Dual-display apparatus

Abstract

Disclosed is a dual display apparatus comprising a housing (101). The housing comprises a display portion (102A) and a base portion (102B), wherein the display portion comprises a first display arrangement (104), a second display arrangement (114), a heat exchanger (110), and a first air channel (120) for enabling an ambient airflow (122) therein. The base portion comprises an electronic box (123), occupying a part of the base portion such that a second air channel (130) is formed between the electronic box and the second side (101B) of the housing, a fan array (118), and characterized in that a perforated bracket (124) configured to prevent choking of the ambient airflow at the second air channel, wherein the perforated bracket comprises an inlet side (126) and an outlet side (128), such that the ambient airflow maintains laminar flow while exiting the outlet side of the perforated bracket.

Description

[0001] DUAL-DISPLAY APPARATUS

[0002] TECHNICAL FIELD

[0003] The present disclosure relates to heat transfer systems and more specifically to a dual-display apparatus.

[0004] BACKGROUND

[0005] Electronic advertising displays are being used increasingly. They are used in outdoor as well as indoor venues; in locations such as traditional roadside and city centre billboard locations, travel environments (e.g., rail platforms, airports, bus stops, trams, underground rail), retail environments (e.g., shopping malls, supermarkets, petrol stations), entertainment venues (e.g., stadiums, arenas, cinemas, restaurants, bars) and typically any location where advertisers can reach large audiences as they go about their day-to-day business.

[0006] Such displays typically use LCD or LED technology and are designed to cater for outdoor environmental conditions such as weather, temperature, water, wind loading, etc and are designed to withstand robust environments e.g., vandalism and accidental impacts e.g., from vehicles, shopping trolleys, people, etc. Such displays are typically large e.g., 55 inches (139 cm) or higher, high brightness visible screens that can be viewed by a mass audience from a distance and require varied fixing mechanisms to suit the varied application needs e.g., ground fixed (with suitable foundations), wall mounted, integrated with structures e.g., bus-stops— and often with some creative or branded design to suit the marketing needs of brand, retailer or display owner.

[0007] Traditionally, double-sided displays employ a central airflow channel for cooling between the two displays. In such traditional displays, the cool air enters from the top of the display, and hot air exits from the bottom. However, under constant air pressure across the entire display height, the cool air warms up due to inadequate hot air rejection from the bottom, rendering cooling ineffective in the lower portion of the display and thus, potentially leads to malfunctions or errors during operation. Additionally, the electronic circuitry is typically positioned between the two displays, potentially obstructing airflow and increasing the device's overall footprint. To address these issues, some solutions have attempted to incorporate the electronic circuitry into the bottom portion, reducing both airflow obstruction and physical footprint. However, these solutions suffer from lower cooling efficiencies due to the position and size of the electronic circuitry. The cooling airflow must navigate a "choke" or "curve," requiring a sharp turn. This sharp turn causes generation of significant turbulences during air flow passage, transforming the laminar (smooth) airflow into turbulent airflow, and reducing airflow velocity. Consequently, the cooling efficiency of such solutions is considerably diminished, accompanied by noise generation due to the "tight pipe" effect.

[0008] Furthermore, fluctuations in ambient conditions, including temperature and humidity, can induce unwanted condensation, posing a threat to the electronics within these displays. While such displays often incorporate a heat exchanger as part of the cooling system to prevent overheating under warm or sunny conditions, this heat exchanger may exacerbate condensation issues during startup or in unfavourable ambient conditions during operation. Additionally, outdoor electronic displays often house sensitive electronic components susceptible to cold temperatures, leading to condensation on surfaces (e.g., housing work, metallic components, and sensitive electronics) that cool below the prevailing dew point. As a result, water vapor in warmer air condenses into water droplets on cooler surfaces at or below the dew point. Subsequently, any water formation on sensitive electronics, either through direct or indirect condensation (e.g., dripping from a cold metallic surface), can lead to short circuits, corrosion, and the accumulation of mould or residue on electrical contacts and wiring, ultimately damaging and hindering the normal operation of the electronics.

[0009] Therefore, in light of the foregoing discussion, there exists a need to overcome the aforementioned drawbacks associated with existing display apparatuses and provide an improved dual-display apparatus.

[0010] SUMMARY

[0011] The present disclosure seeks to provide a dual-display apparatus. An aim of the present disclosure is to provide a solution that overcomes at least partially the problems encountered in prior art.

[0012] In one aspect, an embodiment of the present disclosure provides a dualdisplay apparatus, comprising: a housing, having a first side and a second side, comprising a display portion and a base portion, wherein:

[0013] - the display portion comprises:

[0014] - a first display arrangement;

[0015] - a second display arrangement;

[0016] - a heat exchanger arranged between the first display arrangement and the second display arrangement; and

[0017] - a first air channel, located centrally along the heat exchanger, for enabling an ambient airflow therein, and

[0018] - the base portion comprises:

[0019] - an electronic box, occupying a part of the base portion such that a second air channel is formed between the electronic box and the second side of the housing,

[0020] - a fan array configured for extracting ambient air to enable the ambient airflow from the first air channel and passing through the second air channel; and characterized in that: - a perforated bracket configured to prevent choking of the ambient airflow at the second air channel, wherein the perforated bracket comprises an inlet side and an outlet side, such that the ambient airflow maintains laminar flow while exiting the outlet side of the perforated bracket.

[0021] Embodiments of the present disclosure substantially eliminate or at least partially address the aforementioned problems in the prior art and provide an improved dual-display apparatus.

[0022] BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Embodiments of the present disclosure will now be described, by way of example only, with reference to the following diagrams wherein:

[0024] FIG. 1A is an illustration of side view of a dual-display apparatus;

[0025] FIG. IB is an exploded perspective view of the dual-display apparatus;

[0026] FIG. 1C is an internal perspective view of a perforated bracket;

[0027] FIGs. 2A to 2F are exemplary depictions of a first set of perforations and a second set of perforations of a perforated bracket;

[0028] FIG. 3A is an exemplary depiction of an ambient airflow in a second air channel without perforated bracket;

[0029] FIG. 3B is an exemplary depiction of an ambient airflow in the second air channel with a perforated bracket;

[0030] FIG. 3C is an exemplary depiction of the complete ambient airflow in a first air channel and the second air channel of the dual-display apparatus; and

[0031] FIG. 4 is a velocity profile depicting velocity speeds of the ambient airflow, in accordance with one or more embodiments of the present disclosure. DETAILED DESCRIPTION OF EMBODIMENTS

[0032] The present disclosure provides a dual-display apparatus. The dualdisplay apparatus (or simply referred to as, apparatus) refers to an arrangement of mechanical, electronic, software and firmware components configured for displaying information (such as, advertisements, alerts, news, etc.) on either side to allow user(s) to view from multiple angles and / or locations. The dual-display apparatus is designed to cater for indoor, as well as, outdoor environmental conditions such as, weather, temperature, water, humidity, wind loading, etc. and configured to withstand robust environments e.g., harsh environmental conditions such as, high humidity, extreme temperatures, vandalism and / or accidents. The dual-display apparatus can be clearly viewed by a mass audience from varying distances and requires varied fixing mechanisms to suit the varied implementational requirements such as, but not limited to, ground fixation (with suitable foundations), wall mounting, integration with external structures e.g., bus-stops, train stations, etc. It will be appreciated by a person skilled in the art that the present disclosure is not limited to dual-display apparatuses i.e., apparatuses containing two displays, and the number of displays may be varied based on the required implementation and therefore includes single display apparatuses, as well as multi-display apparatuses i.e., including three or more displays, without any limitations to the present disclosure.

