CN217133503U - Display panel and electronic device - Google Patents

Abstract

The application discloses display panel and electronic equipment, display panel includes: the array substrate is arranged on the substrate in a stacked mode; the backlight source comprises a visible light emitting unit and an infrared light emitting unit, the visible light emitting unit is used for emitting visible light, and the infrared light emitting unit is used for emitting infrared light; the double-pass filter comprises a plurality of filter units, and one filter unit is used for transmitting the infrared light and the monochromatic light in the visible light. This application can pass through backlight transmission visible light and infrared light, and the bi-pass filter sees through infrared light and visible light, and wherein the infrared light can carry out the light filling for leading infrared camera to effectively avoided electronic equipment's the problem that the definition of imaging receives the restriction of ambient light.

Description

Display panel and electronic device

Technical Field

The application belongs to the technical field of electronic equipment, and particularly relates to a display panel and electronic equipment.

Background

With the widespread use of smart terminals, infrared cameras are introduced into electronic devices with display panels, such as mobile phones, tablets, and smart watches. The infrared camera has wide application in the aspects of face recognition, identity authentication and the like.

In the related art, at night or in other environments with darker light, images collected by the infrared camera are not clear, so that the recognition function is not accurate, and the application of the infrared camera is limited.

Disclosure of Invention

The application aims at providing a display panel and electronic equipment, and the technical problem that images collected by an infrared camera are not clear at least in a dark environment is solved.

In order to solve the technical problem, the present application is implemented as follows:

in a first aspect, an embodiment of the present application provides a display panel, including:

the array substrate is provided with a backlight source, an array substrate, a liquid crystal layer and a double-pass filter;

the backlight source comprises a visible light emitting unit and an infrared light emitting unit, the visible light emitting unit is used for emitting visible light, and the infrared light emitting unit is used for emitting infrared light;

the double-pass filter comprises a plurality of filter units, and one filter unit is used for transmitting the infrared light and the monochromatic light in the visible light.

In a second aspect, an embodiment of the present application provides an electronic device, including:

the display panel according to the first aspect;

the camera shooting module is used for receiving reflected light of target infrared light reflected back through an external object, and the target infrared light is infrared light emitted by the infrared light emitting unit in the display panel.

In a third aspect, an embodiment of the present application further provides an electronic device, including:

the display panel according to the first aspect;

and the encoder is connected with the infrared light-emitting unit, and the infrared light-emitting unit is used for transmitting the encoding signal provided by the encoder.

In an embodiment of the present application, the display panel may include a backlight source, an array substrate, a liquid crystal layer, and a dual-pass filter, the backlight source may include a visible light emitting unit for emitting visible light and an infrared light emitting unit for emitting infrared light, and the dual-pass filter may include a plurality of filter units, and one filter unit is configured to transmit monochromatic light of the infrared light and the visible light. Like this, display panel's backlight can launch visible light and infrared light, and the bi-pass filter can see through infrared light and visible light, and wherein the infrared light can carry out the light filling for infrared camera for under the darker environment of light, the image or the video that infrared camera gathered are also clear, thereby effectively avoided electronic equipment's infrared imaging definition to receive the problem of ambient light restriction.

Additional aspects and advantages of the present application will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the present application.

Drawings

The above and/or additional aspects and advantages of the present application will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic structural diagram of a display panel according to an embodiment of the present disclosure;

fig. 2 is a schematic diagram illustrating an operation principle of a display panel according to an embodiment of the present application;

fig. 3 is a second schematic structural diagram of a display panel according to an embodiment of the present disclosure;

FIG. 4 is a schematic structural diagram of a double-pass filter in an embodiment of the present application;

FIG. 5 is a schematic diagram illustrating the operation of the filter unit in the embodiment of the present application;

FIG. 6a is a schematic structural diagram of an arrangement of filter units in an embodiment of the present application;

FIG. 6b is a second schematic diagram illustrating an arrangement of filter units in the embodiment of the present application;

FIG. 6c is a third schematic view illustrating an arrangement of filter units according to an embodiment of the present invention;

fig. 7 is a schematic structural diagram of an electronic device according to an embodiment of the present application;

fig. 8 is a schematic diagram of an operating principle of an electronic device according to an embodiment of the present application.

