A display screen with improved antistatic properties of LTPS backplane

Abstract

This invention discloses a display screen with improved antistatic capability of LTPS backplanes. The display screen includes a glass substrate with multiple channels. Each channel has a light-shielding layer, which is a conductor. Adjacent light-shielding layers are connected by wires, and multiple light-shielding layers are connected in series. Multiple wires are sequentially connected to form a mesh structure, creating a Faraday cage. By connecting the original light-shielding layers in series, the original performance of the light-shielding layers is maintained while the mesh structure is linked together. Referring to the Faraday cage effect, this prevents external electrostatic fields from penetrating the mesh, thereby improving the antistatic capability of the LTPS backplane display screen.

Description

Technical Field

[0001] This invention relates to the field of display technology, and more specifically, to a display screen with improved antistatic capability of LTPS backplane. Background Technology

[0002] The current mainstream LTPS and LTPO technologies increasingly incorporate light-shielding layers for several reasons: 1. When the channel of a thin-film transistor is exposed to light, photocarriers are generated, leading to an increase in leakage current. The addition of a light-shielding layer can block light from directly hitting the channel and avoid crosstalk, flickering, and other problems caused by photoleakage. 2. For LTPO, the effect of light also exists. The light-shielding layer can avoid voltage fluctuations caused by light, helping LTPO technology achieve low power consumption without sacrificing display performance.

[0003] Currently, the commonly used light-shielding layer design patterns are usually independent schemes that only block the channels. When the glass is driven on the roller, the charge accumulated when the glass and the rubber roller rub against each other is discharged on the glass substrate, causing the thin film transistor to be damaged and forming dense bright spots that run through the transmission direction. In this process, the light-shielding layer does not play any positive role, that is, the light-shielding layer in the traditional structure does not have anti-static ability. Summary of the Invention

[0004] The technical problem to be solved by this invention is how to improve the antistatic capability of LTPS backplane displays.

[0005] The technical problem to be solved by the present invention is achieved through the following technical solution: To address the aforementioned technical problems, the present invention provides a display screen with improved antistatic capability of LTPS backplane, comprising a glass substrate, wherein a plurality of channels are provided on the glass substrate, and a light-shielding layer is provided on each channel. The light-shielding layer is a conductor, and adjacent light-shielding layers are connected by wires. The plurality of light-shielding layers are connected in series, and the plurality of wires are sequentially connected to form a mesh structure to form a Faraday cage.

[0006] In a preferred embodiment of the display screen with improved antistatic capability of LTPS backplane provided by the present invention, the glass substrate is an array substrate.

[0007] In a preferred embodiment of the display screen with improved antistatic capability of LTPS backplane provided by the present invention, the material of the light-shielding layer is metal MO, and the material of the conductor is metal MO.

[0008] As a preferred embodiment of the display screen with improved antistatic capability of LTPS backplane provided by the present invention, the material of the light-shielding layer is metal MO, and the material of the conductor is ITO (indium tin oxide).

[0009] In a preferred embodiment of the display screen with improved antistatic capability of LTPS backplane provided by the present invention, the material of the light-shielding layer is ITO (indium tin oxide), and the material of the conductor is ITO (indium tin oxide).

[0010] As a preferred embodiment of the display screen with improved antistatic capability of LTPS backplane provided by the present invention, the material of the light-shielding layer is AZO (aluminum zinc oxide), GZO (gallium zinc oxide) or IGZO (indium gallium zinc oxide).

[0011] As a preferred embodiment of the display screen with improved antistatic capability of LTPS backplane provided by the present invention, a color filter substrate is disposed above the array substrate, the array substrate is longer than the color filter substrate and extends outward to form a step, and a driver IC and an FPC are bonded to the upper surface of the array substrate located at the step.

[0012] As a preferred embodiment of the display screen with improved antistatic capability of LTPS backplane provided by the present invention, the FPC is provided with a QR code laser area, the upper surface of the FPC located on the QR code laser area is provided with a first ink layer and a second ink layer provided on the first ink layer, the second ink layer is formed with a QR code by laser, and the first ink layer and the second ink layer are different colors.