[0033] Traditionally, double-sided displays employ a central airflow channel for cooling between the two displays. In such traditional displays, the cool air enters from the top of the display, and hot air exits from the bottom. However, under constant air pressure across the entire display height, the cool air warms up due to inadequate hot air rejection from the bottom, rendering cooling ineffective in the lower portion of the display and thus, potentially leads to malfunctions or errors during operation. Additionally, the electronic circuitry is typically positioned between the two displays, potentially obstructing airflow and increasing the device's overall footprint. To address these issues, some solutions have attempted to incorporate the electronic circuitry into the bottom portion, reducing both airflow obstruction and physical footprint. However, these solutions suffer from lower cooling efficiencies due to the position and size of the electronic circuitry. The cooling airflow must navigate a "choke" or "curve," requiring a sharp turn. This sharp turn causes generation of significant turbulences during air flow passage, transforming the laminar (smooth) airflow into turbulent airflow, and reducing airflow velocity. Consequently, the cooling efficiency of such solutions is considerably diminished, accompanied by noise generation due to the "tight pipe" effect.

[0034] Furthermore, fluctuations in ambient conditions, including temperature and humidity, can induce unwanted condensation, posing a threat to the electronics within these displays. While such displays often incorporate a heat exchanger as part of the cooling system to prevent overheating under warm or sunny conditions, this heat exchanger may exacerbate condensation issues during startup or in unfavorable ambient conditions during operation. Additionally, outdoor electronic displays often house sensitive electronic components susceptible to cold temperatures, leading to condensation on surfaces (e.g., housing work, metallic components, and sensitive electronics) that cool below the prevailing dew point. As a result, water vapor in warmer air condenses into water droplets on cooler surfaces at or below the dew point. Subsequently, any water formation on sensitive electronics, either through direct or indirect condensation (e.g., dripping from a cold metallic surface), can lead to short circuits, corrosion, and the accumulation of mould or residue on electrical contacts and wiring, ultimately damaging and hindering the normal operation of the electronics. Thus, in order to overcome the aforementioned drawbacks, the present disclosure provides a novel dual-display apparatus comprising modified air channels and cooling means operable to increase in the internal pressure of the dual-display apparatus for accelerating air flow therein and thereby, cooling the dual apparatus in an effective and efficient manner. Moreover, the dual-display apparatus of the present disclosure includes electronic components separate from the air channel to eliminate potential hinderances to further increase the air flow rate, reduce the overall footprint of the apparatus, and allow heat from the electronic components to be extracted efficiently in order to provide a highly efficient self-cooling dual-display apparatus. Furthermore, the dualdisplay apparatus of the present disclosure provides modified air channels including a perforated bracket to either eliminate, or at least partially reduce, the formation of turbulences along curves or chokes, to maintain laminarity of the air flow and maintain the air flow velocity throughout the air channel in order to provide a robust, cost effective, highly efficient and effective, self-cooling dual-display apparatus with a smaller physical footprint.

[0035] The dual-display apparatus comprises a housing. The term "housing” as used herein refers to a rigid structure (or casing) configured for housing and protecting various elements of the dual-display apparatus. It will be appreciated that the housing isolates the sensitive elements of the electronic display(s) and the integrated circuit from the environmental influences. Herein, the housing of the dual-display apparatus has a first side and a second side. The housing consists of at least two sides (or regions) i.e., a first side and a second side (opposite to the first side), and may consist of separate display arrangements that constitute part of the dual-display apparatus. The housing being a three-dimensional structure comprises other sides as well, i.e., a front-side and a back side, each covering at least one display arrangement, but are not explained herein on account of obviousness and brevity of the disclosure. Typically, the housing hermetically seals the apparatus to protect the same from moisture, high degree of suspended particles in the surrounding air, and the like. Moreover, the hermetical sealing provided by the housing eliminates the cost of filters usage, a preventive ambient sterilization and an overall maintenance of the apparatus. The housing may be mechanically coupled, or detachably coupled, with a ground surface, or any other external surface, for firmly holding the various elements of the dual-display apparatus. For example, the housing may be mechanically coupled via bolts, rivets, or fasteners. The housing is shaped and sized to accommodate various elements of the dual-display apparatus and may be varied based on the implementational requirements of the present disclosure. In one embodiment, the housing has a cuboidal shape with a length (I), breadth (b) and a height (h), wherein the exact shape and dimensions of the housing are dependent upon the shape and a size of elements being employed in the dual-display apparatus. For example, the height (h) of the housing may be 2590 millimetres (mm), the breadth (b) of the housing may be 231 mm, and wherein the length (I) of the housing may be dependent upon the size of the display being employed. In another embodiment, the housing has a pentagonal prism shape. Alternatively stated, the housing may be shaped as polyhedron, wherein the shape and size is primarily dependent upon the number and size of the display(s) being employed. With the advent of increasingly large displays, it will be appreciated that the dimensions of the housing are dependent upon the size of the display(s) being employed and may be varied without any limitations to the present disclosure. In an example, the height (h) of the housing may be twice the height of a display being used in the dual-display apparatus. In another example, the breadth (b) of the housing may be thrice the breadth of a display being employed in the dual-display apparatus. Further, the material used for the construction of the housing may be selected based on cost constraints, or implementational requirements and may include, but are not limited to, a metal or an alloy such as, but not limited to, iron, aluminium, titanium, steel, silicon, etc., or a combination thereof. The housing may comprise multiple recesses (or slots), doors, panels, sub-housings, plates, fasteners, gears, hinges, etc., for enabling operation of the dualdisplay apparatus and are not explained herein since being well known in the art and for brevity of the disclosure.

[0036] In one or more embodiments, the housing further comprises a first door having a first glass panel, a second door having a second glass panel, at least two side panels covering the first side and the second side of the housing, and a floor mount for providing support to the housing. Typically, on either side(s) i.e., the front or back side, of the dual-display apparatus, the first door and the second door are mechanically coupled to the frame. For example, the first door or the second door may be hinged with the housing, or coupled via a rivet or a fastener, or detachably coupled via a snap-fit mechanism, hook mechanical coupling, a magnetic coupling and the like. In this regard, the first door and the second door are closed together to make the housing hermetically sealed. Moreover, the mechanical coupling provides a convenient opening and closing of the housing for easy accessibility of the integrated circuit. In this regard, the housing may be opened for cleaning and maintenance. Herein, each door frame is made from one of a metal, a wood, an alloy, or a plastic and each glass panel is made from one of a glass, or a plastic composite. For example, the door frame may be made from one of wood, metal, aluminum, porcelain stoneware, natural stone, plastic, or fabric. Further, each of the first door and the second door comprises respective glass panels i.e., the first door comprises the first glass panel and the second door comprises the second glass panel. The glass panel(s) may be formed of a transparent material to allow viewing (by a user) of the inside of the housing. It will be appreciated by a person skilled in the art that the material used for the formation of the door i.e., the door frame and the glass panel, may be varied based on cost constraints, size factor, weight factor, and other implementational requirements, without any limitations to the present disclosure.

[0037] Typically, the housing comprises a display portion and a base portion. Alternatively stated, the housing is divided internally into different regions for housing different sets of components (or elements) of the dual-display apparatus separately. Thus, as indicative of the nomenclature, the "display portion" refers to a part of the housing having the display(s) being employed in the dual-display apparatus and various components associated therewith, and the "base portion" refers to another part of the housing configured for housing various components required for functionality of the dual-display apparatus. For example, the display portion comprises the display(s) being used therein and other components attached therewith such as, lighting, back panels, heat exchangers, etc., whereas the base portion comprises the electronic circuitry required for the display(s), and other functionality components such as, fans, exhausts, etc.

