CN114373785A

CN114373785A - Display device and electronic apparatus

Info

Publication number: CN114373785A
Application number: CN202011098216.8A
Authority: CN
Inventors: 李志林
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-10-14
Filing date: 2020-10-14
Publication date: 2022-04-19

Abstract

The embodiment of the application provides a display device and electronic equipment, wherein the display device comprises a first display area; the first display area is arranged around the second display area, the second display area is adjacent to the first display area, and the pixel density of the second display area is smaller than that of the first display area; a third display area, the second display area surrounding the third display area, the third display area and the second display area being adjacent to each other, the pixel density of the third display area being less than the pixel density of the second display area; and the first signal line is electrically connected with the pixels of the first display area, and one end of the first signal line surrounding the third display area passes through the second display area. And the arrangement of signal lines in the first display area is facilitated.

Description

Display device and electronic apparatus

Technical Field

The present disclosure relates to electronic technologies, and particularly to a display device and an electronic apparatus.

Background

With the development of communication technology, electronic devices such as smart phones are becoming more and more popular. In the using process of the electronic equipment, the electronic equipment can display the picture by using the display screen of the electronic equipment. For better display effect and user experience, the size of the display screen is larger and larger, but the display screen of the electronic device is difficult to hold after exceeding a certain size, so that the screen occupation ratio of the display screen is more and more important to be improved.

The signal line in the display screen is vertical parallel arrangement generally, and among the correlation technique, usually with the light transmission district setting at display device's edge, the signal line in normal display district like this when laying to light transmission district edge, directly cut off can, can not influence laying of signal line in the normal display district, nevertheless, if when setting up the light transmission district in display device's middle part, can influence laying of signal line in the normal display district.

Disclosure of Invention

The embodiment of the application provides a display device and electronic equipment, which are convenient for arrangement of signal lines in a first display area.

An embodiment of the present application provides a display device, including:

a first display area;

the first display area is arranged around the second display area, the second display area is adjacent to the first display area, and the pixel density of the second display area is smaller than that of the first display area;

a third display area, the second display area surrounding the third display area, the third display area and the second display area being adjacent to each other, the pixel density of the third display area being less than the pixel density of the second display area; and

and the first signal line is electrically connected with the pixels of the first display area, and one end of the first signal line surrounding the third display area passes through the second display area.

An embodiment of the present application further provides an electronic device, including:

the display device is the display device; and

the image sensor is arranged on one side of the display device and is opposite to the third display area, and the image sensor is used for receiving light penetrating through the third display area.

In the embodiment of the application, by arranging the second display area, the pixel density of the second display area is smaller than that of the third display area, and the pixel density of the second display area is greater than that of the first display area.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings used in the description of the embodiments will be briefly introduced below.

Fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present application.

Fig. 2 is a schematic view of a first structure of a display device in the electronic device shown in fig. 1.

Fig. 3 is a sectional view of the display device shown in fig. 2 taken along the direction P1-P1.

Fig. 4 is a second structural diagram of the display device in the electronic device shown in fig. 1.

Fig. 5 is a schematic diagram of a third structure of the display device in the electronic apparatus shown in fig. 1.

Fig. 6 is a schematic diagram of a fourth structure of the display device in the electronic apparatus shown in fig. 1.

Fig. 7 is a first distribution pattern of the third pixel shown in fig. 3.

Fig. 8 is a second distribution pattern of the third pixel shown in fig. 3.

Fig. 9 is a first diffraction pattern of the third display region shown in fig. 3.

Fig. 10 is a second diffraction pattern of the third display region shown in fig. 3.

Fig. 11 is a third diffraction pattern of the third display region shown in fig. 3.

Fig. 12 is a partial schematic view of a display device in the electronic device shown in fig. 1.

Fig. 13 is a schematic diagram of a fifth structure of the display device in the electronic apparatus shown in fig. 1.

Fig. 14 is a partial schematic view of the display device shown in fig. 13.

Fig. 15 is a sectional view of the display device shown in fig. 13 taken along the direction P2 to P2.

Fig. 16 is a first cross-sectional view of the electronic device shown in fig. 1 taken along lines M1-M2.

Fig. 17 is a second cross-sectional view of the electronic device shown in fig. 1 taken along lines M1-M2.

Fig. 18 is a third cross-sectional view of the electronic device shown in fig. 1 along lines M1-M2.

Fig. 19 is a fourth cross-sectional view of the electronic device shown in fig. 1 taken along lines M1-M2.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. It is to be understood that the embodiments described are only a few embodiments of the present application and not all embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without inventive step, are within the scope of the present application.

The embodiment of the application provides electronic equipment. The electronic device may be a mobile terminal device such as a mobile phone and a tablet computer, or may be a game device, an Augmented Reality (AR) device, a Virtual Reality (VR) device, an in-vehicle computer, a notebook computer, a data storage device, an audio playing device, a video playing device, a wearable device, and other devices having a display device, where the wearable device may be a smart band, smart glasses, and the like.

Referring to fig. 1, fig. 1 is a schematic structural diagram of an electronic device according to an embodiment of the present disclosure. 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 rear cover 600, and an image sensor 700.

