Liquid crystal display screen capable of preventing backlight source from influencing driving IC (integrated circuit)

Abstract

The utility model discloses a liquid crystal display screen capable of preventing a backlight source from influencing a driving IC (integrated circuit), which comprises a backlight module and a display module arranged above the backlight module, the backlight source is arranged in the backlight module, the display module comprises a lower polaroid, a lower substrate, an upper substrate and an upper polaroid which are sequentially overlapped from bottom to top, the lower substrate is longer than the upper substrate and extends outwards to form a step, a driving IC (integrated circuit) and an FPC (flexible printed circuit) are bound on the upper surface of the lower substrate positioned at the step, and black shading paper is adhered on the lower surface of the lower substrate positioned below the driving IC. Due to the fact that the black shading paper is pasted on the lower surface of the lower substrate below the driving IC, light emitted by the backlight source is prevented from acting on the driving IC, performance change of the driving IC is avoided, the display effect is improved, abnormal display is prevented, and the competitiveness of products is improved.

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 which can prevent a backlight source from influencing a driving IC. Background Art

[0002] During the test of the LCD module project, it was found that the backlight illumination affects the performance of the driver IC, causing a 20% change in the IVDD current. The reason is that the light emitted from the backlight, after passing through the lower polarizer, will be refracted and totally reflected between the lower polarizer and the lower glass, and finally act on the driver IC, causing the driver IC performance to change, thus affecting the display effect, causing display abnormalities, and reducing the competitiveness of the product. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to prevent the backlight source from affecting the performance of the driver IC.

[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 the backlight source from affecting the driver IC, comprising a backlight module and a display module arranged above the backlight module, the backlight module is provided with a backlight source, the display module comprises a lower polarizer, a lower substrate, an upper substrate and an upper polarizer stacked in sequence from bottom to top, the lower substrate is longer than the upper substrate and extends outward to form a step, the upper surface of the lower substrate located at the step is bound with the driver IC and FPC, and the lower surface of the lower substrate located below the driver IC is pasted with black shading paper.

[0006] As a preferred implementation of the liquid crystal display screen for preventing the backlight source from affecting the driver IC provided by the utility model, the black light-shielding paper extends to the lower surface of the FPC.

[0007] As a preferred implementation of the liquid crystal display screen for preventing the backlight source from affecting the driver IC provided by the utility model, the cross-sectional area of ​​the black light-shielding paper is larger than the cross-sectional area of ​​the driver IC.

[0008] As a preferred implementation of the liquid crystal display screen for preventing the backlight source from affecting the driver IC provided by the utility model, the projection of the black light-shielding paper can completely cover the driver IC.

[0009] As a preferred implementation of the liquid crystal display screen for preventing the backlight source from affecting the driver IC provided by the utility model, the cross-sectional area of ​​the black light-shielding paper is more than 3 times the cross-sectional area of ​​the driver IC.

[0010] As a preferred implementation of the liquid crystal display screen for preventing the backlight source from affecting the driver IC provided by the utility model, the cross-sectional area of ​​the black light-shielding paper is 10 times the cross-sectional area of ​​the driver IC.

[0011] As a preferred implementation of the liquid crystal display screen that prevents the backlight source from affecting the driver IC provided by the utility model, a traceability label paper and a shielding paper are provided on the surface of the FPC, the shielding paper covers the surface of the FPC and the traceability label paper, the shielding paper includes a shielding layer, a glue layer and a non-adhesive layer stacked in sequence from top to bottom, the size and position of the non-adhesive layer correspond to the size and position of the traceability label paper, the non-adhesive layer covers the traceability label paper, and the glue layer covers the surface of the FPC.

[0012] As a preferred implementation of the liquid crystal display screen for preventing the backlight source from affecting the driver IC provided by the utility model, the thickness of the non-adhesive layer is 0.03mm-0.06mm.

[0013] As a preferred implementation of the liquid crystal display screen for preventing the backlight source from affecting the driver IC provided by the utility model, the edge of the non-adhesive layer exceeds the edge of the traceability label paper by 1.5 mm to 3 mm.

[0014] As a preferred implementation of the liquid crystal display screen for preventing the backlight source from affecting the driver IC provided by the utility model, the non-adhesive layer and the shielding layer have different appearance colors.

