A pressure-resistant TFT display screen structure

Abstract

The application belongs to the technical field of display screens and relates to a pressure-resistant TFT display screen structure, which comprises upper glass, lower glass, a black matrix and a color filter, the black matrix and the color filter are arranged at the bottom of the upper glass, liquid crystal is filled between the upper glass and the lower glass, a TFT electrical circuit is arranged in the gap between the upper glass and the lower glass, a support column in the shape of a trapezoid is arranged above the TFT electrical circuit, and the support column supports the upper glass and the lower glass. The technical scheme provided by the application can support the TFT electrical circuit of each display point through the support column in the shape of a trapezoid, thereby enhancing the pressure resistance of the upper and lower glasses, avoiding the problem that the upper and lower glasses are in contact due to external pressure during a thinning and polishing process, avoiding problems such as uneven display and yellow spots of TFT glass, and improving the display effect of TFT glass.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically, to a pressure-resistant TFT display structure. Background Technology

[0002] Because of their relatively low cost, TFT display modules are widely used in consumer products such as smart bracelets, smartwatches, smart home devices, and e-cigarettes. TFT LCD glass achieves the desired display effect by controlling the electric field between the upper and lower substrates and changing the arrangement of the liquid crystal materials. The spacer between the two substrates plays a role in controlling the thickness and uniformity between the substrates, supporting the upper and lower glass and preventing them from touching.

[0003] Due to the spatial requirements of smartwatches, TFT displays are thinned during use. This involves thinning the TFT display first, followed by polishing for repair. Polishing is a physical grinding process that applies pressure to the TFT display, thus posing a significant challenge to its pressure resistance. As the market continues to demand higher resolution and thinner designs for smartwatch TFT displays, the pressure resistance of these products is deteriorating. During the polishing process, the TFT display is subjected to external pressure and deformation. Sometimes, after deformation, the liquid crystal cell of the TFT display cannot return to its original position, resulting in display abnormalities such as unevenness and yellow spots. Utility Model Content

[0004] The technical problem to be solved by the embodiments of this application is that during the polishing process of a TFT display screen, it is subjected to external force and deformation. Sometimes, after the liquid crystal cell of the TFT display screen is deformed, it cannot return to its original position, which leads to display abnormalities such as uneven display and yellow spots on the TFT display screen.

[0005] To address the aforementioned technical problems, this application provides a pressure-resistant TFT display screen structure, employing the following technical solution:

[0006] A pressure-resistant TFT display screen structure, comprising:

[0007] Upper glass, lower glass, black matrix and color filter;

[0008] Both the black matrix and the color filter are located at the bottom of the upper glass.

[0009] The space between the upper and lower glass is filled with liquid crystal, and a TFT electrical circuit is provided in the gap between the upper and lower glass. A trapezoidal support column is provided above the TFT electrical circuit, and the support column supports the upper and lower glass.

[0010] Furthermore, the support column is located below the black matrix.

[0011] Furthermore, the support column is specifically made of acrylate material.

[0012] Furthermore, the support pillar is formed through photoresist coating, exposure, and development processes.

[0013] Furthermore, a common electrode is provided at the bottom of the upper glass, and an alignment film is provided at the bottom of the common electrode;

[0014] A display electrode is provided on the top of the lower glass, liquid crystal is filled between the alignment film and the display electrode, and multiple spacers are provided between the display electrode and the alignment film. A sealant is provided at the edge between the upper glass and the lower glass.

[0015] Furthermore, multiple support columns are provided, and the support columns are supported between the alignment film and the lower glass. The support columns support the upper glass and the lower glass by supporting the alignment film and the lower glass.

[0016] Furthermore, the Spacer is a spherical spacer with a particle size of 3.5 μm ± 0.1 μm.

[0017] Furthermore, a protective layer is provided between the color filter and the common electrode.

