Patent Description:
A 3C-type electronic mobile terminal such as a cellular phone or a flat-panel display is generally provided with two devices as follow:.

In actual application, the infrared photosensitive device may also sense a light intensity of environment in which the mobile terminal is located, and transmit a signal related to the light intensity to a Central Processing Unit (CPU) of the mobile terminal. The processor controls a brightness value of the screen so that the light intensity is in direct proportion to the brightness value of the screen.

The camera may be connected with a main circuit board of the mobile terminal through a Board-to-Board (BTB) connector. The infrared photosensitive device may be connected with the main circuit board through surface mounting technology or BTB connection technology. Due to a limited space resource of the main circuit board, how to appropriately set the camera, the infrared photosensitive device, the BTB connector and other elements so as to improve a spatial utilization rate for the limited space resource of the main circuit board becomes a problem interested by one skilled in the art.

Document <CIT> discloses an electronic device including a housing, a first guide plate, a second light guide plate, and a first adhesive member. A first hole corresponding in position to a first light-emitting source and a second hole corresponding in position to a second light-emitting source are formed on the housing. The first light guide plate has a first projection to be inserted into the first hole. The second light guide plate has a main-body plate portion to be superposed on the first light guide plate and a second projection to be inserted into the second hole. The second light guide plate blocks out the light of the first light-emitting source with the main-body plate portion. The first adhesive member attaches the main-body plate portion to the housing.

Document <CIT> discloses a receiver with proximity sensor and a method of making the receiver.

A mobile terminal as defined in accompanying claims are provided in the present disclosure so as to solve a problem in a related mobile terminal that arrangement of devices in the mobile terminal occupies a large footprint on the main circuit board, and a limited space resource on the main circuit board is wasted.

It may be seen from the above that, in the mobile terminal provided in some embodiments of the present disclosure, an infrared photosensitive assembly is set on a camera Board-to-Board connector assembly; and a main circuit board of the mobile terminal is connected with the camera Board-to-Board connector assembly set with the infrared photosensitive assembly, so that the infrared photosensitive assembly is electrically connected with the main circuit board through the camera Board-to-Board connector assembly. Thus, footprints occupied by internal devices in the mobile terminal are reduced by stacking the internal devices, and the limited space resource on the main circuit board in the mobile terminal is saved, and miniaturization of the mobile terminal may be facilitated.

In order to illustrate technical solutions of embodiments of the present disclosure more clearly, drawings used in description of the embodiments will be introduced hereinafter briefly. Obviously, the following drawings merely relate to some embodiments of the present disclosure, and based on these drawings, a person skilled in the art may obtain other drawings without any creative effort.

In order to make technical solutions and advantages of the embodiments of the present disclosure, the technical solutions of the embodiments of the present disclosure will be described hereinafter clearly and completely in combination with the drawings of the embodiments of the present disclosure. Obviously, the described embodiments of the present disclosure are a part, not all, of the embodiments of the present disclosure. All other embodiments obtained by one skilled in the art based the described embodiments of the present disclosure fall within the scope of the present disclosure.

Unless otherwise defined, any technical or scientific term used herein shall have a common meaning understood by a person of ordinary skills in the art wo which the present disclosure belongs. Such words as "first", "second", or the like used in the description and claims of the present disclosure are not used to represent any order, number or importance, but merely used to differentiate different components. Similarly, such words as "one element" or "one of the elements" are not intended to limit the quantity of the element, but represent existence of at least one element. Such words as "connect/connected with" or "couple/coupled to" are not intended to be limited to physical connections or mechanical connections, but may include an electrical connection, whether the connection is a direct connection or an indirect direction. Such words as "above", "under", "left" and "right" are merely used to represent relative position relationship, and when an absolute position of a described object is changed, the relative position relationship is also changed.

