Liquid crystal display module for protecting driving IC (integrated circuit)

Abstract

The utility model discloses a liquid crystal display module for protecting a driving IC (integrated circuit), which comprises a cover plate, an OCA (optical clear adhesive) layer is arranged on the lower surface of the cover plate, an upper polaroid is arranged on the lower surface of the OCA layer, upper glass is arranged on the lower surface of the upper polaroid, a liquid crystal layer is arranged on the lower surface of the upper glass, and a liquid crystal layer is arranged on the lower surface of the liquid crystal layer. The lower surface of the liquid crystal layer is provided with lower glass, the lower surface of the lower glass is provided with a lower polaroid, the lower surface of the lower polaroid is provided with a backlight plate, the edge of the lower surface of the upper glass is provided with an FPC (Flexible Printed Circuit) board, the upper glass is larger than the lower glass, and the lower glass is provided with a liquid crystal layer. A containing groove is formed between the edge of the upper piece of glass and the backlight plate, a driving IC is arranged on the edge of the lower surface of the upper piece of glass, and the driving IC faces the containing groove. The driving IC is arranged in the closed accommodating groove, so that protection glue for protecting the driving IC can be saved, and the production cost is effectively reduced.

Description

Technical Field

[0001] The utility model relates to a liquid crystal display module, more precisely, a liquid crystal display module for protecting a driving IC. Background Art

[0002] The existing liquid crystal display module mainly consists of a cover plate, an LCD and a backlight. The cover plate is attached to the surface of the upper polarizer of the LCD through OCA optical adhesive. Since the driving IC and the FPC need to be bonded, the OCA cannot cover between the driving IC and the cover plate. Only a protective adhesive needs to be coated on the surface of the IC (to prevent foreign matters or water vapor from entering and affecting the normal operation of the driving IC), and a gap needs to be reserved between the protective adhesive and the cover plate. This design not only requires coating the IC protective adhesive on the surface of the IC, but also when attaching the cover plate, uneven attaching pressure is likely to occur on the side close to the gap due to the absence of OCA, which affects the attaching effect.

[0003] The Chinese utility model patent document CN216979499U discloses a liquid crystal display module, comprising: a display panel, the display panel includes a TFT substrate and a driving IC disposed on the TFT substrate, wherein the TFT substrate includes a display area in the middle and a non-display area located outside the display area and where the driving IC is disposed, the width of the non-display area is narrower on both sides of the driving IC, and the width is wider on one side away from the driving IC; a backlight module, the backlight module is bonded to the non-display area of the TFT substrate; a cover plate, the cover plate is bonded to the front surface of the display panel. The display area of the TFT substrate is circular. The side edge of the TFT substrate on the side away from the driving IC is arc-shaped and smoothly transitions with the side edges on both sides of the driving IC; the side edges of the TFT substrate on both sides of the driving IC are straight edges. The narrowest width of the non-display area on the side away from the driving IC is 1-2 mm larger than the minimum width of the straight edges of the non-display area on both sides of the driving IC. The width of the straight edges of the non-display area on both sides of the driving IC is less than 2 mm. The display panel further includes a lower polarizer bonded between the TFT substrate and the backlight module. In the direction perpendicular to the backlight module to the display panel, the lower polarizer is concave with respect to the TFT substrate on the side away from the driving IC, and the part of the TFT substrate protruding from the lower polarizer is directly bonded to the backlight module; or, in the direction perpendicular to the backlight module to the display panel, the lower polarizer is flush with the TFT substrate on the side away from the driving IC. In the direction perpendicular to the backlight module to the display panel, the end of the TFT substrate on the side away from the driving IC is flush with or concave with respect to the cover plate. The liquid crystal display module further includes a plastic iron frame for placing the backlight module, and the plastic iron frame is provided with protruding lugs on the side away from the driving IC, and the lugs are press-bonded to the surface of the TFT substrate facing away from the backlight module. At least three lugs are arranged at intervals.

