Patent Description:
With the development of the electronic technologies, a size of a display screen in an electronic device such as a smart phone is getting larger and larger, and a screen-to-body ratio of the display screen is also getting higher and higher. In general, the display screen of the electronic device is disposed with a non-display area, which is used to set functional components such as a camera.

In order to further improve the screen-to-body ratio of the display screen, setting the camera below the display screen has gradually emerged in the related art. The camera receives external light passing through the display screen, so as to achieve image acquisition.

<CIT> discloses a camera, which includes a camera lens group, an optical waveguide device, and a camera main body. One end of the optical waveguide device is connected to the camera lens group, the other end thereof is connected to the camera main body. The optical waveguide device is configured to transmit light acquired by the camera lens group to the camera main body.

<CIT> discloses an electronic apparatus provided with a liquid crystal panel and an illumination device that illuminates the liquid crystal panel. The illumination device includes a first light guide plate, first light source, a second light guide plate and a second light source. The first light guide plate has a first opening including a notch or a through hole, and faces the liquid crystal panel. The first light source faces the first light guide plate. The second light guide plate is provided in the first opening and faces the liquid crystal panel. The second light source faces the second light guide plate.

Embodiments of the disclosure provides a display screen assembly, an electronic device, and an image acquisition method, which can improve image acquisition effects of the electronic device.

In order to illustrate technical solutions in embodiments of the disclosure more clearly, the following will briefly introduce drawings needed in the description of the embodiments. Apparently, the drawings in the following description are merely some embodiments of the disclosure. For those skilled in the art, other drawings can be obtained from these drawings without any creative effort.

Technical solutions in embodiments of the disclosure will be described clearly and completely in combination with the drawings in the embodiments of the disclosure. Apparently, the described embodiments are merely some of the embodiments of the disclosure, not all of the embodiments.

An embodiment of the disclosure provides an electronic device. The electronic device may be a smart phone, a tablet computer, a game device, an augmented reality (AR) device, an automobile device, a data storage device, an audio playback device, a video playback device, a laptop computer, a desktop computing device, etc..

<FIG> illustrates a schematic structural view of a first structure of an electronic device according to an embodiment of the disclosure.

The electronic device <NUM> includes a display screen assembly <NUM>, a housing <NUM>, a circuit board <NUM>, and a battery <NUM>.

Specifically, the display screen assembly <NUM> is disposed on the housing <NUM> to form a display surface of the electronic device <NUM> for displaying information such as images and texts.

Understandably, the display screen assembly <NUM> may be disposed with a cover plate to protect the display screen assembly <NUM> and block the display screen assembly <NUM> from being scratched or damaged by water. The cover plate may be a transparent glass cover plate, so that a user can observe the content displayed by the display screen assembly <NUM> through the cover plate. For example, the cover plate may be a glass cover plate made of sapphire.

The housing <NUM> is used to form an external contour of the electronic device <NUM>, so as to accommodate electronic components, functional components, and the like of the electronic device <NUM>, and to seal and protect the electronic components and the functional components inside the electronic device. For example, the functional components such as a camera, a circuit board, and a vibration motor of the electronic device <NUM> may be disposed inside the housing <NUM>.

The circuit board <NUM> is disposed inside the housing <NUM>. Specifically, the circuit board <NUM> may be a main board of the electronic device <NUM>. The circuit board <NUM> may be integrated with one or more of the functional components such as a processor, a headphone interface, an acceleration sensor, a gyroscope, and a motor. In this situation, the display screen assembly <NUM> may be electrically connected to the circuit board <NUM> to control the display of the display screen assembly <NUM> through the processor on the circuit board <NUM>.

The battery <NUM> is disposed inside the housing <NUM>. In this situation, the battery <NUM> is electrically connected to the circuit board <NUM> to realize that the battery <NUM> supplies power to the electronic device <NUM>. The circuit board <NUM> may be disposed with a power management circuit. The power management circuit is used to distribute the voltage provided by the battery <NUM> to each electronic component in the electronic device <NUM>.

<FIG> illustrates a schematic structural view of a display screen assembly of the electronic device illustrated in <FIG>.

The display screen assembly <NUM> includes a display screen <NUM>, a coupling grating <NUM>, and an electrically-controlled light-passing device <NUM>. The display screen <NUM>, the coupling grating <NUM>, and the electrically-controlled light-passing device <NUM> are sequentially stacked.