Some embodiments of the present disclosure provide a mobile terminal <NUM>. As shown in <FIG>, the mobile terminal <NUM> includes a camera assembly <NUM>, a camera Board-to-Board (BTB) connector assembly <NUM>, an infrared photosensitive assembly <NUM>, and a main circuit board <NUM>. The infrared photosensitive assembly <NUM> is set on the camera BTB connector assembly <NUM>, and is electrically connected with the main circuit board <NUM> through the camera BTB connector assembly <NUM>.

Since the infrared photosensitive assembly <NUM> and the camera BTB connector assembly <NUM> are stacked in the mobile terminal <NUM> provided in some embodiments of the present disclosure, compact arrangement of internal devices in the mobile terminal <NUM> is achieved, a spatial utilization of the main circuit board <NUM> of the mobile terminal <NUM> is improved, and miniaturization of the mobile terminal <NUM> may be facilitated.

The camera assembly disclosed in some embodiments of the present disclosure may be a camera assembly, performance of which is mature and reliable.

Some examples of the present disclosure further provide a method for manufacturing the mobile terminal <NUM>. As shown in <FIG>, the method may include Steps <NUM>-<NUM>.

Step <NUM>:setting the infrared photosensitive assembly <NUM> on the camera BTB connector assembly <NUM>.

Step <NUM>: connecting the main circuit board <NUM> of the mobile terminal <NUM> with the camera BTB connector assembly <NUM> provided with the infrared photosensitive assembly <NUM>, so that the infrared photosensitive assembly <NUM> is electrically connected with the main circuit board <NUM> through the camera BTB connector assembly <NUM>.

Since the infrared photosensitive assembly <NUM> and the camera BTB connector assembly <NUM> are stacked using the method for manufacturing the mobile terminal provided in some embodiments of the present disclosure, the compact arrangement of the internal devices in the mobile terminal <NUM> is achieved, the spatial utilization of the main circuit board <NUM> of the mobile terminal <NUM> is improved, and the miniaturization of the mobile terminal <NUM> may be facilitated.

Some embodiments of the present disclosure provide a mobile terminal <NUM>. As shown in <FIG>, the mobile terminal <NUM> may specifically include a camera assembly <NUM>, a camera BTB connector assembly, an infrared photosensitive assembly and a main circuit board <NUM>.

As shown in <FIG>, the camera BTB connector assembly involved in the present disclosure may specifically include a camera BTB connector <NUM> set at a predetermined position of the main circuit board <NUM>; and a camera BTB connector Printed Circuit Board (PCB) <NUM> set on the camera BTB connector <NUM>. The infrared photosensitive assembly is set on the camera BTB connector PCB <NUM>, and the camera BTB connector PCB <NUM> is electrically connected with the camera assembly <NUM>.

Optionally, the infrared photosensitive assembly may be set on the camera BTB connector PCB <NUM> through surface mounting technology (SMT), and may be electrically connected with the main circuit board <NUM> through the camera BTB connector PCB <NUM> and the camera BTB connector <NUM>.

Optionally, the camera assembly <NUM> may be electrically connected with the camera BTB connector PCB <NUM> through a flexible circuit board or a lead.

As shown in <FIG>, the infrared photosensitive assembly may specifically include: a raised circuit board <NUM> set on, and electrically connected with, the camera BTB connector PCB <NUM>; and an infrared photosensitive device <NUM> set on the raised circuit board <NUM>.

In a design for an internal structure of the mobile terminal, a distance between an upper surface of the camera BTB connector PCB <NUM> and an inner surface of a glass cover plate <NUM> is generally long, and a height (or thickness) of the infrared photosensitive device <NUM> is relatively small. However, for purpose of normal operation of the infrared photosensitive device <NUM>, a short distance between the infrared photosensitive device <NUM> and the glass cover plate <NUM> should be small. Therefore, the raised circuit board <NUM> having a certain height (or thickness) may be provided at a bottom of the infrared photosensitive device <NUM> in the present disclosure. In this way, not only the infrared photosensitive device <NUM> may be electrically connected with the camera BTB connector PCB <NUM>, but also the distance between the infrared photosensitive device <NUM> and the glass cover plate <NUM> may be shortened in accordance with an entire inner spatial environment of the mobile terminal <NUM>, so as to achieve the normal operation of the infrared photosensitive device <NUM>.

