Electronic devices

Abstract

The embodiment of the present application provides an electronic device, including a display device and an image sensor, wherein the display device includes a first display layer, the first display layer is used to filter the incident ambient light to form monochromatic light, and the image sensor is used to receive the monochromatic light. Based on this, in the electronic device of the embodiment of the present application, after the display device and the image sensor cooperate with each other, the first display layer can filter the incident ambient light to form monochromatic light, and after the monochromatic light enters the image sensor, the image sensor can directly receive the monochromatic light and obtain image information, and the image sensor does not need to be provided with an additional layer of color filter film, thereby reducing the stacked structure of the entire electronic device, reducing the diffraction and dispersion phenomena caused by the stacked structure, and improving the imaging effect of the image sensor.

Description

Technical Field

[0001] The present application relates to the field of electronic technology, and in particular to an electronic device. Background Art

[0002] With the development of communication technology, electronic devices such as smart phones are becoming more and more popular. During the use of electronic devices, the electronic devices can use their display devices to display images.

[0003] In order to achieve better display effects and display more content, it is necessary to increase the screen-to-body ratio of electronic devices. In the related art, an image sensor is set on the back of the display device, and light passes through the display device into the image sensor to achieve lighting and imaging of the image sensor. However, in the related art, there are too many layered structures of image sensors and display devices, and the stacked layered structures are prone to diffraction interference, which in turn affects the lighting and imaging of the image sensor. Summary of the invention

[0004] An embodiment of the present application provides an electronic device that can reduce diffraction interference in imaging by an image sensor.

[0005] A display device, the display device comprising a first display layer, the first display layer being used to filter incident ambient light to form monochromatic light; and

[0006] An image sensor is disposed on one side of the display device and is used to receive the monochromatic light to obtain image information.

[0007] The electronic device of the embodiment of the present application includes a display device and an image sensor, the display device includes a first display layer, the first display layer is used to filter the incident ambient light to form monochromatic light, and the image sensor is used to receive the monochromatic light and obtain image information. Based on this, the electronic device of the embodiment of the present application, through the cooperation between the display device and the image sensor, the first display layer can filter the incident ambient light to form monochromatic light, after the monochromatic light enters the image sensor, the image sensor can directly receive the monochromatic light and obtain image information, and the image sensor does not need to be provided with an additional layer of color filter film, thereby reducing the stacked structure of the entire electronic device, reducing the diffraction and dispersion phenomena caused by the stacked structure, and improving the imaging effect of the image sensor. BRIEF DESCRIPTION OF THE DRAWINGS

[0008] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings required for describing the embodiments are briefly introduced below.

[0009] Figure 1 A first structural schematic diagram of an electronic device provided in an embodiment of the present application.

[0010] Figure 2 for Figure 1 A first structural schematic diagram of a display device is shown.

[0011] Figure 3 A first light schematic diagram of an electronic device provided in an embodiment of the present application.

[0012] Figure 4 for Figure 3 A schematic diagram of a first light transmittance of the first display layer is shown.

[0013] Figure 5 for Figure 3 A schematic diagram of the second light transmittance of the first display layer is shown.

[0014] Figure 6 A second light schematic diagram of an electronic device provided in an embodiment of the present application.

[0015] Figure 7 A third light schematic diagram of the electronic device provided in an embodiment of the present application.

[0016] Figure 8 for Figure 1 The electronic device is shown as a first cross-sectional schematic diagram along the line P1 to P2.

[0017] Fig. 9 for Figure 1 The electronic device is shown in a second cross-sectional schematic diagram along the line from P1 to P2.

[0018] Fig.10 for Figure 1 The third cross-sectional schematic diagram of the electronic device is shown along the line from P1 to P2.

[0019] Fig.11 for Figure 1 The fourth cross-sectional schematic diagram of the electronic device is shown along the line from P1 to P2.

[0020] Fig.12 for Figure 1 The fifth cross-sectional schematic diagram of the electronic device is shown along the line from P1 to P2.

[0021] Fig.13 for Figure 1 A second structural schematic diagram of a display device is shown.

[0022] Fig.14 for Figure 1 The sixth cross-sectional schematic diagram of the electronic device is shown along the line from P1 to P2.

[0023] Fig.15 for Figure 1 The seventh cross-sectional schematic diagram of the electronic device is shown along the line from P1 to P2. DETAILED DESCRIPTION

[0024] The technical solutions in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work are within the scope of protection of the present application.

[0025] The embodiment of the present application provides an electronic device. The electronic device may be a mobile phone, a tablet computer or other sports terminal device, or may be a gaming device, an augmented reality (AR) device, a virtual reality (VR) device, a vehicle-mounted computer, a laptop computer, a data storage device, an audio playback device, a video playback device, a wearable device or other device with a display device, wherein the wearable device may be a smart bracelet, smart glasses or the like.

[0026] Please refer to Figure 1 , Figure 1 The first structural diagram of the electronic device provided in the embodiment of the present application is as follows: The electronic device 10 includes a cover plate 100 , a display device 200 , a middle frame 300 , a circuit board 400 , a battery 500 , a back cover 600 and an image sensor 700 .

[0027] The display device 200 may be used to display information such as images, texts, etc. The display device 200 may be an organic light-emitting diode (OLED) display device.

[0028] The cover plate 100 can be mounted on the middle frame 300, and the cover plate 100 covers the display device 200 to protect the display device 200 from being scratched or damaged by water. The cover plate 100 can be a transparent glass cover plate, so that the user can observe the content displayed by the display device 200 through the cover plate 100. The cover plate 100 can be a sapphire glass cover plate.

[0029] The display device 200 may be mounted on the middle frame 300 and connected to the back cover 600 through the middle frame 300 to form a display surface of the electronic device 10. The display device 200 serves as the front shell of the electronic device 10 and forms a housing of the electronic device 10 together with the back cover 600, which is used to accommodate other electronic components of the electronic device 10. For example, the housing may be used to accommodate electronic components such as a processor, a memory, and one or more sensors of the electronic device 10.