Specifically, the display screen <NUM> may be a liquid crystal display (LCD) or an organic light-emitting diode (OLED) or other type of display screen.

The display screen <NUM> includes a first region <NUM> and a second region <NUM>. The first region <NUM> may be adjacent to the second region <NUM>, as shown in <FIG>. In other embodiments, the first region <NUM> may be disposed around a periphery of the second region <NUM>. The light transmittance of the first region <NUM> is less than that of the second region <NUM>. For example, the light transmittance of the first region <NUM> may be <NUM>%, and the light transmittance of the second region <NUM> may be <NUM>%.

In some embodiments, the first region <NUM> includes a reflective layer 111a. The reflective layer 111a is located on a side of the first region <NUM> facing away from the coupling grating <NUM>. The reflective layer 111a is used to reflect light, for example, the light generated in the first region <NUM> is reflected, so that the light generated in the first region <NUM> is emitted toward a side of the coupling grating <NUM>, thereby improving the brightness of the first region <NUM> when displaying information.

In the description of the disclosure, it should be understood that terms such as "first" and "second" are merely used to distinguish similar objects, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features.

In some embodiments, <FIG> illustrates a schematic structural view of a first structure of a display screen of the display screen assembly illustrated in <FIG>.

Specifically, the first region <NUM> is disposed with multiple pixels 111b. That is, the first region <NUM> includes multiple pixels 111b. It can be understood that, when the display screen <NUM> displays information, in order to make the light generated by the pixels 111b transmit to the outside of the electronic device as much as possible and reduce the loss of light in the electronic device, thereby ensuring the brightness of the display screen <NUM> when displaying information, a reflective layer may be set at a bottom of the multiple pixels 111b, and the light transmitted to the inside of the electronic device is reflected to the outside of the electronic device through the reflective layer. Therefore, the reflective layer 111a may be a reflective layer disposed at the bottom of the multiple pixels 111b of the first region <NUM>. In practical application, the reflective layer 111a may be anodes at the bottom of the multiple pixels 111b. That is, the reflective layer 111a includes the anodes of the multiple pixels 111b of the first region <NUM>. When the anodes at the bottom of the multiple pixels 111b is used as the reflective layer, the reflectivity can be close to <NUM>%. Therefore, the light transmittance of the pixels 111b are close to <NUM>. In this situation, it can be understood that the light transmittance of the first region <NUM> is also close to <NUM>.

The second region <NUM> is not disposed with pixels. As shown in <FIG>, the second region <NUM> is a gap region formed by the multiple pixels 111b. It can be understood that the first region <NUM> is surrounding a periphery of the second region <NUM> at this time. Since the second region <NUM> is not disposed with the pixels with the light transmittance close to <NUM>, the light transmittance of the second region <NUM> is high. In addition, the second region <NUM> may be disposed with some electronic , such as a pixel driving circuit, and the pixel driving circuit may be made of materials with high light transmittance (such as indium tin oxide abbreviated as ITO) to ensure the light transmittance of the second region <NUM>. It can be understood that the pixel driving circuit may be a driving circuit of the multiple pixels 111b.

In some embodiments, <FIG> illustrates a schematic structural view of a second structure of the display screen of the display screen assembly illustrated in <FIG>.

A difference between the display screen <NUM> shown in <FIG> and that shown in <FIG> is that the second region <NUM> may be separately disposed. That is, the second region <NUM> is not formed by the gap region between the multiple pixels 111b, but is separately disposed outside the first region <NUM>. For example, the second region <NUM> may be disposed beside the first region <NUM> and connected to the first region <NUM>.

The second region <NUM> may not be disposed with pixels, but the second region <NUM> may still be disposed with components with high light transmittance such as a pixel driving circuit, and in this case, the second region <NUM> cannot display information. It can be understood that the second region <NUM> may be disposed at an edge of the display screen <NUM>. In practical application, a size of the second region <NUM> may be set smaller, so as to reduce the influence on the display function of the entire display screen <NUM>.

In some embodiments, <FIG> illustrates a schematic structural view of a third structure of the display screen of the display screen assembly illustrated in <FIG>.