A corresponding type of the infrared photosensitive device <NUM> involved in some embodiments of the present disclosure may be selected in accordance with practical needs.

Since the infrared photosensitive assembly and the camera BTB connector assembly stacked in the mobile terminal <NUM> provided in some embodiments of the present disclosure, the compact arrangement of the internal devices in the mobile terminal <NUM> is achieved, the spatial utilization of the main circuit board of the mobile terminal <NUM> is improved, and the miniaturization of the mobile terminal <NUM> may be facilitated.

Some examples of the present disclosure further provide a method for manufacturing the mobile terminal <NUM> shown in <FIG>. As shown in <FIG>, the method may include steps <NUM>-<NUM>.

Step <NUM>: setting the infrared photosensitive device <NUM> on the raised circuit board <NUM> using the SMT technology so as to form the infrared photosensitive assembly.

Step <NUM>:setting the infrared photosensitive assembly on the camera BTB connector PCB <NUM> using the SMT technology.

<FIG> shows an implementation process of the method for manufacturing the mobile terminal.

Step <NUM>: connecting the main circuit board <NUM> of the mobile terminal <NUM> with the camera BTB connector assembly set with the infrared photosensitive assembly, during an assembly process for producing of the mobile terminal. For example, the camera BTB connector assembly set with the infrared photosensitive assembly may be connected with the main circuit board <NUM> in a buckling manner, so that the infrared photosensitive assembly may be electrically connected with the main circuit board <NUM> through the camera BTB connector assembly, and relevant control functions may be achieved.

Since the infrared photosensitive assembly and the camera BTB connector assembly are stacked using the method for manufacturing the mobile terminal provided in some embodiments of the present disclosure, the compact arrangement of the internal devices in the mobile terminal <NUM> is achieved, the spatial utilization of the main circuit board <NUM> of the mobile terminal <NUM> is improved, and the miniaturization of the mobile terminal <NUM> may be facilitated.

Some embodiments of the present disclosure further provide a mobile terminal <NUM>. As shown in <FIG>, the mobile terminal <NUM> may specifically include a camera assembly <NUM>, a camera BTB connector assembly, an infrared photosensitive assembly and a main circuit board <NUM>.

As shown in <FIG>, the camera BTB connector assembly involved in the the present disclosure may include: a camera BTB connector <NUM> set at a predetermined position of the main circuit board <NUM>; and a camera BTB connector PCB <NUM> set on the camera BTB connector <NUM>. The infrared photosensitive assembly is set on the camera BTB connector PCB <NUM>, and the camera assembly <NUM> is electrically connected with the camera BTB connector PCB <NUM>.

As shown in <FIG>, the infrared photosensitive assembly may specifically include a flexible circuit board <NUM>, a reinforcement plate <NUM> and an infrared photosensitive device <NUM>.

Optionally, the flexible circuit board <NUM> may specifically include a first portion for connecting to the camera BTB connector PCB <NUM>, a second portion for setting the infrared photosensitive device <NUM>, and a third portion for connecting the first portion with the second portion. The first portion is set on the camera BTB connector PCB <NUM>. The reinforcement plate <NUM> is set on the first portion. The second portion is set on the reinforcement plate <NUM>. The infrared photosensitive device <NUM> is set on the second portion. The third portion is set at a side of the reinforcement plate <NUM> in a horizontal direction.

Optionally, the flexible circuit board <NUM> may be connected with the reinforcement plate <NUM> through an adhesive. The adhesive may achieve two purposes. One of the purposes is to improve a yield of the infrared photosensitive device 733duringa SMT process by adhering the reinforcement plate; and the other of the purposes is to raise the infrared photosensitive device 733properly so that the distance between the infrared photosensitive device <NUM> and the glass cover plate <NUM> is appropriate.

