Liquid crystal display screen capable of improving traceability
By printing traceability characters on the conductive layer of the LCD screen, the problem of the lack of traceability function in the production of the LCD screen is solved, and the problem of rapid positioning is achieved, reducing the defect rate and production costs are improved, and product competitiveness is improved.
Patent Information
- Application Number
- CN202420019675.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-02
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-02
AI Technical Summary
The existing LCD screen lacks traceability during production and manufacturing, which makes it difficult to quickly locate when there are problems with the components, resulting in the outflow of defective products, which increases the defect rate and production costs, and reduces product competitiveness.
A liquid crystal display screen including a conductive layer is designed with traceable characters printed on the conductive layer. Through these characters, you can quickly trace the source to the silk screen mold, position the problem point, reduce production costs and reduce defective rates.
Through the traceability characters on the conductive layer, problems can be quickly positioned, problem search time can be shortened, defective products can be avoided, defective products can be reduced, defective rates can be improved, product competitiveness can be improved, and quality requirements of manufacturers can be met.
Smart Images
Figure CN222189628U_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 improved traceability. Background Art
[0002] Existing LCD screens do not have a traceability function during production. When a problem occurs in a component, it is difficult to find out which batch the problematic product was produced from. This makes it impossible to discover and solve the problem in a timely and effective manner, which may lead to more defective products being outflowed, thereby increasing the defective rate of LCD screens, thereby increasing the production cost of LCD screens, reducing the product competitiveness of LCD screens, and failing to meet the growing quality requirements of manufacturers. Utility Model Content
[0003] The technical problem to be solved by the utility model is how to design a liquid crystal display screen which is both economical and can improve the traceability capability.
[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 improved traceability capability, which includes a touch screen, an upper polarizer, an upper substrate, a lower substrate, a liquid crystal layer and a lower polarizer, the upper surface of the touch screen is silk-screened with a conductive layer, and the conductive layer contains traceability characters; the upper polarizer is arranged on the lower surface of the touch screen; the upper substrate is arranged on the lower surface of the upper polarizer; the lower substrate is arranged on the lower surface of the upper substrate; the liquid crystal layer is arranged between the upper substrate and the lower substrate; the lower polarizer is arranged on the lower surface of the lower substrate.
[0006] As a preferred implementation of the liquid crystal display screen with improved traceability provided by the utility model, the traceability characters are digital characters.
[0007] As a preferred implementation of the liquid crystal display screen with improved traceability provided by the utility model, the digital characters are Roman numerals.
[0008] As a preferred implementation of the liquid crystal display screen with improved traceability provided by the utility model, the conductive layer has two layers, both layers of the conductive layer are provided with traceability characters, and the two layers of the traceability characters are arranged overlappingly.
[0009] As a preferred embodiment of the liquid crystal display screen with improved traceability provided by the utility model, the lower substrate is longer than the upper substrate and extends outward, a protrusion is provided on the edge of the upper surface of the lower substrate extending outward, and a buffer glue is provided on the upper surface of the lower substrate between the protrusion and the upper substrate, and the buffer glue abuts against the touch screen.
[0010] As a preferred implementation of the liquid crystal display screen with improved traceability provided by the utility model, the upper surface of the protrusion is flush with the upper surface of the upper substrate.
[0011] As a preferred implementation of the liquid crystal display screen with improved traceability provided by the utility model, the buffer glue is silicone glue.
[0012] As a preferred implementation of the liquid crystal display screen with improved traceability provided by the utility model, a rounded corner is arranged between the protrusion and the lower substrate.
[0013] As a preferred implementation of the liquid crystal display screen with improved traceability provided by the utility model, the upper surface of the lower substrate and the side surfaces of the protrusion are rough surfaces.
[0014] As a preferred implementation of the liquid crystal display screen with improved traceability provided by the utility model, the rough surface is a frosted surface or diamond knurling.