Reference numerals:

1. an electronic device; 2. an external object;

10. a display panel; 20. a camera module;

11. a backlight source; 111. a visible light emitting unit; 1110. visible light; 1111. a red visible light; 1112. green visible light; 1113. blue visible light; 112. an infrared light emitting unit; 1120. infrared light;

12. an array substrate; 13. a liquid crystal layer;

14. a double pass filter; 141. a substrate; 142. a light filtering unit; 1421. a color block; 1422. an infrared coating layer; 1401. a red filter unit; 1402. a green filter unit; 1403. a blue filter unit; 143. an isolation section;

15. a first polarizer; 16. a second polarizer.

Detailed Description

Reference will now be made in detail to embodiments of the present application, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative and are only for the purpose of explaining the present application and are not to be construed as limiting the present application. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

The features of the terms first and second in the description and in the claims of the present application may explicitly or implicitly include one or more of those features. In the description of the present application, "a plurality" means two or more unless otherwise specified. In addition, "and/or" in the specification and claims means at least one of connected objects, a character "/" generally means that a preceding and succeeding related objects are in an "or" relationship.

In the description of the present application, it is to be understood that the terms "upper", "lower", "left", "right", "top", "bottom", "front", "back", "inner", "outer", "front" and "side" and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience in describing the present application and simplifying the description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the term "connected" is to be interpreted broadly, e.g. as a fixed connection, a detachable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.

With the widespread use of smart terminals, electronic devices with display panels, such as mobile phones, tablets, watches, and the like, are widely used, and users can use the electronic devices to perform face recognition, identity authentication, and the like. In the related art, the infrared camera has a wide application prospect. However, when the infrared camera collects an image or a video, the imaging definition of the infrared camera is affected by ambient light, and face recognition or identity authentication fails due to unclear imaging in a dark or night scene. Therefore, the infrared camera needs to be supplemented with light, and the requirements of the user in different scenes can be met.

In the related art, a light supplement light source can be arranged on the front side of the electronic device (i.e., the surface of the electronic device toward which the display panel faces), but when the light supplement light source is turned on, light is directly emitted to both eyes of a user, which affects the sight of the user, so that video communication cannot be normally performed. In view of the above situation, the inventor considers that an infrared light source can be used for light supplement, because infrared light emitted by the infrared light source is invisible light, the situation that the sight of a user is affected during light supplement can be effectively avoided, but the inventor also finds that the installation position of the infrared light source inevitably occupies a part of area if the infrared light source is directly added to the front side of the electronic device aiming at the situation that the current electronic device pursues an extremely favorable screen occupation ratio, so that the screen occupation ratio of the electronic device can be reduced.

To the above problem, an embodiment of the present application provides a display panel and an electronic device that can realize infrared light supplement to satisfy the light supplement demand of infrared camera.

The following describes a display panel provided in an embodiment of the present application with reference to fig. 1 to 6 c.

Referring to fig. 1, an embodiment of the present disclosure provides a display panel 10, where the display panel 10 may include a backlight 11, an array substrate 12, a liquid crystal layer 13, and a double-pass filter 14, which are stacked together; wherein the backlight 11 may include a visible light emitting unit 111 and an infrared light emitting unit 112, the visible light emitting unit 111 is configured to emit visible light 1110, and the infrared light emitting unit 112 is configured to emit infrared light 1120; the double pass filter 14 may include a plurality of filter units 142, and one filter unit 142 is used for transmitting one monochromatic light of the infrared light 1120 and the visible light 1110.

