CN115359736B - Display assembly and display device - Google Patents
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- CN115359736B CN115359736B CN202211164026.0A CN202211164026A CN115359736B CN 115359736 B CN115359736 B CN 115359736B CN 202211164026 A CN202211164026 A CN 202211164026A CN 115359736 B CN115359736 B CN 115359736B
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- 239000004065 semiconductor Substances 0.000 claims abstract description 54
- 238000002955 isolation Methods 0.000 claims description 15
- 239000010409 thin film Substances 0.000 claims description 10
- 239000002184 metal Substances 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 16
- 230000002035 prolonged effect Effects 0.000 abstract description 5
- 230000017525 heat dissipation Effects 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 238000009825 accumulation Methods 0.000 description 6
- 230000004888 barrier function Effects 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000009286 beneficial effect Effects 0.000 description 5
- 230000008901 benefit Effects 0.000 description 5
- 239000002390 adhesive tape Substances 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000969 carrier Substances 0.000 description 3
- 230000002349 favourable effect Effects 0.000 description 3
- 230000006872 improvement Effects 0.000 description 3
- 239000007769 metal material Substances 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000010521 absorption reaction Methods 0.000 description 2
- 238000005401 electroluminescence Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 125000006850 spacer group Chemical group 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 230000014509 gene expression Effects 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000010248 power generation Methods 0.000 description 1
- 238000002360 preparation method Methods 0.000 description 1
- 239000013589 supplement Substances 0.000 description 1
Classifications
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
- G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements
- G09F9/33—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes
- G09F9/335—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements being semiconductor devices, e.g. diodes being organic light emitting diodes [OLED]
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- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K7/00—Constructional details common to different types of electric apparatus
- H05K7/20—Modifications to facilitate cooling, ventilating, or heating
- H05K7/20954—Modifications to facilitate cooling, ventilating, or heating for display panels
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- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Optics & Photonics (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Thermal Sciences (AREA)
- Electroluminescent Light Sources (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The application provides a display assembly and a display device, and relates to the technical field of display. The display assembly includes a display panel; the driving chip is positioned at one side far away from the light-emitting surface of the display panel; the heat conduction battery is clamped between the driving chip and the display panel; the heat conduction battery comprises a first heat collecting layer, a second heat collecting layer, a first semiconductor layer and a second semiconductor layer, wherein the first semiconductor layer and the second semiconductor layer are positioned between the first heat collecting layer and the second heat collecting layer; the first heat collecting layer is in contact with the driving chip and is used for absorbing heat of the driving chip; the second heat collecting layer is in contact with the display panel and is used for absorbing heat of the display panel. The heat generated by the driving chip and the display panel during working is collected and exported through the heat conducting battery, so that the heat existing by the driving chip and the display panel during working is reduced, the service life of the display device is prolonged, and the display device can have good display effect.
Description
Technical Field
The present application relates to the field of display technologies, and more particularly, to a display assembly and a display device.
Background
In the prior art, a driving chip in a display device can generate heat during working, and especially when working in high-temperature weather, the heat of the driving chip can be higher and difficult to dissipate; since an OLED (Organic Electroluminescence Display, organic light emitting semiconductor) material used in a display device is fragile, a problem of a reduction in lifetime is likely to occur in a high temperature environment, and thus a problem of significant display unevenness is caused.
Therefore, it is desirable to provide a display device capable of improving the heat dissipation effect of the driving chip.
Disclosure of Invention
In view of the above, the present application provides a display assembly and a display device for improving the heat dissipation effect of a driving chip.
In a first aspect, the present application provides a display assembly comprising:
a display panel;
the driving chip is positioned at one side far away from the light-emitting surface of the display panel;
the heat conduction battery is clamped between the driving chip and the display panel; the heat conduction battery comprises a first heat collection layer, a second heat collection layer, a first semiconductor layer and a second semiconductor layer, wherein the first semiconductor layer and the second semiconductor layer are positioned between the first heat collection layer and the second heat collection layer;
the first heat collecting layer is in contact with the driving chip and is used for absorbing heat of the driving chip; the second heat collecting layer is in contact with the display panel and is used for absorbing heat of the display panel.
In a second aspect, the present application provides a display device comprising the display assembly.