The display screen <NUM> further includes a third region <NUM>. The third region <NUM> may be disposed at a periphery of the first region <NUM>. The third region <NUM> is disposed with multiple pixels 113a, and thus the third region <NUM> can also display information normally. The pixel driving circuit of the first region <NUM> may be disposed in the third region <NUM>, and the pixel driving circuit of the first region <NUM> is the driving circuit of the multiple pixels 111b. Therefore, the pixel driving circuit of the multiple pixels 111b does not need to be disposed in the second region <NUM>, so as to further improve the light transmittance of the second region <NUM>.

In some embodiments, the multiple pixels 111b of the first region <NUM> may form multiple pixel groups 111c. That is, the first region <NUM> includes multiple pixel groups 111c. Each of the multiple pixel groups 111c includes at least two pixels 111b, and the pixels in each of the multiple pixel groups 111c are connected in parallel.

It can be understood that a pixel density of the third region <NUM> may be equal to that of the first region <NUM>. When the multiple pixels 111b in the first region <NUM> are formed into the multiple pixel groups 111c and the pixels in each of the multiple pixel groups 111c are connected in parallel, the parallel pixels in each of the multiple pixel groups 111c may share driving lines. Therefore, the number of driving lines required for the multiple pixels 111b can be reduced, thereby simplifying the driving circuit of the first region <NUM> as a whole, and facilitating the driving circuit of the first region <NUM> to be disposed in the third region <NUM>.

As shown in <FIG>, the coupling grating <NUM> is disposed on a side of the display screen <NUM>. For example, the coupling grating <NUM> may be disposed on a display side of the display screen <NUM>. It can be understood that the display side is a side of the display screen <NUM> that displays information, and can also be understood as a side of the light emitted by an internal light source of the display screen <NUM>.

Specifically, the coupling grating <NUM> is disposed opposite to the display screen <NUM>. The coupling grating <NUM> couples and transmits an external light being incident toward the first region <NUM> of the display screen <NUM> to be incident toward the second region <NUM>, and emits the external light from the second region <NUM>. It should be noted that the external light refers to light in an external environment, such as sunlight, light emitted by a fluorescent lamp (also referred to as daylight lamp), etc., instead of the light generated by the internal light source of the display screen <NUM>.

The coupling grating <NUM> includes a first coupling region <NUM> and a second coupling region <NUM>. The first coupling region <NUM> is opposite to the first region <NUM> of the display screen <NUM>, and the second coupling region <NUM> is opposite to the second region <NUM> of the display screen <NUM>. The external light being incident on the first coupling region <NUM> is coupled and transmitted to the second coupling region <NUM>, and emitted from the second coupling region <NUM> toward the second region <NUM>. Thus, the coupling grating <NUM> can realize coupling and transmitting the external light being incident toward the first region <NUM> to be incident toward the second region <NUM>.

For example, as shown in <FIG>, when the external light X is incident toward the first region <NUM> of the display screen <NUM>, the external light X is first transmitted to the coupling grating <NUM>, then the external light X is coupled and transmitted by the coupling grating <NUM> to be incident toward the second region <NUM> of the display screen <NUM>, and is emitted from the second region <NUM>. That is, the external light X being incident toward the first region <NUM> is offset by the coupling grating <NUM> to be incident toward the second region <NUM>, and is emitted from the second region <NUM>.

In addition, the coupling grating <NUM> further allows an external light being incident toward the second region <NUM> of the display screen <NUM> to be transmitted to the second region <NUM> through the coupling grating <NUM> and emitted from the second region <NUM>.

For example, as shown in <FIG>, when the external light Y is incident toward the second region <NUM> of the display screen <NUM>, the external light Y is first transmitted to the coupling grating <NUM>, and then the external light Y is transmitted to the second region <NUM> through the coupling grating <NUM>, and is emitted from the second region <NUM>.

<FIG> illustrates a schematic view of propagation of light when passing through the coupling grating <NUM>.

The coupling grating <NUM> includes a periodic grating structure <NUM>. When the external light is transmitted to the coupling grating <NUM>, refraction and transmission occur at the grating structure <NUM>. For example, when the external light M is transmitted to the coupling grating <NUM>, the external light M refracts at the grating structure <NUM> to form a refracted light (also referred to as refracted ray) K, and transmits to form a transmitted light S. The refracted light K continues to transmit inside the coupling grating <NUM>, and continues to refract at the next grating structure. Since the refracted light K refracts continuously inside the coupling grating <NUM>, the light transmission path is changed. The transmitted light S passes through the coupling grating <NUM> and is transmitted to the inside of the electronic device, and finally is lost in the electronic device.