[0015] The utility model has the following beneficial effects:
[0016] Since the upper surface of the touch screen is silk-screened with a conductive layer, which contains traceability characters, once a problem is found in the LCD screen or the finished touch screen, the traceability characters on the LCD screen or the touch screen can be quickly traced back to the corresponding silk screen mold used to print the touch screen pattern, so as to quickly locate the problem point, shorten the time for problem finding as much as possible, and modify the problem point separately without scrapping the entire mold, reducing production costs and avoiding the outflow of defective products, thereby reducing the defective rate of LCD screens and improving the product competitiveness of LCD screens, thereby meeting the growing quality requirements of manufacturing companies. 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 A schematic diagram of the structure of a liquid crystal display screen for improving traceability provided by the utility model.
[0019] Figure 2 for Figure 1 Schematic diagram of the traceability character structure on the touch screen.
[0020] Figure 3 This is a schematic diagram of the structure of Example 2.
[0021] Description of Figure Numbers:
[0022] Touch screen 1; upper polarizer 2; upper substrate 3; lower substrate 4; lower polarizer 5; conductive layer 6; traceability character 61;
[0023] Protrusion 41; Buffer rubber 42. DETAILED DESCRIPTION
[0024] 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.
[0025] 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.
[0026] 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.
[0027] The utility model provides a liquid crystal display screen with improved traceability, which includes a touch screen, an upper polarizer, an upper substrate, a lower substrate, a liquid crystal layer and a lower polarizer, wherein the upper surface of the touch screen is silk-screened with a conductive layer, and the conductive layer contains traceability characters; the upper polarizer is arranged on the lower surface of the touch screen; the upper substrate is arranged on the lower surface of the upper polarizer; the lower substrate is arranged on the lower surface of the upper substrate; the liquid crystal layer is arranged between the upper substrate and the lower substrate; the lower polarizer is arranged on the lower surface of the lower substrate.
[0028] Since the upper surface of the touch screen is silk-screened with a conductive layer, which contains traceability characters, once a problem is found in the LCD screen or the finished touch screen, the traceability characters on the LCD screen or the touch screen can be quickly traced back to the corresponding silk screen mold used to print the touch screen pattern, so as to quickly locate the problem point, shorten the time for problem finding as much as possible, and modify the problem point separately without scrapping the entire mold, reducing production costs and avoiding the outflow of defective products, thereby reducing the defective rate of LCD screens and improving the product competitiveness of LCD screens, thereby meeting the growing quality requirements of manufacturing companies.
[0029] 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.
[0030] Example 1
[0031] See also Figure 1 and Figure 2 , a liquid crystal display screen with improved traceability provided by the utility model, comprising a touch screen 1, an upper polarizer 2, an upper substrate 3, a lower substrate 4, a liquid crystal layer and a lower polarizer 5, the upper surface of the touch screen 1 is silk-screened with a conductive layer 6, and the conductive layer 6 includes traceability characters 61; the upper polarizer 2 is arranged on the lower surface of the touch screen 1; the upper substrate 3 is arranged on the lower surface of the upper polarizer 2; the lower substrate 4 is arranged on the lower surface of the upper substrate 3; the liquid crystal layer is arranged between the upper substrate 3 and the lower substrate 4; the lower polarizer 5 is arranged on the lower surface of the lower substrate 4.
[0032] Preferably, the traceability character 61 is a numeric character. More preferably, the numeric character is a Roman numeral character. Because Roman numerals are relatively simple in structure and have fewer strokes, they can save silver paste materials when silk-screened. Once a problem is found in the finished product of the liquid crystal display screen or the touch screen 1, the traceability character 61 on the liquid crystal display screen or the touch screen 1 can be quickly traced to the corresponding silk screen mold for silk-screening the touch screen 1 pattern, and the problem point can be quickly located, the time for finding the problem can be shortened as much as possible, and the problem point can be modified separately without scrapping the entire mold, thereby reducing production costs.