[0030] The middle frame 300 may be a thin plate or sheet structure, or a hollow frame structure. The middle frame 300 is used to provide support for the electronic components or electronic devices in the electronic device 10, so as to install the electronic components and electronic devices in the electronic device 10 together. For example, the electronic components such as the image sensor 700, the receiver, the circuit board 400, and the battery 500 in the electronic device 10 can be installed on the middle frame 300 for fixing.

[0031] The circuit board 400 may be mounted on the middle frame 300. The circuit board 400 may be a mainboard of the electronic device 10. The circuit board 400 may be integrated with one, two or more electronic devices such as a microphone, a speaker, a receiver, an earphone interface, a universal serial bus interface (USB interface), a camera assembly, a distance sensor, an environmental sensor, a gyroscope, and a processor.

[0032] The display device 200 may be electrically connected to the circuit board 400 so as to control the display of the display device 200 through the processor on the circuit board 400. An image sensor 700 may be disposed inside the display device 200. The display device 200 and the image sensor 700 may both be electrically connected to the processor, and the image sensor 700 may obtain a signal transmitted through the display device 200 to implement the corresponding function of the image sensor 700.

[0033] Exemplarily, the image sensor 700 may be a front camera module of the electronic device 10. When the processor receives a shooting instruction, the processor controls the front camera module to capture an image through the display device 200. When the processor does not receive a shooting instruction and receives an image display instruction, the processor controls the display device 200 to display the image.

[0034] The battery 500 may be mounted on the middle frame 300. At the same time, the battery 500 is electrically connected to the circuit board 400 so that the battery 500 can power the electronic device 10. A power management circuit may be provided on the circuit board 400. The power management circuit is used to distribute the voltage provided by the battery 500 to various electronic devices in the electronic device 10. The battery 500 may be a rechargeable battery 500. For example, the battery 500 may be a lithium-ion battery 500.

[0035] The back cover 600 may be located on a side of the circuit board 400 away from the display device 200, that is, the back cover 600 is located at the outermost portion of the electronic device 10 and is used to form the outer contour of the electronic device 10. The back cover 600 may be integrally formed. During the molding process of the back cover 600, structures such as a rear camera hole and a fingerprint recognition module mounting hole may be formed on the back cover 600.

[0036] The back cover 600 may be made of metal, such as magnesium alloy, stainless steel and other metals. It should be noted that the material of the back cover 600 of the embodiment of the present application is not limited thereto, and other methods may also be used. For example, the back cover 600 may be made of plastic. For another example, the back cover 600 may be made of ceramic or glass. For another example, the back cover 600 may include a plastic part and a metal part, and the back cover 600 may be a shell structure in which metal and plastic cooperate with each other. Specifically, the metal part may be formed first, such as by injection molding to form a magnesium alloy substrate, and then plastic may be injection molded on the magnesium alloy substrate to form a plastic substrate to form a complete shell structure.

[0037] Please combine Figure 1 And refer to Figure 2 , Figure 2 for Figure 1 A first structural schematic diagram of a display device is shown. The display device 200 may include a first display area 210 and a second display area 220 connected to each other. The cover plate 100 is arranged on the outside of the first display area 210 and the second display area 220, and the cover plate 100 covers the first display area 210 and the second display area 220. The circuit board 400, the battery 500 and other electronic devices of the electronic device 10 may be arranged on the inside of the first display area 210. That is, the circuit board 400, the battery 500 and other electronic devices may be arranged between the first display area 210 and the back cover 600. An image sensor 700 may be arranged on the inside of the first display area 210. The lens of the image sensor 700 may be arranged toward the first display area 210, and the image sensor 700 is used to obtain an external light signal passing through the first display area 210 for imaging.

[0038] The first display area 210 and the second display area 220 can both be used to display text or images. The first display area 210 and the second display area 220 can display the same image together. For example, the second display area 220 displays a part of the preset image, and the first display area 210 displays the remaining part of the preset image. The first display area 210 and the second display area 220 can also display different images. For example, the second display area 220 displays the preset image, and the first display area 210 displays the taskbar image.

[0039] It can be understood that the area of ​​the first display area 210 can be much smaller than the second display area 220, the second display area 220 can be arranged around the first display area 210, and the periphery of the first display area 210 can be adjacent to the second display area 220. The first display area 210 can be located in the middle of the second display area 220. The second display area 220 can also partially surround the first display area 210, and part of the edge of the first display area 210 is adjacent to the second display area 220. The corners of the second display area 220 can also be irregular shapes, for example, with a notch, and the first display area 210 can be located in the notch.

[0040] It is understandable that the positional relationship between the first display area 210 and the second display area 220 is not limited to the above example, and other solutions that allow the display device 200 to include the first display area 210 and the second display area 220 are all within the protection scope of the present application.

[0041] It should be noted that the second display area 220 in the embodiment of the present application can be used as the main display area of ​​the display device 200, the first display area 210 can be used as the auxiliary display area of ​​the display device 200, the second display area 220 can be an active drive (AMOLED) display area, and the first display area 210 can be an active drive (AMOLED) display area or a passive drive (PMOLED) display area. Although the display effect of PMOLED is lower than that of AMOLED, because the area of ​​the first display area 210 is very small, the displayed content is also very small, and the first display area 210 is located at the edge of the display device 200, the displayed content is less important, so the first display area 210 can use PMOLED. The passively driven first display area 210 only needs one thin film transistor (TFT) to drive, and the number of opaque thin film transistors is very small, which can greatly improve the light transmittance of the first display area 210.

[0042] It should be understood that, in the description of this application, terms such as "first", "second", etc. are only used to distinguish similar objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features.

[0043] Please refer to Figure 3 , Figure 3 A schematic diagram of a first type of light for an electronic device provided in an embodiment of the present application. The first display area 210 of the display device in the embodiment of the present application may include a first display layer 211, and the first display layer 211 may filter the ambient light I0. Different areas of the first display layer 211 may have different transmittances to incident ambient light of different wavelengths, so that the first display layer 211 can decompose the ambient light into monochromatic light of different wavelengths, such as I1, I2, and I3, to filter the ambient light. After the first display layer 211 filters the ambient light, the image sensor 700 may be disposed on one side of the display device, for example, facing the first display area 210 and the first display layer 211, and the image sensor 700 may receive the monochromatic light filtered by the first display area 210, and obtain image information based on the monochrome.