Compared with the prior art, the display assembly and the display device provided by the application have the advantages that at least the following effects are realized:
the application provides a display component and a display device.A heat conduction battery is arranged between a driving chip and a display panel, and heat generated by the driving chip during operation is collected and exported through the heat conduction battery, so that the heat existing by the driving chip during operation is reduced; meanwhile, heat generated by the display panel during operation is collected and conducted out through the heat conducting battery, so that the heat existing in the display panel during operation is reduced; the problem that the service life of the adjacent OLED material is reduced due to heat accumulation is solved, so that the service life of the display device is prolonged, and the display device can have good display effect.
Of course, it is not necessary for any one product embodying the application to achieve all of the technical effects described above at the same time.
Other features of the present application and its advantages will become apparent from the following detailed description of exemplary embodiments of the application, which proceeds with reference to the accompanying drawings.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments of the application and together with the description, serve to explain the principles of the application.
FIG. 1 is a schematic top view of a display assembly according to an embodiment of the present application;
FIG. 2 is a cross-sectional view of AA' of FIG. 1 according to one embodiment of the present application;
FIG. 3 is a schematic diagram illustrating another embodiment of a display assembly according to the present application;
FIG. 4 is another cross-sectional view of BB' in FIG. 3 provided by an embodiment of the present application;
FIG. 5 is a schematic diagram of a display assembly including a plurality of thermally conductive batteries according to an embodiment of the present application;
FIG. 6 is a schematic diagram showing details of the region C in FIG. 5 according to an embodiment of the present application;
FIG. 7 is a cross-sectional view of DD' shown in FIG. 6 according to an embodiment of the present application;
fig. 8 is a schematic diagram of a display device according to an embodiment of the application.
Detailed Description
Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that: the relative arrangement of the components and steps, numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present application unless it is specifically stated otherwise.
The following description of at least one exemplary embodiment is merely exemplary in nature and is in no way intended to limit the application, its application, or uses.
Techniques, methods, and apparatus known to one of ordinary skill in the relevant art may not be discussed in detail, but are intended to be part of the specification where appropriate.
In all examples shown and discussed herein, any specific values should be construed as merely illustrative, and not a limitation. Thus, other examples of exemplary embodiments may have different values.
It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further discussion thereof is necessary in subsequent figures.
In the prior art, a driving chip in a display device can generate heat during working, and especially when working in high-temperature weather, the heat of the driving chip can be higher and difficult to dissipate; since an OLED (Organic Electroluminescence Display, organic light emitting semiconductor) material used in a display device is fragile, a problem of a reduction in lifetime is likely to occur in a high temperature environment, and thus a problem of significant display unevenness is caused. Therefore, it is desirable to provide a display device capable of improving the heat dissipation effect of the driving chip.
Specifically, the OLED material is fragile, especially at high temperature, the driving chip side can generate heat during operation, and after the problem of uneven color development occurs, the problem that the service life of the material is more reduced than that of the non-driving chip area is easily caused, and obvious display color difference is formed with other areas. In the prior art, heat dissipation is usually added by sticking a conductive adhesive tape to an IC, the adhesive tape is an insulating material, and the heat dissipation is difficult, that is, the heat dissipation effect of the conductive adhesive tape is poor when the conductive adhesive tape is used for heat dissipation.
In view of the above, the present application provides a display assembly and a display device for improving the heat dissipation effect of a driving chip.
Fig. 1 is a top view of a display assembly according to an embodiment of the present application, fig. 2 is a cross-sectional view of AA' in fig. 1 according to an embodiment of the present application, referring to fig. 1-2, a display assembly 100 is provided, including:
a display panel 10;
a driving chip 20 located at one side far from the light emitting surface of the display panel 10;
a heat conductive battery 30 sandwiched between the driving chip 20 and the display panel 10; the heat conductive battery 30 includes a first heat collecting layer 31, a second heat collecting layer 32, and a first semiconductor layer 33, a second semiconductor layer 34, the first semiconductor layer 33 and the second semiconductor layer 34 being located between the first heat collecting layer 31 and the second heat collecting layer 32;
the first heat collecting layer 31 is in contact with the driving chip 20 for absorbing heat of the driving chip 20; the second heat collecting layer 32 is in contact with the display panel 10 for absorbing heat of the display panel 10.
