Flattening components and display devices

Abstract

This application belongs to the field of display technology, specifically relating to a leveling component and a display device. The leveling component is disposed between a back panel and a display panel. The leveling component includes: a housing, within which are a first chamber and a second chamber. The first chamber is located on the side of the second chamber away from the back panel. A support column is disposed within the first chamber, extending from the second chamber to the first chamber. A heating element is disposed within the second chamber. The heating element releases heat to the protruding position when the back panel protrudes towards the display panel. The support column located at the protruding position retracts under the influence of heat, causing the display panel to move towards the back panel, thus maintaining the flatness of the display panel. This application, through the leveling component, ensures the flatness of the display panel and guarantees the display effect of the display device.

Description

Technical Field

[0001] This application belongs to the field of display technology, specifically relating to a flattening component and a display device. Background Technology

[0002] Organic light-emitting diode (OLED) display panels have many advantages, such as self-illumination, low driving voltage, high luminous efficiency, short response time, high clarity and contrast, near 180° viewing angle, wide operating temperature range, and the ability to achieve flexible display and large-area full-color display. They are widely recognized in the industry as the display panels with the greatest development potential.

[0003] Although organic light-emitting diodes (OLEDs) possess the aforementioned characteristics, their in-plane self-emissive nature places extremely high demands on the overall flatness of the screen. Poor flatness on the side of the back panel closest to the display panel can easily lead to uneven screen height on that side, resulting in varying light-emitting distances between the in-plane light-emitting units and consequently causing localized bright spots on the display panel. Summary of the Invention

[0004] The purpose of this application is to provide a leveling component and a display device that can ensure the flatness of the display panel, thereby ensuring the display effect of the display device.

[0005] The first aspect of this application provides a leveling component disposed between a back panel and a display panel, the leveling component comprising:

[0006] The housing has a first chamber and a second chamber inside. The first chamber is located on the side of the second chamber away from the back plate. A support column is provided in the first chamber and extends from the second chamber to the first chamber.

[0007] A heating element is disposed in the second chamber;

[0008] The heating element can release heat to the protruding position when the back plate protrudes towards the display panel. The support column located at the protruding position can retract under the action of heat, causing the display panel to move towards the back plate side so that the display panel remains flat.

[0009] In one exemplary embodiment of this application, the second chamber includes a first inner wall and a second inner wall disposed opposite to each other, wherein the first inner wall is disposed on the side of the second inner wall close to the first chamber;

[0010] When the first inner wall comes into contact with the second inner wall, the heating element releases heat toward the protruding position.

[0011] In one exemplary embodiment of this application, the heating element includes a first resistor and a second resistor, the first resistor being attached to the first inner wall and the second resistor being attached to the second inner wall, the first resistor and the second resistor being opposite in polarity;

[0012] Heat is generated when the first resistor and the second resistor come into contact.

[0013] In one exemplary embodiment of this application, the support column extends vertically in the direction from the second chamber to the first chamber.

[0014] In one exemplary embodiment of this application, the support column is bent and extended in the direction from the second chamber to the first chamber.

[0015] In one exemplary embodiment of this application, the first cavity is provided with a plurality of support columns arranged at uniform intervals.

[0016] In one exemplary embodiment of this application, the first chamber is filled with a protective gas; and / or

[0017] The second chamber is filled with protective gas.

[0018] A second aspect of this application provides a display device, including a display panel, a back plate, and a leveling component as described in any one of the preceding claims, wherein the leveling component is disposed between the back plate and the display panel.

[0019] In another exemplary embodiment of this application, the flattening component is bonded to the display panel and / or the back panel.

[0020] In another exemplary embodiment of this application, the orthographic projection area of ​​the display panel on the back panel is located within the orthographic projection area of ​​the flattening component on the back panel.