It should be noted that with the maturity of coupling grating technology and manufacturing process, the optical performance of the coupling grating can be relatively excellent. In this situation, when the external light refracts and transmits in the coupling grating <NUM>, the refracted light K formed is stronger, while the transmitted light S formed is weaker. Therefore, when the external light passes through the coupling grating <NUM>, the loss of the external light is small, and thus information carried by the external light can be obtained through the refracted light K. The transmission and utilization of the refracted light K are analyzed and described in the present disclosure, and the transmitted light S is ignored.

It should also be noted that the coupling grating <NUM> in the embodiment of the disclosure may be disposed with a periodic grating structure in a partial region of the first coupling region <NUM> and the second coupling region <NUM>, and a grating structure is not provided in other regions of the second coupling region <NUM>. Therefore, the region disposed with the periodic grating structure in the coupling grating <NUM> can couple and transmit the external light, such as the external light X in <FIG>, while the region not disposed with the grating structure can allow the external light to pass through directly, such as the external light Y in <FIG>.

<FIG> illustrates a schematic view of a first kind of light propagation in the coupling grating <NUM> of the display screen assembly illustrated in <FIG>.

The coupling grating <NUM> includes an entrance pupil surface 12a and an exit pupil surface 12b. The entrance pupil surface 12a may be understood as a light incident surface of the coupling grating <NUM>, and the exit pupil surface 12b may be understood as a light emitting surface of the coupling grating <NUM>.

When the external light emitted by a light source P is transmitted to the first coupling region <NUM> of the coupling grating <NUM>, the external light is incident into an interior of the coupling grating <NUM> from the entrance pupil surface 12a, then transmitted to the second coupling region <NUM> from the first coupling region <NUM> in the coupling grating <NUM>, and then the external light is emitted from the exit pupil surface 12b from the second coupling region <NUM> and transmitted to an optical imaging device Q, so that the optical imaging device Q can obtain an image of the light source P.

It should be noted that although the light source refers to an object that can emit light, such as the sun, the fluorescent lamp and other light sources, any object that can reflect light can be understood as a light source in practical application. For example, when a building reflects sunlight to form reflected light, the building can be understood as a light source, so that an image of the building can be obtained through the optical imaging device. For another example, when the human body reflects sunlight to form reflected light, the human body can also be understood as a light source, so that an image of the human body can be obtained through the optical imaging device.

<FIG> illustrates a schematic view of a second kind of light propagation in the coupling grating <NUM> of the display screen assembly illustrated in <FIG>.

The external light emitted by the light source P may be mixed color light, for example, the external light emitted by the light source P may include color lights such as red (R), green (G), and blue (B). The coupling grating <NUM> may be a multi-layer structure. When R, G, B, and other color lights are transmitted to the interior of the coupling grating <NUM>, the R, G, B and other color lights may be refracted at different parts inside the coupling grating <NUM>, and finally emitted from the second coupling region <NUM> and transmitted to the optical imaging device Q.

As shown in <FIG>, the electrically-controlled light-passing device <NUM> is disposed on a side of the coupling grating <NUM> facing away from the display screen <NUM>, it can also be understood that the electrically-controlled light-passing device <NUM> is disposed on a side facing the user when the display screen assembly <NUM> displays information.

The electrically-controlled light-passing device <NUM> is opposite to the first region <NUM> of the display screen <NUM>. It can be understood that the electrically-controlled light-passing device <NUM> is also opposite to the first coupling region <NUM> of the coupling grating <NUM>. The electrically-controlled light-passing device <NUM> allows the external light to be incident toward the first region <NUM> of the display screen <NUM>, or blocks the external light from being incident toward the first region <NUM>.

Since the external light is first transmitted to the coupling grating <NUM> when the external light is incident on the display screen <NUM>, the electrically-controlled light-passing device <NUM> can also be understood as allowing the external light to be incident toward the first coupling region <NUM> of the coupling grating <NUM>, or blocking the external light from being incident toward the first coupling region <NUM>.

The electrically-controlled light-passing device <NUM> is understood as a control switch for external light transmission. The electrically-controlled light-passing device <NUM> has a light-shielding state and a light-transmitting state, and is switchable between the light-shielding state and the light-transmitting state. In the light-shielding state, the electrically-controlled light-passing device <NUM> does not allow the external light to pass through; and in the light-transmitting state, the electrically-controlled light-passing device <NUM> allows the external light to pass through.