Specifically, the present application provides a display assembly 100, the display assembly 100 includes a display panel 10, a driving chip 20 and a heat conductive battery 30, the heat conductive battery 30 can be disposed between the driving chip 20 and the display panel 10, for absorbing and guiding out heat generated by the driving chip 20 and the display panel 10 during operation; the heat conductive battery 30 is disposed on the non-light-emitting surface side of the display panel 10, so as to avoid the influence on the normal display screen of the display panel 10 and reduce the screen duty ratio of the display screen.
The application provides a heat conduction battery 30, the heat conduction battery 30 comprises a first heat collection layer 31, a second heat collection layer 32, a first semiconductor layer 33 and a second semiconductor layer 34, wherein the first heat collection layer 31 and the second heat collection layer 32 clamp the first semiconductor layer 33 and the second semiconductor layer 34; and then set up first heat collecting layer 31 and drive chip 20 direct contact, second heat collecting layer 32 and display panel 10 direct contact, first heat collecting layer 31 through heat conduction battery 30 absorbs the produced heat of drive chip 20 at the during operation, realize the absorption, derive to the produced heat of drive chip 20, second heat collecting layer 32 through heat conduction battery 30 absorbs the produced heat of display panel 10 at the during operation, realize the absorption, derive to the produced heat of display panel 10, thereby the temperature of display panel 10, drive chip 20 at the during operation has been reduced, be favorable to avoiding the heat to gather and lead to the problem that the OLED material that is close to takes place the life-span reduction, avoid the drive chip 20, the problem that the local emergence of devices such as display panel 10 is damaged because of the heat, thereby be favorable to improving the life of display module 100, also be favorable to guaranteeing that display panel 10 can have good display effect, avoid appearing showing uneven problem, promote user experience.
With continued reference to fig. 1 and 2, optionally, the second semiconductor layer 34 is located between the first semiconductor layer 33 and the first heat collecting layer 31;
the first semiconductor layer 33 is a P-type semiconductor layer, and the second semiconductor layer 34 is an N-type semiconductor layer.
Specifically, the present application provides an alternative embodiment, in which the first semiconductor layer 33 and the second semiconductor layer 34 in the heat conductive cell 30 are specifically a P-type semiconductor layer and an N-type semiconductor layer, and when the display assembly 100 operates, the heat generated by the display panel 10 is generally lower than the heat generated by the driving chip 20, so that the N-type semiconductor layer may be disposed closer to the first heat collecting layer 31; that is, the second semiconductor layer 34 (N-type semiconductor layer) is provided between the first semiconductor layer 33 (P-type semiconductor layer) and the first heat collecting layer 31. The first heat collecting layer 31 in contact with the N-type semiconductor layer is closer to the side of the driving chip 20 with higher heat, so as to excite hot carriers and improve the heat conducting effect of the heat conducting battery 30, thereby being beneficial to prolonging the service life and increasing the service yield of the display assembly 100.
Fig. 3 is a schematic top view of another display module according to an embodiment of the present application, fig. 4 is a cross-sectional view of BB' in fig. 3 according to an embodiment of the present application, referring to fig. 1-4, optionally, the driving chip 20 includes a power terminal 40, where the power terminal 40 is electrically connected to the first heat collecting layer 31 through a first trace 41 and electrically connected to the second heat collecting layer 32 through a second trace 42.
Specifically, the heat conductive battery 30 provided by the present application includes a four-layer structure of a second heat collecting layer 32, a P-type semiconductor layer (first semiconductor layer 33), an N-type semiconductor layer (second semiconductor layer 34), and a first heat collecting layer 31 laminated in this order along a side of the display panel 10 directed to the driving chip 20, the driving chip 20 in contact with the first heat collecting layer 31 has a relatively high temperature in operation, and the display panel 10 in contact with the second heat collecting layer 32 has a lower temperature in operation than the driving chip 20, so that the heat conductive battery 30 provided by the present application can be used for thermoelectric power generation. In view of this, the present application provides an alternative arrangement, in which the driving chip 20 includes a power terminal 40 for receiving an electrical signal, the power terminal 40 is electrically connected to the first heat collecting layer 31 through the first wire 41 and electrically connected to the second heat collecting layer 32 through the second wire 42, so that the electrical energy generated by the heat conducting battery 30 can be transmitted to the driving chip 20 through the first wire 41 and the second wire 42, thereby driving the driving chip 20 to work.