Since the infrared photosensitive assembly and the camera BTB connector assembly are stacked in the mobile terminal 70provided in some embodiments of the present disclosure, the compact arrangement of the internal devices in the mobile terminal <NUM> is achieved, the spatial utilization of the main circuit board <NUM> of the mobile terminal <NUM> is improved, and the miniaturization of the mobile terminal <NUM> may be facilitated.

Some embodiments of the present disclosure provide a method for manufacturing the mobile terminal <NUM> shown in <FIG>. As shown in <FIG>, the method may specifically include steps <NUM>-<NUM>.

Step <NUM>: adhering a second side surface of the first portion of the flexible circuit board <NUM> included in the infrared photosensitive assembly to a first side surface of the reinforcement plate <NUM> included in the infrared photosensitive assembly, and setting the infrared photosensitive device <NUM> included in the infrared photosensitive assembly on a first side surface of the first portion of the flexible circuit board <NUM> by using the SMT technology. The first side surface of the first portion of the flexible circuit board <NUM> is a back surface opposite to the second side surface of the first portion of the flexible circuit board <NUM>.

<FIG> shows a schematic diagram of the implementation process of this step.

Step <NUM>: connecting a first side surface of the second portion of the flexible circuit board <NUM> with the camera BTB connector PCB <NUM> included in the camera BTB connector assembly through an ACF pressing process. The first side surface of the second portion of the flexible circuit board <NUM> and the first side surface of the first portion of the flexible circuit board <NUM> are a same side surface of the flexible circuit board <NUM>.

Step <NUM>: bending the third portion of the flexible circuit board <NUM> along a bending central line of the third portion of the flexible circuit board <NUM> (indicated by a dotted line in <FIG>), so that the second side surface of the second portion of the flexible circuit board <NUM> is adhered to a second side surface of the reinforcement plate <NUM>. The second side surface of the second portion of the flexible circuit board <NUM> is a back surface opposite to the first side surface of the second portion of the flexible circuit board <NUM>, and the second side surface of the reinforcement plate <NUM> is a back surface opposite to the first side surface of the reinforcement plate <NUM>.

The "adhering" involved in the present disclosure is shown in <FIG>, and may be implemented through applying a double-sided adhesive <NUM> at a position where two devices are in contact with each other.

Step <NUM>: connecting the main circuit board <NUM> of the mobile terminal <NUM> with the camera BTB connector assembly set with the infrared photosensitive assembly. For example, the camera BTB connector assembly set with the infrared photosensitive assembly may be connected with the main circuit board <NUM> in the buckling manner, so that the infrared photosensitive assembly is electrically connected with the main circuit board <NUM> through the camera BTB connector assembly, and the relevant control functions may be achieved.

Since the infrared photosensitive assembly on the camera BTB connector assembly are stacked using the method for manufacturing the mobile terminal provided in some embodiments of the present disclosure, the compact arrangement of the internal devices in the mobile terminal <NUM> is achieved, the spatial utilization of the main circuit board <NUM> of the mobile terminal <NUM> is improved, and the miniaturization of the mobile terminal <NUM> may be facilitated.

As shown in <FIG>, the camera BTB connector assembly involved in the present disclosure may specifically include: a camera BTB connector <NUM> set at a predetermined position of the main circuit board <NUM>; a camera BTB connector flexible circuit board (FCB) <NUM> set on the camera BTB connector <NUM>, wherein the camera BTB connector FCB <NUM> may specifically include a first portion for connecting to the camera BTB connector <NUM>, a second portion for setting the infrared photosensitive assembly, and a third portion connecting the first portion with the second portion, and a fourth portion for connecting to the camera assembly <NUM>; and a camera BTB connector circuit board <NUM> set on the first portion of the camera BTB connector FCB <NUM>.

As shown in <FIG>, the infrared photosensitive assembly may specifically include a reinforcement plate <NUM> and an infrared photosensitive device <NUM>. The reinforcement plate <NUM> is set on the camera BTB connector circuit board <NUM>, and the second portion of the camera BTB connector FCB <NUM> is set on the reinforcement plate <NUM>. The infrared photosensitive device <NUM> is set on the second portion of the camera BTB connector FCB <NUM>.

