Partitioned heating liquid crystal display screen
By setting up multiple independently controlled heating trace circuits in the LCD screen, regional heating is achieved, which solves the problem of temperature unevenness caused by traditional heating modules, and improves the display effect and product competitiveness.
Patent Information
- Application Number
- CN202420688710.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-03
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-04-03
AI Technical Summary
The response time of the traditional vehicle LCD screen is extended in a low temperature environment, resulting in the display screen being stuck, and the traditional heating module heats the entire screen evenly, resulting in the temperature in the area near the IC and backlight LED lamps being too high, affecting the display effect.
The partition heating liquid crystal display is adopted, and multiple parallel heating trace loops are set up through the ITO pattern layer. Each heating trace loop is independently distributed in one area and can be controlled separately. The FPC is electrically connected to each heating trace loop to realize regional heating.
The temperature uniformity in each area is achieved, and the temperature in the area near the IC and backlight LED lamps is avoided, which improves the display effect and product competitiveness of the LCD screen.
Smart Images
Figure CN222784686U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to a zoned heating liquid crystal display screen. Background Art
[0002] In traditional car-mounted LCD screens, when in low temperature conditions, the response time of the LCD screen will be affected by the low temperature, causing the display screen to be stuck and not smooth. When traditional heating modules heat the LCD screen, they usually heat the entire LCD screen evenly. The binding end of the LCD screen has IC and backlight LED lamps, which emit more heat when working. Therefore, the temperature of the LCD screen near the IC and backlight LED lamps is relatively high. In this case, there is no need to heat this area or the current can be reduced without full load operation. Otherwise, the heat in the area near the IC and backlight LED lamps will be high, thus affecting the display effect of the LCD screen. Utility Model Content
[0003] The technical problem to be solved by the utility model is how to avoid the problem of excessively high regional temperature caused by heating a part of the region when the temperature of the region is relatively high.
[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions:
[0005] In order to solve the above technical problems, the utility model provides a zoned heating liquid crystal display screen, which includes a lower polarizer, an array substrate, a color filter substrate, an upper polarizer, an ITO pattern layer and an FPC, wherein the array substrate is arranged above the lower polarizer; the color filter substrate is arranged above the array substrate; the upper polarizer is arranged above the color filter substrate; the ITO pattern layer is arranged on the lower surface of the array substrate, and the ITO pattern layer includes a plurality of heating wiring loops arranged in parallel, each of the heating wiring loops is separately distributed in one of the independent areas without overlapping each other, and each of the heating wiring loops can be separately controlled; the FPC is bound to the lower surface of the array substrate and is electrically connected to each of the heating wiring loops respectively.
[0006] As a preferred embodiment of the zoned heated liquid crystal display provided by the utility model, there are six heating wiring loops, which are respectively distributed in the upper left area, lower left area, upper middle area, lower middle area, upper right area and lower right area of the lower surface of the array substrate.
[0007] As a preferred embodiment of the zoned heating liquid crystal display provided by the utility model, a cover plate is arranged above the upper polarizer, the array substrate is longer than the color film substrate and extends outward, a protrusion is arranged on the edge of the upper surface of the array substrate extending outward, a buffer glue is arranged on the upper surface of the array substrate between the protrusion and the color film substrate, and the buffer glue abuts against the cover plate.
[0008] As a preferred implementation of the zoned heating liquid crystal display screen provided by the utility model, the upper surface of the protrusion is flush with the upper surface of the color film substrate.
[0009] As a preferred implementation of the zoned heating liquid crystal display screen provided by the utility model, the buffer glue is silicone glue.
[0010] As a preferred implementation of the zoned heating liquid crystal display screen provided by the utility model, a rounded corner is arranged between the protrusion and the array substrate.
[0011] As a preferred implementation of the zoned heating liquid crystal display screen provided by the utility model, the upper surface of the array substrate and the side surfaces of the protrusions are rough surfaces.
[0012] As a preferred embodiment of the zoned heated liquid crystal display provided by the utility model, a two-dimensional code laser area is provided on the upper surface of the FPC, and a first ink layer and a second ink layer provided on the first ink layer are provided on the upper surface of the FPC located on the two-dimensional code laser area, and a two-dimensional code is formed on the second ink layer by laser, and the colors of the first ink layer and the second ink layer are different.
[0013] As a preferred implementation of the zoned heating liquid crystal display screen provided by the utility model, the first ink layer is a black ink layer, and the second ink layer is a white ink layer.
[0014] As a preferred embodiment of the zoned heating liquid crystal display provided by the utility model, the thickness of the first ink layer is 30 μm ～ 40 μm, the thickness of the second ink layer is 10 μm ～ 20μm.