That is, the heat conducting battery 30 provided by the application not only can be used for guiding out the heat generated by the driving chip 20 and/or the display panel 10 during operation, but also can be reused as a thermoelectric battery at the same time, and by converting the heat energy into the electric energy, the utilization of the redundant heat generated by the display assembly 100 during operation is realized, and the actual power consumption of the driving chip 20 and the display panel 10 during use is reduced, thereby realizing the improvement of economic benefits.
Fig. 5 is a schematic diagram of a display assembly including a plurality of heat conductive batteries according to an embodiment of the present application, and referring to fig. 1 to 5, optionally, at least 2 heat conductive batteries 30 are included, and at least 2 heat conductive batteries 30 are connected in series.
Specifically, the present application provides an alternative arrangement in which, as shown in fig. 1-4, only one thermally conductive battery 30 is provided in one display assembly 100; in addition, an alternative arrangement may be provided in which 2 or more heat conductive batteries 30 are provided in one display assembly 100, as shown in fig. 5; when 2 or more heat conductive batteries 30 are provided in one display module 100, the present application provides an alternative arrangement in which all the heat conductive batteries 30 included in the display module 100 are connected in series, so that the electromotive force of the heat conductive batteries 30 is increased, and the electromotive force generated by connecting all the heat conductive batteries 30 in series is utilized as a power source of the driving chip 20.
It should be noted that, in fig. 5, only the electrical connection relationship between the plurality of heat conductive batteries 30 disposed adjacently is illustrated by a line, and the actual detailed structure arrangement in the display assembly 100 is not represented.
In addition, the electromotive force generated by the series connection of the heat conductive batteries 30 may be used as a power source for the driving chip 20, or the electromotive force generated by the series connection of the heat conductive batteries 30 may be used as a power source for the display panel 10.
That is, the heat conducting battery 30 provided by the application not only can be used for guiding out the heat generated by the driving chip 20 and/or the display panel 10 during operation, but also can be reused as a thermoelectric battery at the same time, and by converting the heat energy into the electric energy, the utilization of the redundant heat generated by the display assembly 100 during operation is realized, and the actual power consumption of the driving chip 20 and the display panel 10 during use is reduced, thereby realizing the improvement of economic benefits.
Fig. 6 is a schematic detail view of the region C in fig. 5 according to an embodiment of the present application, and fig. 7 is a cross-sectional view of DD' in fig. 6 according to an embodiment of the present application, referring to fig. 1 to fig. 7, optionally, a first isolation pillar 51 and a second isolation pillar 52 are included between two adjacent heat conduction batteries 30 along a thickness direction perpendicular to the display assembly 100;
in a direction perpendicular to the thickness direction of the display assembly 100, a first connection member 53 is included between the first and second barrier ribs 51 and 52, and the first connection member 53 is used to electrically connect the first heat collecting layer 31 of one heat conductive cell 30 with the second heat collecting layer 32 of another heat conductive cell 30 disposed adjacently.
Specifically, when 2 or more heat conductive cells 30 are connected in series in the display assembly 100, the present application provides a manner of arranging the series connection between the heat conductive cells 30 in such a manner that a first isolation post 51 and a second isolation post 52 are included between two heat conductive cells 30 arranged adjacently, a first connection member 53 is included between the first isolation post 51 and the second isolation post 52, and the first connection member 53 is used for electrically connecting the first heat collecting layer 31 of one heat conductive cell 30 with the second heat collecting layer 32 of another heat conductive cell 30 arranged adjacently, that is, the series connection of two heat conductive cells 30 arranged adjacently is realized by the first connection member 53, and the crosstalk of electrical signals between the heat conductive cells 30 arranged adjacently is avoided by the presence of the first isolation post 51 and the second isolation post 52. The series connection of all the heat conductive batteries 30 included in the display assembly 100 is achieved through the first connection member 53, so that the electromotive force of the heat conductive batteries 30 is increased, and the electromotive force generated by the series connection of all the heat conductive batteries 30 is utilized as a power source for the driving chip 20 or as a power source for the display panel 10; that is, the heat conductive battery 30 is reused as a thermoelectric battery, and the utilization of the surplus heat generated in the operation process of the display assembly 100 is realized by converting the heat energy into the electric energy, thereby realizing the improvement of economic benefits.