[0004] Obviously, this patent effectively increases the bonding area between the backlight module and the TFT substrate by increasing the bonding area of the side of the TFT substrate away from the driving IC, thereby increasing the bonding firmness between the backlight module and the TFT substrate, and as much as possible meeting the narrow-edge requirement of the liquid crystal display module. When this liquid crystal display module is especially used in in-vehicle liquid crystal display devices or smart wearable liquid crystal display devices, it can effectively improve the anti-vibration performance of the liquid crystal display device, extend the service life of the liquid crystal display device, and improve the user experience. However, this structure cannot solve the problems brought by the existing driving IC. Utility Model Content

[0005] Based on this, it is necessary to provide a liquid crystal display module for protecting a driving IC to address the above technical problems. The liquid crystal display module includes a cover plate. An OCA layer is provided on the lower surface of the cover plate. An upper polarizer is provided on the lower surface of the OCA layer. An upper glass sheet is provided on the lower surface of the upper polarizer. A liquid crystal layer is provided on the lower surface of the upper glass sheet. A lower glass sheet is provided on the lower surface of the liquid crystal layer. A lower polarizer is provided on the lower surface of the lower glass sheet. A backlight plate is provided on the lower surface of the lower polarizer. An FPC board is provided at the edge of the lower surface of the upper glass sheet. Among them, the upper glass sheet is larger than the lower glass sheet, and a receiving groove is formed between the edge of the upper glass sheet and the backlight plate. A driving IC is provided at the edge of the lower surface of the upper glass sheet, and the driving IC faces the receiving groove. Since the driving IC is arranged in the sealed receiving groove, the protective glue for protecting the driving IC can be omitted, effectively reducing the production cost. Since the upper glass sheet is larger than the lower glass sheet, the upper polarizer on the surface of the upper glass sheet can be increased. At the same time, the contact area between the OCA layer and the cover plate can also be increased synchronously, which is beneficial to improving the bonding effect of the cover plate.

[0006] To solve the above technical problems, the present utility model adopts the following technical solutions:

[0007] A liquid crystal display module for protecting a driving IC, the liquid crystal display module for protecting a driving IC includes a cover plate. An OCA layer is provided on the lower surface of the cover plate. An upper polarizer is provided on the lower surface of the OCA layer. An upper glass sheet is provided on the lower surface of the upper polarizer. A liquid crystal layer is provided on the lower surface of the upper glass sheet. A lower glass sheet is provided on the lower surface of the liquid crystal layer. A lower polarizer is provided on the lower surface of the lower glass sheet. A backlight plate is provided on the lower surface of the lower polarizer. An FPC board is provided at the edge of the lower surface of the upper glass sheet. Among them, the upper glass sheet is larger than the lower glass sheet, and a receiving groove is formed between the edge of the upper glass sheet and the backlight plate. A driving IC is provided at the edge of the lower surface of the upper glass sheet, and the driving IC faces the receiving groove.

[0008] As a preferred embodiment of the liquid crystal display module for protecting a driving IC provided by the present utility model, the size of the upper glass sheet is the same as that of the backlight plate.

[0009] As a preferred embodiment of the liquid crystal display module for protecting a driving IC provided by the present utility model, the size of the OCA layer is the same as that of the upper glass sheet.

[0010] As a preferred embodiment of the liquid crystal display module for protecting a driving IC provided by the present utility model, a retaining arm is provided at the edge of the backlight plate, and the top end surface of the retaining arm is adhesively connected to the lower surface of the upper glass sheet.

[0011] As a preferred embodiment of the liquid crystal display module for protecting the driving IC provided by the present utility model, an avoidance notch is provided on the upper surface of the backlight plate.

[0012] As a preferred embodiment of the liquid crystal display module for protecting the driving IC provided by the present utility model, the position of the avoidance notch corresponds to that of the driving IC.

[0013] As a preferred embodiment of the liquid crystal display module for protecting the driving IC provided by the present utility model, the avoidance notch is arc-shaped.

