LCD (liquid crystal display) and TFT (thin film transistor) spliced screen integrated black assembly

Abstract

The utility model discloses an LCD (liquid crystal display) and TFT (thin film transistor) spliced screen integrated black assembly, which comprises an LCD screen body and a TFT screen body, the LCD screen body comprises a first lower polarizing layer, a lower glass substrate is arranged on the upper surface of the first lower polarizing layer, an upper glass substrate is arranged on the upper surface of the lower glass substrate, a first surface ITO (indium tin oxide) layer is arranged on the upper surface of the upper glass substrate, and a second surface ITO layer is arranged on the upper surface of the first surface ITO layer. The TFT screen body comprises a first surface ITO layer, a first upper polarization layer is arranged on the upper surface of the first surface ITO layer, the TFT screen body comprises a second lower polarization layer, an array substrate is arranged on the upper surface of the second lower polarization layer, a color film substrate is arranged on the upper surface of the array substrate, a second surface ITO layer is arranged on the upper surface of the color film substrate, a second upper polarization layer is arranged on the upper surface of the second surface ITO layer, and the second upper polarization layer is arranged on the upper surface of the second surface ITO layer. And the difference value of the reflectivity of the first upper polarizing layer and the second upper polarizing layer is less than or equal to 0.5. As the reflectivity of the LCD screen body is close to that of the TFT screen body, light reflected by the same light source is closer, and an integrated black effect is achieved.

Description

Technical Field

[0001] The utility model relates to a splicing screen, and more precisely, to an integrated black component of an LCD and a TFT splicing screen. Background Art

[0002] In the industry, LCD screens and TFT screens are often spliced to obtain a splicing screen. Due to the different characteristics of LCD screens and TFT screens, there will be obvious color differences when they are paired and spliced, with poor integration and it is difficult to achieve the effect of integrated black.

[0003] Chinese invention patent document CN113851054B discloses a splicing screen, including at least two sub-splicing screens. The splicing screen further includes a first seam formed by splicing edge members of two adjacent sub-splicing screens, and a seam elimination structure is filled in the first seam; wherein, the absolute value of the difference between the refractive index of the seam elimination structure and the refractive index of the edge member is less than a first threshold; the splicing screen further includes a mother board, and each sub-splicing screen is adhered to the mother board, and a plurality of driving modules arranged in an array are further provided on the mother board; wherein, each sub-splicing screen includes a plurality of display panels arranged in an array, and one display panel corresponds to and is electrically connected to one driving module, and a second seam is formed by splicing between two adjacent display panels, and the seam width of the second seam is less than the seam width of the first seam. The seam elimination structure includes a liquid optical glue, and the liquid optical glue includes any one of silicone-based liquid optical glue and acrylic resin-based liquid optical glue. The seam elimination structure includes a liquid optical glue and a first solid optical glue, the liquid optical glue completely fills the first seam, and the first solid optical glue is attached to the liquid optical glue. The first distance between the driving modules on both sides of the first seam is greater than the second distance between two adjacent driving modules in the same sub-splicing screen. A second solid optical glue is filled in the second seam. The cross-section of the first seam perpendicular to the light-emitting direction of the sub-splicing screen is an inverted trapezoid. The splicing screen further includes a packaging layer provided on a plurality of the sub-splicing screens, and the absolute value of the difference between the refractive index of the seam elimination structure and the refractive index of the packaging layer is less than 0.1. The first threshold is less than or equal to 0.1.

[0004] Obviously, the splicing screen of this patent includes two sub - splicing screens. The splicing screen further includes a first seam formed by splicing the edge members of two adjacent sub - splicing screens. A seam elimination structure is filled in the first seam. Among them, the absolute value of the difference between the refractive index of the seam elimination structure and the refractive index of the edge member is less than a first threshold value. In the above - mentioned splicing screen, a seam elimination structure is filled in the first seam between two adjacent sub - splicing screens, and the absolute value of the difference between the refractive index of the seam elimination structure and the refractive index of the edge member is less than a first threshold value, so that the overall optical path refractive index of the outgoing light passing through the first seam of two adjacent sub - splicing screens is the same, reducing light deviation and scattering. Furthermore, the seam is visually eliminated at a lower cost to make the image complete.

