DITO liquid crystal display screen capable of improving reliability
By adopting a structure that fully covers SiO2 atomic crystal plating in the DITO liquid crystal display, the problem of insufficient reliability of traditional GG DITO structure is solved, and higher display reliability and competitiveness are achieved.
Patent Information
- Application Number
- CN202421560053.4
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-03
- Publication Date
- 2025-04-22
- Estimated Expiration
- 2034-07-03
AI Technical Summary
The reliability of the traditional GG DITO structure is insufficient, especially the protection of the ITO pattern layer, which leads to abnormal display and reduces the competitiveness of the product.
The structure includes a glass substrate, an ITO pattern layer, a silver paste layer, a FPC and a SiO2 atomic crystal plating layer is adopted, and the ITO pattern layer is effectively protected by the comprehensive coverage and binding positioning of the SiO2 atomic crystal plating layer.
It improves the reliability of the DITO LCD screen, avoids display abnormalities, and enhances the competitiveness of the product.
Smart Images
Figure CN222784712U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to a DITO liquid crystal display screen with improved reliability. Background Art
[0002] GG DITO structure is one of the common structures of touch screen. Compared with the traditional GG SITO touch screen structure, it is cheaper and has a simpler process flow, but the traditional GG DITO structure has the problem of insufficient reliability, especially the ITO pattern layer needs to be effectively protected, otherwise it is easy to display abnormalities, reducing the competitiveness of the product. Utility Model Content
[0003] The technical problem to be solved by the utility model is how to improve the reliability of the DITO liquid crystal display screen.
[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 DITO liquid crystal display screen with improved reliability, which includes a glass substrate, a first ITO pattern layer, a second ITO pattern layer, a first silver paste layer, a second silver paste layer, a first FPC, a second FPC, a first SiO2 atomic crystal coating and a second SiO2 atomic crystal coating, the first ITO pattern layer is arranged on the upper surface of the glass substrate and is located in the visible area; the second ITO pattern layer is arranged on the lower surface of the glass substrate and is located in the visible area; the first silver paste layer is arranged on the upper surface of the first ITO pattern layer and is located in the non-visible area; the second silver paste layer is arranged on the lower surface of the second ITO pattern layer and is located in the non-visible area; the first FPC is bound to one end of the first silver paste layer; the second FPC is bound to one end of the second silver paste layer; the first SiO2 atomic crystal coating covers the first ITO pattern layer and the first silver paste layer above and avoids the binding position of the first FPC; the second SiO2 atomic crystal coating covers the second ITO pattern layer and the second silver paste layer below and avoids the binding position of the second FPC.
[0006] As a preferred embodiment of the DITO liquid crystal display with improved reliability provided by the utility model, a first insulating oil is provided on the upper surface of the first SiO2 atomic crystal coating, and the first insulating oil is located in the non-visible area; a second insulating oil is provided on the lower surface of the second SiO2 atomic crystal coating, and the second insulating oil is located in the non-visible area.
[0007] As a preferred implementation of the DITO liquid crystal display screen with improved reliability provided by the utility model, a cover plate is arranged above the glass substrate, an ink layer is arranged on the lower surface of the cover plate located in the non-visible area, and the cover plate is bonded to the glass substrate by optical glue.
[0008] As a preferred implementation of the DITO liquid crystal display screen with improved reliability provided by the utility model, an optical film coating is provided on the upper surface of the cover plate.
[0009] As a preferred implementation of the DITO liquid crystal display screen with improved reliability provided by the utility model, the first FPC includes a non-bending area and bending areas arranged on both sides of the non-bending area, and a PI reinforcement plate and a plurality of vias are provided on the bending area, and the PI reinforcement plate completely covers the plurality of vias.
[0010] As a preferred implementation of the DITO liquid crystal display screen with improved reliability provided by the utility model, a plurality of via holes are arranged in a line segment shape.
[0011] As a preferred implementation of the DITO liquid crystal display screen with improved reliability provided by the utility model, the first FPC includes a lower protective film, a lower copper layer, a substrate layer, an upper copper layer and an upper protective film arranged in sequence from bottom to top, and the PI reinforcement plate is arranged above the upper protective film.