As shown in fig. 1 and fig. 2, an embodiment of the present invention provides a Display panel 10, where the Display panel 10 may be a Liquid Crystal Display (LCD), and the Display principle of the LCD is that a component of light blocked by a Liquid Crystal layer 13 achieves control of brightness and darkness, and a light source is needed to see an image on the Display panel 10, so that a backlight 11 is disposed on a bottom layer of the Display panel 10. Illustratively, the backlight 11 may include a visible light emitting unit 111 for emitting visible light 1110 and an infrared light emitting unit 112 for emitting infrared light 1120, wherein the visible light emitting unit 111 may emit white visible light 1110 to provide a basic light source for displaying the display panel 10, and the infrared light emitting unit 112 is responsible for providing a light source for supplementing infrared light.

The liquid crystal layer 13 includes a plurality of liquid crystal molecules, and the twist angle of the liquid crystal molecules may be controlled by a Thin Film Transistor (TFT) circuit on the array substrate 12, and the corresponding liquid crystal molecules are driven to deflect by adjusting the output voltage of the TFT circuit. The deflection of the liquid crystal molecules can change the direction of the light, so that the brightness of the light with the same direction can be controlled, and the brightness of the light passing through the double-pass filter 14 can be changed.

The liquid crystal layer 13 itself has no color, and various colors can be generated by the double pass filter 14. For example, the double pass filter 14 may include a plurality of filter units 142, and one filter unit 142 is used for transmitting one monochromatic light of the infrared light 1120 and the visible light 1110. The visible light emitting unit 111 may emit white visible light 1110, the infrared light emitting unit 112 may emit infrared light 1120, and after the white visible light 1110 and the infrared light 1120 pass through color filter units of various colors, monochromatic light and the infrared light 1120 of colors corresponding to the color filter units 142 may be transmitted.

In the embodiment of the present application, the display panel 10 may include a backlight 11, an array substrate 12, a liquid crystal layer 13, and a double pass filter 14, which are stacked, the backlight 11 may include a visible light emitting unit 111 for emitting visible light 1110 and an infrared light emitting unit 112 for emitting infrared light 1120, and the double pass filter 14 may include a plurality of filter units 142, and one filter unit 142 is used for transmitting monochromatic light of the infrared light 1120 and the visible light 1110. Like this, the backlight 11 of display panel 10 can launch visible light 1110 and infrared light 1120, and bi-pass filter 11 can see through infrared light 1120 and visible light 1110, and wherein infrared light 1120 can carry out the light filling for infrared camera for under the darker environment of light, the image or the video that infrared camera gathered are also clear, thereby effectively avoided electronic equipment's the problem that the definition of imaging is restricted by ambient light. The infrared camera is a front infrared camera and is arranged below the screen of the electronic equipment or is embedded in the screen of the electronic equipment. When the electronic equipment needs to carry out face detection or identity authentication, the infrared camera is opened, and the backlight source of the display panel emits infrared light to supplement light for the front infrared camera. Therefore, the imaging definition of the front infrared camera is improved, and the accuracy of face recognition or identity authentication is improved. In addition, since the infrared light 1120 is invisible light, the trouble that a user needs to look directly at light can be avoided when the infrared camera is used for light supplement, the comfort level of the user is improved, and meanwhile, the infrared light emitting unit 112 is used as a part of the display panel 10, so that extra installation space does not need to be occupied, and further the screen occupation ratio of the electronic device cannot be reduced.

Referring to fig. 3, in some embodiments, the display panel 10 may further include a first polarizer 15 and a second polarizer; the first polarizer 15 is disposed on a side of the array substrate 12 away from the liquid crystal layer 13, and the second polarizer is disposed on a side of the double-pass filter 14 away from the liquid crystal layer 13.

As shown in fig. 2 and fig. 3, a first polarizer 15 may be disposed on a side of the array substrate 12 facing away from the liquid crystal layer 13, that is, visible light 1110 and infrared light 1120 emitted from the backlight 11 pass through the first polarizer 15 and then reach the liquid crystal layer 13.

It is understood that the light emitted from the backlight 11 is not uniform in directivity and is radial, and the light is twisted by the liquid crystal molecules, and the display panel 10 may display a white and a blank piece or a greenish-greenish patch instead of a normal image. At this time, the first polarizer 15 may align the direction of the light emitted from the backlight 11 to be uniform and then send the uniform light to the liquid crystal layer 13.

