Display panel and temperature controller
By introducing lens components and microlens arrays into the display panel of the temperature controller, the problem of insufficient display brightness was solved, resulting in higher display brightness and a better user experience.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-08
- Publication Date
- 2026-03-10
Smart Images
Figure CN223986395U_ABST
Abstract
Description
Technical Field
[0001] This application relates to the field of intelligent control technology, and more specifically, to a display panel and a temperature controller. Background Technology
[0002] Temperature controllers are used to control indoor heating, ventilation, and air conditioning (HVAC) equipment. These systems provide cooling and heating sources to the indoor environment, thereby regulating the temperature and creating a comfortable living and working environment. Most existing temperature controllers are digital electronic, a precise temperature detection controller capable of digitally quantifying and controlling temperature. Temperature controllers typically use thermistors or thermocouples as temperature sensing elements, sending the measured temperature signal to a microcontroller. The microcontroller compares this signal with the user-preset target temperature to determine whether and when to activate the HVAC equipment, issuing corresponding control signals. Digital temperature controllers are characterized by high accuracy, high sensitivity, intuitive operation, and ease of use. The ultimate goal of temperature controller design is to achieve a comfortable environment for users through simple and clear operation, and on this basis, achieve energy savings.
[0003] The temperature controller includes a display panel. In the prior art, the display panel includes a light-emitting chip and a light guide plate disposed on the light-emitting side of the light-emitting chip. The light guide plate forms a light guide groove corresponding to the light-emitting area on the light-emitting chip. The side of the light guide plate away from the light-emitting chip is covered with a light-transmitting film, that is, air is used for light transmission. Air has low light transmittance, so only a small part of the light beam emitted by the light-emitting chip passes through, thereby reducing the display brightness of the display panel. Utility Model Content
[0004] The purpose of this application is to address the shortcomings of the prior art by providing a display panel and a temperature controller to solve the problem of low display brightness in the prior art.
[0005] To achieve the above objectives, the technical solutions adopted in the embodiments of this application are as follows:
[0006] In one aspect of this application, a display panel is provided, including a light-emitting element and a lens assembly disposed on the light-emitting side of the light-emitting element. The lens assembly includes a fixed plate and a plurality of microlens arrays disposed on the fixed plate. The light-emitting element has a plurality of light-emitting areas, and the microlens arrays are disposed in one-to-one correspondence with the light-emitting areas. The light beam emitted from the light-emitting areas is converged by the corresponding microlens arrays and then emitted to form a display image.
[0007] As one feasible approach, the side of the microlens array closest to the light-emitting element is the incident surface, which includes multiple inclined surfaces connected sequentially around the vertex.
[0008] As an feasible approach, the inclined planes include an even number of planes, and the multiple inclined planes are centrally symmetrical.
[0009] As one feasible approach, the ramps consist of four, with the angle between two opposing ramps being between 55° and 65°.
[0010] As one feasible approach, the side of the microlens array closest to the light-emitting element is the light-incident surface, which is an arc-shaped surface.
[0011] As one feasible approach, a diffuser film is also provided on the side of the fixing plate near the light-emitting element, and the diffuser film is provided in the area of the fixing plate where the microlens array is not provided.
[0012] As one feasible approach, the diffuser film is formed by spraying polyethylene onto a fixed plate.
[0013] As one possible implementation, the display panel also includes a guide plate disposed between the light-emitting element and the lens assembly, the guide plate forming a light guide groove corresponding to the light-emitting area, and the light-incident surface of the microlens array extending out of the fixing plate and into the light guide groove.
[0014] As an alternative approach, the sidewalls of the light guide groove are also coated with a reflective layer.
[0015] As one possible implementation, the display panel also includes a frame, a light-emitting element, a guide plate, and a fixing plate, which are respectively fixedly connected to the frame.
