Liquid crystal display screen with cover plate capable of demisting
By setting up the metal grid circuit pattern that can be powered on under the surface of the mobile phone cover, the problem of atomization of the mobile phone cover is solved, the degradation effect is achieved, and the user experience and product quality is improved.
Patent Information
- Application Number
- CN202420965885.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-06
- Publication Date
- 2025-01-28
- Estimated Expiration
- 2034-05-06
AI Technical Summary
The mobile phone cover often atomizes, forming water droplets, which causes users to erase frequently, otherwise the water droplets may penetrate into the inside of the mobile phone, causing damage and failing to meet the growing quality requirements of consumers.
Design a liquid crystal display that can be divorced and fog, which has a metal grid circuit pattern that can be powered on the lower surface of the cover. When the metal grid circuit pattern is turned on, it can heated the cover. Thus degradation.
By heating cover, it can effectively remove fog, avoid the formation of water droplets, improve user experience, prevent water drops from penetrating into the phone, and meet consumers' high requirements for quality.
Smart Images
Figure CN222420724U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to a liquid crystal display screen with a cover plate capable of defoggering. Background Art
[0002] In some special application scenarios, mobile phone covers will often be atomized with water droplets, which requires users to frequently wipe off the water droplets before continuing to use them. If the water droplets cannot be wiped off in time, they can easily penetrate into the interior of the mobile phone, causing damage to the internal components of the mobile phone, causing huge property losses to users, and failing to meet consumers' growing quality requirements. Utility Model Content
[0003] The technical problem to be solved by the utility model is how to remove the fog on the cover plate to prevent the fog from turning into water droplets, thereby bringing consumers a good user experience and preventing the water droplets from penetrating into the interior of the mobile phone and causing losses to consumers, thereby meeting consumers' growing quality requirements.
[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 liquid crystal display screen with a cover plate capable of defogg, which comprises a lower polarizer, a large piece of glass, a small piece of glass, an upper polarizer and a cover plate which are sequentially stacked from bottom to top, the large piece of glass being longer than the small piece of glass and extending outward to form a step, a driving IC and a driving FPC being bound to the upper surface of the large piece of glass located at the step, the cover plate comprising a visible area and a non-visible area, the non-visible area being arranged around the edge of the visible area, and a metal grid circuit pattern which can be electrically heated is arranged on the lower surface of the cover plate located in the non-visible area.
[0006] As a preferred implementation of the liquid crystal display screen with a defoggable cover provided by the utility model, the material of the metal grid circuit pattern is a high-resistance material.
[0007] As a preferred implementation of the liquid crystal display screen with a defoggable cover provided by the utility model, a defog FPC is bound to the lower surface of the cover, and the defog FPC is electrically connected to the metal grid circuit pattern.
[0008] As a preferred implementation of the liquid crystal display screen with a defoggable cover provided by the utility model, the other end of the defog FPC is bound to the driving FPC.
[0009] As a preferred embodiment of the liquid crystal display screen with a cover plate that can be defogged provided by the utility model, the lower surface of the cover plate is sequentially stacked with a first white ink layer, a second white ink layer, a third white ink layer and a fourth black reverse cover ink layer located in a non-visible area from top to bottom, and the first white ink layer, the second white ink layer, the third white ink layer and the fourth black reverse cover ink layer are stacked to form an ink step difference, and the lower surface of the cover plate is provided with a varnish layer, and the varnish layer covers the lower surface of the cover plate located in the visible area, the lower surface of the fourth black reverse cover ink layer and the ink step difference.
[0010] As a preferred embodiment of the liquid crystal display screen with defoggable cover provided by the utility model, a hollow alignment mark is provided on the first white ink layer, a space-avoiding portion corresponding to the hollow alignment mark is provided on the second white ink layer, and the third white ink layer fills the hollow alignment mark and the space-avoiding portion.
[0011] As a preferred implementation of the liquid crystal display screen with a defoggable cover provided by the utility model, the size of the air-avoiding portion is larger than the size of the hollow alignment mark.