It will also be appreciated that the direction of the light passing through the first polarizer 15 can be kept uniform, but the light becomes non-uniform after being twisted by the liquid crystal molecules, and if the direction of the light is not adjusted again, the display panel 10 still displays a white blank or a greenish color block. Therefore, a second polarizer may also be provided on the side of the double-pass filter 14 facing away from the liquid crystal layer 13. The polarization direction of the second polarizer may be orthogonal to the polarization direction of the first polarizer 15, the second polarizer may deflect the light twisted by the liquid crystal molecules again, and the brightness of the light passing through the second polarizer is different, so the display panel 10 may display a picture with alternating bright and dark, and the light deflected by the second polarizer passes through the double-pass filter 14, so the display panel 10 may display a color image.

In this embodiment, the first polarizer 15 and the second polarizer may be used to adjust the direction of the light passing through the liquid crystal layer 13, so as to ensure the display effect of the display panel 10.

Referring to FIG. 4, in some embodiments, the double pass filter 14 may include a substrate 141 and a plurality of filter units 142; the plurality of filter units 142 are disposed on the substrate 141, wherein the filter units 142 include a color resistance block 1421 and an infrared coating layer 1422, the infrared coating layer 1422 is disposed on a side of the color resistance block 1421 away from the substrate 141, and the infrared coating layer 1422 is used for making the color resistance block 1421 transmit the infrared light 1120.

As shown in fig. 4, the double pass filter 14 may exemplarily include a substrate 141, and a plurality of filter units 142 disposed on a surface of the substrate 141 on a side close to the liquid crystal layer 13. Each filter unit 142 may include a color resistance block 1421 disposed on the substrate 141, and an infrared plating layer 1422 disposed on a side of the color resistance block 1421 facing away from the substrate 141. The color block 1421 may be a color film with various colors, and after the white visible light 1110 passes through the color block 1421, monochromatic light of a color corresponding to the color block 1421 may be transmitted. The infrared coating layer 1422 may be an ion coating, and may be configured to make the color block 1421 transmit the infrared light 1120, that is, under the action of the infrared coating layer 1422, the infrared light 1120 may also be transmitted after passing through the color block 1421, so that each filtering unit 142 may transmit a monochromatic light of the infrared light 1120 and the visible light 1110.

In this embodiment of the application, the filtering unit 142 of the double-pass filter 14 includes the color-resisting block 1421 and the infrared coating layer 1422, so that the filtering unit 142 can both transmit monochromatic light and can also transmit the infrared light 1120, the display panel 10 can perform infrared light supplement for the infrared camera through the infrared light 1120, so that under the environment with darker light, the image or video collected by the infrared camera is also clear, thereby improving the accuracy of functions such as face recognition and identity authentication under the dark environment.

Referring to fig. 4, in some embodiments, an isolation portion 143 may be disposed between two adjacent filter units 142, and the isolation portion 143 may effectively prevent light leakage and color mixing between the filter units 142, increase color contrast, greatly reduce light damage caused by interference between light rays of different colors, and present more stable and clear image quality to ensure the display effect of the display panel 10. The spacer 143 may be a resin type black resist film such as a metal oxide film or carbon black, and may have a light shielding effect, and is not particularly limited.

Referring to fig. 4 to 6c, in some embodiments, the plurality of filter units 142 includes a red filter unit 1401, a green filter unit 1402, and a blue filter unit 1403, where the red filter unit 1401 is configured to transmit red visible light 1111 and infrared light 1120, the green filter unit 1402 is configured to transmit green visible light 1112 and infrared light 1120, and the blue filter unit 1403 is configured to transmit blue visible light 1113 and infrared light 1120. The red filter unit 1401, the green filter unit 1402, and the blue filter unit 1403 are arranged in a straight bar, mosaic, or triangular manner.