With continued reference to fig. 1-7, optionally, in the thickness direction of the display assembly 100, the height H1 of the first isolation column 51 is equal to the distance between the side surface of the first heat collecting layer 31 of the heat conductive battery 30 away from the second heat collecting layer 32 and the side surface of the second heat collecting layer 32 close to the first heat collecting layer 31;
the height H2 of the second barrier ribs 52 is equal to the distance between the side surface of the second heat collecting layer 32 of the heat conductive battery 30, which is far from the first heat collecting layer 31, and the side surface of the first heat collecting layer 31, which is close to the second heat collecting layer 32, in the thickness direction of the display assembly 100.
Specifically, when 2 or more heat conduction cells 30 are connected in series in the display assembly 100, the present application provides an arrangement in which the heat conduction cells 30 are connected in series in such a manner that a first barrier rib 51 and a second barrier rib 52 are included between two heat conduction cells 30 adjacently arranged, and a height H1 of the first barrier rib 51 is equal to a distance between a side surface of the first heat collection layer 31 of the heat conduction cell 30, which is away from the second heat collection layer 32, and a side surface of the second heat collection layer 32, which is close to the first heat collection layer 31, in a thickness direction of the display assembly 100; in the thickness direction of the display assembly 100, the height H2 of the second barrier ribs 52 is equal to the distance between the side surface of the second heat collecting layer 32 of the heat conductive battery 30, which is far from the first heat collecting layer 31, and the side surface of the first heat collecting layer 31, which is close to the second heat collecting layer 32; so set up, can enough realize the setting of first spacer column 51, second spacer column 52, avoid taking place the crosstalk condition of signal of telecommunication between the heat conduction battery 30 of adjacent setting, can ensure again that a plurality of heat conduction batteries 30 of series connection appear to be the planarization structure, the display panel 10 that a plurality of heat conduction batteries 30 both sides of series connection set up of being convenient for, the normalized preparation of driver chip 20, guarantee the production yield of display module 100.
Referring to fig. 1 and 3, alternatively, the width of the display panel 10 is W1 along the direction perpendicular to the thickness of the display assembly 100 and along the length of the driving chip 20, and the length of the second heat collecting layer 32 is W2, W2 is equal to or less than W1.
Specifically, the present application further provides an alternative embodiment, in which the second heat collecting layer 32 is provided with a larger size, and specifically, taking the display assembly 100 as a rectangle as an example, the driving chip 20 is located on the lower side of the rectangular display assembly 100, and the width W2 of the second heat collecting layer 32 along the left-right direction is set to be as equal as possible to the width W1 of the display panel 10 along the left-right direction; the size of the second heat collecting layer 32 is increased, and the contact area between the heat conducting battery 30 and the display panel 10 is larger by arranging the second heat collecting layer 32 with a large area, so that heat generated by the display panel 10 can be led out by the heat conducting battery 30 more quickly, the heat generated by the heat conducting battery 30 when the display assembly 100 works can be dissipated quickly, the problem that the display panel 10 and other devices are damaged locally due to heat accumulation is avoided, the service life of the display assembly 100 is prolonged, the display panel 10 can have good display effect, the problem of uneven display is avoided, and the user experience is improved.
With continued reference to fig. 1 and 3, the second heat collecting layer 32 is optionally made of metal.
Specifically, the present application further provides an alternative embodiment, in which the second heat collecting layer 32 is made of a metal material, the metal material has good thermal conductivity, and the heat conducting battery 30 is made of a metal material and is adhered to the second heat collecting layer 32 of the display panel 10, so that the heat conducting battery 30 is beneficial to improving the efficiency of conducting heat generated by the heat conducting battery 30 during operation of the display panel 10, so that the heat conducting battery 30 can rapidly dissipate the heat generated by the heat conducting battery 100 during operation of the display assembly 100, and the problem that the display panel 10 and other devices are damaged locally due to heat accumulation is avoided, thereby being beneficial to improving the service life of the display assembly 100, ensuring that the display panel 10 has good display effect, avoiding the problem of uneven display, and improving the user experience.