[0005] However, this structure cannot solve the problem of integrated black of the existing splicing screen. Utility Model Content

[0006] Based on this, in view of the above - mentioned technical problems, it is necessary to provide an integrated black component for an LCD and TFT splicing screen. The integrated black component for the LCD and TFT splicing screen includes an LCD screen body and a TFT screen body. The LCD screen body includes a first lower polarizing layer. A lower glass substrate is provided on the upper surface of the first lower polarizing layer. An upper glass substrate is provided on the upper surface of the lower glass substrate. A first surface ITO layer is provided on the upper surface of the upper glass substrate. A first upper polarizing layer is provided on the upper surface of the first surface ITO layer. The TFT screen body includes a second lower polarizing layer. An array substrate is provided on the upper surface of the second lower polarizing layer. A color filter substrate is provided on the upper surface of the array substrate. A second surface ITO layer is provided on the upper surface of the color filter substrate. A second upper polarizing layer is provided on the upper surface of the second surface ITO layer. Among them, the difference in reflectivity between the first upper polarizing layer and the second upper polarizing layer is ≤0.5. Since the difference in reflectivity between the first upper polarizing layer and the second upper polarizing layer is ≤0.5, the reflectivities of the LCD screen body and the TFT screen body are close, and the light reflected under the same light source is closer, so an integrated black effect is obtained. By adjusting the parameters of the manufacturing process, the integrated black effect of the LCD and TFT splicing screen can be easily achieved, with low cost and good effect.

[0007] In order to solve the above - mentioned technical problems, the present utility model adopts the following technical solutions:

[0008] An integrated black component for an LCD and TFT splicing screen, characterized in that the integrated black component for the LCD and TFT splicing screen includes an LCD screen body and a TFT screen body,

[0009] The described LCD screen body includes a first lower polarizing layer. On the upper surface of the first lower polarizing layer, a lower glass substrate is provided. On the upper surface of the lower glass substrate, an upper glass substrate is provided. On the upper surface of the upper glass substrate, a first surface ITO layer is provided. On the upper surface of the first surface ITO layer, a first upper polarizing layer is provided.

[0010] The described TFT screen body includes a second lower polarizing layer. On the upper surface of the second lower polarizing layer, an array substrate is provided. On the upper surface of the array substrate, a color filter substrate is provided. On the upper surface of the color filter substrate, a second surface ITO layer is provided. On the upper surface of the second surface ITO layer, a second upper polarizing layer is provided.

[0011] Wherein, the difference in reflectivity between the first upper polarizing layer and the second upper polarizing layer is ≤ 0.5.

[0012] As a preferred embodiment of the integrated black component of the LCD and TFT splicing screen provided by the present utility model, the reflectivity of the first surface ITO layer is between 5.3% and 5.8%.

[0013] As a preferred embodiment of the integrated black component of the LCD and TFT splicing screen provided by the present utility model, the reflectivity of the first surface ITO layer is 5.6%.

[0014] As a preferred embodiment of the integrated black component of the LCD and TFT splicing screen provided by the present utility model, the difference in reflectivity between the first surface ITO layer and the second surface ITO layer is ≤ 0.5.

[0015] As a preferred embodiment of the integrated black component of the LCD and TFT splicing screen provided by the present utility model, the reflectivity of the second surface ITO layer is between 5.3% and 5.8%.

[0016] As a preferred embodiment of the integrated black component of the LCD and TFT splicing screen provided by the present utility model, the reflectivity of the second surface ITO layer is 5.6%.

[0017] As a preferred embodiment of the integrated black component of the LCD and TFT splicing screen provided by the present utility model, the difference in reflectivity between the first surface ITO layer and the second surface ITO layer is ≤ 0.5.