As shown in fig. 4 and 5, the plurality of filter units 142 may include a red filter unit 1401, a green filter unit 1402, and a blue filter unit 1403, wherein the red filter unit 1401 may include a red color block 1421 and an infrared coating layer 1422, and after the white visible light 1110 and the infrared light 1120 pass through the red filter unit 1401, the red visible light 1111 and the infrared light 1120 may be transmitted; the green filter unit 1402 may include a green color block 1421 and an infrared coating layer 1422, and after the white visible light 1110 and the infrared light 1120 pass through the green filter unit 1402, the green visible light 1112 and the infrared light 1120 may be transmitted out; the blue filter 1403 may include a blue color block 1421 and an infrared coating 1422, and after the white visible light 1110 and the infrared light 1120 pass through the blue filter 1403, the blue visible light 1113 and the infrared light 1120 may be transmitted out.

As shown in fig. 6a to 6c, the red filter unit 1401, the green filter unit 1402 and the blue filter unit 1403 may be arranged in a straight bar type (as shown in fig. 6a), a mosaic type (as shown in fig. 6b) or a triangle type (as shown in fig. 6c), and an appropriate arrangement may be selected according to different applications and display effects. For example, if the display content of the display panel 10 is composed of a stack of frames with different sizes, such as the display panel 10 of a notebook computer, a straight bar arrangement may be used, and the straight bar arrangement may make the edges of the frames look straighter, thereby avoiding the phenomenon that a straight line looks rough or jagged. In the case of the display panel 10 for displaying characters such as a color television, since the lines of the characters are not straight and the outlines thereof are mostly irregular curves, a mosaic type or a triangle type arrangement mode can be selected.

In some examples, the double pass filter 14 may further include a high-brightness filter unit 142 such as a white filter unit 142 or a yellow filter unit 142 according to actual requirements. In addition, the arrangement of the filter units 142 may be a square arrangement, in addition to the mosaic 1410, the straight bar 1420 or the triangle 1430, that is, four filter units 142 are used as a pixel, and the four filter units 142 are combined to form a square. The arrangement and arrangement of the filter units 142 in the double-pass filter 14 can be adaptively adjusted according to actual situations, and are not particularly limited herein.

In the embodiment of the present application, the plurality of filter units 142 may include a red filter unit 1401, a green filter unit 1402 and a blue filter unit 1403, and the arrangement manner of the red filter unit 1401, the green filter unit 1402 and the blue filter unit 1403 may be a straight bar type, a mosaic type or a triangle type, and may be specifically selected according to actual requirements, so that the applicability of the display panel 10 is wider.

In some embodiments, double pass filter 14 transmits infrared light 1120 at a wavelength of 845nm to 945 nm. For example, an infrared emission tube with a suitable wavelength model may be selected as the infrared light emitting unit 112 according to practical situations, and the wavelength of the infrared light 1120 transmitted by the dual-pass filter 14 may match with the wavelength model of the infrared emission tube, and is not particularly limited herein.

Optionally, the wavelength of the infrared light 1120 transmitted by the dual-pass filter 14 may be set to 935nm to 945nm, and correspondingly, the infrared light emitting unit 112 may be an infrared emitting tube with a wavelength of 940nm, and since the infrared emitting tube with a wavelength of 940nm does not have a red explosion phenomenon, the infrared light 1120 may be prevented from affecting the image of the display panel 10, thereby effectively ensuring the display effect of the display panel 10.

Alternatively, in order to increase the sensitivity, the wavelength at which the double-pass filter 14 transmits the infrared light 1120 may also be set to 845nm to 855 nm.

Other configurations of the display panel 10 according to the embodiment of the present application, such as the array substrate 12 and the liquid crystal layer 13, and the like, and operations thereof are known to those of ordinary skill in the art and will not be described in detail herein.

It can be understood that, an Organic Light-Emitting Diode (OLED) display panel for performing infrared Light supplement for an infrared camera may also be provided in the embodiments of the present application, and since the OLED display panel does not need a filter structure, the OLED display panel may directly emit monochromatic visible Light through a Light-Emitting pixel layer. At this time, the light emitting pixel layer may include a plurality of light emitting pixels, and each of the light emitting pixels may include red, green, blue, and infrared sub-pixels alternately arranged, wherein the red sub-pixel is configured to emit red visible light, the green sub-pixel is configured to emit green visible light, the blue sub-pixel is configured to emit blue visible light, and the infrared sub-pixel is configured to emit infrared light.