The display device 200 may be used to display information such as images, text, and the like. The display device 200 may be an Organic Light-Emitting Diode (OLED) display device.

The cover plate 100 may 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 may be a transparent glass cover plate 100 so that a user can view contents displayed by the display device 200 through the cover plate 100. The cover plate 100 may be a glass cover plate of sapphire material.

The display device 200 may be mounted on the middle frame 300 and connected to the rear cover 600 through the middle frame 300 to form a display surface of the electronic apparatus 10. The display device 200 serves as a front case of the electronic apparatus 10, and forms a housing of the electronic apparatus 10 together with the rear cover 600 for accommodating other electronic components of the electronic apparatus 10. For example, the housing may be used to house electronics such as a processor, memory, one or more sensors, etc. of the electronic device 10.

The middle frame 300 may have a thin plate-like or sheet-like structure, or may have a hollow frame structure. The middle frame 300 is used for providing a supporting function for the electronic device or the electronic device in the electronic apparatus 10 to mount the electronic element and the electronic device in the electronic apparatus 10 together. For example, electronic components such as the image sensor 700, the receiver, the circuit board 400, and the battery 500 in the electronic device 10 may be mounted on the middle frame 300 to be fixed.

The circuit board 400 may be mounted on the middle frame 300. The circuit board 400 may be a motherboard of the electronic device 10. 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 may be integrated on the circuit board 400.

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. The image sensor 700 may be disposed inside the display device 200. The display device 200 and the image sensor 700 may be electrically connected to a processor, and the image sensor 700 may obtain signals transmitted through the display device 200 to implement corresponding functions of the image sensor 700.

For example, the image sensor 700 may be a front camera module of the electronic device 10, and 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 the photographing instruction and receives the display image instruction, the processor controls the display device 200 to display an image.

The image sensor 700 may include a lens, a color filter, a light sensor, a digital-to-analog converter, and a digital processing chip, and the lens may be composed of a plurality of lenses. The lens may collect ambient light transmitted through the first display region 210. The color filter film can decompose the ambient light into monochromatic light such as red light, blue light, green light and the like. The light sensor is a semiconductor chip, the surface of which comprises hundreds of thousands to millions of photodiodes, the photodiodes can generate electric charges when receiving light irradiation, and the light sensor can receive three-color environment light after color filtering and convert the three-color environment light into different electric signals under the irradiation of the three-color environment light. The digital-to-analog conversion means may 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.

It can be understood that after the light sensor collects the ambient light, the digital processing chip may obtain final image information after white balance, demosaicing, noise reduction, color gamut conversion, gamma correction, compression, and the like.

The battery 500 may be mounted on the middle frame 300. Meanwhile, the battery 500 is electrically connected to the circuit board 400 to enable the battery 500 to power the electronic device 10. The circuit board 400 may be provided thereon with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery 500 to the 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.

The rear cover 600 may be located at a side of the circuit board 400 away from the display device 200, that is, the rear cover 600 is located at an outermost portion of the electronic apparatus 10 and is used to form an outer contour of the electronic apparatus 10. The rear cover 600 may be integrally formed. In the forming process of the rear cover 600, structures such as a rear camera hole and a fingerprint identification module mounting hole can be formed on the rear cover 600.

The rear cover 600 may be made of metal, such as magnesium alloy, stainless steel, etc. It should be noted that the material of the rear cover 600 according to the embodiment of the present application is not limited to this, and other methods may be adopted. For example, the rear cover 600 may be made of plastic. For another example, the rear cover 600 may be made of ceramic or glass. For another example, the rear cover 600 may include a plastic part and a metal part, and the rear cover 600 may be a housing structure in which the metal and the plastic are matched with each other. Specifically, the metal part may be formed first, for example, a magnesium alloy substrate is formed by injection molding, and then plastic is injected on the magnesium alloy substrate to form a plastic substrate, so as to form a complete housing structure.

Referring to fig. 1 and fig. 2 at the same time, fig. 2 is a first structural schematic diagram of a display device in the electronic apparatus shown in fig. 1. The display device 200 includes a first display area 210, a second display area 220, and a third display area 230. The cover 100 is disposed outside the first, second, and

third display regions

210, 220, and 230, and the cover 100 covers the first, second, and

third display regions

210, 220, and 230. The inside of the first display region 210 may be provided with electronic devices such as a circuit board 400, a battery 500, and the like of the electronic apparatus 10. That is, electronic devices such as the circuit board 400, the battery 500, and the like may be disposed between the first display region 210 and the rear cover 600. An image sensor 700 may be disposed inside the third display region 230. The image sensor 700 is disposed opposite to the third display area 230, and the image sensor 700 is configured to acquire an external light signal transmitted through the third display area 230 for imaging.

The first display area 210 is disposed around the second display area 220, the second display area 220 is disposed around the third display area 230, and the first display area 210 and the second display area 220 are adjacent to each other, and the second display area 220 and the third display area 230 are adjacent to each other.

The first display area 210 may be a main display area, the second display area 220 and the third display area 230 may be auxiliary display areas, the first display area 210, the second display area 220 and the third display area 230 may display the same picture or different pictures, for example, the third display area 230 may be used for displaying time, date, etc., and the first display area 210 and the second display area 220 may be used for displaying images.

