Patent Description:
Generally, a display device includes a circuit board assembly, and the circuit board assembly is used to supply power to the display device and control the operation of the display device. However, during the operation of the display device, the circuit board assembly tends to heat up, and higher temperature will limit the efficient and stable operation of some components, thereby affecting the normal operation of the display device. For this reason, it is necessary to dissipate heat from the circuit board assembly to ensure the normal operation of the display device.

<CIT> relates to heat dissipation from a hand-held portable computer. Heat is removed from a small hand-held portable computer by dissipating the heat from surfaces that are not typically held by the user during hand-held operation. The heat is dissipated from fins located at a rear underside casing of the portable computer. Heat-generating internal electronic components or their heat sinks are placed in close proximity to the fins. Heat may also be dissipated from the backside of the display screen. The dissipation of the heat allows the portable computer to operate at higher frequencies.

<CIT> discloses a display device and a terminal having the same. The terminal includes a base including a circuit board provided therein, and upper and lower housings, a support configured with one side combined with at least a portion of the lower housing and the other side having a head part configured for combination with a main body of a display, a first hole located on the upper housing and configured for combination with the support, and a second hole located on the circuit board and configured for combination with the support.

<CIT> discloses an intelligent display device base and an intelligent display device. The intelligent display equipment base is provided with a front side part and a rear side part. The base at least comprises a first side and a second side. According to the intelligent display equipment base, the first side face is connected with the second side face, the first side face and the second side face are located on the rear side portion, the first side face and the second side face are each provided with a terminal external interface, a plurality of terminal external interfaces can still be placed on the intelligent display equipment base under the condition that the size is small, and data transmission lines, power lines and the like can be plugged and unplugged conveniently.

<CIT> discloses an electronic device including a case, an antenna element, a heat source, a heat dissipation member, a heat conduction member, a cooling fan, an exhaust port, and an exhaust duct. The case has a pair of main surfaces and side surfaces. The antenna element is used to perform wireless communication. The heat dissipation member exchanges heat with a cooling wind. The heat conduction member conducts heat of the heat source to the heat dissipation member. The cooling fan generates the cooling wind to be blown to the heat dissipation member. The exhaust port is an exhaust port from which the cooling wind is discharged to the outside. The exhaust duct guides the cooling wind to the exhaust port. The exhaust port is disposed on one of the side surfaces, and the antenna element and the exhaust duct are disposed to overlap each other at least partially in the thickness direction.

<CIT> discloses a low cost computer is suitable for small size configuration. Casings and are formed by aluminum, which is a heat radiating material, and CPUs, hard disk devices, control ICs and a memory IC are mounted on the casing directly or by the heat radiating material. The casings are utilized as heat radiators, thereby making the entire computer a smaller size.

<CIT> discloses an apparatus for passively cooling electronics. The apparatus for passively cooling electronics includes at least one heat sink configured to be thermally coupled to at least one cabinet. When the at least one cabinet is thermally coupled to the at least one heat sink, the at least one heat sink draws heat from the at least one cabinet.

The present invention provides an improved support assembly for a display device.

Detailed description of the exemplary embodiments will be made herein, with examples thereof to be shown in drawings. In the following descriptions, when the drawings are referred to, unless expressed otherwise, the same number in different drawings refers to the same or similar elements. The embodiments described in the exemplary embodiments as below do not represent all embodiments that are consistent with the present disclosure. On the contrary, they are only examples of the devices and the methods that are consistent with the present invention as recited in the claims.

Terms used herein in the description of the present disclosure are only for the purpose of describing specific embodiments, but should not be construed to limit the present disclosure. Unless otherwise defined, technical terms or scientific terms used herein shall be understood in the ordinary sense as understood by those of ordinary skill in the art to which the present application belongs. The words "a," "an" and the like used in the specification and the claims of the present application are not intended to limit the quantity but indicate the presence of at least one element or device referred to by the words. Unless otherwise indicated, the terms "comprising" or "containing" mean that the elements or articles before the terms "comprising" or "containing" includes the elements or articles listed after the terms "comprising" or "containing" and do not exclude other elements or articles. The terms "connected" or "coupled" and the like are not limited to physical or mechanical connection, but may include electrical connection, regardless of direct connection or indirect connection.

