wherein the third infrared light detection unit is located on the same layer as the display unit.
8. The display panel according to claim 5, wherein the first light shielding layer and the third light shielding layer are made of the same material.
9. The display panel of claim 6, further comprising:
and the color resistance layer is positioned in the display area of the display panel and completely covers the display units in the direction perpendicular to the plane of the display panel.
10. The display panel according to claim 9, wherein the color resist layer does not overlap the plurality of third infrared light detection units in a direction perpendicular to a plane in which the display panel is located.
11. The display panel according to claim 10, wherein the third light shielding layer completely covers the plurality of third infrared light detection units in a direction perpendicular to a plane in which the display panel is located.
12. The display panel of claim 1, wherein the material of the first light shielding layer is plastic, alexander, silicon or germanium.
13. A display device, comprising:
a display panel according to any one of claims 1 to 12;
and the backlight module is positioned on the non-display side of the display area of the display panel.
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Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009134041A (en) * | 2007-11-30 | 2009-06-18 | Sony Corp | Display device |
| CN101911159A (en) * | 2008-03-03 | 2010-12-08 | 夏普株式会社 | Display device with light sensors |
| CN108616618A (en) * | 2018-03-30 | 2018-10-02 | 广东欧珀移动通信有限公司 | Electronic device and its manufacturing method |
| CN109116602A (en) * | 2018-08-21 | 2019-01-01 | 惠州市华星光电技术有限公司 | Display panel, display device and mobile terminal |
| CN208386627U (en) * | 2018-06-01 | 2019-01-15 | Oppo广东移动通信有限公司 | Electronic device |
| CN110414467A (en) * | 2019-08-05 | 2019-11-05 | 深圳市隆利科技股份有限公司 | Fingerprint recognition terminal device |
| CN110414466A (en) * | 2019-08-05 | 2019-11-05 | 深圳市隆利科技股份有限公司 | Electronic equipment |
| CN111813275A (en) * | 2020-06-30 | 2020-10-23 | 厦门天马微电子有限公司 | Display screen, control method and control device of display screen and electronic equipment |
| CN112882602A (en) * | 2021-02-09 | 2021-06-01 | 维沃移动通信有限公司 | Display module and electronic equipment |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2020037683A1 (en) * | 2018-08-24 | 2020-02-27 | 深圳市汇顶科技股份有限公司 | Backlight module, below-screen fingerprint recognition method and apparatus, and electronic device |
-
2021
- 2021-06-30 CN CN202110740703.8A patent/CN113467646B/en active Active
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009134041A (en) * | 2007-11-30 | 2009-06-18 | Sony Corp | Display device |
| CN101911159A (en) * | 2008-03-03 | 2010-12-08 | 夏普株式会社 | Display device with light sensors |
| CN108616618A (en) * | 2018-03-30 | 2018-10-02 | 广东欧珀移动通信有限公司 | Electronic device and its manufacturing method |
| CN208386627U (en) * | 2018-06-01 | 2019-01-15 | Oppo广东移动通信有限公司 | Electronic device |
| CN109116602A (en) * | 2018-08-21 | 2019-01-01 | 惠州市华星光电技术有限公司 | Display panel, display device and mobile terminal |
| CN110414467A (en) * | 2019-08-05 | 2019-11-05 | 深圳市隆利科技股份有限公司 | Fingerprint recognition terminal device |
| CN110414466A (en) * | 2019-08-05 | 2019-11-05 | 深圳市隆利科技股份有限公司 | Electronic equipment |
| CN111813275A (en) * | 2020-06-30 | 2020-10-23 | 厦门天马微电子有限公司 | Display screen, control method and control device of display screen and electronic equipment |
| CN112882602A (en) * | 2021-02-09 | 2021-06-01 | 维沃移动通信有限公司 | Display module and electronic equipment |
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