The area of the first display region 210 may be larger than the area of the second display region 220, and the area of the second display region 220 may also be equal to the area of the first display region 210. The area of the second display region 220 may be larger or smaller than the area of the third display region 230, and the area of the third display region 230 may also be equal to the area of the second display region 220.

The third display area 230 may be located at any position of the display apparatus 200, for example, the third display area 230 may be located at the middle position of the display apparatus 200, and the third display area 230 may also be located at the upper left, upper right, lower left, and lower right positions of the display apparatus 200.

It is to be understood that, in the description of the present application, terms such as "first", "second", and the like are used merely to distinguish similar objects and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.

Referring to FIG. 3, FIG. 3 is a cross-sectional view taken along the line P1-P1 in the display device shown in FIG. 2. The pixel density of the first display region 210 is greater than that of the second display region 220, and the pixel density of the second display region 220 is greater than that of the third display region 230.

The display device 200 further includes a first display layer, a second display layer and a third display layer, the first display layer is adjacent to the second display layer, the third display layer is adjacent to the second display layer, the first display layer is opposite to the first display area 210, the second display layer is opposite to the second display area 220, and the third display layer is opposite to the third display area 230, wherein the first display layer includes a plurality of first pixels 212, the second display layer includes a plurality of second pixels 222, and the third display layer includes a plurality of third pixels 232.

Referring to fig. 4, fig. 4 is a second structural schematic diagram of the display device in the electronic apparatus shown in fig. 1. The display device 200 further includes a first signal line 211, the first signal line 211 is used for electrically connecting to the first pixels 212, and the first signal line 211 is connected to at least one of the first pixels 212.

One end of the first signal line 211 close to the third display region 230 is electrically connected to the first pixel 212 in the first display region 210 through the second display region 220. For example, the first signal line 211 adjacent to the third display region 230 includes a first portion, a second portion, and a third portion, the first portion and the third portion are both located at the first display 210, the second portion is located at the second display region 220, and the first portion of the first signal line 211 is used to connect the first pixels 212, the second portion is not used to connect the first pixels 212, and the third portion is used to connect the first pixels 212.

The number of the first signal lines 211 is plural, such as eight, ten, fourteen, and the like, and the number of the first signal lines 211 can be set according to actual needs.

In the embodiment of the present application, when the third display area 230 is disposed at the edge far away from the display device, because the third display area 230 is not disposed near the edge, the end of the first signal line 211 of the first display area 210 close to the third display area 230 passes through the second display area 220 to be connected to the pixel of the first display area 210, and the first signal line 211 of the first display area 210 can be prevented from being disposed in the third display area 230, which not only can improve the light transmittance of the third display area 230, but also can facilitate the disposition of the first signal line 211 in the first display area 210.

It should be understood that, referring to fig. 5, fig. 5 is a third schematic structural diagram of the display device in the electronic apparatus shown in fig. 1; the second display region 220 includes a first sub-display region 220a and a second sub-display region 220b which are oppositely disposed, and the first sub-display region 220a and the second sub-display region 220b are symmetrically disposed with respect to the third display region, that is, the first sub-display region 220a and the second sub-display region 220b have the same area.

It should be understood that, referring to fig. 6, fig. 6 is a fourth structural diagram of the display device in the electronic apparatus shown in fig. 1; the first sub-display area 220a and the second sub-display area 220b may have different areas, for example, the area of the first sub-display area 220a may be larger than the area of the second sub-display area 220b, and the area of the first sub-display area 220a may also be smaller than the area of the second sub-display area 220 b.

It can be understood that, in order to conveniently arrange a part of the first signal lines 211 of the first display area 210 in the second display area 220, a space needs to be reserved in the second display area 220, which can be specifically implemented by the following method:

the display device 200 further includes a second signal line 221, the second signal line 221 is located in the second display area 220, and the second signal line 221 is connected to the plurality of second pixels 222, so that the number of the second signal lines 221 can be reduced, and more space is reserved in the second display area 220 for a part of the third signal lines 211 to be arranged.

It is understood that, by increasing the size of the second pixel 222, for example, the size of the second pixel 222 is four times larger, the pixel density of the second pixel 222 is reduced to one fourth, the number of pixels is reduced, the number of the second signal lines 221 required for connecting the pixels is reduced, and more space can be reserved in the second display region 220 for a part of the third signal lines 211 to be arranged.

It is understood that the display device 200 further includes a third signal line 231, and the third signal line 231 is used for connecting at least one third pixel 232, wherein the third signal line 231 may be located in the third display region 230, and the third signal line 232 may also be located in the second display region 220.

When the third signal line 231 is located in the third display region 230, the third signal line 231 is made of a transparent material, such as transparent Indium Tin Oxide (ITO).

When the third signal lines 231 are located in the second display region 220, in order to facilitate the arrangement of the third signal lines 231 and a part of the first signal lines 211, the pixel density of the second display region 220 may be the same as that of the third display region 210, or the pixel density of the second display region 220 may be smaller than that of the third display region 210, and since the pixel density of the second display region 220 is smaller than or equal to that of the third display region 230, the number of the second signal lines 221 may be further reduced, so that more space may be reserved in the second display region 220 for the third signal lines 231 and a part of the first signal lines 211.