[0038] The display portion of the housing comprises a first display arrangement and a second display arrangement, wherein the first display arrangement is arranged opposite, or at a predefined angle, with respect to the second display arrangement. Herein, each of the first display arrangement and the second display arrangement comprises at least an electronic display, and a backlight array, respectively, i.e., the first display arrangement comprises a first display, and a first backlight array, and the second display arrangement comprises a second display and a second backlight array. The term "display arrangement" as used herein refers to a part of the dual-display apparatus formed via the combination of display(s) and associated electronic and mechanical components required for operation. For example, each display arrangement may comprise a display, a backlight array, an optical element, and electrical circuitry associated therewith. The second display arrangement is arranged at a distance 'w' from the first display arrangement, such that other components of the apparatus may be arranged therebetween, for example, heat exchangers, air channel, electrical components, and the like. It will be appreciated that the electronic components may be a metal-oxide- semiconductor field-effect transistor (MOSFET), diode, capacitor, inductor, resistor, CPU, processors, power converters, SDI modules, heat pads, heatsinks, heaters, and other electronic components. The term "display" as used herein refers to an electronic display screen that displays visual information transmitted electronically using wired or wireless sources. The electronic display may be connected to a power supply for its intended continuous use. The first display and the second display may comprise a variety of shapes and sizes, for example, but not limited to, 19 inches ("), 32", 41", 55", 65", 72", 75", 85", 98", 100", 105", 210", 420", and the like. In one or more embodiments, the first display arrangement or the second display arrangement comprises a display selected from one of Liquid Crystal Display (LCD), In-Plane Switching Liquid Crystal Display (IPS-LCD), Light Emitting Diode (LED) display, Organic Light-Emitting Diode (OLED) display, and Active-Matrix Organic Light-Emitting Diode (AMOLED) display.

[0039] The display portion further comprises a heat exchanger arranged between the first display arrangement and the second display arrangement. The heat exchanger is arranged in the space (w) between the first display arrangement and the second display arrangement such that the heat exchanger may effectively exchange heat therefrom. The term "heat-exchanger" as used herein refers to a device or an arrangement of components operable for exchanging heat between two mediums, whilst preventing direct contact therebetween. For example, the heat exchanger is configured to transfer heat from a source (such as, the first display arrangement or the second display arrangement) to a fluid (such as, air, water, or any other coolant). The heat-exchanger may be a dedicated device. Alternatively, heat exchange functionality may be provided by an arrangement of components in the apparatus or housing, for example, the display(s) being employed therein. Herein, with respect to the displays being used via the dual-display apparatus, the heatexchange function may be provided in different areas of the housing, for example, adjacent to a display side or a back side of the display arrangement(s), adjacent to an electronic assembly, and the like, and may be provided as parts of a common heat-exchanger, or as individual heat-exchangers arranged within the housing. The size and shape of the heat exchanger corresponds to the size and shape of the first display arrangement or the second display arrangement. For example, the first display arrangement having a first display with a display size of 75" has a heat exchanger having a size of 75".

[0040] In one or more embodiments, the heat exchanger, is selected from one of: a heat sink, a plate heat exchanger, a plate and shell heat exchanger, an adiabatic wheel heat exchanger, a plate fin heat exchanger, a finned tube heat exchanger, a pillow plate heat exchanger, a parallel flow heat exchanger, a counter flow heat exchanger, a cross flow heat exchanger, a helical coil heat exchanger, spiral heat exchanger and a double tube heat exchanger. Preferably, the heat exchanger is a heat sink i.e., a passive heat exchanger configured to transfer the heat generated from the first display arrangement and the second display arrangement via air flow generated in the dual-display apparatus. However, it will be appreciated that other types of exchangers may be interchangeably used either separately, or in conjunction with one or more different types of heat exchangers without limiting the present disclosure. In one or more embodiments, the heat exchanger is selected based on at least one of allowable pressure limits, thermal performance, temperature ranges, fluid medium, pressure drops across the heat exchanger, fluid flow capacity and material selection. Typically, the dual-display apparatus comprises operational limits (such as, allowable pressure limits, temperature ranges, etc.) within which the dual-display apparatus may operate and therefore to maintain the conditions within such limits, an appropriate type of heat exchanger may be selected from the aforementioned heat exchangers based on the implementational requirements. The dual-display apparatus of the present disclosure employs air as the fluid medium for extracting the heat from the display(s) of the respective display arrangements. However, optionally, other types of fluid mediums such as, liquids, particulates, or high-solids liquid, may also be utilized either in place of the air flow, or in conjunction therewith, without limiting the scope of the present disclosure.

[0041] In one or more embodiments, the heat exchanger comprises one of vertically oriented fins, or horizontally oriented fins, or diagonally oriented fins, or a combination thereof. Typically, the heat exchanger comprises multiple fins arranged in a predefined manner so as to increase the heat exchanger efficiency and allow rapid cooling of the dual display apparatus. The term "fins" as used herein refers to thin, extended surfaces of the heat exchanger operable to increase the heat transfer area between the display arrangement(s) and the surrounding air. The fins of the heat exchanger can be oriented vertically, horizontally, or diagonally, depending on the specific design requirements. Specifically, vertical fins of the heat exchanger are used when space is limited, horizontal fins are suitable for situations where airflow is restricted, and diagonally oriented fins can offer a balance between heat transfer efficiency and space utilization. In some cases, a combination of fin orientations may be employed to achieve the desired cooling performance for the dual-display apparatus.

[0042] The display portion further comprises a first air channel, located centrally along the heat exchanger, for enabling an ambient airflow therein. The first air channel is located centrally along the heat exchanger to allow exchange of heat from each of the first display arrangement and the second display arrangement in an efficient manner. However, the first air channel may be divided into sub-channels for exchanging heat individually from the first and second display arrangements. The term "air channel" as used herein refers to a space (or region) between the two display arrangements configured for allowing ambient (or external) air flow within the housing in order to cool the dual-display apparatus. The air channel is shaped as a cuboid owing to the shape of the first display and the second display; however, it will be appreciated that the shape of the air channel may be varied via addition of spacer elements along the air channel, or on account of different shapes of the corresponding display(s) used in the dual-display apparatus. Conventionally, double-sided displays have an air flow channel for cooling purposes in the middle of the two displays, wherein cool air travels from the top of such double-sided displays and hot air is rejected from the bottom thereof. However, when a constant air pressure is experienced across the whole height of such displays, the cool air gets warmer due to improper rejection of the hot air from the bottom and thus, cooling is not effective anymore on the lower part of such double-sided displays and may potentially result in malfunction or errors during operation. The dualdisplay apparatus of the present disclosure is configured to overcome the aforementioned drawbacks by modifying the shape of the air channel along with the type of air flow and rate thereof by inclusion of arrays of fans to increase the pressure within the air channel to enable a pressure gradient therein in order to overcome the constant air pressure problem faced by conventional solutions as explained later on in the present disclosure.

[0043] In another embodiment, the dual display apparatus further comprises a floor mount for supporting the housing. The floor mount is mechanically coupled to a floor surface and provides a stable support for the dual display apparatus and components thereof. Optionally, instead of a floor surface, the dual display apparatus may be coupled to a ceiling via a ceiling mount, or a wall via a wall mount. The shape and dimensions of the floor mount are dependent upon the shape and size of the display portion of the housing which in turn is dependent upon the shape and size of the first and second display arrangement. In an example, the height of the floor mount ranges between 100 mm to 1200 mm. In yet another embodiment, the floor mount further comprises an exhaust for dispensing the ambient airflow. The exhaust is operable to dispense the ambient airflow from the first air channel to enhance the cooling effect. The exhaust may be coupled with an exhaust fan such that the rate of dispensing the ambient airflow can be controlled based on at least one of a temperature, or other ambient factors, to optimize cooling performance and energy consumption of the dual-display apparatus. Additionally, the electronic box is attached directly to the exhaust for directly dissipating heat developed therefrom to improve the overall cooling efficiency of the dual display apparatus. The floor mount and the exhaust provide an effective mechanism for cooling the dual display apparatus. The floor mount provides a stable platform and may assist with airflow management of the ambient airflow. Such a design approach ensures that the dual display apparatus operates within its optimal temperature range, preventing overheating and potential damage.