[0033] Furthermore, the conductive layer 6 has two layers, and both layers of the conductive layer 6 are provided with traceability characters 61, and the two layers of traceability characters 61 are arranged in an overlapping manner. The same positions of the upper and lower layers are silk-screened with Roman numerals of silver paste material. Not only can the subsequent problem tracing needs be met, but also the problem of whether the upper and lower layers of film will be misaligned can be controlled. When the two layers of material are bonded together, if the upper and lower layers of material cannot completely overlap, it is mainly reflected in the deviation of the overlap of the visual areas of the silk-screen layers of the upper and lower layers of material. Roman numerals are used here because the appearance of Roman numerals is relatively square, which is convenient for silk-screen production activities, and the nature of their straight edges and straight edges also makes it easy to observe the misalignment of the fit.
[0034] When the touch screen is a single-layer film structure (F structure), only one conductive layer needs to be printed on the film material. At this time, a silver paste Roman numeral mark of appropriate size "II, I-II, ...., II-I, II-II, ...." can be added to the blank space on the single film on the large plate. This can meet the needs of subsequent touch screen tracing.
[0035] When the touch screen is a double-layer film structure (FF structure), it is necessary to screen-print a conductive layer on each layer of film material, and then use OCA solid double-sided tape to stick the two layers of film material together. At this time, you can add a silver paste Roman numeral mark of appropriate size "II, I-II, ...., II-I, II-II, ...." on the blank space of the single film on the large version.
[0036] Example 2
[0037] See also Figure 3As a further optimization scheme of Example 1, in this embodiment, the lower substrate 4 is longer than the upper substrate 3 and extends outward, and a protrusion 41 is provided on the edge of the upper surface of the lower substrate 4 extending outward, and a buffer glue 42 is provided on the upper surface of the lower substrate 4 between the protrusion 41 and the upper substrate 3, and the buffer glue 42 abuts against the touch screen 1. Since the edge of the lower substrate 4 is provided with a protrusion 41, the protrusion 41 can limit the flow of the buffer glue 42, so that the shape of the buffer glue 42 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 lower substrate 4 is avoided, and the abnormal display of the liquid crystal display screen is prevented.
[0038] Furthermore, the upper surface of the protrusion 41 is flush with the upper surface of the upper substrate 3 to further limit the flow of the buffer glue 42, so that the shape of the buffer glue 42 is easy to control without overflowing glue or incomplete glue dispensing.
[0039] Furthermore, the buffer glue 42 is silicone glue.
[0040] Furthermore, a chamfer is provided between the protrusion 41 and the lower substrate 4 so that the buffer glue 42 can more easily fill the space between the protrusion 41 on the upper surface of the lower substrate 4 and the upper substrate 3. The protrusion 41 with a chamfer can make the buffer glue 42 flow more smoothly into the space between the protrusion 41 on the upper surface of the lower substrate 4 and the upper substrate 3, making it less likely for bubbles to appear.
[0041] Furthermore, the upper surface of the lower substrate 4 and the side surfaces of the protrusions 41 are rough surfaces to improve the fixing effect of the buffer glue 42 .
[0042] Furthermore, the rough surface is a frosted surface or a diamond knurled surface to further improve the fixing effect of the buffer glue 42 .
[0043] 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.
[0044] 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 improved traceability, characterized in that: It includes: A touch screen, the upper surface of which is silk-screened with a conductive layer, wherein the conductive layer includes traceability characters; An upper polarizer, which is arranged on the lower surface of the touch screen; An upper substrate, which is arranged on the lower surface of the upper polarizer; A lower substrate, which is disposed on the lower surface of the upper substrate; a liquid crystal layer disposed between the upper substrate and the lower substrate; A lower polarizer, which is arranged on the lower surface of the lower substrate; The traceability characters are digital characters; the digital characters are Roman numerals; the conductive layer has two layers, both of which are provided with traceability characters, and the two layers of traceability characters are overlapped; the lower substrate is longer than the upper substrate and extends outward, and a protrusion is provided on the edge of the upper surface of the lower substrate extending outward, and a buffer glue is provided on the upper surface of the lower substrate between the protrusion and the upper substrate, and the buffer glue abuts against the touch screen; the upper surface of the protrusion is flush with the upper surface of the upper substrate; the buffer glue is silicone glue; a chamfer is provided between the protrusion and the lower substrate; the upper surface of the lower substrate and the side of the protrusion are rough surfaces; the rough surface is a frosted surface or a diamond knurling.