[0018] As a preferred embodiment of the integrated black component of the LCD and TFT splicing screen provided by the present utility model, the thicknesses of the LCD screen body and the TFT screen body are the same.

[0019] As a preferred embodiment of the integrated black component of the LCD and TFT splicing screen provided by the present utility model, the widths of the LCD screen body and the TFT screen body are the same.

[0020] As a preferred embodiment of the integrated black component of the LCD and TFT splicing screen provided by the present utility model, a first FPC connection board is provided on the LCD screen body, and a second FPC connection board is provided on the TFT screen body.

[0021] Compared with the prior art, the present utility model has the following beneficial effects:

[0022] The present utility model provides an integrated black component of an LCD and a TFT splicing screen. Since the reflectivity difference between the first upper polarizing layer and the second upper polarizing layer ≤ 0.5, and the reflectivities of the LCD screen body and the TFT screen body are close, the light reflected under the same light source is closer, thus obtaining an integrated black effect. Through the adjustment of the process parameters, the integrated black effect of the LCD and TFT splicing screen can be easily achieved, with low cost and good effect.

[0023] In addition, the reflectivity of the first surface ITO layer can be made between 5.3% and 5.8%. The reflectivity of the second surface ITO layer is between 5.3% and 5.8%. Preferably, the reflectivity difference between the first surface ITO layer and the second surface ITO layer ≤ 0.5.

[0024] In addition, the thicknesses of the LCD screen body and the TFT screen body can be made the same. The widths of the LCD screen body and the TFT screen body are the same. A first FPC connection board is provided on the LCD screen body, and a second FPC connection board is provided on the TFT screen body. Since the thicknesses and widths of the LCD screen body and the TFT screen body are the same, better shape consistency can be obtained, thereby obtaining a better integrated black effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the solutions in the present utility model, the following will briefly introduce the drawings required for use in the description of the embodiments. Obviously, the following drawings are some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0026] Figure 1 It is a schematic stacking structure diagram of the LCD screen body of the integrated black component of the LCD and TFT splicing screen of the present utility model;

[0027] Figure 2 It is a schematic stacking structure diagram of the TFT screen body of the integrated black component of the LCD and TFT splicing screen of the present utility model;

[0028] Figure 3 Splicing schematic diagram of the integrated black component of the LCD and TFT splicing screen of the present utility model;

[0029] Explanation of the markings in the figure is as follows: 1. LCD screen body; 10. First FPC connection board; 11. First lower polarizing layer; 12. Lower glass substrate; 13. Upper glass substrate; 14. First surface ITO layer; 15. First upper polarizing layer; 2. TFT screen body; 20. Second FPC connection board; 21. Second lower polarizing layer; 22. Array substrate; 23. Color filter substrate; 24. Second surface ITO layer; 25. Second upper polarizing layer. Specific embodiments

[0030] In order to enable those skilled in the art to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying 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 making creative efforts shall fall within the protection scope of the present utility model.

[0031] As described in the background art, for display screens in the industry, the LCD screen and the TFT screen are often spliced to obtain a spliced screen. Due to the different characteristics of the LCD screen and the TFT screen, there will be obvious color differences and poor integration when they are paired and spliced, and it is also difficult to obtain the effect of integrated black.

[0032] To solve this technical problem, the present utility model provides an integrated black component for an LCD and TFT splicing screen, which includes an LCD screen body 1 and a TFT screen body 2. The LCD screen body 1 includes a first lower polarizing layer 11. A lower glass substrate 12 is provided on the upper surface of the first lower polarizing layer 11. An upper glass substrate 13 is provided on the upper surface of the lower glass substrate 12. A first surface ITO layer 14 is provided on the upper surface of the upper glass substrate 13. A first upper polarizing layer 15 is provided on the upper surface of the first surface ITO layer 14. The TFT screen body 2 includes a second lower polarizing layer 21. An array substrate 22 is provided on the upper surface of the second lower polarizing layer 21. A color filter substrate 23 is provided on the upper surface of the array substrate 22. A second surface ITO layer 24 is provided on the upper surface of the color filter substrate 23. A second upper polarizing layer 25 is provided on the upper surface of the second surface ITO layer 24. The difference in reflectivity between the first upper polarizing layer 15 and the second upper polarizing layer 25 is ≤ 0.5.

