Liquid crystal display screen capable of preventing ACF from being pasted reversely
By setting a non-axially symmetric mark on the array substrate of the liquid crystal display screen and a groove embedded in the plastic layer on the cover plate, the problem of TFT glass reversal is solved, which improves production efficiency and reduces material waste.
Patent Information
- Application Number
- CN202420180322.8
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-23
- Publication Date
- 2024-12-17
- Estimated Expiration
- 2034-01-23
AI Technical Summary
TFT glass is easily reversal when attached to ACF, resulting in waste of materials and reduced production efficiency, because automatic equipment cannot identify the logo and cannot accurately attach FPC binding and positioning.
Two non-axially symmetric marks, such as cross marks and back marks, are designed to be placed on the upper surface of the array substrate, and multiple grooves are etched on the cover plate to embed the plastic layer, ensuring that the automatic device can identify the correct orientation of the glass, and Improve the adhesion accuracy.
It effectively avoids ACF patching, reduces material waste, improves the production efficiency of LCD screens, and enhances the recognition ability of equipment.
Smart Images
Figure CN222189620U_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 capable of preventing ACF from being pasted upside down. Background Art
[0002] The common structure of TFT glass is that the array substrate is longer than the color film substrate. The area where the array substrate is longer than the color film substrate is provided with an FPC binding pad for binding the FPC. Before binding the FPC, a layer of ACF needs to be attached to the binding position. ACF is generally attached by automatic equipment. In order for the automatic equipment to be able to grasp the mark and identify it, a pair of marks are usually designed on both sides of the binding position at the lower end of the array substrate. When attaching the ACF, a CCD camera can be used to calibrate the mark. Since the appearance of the two marks is the same, if the TFT glass is placed upside down, that is, the array substrate is facing up, the equipment cannot recognize it, resulting in the ACF being attached to the area on the other side of the array substrate where the FPC does not need to be bound, resulting in material waste. The product also needs to be reworked to remove the ACF, affecting production efficiency. Utility Model Content
[0003] The technical problem to be solved by the utility model is how to prevent ACF from being pasted upside down, avoid material waste and improve production efficiency.
[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 that prevents ACF from being pasted upside down, which includes a lower polarizer, an array substrate, a color filter substrate, an upper polarizer and a cover plate that are stacked in sequence from bottom to top, the array substrate is longer than the color filter substrate and extends outward to form a step, the upper surface of the array substrate located at the step is provided with an FPC binding position, and the upper surface of the array substrate located on both sides of the FPC binding position is provided with two marks, and the patterns of the two marks are non-axisymmetric patterns.
[0006] As a preferred implementation of the liquid crystal display screen for preventing ACF from being pasted upside down provided by the utility model, one of the marks is a cross mark, and the other mark is a circle mark.
[0007] As a preferred embodiment of the liquid crystal display screen for preventing ACF from being pasted upside down provided by the utility model, a plurality of grooves are formed on the upper surface of the cover plate by etching, and a plastic layer is covered on the upper side of the cover plate, and the plastic layer is embedded in the plurality of the grooves.
[0008] As a preferred implementation of the liquid crystal display screen for preventing ACF from being pasted upside down provided by the utility model, the shape of the groove is square or circular.
[0009] As a preferred implementation of the liquid crystal display screen for preventing ACF from being pasted upside down provided by the utility model, the groove is a closing groove which is narrow outside and wide inside.
[0010] As a preferred implementation of the liquid crystal display screen for preventing ACF from being pasted upside down provided by the utility model, the cross-sectional shape of the groove is an isosceles trapezoid.
[0011] As a preferred implementation of the liquid crystal display screen for preventing ACF from being pasted upside down provided by the utility model, a protrusion is provided on the edge of the upper surface of the array substrate extending outward, and a buffer glue is provided on the upper surface of the array substrate between the protrusion and the color film substrate, and the buffer glue is in contact with the cover plate.
[0012] As a preferred implementation of the liquid crystal display screen for preventing the ACF from being pasted upside down provided by the utility model, the upper surface of the protrusion is flush with the upper surface of the color film substrate.
[0013] As a preferred implementation of the liquid crystal display screen for preventing ACF from being pasted upside down provided by the utility model, a rounded corner is arranged between the protrusion and the array substrate.
[0014] As a preferred implementation of the liquid crystal display screen for preventing ACF from being pasted upside down provided by the utility model, the upper surface of the array substrate and the side surface of the protrusion are rough surfaces.
[0015] The utility model has the following beneficial effects:
[0016] Since the graphics of the two marks are non-axisymmetric, the automatic equipment recognizes this icon as the default state. If the TFT glass is placed upside down, the automatic equipment can recognize it and select the glass. There is no need to attach ACF, which avoids material waste and improves the production efficiency of LCD screens. 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 for preventing ACF from being pasted upside down.