[0012] As a preferred implementation of the liquid crystal display screen with a defoggable cover provided by the utility model, the varnish layer has one or more layers.
[0013] As a preferred implementation of the liquid crystal display screen with a defoggable cover provided by the utility model, the outer edge of the second white ink layer exceeds the outer edge of the first white ink layer.
[0014] As a preferred implementation of the liquid crystal display screen with a defoggable cover provided by the utility model, an outer edge of the third white ink layer exceeds an outer edge of the second white ink layer.
[0015] The utility model has the following beneficial effects:
[0016] Since the lower surface of the cover plate located in the non-visible area is provided with a metal grid circuit pattern that can be electrically heated, when the metal grid circuit pattern is turned on, the cover plate can be heated, thereby achieving a defog effect. Users do not need to frequently wipe off water droplets and can use it normally, avoiding atomization into water droplets, thereby bringing consumers a good user experience and avoiding water droplets from penetrating into the inside of the mobile phone and causing losses to consumers, thereby meeting consumers' growing quality requirements. 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 liquid crystal display screen with a defoggable cover.
[0019] Figure 2 for Figure 1 Bottom view of the middle cover.
[0020] Figure 3 for Figure 1 Schematic diagram of the improved structure.
[0021] Figure 4 This is a schematic diagram of the structure of Example 2.
[0022] Figure 5 for Figure 4 Schematic diagram of the structure of the first white ink layer.
[0023] Figure 6 for Figure 4 Schematic diagram of the structure in which the second white ink layer covers the first white ink layer.
[0024] Description of Figure Numbers:
[0025] Lower polarizer 1; large glass 2; small glass 3; upper polarizer 4; cover plate 5; driver IC 6; driver FPC 7; metal grid circuit pattern 51;
[0026] Demisting FPC 8; first white ink layer 52; second white ink layer 53; third white ink layer 54; fourth black reverse cover ink layer 55; varnish layer 56; hollow alignment mark 57; and airtight portion 58. 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 liquid crystal display screen with a cover plate capable of defoggering, comprising a lower polarizer, a large glass, a small glass, an upper polarizer and a cover plate which are sequentially stacked from bottom to top, wherein the large glass is longer than the small glass and extends outward to form a step, a driving IC and a driving FPC are bound to the upper surface of the large glass located at the step, the cover plate comprises a visible area and a non-visible area, the non-visible area is arranged around the edge of the visible area, and a metal grid circuit pattern which can be electrically heated is arranged on the lower surface of the cover plate located in the non-visible area.
[0031] Since the lower surface of the cover plate located in the non-visible area is provided with a metal grid circuit pattern that can be electrically heated, when the metal grid circuit pattern is turned on, the cover plate can be heated, thereby achieving a defog effect. Users do not need to frequently wipe off water droplets and can use it normally, avoiding atomization into water droplets, thereby bringing consumers a good user experience and avoiding water droplets from penetrating into the inside of the mobile phone and causing losses to consumers, thereby meeting consumers' growing quality requirements.
[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 having 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 Figure 1 and Figure 2 , a liquid crystal display screen with a cover plate capable of defogging provided by the utility model, comprising a lower polarizer 1, a large glass 2, a small glass 3, an upper polarizer 4 and a cover plate 5 which are sequentially stacked from bottom to top, the large glass 2 being longer than the small glass 3 and extending outward to form a step, the upper surface of the large glass 2 located at the step being bound with a driver IC 6 and a driver FPC 7, the cover plate 5 comprising a visible area and a non-visible area, the non-visible area being arranged around the edge of the visible area, and the lower surface of the cover plate 5 located in the non-visible area being provided with a metal grid circuit pattern 51 which can be electrically heated. Since the lower surface of the cover plate 5 located in the non-visible area is provided with a metal grid circuit pattern 51 which can be electrically heated, when the metal grid circuit pattern 51 is turned on, the cover plate 5 can be heated, thereby achieving the effect of defogging, and the user can use the mobile phone normally without frequently wiping off the water droplets, thereby avoiding atomization into water droplets, thereby bringing a good user experience to the consumer, and avoiding water droplets from penetrating into the interior of the mobile phone and causing losses to the consumer, thereby meeting the growing quality requirements of the consumer.