The first pixel 212, the second pixel 222, and the third pixel 232 may have the same shape and size. It is understood that the size of the first pixel 212, the second pixel 222 and the third pixel 232 may also be different, for example, the size of the first pixel 212 and the second pixel 222 is larger than the size of the third pixel 232, so that the pixel interval between the third pixels 232 can be increased, and the light transmittance of the third display region 230 can be further improved.

It is understood that the shapes of the first pixel 212, the second pixel 222 and the third pixel 232 may be different, for example, the shapes of the first pixel 212 and the second pixel 222 may be square, and the shape of the third pixel 232 may be circular or elliptical.

When the shape of the third pixel 232 may be a circle or an ellipse, the third pixel 232 may block light of the first wavelength, and the diameter of the cross section of the third pixel 232 may be a non-integral multiple of half of the first wavelength.

It is understood that the third pixel 232 may block light within a certain wavelength band, and the light of the first wavelength may be a light within the certain wavelength band. For example, the third pixel 232 may block light of a visible light band (380 nm to 750 nm band), so that the third pixel 232 may block red light of 700 nm, or blue light of 480 nm, or green light of 520 nm. At this time, the cross-sectional diameter of the third pixel 232 may be a non-integral multiple of half of any wavelength in the entire wavelength band, that is, the cross-sectional diameter of the third pixel 232 may avoid an integral multiple of half of any wavelength in the entire wavelength band.

It is understood that a non-integer multiple of half of the first wavelength refers to an integer multiple of the first wavelength for which the diameter of the cross-section of the third pixel 232 is not half, i.e. the diameter D ≠ n · 1/2 · λ (the first wavelength), n being a positive integer.

It is understood that when the cross-section of the third pixel 232 is circular, that is, the third pixel 232 is a spherical pixel, the diameter between any two points passing through the center on the surface of the third pixel 232 may be a non-integer multiple of half of the first wavelength. The center of the third pixel 232 may be a center of a circular cross-section of the third pixel 232.

It is understood that when the cross-section of the third pixel 232 is an ellipse, i.e., the third pixel 232 is an ellipsoid pixel, the diameter between any two points on the surface of the third pixel 232 passing through the center may also be a non-integer multiple of half the first wavelength. The center of the third pixel 232 may be an intersection of an upper major axis and a half axis of the elliptical cross-section of the third pixel 232.

Based on the optical principle, when light outside the display device 200 passes through the third pixel 232, since the transmittance of the third pixel 232 is different from the transmittance of the air and the pixel spacing region, the third pixel 232 is an obstacle relative to the air and the pixel spacing region, and the light deviates from the original straight propagation track when passing through the third pixel 232 of the obstacle, thereby forming a diffraction phenomenon. In the display device 200 of the embodiment of the application, the cross section of the third pixel 232 is a circular or elliptical pixel, and when the third pixel 232 blocks the light with the first wavelength, because the diameter of the cross section of the third pixel 232 is a non-integral multiple of half of the first wavelength, the energy can be more concentrated in the primary diffraction fringes, the energy of each secondary diffraction fringe is lower, and each secondary diffraction fringe is less, so that the diffraction phenomenon can be reduced.

To further mitigate the diffraction interference, please refer to fig. 7, fig. 7 is a first distribution diagram of the third pixel shown in fig. 3. In the display device 200 of the embodiment of the application, each third pixel 232 may include a main body portion 2321 and an edge portion 2322 connected to each other. The cross section of the body 2321 may be circular or elliptical. The rim portion 2322 may be approximately annular in cross-section, which may include an outer contour that surrounds and conforms to the outer peripheral edge of the body portion 2321 and an inner contour that may be a closed circular or elliptical curve; the outer profile may include a plurality of curves of different curvatures that may be interconnected to form a closed curve around the body 2321.

It will be appreciated that a plurality of curves of different curvature may form an irregular closed curve around the body portion 2321. The irregular closed curve can mean that the curve is not a regular polygon such as a regular triangle, a regular quadrangle and the like; the irregular closed curve is not common triangle, square, rectangle or parallelogram; the irregular closed curve is not regular round or oval; the irregular curve is not a curve formed by connecting a plurality of identical arcs.

It is understood that, as shown in fig. 7, the edge portion 2322 formed by a plurality of curves with different curvatures may form a plurality of protrusions, and each protrusion may extend from an outer edge of the main body portion 2321 toward a direction away from the main body portion 2321. At this time, the outer circumference of the third pixel 232 may include a plurality of protrusions.

It is understood that the number of the protrusions may be about 20 to 30, and in this case, the outer periphery of the rim portion 2012 may include 20 to 30 curves connected to each other at the head, and the outer periphery of the third pixel 232 may have an irregular curve.

In the display device 200 of the embodiment of the application, when the third pixel 232 includes the edge portion 2322 formed by the curves with different curvatures, the third pixel 232 is affected by the curves with different curvatures, and when the external light passes through the edge portion 2322 of the third pixel 232, diffraction phenomena formed at different positions on the edge portion 2322 are mutually offset, so that formation of diffraction fringes can be reduced, and diffraction interference can be reduced.