[0015] The utility model has the following beneficial effects:

[0016] Black shading paper is pasted on the lower surface of the lower substrate under the driver IC to prevent the light emitted by the backlight from acting on the driver IC, thereby preventing changes in the driver IC performance, improving the display effect, preventing display abnormalities, and improving the competitiveness of the product. The black shading paper has high shading performance and can effectively prevent light from penetrating. It has strong viscosity and prevents the shading paper from falling off the glass surface. It has high reliability and can meet the vehicle reliability specification requirements. 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 schematic structural diagram of a liquid crystal display screen that prevents a backlight source from affecting a driver IC.

[0019] Figure 2 for Figure 1 Bottom view of .

[0020] Figure 3 Schematic diagram of the improved structure of FPC.

[0021] Figure 4 This is a bottom view of the shielding paper.

[0022] Figure 5 Schematic diagram of the stacked structure of shielding paper.

[0023] Description of Figure Numbers:

[0024] Lower polarizer 1; lower substrate 2; upper substrate 3; upper polarizer 4; driver IC 5; FPC 6; black shading paper 7;

[0025] Traceability label paper 8; shielding paper 9; shielding layer 91; glue layer 92; non-adhesive layer 93. 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 liquid crystal display screen which can avoid the influence of a backlight source on a driver IC, comprising a backlight module and a display module arranged above the backlight module, wherein the backlight module is provided with a backlight source, and the display module comprises a lower polarizer, a lower substrate, an upper substrate and an upper polarizer which are sequentially stacked and arranged from bottom to top, wherein the lower substrate is longer than the upper substrate and extends outward to form a step, the upper surface of the lower substrate located at the step is bound with a driver IC and an FPC, and the lower surface of the lower substrate located below the driver IC is pasted with black shading paper.

[0030] Black shading paper is pasted on the lower surface of the lower substrate under the driver IC to prevent the light emitted by the backlight from acting on the driver IC, thereby preventing changes in the driver IC performance, improving the display effect, preventing display abnormalities, and improving the competitiveness of the product. The black shading paper has high shading performance and can effectively prevent light from penetrating. It has strong viscosity and prevents the shading paper from falling off the glass surface. It has high reliability and can meet the vehicle reliability specification requirements.

[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 and Figure 2, a liquid crystal display screen for preventing the backlight source from affecting the driver IC provided by the utility model, comprising a backlight module and a display module, the display module being arranged above the backlight module, a backlight source being arranged in the backlight module, the display module comprising a lower polarizer 1, a lower substrate 2, an upper substrate 3 and an upper polarizer 4 being arranged in a sequential order from bottom to top, the lower substrate 2 being longer than the upper substrate 3 and extending outward to form a step, the upper surface of the lower substrate 2 located at the step being bound with a driver IC 5 and an FPC 6, and the lower surface of the lower substrate 2 located below the driver IC 5 being pasted with a black shading paper 7. Since the lower surface of the lower substrate 2 below the driver IC 5 is pasted with the black shading paper 7, the light emitted by the backlight source is prevented from acting on the driver IC 5, so as to prevent the driver IC 5 from causing a change in its performance, thereby improving the display effect, preventing display abnormalities, and improving the competitiveness of the product. The black shading paper 7 has a high shading performance, which can effectively prevent light from penetrating, and has a strong viscosity, which prevents the shading paper from falling off the glass surface; it has high reliability, and can meet the vehicle-mounted reliability specification requirements.

[0033] Furthermore, the side of the black shading paper 7 away from the display area is flush with the edge of the lower polarizer 1; the side of the black shading paper 7 close to the FPC extends to the lower surface of the FPC6. This can increase the firmness of the FPC6 after binding with the lower substrate 2ACF, and avoid the FPC6 falling off from the lower substrate 2 due to stress. The black shading paper 7 is soft in material, which can avoid affecting the bending assembly of the FPC6 and the display MURA caused by stress after assembly.

[0034] Furthermore, the cross-sectional area of ​​the black light-shielding paper 7 is larger than the cross-sectional area of ​​the driver IC 5. The projection of the black light-shielding paper 7 can completely cover the driver IC 5, so that the light of the backlight source cannot completely shine on the driver IC 5, avoiding affecting the performance of the driver IC 5.

[0035] Furthermore, the cross-sectional area of ​​the black light-shielding paper 7 is more than 3 times the cross-sectional area of ​​the driver IC 5. In this embodiment, the cross-sectional area of ​​the black light-shielding paper 7 is 10 times the cross-sectional area of ​​the driver IC 5. It not only plays a light-shielding role but also plays a role in fixing the FPC 6.