[0012] As a preferred implementation of the DITO liquid crystal display screen with improved reliability provided by the utility model, the PI reinforcement plate is a PI covering film.
[0013] As a preferred implementation of the DITO liquid crystal display screen with improved reliability provided by the utility model, the PI reinforcement plate does not exceed the non-bending area.
[0014] As a preferred implementation of the DITO liquid crystal display screen with improved reliability provided by the utility model, the via hole is in the shape of a circular hole.
[0015] The utility model has the following beneficial effects:
[0016] Since the first ITO pattern layer and the first silver paste layer are covered with the first SiO2 atomic crystal coating, and the second ITO pattern layer and the second silver paste layer are covered with the second SiO2 atomic crystal coating, the SiO2 atomic crystal coating fully covers the entire area except for the binding site. Since the SiO2 atomic crystal coating has the characteristics of high hardness, it is also lubricating and wear-resistant. It is an atomic crystal and can effectively protect the first ITO pattern layer and the second ITO pattern layer from oxidation at high temperatures, avoiding display anomalies, and can effectively improve the reliability of the DITO liquid crystal display and enhance 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 DITO liquid crystal display screen with improved reliability.
[0019] Figure 2 for Figure 1 Schematic diagram of the improved structure.
[0020] Figure 3 This is a schematic diagram of the improved structure of the first FPC.
[0021] Figure 4 Schematic diagram of the location of vias on the first FPC.
[0022] Description of Figure Numbers:
[0023] Glass substrate 1; first ITO pattern layer 2; second ITO pattern layer 3; first silver paste layer 4; second silver paste layer 5; first FPC 6; second FPC 7; first SiO2 atomic crystal coating 8; second SiO2 atomic crystal coating 9;
[0024] First insulating oil 10; second insulating oil 11; cover plate 12; ink layer 13; optical adhesive 14; optical film coating 15;
[0025] Non-bending area 601; bending area 602; PI reinforcement plate 61; via 62; lower protective film 63; lower copper layer 64; substrate layer 65; upper copper layer 66; upper protective film 67. DETAILED DESCRIPTION
[0026] 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.
[0027] 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.
[0028] 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.
[0029] The utility model provides a DITO liquid crystal display screen with improved reliability, which includes a glass substrate, a first ITO pattern layer, a second ITO pattern layer, a first silver paste layer, a second silver paste layer, a first FPC, a second FPC, a first SiO2 atomic crystal coating and a second SiO2 atomic crystal coating, wherein the first ITO pattern layer is arranged on the upper surface of the glass substrate and is located in a visible area; the second ITO pattern layer is arranged on the lower surface of the glass substrate and is located in a visible area; the first silver paste layer is arranged on the upper surface of the first ITO pattern layer and is located in a non-visual area; the second silver paste layer is arranged on the lower surface of the second ITO pattern layer and is located in a non-visual area; the first FPC is bound to one end of the first silver paste layer; the second FPC is bound to one end of the second silver paste layer; the first SiO2 atomic crystal coating covers above the first ITO pattern layer and the first silver paste layer and avoids the binding position of the first FPC; the second SiO2 atomic crystal coating covers below the second ITO pattern layer and the second silver paste layer and avoids the binding position of the second FPC.
[0030] Since the first ITO pattern layer and the first silver paste layer are covered with the first SiO2 atomic crystal coating, and the second ITO pattern layer and the second silver paste layer are covered with the second SiO2 atomic crystal coating, the SiO2 atomic crystal coating fully covers the entire area except for the binding site. Since the SiO2 atomic crystal coating has the characteristics of high hardness, it is also lubricating and wear-resistant. It is an atomic crystal and can effectively protect the first ITO pattern layer and the second ITO pattern layer from oxidation at high temperatures, avoiding display anomalies, and can effectively improve the reliability of the DITO liquid crystal display and enhance the competitiveness of the product.
[0031] 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.