When the electrically-controlled light-passing device <NUM> is turned on, the electrically-controlled light-passing device <NUM> is in a light-shielding state, and in this situation, the electrically-controlled light-passing device <NUM> blocks the external light from being incident toward the first region <NUM> of the display screen <NUM>. When the electrically-controlled light-passing device <NUM> is turned off, the electrically-controlled light-passing device <NUM> is in a light-transmitting state, and in this situation, the electrically-controlled light-passing device <NUM> allows the external light to pass through the electrically-controlled light-passing device <NUM> and to be incident toward the first region <NUM>.

Therefore, it can be understood that when the electrically-controlled light-passing device <NUM> is turned on, the external light cannot be transmitted to the first coupling region <NUM> of the coupling grating <NUM>. When the electrically-controlled light-passing device <NUM> is turned off, the external light can be transmitted to the first coupling region <NUM> of the coupling grating <NUM> through the electrically-controlled light-passing device <NUM>, then transmitted from the first coupling region <NUM> to the second coupling region <NUM>, and transmitted from the second coupling region <NUM> to the second region <NUM> of the display screen <NUM> and finally emitted from the second region <NUM>.

<FIG> illustrates a schematic structural view of a second structure of an electronic device <NUM> according to an embodiment of the disclosure.

The electronic device <NUM> further includes a control circuit <NUM>. The control circuit <NUM> may, for example, be disposed on the circuit board <NUM>. The control circuit <NUM> is electrically connected to the electrically-controlled light-passing device <NUM>. The control circuit <NUM> is used to control the electrically-controlled light-passing device <NUM> to be turned on or turned off, so that the electrically-controlled light-passing device <NUM> allows the external light to be incident toward the first region <NUM> of the display screen <NUM> or blocks the external light from being incident toward the first region <NUM>.

It can be understood that the control circuit <NUM> may include a high-frequency switching switch, such as a switching tube, to switch on or off the electrically-controlled light-passing device <NUM> through the high-frequency switching switch.

<FIG> illustrates a schematic structural view of a third structure of an electronic device according to an embodiment of the disclosure.

The electronic device <NUM> further includes an optical imaging device <NUM> for acquiring an image. The optical imaging device <NUM> may be, for example, a camera, a video camera, or the like. The optical imaging device <NUM> is disposed on a side of the display screen <NUM>. It can be understood that in order to realize the hiding of the optical imaging device <NUM> in the electronic device <NUM>, the optical imaging device <NUM> may be disposed on a non-display side of the display screen <NUM>. Specifically, the non-display side is a side of the display screen <NUM> that does not display information, that is, a side of the display screen <NUM> facing the inside of the electronic device. For the entire electronic device <NUM>, the optical imaging device <NUM> is disposed at a bottom of the display screen <NUM>, and thus the optical imaging device <NUM> is invisible to the user.

The optical imaging device <NUM> is opposite to the second region <NUM> of the display screen <NUM>. The optical imaging device <NUM> is used for receiving the external light emitted from the second region <NUM> to obtain an image.

It can be understood that the external light being incident on the first region <NUM> of the display screen <NUM> is emitted from the second region <NUM> after being coupled and transmitted by the coupling grating <NUM> and transmitted to the optical imaging device <NUM>. The external light being incident toward the second region <NUM> is transmitted to the optical imaging device <NUM> after sequentially passing through the second coupling region <NUM> of the coupling grating <NUM> and the second region <NUM>.

<FIG> illustrates a first schematic view of the electronic device acquiring an image according to the embodiment of the disclosure.

It can be understood that since the optical imaging device <NUM> is opposite to the second region <NUM> of the display screen <NUM>, and the external light can pass through the second region <NUM>, the optical imaging device <NUM> can receive the external light passing through the second region <NUM>, so as to obtain an image corresponding to the external light. For example, the optical imaging device <NUM> can receive the external light passing through the second region <NUM> to realize functions such as photographing and video recording.

When the electrically-controlled light-passing device <NUM> is turned off, that is, when the electrically-controlled light-passing device <NUM> allows the external light to be incident toward the first region <NUM> of the display screen <NUM>, the optical imaging device <NUM> acquires a first image.