[0033] Through the above structural design, since the reflectivity difference between the first upper polarizing layer 15 and the second upper polarizing layer 25 is ≤ 0.5, the reflectivities of the LCD screen body 1 and the TFT screen body 2 are close, and the light reflected under the same light source is closer, thus obtaining an integrated black effect. By adjusting the parameters of the manufacturing process, the integrated black effect of the LCD and TFT splicing screens can be easily achieved, with low cost and good effect.

[0034] In order to enable those skilled in the art of the present technology to better understand the solution of the present utility model, the technical solutions in the embodiments of the present utility model will be described in detail below in conjunction with the drawings, so that the advantages and features of the present utility model can be more easily understood by those skilled in the art, thereby making a clearer and more definite definition of the protection scope of the present utility model.

[0035] It should be noted that, without conflict, the embodiments in the present utility model and the features and technical solutions in the embodiments can be combined with each other.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings. Therefore, once an item is defined in one drawing, it does not need to be further defined and explained in subsequent drawings.

[0037] Embodiment 1

[0038] As Figure 1 and Figure 2 shown, the integrated black component of the LCD and TFT splicing screens includes an LCD screen body 1 and a TFT screen body 2.

[0039] The LCD screen body 1 includes a first lower polarizing layer 11. An upper glass substrate 12 is provided on the upper surface of the first lower polarizing layer 11. An upper glass substrate 13 is provided on the upper surface of the lower glass substrate 12. A first surface ITO layer 14 is provided on the upper surface of the upper glass substrate 13. A first upper polarizing layer 15 is provided on the upper surface of the first surface ITO layer 14.

[0040] The TFT screen body 2 includes a second lower polarizing layer 21. An array substrate 22 is provided on the upper surface of the second lower polarizing layer 21. A color filter substrate 23 is provided on the upper surface of the array substrate 22. A second surface ITO layer 24 is provided on the upper surface of the color filter substrate 23. A second upper polarizing layer 25 is provided on the upper surface of the second surface ITO layer 24.

[0041] It should be noted that the reflectivity difference between the first upper polarizing layer 15 and the second upper polarizing layer 25 is ≤ 0.5.

[0042] In addition, the reflectivity of the first surface ITO layer 14 is between 5.3% and 5.8%. Preferably, the reflectivity of the first surface ITO layer 14 is 5.6%.

[0043] The working mode of this embodiment will be described below.

[0044] Since the reflectivity difference between the first upper polarizing layer 15 and the second upper polarizing layer 25 is ≤ 0.5, and the reflectivities of the LCD screen body 1 and the TFT screen body 2 are close, the light reflected under the same light source is closer, so an integrated black effect is obtained. By adjusting the parameters of the manufacturing process, the integrated black effect of the LCD and TFT splicing screens can be easily achieved, with low cost and good effect.

[0045] Embodiment 2

[0046] The integrated black component of the LCD and TFT splicing screens provided in Embodiment 1 is further optimized. Specifically, the reflectivity of the first surface ITO layer 14 is between 5.3% and 5.8%. Preferably, the reflectivity of the first surface ITO layer 14 is 5.6%.

[0047] The reflectivity of the second surface ITO layer 24 is between 5.3% and 5.8%. Preferably, the reflectivity of the second surface ITO layer 24 is 5.6%.

[0048] In addition, the reflectivity difference between the first surface ITO layer 14 and the second surface ITO layer 24 is ≤ 0.5.

[0049] The working mode of this embodiment will be described below.

[0050] Since the reflectivity difference between the first surface ITO layer 14 and the second surface ITO layer 24 is ≤ 0.5, on the basis of Embodiment 1, the difference in the reflectivities of the LCD screen body 1 and the TFT screen body 2 can be further reduced, and the light reflected under the same light source is closer, so a better integrated black effect is obtained.