Referring to fig. 1 and 2, optionally, the first heat collecting layer 31 is grounded, and/or the second heat collecting layer 32 is grounded.
Specifically, in the embodiment provided by the present application, the heat conducting battery 30 can be used as the heat dissipation of the display assembly 100, and can be reused as a thermoelectric battery when needed; when the heat conducting battery 30 is used only as heat dissipation, the present application provides an alternative arrangement mode, in which the first heat collecting layer 31 is directly grounded (not shown), and/or the second heat collecting layer 32 is directly grounded (not shown), so as to directly export the electromotive force generated by the heat conducting battery 30, thereby directly exporting the heat generated in the working process of the display assembly 100, avoiding the problem that the devices such as the driving chip 20 and the display panel 10 are damaged locally due to heat accumulation, thereby being beneficial to improving the service life of the display assembly 100, ensuring that the display panel 10 can have good display effect, avoiding the problem of uneven display, and improving the user experience.
Referring to fig. 1-7, alternatively, the heat conducting battery 30 is a thin film thermoelectric battery;
the first heat collecting layer 31 is a positive electrode of the thin film thermoelectric, and the second heat collecting layer 32 is a negative electrode of the thin film thermoelectric.
Specifically, the present application provides an alternative arrangement mode, namely, the heat conduction battery 30 is a thin film thermoelectric battery, which includes a second heat collecting layer 32, a P-type semiconductor layer (first semiconductor layer 33), an N-type semiconductor layer (second semiconductor layer 34) and a first heat collecting layer 31 laminated in order along the side of the display panel 10 directed to the driving chip 20, wherein the first heat collecting layer 31 is specifically configured as an anode of the thin film thermoelectric battery, and the second heat collecting layer 32 is a cathode of the thin film thermoelectric battery.
The thin film thermoelectric cell is a PN junction (P-type semiconductor layer and N-type semiconductor layer) cell, and more thermally excited carriers are generated on the side with higher temperature by utilizing inconsistent temperature difference at two ends of the PN junction to form electromotive force; at the same time, the temperature excited carriers convert the energy of the high temperature side into excitation energy, and the temperature of the high temperature side is reduced, thereby achieving the effect of cooling the driving chip 20. Furthermore, the serial connection of the thermoelectric cells can accumulate electromotive force to obtain ideal electromotive force for providing more electric energy for the display assembly 100 by using the thermoelectric cells.
Referring to fig. 3, it is further required to supplement that the front projection of the driving chip 20 on the plane of the display panel 10 is located in the front projection of the first heat collecting layer 31 on the plane of the display panel 10, the area of the first heat collecting layer 31 where the thermoelectric cell contacts with the driving chip 20 is larger than that of the driving chip 20, and the contact area between the heat conducting battery 30 and the driving chip 20 is larger by arranging the first heat collecting layer 31 with a large area, so that the heat generated by the driving chip 20 can be more rapidly led out by the heat conducting battery 30, the problem that the driving chip 20 is locally damaged due to heat accumulation is avoided, the service life of the display assembly 100 is prolonged, and the user experience is improved.
It should be further added that the front projection of the first heat collecting layer 31 on the plane of the display panel 10 is located in the front projection of the second heat collecting layer 32 on the plane of the display panel 10, that is, the area of the second heat collecting layer 32 contacting the display panel 10 in the heat conducting battery 30 is optionally larger than the area of the first heat collecting layer 31 contacting the driving chip 20, so as to further increase the heat dissipation on the back surface of the display panel 10. Of course, this is just an alternative arrangement provided by the present application, and the user may set the size relationship of the areas of the first heat collecting layer 31 and the second heat collecting layer 32 according to the needs.
Fig. 8 is a schematic diagram of a display device according to an embodiment of the present application, please refer to fig. 8 in conjunction with fig. 1-7, and further provides a display device 200 according to the same inventive concept, wherein the display device 200 includes a display assembly 100, and the display assembly 100 is any one of the display assemblies 100 provided by the present application.
It should be noted that, in the embodiment of the display device 200 provided in the embodiment of the present application, reference may be made to the embodiment of the display assembly 100 described above, and repeated description is omitted. The display device 200 provided by the present application may be: any product and component with touch control function such as a mobile phone, a tablet computer, a television, a touch controller, a notebook computer, a navigator and the like.
According to the display assembly and the display device provided by the embodiment of the application, at least the following beneficial effects are realized:
the application provides a display component and a display device.A heat conduction battery is arranged between a driving chip and a display panel, and heat generated by the driving chip during operation is collected and exported through the heat conduction battery, so that the heat existing by the driving chip during operation is reduced; meanwhile, heat generated by the display panel during operation is collected and conducted out through the heat conducting battery, so that the heat existing in the display panel during operation is reduced; the problem that the service life of the adjacent OLED material is reduced due to heat accumulation is solved, so that the service life of the display device is prolonged, and the display device can have good display effect. In addition, the potential energy generated by the temperature difference in the heat conduction battery can be used as a power supply driving signal for driving a chip or a display screen in the display device, so that the power consumption of the display device is reduced.
While certain specific embodiments of the application have been described in detail by way of example, it will be appreciated by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the application. It will be appreciated by those skilled in the art that modifications may be made to the above embodiments without departing from the scope and spirit of the application. The scope of the application is defined by the appended claims.
Claims (8)
1. A display assembly, comprising:
a display panel;
the driving chip is positioned at one side far away from the light-emitting surface of the display panel;
the heat conduction battery is clamped between the driving chip and the display panel; the heat conduction battery comprises a first heat collection layer, a second heat collection layer, a first semiconductor layer and a second semiconductor layer, wherein the first semiconductor layer and the second semiconductor layer are positioned between the first heat collection layer and the second heat collection layer;
the first heat collecting layer is in contact with the driving chip and is used for absorbing heat of the driving chip; the second heat collecting layer is contacted with the display panel and is used for absorbing heat of the display panel;
the second semiconductor layer is located between the first semiconductor layer and the first heat collecting layer;
the first semiconductor layer is a P-type semiconductor layer, and the second semiconductor layer is an N-type semiconductor layer;
a first isolation column and a second isolation column are arranged between two adjacent heat conduction batteries along the thickness direction perpendicular to the display assembly;
a first connecting piece is arranged between the first isolation column and the second isolation column along the thickness direction perpendicular to the display component, and is used for electrically connecting the first heat collecting layer of one heat conducting battery with the second heat collecting layer of the other heat conducting battery which is adjacently arranged;
the height of the first isolation column is equal to the distance between the surface of one side of the first heat collecting layer of the heat conduction battery, which is far away from the second heat collecting layer, and the surface of one side of the second heat collecting layer, which is close to the first heat collecting layer, along the thickness direction of the display component;
the height of the second isolation column is equal to the distance between the side surface of the second heat collecting layer of the heat conduction battery, which is far away from the first heat collecting layer, and the side surface of the first heat collecting layer, which is close to the second heat collecting layer, along the thickness direction of the display component.
2. The display assembly of claim 1, wherein the driver chip includes a power terminal electrically connected to the first heat collection layer through a first trace and electrically connected to the second heat collection layer through a second trace.
3. The display assembly of claim 1, comprising at least 2 thermally conductive cells, at least 2 of the thermally conductive cells being connected in series.
4. The display module according to claim 1, wherein the width of the display panel is W1 in a direction perpendicular to the thickness direction of the display module and in a length direction of the driving chip, and the length of the second heat collecting layer is W2, W2 is equal to or less than W1.
5. The display assembly of claim 1, wherein the second heat collection layer is made of a metal.
6. The display assembly of claim 1, wherein the first heat collection layer is grounded and/or the second heat collection layer is grounded.
7. The display assembly of claim 1, wherein the thermally conductive cell is a thin film thermoelectric cell;
the first heat collecting layer is the positive electrode of the thin film thermoelectric, and the second heat collecting layer is the negative electrode of the thin film thermoelectric.
8. A display device comprising a display assembly as claimed in any one of claims 1 to 7.
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| CN115359736A (en) | 2022-11-18 |
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