[0016] In another aspect of this application, a temperature controller is provided, including a housing, a circuit board disposed within the housing, and the aforementioned display panel embedded on one side of the housing. The display panel is signal-connected to the circuit board to display according to the control signal of the circuit board.
[0017] The beneficial effects of this application include:
[0018] This application provides a display panel used in a temperature controller, including a light-emitting element and a lens assembly disposed on the light-emitting side of the light-emitting element. The lens assembly includes a fixed plate and multiple microlens arrays disposed on the fixed plate. The light-emitting element has multiple light-emitting areas, and the microlens arrays are arranged one-to-one with the light-emitting areas. The light-emitting element is connected to a circuit board in the temperature controller. The light-emitting areas emit light beams according to the control of the circuit board. The light beams emitted from the light-emitting areas are converged by the corresponding microlens arrays and then emitted to form a display image. Due to the converging effect of the microlens arrays, more light beams are emitted through the microlens arrays, resulting in higher display brightness of the display panel, thereby improving the display brightness of the display panel. Attached Figure Description
[0019] To more clearly illustrate the technical solutions of the embodiments of this application, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this application and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained based on these drawings without creative effort.
[0020] Figure 1 This is one of the structural schematic diagrams of a display panel provided in an embodiment of this application;
[0021] Figure 2 This is a second schematic diagram of the structure of a display panel provided in an embodiment of this application;
[0022] Figure 3 This is one of the structural schematic diagrams of a lens assembly provided in an embodiment of this application;
[0023] Figure 4 This is a second schematic diagram of a lens assembly provided in an embodiment of this application;
[0024] Figure 5 for Figure 4 Enlarged view of point A in the middle;
[0025] Figure 6 This is a schematic diagram of a beam propagation path within a lens assembly, provided as an embodiment of this application.
[0026] Icons: 100-Display panel; 110-Light-emitting component; 111-Light-emitting area; 120-Lens assembly; 121-Fixing plate; 122-Microlens array; 123-Bevel; 130-Guide plate; 131-Light guide groove; 140-Frame. Detailed Implementation
[0027] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. The components of the embodiments of this application described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.
[0028] Therefore, the following detailed description of the embodiments of this application provided in the accompanying drawings is not intended to limit the scope of the claimed application, but merely to illustrate selected embodiments of the application. It should be noted that, unless otherwise specified, the various features in the embodiments of this application can be combined with each other, and the combined embodiments are still within the protection scope of this application.
[0029] In the description of this application, it should also be noted that, unless otherwise expressly specified and limited, the terms "set up," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.
[0030] One aspect of the embodiments of this application, such as Figure 1 , Figure 2 and Figure 3 As shown, a display panel 100 is provided, including a light-emitting element 110 and a lens assembly 120 disposed on the light-emitting side of the light-emitting element 110. The lens assembly 120 includes a fixing plate 121 and a plurality of microlens arrays 122 disposed on the fixing plate 121. The light-emitting element 110 has a plurality of light-emitting areas 111. The microlens arrays 122 are disposed one-to-one with the light-emitting areas 111. The light beam emitted from the light-emitting areas 111 is converged by the corresponding microlens arrays 122 and then emitted to form a display image.
[0031] The display panel 100 provided in this embodiment is used in a temperature controller. The display panel 100 is mounted on a wall and connected to the circuit board in the temperature controller to display the operating status of the HVAC equipment and the current temperature. Specifically, the display panel 100 in this embodiment includes a light-emitting element 110 and a lens assembly 120 disposed on the light-emitting side of the light-emitting element 110. The light-emitting element 110 is connected to the circuit board in the temperature controller to emit light according to the control of the circuit board. More specifically, the light-emitting element 110 has multiple light-emitting areas 111, and the lens assembly 120 includes a microlens array 122 corresponding to each light-emitting area 111. Each light-emitting area 111 emits a light beam, which is incident on the microlens array 122 and converged before exiting to form a display image. Due to the converging effect of the microlens array 122, more light beams can pass through the microlens array 122 and exit, thereby improving the display brightness of the display panel 100.