[0044] The dual-display apparatus further comprises the base portion. Herein, the base portion comprises an electronic box, occupying a part of the base portion such that a second air channel is formed between the electronic box and the second side of the housing. The term "electronic box" refers to an integrated electrical circuitry of the dual-display apparatus configured for supplying power to each of the elements of the dual-display apparatus. In an example, the electronic box is configured to supply power to the first display arrangement and the second display arrangement. Conventionally, the electronic circuitry (or box) is arranged between the two displays for convenience. However, such an arrangement increases the physical footprint of the apparatus and at the same time hinders the airflow therein. To overcome the aforementioned problem, the electronic box of the dual-display apparatus is arranged beneath the display portion i.e., under the first display arrangement and the second display arrangement, wherein the electronic box occupies a part of the base portion such that the second air channel is formed between the electronic box and the second side of the housing. Beneficially, the arrangement of the electronic box in the base portion reduces the overall physical footprint i.e., reduces the breath of the apparatus and provides modularity to the dual-display apparatus such that if the electronic box malfunctions, it may be easily removed without first having to remove the display arrangements as required in conventional solutions. Moreover, the second air channel is arranged along with the first air channel such that the ambient airflow can be transferred without any disturbances. The second air channel is shaped and sized based on the shape of the electronic box and in an embodiment, wherein the electronic box is shaped as a trapezoidal prism, the second air channel is shaped as an inverted "C" curve. Optionally, the electronic box is shaped as one of a trapezoidal prism, a trapezoidal pyramid, a paraboloid, an ellipsoid, a cuboid, a cylinder, or a frustrum of a cone. However, the shape of the electronic box may be varied without any limitations to the present disclosure.

[0045] In one or more embodiments, the electronic box comprises a first end having a first height (hl) and a second end having a second height (h2), wherein the second height (h2) is lesser than or equal to the first height (hl). The first height (hl) varies depending on the height (h) of the first display arrangement and the second display arrangement and varies in a range of 140mm to 240mm. Moreover, the breadth of the electronic box i.e., the distance between the first end and the second end is varied to modify the dimensions of the second air channel such that the second air channel having a depth (dl), is formed between the second end of the electronic box and the second side of the housing. For example, the depth (dl) of the second air channel is in a range of 15mm to 60mm. The depth (dl) of the second air channel is varied throughout on account of the shape of the electronic box and may be varied without any limitations to the present disclosure. In an exemplary embodiment, wherein the height (h) of the first display arrangement and the second display arrangement is 2090mm and the height of the floor mount is 500mm, the first height (hl) of the first end of the electronic box is 158 mm and the second height (h2) of the second end of the electronic box is 72 mm. The ratio of the first height of the first end and the second height of the second end for the 75" variant is 2.1388. However, the ratio (hl / h2) may be varied in a range of 1.60 to 2.68, for other variants of the first and second display arrangements.

[0046] In another embodiment, wherein when the electronic box is shaped as a trapezoidal prism, at least one of the edges of the electronic box forms an angle (a) in a range of 15 degrees to 25 degrees with respect to a horizontal axis (X). Typically, since the first height (hl) of the first end is greater than the second height (h2) of the second end, a slope is formed as at least one of the edges of the electronic box with respect to the horizontal axis (X). The at least one of the edges thereby forms the angle (a) in a range of 15 degrees to 25 degrees, which in turn modifies the shape of the second air channel. Thus, beneficially, by varying the slope of the at least one of the edges of the electronic box with respect to the horizontal axis (X), the curvature (or choke) of the second air channel is varied to modify the rate of ambient airflow. In one embodiment, the angle (a) formed by at least one of the edges of the electronic box is 20 degrees with respect to the horizontal axis (X).

[0047] The base portion further comprises a fan array configured for extracting ambient air to enable the ambient airflow from the first air channel and passing through the second air channel. The term "fan array" as used herein refers to one or more set of fans moving in a preferred direction to extract ambient air from the surroundings. The fan array is configured to extract ambient air (or atmospheric air) from the surrounding environment to circulate the ambient airflow within the housing for cooling the dual-display apparatus. Optionally, the fan array comprises a first array of fans configured to extract ambient air from the surrounding environment to circulate the ambient airflow and a second array of fans configured to circulate an internal air flow such that internal components of the dual-display apparatus may cooled on account of the internal air flow. Herein, the fans in the fan array may be of similar sizes, or of different sizes, based on requirement and the size selection may be done to improve the cooling efficiency of the dual-display apparatus. Typically, different sizes of fans of the fan array offer different fan speeds and thus, enabling generation of different air flow rate for each type of air flow in order to ensure proper circulation throughout the dual-display apparatus. The fan array comprises fans having a size (or diameter) in the range of 60 millimetres (mm) to 150mm. In an embodiment, the fan array comprises fans having a size of 92mm. In another embodiment, the fan array comprises fans having a size of 60mm. The fan array may have a dedicated power source that may or may not be the same as that of the first display arrangement and the second display arrangement. Beneficially, a greater heat-exchanger efficiency can be achieved by adjusting the air flow(s) through the air channel(s) within the housing by adjusting the individual fan speeds of each fan of the fan array.

[0048] The differential fan speeds (and associated volume of the air flow(s)) are adjusted relative to each other to maximize the temperature differential within the apparatus as a whole. Further, with an increase in the fan speed of fan array, the velocity of air flow is increased and as a result, the cooling efficiency of the dual-display apparatus is increased. Notably, the fan speed of the fan array is to be increased only to a predefined limit, such that the higher friction generated on account of the increase in fan speed does not impede the cooling efficiency of the dual-display apparatus. Moreover, variation in fan speeds may be based on ambient temperatures i.e., when the ambient temperature is low, the fan speeds of fan array is lowered in order to preserve power and improve the efficiency of the dual display apparatus and similarly, when the ambient temperature is high, the fan speeds of the fan array is lowered in order to increase the cooling efficiency of the dual-display apparatus. It will be appreciated by a person skilled in the art that dedicated inlets or spaces may be left within the housing to allow circulation of the ambient airflow and the internal air flow as will be explained later on in the present disclosure and the number and position of such inlets or spaces may be varied to improve the circulation and air flow rate in order to cool the dual-display apparatus without any limitations to the present disclosure. Additionally, optionally, via adjustment of the air flow(s) across all available air flow channels (i.e., by adjusting individual fan speeds), the efficiency of the heat-exchanger increases and thereby allows a greater amount of heat to be extracted from the ambient airflow for a given size heat-exchanger. Moreover, optionally, as an alternative to varying fan speeds, fans may be operated at a fixed or predetermined speed and switched alternately on and off (e.g., via a variable duty cycle) to control the flow rate of the ambient airflow through the heat-exchanger.