[0035] Furthermore, the material of the metal mesh circuit pattern 51 is a high-resistance material to improve the heating efficiency and enable rapid defogging.
[0036] See also Figure 3 Furthermore, a defogger FPC 8 is bound to the lower surface of the cover plate 5 , and the defogger FPC 8 is used to control the metal mesh circuit pattern 51 , and the defogger FPC 8 is electrically connected to the metal mesh circuit pattern 51 .
[0037] Furthermore, the other end of the defogger FPC 8 is bound to the driving FPC 7 .
[0038] Example 2
[0039] See also Figure 4As a further optimization scheme of Example 1, in this embodiment, the metal grid circuit pattern 51 on the lower surface of the cover plate 5 located in the non-visible area is sequentially stacked with a first white ink layer 52, a second white ink layer 53, a third white ink layer 54 and a fourth black reverse cover ink layer 55 from top to bottom. The first white ink layer 52, the second white ink layer 53, the third white ink layer 54 and the fourth black reverse cover ink layer 55 can be formed by silk screen printing, and an ink step difference is formed after the silk screen printing is stacked. The lower surface of the cover plate 5 is silk-screened with a varnish layer 56, and the varnish layer 56 can have one or more layers. The varnish layer 56 completely covers the lower surface of the cover plate 5 located in the visible area, covers the lower surface of the fourth black reverse cover ink layer 55, and fills the ink step difference. Since the lower surface of the cover plate 5 is provided with a varnish layer 56, and the cost of the varnish layer 56 is much lower than that of the OCA optical adhesive, the overall price of the product is reduced, and the competitiveness of the product is improved. Since the cost of the varnish layer 56 is relatively low, it can be used in large quantities, so that the varnish layer 56 can cover the lower surface of the cover plate 5 located in the visible area, the lower surface of the fourth black reverse cover ink layer 55 and the ink step difference, that is, the varnish layer 56 can cover the last layer of the fourth black reverse cover ink layer 55, so that the varnish layer 56 is in the outermost layer, and the varnish layer 56 is used as the protection of the last layer of ink. The varnish layer 56 has the characteristics of being more wear-resistant, scratch-resistant, high-temperature resistant and having good heat-sealing performance, and can well prevent the problem of ink falling off at the edge of the cover plate 5 caused by environmental influences, thereby improving the product yield, thereby meeting the company's growing quality requirements.
[0040] Example 3
[0041] See also Figures 4 to 6As a further optimization scheme of Example 1, in this embodiment, the traditional white ink cover plate 5 usually adopts a gradient design when screen-printing multiple layers of white ink, that is, the second white ink layer 53 expands a little more than the first white ink layer 52, and the third white ink layer 54 expands a little more than the second white ink layer 53, so that the height of the ink edge close to the viewing area has a gradual change, that is, the lower layer of ink does not completely cover the upper layer of ink, so that the closer the ink edge to the viewing area is, the thinner it is, and the easier it is for light to penetrate. Although the OCA optical glue or varnish layer 56 can also fill the ink step difference in the viewing area, the closer the white ink is to the viewing area, the thinner it is, and therefore the more transparent it is, thereby forming a light-transmitting aperture in the viewing area, which is not suitable for some high-end display products. In the utility model, two hollow alignment marks 57 are arranged at the corner alignment positions of the first white ink layer 52, and a voiding portion 58 corresponding to the hollow alignment mark 57 is arranged on the second white ink layer 53. The third white ink layer 54 is filled with the hollow alignment mark 57 and the voiding portion 58. According to the hollow alignment mark 57 formed on the first white ink layer 52, the second white ink layer 53 can be screen-printed by the CCD mark grabbing of the automatic screen printing machine. Since the accuracy of the CCD mark grabbing is high, the closer this error value is to zero, the second white ink layer 53 only expands 0mm to 0.1mm more than the first white ink layer 52 in the viewing area. At the same time, the second white ink layer 53 also needs to avoid the two hollow alignment marks 57 of the first white ink layer 52 to facilitate the alignment of the third white ink