Electronic display assembly

Abstract

An electronic display assembly (1) is provided. The electronic display assembly (1) includes a case (10), a first display module (12) disposed on a first side (101) of the case (10), a first heat exchanger (11) within the case (10), a second display module (12) disposed on a second side (102) opposite the first side (101) of the case (10), and the second heat exchanger (11) within the case (10). The electronic display assembly (1) also includes a first sealing component (11r1, 11r2) disposed around the first display module (12), and a first transparent lid (13) disposed on the first side (101) of the case (10) to cover the first display module (12). The electronic display assembly (1) also includes a second sealing component (11r1, 11r2) disposed around the second display module (12) and a second transparent lid (13) disposed on a second side (102) of the case (10) to cover the second display module (12).

Description

Technical Field

[0001] The present disclosure generally relates to an electronic display assembly.

Background Art

[0002] To prevent overheating, a cooling system can be employed in a display device. Conventionally, the cooling system can include an evaporator for cooling air and a fan for circulating the cooled air. Such a cooling system can be bulky and there may be a need to improve its effectiveness.

[0003] Furthermore, the circulation loop of the cooling system is often airtight to prevent the ingress of dust and other contaminants. However, heat and moisture can accumulate over time, which may reduce the reliability of the display device.

Summary of the Invention

[0004] In one or more embodiments, the Disclosure provides an electronic display assembly. The electronic display assembly includes a case, a first display module located on a first side of the case, and a first heat exchanger located within the case and thermally connected to the first display module. The first heat exchanger includes a first channel and a second channel. The first channel and the first display module define a first internal heat exchange loop, and the second channel defines at least a portion of a first external heat dissipation path. The electronic display assembly also includes a second display module located on a second side of the case opposite to the first side, and a second heat exchanger located within the case and thermally connected to the second display module. The second heat exchanger includes a third channel and a fourth channel. The third channel and the second display module define a second internal heat exchange loop, and the fourth channel defines at least a portion of a second external heat dissipation path. The electronic display assembly also includes a first sealing component arranged around a first display module and a first transparent cover positioned on a first side of the case to cover the first display module. The first transparent cover is removably attached to the first sealing component. The electronic display assembly also includes a second sealing component arranged around a second display module and a second transparent cover positioned on a second side of the case to cover the second display module. The second transparent cover is removably attached to the second sealing component.

[0005] In one or more embodiments, the Disclosure provides an electronic display assembly. The electronic display assembly includes a case, a first display module located on a first side of the case, and a first heat exchanger fixed within the case and thermally connected to the first display module. The first heat exchanger is configured to function as a first support substrate in direct contact with the first display module. The first heat exchanger includes a first channel and a second channel. The first channel and the first display module define a first internal heat exchange loop, and the second channel defines at least a portion of a first external heat dissipation path. The electronic display assembly also includes a second display module located on a second side of the case opposite to the first side, and a second heat exchanger fixed within the case and thermally connected to the second display module. The second heat exchanger is configured to function as a second support substrate in direct contact with the second display module. The second heat exchanger includes a third channel and a fourth channel. The third channel and the second display module define a second internal heat exchange loop, and the fourth channel defines at least a portion of a second external heat dissipation path. The electronic display assembly also includes a first transparent cover for covering the first display module and a second transparent cover for covering the second display module. The first transparent cover is located on a first side of the case and is rotatably connected to the case. The second transparent cover is located on a second side of the case and is rotatably connected to the case. [Brief explanation of the drawing]

[0006] The aspects of this disclosure will be readily understood from the following detailed description when read together with the attached drawings. Please note that various features may not be depicted to scale. The dimensions of various features may be increased or decreased as appropriate for clarity of the description.

[0007] [Figure 1] This is a cross-sectional view of an exemplary electronic display assembly according to one embodiment of the present disclosure.

[0008] [Figure 2] This figure shows an exemplary electronic display assembly of Figure 1 having a transparent cover that exposes an internal heat exchange loop to the environment, according to one embodiment of the present disclosure.