[0049] Traditionally, the cooling airflow must navigate a "choke" or "curve", of the air channel(s) requiring a sharp turn. Such a sharp turn causes generation of significant turbulences during air flow passage, transforming the laminar (smooth) airflow into turbulent airflow, and reducing airflow velocity. Consequently, the cooling efficiency of such solutions is considerably diminished, accompanied by noise generation due to the "tight pipe" effect. To overcome the aforementioned problem, the present disclosure provides the base portion of the housing, wherein the base portion further comprises a perforated bracket configured to prevent choking of the ambient airflow at the second air channel. The term "perforated bracket" as used herein refers to a mechanical component featuring a plurality of holes or perforations strategically arranged to facilitate airflow while maintaining structural integrity of the dual-display apparatus. Herein, the perforated bracket comprises an inlet side and an outlet side, such that the ambient airflow maintains laminar flow while exiting the outlet side of the perforated bracket. The perforated bracket comprises the inlet side i.e., operable to accommodate entrance (or inlet) of the ambient airflow through perforations present therein. Upon passing the inlet side, the ambient airflow maintains the laminar flow on account of gradual reduction of the ambient airflow velocity as it passes through the perforations. Such a controlled deceleration offered by the perforated bracket prevents the formation of turbulences, which otherwise disrupts the orderly flow of the ambient air and reduces cooling performance in conventional solutions. Alternatively stated, in the dualdisplay apparatus, the perforated bracket is employed to prevent choking of the ambient airflow, particularly at transitions or bends in the second air channel. By strategically placing the perforated bracket, the ambient airflow remains laminar and efficient, and thereby promoting effective heat transfer from the dual display apparatus. Therefore, the technical effect of the perforated bracket is that it provides an efficient heat transfer in the dual display apparatus, by providing a smooth and uninterrupted ambient airflow, where the perforated bracket prevents choking of ambient airflow at the second air channel. Notably, the uninterrupted ambient airflow maintains the laminar flow while exiting the outlet side of the perforated bracket. It may be appreciated that the laminar flow of air plays a significant role in the efficiency and effectiveness of heat transfer, when surface area of heat exchange is increased, such as with use of the modified air channels, the fins, and the like. Further, the shape of the perforated bracket is varied based on the shape of the second air channel, or the shape of base portion of the housing, or the electronic box. In an example, the perforated bracket has a cuboidal shape, an arced configuration, a cubical shape, and the like. In one or more embodiments, the perforated bracket comprising the inlet side has a first inlet part and a second inlet part. The first inlet part and the second inlet part together constitute the inlet side, wherein the first inlet part first comes in contact with the ambient airflow and allows entrance via perforations present therein, and thereby the ambient airflow exits from perforations of the second inlet part during transit. Moreover, the perforated bracket comprising the outlet side has a first outlet part and a second outlet part. The first outlet part and the second outlet part together constitute the outlet side, wherein the ambient airflow upon exiting from the second inlet part of the inlet side, first comes in contact with the first outlet part and enters through the perforations present therein and exits from the second outlet part. In operation, at each stage i.e., when the ambient airflow passes through each of the first inlet part and the second inlet part of the inlet side, and the first outlet part and the second outlet part of the outlet part, the laminar flow is maintained on account of gradual reduction of the ambient airflow velocity as it passes through the perforations present therein. Such a controlled deceleration offered by each part of the inlet and outlet side of the perforated bracket prevents the formation of turbulences and thereby maintains the cooling performance of the dual-display apparatus. The shape of each of the first inlet part and the second inlet part of the inlet side, and the first outlet part and the second outlet part of the outlet side, of the perforated bracket may be varied based on the shape of the second air channel and the electronic box to improve the distribution pattern of the ambient airflow. In one or more embodiments, each of the first inlet part and the second inlet part are shaped as one of: a triangle, an ellipse, a semi-circle, or an airfoil, and the first outlet part and the second outlet part are shaped as one of: a triangle, an ellipse, a semicircle, or an airfoil, or a combination thereof.

[0050] In another embodiment, each of the first inlet part and the second inlet part have a first set of perforations, and the first outlet part and the second outlet part have a second set of perforations. Typically, the first set of perforations and the second set of perforations may or may not have the same perforation pattern depending upon the implementational requirements and may be varied to improve the rate of ambient airflow in the second air channel. Beneficially, the presence or arrangement of the first set of perforations and the second set of perforations on the perforated bracket increases the surface area exposed to the ambient airflow, thereby enhancing heat transfer between the dual-display apparatus and the surrounding environment. This allows for more efficient heat dissipation, preventing overheating of the device, and thereby enhancing the cooling efficiency of the dual-display apparatus.

[0051] In one or more embodiments, a number of perforations in the first set of perforations of the first inlet part are in a range of 50 to 180 and the second set of perforations of the second inlet part and the second outlet part are in a range of 50 to 180. Typically, the number of perforations in the perforated bracket depend on the size of the second air channel and the size of the first display arrangement and the second display arrangement. For example, wherein the size of the first display arrangement or the second display arrangement is 75", the number of perforations in the first set of perforations or the second set of perforations are 90. Beneficially, by varying the number of perforations i.e., the perforation density on the perforated bracket, the airflow velocity of the ambient airflow may be varied i.e., with an increase in the number of perforations, the velocity of the ambient airflow is increased, the laminar flow is promoted via reduction of turbulences, and the noise levels generated are reduced. However, a balance is to be maintained since increase in the number of perforations may potentially result in a pressure drop and deteriorate the structural integrity of the perforated bracket. In or more embodiments, each perforation of the first set of perforations, or the second set of perforations, is shaped as one of a circle, a rectangle, an ellipse, a pentagon, a hexagon, a heptagon, an octagon, or an airfoil. Typically, by varying the shape of the perforations, the airflow characteristics of the ambient airflow is varied to beneficially improve the velocity of the ambient airflow to enhance the cooling efficiency of the apparatus. Further, variation of the shape of the perforations may be done to improve the airflow control i.e., to have precision control over the ambient airflow distribution. In an example, wherein the first set of perforations and the second set of perforations are elliptical or oval, laminarity of the ambient airflow is maintained and turbulences are minimized in order to promote efficient heat transfer via the dual display apparatus. Thus, changing the shape of perforations in the perforated bracket offers a range of potential benefits, including enhanced heat transfer, noise reduction, improved airflow control, and aesthetic enhancements.

[0052] Moreover, in one or more embodiments, a width (wl) of each perforation of the first set of perforations, or a width (w2) of each perforation of the second set of perforations, is in a range of 3 millimeters (mm) to 11 mm. Herein, each perforation of the first set of perforations has a same size and similarly, each perforation of the second set of perforations has a same size to provide a uniform ambient airflow. For example, the first set of perforations have a width (wl) equal to 5mm, or 6mm, and the like. Similarly, the second set of perforations have a width (w2) equal to 5mm, or 6mm, and the like. Typically, the size of the perforations plays a crucial role in controlling the airflow rate and pattern of the ambient airflow while passing through the second air channel. The perforations of the perforated bracket are utilized to control the direction and distribution of the ambient airflow by adjusting the size and arrangement of the first set of perforations of the inlet side and the second set of perforations of the outlet side such that the ambient airflow may be directed to a preferred area, or to establish a uniform laminar distribution pattern of the ambient airflow.