When the outer contour of the edge portion 2322 includes a plurality of curved lines, the curvatures of any two adjacent curved lines may be different. Furthermore, when the light passes through any two adjacent curves, the diffraction phenomena are more easily cancelled, so that the probability of diffraction when the light passes through the whole edge portion 2322 is greatly reduced, and the diffraction phenomena can be greatly reduced.

Referring to fig. 8, fig. 8 is a second distribution diagram of the third pixel shown in fig. 3. In the display device 200 of the embodiment of the application, the third display area 230 may include a plurality of third pixels 232 arranged at intervals, that is, the plurality of third pixels 232 are arranged at intervals in the third display layer. Here, the diameter d of the cross section of the third pixel 232 may not be one half of the distance a between two adjacent third pixels 232, that is, the diameter of the cross section of the third pixel 232 may be greater than or less than one half of the distance a between two adjacent third pixels 232.

It is understood that the diameter of the cross section of the third pixel 232 can be referred to the above description, and is not described herein.

It is understood that, as shown in fig. 8, the distance a between two adjacent third pixels 232 may be a distance between two points located on the edges of the two third pixels 232, wherein a connecting line of the two points on the edges of the two third pixels 232 passes through the centers of the two third pixels 232, respectively.

It is understood that the two third pixels 232 of the embodiment of the present application may be both elliptical pixels, both circular pixels, and both circular pixels and elliptical pixels. Of course, the two third pixels 232 in the embodiment of the present application may also have other shapes, and the embodiment of the present application does not limit the specific shape thereof.

It can be understood that the refractive index of the interpixel region of the third display region 230 is assumed to be n₁Thickness d₁The refractive index of the third pixel 232 is n₂Thickness d₂The distance between two adjacent third pixels 232 is a, the diameter of the third pixels 232 is d, and the distance between the light source and the third display region 230 is n₀Then, the transmittance function of the light passing through the third display region 230 can be expressed as:

different diffraction patterns can be obtained by changing the values of a and d, respectively. For example, please refer to fig. 9 to 11, wherein fig. 9 is a first diffraction pattern of the third display area of the embodiment of the present application, fig. 10 is a second diffraction pattern of the third display area of the embodiment of the present application, and fig. 11 is a third diffraction pattern of the third display area of the embodiment of the present application. In fig. 9 to 11, the diffraction intensity envelope of the third display region 230 is shown on the left, and the diffraction order distribution of the third display region 230 is shown on the right.

In fig. 9, the pitch a of two adjacent third pixels 232 is 18 micrometers, and the diameter d of the third pixels 232 is 23 micrometers. In fig. 10, the pitch a of two adjacent third pixels 232 is 18 micrometers, and the diameter d of the third pixels 232 is 33 micrometers. In fig. 11, the pitch a of two adjacent third pixels 232 is 18 micrometers, and the diameter d of the third pixels 232 is 63 micrometers.

As can be seen from comparing fig. 9 to 11, the diffraction order spacing and d are in inverse proportion, and the diffraction order spacing is gradually reduced as d increases, and the ± 1 st order diffraction light intensity is strongest when the ratio of a to d is close to 0.5 d.

Based on this, in the display device 200 of the embodiment of the present application, the diameter of the cross section of the third pixel 232 may not be one half of the distance a between two adjacent third pixels 232, and when light passes through the third display region 230, the intensity of secondary diffraction light may be weak, so that diffraction may be reduced.

Fig. 12 is a partial schematic view of a display device in the electronic apparatus shown in fig. 1. The display device 200 further comprises a display layer and a driving layer, the driving layer being located at a side of the display layer facing the inside of the display device 200. The driving layer includes a plurality of first driving units 213, a plurality of second driving units 223, and a plurality of third driving units 233.

It is understood that the driving unit may adopt one of the driving circuits using 2T1C, 5T1C, 7T1C, etc. For example, the first driving unit 213 may adopt one of 2T1C, 5T1C, and 7T1C, the second driving unit 223 may adopt one of 2T1C, 5T1C, and 7T1C, and the third driving unit 233 may adopt one of 2T1C, 5T1C, and 7T 1C. Where T denotes a thin film transistor, and C denotes a capacitance. In order to improve the light transmittance of the third display region 230, the third driving unit 233 disposed in the third display region 230 may be a simpler driving circuit than the main driving units of the second display region 220 and the first display region 210, for example, the third driving unit 233 includes a smaller number of thin film transistors than the second driving unit 223 and the first driving unit 213. For example, the third driving unit 233 may adopt one of 2T1C and 5T1C, the second driving unit 223 adopts 5T1C, and the first driving unit 213 adopts 7T 1C. The number of the light-opaque tfts in the third driving unit 233 is smaller, and the number of the light-opaque portions in the third display region 230 is smaller, so that the light transmittance of the third display region 230 can be improved.

The plurality of first driving units 213 are disposed in the first display region 210, and the first driving units 213 are used for driving the first pixels 212, for example, one first driving unit 213 may be electrically connected to one first pixel 212, and one first driving unit 213 may also be connected to a plurality of first pixels 212, for example, two, four, or six.

A plurality of second driving units 223 are disposed in the second display area 220, the second driving units 223 are used for driving the second pixels 222, for example, one second driving unit 223 may be electrically connected to one second pixel 222, and one second driving unit 223 may also be connected to a plurality of second pixels 222, for example, two, four, or six, etc.