[0009] [Figure 3] This is a top view of an exemplary electronic display assembly according to one embodiment of the present disclosure.

[0010] Common reference numbers are used throughout the drawings and detailed description to indicate identical or similar elements. This disclosure will become more apparent from the following detailed description in conjunction with the attached drawings. [Modes for carrying out the invention]

[0011] The following disclosure provides many different embodiments or examples for implementing different features of the subject matter provided. Specific examples of components and arrangements are described herein. Naturally, these are merely examples and are not intended to be limiting. This disclosure may repeat reference numbers and / or letters in various examples. This repetition is for simplification and clarity and does not in itself define relationships between the various embodiments and / or configurations described.

[0012] Embodiments of this disclosure are described in detail below. However, it should be understood that this disclosure provides many applicable concepts that can be embodied in a wide variety of specific circumstances. The specific embodiments described are illustrative and do not limit the scope of this disclosure.

[0013] Figure 1 is a cross-sectional view of an exemplary electronic display assembly 1 according to one embodiment of the present disclosure. In some embodiments, the electronic display assembly 1 may include a case 10, a heat exchanger 11, a display module 12, a transparent cover 13, an internal flow generator 14, and an external flow generator 15.

[0014] The case (or housing) 10 may have an inlet 10i, an outlet 10o on the opposite side of the inlet 10i, and a central portion 10c connecting the inlet 10i and the outlet 10o. The central portion 10c may include or define a central path c6 that is connected to or fluidically conducts to the external environment through the inlet 10i and the outlet 10o. For example, external or ambient airflow may enter the central portion 10c through the inlet 10i and exit the central portion 10c through the outlet 10o.

[0015] The central portion 10c of case 10 may have a side 101 and a side 102 opposite to side 101. Spaces may be defined on side 101 and side 102, respectively.

[0016] For example, the transparent lid 13 and case 10 may define a space on side 101 for housing a set of components, including, but not limited to, a heat exchanger 11, a display module 12, and an internal flow generator 14. Similarly, another transparent lid and case 10 may define a space on side 102 for housing another heat exchanger, another display module, and another internal flow generator. The electronic display assembly 1 may include a double-sided display. Since the components on both sides are similar, for the sake of brevity and clarity, only the components on side 101 are given reference numbers in the figure and described in detail.

[0017] The heat exchanger 11 may be positioned in a space defined by the case 10 on its side 101. In some embodiments, the heat exchanger 11 may be mounted or fixed to the case 10. In some embodiments, the heat exchanger 11 may be mounted to the case 10 via one or more sealing components 11r1 and 11r2. In some embodiments, the sealing components 11r1 and 11r2 may include rubber gaskets or O-rings. In some embodiments, the sealing components 11r1 and 11r2 may be positioned between the central portion 10c and the heat exchanger 11.

[0018] In some embodiments, the heat exchanger 11 may be configured to function as a support substrate for the display module 12. For example, the heat exchanger 11 can provide mechanical support to the display module 12. For example, the heat exchanger 11 may be in direct contact with the display module 12 (such as the backlight layer 12c of the display module 12). For example, the display module 12 may have a front surface configured to emit light and a rear surface that is in direct contact with the heat exchanger 11.

[0019] In the case of large display devices, support substrates can significantly increase the thickness and weight of the display device. Furthermore, support substrates placed between the display module and the heat exchanger can also reduce the efficiency of heat dissipation. By providing a heat exchanger 11 that also functions as a support substrate, the thickness and weight of the display device can be reduced while improving heat dissipation efficiency.

[0020] In some embodiments, the heat exchanger 11 may be thermally connected to the display module 12 and the case 10 (such as the central portion 10c). In some embodiments, the heat exchanger 11 may be integrally formed or formed as a single piece. In some embodiments, the heat exchanger 11 may include aluminum extrusion (such as aluminum t-slot extrusion). In some embodiments, the heat exchanger 11 may include multiple channels or cells. For example, the heat exchanger 11 may include channels c1 and c4.