[0053] However, some implementations require different type(s) or patterns of air flow to improve the velocity and laminarity of the ambient airflow and obtained a desired ambient airflow pattern (or distribution). Thus, for the above purposes, in one or more embodiments, one or more first perforations of the first set of perforations, or the second set of perforations, have a width (w3) in a range of 3mm to 5mm, and one or more second perforations of the first set of perforations, or the second set of perforations have a width (w4) in a range of 7mm to 11mm. Typically, the sizes of some of the perforations i.e., one or more first or second perforations, of the first set of perforations and the second set of perforations is varied to obtain a desired distribution and airflow rate of the ambient airflow. Modification of the sizes to provide different perforations in the first set and the second set of perforations in the perforated bracket has a localized impact on airflow characteristics, depending on the specific pattern and size variations. In an exemplary embodiment of the first set, or the second set, of perforations, one or more first perforations have a width (w3) of 4mm and one or more second perforations (i.e., remaining perforations) have a width (w4) of 9mm. Such an implementation of having larger perforations i.e., the one or more second perforations such as, on either sides, and smaller perforations i.e., the first set of perforations, in the middle of the one or more second perforations, provides increased velocities via the one or more second perforations and restricted airflow via the one or more first perforations to minimize the turbulences during transit and provide a desired laminar ambient airflow.

[0054] In one or more embodiments, the perforated bracket is made from at least one of galvanized steel, ungalvanized steel, stainless steel, aluminium, titanium, mass loaded vinyl (MLV), acrylonitrile butadiene styrene (ABS), carbon or glass fibre composite, or a composite thereof. The aforementioned materials may be used either separately or in conjunction with each other to form a composite in order to improve the robustness of the perforated bracket. The material of the perforated bracket is chosen based on the specific application requirements to provide robustness and structural integrity to the perforated bracket. The perforated bracket is operable to maintain its structural integrity under the applied loads and environmental conditions and may also be utilized to provide support to some of the internal components of the dual-display apparatus.

[0055] In one or more embodiments, the perforation bracket further comprises a covering member. The term "covering member" as used herein refers to a soundproofing material employed to absorb, reflect, or diffuse sound waves created on account of the ambient airflow through the perforated bracket. The covering member is designed to reduce the noise levels associated with the ambient airflow by conversion into different energy forms. Additionally, the covering member improves the life of the dual display apparatus and the perforated bracket by minimizing wear and tear caused due to the noise induced vibrations. The material or type of the covering member is selected based on the specific implementation, cost constraints, required level of noise reduction, environmental and aesthetic considerations, and in some embodiments, the covering member is selected from at least one of a MLV, an acoustic foam panel, an acoustic fiberglass panel, an acoustic membrane, a lead sheet, a loaded rubber sheet, or a barrier composite.

[0056] The present disclosure also provides a display apparatus. The various embodiments and variants disclosed above apply mutatis mutandis to the present display apparatus without any limitations.

[0057] In another aspect, the present disclosure provides a display apparatus. The display apparatus comprises a housing having a first side and a second side. The housing comprises a display portion and a base portion, wherein the display portion comprises a display arrangement, having a display module, a heat exchanger arranged along the display module, and a first air channel, located centrally along the heat exchanger, for enabling an ambient airflow therein. The base portion comprises an electronic box, occupying a part of the base portion such that a second air channel is formed between the electronics box and the second side of the housing. The base portion further comprises a fan array configured for extracting ambient air to enable the ambient airflow from the first air channel and passing through the second air channel, and characterized in that a perforated bracket configured to preventing choking of the ambient airflow at the second air channel, wherein the perforated bracket comprises an inlet side and an outlet side, such that the ambient airflow maintains laminar flow while exiting the outlet side of the perforated bracket.

[0058] In view of the above, the dual-display apparatus of the present disclosure provides modified air channels including the perforated bracket to either eliminate, or at least partially reduce, the formation of turbulences along curves or chokes, to maintain laminarity of the air flow and maintain the air flow velocity throughout the air channel in order to provide a robust, cost effective, highly efficient and effective, self-cooling dual-display apparatus with a smaller physical footprint. In this regard, particularly, the fan array is configured to extract the ambient air to enable the ambient airflow from the first air channel and passing through the second air channel, wherein the ambient airflow maintains the laminarity of the air flow throughout the dual-display apparatus. Herein, the laminar air flow is maintained even passing through the curves of the second air channel on the account of the perforated brackets. The laminarity of the air flow is maintained by avoiding the sharp choke points in the second air channel since the perforated bracket allows the ambient air flow to pass therethrough and eliminates the occurrences of turbulences. The implementation further maintains the velocity of the ambient airflow throughout the second air channel which results in improving the cooling efficiency of the dual display apparatus while simultaneously reducing the noise generation due to the tight pipe effect. It may be appreciated that the perforated bracket monitors and controls the air flow. Moreover, the dual display apparatus of the present disclosure does not split the ambient air between different uses. The dual display apparatus uses a single array of cooling channels from the same source that cools both the backlights, LCD panels, and electronics display.

[0059] The present disclosure also provides a multi-display apparatus. The various embodiments and variants disclosed above apply mutatis mutandis to the present multi-display apparatus without any limitations.

[0060] In yet another aspect, the present disclosure provides a multi-display apparatus. The multi-display apparatus comprises a housing having a first side and a second side. The housing comprises a display portion and a base portion, wherein the display portion comprises at least three display arrangements, a heat exchanger arranged between the at least three display arrangements, and a first air channel, located centrally along the heat exchanger, for enabling an ambient airflow therein. The base portion comprises an electronic box, occupying a part of the base portion such that a second air channel is formed between the electronics box and the second side of the housing. The base portion further comprises a fan array configured for extracting ambient air to enable the ambient airflow from the first air channel and passing through the second air channel, and characterized in that a perforated bracket configured to preventing choking of the ambient airflow at the second air channel, wherein the perforated bracket comprises an inlet side and an outlet side, such that the ambient airflow maintains laminar flow while exiting the outlet side of the perforated bracket. Herein, the number of display arrangements may be varied based on the intended implementation and correspondingly the shape of the housing is varied to accommodate the at least three display arrangements. Typically, for three display arrangements, the housing has a triangular prism shape, wherein each face (or side) of the housing comprises one of the three display arrangements. Similarly, for four display arrangements, the housing has a cuboidal shape, wherein each face (or side) of the housing comprises one of the four display arrangements. Similarly, for five display arrangements, the housing has a pentagonal prism shape, wherein each face (or side) of the housing comprises one of the five display arrangements, and so on.

[0061] DETAILED DESCRIPTION OF THE DRAWINGS

[0062] Referring to FIG. 1A, illustrated is a side view of a dual-display apparatus 100, in accordance with one or more embodiments of the present disclosure. Herein, only a part of the display portion 102A is depicted along with the base portion 102B for simplicity and understanding. As shown, the dual display apparatus comprises a housing 101 having a first side 101A and a second side 101B. The housing 101 comprises a display portion 102A and a base portion 102B. Herein, the display portion 102A comprises a first display arrangement 104, a second display arrangement 114, a heat exchanger 110 (shown in FIG. IB) arranged between the first display arrangement 104 and the second display arrangement 114, and a first air channel 120, located centrally along the heat exchanger 110, for enabling an ambient airflow 122 therein. The ambient airflow 122 is depicted via a dashed arrow, and only a part of the first display arrangement 104 and the second display arrangement 114 is shown. Further, the base portion 102B comprises an electronic box 123, occupying a part of the base portion 102B such that a second air channel 130 is formed between the electronic box 123 and the second side 101B of the housing 101. Herein, the electronic box 123 comprises a first end 123A having a first height (hl), a second end 123B having a second height (h2), and wherein the second height (h2) is lesser than or equal to the first height (hl), such that the second air channel 130 having a depth dl, is formed between the second end 123B and the second side 101B of the housing 101. Further, optionally, when the electronic box 123 is shaped as a trapezoidal prism, at least one of the edges 123C or 123D of the electronic box 123 forms an angle a in a range of 15 degrees to 25 degrees with respect to a horizontal axis X. Herein, the angle a formed between the edge 123D of the electronic box 123 and the horizontal axis X is 20 degrees, wherein the associated elevation (or height) of the slope is 55mm. Similarly, the angle a formed between the edge 123C of the electronic box 123 and the horizontal axis X is 20 degrees, wherein the associated elevation (or height) of the slope is 43 mm The base portion 102B further comprises a fan array 118 configured for extracting ambient air to enable the ambient airflow 122 from the first air channel 120 and passing through the second air channel 130. Further, characterized in that, the base portion 102B further comprises a perforated bracket 124 configured to prevent choking of the ambient airflow 122 at the second air channel 130, wherein the perforated bracket 124 comprises an inlet side 126 and an outlet side 128, such that the ambient airflow 122 maintains laminar flow while exiting the outlet side 128 of the perforated bracket 124. Furthermore, the base portion 102B of the housing 101 further comprises a floor mount 150 for providing support to the housing 101.

