Patent Description:
The present invention relates to the technical field of communication devices, and in particular, to an electronic device.

Electronic devices such as a smart phone and a tablet computer have become indispensable products in people's life, and the screen-to-body ratio of the electronic devices is one of the important factors affecting user experience. Therefore, how to increase the screen-to-body of the electronic devices has become the design direction that the technicians in the art pay attention to.

In order to increase the screen-to-body ratio of existing electronic devices, the camera module can be disposed below the display module, and the display module is provided with a light-passing hole, so that it can be ensured that the camera module can work normally. The camera module mainly includes a bracket, a lens assembly, a light-shielding layer and other devices, wherein the lens assembly is mounted in the bracket, the light-shielding layer is mounted on the bracket, and the light-shielding layer is located above the lens assembly.

Due to a certain distance between the light-shielding layer and the display module, the light-passing hole formed in the display module needs to be larger than an inner diameter of the light-shielding layer. Meanwhile, due to an assembling error between the display module and the camera module, it is necessary to consider this assembling error and further enlarge the size of the light-passing hole when a hole is formed in the display module. Therefore, the light-passing hole formed in the existing display module is relatively large, resulting in relatively small screen-to-body ratio of the electronic device.

<CIT> discloses a display device, including: a backlight module, the backlight module is provided with a through hole; and a liquid crystal display module, the liquid crystal display module includes a display panel and a lower polarizing film and an upper polarizing film disposed on opposite surfaces of the display panel, the lower polarizing film is provided with a first via hole, and the upper polarizing film is corresponding to the liquid crystal display module The first via hole is provided with a second via hole, wherein the two side edges of the second via hole are provided with a light shielding portion.

<CIT> discloses a display screen, including: a display module, a cover plate and a shading unit; the cover plate is disposed on a surface of the display module, and the display module is provided with a through hole of the display module; the light shielding unit includes a light shielding ring and a light shielding layer, the light shielding layer is attached to a surface of the through hole of the display module, and the light shielding ring is disposed between the cover plate and the display module and is The position of the through hole of the display module corresponds to a diameter of the inner ring of the light shielding ring is smaller than the diameter of the through hole of the display module.

The present invention discloses an electronic device, so as to solve the problem of relatively small screen-to-body ratio of the electronic device.

To solve the foregoing problem, the present invention adopts the following technical solutions:
an electronic device which defined in claim <NUM>.

It is to be understood that both the forgoing general description and the following detailed description are exemplary only, and are not restrictive of the present disclosure.

The accompanying drawings described herein are used to provide further understanding of the present invention and constitute a part of the present invention. The illustrative embodiments of the present invention and descriptions thereof are used to explain the present invention, and do not constitute any improper limitation on the present invention. In the accompanying drawings:.

<FIG> is a section view of part of a structure of an electronic device according to an embodiment of the present invention.

Description of reference numerals:
<NUM>-display module, <NUM>-first substrate, <NUM>-second substrate, <NUM>-wiring structure, <NUM>-light-emitting portion, <NUM>-light-transmitting cover plate, <NUM>-optical adhesive, <NUM>-polarizer, <NUM>-foam, <NUM>-camera module, <NUM>-camera body, <NUM>-light-entrance hole, <NUM>-bracket, <NUM>-light-sensing chip, <NUM>-light-shielding layer.

To make the objectives, technical solutions and advantages of the present invention clearer, the following clearly describes the technical solutions of the present invention with reference to the specific embodiments of the present invention and the corresponding accompanying drawings.

The technical solutions disclosed by various embodiments of the present invention are described in detail below with reference to the accompanying drawings.

As shown in <FIG>, an embodiment of the present invention provides an electronic device. The electronic device may specifically include a display module <NUM> and a camera module <NUM>.