[0018] Compared with the prior art, the embodiments of this application have the following main advantages:

[0019] This invention uses trapezoidal support columns to support the TFT electrical circuits of each display point, thereby enhancing the pressure resistance of the upper and lower glass and preventing the upper and lower glass from contacting each other due to external pressure during the thinning and polishing process. This also avoids problems such as uneven display and yellow spots on the TFT glass, thus improving the display effect of the TFT glass. Attached Figure Description

[0020] To more clearly illustrate the solution of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic diagram of the internal structure of this utility model;

[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle.

[0023] Reference numerals: 1. Upper glass; 2. Lower glass; 3. Black matrix; 4. Color filter; 5. Common electrode; 6. Alignment film; 7. Liquid crystal; 8. Display electrode; 9. Sealant; 10. TFT electrical circuit; 11. Support pillar; 12. Spacer. Detailed Implementation

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs; the terminology used herein in the specification of the application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application; the terms "comprising" and "having," and any variations thereof, in the specification, claims, and foregoing drawings of this application are intended to cover non-exclusive inclusion. The terms "first," "second," etc., in the specification, claims, or foregoing drawings of this application are used to distinguish different objects, not to describe a particular order.

[0025] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0026] To enable those skilled in the art to better understand the present invention, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the protection scope of the present invention.

[0027] See Figure 1 This application provides a pressure-resistant TFT display screen structure.

[0028] include:

[0029] Upper glass 1, lower glass 2, black matrix 3 and color filter 4;

[0030] Both the black matrix 3 and the color filter 4 are located at the bottom of the upper glass 1;

[0031] Liquid crystal 7 is filled between the upper glass 1 and the lower glass 2, and a TFT electrical circuit 10 is provided in the gap between the upper glass 1 and the lower glass 2. A trapezoidal support column 11 is provided above the TFT electrical circuit 10. The support column 11 supports the upper glass 1 and the lower glass 2, and the trapezoidal support column 11 is provided on the TFT electrical circuit 10 of each display point.

[0032] In the above structure, during the thinning and polishing process, the trapezoidal support column 11 supports the TFT electrical circuit 10 of each display point, thereby enhancing the pressure resistance of the upper and lower glass and preventing the upper and lower glass from contacting each other due to external pressure during the thinning and polishing process. This avoids problems such as uneven display and yellow spots on the TFT glass and improves the display effect of the TFT glass.

[0033] See Figure 1 The support column 11 is located below the black matrix, and the support column 11 is specifically made of acrylic material.

[0034] The aforementioned material possesses excellent elastic recovery rate, thermal stability, and mechanical properties. Therefore, after the thinning and polishing process, the properties of this material allow the upper and lower glass to quickly return to their original shape, preventing external pressure from causing the upper and lower glass to come into contact with each other.

[0035] The support pillar 11 is formed by photoresist coating, exposure and development processes.

[0036] The specific purpose of the above process is to uniformly coat a layer of photoresist onto a substrate such as glass or silicon wafer as a mask for subsequent pattern transfer. Then, by irradiating with ultraviolet light, a chemical reaction occurs in specific areas of the photoresist, forming a latent image. This latent image dissolves the photoresist in exposed or unexposed areas, forming the desired pattern. This process forms the support pillars 11, which support the upper and lower glass plates. It should be noted that this process is a conventional existing process and will not be described in detail here.

[0037] See Figure 1 A common electrode 5 is provided at the bottom of the upper glass 1, and an alignment film 6 is provided at the bottom of the common electrode 5.

[0038] A display electrode 8 is provided on the top of the lower glass 2. Liquid crystal 7 is filled between the alignment film 6 and the display electrode 8. Multiple spacers 12 are provided between the display electrode 8 and the alignment film 6 to form a microscopic support structure for the liquid crystal display screen. A sealant 9 is provided at the edge between the upper glass 1 and the lower glass 2.

[0039] In the above structure, the common electrode 5 is used to form an electric field with the pixel electrode to drive the liquid crystal molecules to deflect or adjust the OLED brightness. The alignment film 6 can directly determine the initial alignment direction and orientation uniformity of the liquid crystal molecules, affecting the contrast, response speed and viewing angle characteristics of the display. The liquid crystal 7 is a special material state between liquid and crystal, with fluidity and optical anisotropy. The display electrode 8 is the core conductive structure of the liquid crystal / OLED display, responsible for the establishment of the electric field and current transmission. Its design directly affects the optical performance, power consumption and reliability of the display. At the same time, the sealant 9 improves the sealing between the upper glass 1 and the lower glass 2 to ensure normal operation inside.

