Narrow-frame liquid crystal display screen with key function
By setting hollow parts on the cover of the narrow-bezel LCD screen and using button pattern ink and induction button silver paste layer, the key function is realized by using OUT CTP method, which solves the problem that narrow-bezel LCD screens in the prior art is difficult to effectively realize button function, and achieves the effect of frame reduction, cost reduction and competitiveness improvement.
Patent Information
- Application Number
- CN202422058720.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-08-23
- Publication Date
- 2025-06-10
- Estimated Expiration
- 2034-08-23
AI Technical Summary
The prior art is difficult to effectively implement the button function in a narrow-bezel LCD display, resulting in high product costs and insufficient competitiveness.
The narrow-bezel LCD display with key function is designed using OUT CTP method. The key function is realized by setting hollow parts on the cover plate and using key pattern ink and induction key silver paste layer.
Effectively utilize the location of non-display areas, reduce border width, reduce product costs, and improve product competitiveness.
Smart Images
Figure CN222965531U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid crystal display, and more specifically, to a narrow-border liquid crystal display screen with a button function. Background Art
[0002] The application of Incell liquid crystal display modules is becoming more and more extensive, and the in-vehicle center console has also been converted from OUT CTP to the Incell mode; for the convenience and quick use of users, it is necessary to design some shortcut keys, such as buttons like home and main menu; if all of them use Incell displays to implement this function, it will be relatively wasteful and a larger display screen is required. Content of the Utility Model
[0003] The technical problem to be solved by the utility model is how to implement the button function in the way of OUT CTP, adopt a liquid crystal display screen with a smaller size border, reduce the product cost and improve the product competitiveness.
[0004] The technical problem to be solved by the utility model is realized through the following technical solutions:
[0005] To solve the above technical problem, the utility model provides a narrow-border liquid crystal display screen with a button function, which includes a lower polarizer, a lower substrate, an upper substrate, an upper polarizer and a cover plate that are sequentially stacked from bottom to top. The lower substrate is longer than the upper substrate and extends outwards to form a step. A driving IC is bonded to the upper surface of the lower substrate at the step. A first layer of light-shielding ink is provided on the lower surface of the cover plate. A second layer of light-shielding ink is provided on the lower surface of the first layer of light-shielding ink. At least one hollow part is provided at the first layer of light-shielding ink and the second layer of light-shielding ink. A button pattern ink is provided at each hollow part. The button pattern ink is white ink or mirror ink. An inductive button silver paste layer is provided on the lower surface of the second layer of light-shielding ink and the button pattern ink. A protective layer covers the lower surface of the inductive button silver paste layer. The button pattern ink is located directly above the driving IC. The inductive button silver paste layer is connected with an FPC.
[0006] As a preferred embodiment of the narrow-border liquid crystal display screen with a button function provided by the utility model, the material of the cover plate is tempered glass, and the thickness of the cover plate is 0.7mm - 3.0mm.
[0007] As a preferred embodiment of the narrow-border liquid crystal display screen with a button function provided by the utility model, the first layer of light-shielding ink is black ink or white ink.
[0008] As a preferred embodiment of the narrow - bezel liquid crystal display with button function provided by the present utility model, the thicknesses of the first layer of light - shielding ink, the second layer of light - shielding ink, and the part of the button pattern ink layer that exceeds the second layer of light - shielding ink are all 0.005 mm - 0.015 mm.
[0009] As a preferred embodiment of the narrow - bezel liquid crystal display with button function provided by the present utility model, the second layer of light - shielding ink is black ink.
[0010] As a preferred embodiment of the narrow - bezel liquid crystal display with button function provided by the present utility model, at the hollow part, the edge of the second layer of light - shielding ink extends 0.3 mm - 1.2 mm outward relative to the edge of the first layer of light - shielding ink, and the edge of the button pattern ink extends 0.2 mm - 1.0 mm beyond the edge of the hollow part of the second layer of light - shielding ink.
[0011] As a preferred embodiment of the narrow - bezel liquid crystal display with button function provided by the present utility model, the material of the protective layer is insulating oil.
[0012] As a preferred embodiment of the narrow - bezel liquid crystal display with button function provided by the present utility model, a traceability label paper and a shielding paper are arranged on the surface of the FPC. The shielding paper covers the surface of the FPC and the traceability label paper. The shielding paper includes a shielding layer, an adhesive layer, and a non - sticky layer that are sequentially stacked from top to bottom. The size and position of the non - sticky layer correspond to the size and position of the traceability label paper. The non - sticky layer covers the traceability label paper, and the adhesive layer covers the surface of the FPC.