[0044] like Figure 3As shown, the first display layer 211 can decompose the ambient light I0 into R, G, and B three-color monochromatic ambient light of the first band-red light band (R light band), the second band-green light band (G light band) monochromatic light I2, and the third band-blue light band (B light band) monochromatic light I3. Among them, the red light band monochromatic light I1 can be between 600 nanometers and 750 nanometers, the green light band monochromatic light I2 can be between 500 nanometers and 570 nanometers, and the blue light band monochromatic light I3 can be between 420 nanometers and 470 nanometers.

[0045] Please refer to Figure 4 , Figure 4 for Figure 3 Schematic diagram of the first light transmittance of the first display layer shown in FIG. Figure 4 In the figure, curve S1 may represent the transmittance curve of the first area in the first display layer 211 ; curve S2 may represent the transmittance curve of the second area in the first display layer 211 ; curve S3 may represent the transmittance curve of the third area in the first display layer 211 .

[0046] It can be seen from the curve S1 that the first area in the first display layer 211 has a higher transmittance to light in the red light band and a very low transmittance to light in the green light band and the blue light band, so that the area can allow the monochromatic light I1 in the red light band to pass through.

[0047] It can be seen from the curve S2 that the second area in the first display layer 211 has a higher transmittance to light in the green light band and a very low transmittance to light in the red and blue light bands, so that the area can allow monochromatic light I2 in the green light band to pass through.

[0048] It can be seen from the curve S3 that the third area in the first display layer 211 can have a higher transmittance for light in the blue light band and a very low transmittance for light in the green light band and the red light band, so that the area can allow the monochromatic light I3 in the blue light band to pass through. Furthermore, after the color filtering of the first display area 210, the ambient light can be decomposed into three-color ambient light of R, G, and B.

[0049] It is understandable that a certain area of ​​the first display layer 211 may have different light transmittances for light within the same wavelength band. Figure 4 In the embodiment, the transmittance of the first display layer 211 is a continuously changing curve in the range of 600 nanometers to 750 nanometers, or in the range of 500 nanometers to 570 nanometers, or in the range of 420 nanometers to 470 nanometers.

[0050] It is understandable that the first display layer 211 may also have the same light transmittance for light in the same wavelength band. Figure 5 , Figure 5 for Figure 3 The second transmittance diagram of the first display layer is shown. Curve S4 can represent the transmittance curve of the first area in the first display layer 211; curve S5 can represent the transmittance curve of the second area in the first display layer 211; curve S6 can represent the transmittance curve of the third area in the first display layer 211.

[0051] exist Figure 5 In the embodiment, the transmittance of the first display layer 211 in the range of 600 nanometers to 750 nanometers, or in the range of 500 nanometers to 570 nanometers, or in the range of 420 nanometers to 470 nanometers can be approximately a straight line. In addition, the transmittance of the first area of ​​the first display layer 211 to the monochromatic light I1 in the red light band is approximately 1, the transmittance of the second area in the first display layer 211 to the monochromatic light I2 in the green light band can also be approximately 1, and the transmittance of the third area in the first display layer 211 to the monochromatic light I3 in the blue light band can also be approximately 1. At this time, the light intensity of the three-color ambient light after passing through the first display area 210 is greater, and the light intensity of the three-color ambient light collected by the image sensor 700 is also greater.

[0052] The image sensor 700 may include at least a lens, a light sensor, a digital-to-analog conversion device, and a digital processing chip. The lens may be composed of multiple lenses, and the lens may collect the three-color ambient light after being filtered by the first display area 210. The light sensor is a semiconductor chip, and its surface contains hundreds of thousands to millions of photodiodes. When the photodiodes are irradiated with light, they can generate electric charges. The light sensor can receive the three-color ambient light after filtering, and convert it into different electrical signals under the irradiation of the three-color ambient light. The digital-to-analog conversion device can convert the electrical signal into a digital image signal. The digital processing chip can process the digital image signal and obtain the final image information.

[0053] It can be understood that after the light sensor collects the three-color ambient light after color filtering, the digital processing chip can obtain the final image information after white balance, demosaicing, noise reduction, color gamut conversion, gamma correction, compression and other processes.

[0054] In the electronic device 10 of the embodiment of the present application, the first display layer can filter the incident ambient light to form monochromatic light through the cooperation of the display device 200 and the image sensor 700. After the monochromatic light enters the image sensor, the image sensor can directly receive the monochromatic light and obtain image information. The image sensor does not need to be additionally provided with a layer of color filter film. Therefore, the stacked structure of the entire electronic device can be reduced, the diffraction and dispersion phenomena caused by the stacked structure can be weakened, and the imaging effect of the image sensor can be improved.

[0055] Among them, please refer to Figure 6 , Figure 6 A second light schematic diagram of an electronic device provided in an embodiment of the present application. In the display device 200 in the embodiment of the present application, a first pixel 201, a second pixel 202, and a third pixel 203 may be provided in the first display layer 211. The first pixel 201, the second pixel 202, and the third pixel 203 may also emit light by themselves under the action of electric current. The first pixel 201 may emit light of a first color, the second pixel 202 may emit light of a second color, and the third pixel 203 may emit light of a third color. The first color, the second color, and the third color may be different from each other.