[0014] As a preferred embodiment of the liquid crystal display module for protecting the driving IC provided by the present utility model, a reflective film is provided on the inner wall of the avoidance notch.

[0015] As a preferred embodiment of the liquid crystal display module for protecting the driving IC provided by the present utility model, the reflective film is an infrared reflective film.

[0016] As a preferred embodiment of the liquid crystal display module for protecting the driving IC provided by the present utility model, the thickness of the reflective film is 0.2 mm.

[0017] Compared with the prior art, the present utility model has the following beneficial effects:

[0018] The present utility model provides a liquid crystal display module for protecting a driving IC. Since the driving IC is arranged in a sealed accommodation groove, the protective glue for protecting the driving IC can be omitted, effectively reducing the production cost. Since the upper glass is larger than the lower glass, the upper polarizer on the surface of the upper glass can be increased. At the same time, the contact area between the OCA layer and the cover plate can also be increased synchronously, which is beneficial to improving the bonding effect of the cover plate.

[0019] In addition, an avoidance notch can be provided on the upper surface of the backlight plate. The position of the avoidance notch corresponds to that of the driving IC. The avoidance notch is arc-shaped. By using the arc-shaped avoidance notch, the backlight plate can be effectively prevented from squeezing the driving IC. At the same time, the avoidance notch provides a larger heat dissipation space for the driving IC, thereby improving the thermal stability and reliability of the liquid crystal display module.

[0020] In addition, a reflective film can be provided on the inner wall of the avoidance notch. The reflective film is an infrared reflective film. The thickness of the reflective film is 0.2 mm. By using the reflective film, the heat dissipated by the driving IC can be effectively reflected, avoiding excessive heat accumulation and improving the reliability of the liquid crystal display module. Description of the Drawings

[0021] 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 drawings in the following description are some embodiments of the present utility model. For those of ordinary skill in the art, without creative efforts, other drawings can also be obtained based on these drawings.

[0022] Figure 1 It is a schematic structural diagram of a liquid crystal display module for protecting a driving IC according to the present utility model;

[0023] Figure 2 For Figure 1 It is a detailed enlarged schematic diagram of area A of the liquid crystal display module with a protected driving IC in

[0024] Figure 3 For Figure 1 It is a partial three-dimensional structural schematic diagram of the liquid crystal display module with a protected driving IC in

[0025] Figure 4 It is a schematic structural diagram of another embodiment of the liquid crystal display module for protecting a driving IC according to the present utility model;

[0026] The markings in the figure are explained as follows: 1. Cover plate; 2. OCA layer; 3. Upper polarizer; 4. Upper glass sheet; 5. Lower glass sheet; 6. Lower polarizer; 7. Backlight panel; 71. Blocking arm; 72. Reflective film; 8. Driving IC; M. FPC board; S. Accommodating groove. Specific embodiments

[0027] In order to enable those skilled in the art to better understand the solutions of the present utility model, the following will clearly and completely describe the technical solutions in the embodiments of the present utility model in conjunction with the 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 the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the scope of protection of the present utility model.

[0028] As described in the background art, for the existing liquid crystal display module, the existing liquid crystal display module mainly consists of a cover plate, an LCD and a backlight. Among them, the cover plate is attached to the surface of the upper polarizer of the LCD through an OCA optical adhesive. Since the driving IC and the FPC need to be bonded, the OCA cannot cover between the driving IC and the cover plate. Only a protective adhesive can be coated on the surface of the IC, and a gap needs to be reserved between the protective adhesive and the cover plate. This design not only requires coating the IC protective adhesive on the surface of the IC, but also when attaching the cover plate, due to the absence of OCA on one side close to the gap, it is easy to have uneven bonding pressure, affecting the bonding effect.