As used in the description of the present disclosure and the appended claims, the terms "a" and "the" in singular forms are intended to include plural forms, unless clearly indicated in the context otherwise. It should also be understood that, as used herein, the term "and/or" represents and contains any one and all possible combinations of COF encapsulation of one or more associated listed items.

<FIG> shows a block diagram of a backplane module of a television (TV) according to an exemplary embodiment of the related art. Referring to <FIG>, the TV includes a display screen (not shown) and a backplane module arranged on the back of the display screen. The backplane module includes a circuit board assembly. The circuit board assembly includes a mainboard and a power supply board that are staggered from each other. Upper and lower areas of the mainboard are heat dissipation hole areas having heat dissipation holes to dissipate heat from the mainboard. Upper and lower areas of the power supply board are heat dissipation hole areas to dissipate heat from the power supply board, and there may be more than one heat dissipation holes in each heat dissipation hole area. If the display screen is made into a transparent display screen, it is necessary to separate the mainboard, the power supply board and other circuit board assemblies from the display screen to ensure a display effect of the transparent display screen. If the mainboard and the power supply board are both arranged in a housing below the display screen, since the mainboard and the power supply board are both assembled in a mounting cavity of the housing, it is necessary to reconsider how to dissipate heat from the circuit board assemblies. Based on this, embodiments of the present invention provide a support assembly for a display device described below with reference to the accompanying drawings.

<FIG> is a structural diagram of a display device according to the present disclosure, and <FIG> is a partial structural diagram of a support assembly according to an exemplary embodiment of the present invention. With reference to <FIG> and <FIG> in combination, a display device according to some embodiments of the present invention includes a display component <NUM> and a support assembly <NUM>.

The display component <NUM> includes a display screen <NUM>. Exemplarily, the display screen <NUM> may be an OLED (organic light-emitting diode) display screen or an LCD (liquid crystal display) display screen. Exemplarily, the display screen <NUM> may be a transparent display screen, which can display a complete image. When no complete image or no image is displayed, the transparent display screen may be in a transparent state. Exemplarily, the display component <NUM> may further include a frame <NUM> arranged at an edge of the display screen <NUM>, and the frame <NUM> protects the display screen <NUM>. Exemplarily, the display component <NUM> may further include a glass cover plate (not shown), which is attached to the display screen <NUM> to improve mechanical strength of the display component <NUM>. The display component <NUM> is assembled to the support assembly <NUM>.

The support assembly <NUM> is applied to the display device, and the support assembly <NUM> includes a housing <NUM>, a circuit board assembly <NUM>, and a heat dissipation assembly <NUM>.

The housing <NUM> supports the display component <NUM>. The housing <NUM> can support the bottom, top or sides of the display component <NUM>. Preferably, the housing <NUM> supports the bottom of the display component <NUM>, so that the support assembly <NUM> is equivalent to a base, which facilitates the placement of the display device. The housing <NUM> includes a mounting cavity <NUM> for assembling components such as the circuit board assembly <NUM>. Exemplarily, the housing <NUM> may be a high-temperature resistant metal housing to facilitate heat conduction and heat dissipation.

The circuit board assembly <NUM> is assembled in the mounting cavity <NUM>. Exemplarily, the circuit board assembly <NUM> is electrically coupled to the display component <NUM> to supply power to the display component <NUM> or control operation of the display component <NUM>. In addition, the circuit board assembly <NUM> is assembled in the mounting cavity <NUM> of the housing <NUM> and separated from the display component <NUM>, so it is beneficial to realizing the transparent display screen.

The heat dissipation assembly <NUM> is assembled to the circuit board assembly <NUM> to dissipate heat from the circuit board assembly <NUM>.