[0056] It is understandable that the first pixel 201, the second pixel 202 and the third pixel 203 can be made of different luminescent materials, so that the first pixel 201, the second pixel 202 and the third pixel 203 have different light-transmitting bands. For example, the first pixel 201 can have a first light-transmitting band, and the first pixel can filter the incident ambient light under the action of the first light-transmitting band to form a monochromatic light of the first color; the second pixel 202 can have a second light-transmitting band, and the second pixel can filter the incident ambient light under the action of the second light-transmitting band to form a monochromatic light of the second color; the third pixel 203 can have a third light-transmitting band, and the third pixel can filter the incident ambient light under the action of the third light-transmitting band to form a monochromatic light of the third color. Among them, the first light-transmitting band, the second light-transmitting band and the third light-transmitting band can be different from each other, and the first color, the second color and the third color can also be different from each other. The first pixel 201, the second pixel 202 and the third pixel 203 can form filters of different bands to achieve color filtering of ambient light.

[0057] It can be understood that the first light-transmitting band can be a red light band, in which case the first pixel 201 (R pixel) can emit red light and transmit the monochromatic ambient light I1 in the red light band. The second light-transmitting band can be a green light band, in which case the second pixel 202 (G pixel) can emit green light and transmit the monochromatic ambient light I2 in the green light band. The third light-transmitting band can be a blue light band, in which case the third pixel 203 (B pixel) can emit blue light and transmit the monochromatic ambient light I3 in the blue light band.

[0058] In the display device 200 of the embodiment of the present application, the first pixel 201, the second pixel 202 and the third pixel 203 are multiplexed, which can be used as devices for emitting light from the display device 200 and can also be used as color filter elements of the image sensor 700, thereby reducing the stacked structure of the display device 200.

[0059] It can be understood that the first pixel 201 , the second pixel 202 and the third pixel 203 can be disposed in the same layer in the first display layer, and the first pixel 201 , the second pixel 202 and the third pixel 203 can be periodically arranged in the first display layer.

[0060] It is understandable that the first pixel 201, the second pixel 202, and the third pixel 203 can be closely arranged in the first display layer. In this case, there is no pixel spacing region in the first display layer, or the area of ​​the pixel spacing region is much smaller than the area of ​​the pixel. In this case, the first pixel 201, the second pixel 202, and the third pixel 203 can filter the vast majority of ambient light entering the first display layer to form monochromatic light, so that the monochromatic light after filtering can meet the imaging requirements of the image sensor 700.

[0061] It is understandable that if Figure 6 As shown, the first pixel 201, the second pixel 202 and the third pixel 203 can be arranged in a first display layer at intervals. The interval can refer to the interval between pixels of the same type (for example, the first pixel 201 and the first pixel 201), or the interval between pixels of different types (for example, the first pixel 201 and the second pixel 202, the first pixel 201 and the third pixel 203, the second pixel 202 and the third pixel 203). At this time, the interval area between pixels can form a pixel interval area, and the ambient light will not be filtered into a single color ambient light such as R, G, B when passing through the pixel interval area. At this time, the display device 200 can be provided with a first color separation filter film 230, and the first color separation filter film 230 can be provided in the pixel interval area.

[0062] When the ambient light passes through the first color separation filter film 230, it can be filtered and decomposed into three-color monochrome ambient light of R, G, and B by the first color separation filter film 230. The image sensor 700 receives the three-color monochrome ambient light. On the one hand, it can meet the imaging requirements of the image sensor 700. On the other hand, since the first color separation filter film 230 is only arranged in the pixel spacing area, the stacked diffraction interference caused by it is small, and the impact on the imaging effect of the image sensor 700 is small.

[0063] It is understandable that, since the human eye is more sensitive to light in the green band, the first pixel 201, the second pixel 202 and the third pixel 203 in the above-mentioned first display layer can be arranged in the order of RGGB, for example, a first pixel 201, two second pixels 202 and one third pixel 203 are arranged in a 2×2 matrix to form a pixel group, and then a plurality of such pixel group arrays are arranged in the first display layer.

[0064] Of course, the above are only exemplary solutions for the first pixel 201, the second pixel 202 and the third pixel 203, and the solutions of the present application are not limited thereto. Other solutions that can satisfy the requirement of turning the ambient light green are within the protection scope of the embodiments of the present application.

[0065] Among them, please refer to Figure 7 , Figure 7 A third light schematic diagram of an electronic device provided in an embodiment of the present application. The first display area 210 of the display device 200 can emit monochromatic light, such as white light. Exemplarily, the first display layer 211 can include only one type of pixel, such as a fourth pixel, and the first display layer 211 can emit monochromatic light, such as white light. Among them, the fourth pixel can be made of a special luminescent material, and under the action of an electric current, the fourth pixel can emit monochromatic light, such as white light. At this time, the first display layer 211 can be a white light OLED display layer.

[0066] At the same time, the first display layer 211 may further include a second color separation filter film 240, which may be disposed in the first display area 210, and the second color separation filter film 240 may be disposed on a side of the fourth pixel away from the image sensor 700, that is, the second color separation filter film 240 is disposed on the display side of the first display layer 211. The second color separation filter film 240 may be used to filter the white light emitted by the first display layer 211 and the ambient light I0.

[0067] When the second color separation filter film 240 filters the white light emitted by the first display layer 211, the white light generated by the first display layer 211 can be filtered and decomposed into three-color monochromatic lights of R, G, and B, thereby realizing color display of the display device 200. When the second color separation filter film 240 filters the ambient light I0, the ambient light can also be filtered and decomposed into three-color monochromatic lights of R, G, and B I1, I2, and I3, thereby ensuring the imaging requirements of the image sensor 700.

[0068] Furthermore, in the display device 200 of the embodiment of the present application, the second color separation filter film 240 can filter the white light emitted by the first display layer 211 and the ambient light at the same time, thus achieving multiplexing. It is not necessary to set an additional color filter film in the image sensor 700, which can reduce the stacking structure of the entire electronic device 10. In addition, since the fourth pixel emits white light, in terms of manufacturing process, compared with the R, G, and B pixels of different luminescent materials, a common mask can be used to evaporate the white light luminescent material onto the substrate as a whole, without the need for a precision mask, which can greatly reduce the difficulty of evaporation.