The plurality of third driving units 233 are disposed in the second display region 220, the third driving units 233 are used for driving the third pixels 232, for example, one third driving unit 233 may be electrically connected to one second pixel 232, and one third driving unit 233 may also be connected to a plurality of third pixels 232, for example, two, four or six, etc. By disposing the third driving unit 233 of the third display region 230 in the second display region 220, the light transmittance of the third display region 230 can be improved, and the light quality of the image sensor can be improved.

One third driving unit 233 may be located below the second pixel 222, that is, a projection of one third driving unit 233 on the driving layer is located in one second pixel 22, so that the light transmittance of the third display area 230 may be improved on the basis of saving an occupied area of the third driving unit 233 in the horizontal direction of the second display area 220.

It is understood that the projections of the plurality of third driving units 233 on the driving layer are located in one second pixel 22, so as to further save the occupied space of the third driving units 233 in the horizontal direction of the second display area 220.

It is understood that a plurality of third driving units 233 may also be disposed in the first display region 210, and specifically, one third driving unit 233 is located below one first pixel 212, that is, a projection of one third driving unit 233 on the driving layer is located in one first pixel 212.

It can be understood that a plurality of the third driving units 233 may also be partially disposed in the first display area 210, and the other portion is disposed in the second display area 220, so as to save the occupied space of the third driving units 233 in the horizontal direction of the second display area 220.

Referring to fig. 13 and fig. 14, fig. 13 is a fifth structural schematic diagram of the display device in the electronic apparatus shown in fig. 1, and fig. 14 is a partial schematic diagram of the display device shown in fig. 13. The display device 200 further comprises a non-display area 240, and the non-display area 240 may be understood as a black border of the display device 200, and the width of the black border may be very narrow, for example, the width of the black border is less than 1 mm or 0.5 mm.

The non-display area 240 is located at the periphery of the illustrated first display area 210, and the non-display area 240 does not display information. The plurality of third driving units 233 of the third display region 230 may be partially located in the second display region 220, and another portion may be located in the non-display region 240, on one hand, the light transmittance of the third display region 230 may be improved, and on the other hand, by disposing part of the third driving units 233 in the non-display region 240, the occupied area of part of the third driving units 233 in the horizontal direction of the second display region 220 may be saved, and more space may be reserved for disposing part of the first signal lines 211 of the first display region 210.

It is understood that the plurality of third driving units 233 may be all located in the non-display area 240, so as to further save the occupied area of the third driving units 233 in the horizontal direction of the second display area 220, and more space may be reserved for disposing a portion of the first signal lines 211 of the first display area 210.

When current passes between the anode layer and the metal cathode layer, electrons and holes injected by the electrodes are combined in the light emitting layer to form excitons, and the excitons are radiated and de-excited to emit photons and generate visible light.

Since OLED pixels can self-emit light, the emitted light can be transmitted toward the outside of the display device 200 and absorbed by the human eye. The emitted light may also be transmitted toward the inside of the display device 200, and the light transmitted to the inside of the display device 200 is generally referred to as screen leakage light, and this part of light is not received by human eyes, which may affect the brightness of the display device 200 on one hand, and also cause the transmittance of pixels to be low, thereby generating diffraction phenomenon on the other hand. In order to improve the brightness of the display device 200, in the related art, a light-reflecting material, such as a silver material, is often added in the anode layer, and when light passes through the OLED pixels, screen leakage light of the display layer can be reflected to the outside of the display device 200 under the reflection action of the silver material.

The addition of the reflective material in the anode layer can improve the brightness of the display device 200, but it may reduce the light transmittance of the pixels in the display layer, and when light passes through the display device 200, diffraction may be generated, which may worsen the lighting and photographing effects of the image sensor 700.

Therefore, referring to fig. 15, fig. 15 is a cross-sectional view of the display device shown in fig. 13 along the direction P2-P2. In the display device 200 of the embodiment of the application, the display device 200 includes a first display layer 201, a second display layer 202, and a third display layer 203, the first display layer 201 is disposed opposite to the first display area 210, the second display layer 202 is disposed opposite to the second display area 220, and the third display layer 203 is disposed opposite to the third display area 230.

The light reflecting layer 204 may be formed inside the first display layer 201 and the second display layer 202 by disposing a light reflecting material in the anode layers of the first display layer 201 and the second display layer 202 to ensure the display brightness of the display apparatus 200.

It is understood that the light reflecting layer 204 may also be disposed on one side, for example, the inner side, of the first display layer 201 and the second display layer 202 to ensure the display brightness of the display device 200.

In order to simultaneously achieve both the display brightness and the photographing effect of the image sensor 700, the display device 200 of the embodiment of the present application may further include a barrier, which may be disposed between the third display layer 203 and the image sensor 700. The barrier can be switched between a first state and a second state, and the barrier in the first state can reflect light emitted by the first display layer 201, the second display layer 202 and the third display layer 203 to the outside of the display device 200 or absorb the light; the barrier in the second state may allow at least a portion of ambient light to pass through the display device 200 and into the image sensor 700.