[0013] As a preferred embodiment of the narrow - bezel liquid crystal display with button function provided by the present utility model, the edge of the non - sticky layer extends 1.5 mm to 3 mm beyond the edge of the traceability label paper.
[0014] As a preferred embodiment of the narrow - bezel liquid crystal display with button function provided by the present utility model, the appearance colors of the non - sticky layer and the shielding layer are different.
[0015] The present utility model has the following beneficial effects:
[0016] Since the button pattern ink and the inductive button silver paste layer are located directly above the driving IC, the position of the non - display area can be very well utilized for layout, without increasing the occupied area of the non - display area, thereby reducing the bezel. The button function is realized by the OUT CTP method, which can minimize the outer shape size of the cover plate, so that the TFT module can achieve a narrow bezel, with a relatively compact and beautiful appearance, and the product has higher competitiveness. Description of the Drawings
[0017] To more clearly illustrate the solutions in this application, the following will give a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings in the following description are some embodiments of this application. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.
[0018] Figure 1 It is a schematic structural diagram of a narrow-bezel liquid crystal display with a button function provided by the present utility model.
[0019] Figure 2 For Figure 1 the top view.
[0020] Figure 3 For Figure 1 the schematic structural diagram at the middle cover plate.
[0021] Figure 4 It is the schematic structural diagram of Embodiment 2.
[0022] Figure 5 For Figure 4 the bottom view of the shielding paper.
[0023] Figure 6 For Figure 4 the schematic laminated structure diagram of the shielding paper.
[0024] Explanation of the reference numerals in the drawings:
[0025] Lower polarizer 1; lower substrate 2; upper substrate 3; upper polarizer 4; cover plate 5; driving IC 6; first layer of light-shielding ink 51; second layer of light-shielding ink 52; button pattern ink 53; inductive button silver paste layer 54; protective layer 55; FPC 7;
[0026] Trace label paper 8; shielding paper 9; shielding layer 91; glue layer 92; non-adhesive layer 93. Detailed implementation manners
[0027] In order to enable those skilled in the art to better understand the solutions of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model with reference to the drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0028] In the description of the present utility model, it should be understood that the orientation or positional relationship indicated by terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present utility model.
[0029] In addition, the terms "first", "second", "third" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, the features defined with "first", "second", "third" may explicitly or implicitly include at least one of such features. In the description of the present utility model, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise specifically and clearly defined.
[0030] The present utility model provides a narrow-bezel liquid crystal display screen with a button function, which includes a lower polarizer, a lower substrate, an upper substrate, an upper polarizer, and a cover plate sequentially stacked from bottom to top. The lower substrate is longer than the upper substrate and extends outward to form a step. A driving IC is bonded to the upper surface of the lower substrate at the step. A first layer of light-shielding ink is provided on the lower surface of the cover plate. A second layer of light-shielding ink is provided on the lower surface of the first layer of light-shielding ink. At least one hollow portion is provided at the first layer of light-shielding ink and the second layer of light-shielding ink. A button pattern ink is provided at each hollow portion. The button pattern ink is white ink or mirror ink. An inductive button silver paste layer is provided on the lower surface of the second layer of light-shielding ink and the button pattern ink. A protective layer covers the lower surface of the inductive button silver paste layer. The button pattern ink is located directly above the driving IC. The inductive button silver paste layer is connected to an FPC.
[0031] Since the button pattern ink and the inductive button silver paste layer are located directly above the driving IC, the position of the non-display area can be very well utilized for layout, without increasing the occupied area of the non-display area, thereby reducing the bezel. The button function is realized by the OUT CTP method, which can minimize the outer dimension of the cover plate, so that the TFT module can achieve a narrow bezel, with a relatively compact and beautiful appearance, and the product has higher competitiveness.
[0032] To enable those skilled in the art to better understand the solution of this application, the technical solutions in the embodiments of this application will be clearly and completely described below in conjunction with the accompanying drawings. The present utility model will be described in detail below in conjunction with the drawings and embodiments. The examples of the embodiments are shown in the drawings, where the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions from beginning to end. The embodiments described below by referring to the drawings are exemplary and are intended to explain the present utility model, but should not be construed as a limitation to the present utility model.