[0069] Please refer again to Figure 7, the display device 200 of the embodiment of the present application may further include a second display layer 221, which may be disposed adjacent to and connected to the first display layer 211. The first display layer 211 and the second display layer 221 may be located on the inner side of the cover plate 100, so that the cover plate 100 may protect the first display layer 211 and the second display layer 221. Moreover, the first display layer 211 and the second display layer 221 may be disposed on the same layer. The so-called same layer arrangement may mean that the outer surface of the first display layer 211 may be in the same plane as the outer surface of the second display layer 221, and the inner surface of the first display layer 211 may be in the same plane as the inner surface of the second display layer 221.

[0070] The first display layer 211 may be disposed in the first display area 210 so that the first display area 210 may display information. The second display layer 221 may also be disposed in the second display area 220 so that the second display area 220 may display information. It is understood that the first display layer 211 and the second display layer may display information separately, or the first display layer 211 and the second display layer 221 may display information together.

[0071] Among them, the first display layer 211 and the second display layer 221 can both be OLED display layers. The OLED display layer may include a stacked glass substrate, an anode layer, a hole transport layer, an organic light-emitting layer, an electron transport layer, a metal cathode and other layered structures. When current passes between the anode layer and the metal cathode layer, the electrons and holes injected by the electrode recombine in the light-emitting layer to form excitons, and the excitons radiate and de-excite to emit photons and generate visible light.

[0072] Since the OLED layer can emit light by itself, the light it emits can be transmitted toward the outside of the display device 200 and absorbed by the human eye. The light it emits can also be transmitted toward the inside of the display device 200. The light transmitted to the inside of the display device 200 is generally called screen leakage. This part of the light is not received by the human eye and affects the brightness of the display device 200. In order to improve the brightness of the display device 200, in the related art, reflective materials such as silver materials are often added to the anode layer. When light passes through the OLED pixel, the screen leakage light of the first display layer 211 and the second display layer 221 can be reflected to the outside of the display device 200 under the reflection effect of the silver material.

[0073] Adding reflective material to the anode layer can improve the brightness of the display device 200, but it will reduce the transmittance of the pixels in the display layer. That is, the transmittance of the light is very low when it passes through the pixel. However, since there is no reflective material in the pixel spacing area, the transmittance of the light is high when it passes through the interval between pixels. In this way, when multiple pixels are periodically spaced, the periodic pixels will form a grating obstacle, so that when the light passes through the display device 200, grating diffraction will be formed, which will seriously affect the lighting and shooting effects of the image sensor 700.

[0074] Therefore, please refer to Figure 8 , Figure 8 for Figure 1 The first cross-sectional view of the electronic device shown is from P1 to P2. In the display device 200 of the embodiment of the present application, the second display layer 221 can be provided with a reflective material in the anode layer to form a reflective layer 222 inside the second display layer 221 to ensure the display brightness of the display device 200.

[0075] It is understandable that the reflective layer 222 may also be disposed on one side of the second display layer 221 , such as the inner side, to ensure the display brightness of the display device 200 .

[0076] The first display layer 211 may not have a reflective material disposed in the anode layer, so that the reflective layer 222 is not formed.

[0077] In order to take into account both the display brightness and the shooting effect of the image sensor 700, the display device 200 of the embodiment of the present application may further include a reflector, which may be disposed between the first display layer 211 and the image sensor 700. The reflector may switch between a first state and a second state. The reflector in the first state may reflect the light emitted by the first display layer 211 and the second display layer 221 to the outside of the display device 200 or be absorbed; the reflector in the second state may allow at least part of the ambient light to pass through the display device 200 and enter the image sensor 700.

[0078] Among them, please refer to Fig. 9 and Fig.10 , Fig. 9 for Figure 1 The second cross-sectional schematic diagram of the electronic device shown is taken along P1 to P2, Fig.10 for Figure 1The third cross-sectional schematic diagram of the electronic device shown is taken along P1 to P2. The reflective member may be an electroreflective layer 250, which may be disposed between the display device 200, for example, the first display layer 211 and the image sensor 700, and the electroreflective layer 250 may be disposed opposite to the first display layer 211 and the first display area 210. Moreover, under the action of electric current, the electroreflective layer 250 may realize a reversible change from a colored state with low light transmittance to a colorless state with high light transmittance.

[0079] For example, Fig. 9 As shown, in the non-powered state, the electroreflective layer 250 of the embodiment of the present application can present a colored first state. In the first state, the electroreflective layer 250 has a low light transmittance, and the light emitted by the first display layer 211 and the second display layer 221 cannot pass through the electroreflective layer 250; and the electroreflective layer 250 can preferably be made of a material with a reflective function, so that in the first state, the electroreflective layer 250 can also reflect the light emitted by the organic light-emitting layer to the outside of the display device 200.

[0080] like Fig.10 As shown, in the powered-on state, the electroreflective layer 250 of the embodiment of the present application can present a transparent second state. In the second state, the electroreflective layer 250 has a high light transmittance, and the ambient light can pass through the electroreflective layer 250 and enter the image sensor 700. Furthermore, in the second state, the electroreflective layer 250 can allow at least part of the ambient light to pass through the display device 200 and enter the image sensor 700.

[0081] The reflective member may also be an electroabsorption layer, which may be disposed between the display device 200, for example, the first display layer 211 and the image sensor 700, and the electroabsorption layer may be disposed directly opposite to the first display layer 211 and the first display area 210. Moreover, under the action of electric current, the electroabsorption layer may also realize a reversible change from a colored state with low light transmittance to a colorless state with high light transmittance.

[0082] For example, when no power is supplied, the electroabsorption layer of the embodiment of the present application may present a colored first state. In the first state, the electroabsorption layer has a low light transmittance, and the light emitted by the first display layer 211 and the second display layer 221 cannot pass through the electroabsorption layer and may be absorbed by the electroabsorption layer.

[0083] When powered on, the electroabsorption layer of the embodiment of the present application can present a transparent second state. In the second state, the electroabsorption layer has a high transmittance, and ambient light can pass through the electroabsorption layer and enter the image sensor 700. Furthermore, in the second state, the electroabsorption layer can allow at least part of the ambient light to pass through the display device 200 and enter the image sensor 700.