[0029] To solve this technical problem, the present utility model provides a liquid crystal display module for protecting a driving IC, which includes a cover plate 1. An OCA layer 2 is provided on the lower surface of the cover plate 1. An upper polarizer 3 is provided on the lower surface of the OCA layer 2. An upper glass sheet 4 is provided on the lower surface of the upper polarizer 3. A liquid crystal layer 9 is provided on the lower surface of the upper glass sheet 4. A lower glass sheet 5 is provided on the lower surface of the liquid crystal layer 9. A lower polarizer 6 is provided on the lower surface of the lower glass sheet 5. A backlight plate 7 is provided on the lower surface of the lower polarizer 6. An FPC board M is provided at the edge of the lower surface of the upper glass sheet 4. Among them, the upper glass sheet 4 is larger than the lower glass sheet 5, and a receiving groove S is formed between the edge of the upper glass sheet 4 and the backlight plate 7. A driving IC 8 is provided at the edge of the lower surface of the upper glass sheet 4, and the driving IC 8 faces the receiving groove S.

[0030] Through the above structural design, since the driving IC 8 is arranged in the sealed receiving groove S, the protective glue for protecting the driving IC can be omitted, effectively reducing the production cost. Since the upper glass sheet 4 is larger than the lower glass sheet 5, the upper polarizer 3 on the surface of the upper glass sheet 4 can be increased. At the same time, the OCA layer 2 can also synchronously increase the contact area with the cover plate 1, which is beneficial to improving the bonding effect of the cover plate 1.

[0031] 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 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.

[0032] 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.

[0033] It should be noted that similar reference numerals and letters indicate 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.

[0034] Embodiment 1

[0035] Such as Figure 1 、 Figure 2 And Figure 3As shown in the figure, the liquid crystal display module for protecting the driving IC includes a cover plate 1. An OCA layer 2 is provided on the lower surface of the cover plate 1. An upper polarizer 3 is provided on the lower surface of the OCA layer 2. An upper glass sheet 4 is provided on the lower surface of the upper polarizer 3. A liquid crystal layer 9 is provided on the lower surface of the upper glass sheet 4. A lower glass sheet 5 is provided on the lower surface of the liquid crystal layer 9. A lower polarizer 6 is provided on the lower surface of the lower glass sheet 5. A backlight panel 7 is provided on the lower surface of the lower polarizer 6. An FPC board M is provided at the edge of the lower surface of the upper glass sheet 4. Among them, the upper glass sheet 4 is larger than the lower glass sheet 5, and a receiving groove S is formed between the edge of the upper glass sheet 4 and the backlight panel 7. A driving IC 8 is provided at the edge of the lower surface of the upper glass sheet 4, and the driving IC 8 faces the receiving groove S.

[0036] It should be noted that the size of the upper glass sheet 4 is the same as that of the backlight panel 7. In addition, the size of the OCA layer 2 is the same as that of the upper glass sheet 4.

[0037] In addition, a blocking arm 71 is provided at the edge of the backlight panel 7, and the top end face of the blocking arm 71 is adhesively connected to the lower surface of the upper glass sheet 4.

[0038] The working mode of this embodiment will be described below.

[0039] Since the driving IC 8 is arranged in the closed receiving groove S, the protective glue for protecting the driving IC can be omitted, effectively reducing the production cost. Since the upper glass sheet 4 is larger than the lower glass sheet 5, the upper polarizer 3 on the surface of the upper glass sheet 4 can be enlarged. At the same time, the OCA layer 2 can also synchronously increase the contact area with the cover plate 1, which is beneficial to improving the fitting effect of the cover plate 1.

[0040] Embodiment 2

[0041] As Figure 4 shown, the liquid crystal display module for protecting the driving IC provided in Embodiment 1 is further optimized. Specifically, a clearance notch 71S is provided on the upper surface of the backlight panel 7.

[0042] It should be noted that the position of the clearance notch 71S corresponds to that of the driving IC 8.

[0043] The clearance notch 71S is arc-shaped.

[0044] The working mode of this embodiment will be described below.

[0045] By using the arc-shaped clearance notch 71S, it can effectively prevent the backlight panel 7 from squeezing the driving IC 8. At the same time, the clearance notch 71S provides a larger heat dissipation space for the driving IC 8, thereby improving the thermal stability and reliability of the liquid crystal display module.