Based on the above, for the support assembly <NUM> and the display device according to the embodiments of the present disclosure, since the heat dissipation assembly <NUM> is assembled to the circuit board assembly <NUM>, the heat from the circuit board assembly <NUM> can be efficiently dissipated, which can ensure efficient and stable operation of the circuit board assembly <NUM> and hence efficient and stable operation of the display device. Moreover, for the display device according to the embodiments of the present invention, since the circuit board assembly <NUM> and the heat dissipation assembly <NUM> are assembled in the mounting cavity <NUM> of the housing <NUM> of the support assembly <NUM>, separated arrangement of the circuit board assembly <NUM>, the heat dissipation assembly <NUM>, and the display component <NUM> can be realized, which helps to achieve a transparent display effect of the display screen <NUM>.

The heat dissipation assembly <NUM> is coupled to the housing <NUM>, and the heat of the circuit board assembly <NUM> is transferred to the housing <NUM> through the heat dissipation assembly <NUM>. In this way, since the heat of the circuit board assembly <NUM> is transferred to the housing <NUM> through the heat dissipation assembly <NUM>, that is, the heat is transferred from a high-temperature area to a low-temperature area, the housing <NUM> is cleverly used to assist heat dissipation to effectively dissipate the heat from the circuit board assembly <NUM> and ensure the efficient and stable operation of the circuit board component <NUM> and thus the efficient and stable operation of the display device.

Continuing to refer to <FIG>, the circuit board assembly <NUM> includes a mainboard <NUM>, the heat dissipation assembly <NUM> includes a mainboard heat dissipation member <NUM>, the mainboard heat dissipation member <NUM> is assembled on the mainboard <NUM>, and one end of the mainboard heat dissipation member <NUM> is coupled to the housing <NUM>. The mainboard <NUM> is used to control the operation of the display device. The mainboard <NUM> has many components thereon and is easy to generate heat. The heat of the mainboard <NUM> is transferred to the housing <NUM> through the mainboard heat dissipation member <NUM>, which can dissipate heat of the mainboard <NUM> and facilitate the efficient and stable operation of the mainboard <NUM>. Exemplarily, the mainboard heat dissipation member <NUM> can be assembled to the mainboard <NUM> by fixing members like screws. Exemplarily, the mainboard heat dissipation member <NUM> can be bonded to the mainboard <NUM> by a thermally conductive adhesive layer, which is not specifically limited in the present disclosure.

<FIG> is a partial structural diagram of the support assembly <NUM> according to an exemplary embodiment of the present disclosure, and <FIG> is a partial structural diagram of the support assembly <NUM> according to an exemplary embodiment of the present disclosure. Referring to <FIG> and <FIG>, the housing <NUM> includes a first connecting portion <NUM>, and one end of the mainboard heat dissipation member <NUM> is coupled to the first connecting portion <NUM>. In this way, it is convenient to connect the mainboard heat dissipation member <NUM> and the mainboard <NUM>. It should be noted that the first connecting portion <NUM> may be any first connecting portion <NUM> that is relatively close to the mainboard heat dissipation member <NUM>. Exemplarily, the mainboard heat dissipation member <NUM> and the first connecting portion <NUM> are in direct contact with each other and are not fixedly connected through other components. Exemplarily, the mainboard heat dissipation member <NUM> may be fixed to the first connecting portion <NUM> by fixing members (such as screws) or a thermally conductive adhesive layer. Continuing to refer to <FIG>, the first connecting portion <NUM> is a first convex portion <NUM> formed in such a way that a wall of the housing <NUM> protrudes toward the mounting cavity <NUM>, and correspondingly, a mounting groove is formed on an outer side of the first convex portion <NUM>, to assemble control buttons and other components. Exemplarily, the first connecting portion <NUM> may also be a first connecting wall that protrudes into the mounting cavity <NUM>.