[0013] In a preferred embodiment of the display screen with improved antistatic capability of LTPS backplane provided by the present invention, the first ink layer is a black ink layer and the second ink layer is a white ink layer.

[0014] In a preferred embodiment of the display screen with improved antistatic capability of LTPS backplane provided by the present invention, the thickness of the first ink layer is 30μm to 40μm, and the thickness of the second ink layer is 10μm to 20μm.

[0015] The present invention has the following beneficial effects: The original light-shielding layers are connected in series to form a mesh structure while maintaining their original performance. This mesh structure is designed to block external electrostatic fields from penetrating the interior of the mesh, thereby improving the antistatic capability of the LTPS back panel display. Attached Figure Description

[0016] To more clearly illustrate the solutions in 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 from these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of a display screen for improving the antistatic capability of an LTPS backplane, provided by the present invention.

[0018] Figure 2 This is a schematic diagram of the structure of Example 2.

[0019] Figure 3 for Figure 2 A schematic diagram of the structure of the FPC in China.

[0020] Explanation of icon numbers: 1. Glass substrate; 2. Light-shielding layer; 3. Conductor; 4. Color filter substrate; 5. FPC; 6. First ink layer; 7. Second ink layer. Detailed Implementation

[0021] 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 of the present invention. 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 scope of protection of the present invention.

[0022] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this invention and simplifying the description, and are not intended to indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0023] Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first," "second," or "third" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0024] The present invention provides a display screen with improved antistatic capability of LTPS backplane, comprising a glass substrate, wherein a plurality of channels are provided on the glass substrate, and a light-shielding layer is provided on each channel. The light-shielding layer is a conductor, and adjacent light-shielding layers are connected by wires. The plurality of light-shielding layers are connected in series, and the plurality of wires are sequentially connected to form a mesh structure to form a Faraday cage.

[0025] The original light-shielding layers are connected in series to form a mesh structure while maintaining their original performance. This mesh structure is designed to block external electrostatic fields from penetrating the interior of the mesh, thereby improving the antistatic capability of the LTPS back panel display.

[0026] 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 with reference to the accompanying drawings. The present invention will be described in detail below with reference to the accompanying drawings and embodiments, examples of which are shown in the drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0027] Example 1, please refer to Figure 1 This invention provides a display screen for improving the antistatic capability of LTPS backplanes. The screen includes a glass substrate 1 with multiple channels. Each channel has a light-shielding layer 2, which is a conductor. Adjacent light-shielding layers 2 are connected by wires 3. Multiple light-shielding layers 2 are connected in series, and multiple wires 3 are sequentially connected to form a mesh structure, creating a Faraday cage. By connecting the original light-shielding layers 2 in series, the original performance of the light-shielding layers 2 is maintained while their structures are linked together to form a mesh structure. Referring to the Faraday cage effect, this prevents external electrostatic fields from penetrating the mesh, thereby improving the antistatic capability of the LTPS backplane display screen.

[0028] Furthermore, the glass substrate 1 is an array substrate.

[0029] Furthermore, the material of the light-shielding layer 2 is metal MO, and the material of the conductive wire 3 is also metal MO. Of course, in other embodiments, the material of the light-shielding layer 2 can also be metal MO, and the material of the conductive wire 3 can be ITO (indium tin oxide). Alternatively, the material of the light-shielding layer 2 can be ITO (indium tin oxide), and the material of the conductive wire 3 can be ITO (indium tin oxide).

[0030] Furthermore, materials with similar properties, such as AZO (aluminum zinc oxide), GZO (gallium zinc oxide), or IGZO (indium gallium zinc oxide), can also be used for the light-shielding layer 2.

[0031] Example 2, please refer to Figure 2 and Figure 3 As a further optimization of Embodiment 1, in this embodiment, a color filter substrate 4 is disposed above the array substrate. The array substrate is longer than the color filter substrate 4 and extends outward to form a step. A driver IC and an FPC5 are bonded to the upper surface of the array substrate located at the step.