[0063] Referring to FIG. IB, illustrated is an exploded perspective view of the dual-display apparatus 100, in accordance with one or more embodiments of the present disclosure. It will be appreciated that FIG. IB is read in conjunction with FIG. 1A. As shown, the dual display apparatus comprises a housing 101 having a first side 101A (shown in FIG. 1A) and a second side 101B (shown in FIG. 1A). The housing 101 comprises a display portion 102A and a base portion 102B. Herein, the display portion 102A comprises a first display arrangement 104, a second display arrangement 114, and a heat exchanger 110 (shown in FIG. IB) arranged between the first display arrangement 104 and the second display arrangement 114. Herein, the heat exchanger 110 comprises vertically oriented fins. Moreover, the housing 101 further comprises a first door 142 having a first glass panel, a second door 144 having a second glass panel, at least two side panels 146A, 146B covering the first side 101A and the second side 101B of the housing 101; and a floor mount 150 for providing support to the housing 101. The floor mount 150 further comprises an exhaust 152 for dispensing the ambient airflow 122.

[0064] Referring to FIG. 1C, illustrated is an internal perspective view of the perforated bracket 124 of FIG. 1A, in accordance with one or more embodiments of the present disclosure. As shown, the perforated bracket 124 comprises the inlet side 126 and the outlet side 128. Herein, the inlet side 126 has a first inlet part 126A and a second inlet part 126B, and the outlet side 128 has a first outlet part 128A and a second outlet part 128B. Further, specifically, in the inlet side 126, each of the first inlet part 126A and the second inlet part 126B have a first set of perforations 125A, and in the outlet side 128, the first outlet part 128A and the second outlet part 128B have a second set of perforations 125B. Typically, to achieve the intended effect i.e., to negate the turbulences caused on account of the choke(s) or curves in the second air channel 130 in order to maintain the laminarity of the ambient airflow 122 and improve the cooling efficiency of the dual-display apparatus, each of the first inlet part 126A and the second inlet part 126B have the same shape and size of the first set of perforations and similarly, the first outlet part 128A and the second outlet part 128B have the same shape and size of the second set of perforations 125B. Herein, the first set of perforations 125A and the second set of perforations 125B have a substantially rectangular shape. Furthermore, optionally, a width (wl) of each perforation of the first set of perforations (125A), and a width (w2) of each perforation of the second set of perforations (125B), is in a range of 3 millimeters (mm) to 11 mm. Referring to FIGs. 2A to 2F, collectively, illustrated are exemplary depictions of the first set of perforations 125A and the second set of perforations 125B of the perforated bracket 124 of FIG. 1A or 1C, in accordance with one or more embodiments of the present disclosure. Herein, different types of patterns, shapes and sizes of the first set of perforations 125A and the second set of perforations 125B of the perforated bracket 124 are depicted. Typically, modifying the size of only a few perforations in a perforated bracket can have a localized impact on airflow characteristics, depending on the specific pattern and size variations. Thus, to obtain a desired characteristic of the ambient airflow 122, one or more first perforations 127A of the first set of perforations 125A, or the second set of perforations 125B, have a width w3 in a range of 3mm to 5mm and one or more second perforations 127B of the first set of perforations 125A, or the second set of perforations 125B have a width w4 in a range of 7mm to 11mm. Notably, the spacing between any two perforations may be varied as depicted to achieve the desired characteristic of the ambient airflow 122.

[0065] Referring to FIGs. 2A and 2B, collectively, illustrated are exemplary depictions of the first set of perforations 125A of the perforated bracket 124, in accordance with an embodiment of the present disclosure. Herein, the first set of perforations have a substantially rectangular shape. As shown, in FIG. 2A, a first perforation 127A arranged in the middle of the first set of perforations 125A has a width w3 and two second perforations 127B arranged on either side of the first perforation 127A have a width w4. Moreover, the spacing between the one or more first perforations 127A, or the one or more second perforations 127B, of the first set of perforations 125A may or may not be constant. Further shown in FIG. 2B, each of the one or more first perforations 127A of the first set of perforations 125A have the same width w3. Referring to FIGs. 2C and 2D, collectively, illustrated are exemplary depictions of the first set of perforations 125A of the perforated bracket 124, in accordance with an embodiment of the present disclosure. Herein, the first set of perforations have an elliptical shape. As shown, in FIG. 2C, a first perforation 127A arranged in the middle of the first set of perforations 125A has a width w3 and two second perforations 127B arranged on either side of the first perforation 127A have a width w4. Moreover, the spacing between the one or more first perforations 127A, or the one or more second perforations 127B, of the first set of perforations 125A may or may not be constant. Further shown in FIG. 2D, each of the one or more second perforations 127B of the first set of perforations 125A have the same width w4.

[0066] Referring to FIGs. 2E and 2F, collectively, illustrated are exemplary depictions of the second set of perforations 125B of the perforated bracket 124, in accordance with an embodiment of the present disclosure. Herein, the second set of perforations have a circular shape. As shown, in FIG. 2E, a first perforation 127A arranged in the middle of the second set of perforations 125B has a width w3 and two second perforations 127B arranged on either side of the first perforation 127A have a width w4. Moreover, the spacing between the one or more first perforations 127A, or the one or more second perforations 127B, of the second set of perforations 125A may or may not be constant. Further shown in FIG. 2B, each of the one or more second perforations 127B of the second set of perforations 125A have the same width w4.

[0067] Referring to FIG. 3A, illustrated is an exemplary depiction of the ambient airflow 122 in the second air channel 130 without the perforated bracket 124, in accordance with an embodiment of the present disclosure. As shown, the ambient airflow 122 while passing a choke C having a width of 18mm is severely constricted and must navigate through the choke C (or curve), of the second air channel 130 requiring a sharp turn. Such a sharp turn causes generation of significant turbulences during ambient airflow 122 passage, transforming the laminar (smooth) ambient airflow 122 into turbulent airflow, and therefore reducing airflow velocity. Consequently, the cooling efficiency of the apparatus 100 is considerably diminished, accompanied by noise generation due to the "tight pipe" effect.

[0068] Referring to FIG. 3B, illustrated is an exemplary depiction of the ambient airflow 122 in the second air channel 130 with the perforated bracket 124, in accordance with an embodiment of the present disclosure. As shown, the choke C (of FIG. 3A) is eliminated on account of the perforated bracket 124. The ambient airflow 122 avoids the sharp choke point in the second air channel 130 since the perforated bracket 124 allows the ambient airflow 124 to pass therethrough and thus, eliminates the occurrences of turbulences and allows the ambient airflow 122 to maintain laminarity throughout the second air channel 130. Such an implementation maintains the velocity of the ambient airflow 122 throughout the second air channel 130 and therefore improves the cooling efficiency of the dual-display apparatus 100 while simultaneously reducing the noise generation due to the "tight pipe" effect.