[0032] See also Figure 1, a DITO liquid crystal display screen with improved reliability provided by the utility model, comprising a glass substrate 1, a first ITO pattern layer 2, a second ITO pattern layer 3, a first silver paste layer 4, a second silver paste layer 5, a first FPC 6, a second FPC 7, a first SiO2 atomic crystal coating layer 8 and a second SiO2 atomic crystal coating layer 9, the first ITO pattern layer 2 is arranged on the upper surface of the glass substrate 1 and is located in the visible area; the second ITO pattern layer 3 is arranged on the lower surface of the glass substrate 1 and is located in the visible area; the first silver paste layer 4 is arranged on the upper surface of the first ITO pattern layer 2 and is located in the non-visible area, that is, the overlap of the first silver paste layer 4 after silk screen printing is on the upper surface of the first ITO pattern layer 2, and the non-overlapping part is on the first IT The first ITO pattern layer 2 is in the same plane; the second silver paste layer 5 is arranged on the lower surface of the second ITO pattern layer 3 and is located in the non-visible area, that is, the overlap of the second silver paste layer 5 after silk screen printing is on the lower surface of the second ITO pattern layer 3, and the non-overlapping part is in the same plane as the lower surface of the second ITO pattern layer 3; the first FPC6 is bound to one end of the first silver paste layer 4; the second FPC7 is bound to one end of the second silver paste layer 5; the first SiO2 atomic crystal coating 8 completely covers the first ITO pattern layer 2 and the first silver paste layer 4 and avoids the binding position of the first FPC6; the second SiO2 atomic crystal coating 9 completely covers the second ITO pattern layer 3 and the second silver paste layer 5 and avoids the binding position of the second FPC7. Since the first ITO pattern layer 2 and the first silver paste layer 4 are covered with the first SiO2 atomic crystal coating 8, and the second ITO pattern layer 3 and the second silver paste layer 5 are covered with the second SiO2 atomic crystal coating 9, the SiO2 atomic crystal coating fully covers the remaining areas except for avoiding the binding position. Since the SiO2 atomic crystal coating has the characteristics of high hardness, it is also lubricating and wear-resistant. As an atomic crystal, it is anti-oxidative at high temperatures and can effectively protect the first ITO pattern layer 2 and the second ITO pattern layer 3 to avoid display anomalies. It can effectively improve the reliability of the DITO liquid crystal display and enhance the competitiveness of the product.
[0033] See also Figure 2 Furthermore, a first insulating oil 10 is provided on the upper surface of the first SiO2 atomic crystal coating 8, and the first insulating oil 10 is located in the non-visible area. A second insulating oil 11 is provided on the lower surface of the second SiO2 atomic crystal coating 9, and the second insulating oil 11 is located in the non-visible area to improve the insulation effect.
[0034] Furthermore, a cover plate 12 is arranged above the glass substrate 1, an ink layer 13 is arranged on the lower surface of the cover plate 12 located in the non-visible area, the cover plate 12 and the glass substrate 1 are bonded by optical glue 14, and an optical film coating 15 is arranged on the upper surface of the cover plate 12 to improve the optical effect.
[0035] See also Figure 3 and Figure 4As a further optimization scheme of Example 1, in this embodiment, the first FPC6 includes a non-bending area 601 and a bending area 602 arranged on both sides of the non-bending area 601. The bending area 602 is provided with a PI reinforcing plate 61 and a plurality of vias 62. These vias 62 are bridges connecting the upper and lower copper layers, and their reliability is very important. The vias 62 cannot be subjected to heavy pressure, and are afraid of being scratched, and are even more afraid of being broken. Therefore, it is not allowed to punch vias 62 in the general bending area 602, because the bending force will directly act on the vias 62, affecting the reliability of the vias 62. The PI reinforcing plate 61 completely covers a plurality of vias 62. There are multiple vias 62 on the non-bending area 601, and the vias 62 are relatively fragile, which is easy to cause stress concentration and cause fracture at the vias 62. Since the PI reinforcing plate 61 completely covers the vias 62, the stress is concentrated around the reinforcing plate instead of at the vias 62, preventing the risk of fracture at the vias 62 and avoiding the failure of the first FPC6.