[0032] Furthermore, the FPC5 also features a QR code laser area. On the upper surface of the FPC5 within this area, there is a first ink layer 6 and a second ink layer 7. The second ink layer 7 is laser-etched with a QR code. The first ink layer 6 and the second ink layer 7 are different colors. Because of the two ink layers, the second ink layer 7 is laser-etched away to expose the underlying first ink layer 6. The laser-etched areas display different colors, resulting in a QR code with good contrast, easy scanning, and preventing damage or loss, thus significantly reducing labor costs.

[0033] Furthermore, the first ink layer 6 is a black ink layer, and the second ink layer 7 is a white ink layer. The contrast between the black ink layer and the white ink layer is better, making it easier to scan the code.

[0034] Furthermore, the thickness of the first ink layer 6 is 30μm to 40μm. The thickness of the second ink layer 7 is 10μm to 20μm. This thickness is just enough for a commonly used ultraviolet laser to penetrate, and there is no dust around it after laser lithography, which has the advantages of high cycle time and efficiency. The reason why the thickness of the lower first ink layer 6 is thicker than the thickness of the upper second ink layer 7 is to avoid laser power energy fluctuations and prevent the first ink layer 6 from being penetrated by the laser and damaging the internal layers of the FPC5.

[0035] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," 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 invention according to the specific circumstances.

[0036] Obviously, the embodiments described above are only some embodiments of this application, not all embodiments. The accompanying drawings show preferred embodiments of this application, but do not limit the patent scope of this application. This application 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 application. Although this 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 make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this application's specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the scope of patent protection of this application.

Claims

1. A display screen with improved antistatic capability of LTPS backplane, characterized in that, It includes a glass substrate with multiple channels, each channel having a light-shielding layer. The light-shielding layer is a conductor, and adjacent light-shielding layers are connected by wires. Multiple light-shielding layers are connected in series, and multiple wires are sequentially connected to form a mesh structure to form a Faraday cage.

2. The display screen with improved antistatic capability of LTPS backplane according to claim 1, characterized in that, The glass substrate is an array substrate.

3. The display screen with improved antistatic capability of LTPS backplane according to claim 1, characterized in that, The material of the light-shielding layer is metal MO, and the material of the wire is metal MO.

4. The display screen with improved antistatic capability of LTPS backplane according to claim 1, characterized in that, The material of the light-shielding layer is metal MO, and the material of the wire is ITO (indium tin oxide).

5. The display screen with improved antistatic capability of LTPS backplane according to claim 1, characterized in that, The material of the light-shielding layer is ITO (indium tin oxide), and the material of the conductor is ITO (indium tin oxide).

6. The display screen with improved antistatic capability of LTPS backplane according to claim 1, characterized in that, The material of the light-shielding layer is AZO (aluminum zinc oxide), GZO (gallium zinc oxide) or IGZO (indium gallium zinc oxide).

7. The display screen with improved antistatic capability of LTPS backplane according to claim 2, characterized in that, A color filter substrate is disposed above the array substrate. The array substrate is longer than the color filter substrate and extends outward to form a step. A driver IC and an FPC are bonded to the upper surface of the array substrate located at the step.

8. The display screen with improved antistatic capability of LTPS backplane according to claim 7, characterized in that, The FPC is provided with a QR code laser area. The upper surface of the FPC located on the QR code laser area is provided with a first ink layer and a second ink layer disposed on the first ink layer. The second ink layer is formed with a QR code by laser. The first ink layer and the second ink layer are different colors.

9. The display screen with improved antistatic capability of LTPS backplane according to claim 8, characterized in that, The first ink layer is a black ink layer, and the second ink layer is a white ink layer.

10. The display screen with improved antistatic capability of LTPS backplane according to claim 9, characterized in that, The thickness of the first ink layer is 30μm to 40μm, and the thickness of the second ink layer is 10μm to 20μm.

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