Since the infrared photosensitive assembly and the camera BTB connector assembly are stacked in the mobile terminal <NUM> provided in some embodiments of the present disclosure, the compact arrangement of the internal devices in the mobile terminal <NUM> is achieved, the spatial utilization of the main circuit board <NUM> of the mobile terminal <NUM> is improved, and miniaturization of the mobile terminal <NUM> may be facilitated.

Some examples of the present disclosure provide a method for manufacturing the mobile terminal <NUM> shown in <FIG>. As shown in <FIG>, the method may include steps <NUM>-<NUM>.

Step <NUM>: adhering a first side surface of the reinforcement plate <NUM> included in the infrared photosensitive assembly to a second side surface of the second portion of the camera BTB connector FCB <NUM>, and setting the infrared photosensitive device <NUM> included in the infrared photosensitive assembly on a first side surface of the second portion of the camera BTB connector FCB <NUM> by using the SMT technology. The first side surface of the second portion of the camera BTB connector FCB <NUM> is a back surface opposite to the second side surface of the second portion of the camera BTB connector FCB <NUM>.

Step <NUM>: bending the third portion of the camera BTB connector FCB <NUM> along a bending central line of the third portion of the camera BTB connector FCB <NUM>, so that a second side surface of the reinforcement plate <NUM> is adhered to the camera BTB connector circuit board <NUM>. The second side surface of the reinforcement plate <NUM> is a back surface opposite to the first side surface of the reinforcement plate <NUM>.

Step <NUM>: connecting the main circuit board <NUM> of the mobile terminal <NUM> with the camera BTB connector assembly <NUM> set with the infrared photosensitive assembly <NUM>. For example, the camera BTB connector assembly <NUM> set with the infrared photosensitive assembly 133may be connected with the main circuit board <NUM> in the buckling manner, so that the infrared photosensitive assembly <NUM> may be electrically connected with the main circuit board <NUM> through the camera BTB connector assembly <NUM>, and the relevant control functions are achieved.

Claim 1:
A mobile terminal, comprising:
a camera assembly (<NUM>, <NUM>, <NUM>, <NUM>), a camera Board-to-Board connector assembly (<NUM>), an infrared photosensitive assembly (<NUM>) and a main circuit board (<NUM>, <NUM>, <NUM>, <NUM>),
wherein the infrared photosensitive assembly (<NUM>) is set on the camera Board-to-Board connector assembly (<NUM>), and is electrically connected with the main circuit board (<NUM>) through the camera Board-to-Board connector assembly (<NUM>);
characterized in that,
the camera Board-to-Board connector assembly (<NUM>) comprises:
a camera Board-to-Board connector (<NUM>, <NUM>) set at a predetermined position of the main circuit board (<NUM>, <NUM>), and
a camera Board-to-Board connector circuit board (<NUM>, <NUM>) set on the camera Board-to-Board connector (<NUM>, <NUM>), wherein the infrared photosensitive assembly (<NUM>) is set on the camera Board-to-Board connector circuit board (<NUM>, <NUM>), and the camera Board-to-Board connector circuit board (<NUM>, <NUM>) is electrically connected with the camera assembly (<NUM>, <NUM>);
or,
the camera Board-to-Board connector assembly (<NUM>) comprises:
a camera Board-to-Board connector (<NUM>) set at a predetermined position of the main circuit board (<NUM>);
a camera Board-to-Board connector flexible circuit board (<NUM>) set on the camera Board-to-Board connector (<NUM>), wherein the camera Board-to-Board connector flexible circuit board (<NUM>) comprises a first portion for connecting to the camera Board-to-Board connector (<NUM>), a second portion for setting the infrared photosensitive assembly (<NUM>), a third portion for connecting the first portion with the second portion, and a fourth portion for connecting to the camera assembly (<NUM>); and
a camera Board-to-Board connector circuit board (<NUM>) set on the first portion of the camera Board-to-Board connector flexible circuit board (<NUM>).