layer 54. The voiding portion 58 is generally avoided by 0.2mm; then, the CCD mark grabbing of the automatic screen printing machine is used to align the second white ink layer 53. Continue to grab the hollow alignment mark 57 of the first white ink layer 52 and continue to screen-print the third white ink layer 54. Similarly, the third white ink layer 54 only expands 0mm-0.1mm more than the first white ink layer 52 in the viewing area, while the second white ink layer 53 and the third white ink layer 54 remain basically flush. At the same time, the third white ink layer 54 needs to cover the two hollow alignment marks 57 of the first white ink layer 52 and the avoidance part 58 covering the second white ink layer 53 during screen printing. After completing the screen printing of all white ink layers, the fourth black reverse cover ink layer 55 is screen-printed on the periphery of the glass of the jig card cover plate 5. The fourth black reverse cover ink layer 55 expands 0.2mm to 0.4mm more than the first white ink layer 52 in the viewing area. At this time, the three white ink layers basically overlap at one position in the viewing area, so that the thinner part of the white ink is reduced to avoid the formation of a light-transmitting aperture in the viewing area.
[0042] 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.
[0043] 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 liquid crystal display screen with a cover capable of defog, characterized in that: It includes a lower polarizer, a large piece of glass, a small piece of glass, an upper polarizer and a cover plate which are stacked in sequence from bottom to top. The large piece of glass is longer than the small piece of glass and extends outward to form a step. The upper surface of the large piece of glass located at the step is bound with a driver IC and a driver FPC. The cover plate includes a visible area and a non-visible area. The non-visible area is arranged around the edge of the visible area. The lower surface of the cover plate located in the non-visible area is provided with a metal grid circuit pattern that can be electrically heated.
2. The liquid crystal display screen with a cover capable of defog according to claim 1, characterized in that: The material of the metal grid circuit pattern is a high resistance material.
3. The liquid crystal display screen with a cover capable of defog according to claim 1, characterized in that: A demisting FPC is bound to the lower surface of the cover plate, and the demisting FPC is electrically connected to the metal mesh circuit pattern.
4. The liquid crystal display screen with a defoggable cover plate according to claim 3, characterized in that: The other end of the demisting FPC is bound to the driving FPC.
5. The liquid crystal display screen with a defoggable cover plate according to claim 1, characterized in that: The lower surface of the cover plate is sequentially stacked with a first white ink layer, a second white ink layer, a third white ink layer and a fourth black reverse cover ink layer located in a non-visible area from top to bottom, and an ink step difference is formed after the first white ink layer, the second white ink layer, the third white ink layer and the fourth black reverse cover ink layer are stacked. The lower surface of the cover plate is provided with a varnish layer, and the varnish layer covers the lower surface of the cover plate located in the visible area, the lower surface of the fourth black reverse cover ink layer and the ink step difference.
6. The liquid crystal display screen with a defoggable cover plate according to claim 5, characterized in that: The first white ink layer is provided with a hollow alignment mark, the second white ink layer is provided with a void portion corresponding to the hollow alignment mark, and the third white ink layer fills the hollow alignment mark and the void portion.
7. The liquid crystal display screen with a defoggable cover plate according to claim 6, characterized in that: The size of the void-avoiding portion is larger than the size of the hollow alignment mark.
8. The liquid crystal display screen with a defoggable cover plate according to claim 5, characterized in that: The varnish layer has one or more layers.
9. The liquid crystal display screen with a defoggable cover plate according to claim 5, characterized in that: An outer edge of the second white ink layer exceeds an outer edge of the first white ink layer.
10. The liquid crystal display screen with a defoggable cover plate according to claim 9, characterized in that: An outer edge of the third white ink layer exceeds an outer edge of the second white ink layer.