[0069] Referring to FIG. 3C, illustrated is an exemplary depiction of the complete ambient airflow 122 in the first air channel 120 and the second air channel 130 of the dual-display apparatus 100, in accordance with one or more embodiments of the present disclosure. As shown, the fan array 118 is configured for extracting ambient air to enable the ambient airflow 122 from the first air channel 120 and passing through the second air channel 130. Notably, the ambient airflow 122 maintains laminarity i.e., the laminar ambient airflow 122 is maintained throughout the dual-display apparatus 100. Herein, during transit, the laminar ambient airflow 122 is maintained even while passing through curve(s) of the second air channel 130 on account of the perforated bracket 124. Such an arrangement of the perforated bracket 124 enables maintenance of the laminarity of the ambient airflow 122 throughout and as a result, improves the cooling efficiency of the dual display apparatus 100.

[0070] Referring to FIG. 4, illustrated is a velocity profile depicting velocity speeds of the ambient airflow 122, in accordance with one or more embodiments of the present disclosure. Herein, regions having different velocity speeds are depicted using different dotted patterns and striped patterns, wherein the density of the dotted patterns is indicative of the velocity of the ambient airflow 122. Typically, a 5% dotted region is indicative of a velocity of 0 meters per second (m / s) to 0.625 m / s, a 25% dotted region is indicative of a velocity of 0.625 m / s to 1.250 m / s, a 40% dotted region is indicative of a velocity of 1.25 m / s to 1.875 m / s, a diagonally striped region is indicative of a velocity of 1.875 m / s to 2.50 m / s, a 75% dotted region is indicative of a velocity of 2.50 m / s to 3.125 m / s, a large confetti pattern is indicative of a velocity of 3.125 m / s to 3.750 m / s, a horizontally striped region is indicative of a velocity of 3.750 m / s to 4.375 m / s, and a vertically striped region is indicative of a velocity of 4.375 m / s and higher velocities, as depicted in associated legend. As shown, the velocity of the ambient airflow 122 is substantially maintained in a range of 0.625 m / s to 2.5m / s while passing through the second air channel 130 and thereby maintains the laminarity throughout. Moreover, while passing through the perforated bracket 124, the velocity is constant and does not cause turbulences while exiting through the outlet side 128 of the perforated bracket 124 to maintain the laminarity of the ambient airflow 122. Further, while exiting through the exhaust 152, the velocity of the ambient airflow 122 is increased on account of the fan array 118.

Claims

CLAIMS1. A dual-display apparatus (100), comprising: a housing (101), having a first side (101A) and a second side (101B), comprising a display portion (102A) and a base portion (102B), wherein:- the display portion (102A) comprises:- a first display arrangement (104);- a second display arrangement (114);- a heat exchanger (110) arranged between the first display arrangement and the second display arrangement; and- a first air channel (120), located centrally along the heat exchanger (110), for enabling an ambient airflow (122) therein, and- the base portion (102B) comprises:- an electronic box (123), occupying a part of the base portion such that a second air channel (130) is formed between the electronic box and the second side (101B) of the housing,- a fan array (118) configured for extracting ambient air to enable the ambient airflow (122) from the first air channel (120) and passing through the second air channel (130); and characterized in that:- a perforated bracket (124) configured to prevent choking of the ambient airflow at the second air channel, wherein the perforated bracket comprises an inlet side (126) and an outlet side (128), such that the ambient airflow maintains laminar flow while exiting the outlet side of the perforated bracket.

2. The dual-display apparatus (100) of claim 1, wherein the perforated bracket (124) comprising: the inlet side (126) has a first inlet part (126A) and a second inlet part (126B); andthe outlet side (128) has a first outlet part (128A) and a second outlet part (128B).

3. The dual-display apparatus (100) of claim 1 or 2, wherein each of: the first inlet part (126A) and the second inlet part (126B) have a first set of perforations (125A), and the first outlet part (128A) and the second outlet part (128B) have a second set of perforations (125B).

4. The dual-display apparatus (100) of claim 1, 2, or 3, wherein each of: the first inlet part (126A) and the second inlet part (126B) are shaped as one of: a triangle, an ellipse, a semi-circle, or an airfoil; and the first outlet part (128A) and the second outlet part (128B) are shaped as one of: a triangle, an ellipse, a semi-circle, or an airfoil.

5. The dual-display apparatus (100) of any of the preceding claims, wherein a width (wl) of each perforation of the first set of perforations (125A), or a width (w2) of each perforation of the second set of perforations (125B), is in a range of 3 millimeters (mm) to 11 mm.

6. The dual-display apparatus (100) of any of the preceding claims, wherein: one or more first perforations (127A) of the first set of perforations (125A), or the second set of perforations (125B), have a width (w3) in a range of 3mm to 5mm; and one or more second perforations (127B) of the first set of perforations (125A), or the second set of perforations (125B) have a width (w4) in a range of 7mm to 11mm.

7. The dual-display apparatus (100) of any of the preceding claims, wherein each perforation of the first set of perforations, or the second setof perforations, is shaped as one of a circle, a rectangle, an ellipse, a pentagon, a hexagon, a heptagon, an octagon, or an airfoil.

8. The dual-display apparatus (100) of any of the preceding claims, wherein the perforated bracket is made from at least one of galvanized steel, ungalvanized steel, stainless steel, aluminium, titanium, mass loaded vinyl (MLV), acrylonitrile butadiene styrene (ABS), carbon or glass fibre composite, or a composite thereof.

9. The dual-display apparatus (100) of any of the preceding claims, wherein the perforation bracket further comprises a covering member.

10. The dual-display apparatus (100) of claim 9, wherein the covering member is selected from at least one of a MLV, an acoustic foam panel, an acoustic fiberglass panel, an acoustic membrane, a lead sheet, a loaded rubber sheet, or a barrier composite.

11. The dual-display apparatus (100) of any of the preceding claims, wherein the electronic box (123), comprises: a first end (123A) having a first height (hl); a second end (123B) having a second height (h2), and wherein the second height (h2) is lesser than or equal to the first height (hl), such that the second air channel (130) having a depth (dl), is formed between the second end (123B) and the second side (101B) of the housing (101).

12. The dual-display apparatus (100) of any of the preceding claims, wherein the electronic box (123) is shaped as one of a trapezoidal prism, a trapezoidal pyramid, a paraboloid, an ellipsoid, a cuboid, a cylinder, or a frustrum of a cone.

13. The dual-display apparatus (100) of any of the preceding claims, wherein when the electronic box (123) is shaped as a trapezoidal prism, at least one of the edges (123C or 123D) of the electronic box forms anangle (a) in a range of 15 degrees to 25 degrees with respect to a horizontal axis (X).

14. The dual-display apparatus (100) of any of the preceding claims, wherein the heat exchanger (110) comprises one of: vertically oriented fins; or horizontally oriented fins; or diagonally oriented fins, or a combination thereof.

15. The dual-display apparatus (100) of any of the preceding claims, wherein the housing (101) further comprises: a first door (142) having a first glass panel, a second door (144) having a second glass panel, at least two side panels (146A, 146B) covering a third side (101C) and a fourth side (101D) of the housing (101); and a floor mount (150) for providing support to the housing (101).

16. The dual-display apparatus (100) of any of the preceding claims, wherein the floor mount (150) further comprises an exhaust (152) for dispensing the ambient airflow (122).

17. The dual-display apparatus (100) of any of the preceding claims, wherein a number of perforations in: the first set of perforations (125A) of the first inlet part (126A) are in a range of 50 to 180; and the second set of perforations (125B) of the second inlet part (126B) and the second outlet part (128B) are in a range of 50 to 180.

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