[0021] Channel c1 may be thermally connected adjacent to the display module 12. Channel c1 can be connected to or fluidically conductive to channels c2 and c3 (details below). Channels c1, c2, and c3 can define an internal heat exchange loop i1.

[0022] Channel c4 may be adjacent to or thermally connected to channel c1. Channel c4 may be adjacent to or thermally connected to the central portion 10c. Channel c4 may be connected to or fluidly conduct with the central path c6 of the central portion 10c. The channel c4, the central path c6, and the channel c5 of another heat exchanger on the side surface 102 can define an external heat dissipation path e1. In some embodiments, the external heat dissipation path e1 may be configured to dissipate heat from the channel c1. In some embodiments, the flow direction of the channel c1 may be opposite to the flow direction of the channel c4.

[0023] The display module 12 may be disposed in the space defined by the case 10 on the side surface 101. In some embodiments, the display module 12 can include a display panel 12a, an optical film 12b, and a backlight layer 12c. The display panel 12a may be disposed between the optical film 12b and the transparent cover 13. The optical film 12b may be disposed between the display panel 12a and the backlight layer 12c. The backlight layer 12c may be disposed between the optical film 12b and the heat exchanger 11.

[0024] The display panel 12a may include, for example, a glass panel, a liquid crystal panel, a plastic panel, etc. The optical film 12b may include, for example, a diffuser, a reflector, a polarizer, a filter, a light guide element, a lens, and other optical elements. The backlight layer 12c may include a plurality of light-emitting pixels.

[0025] In some embodiments, the display module 12 can include a channel c2 between the display panel 12a and the optical film 12b.

[0026] The transparent cover 13 may be disposed on the side surface 101 of the case 10. The transparent cover 13 may be rotatably connected to the case 10 via a pivot joint 11p. The transparent cover 13 may be removably attached to the case 10 via one or more sealing components 13r1 and 13r2. In some embodiments, the sealing components 13r1 and 13r2 may include a rubber gasket or an O-ring. In some embodiments, the sealing components 13r1 and 13r2 may be disposed between the transparent cover 13 and the case 10. In some embodiments, the sealing components 13r1 and 13r2 may be disposed between the transparent cover 13 and the display module 12. In some embodiments, the sealing components 13r1 and 13r2 may be disposed around the display module 12.

[0027] In some embodiments, the transparent cover 13 may be configured to cover the display module 12. In some embodiments, the display panel 12a of the transparent cover 13 and the display module 12 may define a channel c3. For example, the channel c3 may be defined between the transparent cover 13 and the display panel 12a.

[0028] In some embodiments, the electronic display assembly 1 may include an internal heat exchange loop i1 on the side surface 101. As described above, the internal heat exchange loop i1 may be defined by one or more channels of the side surface 101, such as channel c1, channel c2, and channel c3. The internal heat exchange loop i1 may be configured to cool the components on the side surface 101. In some embodiments, the internal heat exchange loop i1 may be isolated from the external environment. For example, the external air flow may not enter the internal heat exchange loop i1.

[0029] The internal flow generator 14 may be located in the space defined by the case 10 on the side 101. In some embodiments, the internal flow generator 14 may be located adjacent to channel c1. In some embodiments, the internal flow generator 14 may be connected to or fluidically conduct to channels c1, c2, and c3. In some embodiments, the internal flow generator 14 may include a fan. In some embodiments, the internal flow generator 14 may be configured to generate an internal airflow through the internal heat exchange loop i1.

[0030] Similarly, the electronic display assembly 1 may include an internal heat exchange loop i2 on its side surface 102. The internal heat exchange loop i2 may be defined by one or more channels on the side surface 102. The internal heat exchange loop i2 may be configured to cool components on the side surface 102. In some embodiments, the internal heat exchange loop i2 may be isolated from the external environment. For example, external airflow may not enter the internal heat exchange loop i2.