[0015] The utility model has the following beneficial effects:
[0016] Since each heating wiring loop is independently distributed in one of the independent areas without overlapping, each heating wiring loop only heats one of its own areas. For example, the area near the IC and the backlight LED lamp may not be heated or the current in this area may be reduced to make the temperature of each area uniform, thereby preventing the temperature of specific areas such as the IC and the backlight LED lamp from being too high and affecting the normal display of the display module, thereby ensuring the display effect of the LCD screen and improving the competitiveness of the product. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.
[0018] Figure 1 The utility model provides a structural schematic diagram of a zoned heating liquid crystal display screen.
[0019] Figure 2 for Figure 1 Top view after hiding the upper and lower polarizers.
[0020] Figure 3 for Figure 1 Bottom view after hiding the upper and lower polarizers.
[0021] Figure 4 This is a schematic diagram of the structure of Example 2.
[0022] Figure 5 This is a schematic diagram of the structure of Example 3.
[0023] Description of Figure Numbers:
[0024] Lower polarizer 1; array substrate 2; color filter substrate 3; upper polarizer 4; ITO pattern layer 5; FPC 6; heating wiring loop 51;
[0025] Cover plate 7; protrusion 21; buffer rubber 8;
[0026] A first ink layer 61 ; a second ink layer 62 . DETAILED DESCRIPTION
[0027] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.
[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0029] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.
[0030] The utility model provides a zoned heating liquid crystal display screen, which comprises a lower polarizer, an array substrate, a color film substrate, an upper polarizer, an ITO pattern layer and an FPC, wherein the array substrate is arranged above the lower polarizer; the color film substrate is arranged above the array substrate; the upper polarizer is arranged above the color film substrate; the ITO pattern layer is arranged on the lower surface of the array substrate, the ITO pattern layer comprises a plurality of heating wiring loops arranged in parallel, each of the heating wiring loops is separately distributed in one of the independent areas without overlapping each other, and each of the heating wiring loops can be separately controlled; the FPC is bound to the lower surface of the array substrate and is electrically connected to each of the heating wiring loops.
[0031] Since each heating wiring loop is independently distributed in one of the independent areas without overlapping, each heating wiring loop only heats one of its own areas. For example, the area near the IC and the backlight LED lamp may not be heated or the current in this area may be reduced to make the temperature of each area uniform, thereby preventing the temperature of specific areas such as the IC and the backlight LED lamp from being too high and affecting the normal display of the display module, thereby ensuring the display effect of the LCD screen and improving the competitiveness of the product.
[0032] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention.
[0033] Example 1
[0034] See also Figures 1 to 3 , is a partitioned heating liquid crystal display screen provided by the utility model, which includes a lower polarizer 1, an array substrate 2, a color filter substrate 3, an upper polarizer 4, an ITO pattern layer 5 and an FPC6, the array substrate 2 is arranged above the lower polarizer 1; the color filter substrate 3 is arranged above the array substrate 2; the upper polarizer 4 is arranged above the color filter substrate 3; the ITO pattern layer 5 is arranged on the lower surface of the array substrate 2, the ITO pattern layer 5 includes a plurality of heating wiring loops 51 arranged in parallel, each heating wiring loop 51 is separately distributed in one of the independent areas without overlapping each other, and each of the heating wiring loops 51 can be separately controlled. In this embodiment, there are six heating wiring loops 51, and the six heating wiring loops 51 are respectively distributed in the upper left area, the lower left area, the upper middle area, the lower middle area, the upper right area and the lower right area of the lower surface of the array substrate 2; the FPC6 is bound to the lower surface of the array substrate 2 and is electrically connected to each heating wiring loop 51 respectively. Since each heating wiring loop 51 is separately distributed in one of the independent areas without overlapping, each heating wiring loop 51 only heats one of its own areas. For example, the area near the IC and the backlight LED lamp may not be heated or the current in this area may be reduced to make the temperature of each area uniform, thereby preventing the temperature of specific areas such as the IC and the backlight LED lamp from being too high and affecting the normal display of the display module, thereby ensuring the display effect of the LCD screen and improving the competitiveness of the product.
[0035] Example 2
[0036] See also Figure 4 As a further optimization scheme of Example 1, in this embodiment, a cover plate 7 is arranged above the upper polarizer 4, the array substrate 2 is longer than the color filter substrate 3 and extends outward, a protrusion 21 is arranged on the edge of the upper surface of the array substrate 2 extending outward, a buffer glue 8 is arranged on the upper surface of the array substrate 2 between the protrusion 21 and the color filter substrate 3, and the buffer glue 8 abuts against the cover plate 7. Since the edge of the array substrate 2 is provided with the protrusion 21, the protrusion 21 can limit the flow of the buffer glue 8, so that the shape of the buffer glue 8 is easy to control, and there will be no overflow of glue or incomplete glue dispensing. Thereby preventing the liquid crystal display screen from being unable to be assembled with the casing. In addition, the problem of poor buffering effect caused by incomplete glue dispensing and easy rupture of the array substrate 2 is avoided, and the abnormal display of the liquid crystal display screen is prevented.