[0040] See Figure 1 Multiple support columns 11 are provided, and the support columns 11 are supported between the alignment film 6 and the lower glass 2. The support columns 11 support the upper glass 1 and the lower glass 2 by supporting the alignment film 6 and the lower glass 2.

[0041] The above structure, with multiple support pillars 11, supports the upper and lower glass during thinning and polishing, thus preventing uneven display and yellow spots in the TFT glass and improving the display effect of the TFT glass.

[0042] See Figure 1 Spacer12 is a spherical spacer with a particle size of 3.5 μm ± 0.1 μm.

[0043] The above structure, because Spacer12 is a spherical spacer, has a low formation cost, simple process, and is easy to form, thus saving production costs.

[0044] See Figure 1 A protective layer is provided between the color filter 4 and the common electrode 5.

[0045] The above structure can flatten the surface of the color filter 4 and prevent liquid crystal 7 from becoming contaminated.

[0046] Working principle: After the electrical circuit of the substrate is fabricated between the upper and lower glass, a trapezoidal support column, namely support column 11, is formed on the electrical circuit through a series of photoresist coating, exposure and development processes. The trapezoidal support column is set on the TFT electrical circuit 10 of each display point as a support column, thereby enhancing the compressive strength of the upper and lower glass and avoiding the problem of the upper and lower glass coming into contact with each other due to external pressure during the thinning and polishing process. This also avoids problems such as uneven display and yellow spots in the TFT glass, and improves the display effect of the TFT glass.

[0047] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a connection that allows communication between them; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.

[0048] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model 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 make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. A pressure-resistant TFT display screen structure, characterized in that, include: Upper glass (1), lower glass (2), black matrix (3) and color filter (4); The black matrix (3) and the color filter (4) are both located at the bottom of the upper glass (1); The space between the upper glass (1) and the lower glass (2) is filled with liquid crystal (7), and a TFT electrical circuit (10) is provided in the gap between the upper glass (1) and the lower glass (2). A trapezoidal support column (11) is provided above the TFT electrical circuit (10), and the support column (11) supports the upper glass (1) and the lower glass (2).

2. The pressure-resistant TFT display screen structure according to claim 1, characterized in that, The support column (11) is located below the black matrix (3).

3. The pressure-resistant TFT display screen structure according to claim 1, characterized in that, The support column (11) is specifically made of acrylate material.

4. The pressure-resistant TFT display screen structure according to claim 1, characterized in that, The support column (11) is formed by photoresist coating, exposure and development processes.

5. The pressure-resistant TFT display screen structure according to claim 1, characterized in that, A common electrode (5) is provided at the bottom of the upper glass (1), and an alignment film (6) is provided at the bottom of the common electrode (5).

6. The pressure-resistant TFT display screen structure according to claim 5, characterized in that, The top of the lower glass (2) is provided with a display electrode (8), the space between the alignment film (6) and the display electrode (8) is filled with liquid crystal (7), and a plurality of spacers (12) are provided between the display electrode (8) and the alignment film (6). The edge between the upper glass (1) and the lower glass (2) is provided with sealant (9).

7. The pressure-resistant TFT display screen structure according to claim 5, characterized in that, Multiple support columns (11) are provided, and the support columns (11) are supported between the alignment film (6) and the lower glass (2). The support columns (11) support the upper glass (1) and the lower glass (2) by supporting the alignment film (6) and the lower glass (2).

8. The pressure-resistant TFT display screen structure according to claim 6, characterized in that, The Spacer (12) is a spherical spacer with a particle size of 3.5 μm ± 0.1 μm.

9. The pressure-resistant TFT display screen structure according to claim 6, characterized in that, A protective layer is provided between the color filter (4) and the common electrode (5).

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