[0031] In some embodiments, the internal heat exchange loop i2 may be isolated from the internal heat exchange loop i1. For example, the internal heat exchange loop i2 may be separated or independent from the internal heat exchange loop i1. For example, the internal heat exchange loop i2 may not be connected to or fluidically conductive to the internal heat exchange loop i1. In these cases, contamination from the external environment, such as dust or moisture, does not enter the space housing the display module 12 and other electrical components, thus slowing the aging degradation of the components in the space.

[0032] In some embodiments, the electronic display assembly 1 may include an external heat dissipation path e1. As described above, the external heat dissipation path e1 may be defined by a channel c4 of the heat exchanger 11 on side 101, a channel c5 of another heat exchanger on side 102, and a central path c6. Channels c4 and c5 may each be connected between an inlet 10i and an outlet 10o via the central path c6. Channels c4 and c5 can be connected to or fluidically conducted to the external environment via the central path c6, the inlet 10i, and the outlet 10o.

[0033] The external heat dissipation path e1 may be configured to conduct heat from the internal heat exchange loops i1 and i2 to the external environment. For example, the external heat dissipation path e1 may be shared by the internal heat exchange loops i1 and i2.

[0034] In some embodiments, the external heat dissipation path e1 may be isolated from the internal heat exchange loops i1 and i2. For example, the external heat dissipation path e1 may be separated or independent from the internal heat exchange loops i1 and i2. For example, the external heat dissipation path e1 may not be connected to or fluidically conductive to the internal heat exchange loops i1 and i2.

[0035] The external flow generator 15 may be positioned adjacent to the central portion 10c of the case 10. The external flow generator 15 can be connected to or fluidically connected to channels c4, c5, and the central path c6. In some embodiments, the external flow generator 15 may include a fan. In some embodiments, the external flow generator 15 may be configured to generate an external airflow through the external heat dissipation path e1.

[0036] According to some embodiments of the present disclosure, the size of the electronic display assembly 1 is reduced because the heat from the internal heat exchange loops i1 and i2 can be dissipated through a single path (i.e., a central path c6).

[0037] In addition, only one external flow generator 15 is required, and the display modules of the electronic display assemblies 1 on both sides can be cooled simultaneously. The air pressure generated by the external flow generator 15 is distributed to both channels c4 and c5. Therefore, the air pressure in either channel c4 or channel c5 is lower than if the air pressure generated by the external flow generator 15 were applied to only one channel.

[0038] Generally, heat dissipation efficiency can be increased by increasing the rotational speed of the flow generator. In that case, wind pressure and noise caused by wind pressure also increase. According to some embodiments of this disclosure, the wind pressure in channel c4 or c5 is lower than when only one channel is connected to the external flow generator 15. As a result, noise caused by wind pressure is eliminated while the heat dissipation efficiency of the electronic display assembly 1 remains unchanged.

[0039] Figure 2 shows an exemplary electronic display assembly 1 of Figure 1, according to one embodiment of the present disclosure, which has a transparent cover 13 that exposes an internal heat exchange loop i1 to the environment.

[0040] In some embodiments, as shown in Figure 1, when the transparent lid 13 is closed (or in a first position), the transparent lid 13 may be attached to the case 10 via sealing components 13r1 and 13r2. The transparent lid 13 and sealing components 13r1 and 13r2 can isolate the internal space of the case 10 (such as the internal heat exchange loop i1) from the external environment (such as air). For example, the transparent lid 13 and sealing components 13r1 and 13r2 can define an airtight space.

[0041] In some embodiments, as shown in Figure 2, when the transparent lid 13 is opened (or in a second position), the internal space of the case 10 (such as the internal heat exchange loop i1) may be exposed to the external environment (such as air).

[0042] According to some embodiments of this disclosure, the transparent lid 13 can be opened and closed, allowing the internal space of the case 10 to be cleaned and maintained as needed. This enhances the reliability of the electronic display assembly 1.

[0043] Figure 3 is a top view of an exemplary electronic display assembly 3 according to one embodiment of the present disclosure.