[0032] The specific structure of the microlens array 122 is not limited in this embodiment, as long as it can converge the light beam. Specifically, the microlens array 122 is an optical element composed of multiple microlenses, each with a diameter typically between a few micrometers and several hundred micrometers. It has advantages such as high light collection efficiency, multi-point focusing, and beam shaping. Based on the arrangement of the microlens array 122, the light collection efficiency and focusing of the light-emitting region 111 in this embodiment can be improved. Figure 5As shown, the microlens array 122 is composed of multiple microlenses that are sequentially attached together, and each microlens is used to converge the light beam.
[0033] As can be seen from the above, the multiple light-emitting areas 111 on the light-emitting element 110 correspond to multiple display areas. In the display panel 100, there are multiple display areas, including several display areas that display the current temperature, several display areas that display the preset temperature, and other display areas that indicate certain information. Those skilled in the art can set the information to be displayed according to the actual situation.
[0034] This application provides a display panel 100 used in a temperature controller, including a light-emitting element 110 and a lens assembly 120 disposed on the light-emitting side of the light-emitting element 110. The lens assembly 120 includes a fixing plate 121 and a plurality of microlens arrays 122 disposed on the fixing plate 121. The light-emitting element 110 has a plurality of light-emitting areas 111, and the microlens arrays 122 are disposed one-to-one with the light-emitting areas 111. The light-emitting element 110 is connected to a circuit board in the temperature controller. The light-emitting areas 111 emit light beams according to the control of the circuit board. The light beams emitted from the light-emitting areas 111 are converged by the corresponding microlens arrays 122 and then emitted to form a display image. Due to the converging effect of the microlens arrays 122, more light beams are emitted through the microlens arrays 122, resulting in higher display brightness of the display panel 100, thereby improving the display brightness of the display panel 100.
[0035] Optional, such as Figure 4 and Figure 5 As shown, the side of the microlens array 122 closest to the light-emitting element 110 is the light-incident surface, which includes multiple inclined surfaces 123 connected in sequence around the vertex.
[0036] The light-incident surface is configured as multiple inclined planes 123 connected sequentially around a vertex. This configuration of inclined planes 123 offers two advantages: firstly, the inclined planes 123 refract the light beam incident upon them, achieving a focusing effect; secondly, the inclined planes 123 increase the light-receiving area of the light-incident surface compared to a flat surface, allowing more light beams to enter the microlens array 122 through the light-incident surface, thereby improving the display brightness of the display panel 100. Specifically, the multiple inclined planes 123 connected sequentially around a vertex refract the light beam, causing the light beam incident upon the light-incident surface to converge, such as... Figure 6 As shown. Thus, when displayed on the display panel 100, each light-emitting area 111 includes multiple convergence points corresponding to a microlens.
[0037] It should be noted that, as described above, the microlens array 122 includes multiple connected microlenses. The light-incident surface here refers to the light-incident side of each microlens. For the microlens array 122, its light-incident side includes multiple light-incident surfaces that correspond one-to-one with the microlenses. Each light-incident surface includes multiple inclined surfaces 123 that are sequentially connected around the vertex.
[0038] In one possible implementation of the embodiments of this application, such as Figure 4 and Figure 5 As shown, there are an even number of inclined planes 123, and the multiple inclined planes 123 are centrally symmetrical.
[0039] An even number of inclined planes 123 are arranged in a centrally symmetrical manner. In this way, two oppositely arranged inclined planes 123 refract the light beams on opposite sides toward the center, thereby improving the uniformity of the light spot.
[0040] Optional, such as Figure 5 and Figure 6 As shown, there are four inclined planes 123, and the angle between two opposite inclined planes 123 is between 55° and 65°.
[0041] When there are four inclined planes 123, the light-incident surface is in the shape of a square pyramid, which makes the shape of the light-incident surface more regular and convenient for processing and manufacturing.