[0021] The flattening component and display device of this application have the following beneficial effects:

[0022] The leveling component includes a housing and a heating element. The housing contains a first chamber and a second chamber, and the heating element is located in the second chamber. When the back panel protrudes towards the display panel, the heating element releases heat to the protruding part. The support column located at the protruding part can retract under the action of heat, pulling the protruding part of the display panel towards the back panel side, so as to keep the display panel screen flat and prevent the light-emitting units inside the display panel from protruding outward. That is, it ensures that the light-emitting unit is at the same distance from the human eye, avoids the problem of local bright spots, ensures the display effect of the display device, and improves the user experience.

[0023] Other features and advantages of this application will become apparent from the following detailed description, or may be learned in part from practice of this application.

[0024] It should be understood that the above general description and the following detailed description are exemplary and explanatory only, and do not limit this application. Attached Figure Description

[0025] The accompanying drawings, which are incorporated in and form part of this specification, illustrate embodiments consistent with this application and, together with the description, serve to explain the principles of this application. It is obvious that the drawings described below are merely some embodiments of this application, and those skilled in the art can obtain other drawings based on these drawings without any inventive effort.

[0026] Figure 1 This illustration shows a structural schematic diagram of a leveling component provided in Embodiment 1 or Embodiment 2 of this application;

[0027] Figure 2 This illustration shows a schematic diagram of the protruding display panel structure provided in Embodiment 1 or Embodiment 2 of this application;

[0028] Figure 3 This illustration shows a schematic diagram of the structure of the support column for flattening the display panel provided in Embodiment 1 or Embodiment 2 of this application;

[0029] Figure 4 A schematic diagram of the structure of the curved support column provided in Embodiment 1 or Embodiment 2 of this application is shown.

[0030] Explanation of reference numerals in the attached figures:

[0031] 10. Display device; 100. Leveling assembly; 110. Housing; 111. Barrier plate; 112. First chamber; 113. Second chamber; 114. Support column; 120. Heating element; 121. First resistor; 122. Second resistor; 200. Back plate; 210. Bottom plate; 220. Side plate; 230. Receiving cavity; 300. Display panel. Detailed Implementation

[0032] Exemplary embodiments will now be described more fully with reference to the accompanying drawings. However, these exemplary embodiments can be implemented in many forms and should not be construed as limited to the examples set forth herein; rather, these embodiments are provided to make this application more comprehensive and complete, and to fully convey the concept of the exemplary embodiments to those skilled in the art.

[0033] In this application, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this application, "multiple" means two or more, unless otherwise explicitly specified.

[0034] In this application, unless otherwise expressly specified and limited, the terms "assembly," "connection," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0035] Furthermore, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments. Numerous specific details are provided in the following description to give a thorough understanding of embodiments of this application. However, those skilled in the art will recognize that the technical solutions of this application can be practiced without one or more of the specific details, or other methods, components, apparatuses, steps, etc., can be employed. In other instances, well-known methods, apparatuses, implementations, or operations are not shown or described in detail to avoid obscuring various aspects of this application.

[0036] Example 1

[0037] Embodiment 1 of this application provides a leveling component 100, which is disposed between the back plate 200 and the display panel 300. The leveling component 100 can be fixed to the back plate 200 and the display panel 300 in a detachable manner, such as by pasting or vacuum adsorption.

[0038] See Figure 1 As shown, the leveling component 100 includes a housing 110, which can be made of a material with a certain deformation capability, such as rubber, silicone, etc. The housing 110 can be a sealed box, which can have a gas inlet on the side.

[0039] The housing 110 has a baffle plate 111 inside, which divides the interior of the housing 110 into a first chamber 112 and a second chamber 113. The first chamber 112 and the second chamber 113 can be connected to each other or not connected to each other, and the specific design can be made according to different embodiments.

[0040] Please continue reading Figure 1As shown, a support column 114 is provided in the first chamber 112, and the support column 114 extends in the direction from the second chamber 113 to the first chamber 112. That is, the support column 114 is located between the baffle plate 111 and the inner wall opposite to the baffle plate 111, and the support column 114 is supported in the first chamber 112.

[0041] When the back plate 200 protrudes toward the display panel 300, the support column 114 can be squeezed and deformed between the barrier plate 111 and the inner wall opposite to the barrier plate 111, that is, the support column 114 can be squeezed and deformed in the protruding direction.

[0042] Furthermore, this leveling assembly 100 also includes a heating element 120, which is disposed within the second chamber 113. The heating element 120 releases heat towards the protruding position when the back plate 200 protrudes towards the display panel 300. The support column 114 retracts under the influence of this heat. Since the housing 110 is connected to the display panel 300, when the support column 114 retracts, it pulls the inner wall opposite the barrier plate 111 towards the side closer to the back plate 200. This, in turn, pulls the outwardly protruding display panel 300 towards the side of the back plate 200, preventing the side of the display panel 300 away from the back plate 200 from protruding upwards. Figure 2 and Figure 3 As shown, this ensures that the display panel 300 remains flat, guarantees that the height of the light-emitting units within the display panel 300 is the same, and thus ensures that the light-emitting distance between the light-emitting units and the human eye is the same, avoiding the problem of local bright spots and ensuring the display effect of the display device 10.

[0043] For example, please see Figure 2 and Figure 3As shown, an external force is applied to the back plate 200 in a direction away from the display panel 300, causing the back plate 200 to bulge towards the display panel 300. At the bulging position, the back plate 200 applies a compressive force to the leveling assembly 100. The heating element 120 senses this compressive force and releases heat at the bulging position. The released heat acts on the support column 114 at the bulging position, causing the support column 114 to contract under the influence of the heat. This support column 114 can pull the inner wall opposite to the barrier plate 111 closer to the back plate 200. The display panel 300 is moved to one side of the back plate 200, thereby pulling the protruding display panel 300 towards the back plate 200 to restore the protruding display panel 300 to a flat position. This prevents the pressure applied by the back plate 200 from being applied to the display panel 300, ensuring that the display panel 300 is not deformed by the deformation of the back plate 200, thus ensuring the flatness of the display panel 300. This also ensures that the light-emitting units in the display panel 300 are at the same distance from the human eye, avoiding local bright spots and ensuring the display effect of the display device 10.

[0044] Understandably, this support column 114 can be made of heat-shrinkable material, which shrinks under the action of heat.

[0045] Furthermore, this leveling assembly 100 may not require the heating element 120 and the support column 114 made of heat-shrinkable material, as long as the support column 114 can shrink under the action of external force.

[0046] For example, the leveling assembly 100 includes only a support column 114 with elastic deformation, and the inner wall of the first chamber 112 of the leveling assembly 100, which is opposite to the barrier plate 111, is a rigid inner wall. When the back plate 200 is compressed, the support column 114 is elastically compressed in the first chamber 112. The leveling assembly 100 may also use a magnetic component and a support column 114 with telescopic function. When the back plate 200 is compressed, the support column 114 can telescopically extend and retract in the first chamber 112 to absorb or flatten the compressive force exerted by the back plate 200 on the display panel 300, preventing the display panel 300 from moving away from the back plate 200, so that the display panel 300 remains flat.

[0047] In this embodiment, the second chamber 113 includes a first inner wall and a second inner wall disposed opposite to each other. The first inner wall is located on the side of the second inner wall near the first chamber 112, that is, the first inner wall is the inner wall formed by the barrier plate 111. When the back plate 200 is pressed against the display panel 300, the second inner wall gradually moves towards the first inner wall. When the second inner wall contacts the first inner wall, the heating element 120 located in the second chamber 113 releases heat to the protruding position, so that the support column 114 at the protruding position is heated and contracts. In other words, when the second inner wall comes into contact with the first inner wall, the heating element 120 releases heat to the protruding position (around the contact position between the second inner wall and the first inner wall), causing the corresponding support column 114 around the contact position between the second inner wall and the first inner wall to contract due to heat, thereby pulling the outwardly protruding display panel 300 toward the back plate 200 side, so that the display panel 300 automatically returns to flatness, ensuring the flatness of the display panel 300, ensuring that the light emission distance of each light-emitting unit is the same, and ensuring that the distance between the display panel 300 screen and the human eye is the same, so that there will be no problems such as local bright spots, and ensuring the display effect of the display device 10.

[0048] It is understandable that the heating element 120 will generate heat on the protruding position only when the second inner wall in the second chamber 113 comes into contact with the first inner wall, and no heat will be generated at the position where there is no contact or deformation, so the support column 114 will not contract.

[0049] In addition, in some embodiments, the heating element 120 may also employ a detector, a heater, and a controller. The detector is used to detect whether the second inner wall is in contact with the first inner wall. When the second inner wall is in contact with the first inner wall, the detector transmits an electrical signal to the controller. The controller controls the heater at the protruding position to work according to the electrical signal, thereby generating heat at the protruding position. This causes the support column 114 at the protruding position to contract under the action of heat, thereby pulling the display panel 300 toward the back plate 200 side, so that the protruding display panel 300 returns to flatness, ensuring the flatness of the display panel 300, and thus ensuring the display effect.

[0050] In the embodiments of this application, please refer to Figure 1 As shown, the heating element 120 includes a first resistor 121 and a second resistor 122. Both the first resistor 121 and the second resistor 122 adopt a film structure. The first resistor 121 is attached to the first inner wall of the second chamber 113, that is, attached to the side of the barrier plate 111 away from the first chamber 112. The second resistor 122 is attached to the second inner wall of the second chamber 113.

[0051] In order to generate heat when the second inner wall comes into contact with the first inner wall, the first resistor 121 and the second resistor 122 are opposite in polarity, that is, the first resistor 121 is the positive / negative pole and the second resistor 122 is the negative / positive pole.

[0052] Please see Figure 2 and Figure 3 As shown, when the second inner wall contacts the first inner wall, the second resistor 122 and the first resistor 121 are in contact, and the positive and negative terminals of the second resistor 122 and the first resistor 121 are connected. After the connection is made, current flows between the first resistor 121 and the second resistor 122, which will generate heat at the contact point. That is to say, when the second resistor 122 contacts the first resistor 121, heat is generated at the protruding position, causing the support column 114 at the protruding position to retract, pulling the protruding display panel 300 toward the back plate 200, thereby restoring the protruding display panel 300 to flatness. This ensures the flatness of the display panel 300, ensures that the distance from each light-emitting unit to the human eye is the same, avoids the problem of local light-emitting units being too close to the human eye, and avoids the problem of local brightness, thus ensuring the display effect of the display device 10.

[0053] It is worth mentioning that the first resistor 121 and the second resistor 122 can be prepared on the first inner wall and the second inner wall of the second chamber 113 during the preparation of the housing 110.

[0054] In the embodiments of this application, please refer to Figure 1 As shown, in the direction from the second chamber 113 to the first chamber 112, the support column 114 extends vertically upward, that is, the support column 114 is perpendicular to the barrier plate 111 and the inner wall opposite to the barrier plate 111. It can effectively pull back the display panel 300, ensure that the screen automatically returns to flatness, prevent the display panel 300 from bulging outward, and ensure the display effect of the display device 10.

[0055] In some embodiments, see Figure 4 As shown, in the direction from the second chamber 113 to the first chamber 112, the support column 114 is bent and extended. The support column 114 is bent and extended in a "serpentine" shape. It has a certain elastic deformation force in the second chamber 113 and the first chamber 112. When the first chamber 112 is squeezed, the support column 114 can elastically deform in the first chamber 112, which can further reduce the squeezing force applied by the back plate 200 to the display panel 300.

[0056] Furthermore, the support column 114, with its curved extension, can absorb and counteract the external force applied to the back panel 200 in the oblique direction. It is understood that when the obliquely applied external force acts on the back panel 200, the second inner wall of its second chamber 113 contacts the first inner wall obliquely, the second resistor 122 connects with the first resistor 121 to generate heat, the support column 114 contracts due to the heat, and the support column 114, subjected to the obliquely applied external force, exhibits an elastic deformation restoring force opposite to the external force. This restoring force cancels out the oblique external force, preventing misalignment of the leveling component 100, thereby preventing misalignment and bulging of the display panel 300, and ensuring the display effect of the display device 10.

[0057] In the embodiments of this application, please refer to Figure 1 or Figure 4 As shown, the first chamber 112 is provided with a plurality of evenly spaced support columns 114. By densely arranging the support columns 114, it can be ensured that the display panel 300 does not bulge outwards in any place, thus ensuring the flatness of the display panel 300 and ensuring that the distance between the light-emitting units in the display panel 300 and the human eye is the same, avoiding the problem of local brightening, and thus ensuring the display effect of the display device 10.

[0058] It is worth mentioning that the orthographic projection of the display panel 300 on the back plate 200 can be located within the orthographic projection of the leveling component 100 on the back plate 200, or the orthographic projection of the display panel 300 on the back plate 200 can coincide with the orthographic projection of the leveling component 100 on the back plate 200. That is, the size of the leveling component 100 is at least the same as the size of the display panel 300, so as to protect all parts of the display panel 300, prevent the display panel 300 from bulging outward, and ensure the display effect.

[0059] In the embodiments of this application, please refer to Figure 2 or Figure 3 As shown, the display panel 300 has the same dimensions as the housing 110 in the leveling assembly 100. The back plate 200 has a receiving cavity 230, in which both the leveling assembly 100 and the display panel 300 are disposed. The surface of the display panel 300 away from the back plate 200 is flush with the top surface of the back plate 200. This receiving cavity 230 protects the display panel 300 and the leveling assembly 100 from damage, ensuring the display effect of the display panel 300 and the flatness of the leveling assembly 100.

[0060] It is worth mentioning that the first chamber 112 is filled with a protective gas; and / or the second chamber 113 is filled with a protective gas.

[0061] In this embodiment, a protective gas is introduced into the first chamber 112 and the second chamber 113 through a gas inlet on the housing 110. This protective gas can be an inert gas, such as helium (He) or neon (Ne). It is understood that the protective gas filling the first chamber 112 and the second chamber 113 can effectively protect the first resistor 121, the second resistor 122, and the support column 114; it can also prevent localized overheating by utilizing the low-temperature properties of the inert gas as a coolant for cooling.

[0062] This application adds a leveling assembly 100 between the display panel 300 and the back panel 200. The leveling assembly 100 includes a housing 110 and a heating element 120. The housing 110 includes a first chamber 112 and a second chamber 113. The first chamber 112 has a plurality of spaced-apart support columns 114. The second chamber 113 includes a first inner wall and a second inner wall that are opposite to each other. A first resistor 121 and a second resistor 122 are respectively attached to the first inner wall and the second inner wall. Heat is generated when the first resistor 121 and the second resistor 122 are in contact. Under the action of heat, the support column 114 contracts in the direction from the first chamber 112 to the second chamber 113. The support column 114 can pull the display panel 300 to the side closer to the back plate 200, pull the protruding display panel 300 back, so that the screen automatically returns to flatness, avoids the display panel 300 from protruding outward, ensures that the surface of the display panel 300 on the side closer to the back plate 200 is at the same level, and ensures that the distance between the light-emitting unit in the display panel 300 and the human eye is the same, thereby avoiding problems such as local brightening and visual discomfort.

[0063] Example 2

[0064] This application provides a display device 10 in embodiment two. Please refer to [link to relevant documentation]. Figure 2 or Figure 3 As shown, the display device 10 includes a display panel 300, a back plate 200, and a leveling component 100 as described in Embodiment 1. The leveling component 100 is sandwiched between the back plate 200 and the display panel 300, which can ensure the flatness of the display panel 300, thereby ensuring the display effect of the display device 10.

[0065] The leveling component 100 is attached to the display panel 300 and / or the back panel 200 to facilitate the placement and removal of the leveling component 100.

[0066] For example, double-sided adhesive tape is applied to both the upper and lower surfaces of the housing 110 of the leveling component 100. The display panel 300 is attached to the leveling component 100 via the double-sided adhesive tape on the upper side of the housing 110. The back panel 200 is attached to the leveling component 100 via the double-sided adhesive tape on the lower side of the housing 110.

[0067] In the embodiments of this application, please refer to Figure 2 or Figure 3 As shown, the back panel 200 includes a base plate 210 and a side plate 220. The side plate 220 surrounds the base plate 210 and forms a receiving cavity 230 with the base plate 210. The leveling assembly 100 and the display panel 300 are disposed within this receiving cavity 230. The leveling assembly 100 is bonded to the base plate 210, and the side of the leveling assembly 100 away from the base plate 210 is bonded to the display panel 300. This ensures the stability between the leveling assembly 100 and the back panel 200 and the display panel 300.

[0068] It is worth mentioning that, please continue to see Figure 2 or Figure 3 As shown, the orthographic projection of the display panel 300 on the back plate 200 can be located within the orthographic projection of the leveling component 100 on the back plate 200, or the orthographic projection of the display panel 300 on the back plate 200 can coincide with the orthographic projection of the leveling component 100 on the back plate 200. That is, the size of the leveling component 100 is at least the same as the size of the display panel 300, so as to protect all parts of the display panel 300, prevent the display panel 300 from bulging outward, and ensure the display effect.

[0069] In this embodiment, the display panel 300 has the same dimensions as the housing 110 in the leveling assembly 100, and the surface of the display panel 300 away from the back plate 200 is flush with the top surface of the side plate 220. The receiving cavity 230 formed by the bottom plate 210 and the side plate 220 can protect the display panel 300 and the leveling assembly 100, preventing damage to both, ensuring the display effect of the display panel 300, and ensuring the flatness of the leveling assembly 100.

[0070] In the description of this specification, references to terms such as "some embodiments," "exemplarily," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this application. The illustrative expressions of the above terms in this specification do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0071] Although embodiments of this application have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting this application. Those skilled in the art can make changes, modifications, substitutions and variations to the above embodiments within the scope of this application. Therefore, any changes or modifications made in accordance with the claims and description of this application should fall within the scope of this patent application.

Claims

1. A leveling component, disposed between a back panel and a display panel, characterized in that, The leveling component includes: The housing has a first chamber and a second chamber inside. The first chamber is located on the side of the second chamber away from the back plate. A support column is provided in the first chamber and extends from the second chamber to the first chamber. A heating element is disposed in the second chamber; The heating element can release heat to the protruding position when the back plate protrudes towards the display panel. The support column located at the protruding position can retract under the action of heat, causing the display panel to move towards the back plate side so that the display panel remains flat.

2. The leveling component according to claim 1, characterized in that, The second chamber includes a first inner wall and a second inner wall disposed opposite to each other, wherein the first inner wall is disposed on the side of the second inner wall near the first chamber; When the first inner wall comes into contact with the second inner wall, the heating element releases heat toward the protruding position.

3. The leveling component according to claim 2, characterized in that, The heating element includes a first resistor and a second resistor. The first resistor is attached to the first inner wall, and the second resistor is attached to the second inner wall. The first resistor and the second resistor are opposite in polarity. Heat is generated when the first resistor and the second resistor come into contact.

4. The leveling component according to claim 3, characterized in that, The support column extends vertically in the direction from the second chamber to the first chamber.

5. The leveling component according to claim 3, characterized in that, The support column is bent and extended in the direction from the second chamber to the first chamber.

6. The leveling component according to claim 4 or 5, characterized in that, The first chamber is provided with a plurality of support columns that are evenly spaced apart.

7. The leveling component according to claim 1, characterized in that, The first chamber is filled with a protective gas; and / or The second chamber is filled with protective gas.

8. A display device, characterized in that, It includes a display panel, a back panel, and a leveling component as described in any one of claims 1 to 7, wherein the leveling component is disposed between the back panel and the display panel.

9. The display device according to claim 8, characterized in that, The leveling component is bonded to the display panel and / or the back panel.

10. The display device according to claim 9, characterized in that, The orthographic projection area of ​​the display panel on the back panel is located within the orthographic projection area of ​​the leveling component on the back panel.

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