[0036] Furthermore, a plurality of via holes 62 are arranged in a line segment shape. Since a reinforcing plate completely covering the via holes 62 is provided, even if the via holes 62 are arranged in a line segment shape, it can be ensured that the via holes 62 are not prone to breakage, thereby improving the designability of the product and improving the competitiveness of the product.
[0037] Furthermore, the first FPC 6 includes a lower protective film 63 , a lower copper layer 64 , a substrate layer 65 , an upper copper layer 66 and an upper protective film 67 which are sequentially arranged from bottom to top, and the PI reinforcement plate 61 is arranged above the upper protective film 67 .
[0038] Furthermore, the PI reinforcing plate 61 is a PI covering film, which has lower cost and simpler assembly process.
[0039] Furthermore, the thickness of the PI covering film is 0.1 mm to ensure that the PI covering film has sufficient strength. The PI covering film is fixed by double-sided adhesive with a thickness of 0.025 mm. The edge of the covering film is more than 0.5 mm away from the via 62 to ensure that the stress concentration does not affect the via 62, prevent the risk of fracture at the via 62, and avoid failure of the first FPC6.
[0040] Furthermore, the PI reinforcing plate 61 does not extend beyond the non-bending area 601. That is, the PI reinforcing plate 61 is disposed in the non-bending area 601 to prevent stress from being concentrated in the bending area 602 and to avoid fracture in the bending area 602.
[0041] Furthermore, the via hole 62 is in the shape of a circular hole.
[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 DITO liquid crystal display screen with improved reliability, characterized in that: It includes: Glass substrate; A first ITO pattern layer, which is disposed on the upper surface of the glass substrate and is located in a visible area; A second ITO pattern layer is disposed on the lower surface of the glass substrate and is located in the visible area; A first silver paste layer, which is disposed on the upper surface of the first ITO pattern layer and is located in a non-visible area; A second silver paste layer, which is disposed on the lower surface of the second ITO pattern layer and is located in a non-visible area; A first FPC, which is bound to one end of the first silver paste layer; A second FPC, which is bound to one end of the second silver paste layer; A first SiO2 atomic crystal coating layer, which covers the first ITO pattern layer and the first silver paste layer and avoids the binding position of the first FPC; The second SiO2 atomic crystal coating covers the second ITO pattern layer and the second silver paste layer and avoids the binding position of the second FPC.
2. The DITO liquid crystal display with improved reliability according to claim 1, characterized in that: A first insulating oil is disposed on the upper surface of the first SiO2 atomic crystal coating, and the first insulating oil is located in a non-visible area. A second insulating oil is disposed on the lower surface of the second SiO2 atomic crystal coating, and the second insulating oil is located in a non-visible area.
3. The DITO liquid crystal display with improved reliability according to claim 1, characterized in that: A cover plate is arranged above the glass substrate, an ink layer is arranged on the lower surface of the cover plate located in the non-visible area, and the cover plate is bonded to the glass substrate by optical adhesive.
4. The DITO liquid crystal display with improved reliability according to claim 3, characterized in that: An optical film coating is provided on the upper surface of the cover plate.
5. The DITO liquid crystal display with improved reliability according to claim 1, characterized in that: The first FPC includes a non-bending area and bending areas arranged on both sides of the non-bending area. A PI reinforcing plate and a plurality of vias are arranged on the bending area, and the PI reinforcing plate completely covers the plurality of vias.
6. The DITO liquid crystal display with improved reliability according to claim 5, characterized in that: A plurality of the via holes are arranged in a line segment shape.
7. The DITO liquid crystal display with improved reliability according to claim 5, characterized in that: The first FPC includes a lower protective film, a lower copper layer, a substrate layer, an upper copper layer and an upper protective film which are sequentially arranged from bottom to top, and the PI reinforcement plate is arranged above the upper protective film.
8. The DITO liquid crystal display with improved reliability according to claim 5, characterized in that: The PI reinforcing plate is a PI covering film.
9. The DITO liquid crystal display with improved reliability according to claim 5, characterized in that: The PI reinforcing plate does not extend beyond the non-bending area.
10. The DITO liquid crystal display screen with improved reliability according to claim 5, characterized in that: The via hole is in the shape of a circular hole.