The mainboard heat dissipation member <NUM> can be designed in various structures. In some embodiments, the mainboard heat dissipation member <NUM> includes at least one heat dissipation portion, one end of the heat dissipation portion is assembled to the mainboard <NUM>, and the other end of the heat dissipation portion is coupled to the first connecting portion <NUM>. It can be understood that when the mainboard heat dissipation member <NUM> includes one or more heat dissipation portions, both ends of one heat dissipation portion may be coupled to the mainboard <NUM> and the first connecting portion <NUM> respectively. Alternatively, one of more than one heat dissipation portions is assembled to the mainboard <NUM>, and the other heat dissipation portions are coupled to the first connecting portion <NUM>.

<FIG> is a structural diagram of a mainboard heat dissipation member <NUM> and a mainboard <NUM> after being assembled, according to an exemplary embodiment of the present disclosure. Referring to <FIG> and <FIG> in combination, the mainboard heat dissipation member <NUM> includes a first heat dissipation portion <NUM>, a second heat dissipation portion <NUM>, and a third heat dissipation portion <NUM> that are sequentially connected. The first heat dissipation portion <NUM> is assembled on the mainboard <NUM>, the second heat dissipation portion <NUM> extends towards the first connecting portion <NUM>, and the third heat dissipation portion <NUM> is coupled to the first connecting portion <NUM>. In this way, the heat of the mainboard <NUM> is transferred to the housing <NUM> through cooperation among the first heat dissipation portion <NUM>, the second heat dissipation portion <NUM>, and the third heat dissipation portion <NUM>, which can also lengthen the length of the mainboard heat dissipation member <NUM> and facilitate absorption and transmission of more heat by the mainboard heat dissipation member. In addition, since the third heat dissipation portion <NUM> is coupled to the first connecting portion <NUM>, it also helps to stabilize positions of the mainboard heat dissipation member <NUM> and the mainboard <NUM>. Moreover, the mainboard heat dissipation member <NUM> can make full use of limited space within the housing <NUM>, which can improve the integration level of components in the housing <NUM>. The first heat dissipation portion <NUM> and the third heat dissipation portion <NUM> are parallel, and an angle formed between the second heat dissipation portion <NUM> and the first heat dissipation portion <NUM> is <NUM>°~<NUM>°. In this way, the mainboard heat dissipation member <NUM> forms a "Z-shaped" structure. The third heat dissipation portion <NUM> is coupled to the first connecting portion <NUM>, and the second heat dissipation portion <NUM> is in contact with a side wall of the first connecting portion <NUM>, such that a contact area between the mainboard heat dissipation member <NUM> and the housing <NUM> can be increased, and the mainboard heat dissipation member <NUM> can effectively transfer the heat of the mainboard <NUM> to the housing <NUM>. Exemplarily, referring to <FIG>, the first heat dissipation portion <NUM> can be provided with more than one heat dissipation fins <NUM>, such that the heat of the mainboard <NUM> can be effectively dissipated by more than one heat dissipation fins <NUM>. Exemplarily, more than one heat dissipation fins <NUM> are arranged in parallel, and the heat dissipation fins <NUM> are perpendicular to a board surface of the mainboard <NUM>, which can not only facilitate the arrangement, but also facilitate heat transfer through gaps among more than one heat dissipation fins <NUM>.

In some embodiments, the material of at least one of the heat dissipation portion <NUM>, the first heat dissipation portion <NUM>, the second heat dissipation portion <NUM>, and the third heat dissipation portion <NUM> is a metal material. In this way, the mainboard heat dissipation member <NUM> can absorb and transfer heat, and due to strong ductility of the metal material, the mainboard heat dissipation member <NUM> can be conveniently processed into different structures, thereby facilitating adaptation to a small-volume mounting cavity.

In some embodiments, continuing to refer to <FIG>, and <FIG>, the circuit board assembly <NUM> includes a logic board <NUM>, the heat dissipation assembly <NUM> includes a logic board heat-dissipation member <NUM>, the logic board heat-dissipation member <NUM> is assembled to the logic board <NUM>, and one end of the logic board heat-dissipation member <NUM> is coupled to the housing <NUM>. The logic (T-CON, Timing Controller) board <NUM> is used to: sequentially control signals sent by the mainboard <NUM> on the logic board <NUM> and convert them into drive signals to drive the display component <NUM> to work. The logic board <NUM> tends to generate heat during operation of the display component <NUM>, and the heat of the logic board <NUM> is dissipated by the logic board heat-dissipation member <NUM>, which can facilitate the efficient and stable operation of the logic board <NUM>. Exemplarily, the logic board heat-dissipation member <NUM> may be fixed to the logic board <NUM> by a fixing member. Exemplarily, the logic board heat-dissipation member <NUM> may be bonded to the logic board <NUM> through a thermally conductive adhesive layer, which is not specifically limited in the present disclosure.

In some embodiments, continuing to refer to <FIG> and <FIG>, the housing <NUM> includes a second connecting portion <NUM>, and one end of the logic board heat-dissipation member <NUM> is coupled to the second connecting portion <NUM>. It should be noted that a distance between the logic board heat dissipation member <NUM> and the second connecting portion <NUM> is not limited in the present disclosure, and the second connecting portion <NUM> may be a second convex portion or second connecting wall <NUM> that is relatively close to the logic board heat dissipation member <NUM>. The second convex portion protrudes from an inner wall of the housing <NUM> towards the mounting cavity <NUM>, and the second connecting wall protrudes from the inner wall of the housing <NUM> towards the mounting cavity <NUM>. In this way, the logic board heat-dissipation member <NUM> transfers the heat of the logic board <NUM> to the housing <NUM>. Exemplarily, the logic board heat-dissipation member <NUM> is in contact with the second connecting portion <NUM>. Exemplarily, the logic board <NUM> and the second connecting portion <NUM> are connected by a thermally conductive glue or a fixing member.

In some embodiments, the first connecting portion <NUM> and the second connecting portion <NUM> may be arranged on the housing <NUM> in a separated manner. In other words, the first connecting portion <NUM> and the second connecting portion <NUM> are separately arranged in different areas of the housing <NUM>. In this way, the mainboard heat dissipation member <NUM> transfers heat to the first connecting portion <NUM>, and the logic board heat-dissipation member <NUM> transfers heat to the second connecting portion <NUM>, which can allow different areas of the housing <NUM> to receive heat respectively and facilitate efficient heat dissipation for the circuit board assembly. Exemplarily, the first connecting portion <NUM> and the second connecting portion <NUM> may be arranged oppositely. For example, in <FIG>, the first convex portion <NUM> and the second connecting wall <NUM> are arranged oppositely.

In some embodiments, the logic board heat-dissipation member <NUM> includes a graphite sheet for absorbing heat from the logic board <NUM> and conducting the heat. Exemplarily, the area of the logic board <NUM> is smaller than the area of the mainboard <NUM>. Typically, graphite can be processed into a sheet structure, which is more suitable for the logic board <NUM> with a smaller area compared with the mainboard <NUM>. In addition, the logic board heat-dissipation member <NUM> may also include metal heat dissipation fins.

In some embodiments, continuing to refer to <FIG>, the housing <NUM> includes a first surface <NUM> and a second surface <NUM> opposite to the first surface <NUM>. The display component <NUM> is located on one side of the first surface <NUM>, the mainboard <NUM> and the logic board <NUM> are both arranged towards the first surface <NUM>, and one of the mainboard <NUM> and the logic board <NUM> is close to the first surface <NUM> relative to the other. In other words, for example as shown in <FIG>, the mainboard <NUM> and the logic board <NUM> are arranged along an up-down direction. As a result, it is beneficial to reducing the space occupied by the circuit board assembly <NUM> and improving the integration level of the support assembly <NUM>. Exemplarily, the logic board <NUM> may be arranged between the mainboard <NUM> and the first surface <NUM>. In <FIG>, the logic board <NUM> is arranged above the mainboard <NUM>. In this way, when the mainboard heat dissipation member <NUM> includes the first heat dissipation portion <NUM>, the second heat dissipation portion <NUM>, and the third heat dissipation portion <NUM>, the logic board <NUM> can be assembled in a space formed by the first heat dissipation portion <NUM> and the second heat dissipation portion <NUM>, which is beneficial to improving the integration level of the support assembly <NUM>. In addition, the mainboard <NUM> may also be arranged between the logic board <NUM> and the first surface <NUM>.

In some embodiments, continuing to refer to <FIG>, the circuit board assembly <NUM> further includes a power supply board <NUM> arranged towards the first surface <NUM>, and one of the power supply board <NUM> and the mainboard <NUM> is close to the first surface <NUM> relative to the other. In this way, since the power supply board <NUM> supplies power to the display component <NUM> and the mainboard <NUM>, the length of cables between the mainboard <NUM> and the logic board <NUM> and the display component <NUM> can be shortened, which is beneficial to improving the integration level of the support assembly <NUM>. Exemplarily, the power supply board <NUM> is arranged between the mainboard <NUM> and the second surface <NUM>, and the logic board <NUM> may be arranged between the mainboard <NUM> and the first surface <NUM>. In the embodiment of the present disclosure, continuing to refer to <FIG>, at least one of the mainboard <NUM>, the logic board <NUM>, and the power supply board <NUM> may be fixedly assembled in the mounting cavity <NUM> of the housing <NUM> through components such as a strut assembly <NUM>, and the support assembly <NUM> may include more than one supports. The mainboard <NUM> and the logic board <NUM> can be fixedly connected and the mainboard <NUM> and the power supply board <NUM> can also be fixedly connected, by components such as the strut assemblies <NUM>.

In some embodiments, a wall of the housing <NUM> is provided with more than one heat dissipation holes <NUM> in communication with the mounting cavity <NUM>, so that air can circulate in the mounting cavity <NUM> of the housing <NUM> to take away heat. Exemplarily, more than one heat dissipation holes <NUM> are evenly arranged on the wall of the housing <NUM>, and a part of the heat dissipation holes <NUM> are arranged opposite to another part of the heat dissipation holes <NUM>. For example, both the first surface <NUM> and a side surface <NUM> of the housing <NUM> may be provided with the heat dissipation holes <NUM>. In this way, the heat of the circuit board assembly <NUM> is transferred to the housing <NUM> through the heat dissipation assembly <NUM>, and convection is formed in the mounting cavity <NUM> of the housing <NUM> through the heat dissipation holes <NUM>, to effectively improve the heat dissipation effect, which is conducive to high integration and effective heat dissipation for the circuit board assembly <NUM> in the narrow and small space of the housing <NUM>.

In some embodiments, referring to <FIG> and <FIG> in combination, a groove <NUM> is provided on the housing <NUM> of the support assembly <NUM>, and the display screen is arranged in the groove <NUM> of the support assembly <NUM>. In this way, the display component <NUM> is supported by the housing <NUM>. Exemplarily, the groove <NUM> is provided with an interface, and the interface is coupled to the circuit board assembly <NUM> through a cable. After the display component <NUM> is assembled in the groove <NUM>, the display component <NUM> is electrically coupled to the interface. Exemplarily, the housing <NUM> may include two half-housings arranged opposite to each other. The two half-housings cooperate to form the groove <NUM>, and each half-housing may be provided with a second connecting portion <NUM> protruding into the mounting cavity <NUM>. The two second connecting portions <NUM> of the two half-housings may be two parallel second connecting walls <NUM>, and the two second connecting walls <NUM> cooperate to form the groove <NUM>. One of the second connecting portions <NUM> can be coupled to the aforementioned logic board heat-dissipation member <NUM>.

In some embodiments, the mounting cavity includes at least two areas, i.e., a first area and a second area; the mainboard, the logic board, and the power supply board are all arranged in the first area of the mounting cavity; an audio component is arranged in the second area.

In this way, there is no need to arrange any audio component in the display component, which is beneficial to achieving a display effect with a high screen-to-body ratio.

In some embodiments, at least two of the mainboard, the logic board, and the power supply board are arranged in a staggered manner or on a common plane.