The light emitting pixel of the OLED display panel may also include a first sub-pixel, a second sub-pixel, and a third sub-pixel, which are alternately disposed, wherein the first sub-pixel is configured to emit red visible light and infrared light, the second sub-pixel is configured to emit green visible light and infrared light, and the third sub-pixel is configured to emit blue visible light and infrared light.

In the above example, the light-emitting pixel layer of the OLED display panel can emit various monochromatic visible light and infrared light, and the infrared light can be used for performing infrared light supplement for the infrared camera, so that in a dark environment, an image or a video acquired by the infrared camera is also clear, and the problem that the imaging definition of the electronic device is limited by ambient light is effectively avoided.

Referring to fig. 7, an electronic device 1 is further provided in an embodiment of the present invention, where the electronic device 1 may include the display panel 10 and the camera module 20 as described above, and the camera module 20 is configured to receive a reflected light beam reflected by the external object 2 through a target infrared light, where the target infrared light is an infrared light 1120 emitted by the infrared light emitting unit 112 in the display panel 10.

As shown in fig. 7 and 8, the electronic device 1 may include a display panel 10 and a camera module 20, the backlight 11 in the display panel 10 may include an infrared light emitting unit 112, the infrared light emitting unit 112 emits infrared light 1120, the infrared light 1120 is emitted from the display panel 10 after passing through the double-pass filter 14, and irradiates on the external object 2, and then the external object 2 reflects the infrared light 1120, and the reflected light may be received by the camera module 20, so as to achieve the purpose of supplementing infrared light.

In this application embodiment, display panel 10 has the function of carrying out the infrared light filling for module 20 of making a video recording can catch the image of the external object 2 after the infrared light filling, thereby can shoot clear image under the darker environment of light, and the user is autodyned or video communication is not under the restriction of illumination condition, and then can satisfy user's diversified demand.

In some embodiments, the camera module 20 may be an infrared camera module.

In the embodiment of the present application, in an infrared light supplement scene, wavelengths of the visible light 1110 and the infrared light 1120 are different, which may cause different positions of a focal plane of an image, thereby causing a phenomenon of virtual focus and a blurred image. By selecting an infrared camera module and adopting special optical materials and optical design methods in the related technology, focal plane offset of the visible light 1110 and the infrared light 1120 can be eliminated, so that light rays from the visible light 1110 to the infrared light 1120 can be imaged on the same focal plane, and the definition of an image is ensured. Meanwhile, the lens of the infrared camera module usually adopts a multilayer coating technology, and can also inhibit the occurrence of ghost images and flash under the backlight condition to the maximum extent, so that a high-quality picture with higher contrast can be obtained under the adverse conditions of backlight and the like.

In some embodiments, the electronic device 1 may further include a light sensor and a controller, the controller may be connected to the infrared light-emitting unit 112 and the light sensor, and the controller is configured to control the infrared light-emitting unit 112 to emit the infrared light 1120 if the light sensor detects that the intensity of the ambient light is lower than a preset threshold.

In this embodiment of the application, the electronic device 1 may further include a light sensor and a controller, where the light sensor may be configured to detect ambient light intensity, and when the ambient light intensity is lower than a preset threshold, it may be considered that the current environment is in a darker environment, and the preset threshold may be set according to an actual situation, and is not specifically limited herein.

The controller may be connected to the infrared light emitting unit 112 and the light sensor, and when the light sensor detects that the current environment is darker, the controller may control the infrared light emitting unit 112 to emit infrared light 1120 for infrared light supplement.

In other words, when the current environment is bright, it may be considered that light supplement is not needed, at this time, the infrared light emitting unit 112 may not emit light, and when the current environment is dark and light supplement is needed, the controller may control the infrared light emitting unit 112 to emit the infrared light 1120, so that power consumption may be effectively saved.