[0084] Among them, please refer to Fig.11 and Fig.12 , Fig.11 for Figure 1 The fourth cross-sectional schematic diagram of the electronic device shown is taken along P1 to P2, Fig.12 for Figure 1 The fifth cross-sectional schematic diagram of the electronic device along the line P1 to P2 is shown. The reflective member may also be a reflective element 260, and the electronic device 10 may further include a first driving mechanism 270, and the first driving mechanism 270 may be electrically connected to the reflective element 260, under the action of the first driving mechanism 270, the reflective element 260 may switch between a first state and a second state, the first state being that the reflective element 260 is arranged directly opposite to the first display layer 211, and the second state being that the reflective element 260 is arranged at least partially offset from the first display layer 211.

[0085] like Fig.11 As shown, when the reflective element 260 is in the first state, the reflective surface of the reflective element 260 can be set directly opposite to the light-emitting surface of the first display layer 211, and the projection of the reflective surface of the reflective element 260 on the first display layer 211 can cover the first display layer 211 and the light-emitting surface, so that the reflective element 260 can reflect all the light emitted by the first display layer 211 to the outside of the display device 200.

[0086] like Fig.12 As shown, when the reflective element 260 is in the second state, the reflective surface of the reflective element 260 can be completely staggered or partially staggered with the light-emitting surface of the first display layer 211. The staggered setting may mean that the projection of the reflective element 260 on the first display layer 211 does not intersect with the first display layer 211 at all, and the projection of the reflective surface on the first display layer 211 does not intersect with the projection of the light-emitting surface on the first display layer 211 at all. At this time, the reflective element 260 does not block the first display layer 211 at all, and the light emitted by the first display layer 211 can directly enter the interior of the display device 200 without reflection and be received and detected by the image sensor 700.

[0087] It is understandable that the staggered arrangement may also mean that the projection of the reflective element 260 on the first display layer 211 does not intersect with part of the first display layer 211, and the projection of the reflective surface on the first display layer 211 does not intersect with the projection of the light-emitting surface on the first display layer 211. In this case, the reflective element 260 does not completely block the first display layer 211, and part of the light emitted by the first display layer 211 can directly enter the interior of the display device 200 without being reflected and be received and detected by the sensor.

[0088] Of course, the staggered setting may also refer to a preset angle between the reflective surface of the reflective element 260 and the luminous surface, and the preset angle may be greater than zero degrees and less than three hundred and sixty degrees, so that the reflective surface is not completely opposite to the luminous surface. At this time, part of the light emitted by the first display layer 211 can pass through the reflective element 260 without being reflected, and thus can enter the interior of the display device 200 and be received and detected by the image sensor 700.

[0089] It can be understood that the first driving mechanism 270 can be a motor driving mechanism. Exemplarily, the first driving mechanism 270 can include a motor and a slide rail. The slide rail can be set on one side of the first display layer 211, such as the inner side. The rotating shaft of the motor can be connected to the reflective element 260, and the motor drives the reflective element 260 to slide on the slide rail, so that the reflective element 260 can be set opposite the first display layer 211 and cover the first display area 210, or the reflective element 260 can be offset from the first display layer 211 and away from the first display area 210.

[0090] Exemplarily, the first driving mechanism 270 may also be an electromagnetic driving mechanism. For example, the first driving mechanism 270 may include two magnets, a spring, and an electromagnetic circuit. The two magnets are respectively arranged on the reflective element 260 and the first display layer 211. One end of the spring is connected to the reflective element 260, and the other end of the spring may be fixed to the structure of the second display area 220. When the electromagnetic circuit is turned on, the reflective element 260 and the first display layer 211 are under the action of magnetic attraction. The reflective element 260 is arranged opposite to the first display layer 211 and covers the first display area 210, and the spring is stretched at this time. When the electromagnetic circuit is disconnected, the magnetic attraction between the reflective element 260 and the first display layer 211 disappears, and the reflective element 260 is pulled back to the initial position by the spring, that is, the reflective element 260 is staggered with the first display layer 211 and is away from the first display area 210.

[0091] Of course, the first driving mechanism 270 of the embodiment of the present application is not limited to the above examples, and the first driving mechanism 270 may also be other driving mechanisms, such as a cylinder driving mechanism, a motor gear driving mechanism, a motor belt driving mechanism, etc. Any first driving mechanism 270 that can switch the reflective element 260 between the first state and the second state is within the protection scope of the present application.

[0092] In the electronic device 10 of the embodiment of the present application, the reflector can switch between a first state and a second state. When the reflector is in the first state, the reflector can completely block the first display layer 211, and the reflector can completely reflect the light emitted by the first display layer 211 to the outside of the display device 200 or completely absorb it, thereby ensuring the brightness of the display device 200 and reducing reflection; when the reflector is in the second state, the reflector cannot completely block the first display layer 211, and the light can directly enter the display device 200 without passing through the reflector. Therefore, on the one hand, the light transmittance of the display device 200 can be improved, and on the other hand, the multiple first pixels 201 of the first display layer 211 will not form a diffraction grating, and thus will not affect the shooting effect of the image sensor 700.

[0093] The first display layer 211 may be used to transmit light signals, for example, ambient light signals, infrared light signals, light signals reflected by obstacles, etc. The light transmittance of the first display layer 211 may be greater than the light transmittance of the second display layer 221, so that the light transmittance of the first display area 210 is greater than the light transmittance of the second display area 220. When the image sensor 700 of the electronic device 10 is disposed on the inner side of the first display layer 211, that is, disposed in the first display area 210, the image sensor 700 may transmit light signals through the first display layer 211 and the first display area 210.

[0094] There are various solutions for achieving that the light transmittance of the first display area 210 is greater than the light transmittance of the second display area 220 .

[0095] For example, the pixel density of the first display layer 211 may be smaller than the pixel density of the second display layer 221, so that the interval area between pixels in the first display layer 211 is larger, thereby increasing the area through which light can pass, thereby achieving that the light transmittance of the first display area 210 is greater than the light transmittance of the second display area 220. In order to further improve the light transmittance of the first display area 210, the embodiment of the present application may use a light-transmitting material for the pixels of the first display, such as an indium tin oxide material.