In some embodiments, at least one of the mainboard, the logic board, and the power supply board is arranged parallel to a bottom wall of the groove.

In some embodiments, the display device includes a transparent television.

In addition, the display device may also be other devices including the display component <NUM>. For example, a display screen of a notebook computer may be a transparent display screen.

In some embodiments, more than one supports are provided in the mounting cavity to support the mainboard, the logic board, and the power supply board.

For example, a first support, a second support and/or a third support are provided in the mounting cavity; the first support is coupled to the housing and used to support the mainboard; the second support is coupled to the housing and used to support the power supply board; the third support is used to provide support between the mainboard and the power supply board or between the mainboard and the logic board.

In summary, for the support assembly <NUM> and the display device according to embodiments of the present invention, the mainboard heat dissipation member <NUM> is assembled to the mainboard <NUM>, one end of the mainboard heat dissipation member <NUM> is coupled to the first connecting portion <NUM> of the housing <NUM>, and the mainboard heat dissipation member <NUM> is made of the metal material, so that the heat of the mainboard <NUM> can be transferred to the housing <NUM> to dissipate heat of the mainboard <NUM>. The logic board heat-dissipation member <NUM> is assembled to the logic board <NUM>, one end of the logic board <NUM> is coupled to the second connecting portion <NUM> of the mounting cavity <NUM> of the housing <NUM>, and the logic board <NUM> is a graphite sheet, such that the heat of the logic board <NUM> can be transferred to the housing <NUM>. The mainboard heat dissipation member <NUM> and the logic board heat-dissipation member <NUM> cooperate, and the housing <NUM> is used cleverly to assist in heat dissipation, to effectively dissipate the heat of the circuit board assembly <NUM>. Moreover, in combination with the heat dissipation holes <NUM> to form air convection, it is more conducive to heat dissipation of the circuit board assembly <NUM> in the narrow and small space of the housing <NUM>, ensuring the efficient and stable operation of the circuit board assembly <NUM>. In addition, the logic board <NUM>, the mainboard <NUM>, and the power supply board <NUM> can be arranged in a stacked manner, which is beneficial to improving the integration level. Since the circuit board assembly <NUM> and the heat dissipation assembly <NUM> are assembled in the mounting cavity <NUM> of the housing <NUM> of the support assembly <NUM>, the separation of the circuit board assembly <NUM>, the heat dissipation assembly <NUM>, and the display component <NUM> can be achieved, which is beneficial to realizing the transparent display effect of the display screen <NUM>.

Claim 1:
A support assembly (<NUM>) configured to support a display component (<NUM>), and comprising:
a housing (<NUM>) comprising a mounting cavity (<NUM>);
a circuit board assembly (<NUM>) assembled in the mounting cavity (<NUM>); and
a heat dissipation assembly (<NUM>) assembled to the circuit board assembly (<NUM>),
wherein the circuit board assembly (<NUM>) comprises a mainboard (<NUM>), the heat dissipation assembly (<NUM>) comprises a mainboard heat dissipation member (<NUM>), and the mainboard heat dissipation member (<NUM>) is assembled to the mainboard (<NUM>),
characterized in that
the mainboard heat dissipation member (<NUM>) comprises a first heat dissipation portion (<NUM>), a second heat dissipation portion (<NUM>), and a third heat dissipation portion (<NUM>) that are sequentially connected, and forms a Z-shaped structure;
the first heat dissipation portion (<NUM>) is assembled to the mainboard (<NUM>), the second heat dissipation portion (<NUM>) extends towards a first connecting portion (<NUM>) of the housing (<NUM>) and is in contact with a side wall of the first connecting portion (<NUM>), and the third heat dissipation portion (<NUM>) is coupled to the first connecting portion (<NUM>); and
the first connecting portion (<NUM>) is a first convex portion (<NUM>) formed in such a way that a wall of the housing (<NUM>) protrudes toward the mounting cavity (<NUM>), and correspondingly, a mounting groove is formed on an outer side of the first convex portion (<NUM>), to assemble control buttons and other components.