[0033] Please refer to Figures 1 to 3 , a narrow-bezel liquid crystal display screen with a button function provided by the present utility model, which includes a lower polarizer 1, a lower substrate 2, an upper substrate 3, an upper polarizer 4, and a cover plate 5 sequentially stacked from bottom to top. The lower substrate 2 is longer than the upper substrate 3 and extends outward to form a step. A driving IC 6 is bonded to the upper surface of the lower substrate 2 at the step. A first layer of light-shielding ink 51 is provided on the lower surface of the cover plate 5, and a second layer of light-shielding ink 52 is provided on the lower surface of the first layer of light-shielding ink 51. At least one hollow portion is provided at the first layer of light-shielding ink 51 and the second layer of light-shielding ink 52, and the visible area is also hollowed out. A button pattern ink 53 is provided at each hollow portion. The button pattern ink 53 is white ink or mirror ink. This kind of ink can distinguish the pattern from the cover plate 5 without a backlight source. An inductive button silver paste layer 54 is provided on the lower surfaces of the second layer of light-shielding ink 52 and the button pattern ink 53. In this embodiment, there are multiple hollow portions, and the number of button pattern inks 53 is equal to the number of hollow portions, that is, a button pattern ink 53 is provided at each hollow portion, and then an inductive button silver paste circuit pattern is provided under the multiple button pattern inks 53. A protective layer 55 covers the lower surface of the inductive button silver paste layer 54. The button pattern ink 53 is located directly above the driving IC 6, and the inductive button silver paste layer 54 is connected to an FPC 7. Since the button pattern ink 53 and the inductive button silver paste layer 54 are located directly above the driving IC 6, the position of the non-display area can be very well utilized for layout, without increasing the occupied area of the non-display area, thereby reducing the bezel. The button function is realized by the OUT CTP method, which can minimize the external dimension of the cover plate 5, so that the TFT module can achieve a narrow bezel, and the appearance is relatively compact and beautiful, and the product has higher competitiveness.
[0034] The inductive button silver paste layer 54 can adopt the screen printing process. Design the button function pattern according to the outer shape of the button appearance. The function pattern can adopt the self-capacitance or mutual-capacitance mode; the pattern and the wiring are screen-printed at the same time. The FPC 7 connects the inductive button silver paste layer 54 on the cover plate 5 to the control main board.
[0035] Further, the material of the cover plate 5 is tempered glass, and the thickness of the cover plate 5 is 0.7 mm - 3.0 mm.
[0036] Further, the first layer of light-shielding ink 51 is black ink or white ink.
[0037] Further, the thickness of the part of the first layer of light-shielding ink 51, the second layer of light-shielding ink 52, and the button pattern ink 53 that exceeds the second layer of light-shielding ink 52 is 0.005 mm - 0.015 mm.
[0038] Further, the second layer of light-shielding ink 52 is black ink.
[0039] Further, the edge of the second layer of light-shielding ink 52 at the hollow part extends 0.3 mm - 1.2 mm outward relative to the edge of the first layer of light-shielding ink 51, and the edge of the button pattern ink 53 exceeds the edge of the hollow part of the second layer of light-shielding ink 52 by 0.2 mm - 1.0 mm.
[0040] Further, the material of the protective layer 55 is insulating oil, and the insulating oil adopts a screen printing process to protect the inductive button silver paste layer 54, isolate the inductive button silver paste layer 54 from the air, and improve reliability.
[0041] Please refer to Figures 4 to 6 , as a further optimized solution of Embodiment 1, in this embodiment, a traceability label paper 8 and a shielding paper 9 are provided on the surface of the FPC 7. The traceability label paper 8 is pasted on the surface of the FPC 7, and the shielding paper 9 covers the surface of the FPC 7 and the traceability label paper 8. The shielding paper 9 includes a shielding layer 91, an adhesive layer 92, and a non-adhesive layer 93 that are sequentially stacked from top to bottom. The size and position of the non-adhesive layer 93 correspond to the size and position of the traceability label paper 8, the non-adhesive layer 93 covers the traceability label paper 8, and the adhesive layer 92 covers the surface of the FPC 7. Since the non-adhesive layer 93 is provided at the lowermost layer of the shielding paper 9 and the non-adhesive layer 93 covers the traceability label paper 8, while the adhesive layer 92 covers other areas on the surface of the FPC 7, that is, by adding a non-adhesive non-adhesive layer 93 in the corresponding area of the traceability label paper 8, the adhesiveness of the shielding paper 9 is isolated from the traceability label paper 8, which can avoid the problem that the traceability code on the traceability label paper 8 is easily peeled off due to the adhesiveness of the shielding paper 9 during rework, and improve the traceability of product accessories.