[0036] See also Figures 3 to 5As a further optimization scheme of Example 1, in this embodiment, the surface of FPC6 is provided with a traceability label paper 8 and a shielding paper 9, the traceability label paper 8 is pasted on the surface of the FPC6, the shielding paper 9 covers the surface of the FPC6 and the traceability label paper 8, and the shielding paper 9 includes a shielding layer 91, a glue layer 92 and a non-adhesive layer 93 which are stacked in sequence from top to bottom, the size and position of the non-adhesive layer 93 correspond to the size and position of the traceability label paper 8, the non-adhesive layer 93 covers the traceability label paper 8, and the glue layer 92 covers the surface of FPC6. Since the bottom layer of the shielding paper 9 is provided with a non-adhesive layer 93, and the non-adhesive layer 93 covers the traceability label paper 8, and the glue layer 92 covers other areas on the surface of FPC6, that is, by adding a non-adhesive non-adhesive layer 93 in the corresponding area of ​​the traceability label paper 8, the viscosity of the shielding paper 9 is isolated from the traceability label paper 8, which can avoid the problem of easy peeling of the traceability code on the traceability label paper 8 caused by the viscosity of the shielding paper 9 during rework, and improve the traceability of product accessories.

[0037] Furthermore, the thickness of the non-adhesive layer 93 is 0.03mm-0.06mm. The edge of the non-adhesive layer 93 exceeds the edge of the traceability label paper 8 by 1.5mm to 3mm to ensure that the non-adhesive layer 93 can still completely cover the traceability label paper 8 in the case of affixing deviation. In addition, the appearance color of the non-adhesive layer 93 and the shielding layer 91 are different, so that the naked eye can easily distinguish whether the non-adhesive layer 93 has a missing affixed problem, ensuring the consistency of the product.

[0038] 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.

[0039] 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 that prevents a backlight source from affecting a driver IC, characterized in that: It includes a backlight module and a display module arranged above the backlight module, wherein a backlight source is arranged in the backlight module, and the display module includes a lower polarizer, a lower substrate, an upper substrate and an upper polarizer which are stacked in sequence from bottom to top, wherein the lower substrate is longer than the upper substrate and extends outward to form a step, a driver IC and an FPC are bound to the upper surface of the lower substrate located at the step, and black shading paper is pasted on the lower surface of the lower substrate located below the driver IC.

2. The liquid crystal display screen for preventing the backlight source from affecting the driver IC according to claim 1, characterized in that: The black light-shielding paper extends to the lower surface of the FPC.

3. The liquid crystal display screen for preventing the backlight source from affecting the driver IC according to claim 1, characterized in that: The cross-sectional area of ​​the black light-shielding paper is larger than the cross-sectional area of ​​the driving IC.

4. The liquid crystal display screen for preventing the backlight source from affecting the driver IC according to claim 3, characterized in that: The projection of the black light-shielding paper can completely cover the driver IC.

5. The liquid crystal display screen for preventing the backlight source from affecting the driver IC according to claim 4, characterized in that: The cross-sectional area of ​​the black light-shielding paper is more than three times the cross-sectional area of ​​the driver IC.

6. The liquid crystal display screen for preventing the backlight source from affecting the driver IC according to claim 5, characterized in that: The cross-sectional area of ​​the black light-shielding paper is 10 times the cross-sectional area of ​​the driver IC.

7. The liquid crystal display screen for preventing the backlight source from affecting the driver IC according to claim 1, characterized in that: A traceability label paper and a shielding paper are provided on the surface of the FPC, the shielding paper covers the surface of the FPC and the traceability label paper, the shielding paper comprises a shielding layer, a glue layer and a non-adhesive layer stacked in sequence from top to bottom, the size and position of the non-adhesive layer correspond to the size and position of the traceability label paper, the non-adhesive layer covers the traceability label paper, and the glue layer covers the surface of the FPC.

8. The liquid crystal display screen for preventing the backlight source from affecting the driver IC according to claim 7, characterized in that: The thickness of the non-adhesive layer is 0.03 mm to 0.06 mm.

9. The liquid crystal display screen for preventing the backlight source from affecting the driver IC according to claim 7, characterized in that: The edge of the non-adhesive layer exceeds the edge of the traceability label paper by 1.5 mm to 3 mm.

10. The liquid crystal display screen for preventing the backlight source from affecting the driver IC according to claim 7, characterized in that: The non-adhesive layer and the shielding layer have different appearance colors.

Images