[0096] When the first display layer 211 is not provided with a reflective material, since there is no reflective material to reduce the transmittance, at this time, the first display layer 211 can have a higher transmittance. On this basis, in order to make the first display layer 211 have a better color filtering effect on ambient light, in the embodiment of the present application, the pixel density in the first display layer 211 can be the same as the image density of the second display layer 221. Furthermore, there are more pixels in the first display layer 211, and the arrangement is relatively close. More light is filtered after passing through the pixels of the first display layer 211, and the image sensor 700 can receive more three-color ambient light, which can meet the imaging requirements of the image sensor 700.

[0097] It is understandable that the multiple pixels in the first display layer 211 and the multiple pixels in the second display layer 221 can be arranged in an array. The arrangement of the pixels in the first display area 210 can be one of the standard RGB arrangement, Pentile arrangement or Delta arrangement, and the arrangement of the pixels in the second display area 220 can also be one of the standard RGB arrangement, Pentile arrangement or Delta arrangement. It should be noted that the pixels in the first display area 210 can also be arranged in other ways, and the pixels in the second display area 220 can also be arranged in other ways.

[0098] For another example, the first driving unit such as a thin film transistor (TFT) that drives the pixels in the first display layer 211 in the display device 200 to emit light can be set outside the first display area 210. For example, it can be set in the driving layer structure composed of the second driving unit that drives the pixels in the second display area 220 in the display device 200, or it can be set on the side or periphery of the display device 200, or it can be set in the non-display area of ​​the display device 200. For another example, a double-layer driving layer structure is set in the display device 200, and the driving unit such as a TFT that drives the pixels in the first display layer 211 is set in the driving layer structure corresponding to the second display area 220 by using a via.

[0099] It is understandable that the driving unit can adopt one of the driving circuits such as 2T1C, 5T1C, and 7T1C. For example, the first driving unit can adopt one of 2T1C, 5T1C, and 7T1C, and the second driving unit can adopt one of 2T1C, 5T1C, and 7T1C. Wherein, T represents a thin film transistor, and C represents a capacitor. In order to improve the transmittance of the first display area 210, the first driving unit arranged in the first display area 210 can be a driving circuit that is simpler than the main driving unit of the second display area 220, for example, the number of thin film transistors included in the first driving unit is less than the number of thin film transistors in the second driving unit. For example, the first driving unit can adopt one of 2T1C and 5T1C, and the second driving unit can adopt 7T1C. The number of opaque thin film transistors in the first driving unit is smaller, and the opaque part in the first display area 210 is smaller, which can improve the transmittance of the first display area 210.

[0100] For another example, the first display area 210 and the second display area 220 may have the same physical structure of pixels, but multiple pixels in the first display area 210 may be connected in parallel to a signal line to form a pixel set, which may reduce the number of signal lines connecting the pixels to the signal lines, thereby improving the light transmittance of the first display area 210.

[0101] It can be understood that the above is only an example of a solution for achieving a light transmittance of the first display area 210 greater than the light transmittance of the second display area 220, and the solution of the embodiment of the present application is not limited to this. Other solutions that can achieve a light transmittance of the first display area 210 greater than the light transmittance of the second display area 220 are within the protection scope of the present application.

[0102] Among them, please refer to Fig.13 , Fig.13 for Figure 1 The second structural schematic diagram of the display device shown in FIG. The display device 200 may further include a third display area 280, and the third display area 280 may also be a display area on the display device 200. The cover plate 100 may be located on one side of the display surface of the third display area 280 and cover the third display area 280. The third display area 280 may also be used to display information such as images and texts.

[0103] The third display area 280 may be located between the second display area 220 and the first display area 210, that is, one side of the third display area 280 is connected to the periphery of the second display area 220, and the other side of the third display area 280 is connected to the periphery of the first display area 210. The second display area 220, the third display area 280 and the first display area 210 form a whole, and the three are used together to display information such as images and texts.

[0104] The display device 200 may further include a plurality of third driving units and a plurality of pixels located in the third display area 280 , each third driving unit being electrically connected to at least one pixel for driving at least one pixel in the third display area 280 so that the third display area 280 displays information.

[0105] The first driving unit may be arranged in the third display area 280. The third driving units arranged in the third display area 280 may all be arranged in a portion away from the first display area 210, thereby leaving a portion of space free, and the plurality of first driving units may all be arranged in a portion of space adjacent to the first display area 210. It should be noted that the plurality of first driving units may also be partially arranged in the first display area 210 and partially arranged in the third display area 280 or the second display area 220.

[0106] The display device 200 of the embodiment of the present application sets multiple first driving units in the third display area 280. On the one hand, it can reduce the circuit diffraction effect of the first display area 210 and improve the transmittance of the first display area 210. On the other hand, it can also reduce the distance between the first driving unit and the pixel wiring in the first display area 210, so that the internal layout of the display device 200 is more reasonable.

[0107] Among them, please refer to Fig.14 and Fig.15 , Fig.14 for Figure 1 The sixth cross-sectional schematic diagram of the electronic device along P1 to P2 is shown, Fig.15 for Figure 1 The seventh cross-sectional schematic diagram of the electronic device along P1 to P2 is shown. The image sensor 700 of the electronic device 10 can be arranged on the inner side of the first display layer 211 together with the first driving mechanism 270, the reflective element 260, etc. The electronic device 10 can also include a second driving mechanism (not shown), which can be connected to the image sensor 700, and the second driving mechanism is used to drive the image sensor 700 to move so that the image sensor 700 switches between the third state and the fourth state. The distance between the image sensor 700 in the third state and the first display layer 211 is less than the distance between the image sensor 700 in the fourth state and the first display layer 211.

[0108] like Fig.14 As shown, in the third state, the image sensor 700 is adjacent to the first display layer 211. The distance between the image sensor 700 in the third state and the first display layer 211 is a first distance L1, which may be the distance between the signal transmission surface of the image sensor 700 and the lower surface of the first display layer 211.