[0046] Embodiment 3

[0047] As shown Figure 4 in FIG. Figure 4 , the liquid crystal display module for protecting the driving IC provided in Embodiment 1 or 2 is further optimized. Specifically, a reflective film 72 is provided on the inner wall of the clearance notch 71S.

[0048] It should be noted that the reflective film 72 is an infrared reflective film.

[0049] In addition, the thickness of the reflective film 72 is 0.2 mm.

[0050] The working mode of this embodiment will be described below.

[0051] By using the reflective film 72, the heat dissipated by the driving IC 8 can be effectively reflected, avoiding excessive heat accumulation and improving the reliability of the liquid crystal display module.

[0052] The terms "coupled" and "coupled" involved in the embodiments of the present application should be understood in a broad sense. For example, it can refer to a direct physical connection, or an indirect connection realized through electronic devices, such as a connection realized through resistors, inductors, capacitors or other electronic devices.

[0053] In the present utility model, unless otherwise clearly defined and limited, terms such as "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection, an electrical connection or communication with each other; it can be directly connected, or indirectly connected through an intermediate medium, and can be the internal communication of two components or the interaction relationship between two components, 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 situations.

[0054] Obviously, the above-described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. The drawings show the 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, for those skilled in the art, they can still modify the technical solutions described in the foregoing specific embodiments, or perform equivalent replacements on 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 is similarly within the scope of the patent protection of the present application.

Claims

1. A liquid crystal display module for protecting a driver IC, characterized in that: The liquid crystal display module for protecting a driver IC comprises a cover plate (1), an OCA layer (2) is provided on the lower surface of the cover plate (1), an upper polarizer (3) is provided on the lower surface of the OCA layer (2), an upper glass (4) is provided on the lower surface of the upper polarizer (3), a liquid crystal layer (9) is provided on the lower surface of the upper glass (4), a lower glass (5) is provided on the lower surface of the liquid crystal layer (9), a lower polarizer (6) is provided on the lower surface of the lower glass (5), a backlight plate (7) is provided on the lower surface of the lower polarizer (6), an FPC plate (M) is provided on the edge of the lower surface of the upper glass (4), wherein the upper glass (4) is larger than the lower glass (5), and a receiving groove (S) is formed between the edge of the upper glass (4) and the backlight plate (7), and a driver IC (8) is provided on the edge of the lower surface of the upper glass (4), and the driver IC (8) faces the receiving groove (S).

2. The liquid crystal display module for protecting a driver IC according to claim 1, characterized in that: The size of the upper glass (4) is consistent with that of the backlight panel (7).

3. The liquid crystal display module for protecting a driver IC according to claim 1, characterized in that: The size of the OCA layer (2) is consistent with that of the upper glass (4).

4. The liquid crystal display module for protecting a driver IC according to claim 1, characterized in that: A stop arm (71) is provided at the edge of the backlight panel (7), and the top end surface of the stop arm (71) is bonded to the lower surface of the upper glass (4).

5. The liquid crystal display module for protecting a driver IC according to claim 1, characterized in that: A space-avoiding notch (71S) is provided on the upper surface of the backlight plate (7).

6. The liquid crystal display module for protecting a driver IC according to claim 5, characterized in that: The position of the air-avoiding notch (71S) corresponds to the driving IC (8).

7. The liquid crystal display module for protecting a driver IC according to claim 5, characterized in that: The air avoidance slot (71S) is arc-shaped.

8. The liquid crystal display module for protecting a driver IC according to claim 5, characterized in that: A reflective film (72) is provided on the inner wall of the air avoidance slot (71S).

9. The liquid crystal display module for protecting a driver IC according to claim 8, characterized in that: The reflective film (72) is an infrared reflective film.

10. The liquid crystal display module for protecting a driver IC according to claim 8, characterized in that: The thickness of the reflective film (72) is 0.2 mm.

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