Referring to fig. 16 and 17, fig. 16 is a first cross-sectional view of the electronic device shown in fig. 1 along lines M1 to M2, and fig. 17 is a second cross-sectional view of the electronic device shown in fig. 1 along lines M1 to M2. The barrier may be an electro-reflective layer 250, the electro-reflective layer 240 may be disposed between the display device 200, for example, the third display layer 203 and the image sensor 700, and the electro-reflective layer 250 may be disposed opposite to the third display layer 203 and the third display region 230. Also, under the action of an electric current, the electro-reflective layer 250 can achieve a reversible change from a colored state of low light transmittance to a bleached state of high light transmittance.

For example, as shown in fig. 16, in the non-energized state, the electroluminescent layer 250 of the embodiment of the present application may exhibit a first state of color, in which the electroluminescent layer 250 has a low light transmittance, and light emitted from the first display layer 201, the second display layer 202, and the third display layer 203 cannot pass through the electroluminescent layer 250; also, the electroluminescent layer 250 may be made of a material having a reflective function, so that the electroluminescent layer 250 may reflect light emitted from the organic light emitting layer to the outside of the display device 200 in the first state.

As shown in fig. 17, in the powered state, the electroluminescent reflective layer 250 of the embodiment of the present application may exhibit a transparent second state, in which the electroluminescent reflective layer 250 has a high light transmittance and ambient light can pass through the electroluminescent reflective layer 250 and enter the image sensor 700, and in the second state, the electroluminescent reflective layer 250 may enable at least a portion of the ambient light to pass through the display device 200 and enter the image sensor 700.

The barrier may also be an electro-absorption layer, which may be disposed between the display device 200, for example, the third display layer 203 and the image sensor 700, and which may be disposed opposite to the third display layer 203 and the third display region 230. Also, the electro-absorption layer can reversibly change from a colored state with low transmittance to a bleached state with high transmittance under the action of current.

For example, in the non-energized state, the electro-absorption layer of the embodiment of the present application may exhibit a first state of color in which the electro-absorption layer has a low light transmittance and the third display layer 203 emits light that cannot pass through the electro-absorption layer and can be absorbed by the electro-absorption layer.

In the powered state, the electro-absorption layer of the embodiment of the present application may exhibit a transparent second state, in which the electro-absorption layer has a high light transmittance and ambient light may pass through the electro-absorption layer and enter the image sensor 700, and in the second state, the electro-absorption layer may enable at least a portion of the ambient light to pass through the display device 200 and enter the image sensor 700.

Referring to fig. 18 and 19, fig. 18 is a third cross-sectional view of the electronic device shown in fig. 1 along lines M1 to M2, and fig. 19 is a fourth cross-sectional view of the electronic device shown in fig. 1 along lines M1 to M2. The barrier may also be a reflective element 260, and the electronic device 10 may further include a driving mechanism 270, where the driving mechanism 270 may be electrically connected to the reflective element 260, and under the action of the driving mechanism 270, the reflective element 260 may be switched between a first state and a second state, where the first state is where the reflective element 260 is disposed opposite to the third display layer 203, and the second state is where the reflective element 260 is at least partially offset from the third display layer 203.

As shown in fig. 18, when the light reflecting element 260 is in the first state, the light reflecting surface of the light reflecting element 260 may be disposed opposite to the light emitting surface of the third display layer 203, and the projection of the light reflecting surface of the light reflecting element 260 on the third display layer 203 may cover the third display layer 203 and the light emitting surface, so that the light reflecting element 260 may reflect all the light emitted from the third display layer 203 to the outside of the display device 200.

As shown in fig. 19, when the light reflecting member 260 is in the second state, the light reflecting surface of the light reflecting member 260 may be completely or partially offset from the light emitting surface of the third display layer 203. The offset arrangement may mean that the projection of the light reflecting element 260 on the third display layer 203 does not completely intersect with the third display layer 203, and the projection of the light reflecting surface on the third display layer 203 does not completely intersect with the projection of the light emitting surface on the third display layer 203. At this time, the light reflecting member 260 does not block the third display layer 203 at all, and the light emitted from the third display layer 203 may directly enter the inside of the display device 200 without being reflected and be received and detected by the image sensor 700.

It is understood that the offset arrangement may also mean that the projection of the light reflecting element 260 on the third display layer 203 does not intersect with the portion of the third display layer 203, and the projection of the light reflecting surface on the third display layer 203 does not intersect with the projection of the light emitting surface on the third display layer 203. At this time, the light reflecting element 260 does not completely block the third display layer 203, and a part of light emitted from the third display layer 203 may directly enter the inside of the display device 200 without being reflected and be received and detected by the sensor.

Of course, the staggered arrangement may also mean that a preset included angle is formed between the light reflecting surface of the light reflecting element 260 and the light emitting surface, and the preset included angle may be greater than zero degrees and less than three hundred sixty degrees, so that the light reflecting surface is not completely opposite to the light emitting surface, and at this time, part of the light rays emitted by the third display layer 203 may pass through the light reflecting element 260 and not be reflected, so as to enter the inside of the display device 200 and be received and detected by the image sensor 700.