[0019] Figure 2 It is a top view of the array substrate and the color filter substrate.
[0020] Figure 3 for Figure 2 Another structural diagram of .
[0021] Figure 4 This is a schematic diagram of the structure of Example 2.
[0022] Figure 5 for Figure 4 Schematic diagram of the decomposition structure.
[0023] Figure 6 for Figure 4 Schematic diagram of the improved structure.
[0024] Figure 7 This is a schematic diagram of the structure of Example 3.
[0025] Description of Figure Numbers:
[0026] Lower polarizer 1; array substrate 2; color filter substrate 3; upper polarizer 4; cover plate 5; FPC binding position 6; mark 7;
[0027] Plastic layer 8; groove 51;
[0028] Protrusion 21; Buffer rubber 22. DETAILED DESCRIPTION
[0029] 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.
[0030] 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.
[0031] 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.
[0032] The utility model provides a liquid crystal display screen for preventing ACF from being pasted upside down, comprising a lower polarizer, an array substrate, a color film substrate, an upper polarizer and a cover plate which are sequentially stacked from bottom to top, wherein the array substrate is longer than the color film substrate and extends outward to form a step, an FPC binding position is arranged on the upper surface of the array substrate located at the step, and two marks are arranged on the upper surface of the array substrate located on both sides of the FPC binding position, and the patterns of the two marks are non-axisymmetric patterns.
[0033] Since the graphics of the two marks are non-axisymmetric, the automatic equipment recognizes this icon as the default state. If the TFT glass is placed upside down, the automatic equipment can recognize it and select the glass. There is no need to attach ACF, which avoids material waste and improves the production efficiency of LCD screens.
[0034] 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.
[0035] Example 1
[0036] See also Figures 1 to 3, a liquid crystal display screen that prevents ACF from being pasted upside down is provided by the utility model, which includes a lower polarizer 1, an array substrate 2, a color filter substrate 3, an upper polarizer 4 and a cover plate 5 that are sequentially stacked from bottom to top, the array substrate 2 is longer than the color filter substrate 3 and extends outward to form a step, and an FPC binding position 6 is provided on the upper surface of the array substrate 2 located at the step, and two marks 7 are provided on the upper surface of the array substrate 2 located on both sides of the FPC binding position 6, and the pattern of the mark 7 is a non-axisymmetric pattern. Since the patterns of the two marks 7 are non-axisymmetric patterns, the automatic equipment recognizes this icon as the default state. If the TFT glass is placed upside down, the automatic equipment can recognize it, and the automatic equipment setting selects this glass, and there is no need to attach ACF, thereby avoiding material waste and improving the production efficiency of the liquid crystal display screen.
[0037] Furthermore, one of the marks 7 is a cross mark, and the other mark 7 is a circle mark.
[0038] Furthermore, one of the marks 7 is a T mark, and the other mark 7 is an inverted T mark.
[0039] Example 2
[0040] See also Figures 4 to 6 As a further optimization scheme of Example 1, in this embodiment, the upper surface of the cover plate 5 is covered with a plastic layer 8, and a plurality of grooves 51 are formed downward on the upper surface of the cover plate 5 by etching, and a portion of the lower surface of the plastic layer 8 is embedded in each groove 51. Since the surface of the groove 51 formed by etching has a certain degree of roughness, the plastic layer 8 can be tightly bonded to the groove 51 to prevent the cover plate 5 and the plastic layer 8 from falling off. Since the upper part of the cover plate 5 is covered with a plastic layer 8, and a plurality of grooves 51 are formed on the upper surface of the cover plate 5 by etching, and the plastic layer 8 can be embedded in the interior of the plurality of grooves 51, the grooves 51 formed by etching make the inner surface of the grooves 51 have a certain degree of roughness, and the surface of the grooves 51 with a certain degree of roughness can improve the bonding force between the grooves 51 and the plastic layer 8, thereby reducing the possibility of separation of the grooves 51 and the plastic layer 8. When the LCD screen is hit or falls, the plastic layer 8 on the upper surface of the cover plate 5 can directly withstand the external force, thereby preventing the external force from directly acting on the cover plate 5. Since the plastic layer 8 can absorb most of the energy, the remaining external force is very weak when it acts on the cover plate 5, thereby effectively reducing the risk of the cover plate 5 being broken or damaged; and when the LCD screen is subjected to external force, even if the external force is large, it will only damage the plastic layer 8 on the upper surface of the cover plate 5, and will not directly damage the cover plate 5, thereby preventing the cover plate 5 from being damaged and causing the LCD screen to be unable to be used normally, thereby bringing a better user experience to users and improving the anti-fall ability of the LCD screen.