[0042] Further, the thickness of the non-adhesive layer 93 is 0.03 mm - 0.06 mm. The edge of the non-adhesive layer 93 extends 1.5 mm to 3 mm beyond the edge of the traceability label paper 8 to ensure that the non-adhesive layer 93 can still completely cover the traceability label paper 8 in the case of pasting deviation. In addition, the appearance colors of the non-adhesive layer 93 and the shielding layer 91 are different, so that it is easy to distinguish whether the non-adhesive layer 93 is missed pasted with the naked eye, ensuring the consistency of the product. More preferably, the color of the non-adhesive layer 93 is white and the color of the shielding layer 91 is black. Using white and black can better distinguish the non-adhesive layer 93 and the shielding layer 91.
[0043] In the present utility model, unless otherwise clearly specified or limited, terms such as "installed", "connected", "joined", "fixed", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, or integrated; it may be a mechanical connection, an electrical connection, or communicable with each other; it may be directly connected, or indirectly connected through an intermediate medium, and it may be the internal communication of two components or the interaction relationship between two components, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.
[0044] Obviously, the embodiments described above are only a part of the embodiments of the present application, rather than all embodiments. The drawings show preferred embodiments of the present application, but do not limit the scope of the patent 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 disclosed content of the present application more thorough and comprehensive. Although the present application has been described in detail with reference to the foregoing embodiments, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on some of the technical features. Any equivalent structure directly or indirectly using the content of the specification and drawings of the present application in other related technical fields is similarly within the scope of the patent protection of the present application.
Claims
1. A narrow-frame liquid crystal display with key functions, characterized in that: It includes a lower polarizer, a lower substrate, an upper substrate, an upper polarizer and a cover plate which are stacked in sequence from bottom to top, the lower substrate is longer than the upper substrate and extends outward to form a step, the upper surface of the lower substrate located at the step is bound with a driver IC, the lower surface of the cover plate is provided with a first layer of light-shielding ink, the lower surface of the first layer of light-shielding ink is provided with a second layer of light-shielding ink, the first layer of light-shielding ink and the second layer of light-shielding ink are provided with at least one hollow portion, each of the hollow portions is provided with a key pattern ink, the key pattern ink is white ink or mirror ink, the lower surfaces of the second layer of light-shielding ink and the key pattern ink are provided with a sensing key silver paste layer, the lower surface of the sensing key silver paste layer is covered with a protective layer, the key pattern ink is located directly above the driver IC, and the sensing key silver paste layer is connected to an FPC.
2. The narrow-framed liquid crystal display with key functions according to claim 1, characterized in that: The cover plate is made of tempered glass, and the thickness of the cover plate is 0.7 mm-3.0 mm.
3. The narrow-framed liquid crystal display with key functions according to claim 1, characterized in that: The first layer of light-shielding ink is black ink or white ink.
4. The narrow-framed liquid crystal display with key functions according to claim 1, characterized in that: The thickness of the first light-shielding ink layer, the second light-shielding ink layer and the portion of the key pattern ink layer that exceeds the second light-shielding ink layer are all 0.005 mm to 0.015 mm.
5. The narrow-framed liquid crystal display with key functions according to claim 1, characterized in that: The second layer of light-shielding ink is black ink.
6. The narrow-framed liquid crystal display with key functions according to claim 1, characterized in that: The edge of the second layer of light-shielding ink at the hollow portion is 0.3mm-1.2mm larger than the edge of the first layer of light-shielding ink, and the edge of the key pattern ink exceeds the edge of the second layer of light-shielding ink at the hollow portion by 0.2mm-1.0mm.
7. The narrow-framed liquid crystal display with key functions according to claim 1, characterized in that: The material of the protective layer is insulating oil.
8. The narrow-framed liquid crystal display with key functions according to claim 1, characterized in that: A traceability label paper and a shielding paper are provided on the surface of the FPC, the shielding paper covers the surface of the FPC and the traceability label paper, the shielding paper comprises a shielding layer, a glue layer and a non-adhesive layer stacked in sequence from top to bottom, the size and position of the non-adhesive layer correspond to the size and position of the traceability label paper, the non-adhesive layer covers the traceability label paper, and the glue layer covers the surface of the FPC.
9. The narrow-framed liquid crystal display with key functions according to claim 8, characterized in that: The edge of the non-adhesive layer exceeds the edge of the traceability label paper by 1.5 mm to 3 mm.
10. The narrow-framed liquid crystal display with key functions according to claim 8, characterized in that: The non-adhesive layer and the shielding layer have different appearance colors.