[0044] The electronic display assembly 3 may include a three-sided display. For example, the electronic display assembly 3 may include a central portion 33 and display modules 30, 31, and 32. The display modules 30, 31, and 32 may be arranged on three sides of the central portion 33. The display modules 30, 31, and 32 may be arranged around the central portion 33.

[0045] Display modules 30, 31, and 32 may each be similar to display module 12 in Figure 1. The electronic display assembly 3 may include, but is not limited to, other components, including a transparent cover, a heat exchanger, and an internal flow generator, each on three sides of the central portion 33. Other components are not shown in Figure 3 for brevity and clarity.

[0046] The electronic display assembly 3 may also include an external flow generator positioned adjacent to the central portion 33. Heat from the display modules 30, 31, and 32 can be dissipated through an external heat dissipation path defined by the central portion 33.

[0047] The number of display modules may be determined based on the size and radiance efficiency (or other design requirements) of the electronic display assembly 3, and is not limited to this embodiment.

[0048] Spatial relative terms such as “directly below,” “down,” “bottom,” “up,” “top,” “left,” and “right” may be used herein to facilitate descriptions of the relationship between one element or feature and another, as shown in the figures. Spatial relative terms are intended to encompass different orientations of the device in use or operation, in addition to the orientation shown in the figures. The device may be oriented in other directions (it may be rotated 90 degrees or in other directions), and the spatial relative descriptors used herein may be interpreted accordingly. When an element is referred to as “connected” or “joined” to another element, it should be understood that it may be directly connected or joined to the other element, or there may be an intervening element.

[0049] Where used herein, the terms “approximately,” “substantially,” “effectively,” and “about” are used to describe and explain small variations. Where used in connection with events or circumstances, these terms may refer to the event or circumstances occurring exactly, as well as the event or circumstances occurring approximately. Where used herein in relation to a given value or range, the term “about” generally means within ±10%, ±5%, ±1%, or ±0.5% of a given value or range. Ranges may be expressed herein as from one endpoint to another, or between two endpoints. All ranges disclosed herein include endpoints unless otherwise specified. Where a number or characteristic refers to something that is “substantially” the same, this term may refer to a value within ±10%, ±5%, ±1%, or ±0.5% of the mean of the value.

[0050] The above outlines the features of some embodiments and detailed aspects of the present disclosure. Embodiments described herein can readily be used as a basis for designing or modifying other processes and structures to perform the same or similar purposes and / or achieve the same or similar advantages of the embodiments introduced herein. Such equivalent configurations may be made in any way that does not deviate from the spirit and scope of the present disclosure, and may be made in any way that does not deviate from the spirit and scope of the present disclosure.

Claims

1. An electronic display assembly, The case and, A first display module is positioned on the first side of the case, A first heat exchanger located within the case and thermally connected to the first display module, the first heat exchanger comprising a first channel and a second channel, the first channel and the first display module defining a first internal heat exchange loop, and the second channel defining at least a portion of a first external heat dissipation path, A second display module is positioned on the second side of the case opposite to the first side, A second heat exchanger located within the case and thermally connected to the second display module, the second heat exchanger comprising a third channel and a fourth channel, the third channel and the second display module defining a second internal heat exchange loop, and the fourth channel defining at least a portion of a second external heat dissipation path, A first sealing component arranged around the first display module, A first transparent cover is provided on the first side of the case, which is detachably attached to the first sealing component and covers the first display module. A second sealing component arranged around the second display module, A second transparent cover is positioned on the second side of the case, is removably attached to the second sealing component, and covers the second display module. Equipped with, The first internal heat exchange loop is isolated from the first external heat dissipation path, and the second internal heat exchange loop is isolated from the second external heat dissipation path. Electronic display assembly.

2. The first transparent lid is rotatably connected to the case via a first pivot joint. The electronic display assembly according to claim 1.

3. The second transparent lid is rotatably connected to the case via a second pivot joint, The electronic display assembly according to claim 2.