For example, when the external light X is incident toward the first region <NUM> of the display screen <NUM>, the electrically-controlled light-passing device <NUM> allows the external light X to pass through. Then, the external light X is transmitted to the first coupling region <NUM> of the coupling grating <NUM>, and is coupled and transmitted from the first coupling region <NUM> to the second coupling region <NUM> and then emitted from the second coupling region <NUM> and transmitted to the second region <NUM> of the display screen <NUM>. Finally, the external light X is emitted from the second region <NUM> and received by the optical imaging device <NUM>.

In addition, when the external light Y is incident toward the second region <NUM> of the display screen <NUM>, the external light Y sequentially passes through the second coupling region <NUM> and the second region <NUM>, and is emitted from the second region <NUM> and received by the optical imaging device <NUM>.

Therefore, the first image acquired by the optical imaging device <NUM> includes an image corresponding to the external light X and an image corresponding to the external light Y, and the image corresponding to the external light X overlaps with the image corresponding to the external light Y.

<FIG> illustrates a second schematic view of the electronic device acquiring the image according to the embodiment of the disclosure.

When the electrically-controlled light-passing device <NUM> is turned on, that is, when the electrically-controlled light-passing device <NUM> blocks the external light from being incident toward the first region <NUM> of the display screen <NUM>, the optical imaging device <NUM> acquires a second image.

For example, when the external light X is incident toward the first region <NUM> of the display screen <NUM>, the electrically-controlled light-passing device <NUM> blocks the transmission of the external light X. Therefore, the external light X cannot continue to be transmitted.

When the external light Y is incident toward the second region <NUM> of the display screen <NUM>, the external light Y sequentially passes through the second coupling region <NUM> and the second region <NUM>, and is emitted from the second region <NUM> and received by the optical imaging device <NUM>.

Therefore, the second image acquired by the optical imaging device <NUM> includes the image corresponding to the external light Y, but does not include the image corresponding to the external light X.

Understandably, in a real image corresponding to the external light X and the external light Y, the image corresponding to the external light X and the image corresponding to the external light Y should be parts of the real image respectively, and the two images do not overlap. The two images are spliced together as a complete real image.

Therefore, in order to acquire the complete real image, after the optical imaging device <NUM> acquires the first image and the second image respectively, the electronic device <NUM> can generate a final image according to the first image and the second image. The final image is the complete real image.

For example, the electronic device <NUM> can remove image information corresponding to the second image from the first image to obtain a third image. It can be understood that since the first image includes the image corresponding to the external light X and the image corresponding to the external light Y, the second image includes the image corresponding to external light Y, the third image is the image corresponding to external light X.

Then, the electronic device <NUM> can splice the second image with the third image to obtain the final image.

When removing the image information corresponding to the second image from the first image, the electronic device <NUM> can process each pixel point of the first image in turn, for example, subtracting a pixel value of a corresponding pixel point of the second image from a pixel value of each pixel point of the first image. After the pixel value of the corresponding pixel point of the second image is successively subtracted from the pixel value of each pixel point of the first image, the pixel value of the pixel point obtained is the pixel value of each pixel point of the third image.

In addition, it can be understood that when the electronic device <NUM> processes each pixel point of the first image, the first image and the second image can be converted into grayscale images first, and then processed. Moreover, after the first image and the second image are converted into the grayscale images, if the grayscale of the converted first image is different from that of the converted second image, the converted first image and the converted second image can also be adjusted to the same grayscale, and then processed.

In practical application, the electronic device <NUM> may first control the electrically-controlled light-passing device <NUM> to be turned off through the control circuit <NUM> when photographing or video recording is required, so that the electrically-controlled light-passing device <NUM> allows the external light to pass through, and then the first image is acquired through the optical imaging device <NUM>. Then, the control circuit <NUM> controls the electrically-controlled light-passing device <NUM> to be turned on, so that the electrically-controlled light-passing device <NUM> blocks the transmission of the external light, and then the second image is acquired through the optical imaging device <NUM>. Finally, the electronic device <NUM> can generate the final image, that is, the complete real image, according to the first image and the second image.