[0109] like Fig.15 As shown, in the fourth state, the image sensor 700 is located on the inner side of the reflective element 260, and there is a certain distance between the image sensor 700 and the first display layer 211. The distance between the image sensor 700 in the fourth state and the first display layer 211 is the second distance L2, and the second distance L2 may also be the distance between the signal transmission surface of the image sensor 700 and the lower surface of the first display layer 211.

[0110] The first distance L1 is smaller than the second distance L2.

[0111] It can be understood that the image sensor 700 in the third state is closer to the first display layer 211, the field of view (FOV) of the image sensor 700 is larger, the image sensor 700 can receive more signals, and the image sensor 700 can capture images with higher image quality requirements.

[0112] It can be understood that the image sensor 700 in the fourth state is far away from the first display layer 211. At this time, the image sensor 700 can capture images with less high image quality requirements, or the image sensor 700 can perform a snapshot operation. At this time, the image sensor 700 does not need to move and spend time to meet the timeliness of the snapshot.

[0113] In the electronic device 10 of the embodiment of the present application, when the viewing angle of the image sensor 700 is constant, since the first distance L1 is smaller than the second distance L2, the area of ​​the first display area 210 required by the image sensor 700 in the third state may also be smaller than the area of ​​the first display area 210 required by the image sensor 700 in the fourth state. Furthermore, when the image sensor 700 of the embodiment of the present application transmits a signal, the area of ​​the first display area 210 adjacent to the first display layer 211 can be smaller, so as to reduce the influence of the area display effect of the first display area 210.

[0114] It can be understood that the second driving mechanism can also include a motor, a connecting rod and a slide rail. The slide rail can be set in the first display area 210, and sliders can be set on both sides of the image sensor 700, and the sliders are embedded in the slide rail; one end of the connecting rod is connected to the rotating shaft of the motor, and the other end of the connecting rod is connected to the image sensor 700. Then, the motor drives the connecting rod and the image sensor 700 to move, and the image sensor 700 can move back and forth along the slide rail in the first display area 210, and the image sensor 700 can switch between the third state and the fourth state.

[0115] Of course, the second driving mechanism of the embodiment of the present application is not limited to the above examples, and the second driving mechanism may also be other driving mechanisms, such as a cylinder driving mechanism, a motor gear driving mechanism, a motor belt driving mechanism, etc. Any second driving mechanism that can make the image sensor 700 move in the inner and outer directions relative to the first display area 210 and switch the image sensor 700 between the third state and the fourth state is within the protection scope of the present application.

[0116] The image sensor 700 may also include a signal transmission surface, which can move inward and outward to change the distance between the signal transmission surface and the first display layer 211, thereby switching the image sensor 700 between the third state and the fourth state.

[0117] For example, when the image sensor 700 is an image sensor 700 , the image sensor 700 can perform a focusing operation, that is, the lens of the image sensor 700 can move up and down relative to the base of the image sensor 700 to adjust the focal length of the image sensor 700 .

[0118] The electronic device provided by the embodiment of the present application is described in detail above. The principle and implementation method of the present application are described in detail using specific examples herein, and the description of the above embodiments is only used to help understand the present application. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation method and application scope. In summary, the content of this specification should not be understood as limiting the present application.

Claims

1. An electronic device, characterized in that: include: A display device, the display device comprising a first display layer, the first display layer being used to filter incident ambient light to form monochromatic light; wherein the first display layer comprises a first pixel, a second pixel and a third pixel, the first pixel having a first light-transmitting band, the first pixel being used to filter the incident ambient light into monochromatic light of a first color under the action of the first light-transmitting band; the second pixel having a second light-transmitting band, the second pixel being used to filter the incident ambient light into monochromatic light of a second color under the action of the second light-transmitting band, the third pixel having a third light-transmitting band, the third pixel being used to filter the incident ambient light into monochromatic light of a third color under the action of the third light-transmitting band; and An image sensor is disposed on one side of the display device and is used to receive the monochromatic light to obtain image information.

2. The electronic device according to claim 1, characterized in that: The first pixel, the second pixel and the third pixel are arranged at intervals to form a pixel interval area, and the display device further includes: A first color separation filter film is disposed in the pixel spacing area and is also used for filtering incident ambient light to form monochromatic light.

3. The electronic device according to claim 1, characterized in that: The first display layer further includes: a fourth pixel, the fourth pixel being configured to emit white light; and A second color separation filter film is disposed on a side of the fourth pixel away from the image sensor, and is used for filtering incident white light emitted by the fourth pixel to form monochromatic light.

4. The electronic device according to claim 1, characterized in that: The display device further includes: a first display area, wherein the first display layer is disposed in the first display area; a second display area, the second display area being connected to the first display area; a second display layer, the second display layer being disposed in the second display area, the second display layer being connected to the first display layer; and A reflective layer, wherein the reflective layer is arranged in the second display area, and the reflective layer is arranged on one side of the second display layer or inside one side of the second display layer.

5. The electronic device according to claim 4, characterized in that: Also includes: The electroreflective layer is disposed between the first display layer and the image sensor, and the electroreflective layer is disposed opposite to the first display layer.

6. The electronic device according to claim 4, characterized in that: Also includes: The electroabsorption layer is disposed between the first display layer and the image sensor, and the electroabsorption layer is disposed opposite to the first display layer.

7. The electronic device according to claim 4, characterized in that: Also includes: A reflective element, wherein the reflective element is arranged between the first display layer and the image sensor, and the reflective element is used to switch between a first state and a second state, wherein the first state is that the reflective element is arranged directly opposite to the first display layer, and the second state is that the reflective element is arranged at least partially offset from the first display layer.

8. The electronic device according to any one of claims 4 to 7, characterized in that: The light transmittance of the second display area is lower than the light transmittance of the first display area.

9. The electronic device according to any one of claims 4 to 7, characterized in that: The first display layer and the second display layer have the same pixel density.

Images