[0051] Embodiment 3

[0052] The integrated black component of the LCD and TFT splicing screens provided in Embodiment 1 or 2 is further optimized. Specifically, the LCD screen body 1 and the TFT screen body 2 have the same thickness.

[0053] It should be noted that the LCD screen body 1 and the TFT screen body 2 have the same width.

[0054] In addition, a first FPC connecting plate 10 is provided on the LCD screen body 1, and a second FPC connecting plate 20 is provided on the TFT screen body 2.

[0055] The working mode of this embodiment will be described below.

[0056] Since the LCD screen body 1 and the TFT screen body 2 have the same thickness and the same width, better shape consistency can be obtained, and thus a better integrated black effect can be obtained.

[0057] The terms "coupled" and "coupling" involved in the embodiments of the present application should be understood in a broad sense. For example, it may refer to a direct physical connection, or an indirect connection implemented through electronic devices, such as a connection implemented through resistors, inductors, capacitors or other electronic devices.

[0058] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected to", "fixed" and the like should 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 may be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly defined. 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.

[0059] Obviously, the above-described embodiments 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 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 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, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements for 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 shall be similarly within the scope of patent protection of the present application.

Claims

1. An integrated black component of LCD and TFT splicing screen, characterized in that: The LCD and TFT spliced ​​screen integrated black component comprises an LCD screen body (1) and a TFT screen body (2); the LCD screen body (1) comprises a first lower polarizing layer (11); a lower glass substrate (12) is provided on the upper surface of the first lower polarizing layer (11); an upper glass substrate (13) is provided on the upper surface of the lower glass substrate (12); a first surface ITO layer (14) is provided on the upper surface of the upper glass substrate (13); and a first upper polarizing layer (14) is provided on the upper surface of the first surface ITO layer (14). 5), the TFT screen body (2) comprises a second lower polarizing layer (21), an array substrate (22) is provided on the upper surface of the second lower polarizing layer (21), a color film substrate (23) is provided on the upper surface of the array substrate (22), a second surface ITO layer (24) is provided on the upper surface of the color film substrate (23), and a second upper polarizing layer (25) is provided on the upper surface of the second surface ITO layer (24), wherein the reflectivity difference between the first upper polarizing layer (15) and the second upper polarizing layer (25) is ≤0.

5.

2. The LCD and TFT splicing screen integrated black component according to claim 1, characterized in that: The reflectivity of the first surface ITO layer (14) is between 5.3% and 5.8%.

3. The LCD and TFT splicing screen integrated black component according to claim 2, characterized in that: The reflectivity of the first surface ITO layer (14) is 5.6%.

4. The LCD and TFT splicing screen integrated black component according to claim 3, characterized in that: The reflectivity difference between the first surface ITO layer (14) and the second surface ITO layer (24) is ≤0.

5.

5. The LCD and TFT splicing screen integrated black component according to claim 1, characterized in that: The reflectivity of the second surface ITO layer (24) is between 5.3% and 5.8%.

6. The LCD and TFT splicing screen integrated black component according to claim 5, characterized in that: The reflectivity of the second surface ITO layer (24) is 5.6%.

7. The LCD and TFT splicing screen integrated black component according to claim 6, characterized in that: The reflectivity difference between the first surface ITO layer (14) and the second surface ITO layer (24) is ≤0.

5.

8. The LCD and TFT splicing screen integrated black component according to claim 1, characterized in that: The thickness of the LCD screen body (1) and the TFT screen body (2) are consistent.

9. The LCD and TFT splicing screen integrated black component according to claim 1, characterized in that: The LCD screen body (1) and the TFT screen body (2) have the same width.

10. The LCD and TFT splicing screen integrated black component according to claim 1, characterized in that: The LCD screen body (1) is provided with a first FPC connecting board (10), and the TFT screen body (2) is provided with a second FPC connecting board (20).

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