It should be noted that when the electrically-controlled light-passing device <NUM> is turned on, the electrically-controlled light-passing device <NUM> does not allow light to pass through, and in this situation, the light generated in the first region <NUM> of the display screen <NUM> cannot be transmitted to the outside, so the first region <NUM> cannot display information normally. Therefore, the electronic device <NUM> can turn off the display function of the first region <NUM> when photographing or video recording is required, or turn off the display function of the first region <NUM> while the electrically-controlled light-passing device <NUM> is controlled to be turned on.

<FIG> illustrates a schematic structural view of a fourth structure of an electronic device <NUM> according to an embodiment of the disclosure.

The electronic device <NUM> further includes a processor <NUM>. The processor <NUM> may, for example, be disposed on the circuit board <NUM>. The processor <NUM> is electrically connected to the optical imaging device <NUM>. When the optical imaging device <NUM> acquires the first image and the second image respectively, the processor <NUM> may be used to generate the final image according to the first image and the second image.

For example, the processor <NUM> may be used to remove the image information corresponding to the second image from the first image to obtain the third image, and to splice the second image with the third image to obtain the final image.

An embodiment of the disclosure provides an image acquisition method, which is applied to the above electronic device <NUM>. The specific implementation of the image acquisition method may refer to the description of the above embodiments, and will not be repeated herein.

Specifically, the embodiment of the disclosure provides the image acquisition method, which is applied to the electronic device, and the electronic device includes:.

In some embodiments, the generating a final image according to the first image and the second image includes:.

In the claimed invention, when the electrically-controlled light-passing device is turned on, the electrically-controlled light-passing device is in a light-shielding state to block the external light from being incident toward the first region; and
when the electrically-controlled light-passing device is turned off, the electrically-controlled light-passing device is in a light-transmitting state to allow the external light to pass through the electrically-controlled light-passing device and be incident toward the first region.

In some embodiments, the electronic device further includes a control circuit electrically connected to the electrically-controlled light-passing device.

In some embodiments, the acquiring, in response to the electrically-controlled light-passing device being turned off, a first image through the optical imaging device includes:
controlling, through the control circuit, the electrically-controlled light-passing device to be turned off to acquire the first image through the optical imaging device.

The acquiring, in response to the electrically-controlled light-passing device being turned on, a second image through the optical imaging device includes:
controlling, through the control circuit, the electrically-controlled light-passing device to be turned on to acquire the second image through the optical imaging device.

The electronic device <NUM> according to the embodiment of the disclosure can acquire the first image when the electrically-controlled light-passing device <NUM> allows the external light to pass through. The first image includes the image corresponding to the external light being incident toward the first region <NUM> of the display screen <NUM> and the image corresponding to the external light being incident toward the second region <NUM> of the display screen <NUM>. When the electrically-controlled light-passing device <NUM> blocks the external light from passing through, the second image is acquired. The second image includes the image corresponding to the external light being incident toward the second region <NUM>, but does not include the image corresponding to the external light being incident toward the first region <NUM>. Finally, the final image is acquired according to the first image and the second image, and therefore the optical imaging device <NUM> can avoid acquiring the external image through the first region <NUM>. Since the light transmittance of the first region <NUM> is less than that of the second region <NUM>, the influence of the first region <NUM> with smaller light transmittance on the acquired image can be avoided, and thus the effect of acquiring the image can be improved.

Claim 1:
A display screen assembly (<NUM>), comprising:
a display screen (<NUM>), comprising a first region (<NUM>) and a second region (<NUM>), and light transmittance of the first region (<NUM>) being less than light transmittance of the second region (<NUM>);
a coupling grating (<NUM>), stacked on a side of the display screen (<NUM>), wherein the coupling grating (<NUM>) is configured to couple and transmit an external light being incident toward the first region (<NUM>) to the second region (<NUM>) and pass through the second region (<NUM>); and
an electrically-controlled light-passing device (<NUM>), stacked on a side of the coupling grating (<NUM>) facing away from the display screen (<NUM>), wherein the electrically-controlled light-passing device (<NUM>) faces to the first region (<NUM>), and is switchable between a light-shielding state and a light-transmitting state;
when the electrically-controlled light-passing device (<NUM>) is turned off, the electrically-controlled light-passing device (<NUM>) is in the light-transmitting state and is configured to allow the external light to be incident toward the first region (<NUM>); and when the electrically-controlled light-passing device (<NUM>) is turned on, the electrically-controlled light-passing device (<NUM>) is in the light-shielding state and is configured to block the external light from being incident toward the first region (<NUM>).