[0042] Furthermore, the included angle between the two opposing inclined planes 123 is between 55° and 65°, which maximizes the light-receiving area. Specifically, the included angle between the two opposing inclined planes 123 is not limited in this embodiment; for example, it can be 55°, 60°, or 65°, and those skilled in the art can set it according to actual conditions. Figure 6 As shown, the angle between the two opposing inclined planes 123 is set to 60°. At this time, the light-receiving area of the inclined plane 123 relative to the plane increases by 0.5 times, and the light intensity increases by 1-2 times.
[0043] In one possible implementation of this application embodiment, the side of the microlens array 122 closest to the light-emitting element 110 is the light-incident surface, and the light-incident surface is an arc-shaped surface.
[0044] The incident surface is an arc-shaped surface. The arc-shaped surface has a certain converging effect on the light beam. It is a commonly used converging surface type in optics and has a relatively mature processing technology.
[0045] Optionally, a diffuser film is also provided on the side of the fixing plate 121 near the light-emitting element 110, and the diffuser film is provided in the area of the fixing plate 121 where the microlens array 122 is not provided.
[0046] The diffuser film has the function of diverging and reflecting light beams. It is inevitable that some light beams emitted from the light-emitting area 111 will not illuminate the microlens array 122. That is, part of the light beam emitted from the light-emitting area 111 will illuminate the area of the fixing plate 121 where the microlens array 122 is not set, which is to illuminate the diffuser film. The diffuser film reflects this part of the light beam back to the light-emitting area 111, thereby avoiding stray light emission and making the light beam emitted through the microlens array 122 more uniform.
[0047] As one feasible method, the diffuser film is formed by spraying polyethylene onto the fixed plate 121, that is, the diffuser film is made of polyethylene material.
[0048] A spraying method is used to form a diffuser film, resulting in a more uniform thickness. This ensures that the scattering effect on the light beam is consistent, thereby improving the uniformity of the diffuser film.
[0049] Optional, such as Figure 1 , Figure 2 and Figure 6 As shown, the display panel 100 also includes a guide plate 130 disposed between the light-emitting element 110 and the lens assembly 120. The guide plate 130 forms a light guide groove 131 corresponding to the light-emitting area 111. The light-incident surface of the microlens array 122 extends out of the fixing plate 121 and into the light guide groove 131.
[0050] The light-emitting areas 111 correspond one-to-one with the light guide grooves 131 on the guide plate 130, allowing the light beam emitted from the light-emitting areas 111 to be transmitted along the light guide grooves 131. The light-incident surface of the microlens array 122 extends out of the fixing plate 121 and into the light guide groove 131. The light beam is transmitted to the light-incident surface within the light guide groove 131, and then enters the microlens array 122 from the light-incident surface, exiting from the light-emitting surface of the microlens array 122, thus achieving light focusing. The arrangement of the light guide grooves 131 ensures that the light beam emitted from each light-emitting area 111 is relatively independent, avoiding mutual interference between the light-emitting areas 111.
[0051] In one possible implementation of this application embodiment, the sidewall of the light guide groove 131 is also coated with a reflective layer.
[0052] The light beam emitted from the light-emitting area 111 passes through the light guide groove 131 and is scattered in multiple directions, causing the light beam that does not reach the light incident surface to leak, resulting in a waste of the light beam. In this embodiment, a reflective layer is coated on the side wall of the light guide groove 131. The reflective layer reflects the light beam that reaches the side wall of the light guide groove 131 back to the light guide groove 131 and into the light incident surface, so that the light beam is emitted along the microlens array 122 to form a display image, thereby further improving the display brightness of the display panel 100.
[0053] Specifically, the material of the reflective layer is not limited in this application embodiment. Those skilled in the art can choose according to the actual situation, as long as it can reflect the light beam. For example, it can be a silver layer.