The display module <NUM> may specifically include a first substrate <NUM>, a second substrate <NUM> and a wiring structure <NUM>, wherein the first substrate <NUM> and the second substrate <NUM> are stacked, and the wiring structure <NUM> is disposed on a surface of the second substrate <NUM> facing the first substrate <NUM>. The first substrate <NUM> and the second substrate <NUM> may be glass plates, and a thin film transistor may be disposed on the second substrate <NUM>. The wiring structure <NUM> may be ring-shaped structure, the wiring structure <NUM> is provided with a first light-passing hole, and the first light-passing hole enables light to pass through, so that light in the external environment can enter the camera module <NUM>. The display module <NUM> may further include a light-emitting portion <NUM>, a light-transmitting cover plate <NUM>, an optical adhesive <NUM>, a polarizer <NUM> and foam <NUM>, wherein the light-emitting portion <NUM> may be disposed between the first substrate <NUM> and the second substrate <NUM>, and the light-emitting portion <NUM> may be an organic light-emitting layer; the polarizer <NUM> may be disposed on a surface of the first substrate <NUM> facing away from the second substrate <NUM>; the light-transmitting cover plate <NUM> is located on one side of the first substrate <NUM> away from the second substrate <NUM>, and the light-transmitting cover plate <NUM> may be connected to the polarizer <NUM> through the optical adhesive <NUM>; the foam <NUM> may be disposed on one side of the second substrate <NUM> away from the first substrate <NUM>, the foam <NUM> may be bonded to the second substrate <NUM> and may be provided with an avoidance hole, and at least one portion of the camera module <NUM> may be located in the avoidance hole, so that the influence on the normal work of the camera module <NUM> by stray light in the display module <NUM> is avoided; meanwhile, the space occupied by the camera module <NUM> can be reduced, so that the thickness of the electronic device can be reduced.

The camera module <NUM> may specifically include a camera body <NUM> and a light-shielding layer <NUM>, the camera body <NUM> is provided with a light-entrance hole <NUM>, the second substrate <NUM> is located between the first substrate <NUM> and the camera body <NUM>, the light-shielding layer <NUM> is disposed on a surface of the first substrate <NUM> facing away from the second substrate <NUM>, and the light-shielding layer <NUM> is provided with a second light-passing hole. The camera body <NUM> may specifically include a bracket <NUM>, a lens assembly and a light-sensing chip <NUM>, the lens assembly is disposed on the bracket <NUM>, and the lens assembly may include a convex lens, a concave lens and other lenses, so that the light converging effect can be achieved; and the light-sensing chip <NUM> may be disposed in the bracket <NUM>, the light-sensing chip <NUM> is provided with a light-sensing area for sensing light, and the light-sensing chip <NUM> may convert an optical signal into an electrical signal, so that corresponding image information is acquired. The second light-passing hole enables light to pass through, so that light in the external environment can enter the camera module <NUM> and arrive at the light-sensing area of the light-sensing chip <NUM>, and a shooting function can be realized.

The wiring structure <NUM> and the light-shielding layer <NUM> can play a role in shielding light, and the first light-passing hole, the second light-passing hole and the light-entrance hole <NUM> are arranged in the optical axis direction of the camera module <NUM>, so light in the external environment can sequentially pass through the second light-passing hole and the first light-passing hole and finally pass through the light-entrance hole <NUM> to enter the camera module <NUM>, and the camera module <NUM> can realize the shooting function. An orthographic projection of the first light-passing hole on a plane perpendicular to the optical axis direction of the camera module <NUM> and an orthographic projection of the second light-passing hole on the plane perpendicular to the optical axis direction are within an orthographic projection of the light-entrance hole <NUM> on the plane perpendicular to the optical axis direction. That is, during observation in the optical axis direction of the camera module <NUM>, an overall size of the first light-passing hole and an overall size of the second light-passing hole are smaller than an overall size of the light-entrance hole <NUM>. The size of the light-entrance hole <NUM> is slightly large. Such arrangement does not affect the screen-to-body ratio of the display module <NUM> and can ensure that light in the external environment enters the camera module <NUM> as much as possible. The first light-passing hole and the second light-passing hole will affect the screen-to-body ratio of the display module <NUM>, so on the premise of meeting the shooting requirement of the camera module <NUM>, the first light-passing hole and the second light-passing hole can be set as small as possible, thereby reducing the occupancy rate of the wiring structure <NUM> and the light-shielding layer <NUM> on the display area and increasing the screen-to-body ratio of the electronic device.

In the electronic device, the light-shielding layer <NUM> of the camera module <NUM> is disposed on the display module <NUM>. According to this design, on one hand, a distance between the light-shielding layer <NUM> and the display module <NUM> is nearly zero, so the first light-passing hole may be smaller; and on the other hand, there is no assembling error between the display module <NUM> and the light-shielding layer <NUM>, so it is unnecessary to consider the assembling error when the first light-passing hole is formed, the size of the first light-passing hole may be further reduced, and the screen-to-body ratio of the electronic device is higher. Meanwhile, after the size of the first light-passing hole is reduced, the appearance texture of the electronic device is improved, and the user experience is improved accordingly.

In an optional embodiment, at least one portion of the light-shielding layer <NUM> may be located between the first substrate <NUM> and the polarizer <NUM>. That is, the light-shielding layer <NUM>, the first substrate <NUM> and the polarizer <NUM> may be stacked. At this time, the positions of the light-shielding layer <NUM>, the first substrate <NUM> and the polarizer <NUM> are relatively independent, so it is more convenient to form the display module <NUM>.

In another optional embodiment, the polarizer <NUM> is provided with a third light-passing hole, and the light-shielding layer <NUM> is located in the third light-passing hole. The third light-passing hole enables light to pass through, so that the light transmittance of an area corresponding to the camera module <NUM> is increased, and the shooting quality of the camera module <NUM> is improved. At this time, one part of the optical adhesive <NUM> may extend into the third light-passing hole so as to fill the space in the third light-passing hole other than the light-shielding layer <NUM>. Therefore, this part of the optical adhesive <NUM> may be in contact with the surface of the first substrate <NUM> facing away from the second substrate <NUM> to be connected to the first substrate <NUM>, so that the structural strength of the display module <NUM> is higher. More importantly, when this structure is adopted, the light-shielding layer <NUM> may be disposed by using the space occupied by the polarizer <NUM>, so the light-shielding layer <NUM> will not additionally occupy space, and the thickness of the whole display module <NUM> is smaller; in addition, the part of the polarizer <NUM> without a hole has a certain light-shielding effect, so during observation in the optical axis direction of the camera module <NUM>, the light-shielding layer <NUM> and the polarizer <NUM> may form a seamless butting light-shielding structure, the size of the light-shielding layer <NUM> is smaller, and the manufacturing cost of the light-shielding layer <NUM> is reduced.

Further, the light-shielding layer <NUM> may be in contact with an inner wall of the third light-passing hole. Compared with the solution that there is a certain interval between the light-shielding layer <NUM> and the inner wall of the third light-passing hole, when the light-shielding layer <NUM> is in contact with the inner wall of the third light-passing hole, in the process of processing the display module <NUM>, the positions of the light-shielding layer <NUM> and the polarizer <NUM> may be referenced to each other, so that rapid formation of the display module <NUM> is facilitated, and the forming efficiency of the display module is improved.

As mentioned above, the first light-passing hole and the second light-passing hole will affect the screen-to-body ratio of the display module <NUM>; therefore, the first light-passing hole and the second light-passing hole may be set as small as possible. In an optional embodiment, an orthographic projection of the first light-passing hole on a plane perpendicular to the optical axis direction of the camera module <NUM> and an orthographic projection of the second light-passing hole on the plane perpendicular to the optical axis direction may coincide with each other. In other words, a shape of the first light-passing hole is the same as a shape of the second light-passing hole, and the sizes of the two are the same. This arrangement can make the sizes of the first light-passing hole and the second light-passing hole as small as possible; meanwhile, the relative positions of the first light-passing hole and the second light-passing hole may be referred to each other when the display module <NUM> is formed, so that it is more convenient to process the display module <NUM>.

In the embodiment of the present invention, the outline shapes of the wiring structure <NUM> and the light-shielding layer <NUM> may be disposed flexibly, for example, the outline shapes may be a rectangle, a circle and an ellipse; meanwhile, the shapes of the first light-passing hole and the second light-passing hole may be selected flexibly, for example, the first light-passing hole and the second light-passing hole may be a rectangular hole, a circular hole, an elliptic hole and the like. In an optional embodiment, considering that the shape of the field of view of the camera module <NUM> is usually circular, so in order to adapt to the camera module <NUM> to further increase the screen-to-body ratio of the electronic device, the wiring structure <NUM> and the light-shielding layer <NUM> may be disposed in a ring-shaped structure. At this time, a radial width of the light-shielding layer <NUM> may be smaller than a radial width of the wiring structure <NUM>, so that too large light-shielding area caused by too large radial width of the light-shielding layer <NUM> can be avoided, and the above aim can be fulfilled.

Referring to <FIG>, H is equal to a sum of A and a product of D and two, wherein H is the size of a hole on the appearance surface of the display module <NUM> which cannot be used for displaying, A is a hole diameter of the second light-passing hole (or a hole diameter of the first light-passing hole), and D is a width of the wiring structure <NUM>. The field of view β of the camera module <NUM> is a fixed value, so A is basically a fixed value, and D is basically a fixed value. At this time, the size of H is not affected by the assembling error and other factors, so H may be set smaller.

In order to improve the shooting effect of the camera module <NUM>, a distance between a focus of the camera body <NUM> and the light-shielding layer <NUM> in the optical axis direction may be a preset value. That is, when the position of the light-shielding layer <NUM> changes, the position of the camera body <NUM> changes accordingly to ensure that the focus of the camera body <NUM> and the light-shielding layer <NUM> keep mutually matched positions, so that the shooting effect is improved. In the embodiment of the present invention, since the light-shielding layer <NUM> moves up into the display module <NUM>, the distance between the camera body <NUM> and the display module <NUM> can be further reduced, and the display module <NUM> and the camera module <NUM> are distributed more compact, so that it is more beneficial to stacking of parts in the electronic device.

The forming manner of the light-shielding layer <NUM> has various implementation solutions. In an optional embodiment, the light-shielding layer <NUM> may be formed by a film-coating process. That is, the light-shielding layer <NUM> may be a film-coating structure. This film-coating structure is convenient to form, and the thickness of the formed light-shielding layer <NUM> is smaller, so that it is more beneficial to control the thickness of the electronic device. Specifically, the shielding layer <NUM> is disposed on the surface of the first substrate <NUM> facing away from the second substrate <NUM>, and it may be necessary to disposed other structures on the surface of the first substrate <NUM> facing the second substrate <NUM> through an evaporation process; therefore, the light-shielding layer <NUM> may be coated after the evaporation process and the bonding process of the first substrate <NUM> and the second substrate <NUM> are performed, or the light-shielding layer <NUM> may be coated before the evaporation process and the bonding process of the first substrate <NUM> and the second substrate <NUM> are performed. When the previous implementation manner is adopted, it is necessary to correspondingly add a protection measure for preventing the first substrate <NUM> and the second substrate <NUM> from being scratched. Certainly, the light-shielding layer <NUM> may also be made by other processes, such as a printing process, so that the light-shielding layer <NUM> has a printing structure.

When the electronic device is assembled, the alignment and fixation between the light-shielding layer <NUM> and the camera body <NUM> can be realized through by means of accurately positioning a charge-coupled device (Charge-coupled Device, CCD) camera and driving the camera module <NUM> by a micromotor to dynamically adjust alignment, so that the relative position of the light-shielding layer <NUM> and the camera body <NUM> has higher precision, the imaging effect of the camera module <NUM> is ensured, it is unnecessary to consider the alignment error and increase the size of the first light-passing hole, and the screen-to-body ratio of the electronic device can be increased.

The electronic device disclosed in the embodiments of the present invention may be a smart phone, a tablet computer, an e-book reader, or a wearable device. Certainly, the electronic device may also be other devices, which is not limited in the embodiments of the present invention.

Claim 1:
An electronic device, comprising:
a display module (<NUM>), wherein the display module (<NUM>) comprises a first substrate (<NUM>), a second substrate (<NUM>) and a wiring structure (<NUM>), the first substrate (<NUM>) and the second substrate (<NUM>) are stacked, the wiring structure (<NUM>) is disposed on a surface of the second substrate (<NUM>) facing the first substrate (<NUM>), and the wiring structure (<NUM>) is provided with a first light-passing hole; and
a camera module (<NUM>), wherein the camera module (<NUM>) comprises a camera body (<NUM>) and a light-shielding layer (<NUM>), the camera body (<NUM>) is provided with a light-entrance hole (<NUM>), the second substrate (<NUM>) is located between the first substrate (<NUM>) and the camera body (<NUM>), the light-shielding layer (<NUM>) is disposed on a surface of the first substrate (<NUM>) facing away from the second substrate (<NUM>), the light-shielding layer (<NUM>) is provided with a second light-passing hole;
the first light-passing hole, the second light-passing hole and the light-entrance hole (<NUM>) are arranged in an optical axis direction of the camera module (<NUM>), and orthographic projections of the first light-passing hole and the second light-passing hole on a plane perpendicular to the optical axis direction are within an orthographic projection of the light-entrance hole (<NUM>) on the plane perpendicular to the optical axis direction.