[0041] Furthermore, the shape of the groove 51 can be square or circular, and the cross-sectional shape of the groove 51 can be a closing groove that is narrow on the outside and wide on the inside. In the present embodiment, the cross-sectional shape of the groove 51 is an isosceles trapezoid, and the groove 51 is in the shape of an elongated strip. The isosceles trapezoid-shaped groove 51 can allow the plastic layer 8 to be tightly embedded in the groove 51, thereby preventing the groove 51 from separating from the plastic layer 8, thereby preventing the cover plate 5 from falling off from the plastic layer 8. The elongated groove 51 can increase the fitting portion between the plastic layer 8 and the groove 51, thereby increasing the fitting strength between the groove 51 and the plastic layer 8.
[0042] Example 3
[0043] See also Figure 7 As a further optimization scheme of Example 1, in this embodiment, a protrusion 21 is provided on the edge of the upper surface of the array substrate 2 extending outward, and a buffer glue 22 is provided on the upper surface of the array substrate 2 between the protrusion 21 and the color film substrate 3, and the buffer glue 22 abuts against the cover plate 5. Since the edge of the array substrate 2 is provided with a protrusion 21, the protrusion 21 can limit the flow of the buffer glue 22, so that the shape of the buffer glue 22 is easy to control, and there will be no overflow of glue or incomplete glue dispensing. This prevents the liquid crystal display screen from being unable to be assembled with the casing. In addition, the problem of poor buffering effect caused by incomplete glue dispensing and easy rupture of the array substrate 2 is avoided, and the abnormal display of the liquid crystal display screen is prevented.
[0044] Furthermore, the upper surface of the protrusion 21 is flush with the upper surface of the color filter substrate 3 to further limit the flow of the buffer glue 22, so that the shape of the buffer glue 22 is easy to control without overflowing glue or incomplete glue dispensing.
[0045] Furthermore, the buffer glue 22 is silicone glue.
[0046] Furthermore, a chamfer is provided between the protrusion 21 and the array substrate 2 so that the buffer glue 22 can more easily fill the space between the protrusion 21 on the upper surface of the array substrate 2 and the color filter substrate 3. The protrusion 21 with a chamfer can make the buffer glue 22 flow more smoothly into the space between the protrusion 21 on the upper surface of the array substrate 2 and the color filter substrate 3, so that bubbles are less likely to appear.
[0047] Furthermore, the upper surface of the array substrate 2 and the side surfaces of the protrusions 21 are rough surfaces to improve the fixing effect of the buffer glue 22 .
[0048] Furthermore, the rough surface is a frosted surface or a diamond knurled surface to further improve the fixing effect of the buffer glue 22 .
[0049] 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.
[0050] 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 for preventing ACF from being pasted upside down, characterized in that: It includes a lower polarizer, an array substrate, a color filter substrate, an upper polarizer and a cover plate which are stacked in sequence from bottom to top. The array substrate is longer than the color filter substrate and extends outward to form a step. An FPC binding position is arranged on the upper surface of the array substrate located at the step. Two marks are arranged on the upper surface of the array substrate on both sides of the FPC binding position. The patterns of the two marks are non-axisymmetric patterns.
2. The liquid crystal display screen for preventing ACF from being pasted upside down according to claim 1, characterized in that: One of the marks is a cross mark, and the other mark is a circle mark.
3. The liquid crystal display screen for preventing ACF from being pasted upside down according to claim 1, characterized in that: A plurality of grooves are formed on the upper surface of the cover plate by etching, and a plastic layer is covered on the upper side of the cover plate, and the plastic layer is embedded in the plurality of grooves.
4. The liquid crystal display screen for preventing ACF from being reversed according to claim 3, characterized in that: The shape of the groove is square or circular.
5. The liquid crystal display screen for preventing ACF from being pasted upside down according to claim 3, characterized in that: The groove is a closing groove which is narrow outside and wide inside.
6. The liquid crystal display screen for preventing ACF from being reversed according to claim 5, characterized in that: The cross-sectional shape of the groove is an isosceles trapezoid.
7. The liquid crystal display screen for preventing ACF from being pasted upside down according to claim 1, characterized in that: A protrusion is arranged on the edge of the upper surface of the array substrate extending outward, and a buffer glue is arranged on the upper surface of the array substrate between the protrusion and the color filter substrate, and the buffer glue abuts against the cover plate.
8. The liquid crystal display screen for preventing ACF from being pasted upside down according to claim 7, characterized in that: The upper surface of the protrusion is flush with the upper surface of the color film substrate.
9. The liquid crystal display screen for preventing ACF from being reversed according to claim 7, characterized in that: A rounded corner is arranged between the protrusion and the array substrate.
10. The liquid crystal display screen for preventing ACF from being pasted upside down according to claim 7, characterized in that: The upper surface of the array substrate and the side surfaces of the protrusion are rough surfaces.