In some embodiments, the controller may be further connected to the camera module 20, and the controller is further configured to control the infrared light emitting unit 112 to emit the infrared light 1120 when the camera module 20 is in an on state.

In this embodiment, the controller may be further connected to the camera module 20, and in a case that the camera module 20 is in an on state, the controller may control the infrared light emitting unit 112 to emit the infrared light 1120. If be in darker environment at present, but the module 20 of making a video recording is off state, then can regard this moment also not to need carry out the light filling, and infrared luminescence unit 112 can not give out light this moment, is being in darker environment at present, and when the module 20 of making a video recording was on state, can regard this moment to need carry out the light filling, and the controller can control infrared luminescence unit 112 and send infrared light 1120, like this, can further practice thrift the consumption.

Embodiments of the present application further provide an electronic device, which may include the display panel and the encoder as mentioned above, and the encoder may be connected to the infrared light-emitting unit, and the infrared light-emitting unit is configured to emit an encoded signal provided by the encoder.

In this embodiment, the electronic device may include a display panel and an encoder, the backlight source of the display panel may include an infrared light-emitting unit, and the encoder may be connected to the infrared light-emitting unit, so that the electronic device may implement an infrared remote control function through the display panel.

The infrared light-emitting unit can emit the coded signal after receiving the coded signal, so that the coded signal can be received by electric appliances such as smart homes, and further control over the electric appliances such as the smart homes can be achieved.

In the description herein, reference to the description of the terms "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the application. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present application have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the application, the scope of which is defined by the claims and their equivalents.

Claims (11)

1. A display panel, comprising:

the array substrate is arranged on the substrate in a stacked mode;

the backlight source comprises a visible light emitting unit and an infrared light emitting unit, the visible light emitting unit is used for emitting visible light, and the infrared light emitting unit is used for emitting infrared light;

the double-pass filter comprises a plurality of filter units, and one filter unit is used for transmitting the infrared light and the monochromatic light in the visible light.

2. The display panel according to claim 1, wherein the double pass filter further comprises:

the infrared coating layer is used for enabling the color resistance blocks to penetrate through infrared light.

3. The display panel according to claim 2, wherein a spacer is disposed between two adjacent filter units.

4. The display panel according to claim 1, wherein the plurality of filter units include a red filter unit for transmitting red visible light and the infrared light, a green filter unit for transmitting green visible light and the infrared light, and a blue filter unit for transmitting blue visible light and the infrared light;

the red filter unit, the green filter unit and the blue filter unit are arranged in a straight bar type, a mosaic type or a triangular type.

5. The display panel according to claim 1, further comprising:

the first polarizer is arranged on one side of the array substrate, which is far away from the liquid crystal layer;

and the second polaroid is arranged on one side of the double-pass filter departing from the liquid crystal layer.

6. The display panel according to any one of claims 1 to 5, wherein the wavelength of the infrared light transmitted by the double-pass filter is 845nm to 945 nm.

7. An electronic device, comprising:

the display panel according to any one of claims 1 to 6;

the camera shooting module is used for receiving reflected light of target infrared light reflected back through an external object, and the target infrared light is infrared light emitted by the infrared light emitting unit in the display panel.

8. The electronic device of claim 7, further comprising:

a light sensor;

the controller, with infrared light-emitting unit with light sensor connects, the controller is used for being in under the condition that light sensor detects ambient light intensity and is less than the default threshold value, control infrared light-emitting unit sends the infrared light.

9. The electronic device according to claim 8, wherein the controller is connected to the camera module, and the controller is further configured to control the infrared light emitting unit to emit the infrared light when the camera module is in an on state.

10. The electronic device according to any one of claims 7 to 9, wherein the camera module is an infrared camera module.

11. An electronic device, comprising:

the display panel according to any one of claims 1 to 6;

and the encoder is connected with the infrared light-emitting unit, and the infrared light-emitting unit is used for transmitting the encoding signal provided by the encoder.

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