It is understood that the driving mechanism 270 may be a motor driving mechanism, for example, the driving mechanism 270 may include a motor and a sliding rail, the sliding rail may be disposed on one side, for example, the inner side, of the third display layer 203, a rotating shaft of the motor may be connected to the light reflecting element 260, and the motor drives the light reflecting element 260 to slide on the sliding rail, so that the light reflecting element 260 may be disposed opposite to the third display layer 203 and cover the third display region 230, or the light reflecting element 260 may be disposed offset from the third display layer 203 and away from the third display region 230.

Illustratively, the driving mechanism 270 may also be an electromagnetic driving mechanism, for example, the driving mechanism 270 may include two magnets, a spring and an electromagnetic circuit, the two magnets are respectively disposed on the reflective element 260 and the third display layer 203, one end of the spring is connected to the reflective element 260, and the other end of the spring may be fixed on the structure of the second display area 220. When the electromagnetic circuit is turned on, the light reflecting member 260 and the third display layer 203 are under the magnetic attraction, the light reflecting member 260 is disposed opposite to the third display layer 203 and covers the third display region 230, and the spring is stretched. When the electromagnetic circuit is turned off, the magnetic attraction between the light reflecting member 250 and the third display layer 203 disappears, and the light reflecting member 260 is pulled back to the original position by the spring, that is, the light reflecting member 260 is disposed to be offset from the third display layer 203 and away from the third display region 230.

Of course, the driving mechanism 270 of the embodiment of the present application is not limited to the above example, and the driving mechanism 270 may be other driving mechanisms, such as a cylinder driving mechanism, a motor gear driving mechanism, a motor belt driving mechanism, and the like. It is within the scope of the present application for the drive mechanism 270 to switch the reflective element 260 between the first state and the second state.

In the display device 200 and the electronic device 10 of the embodiment of the application, the blocking member can be switched between the first state and the second state, when the blocking member is in the first state, the blocking member can completely block the third display layer 203, and the blocking member can completely reflect light emitted by the third display layer 203 to the outside of the display device 200 or completely absorb the light, so that the brightness of the display device 200 can be ensured and the reflection can be reduced; when the blocking member is in the second state, the blocking member cannot completely block the third display layer 203, and light may directly enter the display device 200 without passing through the blocking member and be received by the image sensor 700. Accordingly, on the one hand, the light transmittance of the display device 200 may be improved, and on the other hand, the plurality of third pixels 232 of the third display layer 203 may not form a diffraction grating and may not affect the photographing effect of the image sensor 700.

The electronic device and the display device thereof provided by the embodiment of the application are described in detail above. The principles and implementations of the present application are described herein using specific examples, which are presented only to aid in understanding the present application. Meanwhile, for those skilled in the art, according to the idea of the present application, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present application.

Claims

1. A display device, comprising:

a first display area;

a third display area, the third display area surrounding the second display area, the third display area and the second display area being adjacent to each other, the pixel density of the third display area being less than the pixel density of the second display area; and

2. The display device according to claim 1, wherein the second display region comprises a first sub display region and a second sub display region which are oppositely arranged, and the first sub display region and the second sub display region are located on two sides of the third display region.

3. The display device according to claim 2, wherein the first sub-display region and the second sub-display region are symmetrically disposed with respect to the third display region.

4. The display device according to claim 2, wherein an area of the first sub-display region is larger or smaller than an area of the second sub-display region.

5. The display device according to any one of claims 1 to 4, wherein the first display region includes a plurality of first pixels, the second display region includes a plurality of second pixels, and the third display region includes a plurality of third pixels;

the display device further includes:

the plurality of first driving units are arranged in the first display area, and each first driving unit is at least electrically connected with one first pixel;

the plurality of second driving units are arranged in the second display area, and each second driving unit is at least electrically connected with one second pixel; and

and the plurality of third driving units are arranged in the second display area, and each third driving unit is at least electrically connected with one third pixel.

6. The display device according to any one of claims 1 to 4, wherein the first display region includes a plurality of first pixels, the second display region includes a plurality of second pixels, and the third display region includes a plurality of third pixels;

the display device further includes:

the non-display area is positioned at the periphery of the first display area, and the non-display area and the first display area are adjacent to each other;

the plurality of first driving units are arranged in the non-display area and at least electrically connected with one first pixel;

the plurality of second driving units are arranged in the second display area and at least electrically connected with one second pixel; and

and the plurality of third driving units are at least electrically connected with one third pixel, one part of the third driving units is arranged in the second display area, and the other part of the third driving units is arranged in the non-display area.

7. A display device as claimed in claim 5 or 6, wherein the third pixel is arranged to block light of a first wavelength, the third pixel having a circular cross-section with a diameter that is a non-integer multiple of half the first wavelength.

8. The display device according to claim 7, wherein the plurality of third pixels are arranged at intervals, and each of the third pixels has a cross section with a diameter larger than or smaller than one half of a pitch between two adjacent third pixels.

9. The display device according to claim 5 or 6, characterized in that the display device further comprises:

and the blocking piece is arranged on one side of the third pixel and used for switching between a first state and a second state, the first state is that the blocking piece is arranged right opposite to the third display area, and the second state is that the blocking piece is at least partially staggered with the third display area.

10. An electronic device, comprising:

a display device according to any one of claims 1 to 9; and