4. The first transparent lid includes a first position and a second position relative to the case, wherein the first transparent lid and the first sealing component in the first position seal the first internal heat exchange loop within the case and isolate the first internal heat exchange loop from the external environment, and the first transparent lid in the second position exposes the first internal heat exchange loop to the external environment. The electronic display assembly according to claim 2.

5. The second transparent lid includes a first position and a second position relative to the case, wherein the second transparent lid and the second sealing component in the first position seal the second internal heat exchange loop within the case and isolate the second internal heat exchange loop from the external environment, and the second transparent lid in the second position exposes the second internal heat exchange loop to the external environment. The electronic display assembly according to claim 4.

6. The first internal heat exchange loop is isolated from the second internal heat exchange loop. The electronic display assembly according to claim 1.

7. Each of the first external heat dissipation path and the second external heat dissipation path is connected between the inlet and outlet of the case. The electronic display assembly according to claim 1.

8. The system further comprises a central path connected to the first external heat dissipation path and the second external heat dissipation path. The electronic display assembly according to claim 7.

9. The system further comprises a first internal flow generator positioned adjacent to the first channel and a second internal flow generator positioned adjacent to the third channel. The electronic display assembly according to claim 1.

10. The system further comprises an external flow generator that is fluidically connected to the first external heat dissipation path and the second external heat dissipation path. The electronic display assembly according to claim 1.

11. The electronic display assembly according to claim 1, wherein the first heat exchanger is fixed to the case and configured to function as a first support substrate that is in direct contact with the first display module.

12. The second heat exchanger is fixed to the case and is configured to function as a second support substrate that directly contacts the second display module. The electronic display assembly according to claim 11.

13. An electronic display assembly, The case and, A first display module is positioned on the first side of the case, A first heat exchanger fixed within the case and thermally connected to the first display module, wherein the first heat exchanger is configured to function as a first support substrate in direct contact with the first display module, the first heat exchanger comprises a first channel and a second channel, the first channel and the first display module define a first internal heat exchange loop, and the second channel defines at least a portion of a first external heat dissipation path, A second display module is positioned on the second side of the case opposite to the first side, A second heat exchanger fixed within the case and thermally connected to the second display module, wherein the second heat exchanger is configured to function as a second support substrate in direct contact with the second display module, the second heat exchanger comprises a third channel and a fourth channel, the third channel and the second display module define a second internal heat exchange loop, and the fourth channel defines at least a portion of a second external heat dissipation path, A first transparent cover is provided on the first side of the case, rotatably connected to the case, and for covering the first display module. A second transparent cover is provided on the second side of the case, rotatably connected to the case, and for covering the second display module. Equipped with, The first internal heat exchange loop is isolated from the first external heat dissipation path, and the second internal heat exchange loop is isolated from the second external heat dissipation path. Electronic display assembly.

14. The first transparent lid includes a first position and a second position relative to the case, wherein the first transparent lid in the first position seals the first internal heat exchange loop within the case and isolates the first internal heat exchange loop from the external environment, and the first transparent lid in the second position exposes the first internal heat exchange loop to the external environment. The electronic display assembly according to claim 13.

15. The second transparent lid includes a first position and a second position relative to the case, wherein the second transparent lid in the first position seals the second internal heat exchange loop within the case, isolating the second internal heat exchange loop from the external environment, and the second transparent lid in the second position exposes the second internal heat exchange loop to the external environment. The electronic display assembly according to claim 14.

16. The first internal heat exchange loop is isolated from the second internal heat exchange loop. The electronic display assembly according to claim 13.

17. Each of the first external heat dissipation path and the second external heat dissipation path is connected between the inlet and outlet of the case. The electronic display assembly according to claim 13.

18. The system further comprises a central path connected to the first external heat dissipation path and the second external heat dissipation path. The electronic display assembly according to claim 17.

19. The system further comprises a first internal flow generator positioned adjacent to the first channel and a second internal flow generator positioned adjacent to the third channel. The electronic display assembly according to claim 13.

20. The system further comprises an external flow generator that is fluidically connected to the first external heat dissipation path and the second external heat dissipation path. The electronic display assembly according to claim 13.

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