[0037] Furthermore, the upper surface of the protrusion 21 is flush with the upper surface of the color filter substrate 3 to further limit the flow of the buffer glue 8, so that the shape of the buffer glue 8 is easy to control without overflowing glue or incomplete glue dispensing.
[0038] Furthermore, the buffer glue 8 is silicone glue.
[0039] Furthermore, a chamfer is provided between the protrusion 21 and the array substrate 2 so that the buffer glue 8 can more easily fill the space between the protrusion 21 on the upper surface of the array substrate 2 and the color film substrate 3. The protrusion 21 with a chamfer can make the buffer glue 8 flow more smoothly into the space between the protrusion 21 on the upper surface of the array substrate 2 and the color film substrate 3 so that bubbles are less likely to appear.
[0040] Furthermore, the upper surface of the array substrate 2 and the side surfaces of the protrusions 21 are rough surfaces to improve the fixing effect of the buffer glue 8 .
[0041] Example 3
[0042] See also Figure 5 As a further optimization scheme of Example 1, in this embodiment, a two-dimensional code laser area is further provided on the upper surface of FPC6. A first ink layer 61 and a second ink layer 62 provided on the first ink layer 61 are provided on the upper surface of FPC6 located on the two-dimensional code laser area. The second ink layer 62 is formed with a two-dimensional code by laser. The first ink layer 61 and the second ink layer 62 have different colors. Since two layers of ink, the first ink layer 61 and the second ink layer 62, are provided, the second ink layer 62 on the surface is lasered off by laser to expose the first ink layer 61 on the bottom layer. The areas where the laser is applied are displayed in different colors. The two-dimensional code generated in this way has a good contrast effect and is easy to scan. At the same time, the two-dimensional code will not fall off or be damaged, which prevents the two-dimensional code from being invalid, and greatly reduces the labor cost.
[0043] Furthermore, the first ink layer 61 is a black ink layer, and the second ink layer 62 is a white ink layer. The contrast between the black ink layer and the white ink layer is better, and the code is easier to scan.
[0044] Furthermore, the thickness of the first ink layer 61 is 30 μm. ～ 40 μm. The thickness of the second ink layer 62 is 10 μm ～ 20μm. This thickness is the thickness that the commonly used ultraviolet laser can just penetrate, and there is no dust around after the laser irradiation, which has the advantages of high rhythm and efficiency. The reason why the thickness of the lower first ink layer 61 is thicker than the thickness of the upper second ink layer 62 is to avoid laser power energy fluctuations and prevent the first ink layer 61 from being penetrated by the laser and causing damage to the internal layer of FPC6.
[0045] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0046] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.
Claims
1. A zoned heated liquid crystal display screen, characterized in that: It includes: Lower polarizer; An array substrate, which is arranged above the lower polarizer; A color film substrate, which is arranged above the array substrate; An upper polarizer, which is arranged above the color filter substrate; An ITO pattern layer, which is arranged on the lower surface of the array substrate, the ITO pattern layer includes a plurality of heating wiring loops arranged in parallel, each of the heating wiring loops is separately distributed in one of the independent areas without overlapping each other, and each of the heating wiring loops can be separately controlled; The FPC is bound to the lower surface of the array substrate and is electrically connected to each of the heating wiring loops.
2. The zoned heated liquid crystal display screen according to claim 1, characterized in that: There are six heating wiring loops, which are respectively distributed in the upper left area, the lower left area, the upper middle area, the lower middle area, the upper right area and the lower right area of the lower surface of the array substrate.
3. The zoned heated liquid crystal display screen according to claim 1, characterized in that: A cover plate is arranged above the upper polarizer, the array substrate is longer than the color film substrate and extends outward, a protrusion is arranged on the edge of the upper surface of the array substrate extending outward, a buffer glue is arranged on the upper surface of the array substrate between the protrusion and the color film substrate, and the buffer glue abuts against the cover plate.
4. The zoned heated liquid crystal display screen according to claim 3, characterized in that: The upper surface of the protrusion is flush with the upper surface of the color film substrate.
5. The zoned heated liquid crystal display screen according to claim 3, characterized in that: The buffer glue is silicone glue.
6. The zoned heated liquid crystal display screen according to claim 3, characterized in that: A rounded corner is arranged between the protrusion and the array substrate.
7. The zoned heated liquid crystal display screen according to claim 3, characterized in that: The upper surface of the array substrate and the side surfaces of the protrusion are rough surfaces.
8. The zoned heated liquid crystal display screen according to claim 1, characterized in that: A QR code laser area is provided on the upper surface of the FPC, a first ink layer and a second ink layer provided on the first ink layer are provided on the upper surface of the FPC located on the QR code laser area, a QR code is formed on the second ink layer by laser, and the colors of the first ink layer and the second ink layer are different.
9. The zoned heated liquid crystal display screen according to claim 8, characterized in that: The first ink layer is a black ink layer, and the second ink layer is a white ink layer.