[0054] Optional, such as Figure 1 As shown, the display panel 100 also includes a frame 140, and the light-emitting element 110, the guide plate 130 and the fixing plate 121 are respectively fixedly connected to the frame 140.
[0055] To improve the stability of the display panel 100, a frame 140 is provided to fix the light-emitting element 110, the guide plate 130, and the fixing plate 121. The frame 140 connects the light-emitting element 110, the guide plate 130, and the fixing plate 121 respectively. The frame 140 has a certain length in the arrangement direction of the light-emitting element 110, the guide plate 130, and the fixing plate 121, and has grooves on the inner sidewall of the frame 140 for mounting the light-emitting element 110, the guide plate 130, and the fixing plate 121 respectively. The light-emitting element 110, the guide plate 130, and the fixing plate 121 are respectively installed in the grooves to fix the light-emitting element 110, the guide plate 130, and the fixing plate 121, thereby improving the overall integrity of the display panel 100 and improving the stability of the display panel 100.
[0056] This application also discloses a temperature controller, including a housing, a circuit board disposed within the housing, and the aforementioned display panel 100 embedded on one side of the housing. The display panel 100 is signal-connected to the circuit board to display according to the control signals of the circuit board. This temperature controller has the same structure and beneficial effects as the display panel 100 in the foregoing embodiments. The structure and beneficial effects of the display panel 100 have been described in detail in the foregoing embodiments and will not be repeated here.
[0057] The above description is merely a preferred embodiment of this application and is not intended to limit this application. Various modifications and variations can be made to this application by those skilled in the art. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of this application should be included within the protection scope of this application.
Claims
1. A display panel, characterized by, The display panel (100) comprises a light emitting element (110) and a lens assembly (120) arranged on the light emitting side of the light emitting element (110), the lens assembly (120) comprises a fixing plate (121) and a plurality of microlens arrays (122) arranged on the fixing plate (121), the light emitting element (110) has a plurality of light emitting areas (111), the microlens arrays (122) are arranged one by one corresponding to the light emitting areas (111), and the light beams emitted by the light emitting areas (111) are emitted to form a display picture after being converged by the corresponding microlens arrays (122). The side of the microlens array (122) close to the light emitting element (110) is an incident light surface, and the incident light surface comprises a plurality of inclined surfaces (123) connected in sequence around a vertex.
2. The display panel of claim 1, wherein, The inclined surfaces (123) comprise an even number, and the plurality of inclined surfaces (123) are centrally symmetric.
3. The display panel of claim 2, wherein, The inclined surfaces (123) comprise four, and the angle of the opposite two inclined surfaces (123) is between 55°-65°.
4. The display panel of claim 2, wherein, The side of the microlens array (122) close to the light emitting element (110) is an incident light surface, and the incident light surface is an arc surface.
5. The display panel of claim 1, wherein, The side of the fixing plate (121) close to the light emitting element (110) is further provided with a light dispersing film, and the light dispersing film is arranged in the region of the fixing plate (121) where no microlens array is arranged.
6. The display panel of claim 1, wherein, The light dispersing film is formed by spraying polyethylene onto the fixing plate (121).
7. The display panel of claim 6, wherein, Further comprising a guide plate (130) arranged between the light emitting element (110) and the lens assembly (120), the guide plate (130) forms a light guide groove (131) corresponding to the light emitting area (111), and the incident light surface of the microlens array (122) extends out of the fixing plate (121) and extends into the light guide groove (131).
8. The display panel of claim 1, wherein, The sidewall of the light guide groove (131) is further coated with a reflective layer.
9. The display panel of claim 8, wherein, The display device comprises a shell, a circuit board arranged in the shell, and a display panel (100) as claimed in any one of claims 1 to 9 embedded in one side of the shell, and the display panel (100) is signal connected with the circuit board to display according to the control signal of the circuit board.
10. A temperature controller characterized by comprising: