Display module structure capable of preventing terminal from being pressed and broken

Abstract

The utility model relates to the technical field of liquid crystal display modules, in particular to a display module structure capable of preventing a terminal from being pressed and broken, which comprises a display portion and a backlight portion, and the display portion comprises an LCD, an upper polaroid, a lower polaroid, an FPC and a driving chip. The upper polaroid is arranged on the LCD, and the cover plate is arranged on the upper polaroid; the lower polaroid is arranged on the backlight part, and the LCD is arranged on the lower polaroid; a terminal area is formed between one end of the LCD and one end of the cover plate; the FPC is arranged in the terminal area; the terminal area is internally provided with an elastic cushion block which is used for preventing deformation of the LCD. And the driving chip is arranged in the cushion block. According to the utility model, the elastic cushion block used for preventing deformation of the LCD is arranged in the terminal area; the cushion block is arranged between the cover plate and the LCD, the cushion block has elasticity, when the LCD is subjected to external force, the cushion block can abut between the cover plate and the LCD and is compressed and deformed, a buffering effect is provided for the LCD, and the LCD is prevented from being damaged due to deformation under the action of the external force.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display modules, in particular to a display module structure for preventing terminals from being pressed and broken. Background Art

[0002] The main components of the display module are the backlight and the display. The usual display part includes an upper polarizer, LCD, a lower polarizer, IC, FPC, CG or TP. The backlight includes an integrated iron-glue frame, a reflector, a light guide plate, film materials (upper light-enhancing film, lower light-enhancing film, diffusion film), and black double-sided shading adhesive. The assembly process of the display film group can be briefly described as follows: first assemble the upper polarizer, LCD, lower polarizer, IC and FPC into FOG, then assemble the integrated iron-glue frame, reflector, light guide plate, film materials, and black double-sided shading adhesive into the backlight, then assemble the CG, touch sensor, touch IC, and touch FPC into TP, and then assemble the FOG and CG / TP together with the backlight.

[0003] LCD is a display box composed of two glass circuit boards, CF and TFT. IC and FPC need to be bound to the LCD and connected to the circuit inside the LCD screen to drive the LCD display. Therefore, an extra area is needed outside the LCD box to connect the IC and FPC. This single-layer area is called the LCD terminal in the industry. With the development of technology, the thickness of display screens is getting thinner and thinner. The thinnest single-layer LCD glass currently used in mobile phones is 0.1mm. Due to the fragile nature of glass and the single-layer structure of the terminal area, when FOG and CG / TP are bonded, the corresponding terminal area is in a suspended state. In this way, if mobile phones, tablets and other electronic products are dropped or pressed hard during use, the terminal may break, resulting in irreparable display abnormalities due to broken display circuits. Utility Model Content

[0004] The purpose of the utility model is to provide a display module structure that prevents terminals from being pressed and broken, so as to solve the problems raised in the above-mentioned background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A display module structure for preventing terminals from being pressed and broken comprises a display unit and a backlight unit, wherein the display unit comprises an LCD, an upper polarizer, a lower polarizer, an FPC and a driving chip;

[0007] The upper polarizer is mounted on the LCD, and the cover plate is mounted on the upper polarizer;

[0008] The lower polarizer is mounted on the backlight, and the LCD is mounted on the lower polarizer;

[0009] A terminal area is formed between one end of the LCD and one end of the cover plate;

[0010] The FPC is installed in the terminal area;

[0011] The terminal area is provided with an elastic cushion block for preventing the LCD from deforming;

[0012] The driving chip is installed in the pad block.

[0013] Furthermore, the cushion block has an inner cavity, and the inner cavity is connected to the outside of the cushion block through a channel.

[0014] Furthermore, the channel includes a tapered section a and a straight section b, wherein the end of the tapered section a with a larger diameter is connected to the inner cavity, and the end of the tapered section a with a smaller diameter is connected to the straight section b.

[0015] Furthermore, the inner cavity is elliptical, and the channels are symmetrically distributed around the center of the inner cavity.

[0016] Furthermore, the end surface of the pad that contacts the LCD has protrusions, and protrusion gaps are formed between adjacent protrusions.

[0017] Furthermore, the pad is foam, and the cover plate and the upper polarizer are adhered by a first OCA glue.

[0018] Furthermore, the cushion block and the cover plate are detachably mounted via a snap-fit ​​structure, wherein the snap-fit ​​structure comprises a protrusion in the mounting groove on the cover plate, and a groove formed on the side of the cushion block and cooperating with the protrusion.

[0019] Compared with the prior art, the beneficial effects of the utility model are:

[0020] The utility model provides an elastic cushion block for preventing LCD deformation in the terminal area; the cushion block is elastic, and when the LCD is subjected to external force, the cushion block will be pressed between the cover plate and the LCD and compressed to deform, providing a buffering effect for the LCD, preventing the LCD from being deformed and damaged under the action of external force, and improving the anti-compression and breakage ability of the display module.

[0021] In the utility model, the end surface of the pad in contact with the LCD has a protrusion, and a protrusion gap is formed between adjacent protrusions. The protrusion gap can meet the actual production or use conditions, and the pad and the LCD can be pasted by optical glue, and the protrusion gap can retain more glue to improve the pasting effect.

[0022] The utility model can realize the quick disassembly or installation between the cushion block and the cover plate through the clamping structure, and changes the method of gluing the cover plate and the upper polarizer through optical glue (OCA glue) in the prior art. The purpose of this is to avoid taking a lot of effort to disassemble the cover plate and the upper polarizer when inspecting the display part or the backlight part, which may also damage the cover plate, the upper polarizer or other components, and realize simple and convenient disassembly. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 It is a schematic diagram of the structure of the utility model.

[0024] Figure 2 The utility model is a schematic diagram of the specific structure of the installation pad in the terminal area.

[0025] In the figure: 1-cover plate, 2-upper polarizer, 3-first OCA glue, 4-second OCA glue, 5-buffer gap, 6-LCD, 7-lower polarizer, 8-terminal area, 9-FPC, 10-driver chip, 11-pad, 12-inner cavity, 13-channel, 14-gap, 15-mounting groove, 16-protrusion, 17-groove, 18-protrusion, 19-iron frame, 20-upper brightness enhancement sheet, 21-lower brightness enhancement sheet, 22-diffuser, 23-light guide plate, 24-reflector, 25-light-shielding double-sided tape. DETAILED DESCRIPTION

[0026] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0027] In the description of the present invention, it should be noted that the terms "upper end", "lower end", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions 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 device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0028] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "sleeved", "sleeved", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0029] See also Figure 1 to Figure 2 , the utility model provides a technical solution:

[0030] A display module structure for preventing terminals from being pressed and broken, comprising a display unit and a backlight unit, wherein the display unit comprises an LCD 6, an upper polarizer 2, a lower polarizer 7, an FPC 9 and a driving chip 10;

[0031] The upper polarizer 2 is mounted on the LCD 6, and the cover plate 1 is mounted on the upper polarizer 2;

[0032] The lower polarizer 7 is mounted on the backlight, and the LCD 6 is mounted on the lower polarizer 7;

[0033] A terminal area 8 is formed between one end of the LCD 6 and one end of the cover plate 1;

[0034] The FPC 9 is installed in the terminal area 8 .

[0035] When the LCD 6 is subjected to external force, its periphery is easily deformed and damaged toward the cover plate 1 or the backlight part, thereby causing damage to the LCD 6. The working principle of the utility model is to provide support around the LCD 6 to provide a buffering effect when it is subjected to force, thereby avoiding damage to the LCD 6 caused by deformation and damage around the LCD 6.

[0036] Specifically, the terminal area 8 is provided with an elastic pad 11 for preventing the LCD 6 from deforming; the pad 11 is elastic, and when the LCD 6 is subjected to an external force, the pad 11 will be pressed between the cover plate 1 and the LCD 6 and compressed and deformed, providing a buffering effect for the LCD 6. In this embodiment, the pad 11 is an elastic foam.

[0037] Specifically, the cushion block 11 has an inner cavity 12, and the inner cavity 12 is connected to the outside of the cushion block 11 through a channel 13. Since the cushion block 11 is made of foam and has elasticity, in order to cooperate with the compression of the foam when under pressure, thereby providing a buffering effect for the LCD 6, the inner cavity 12 is reserved, so that when squeezed, the inner cavity 12 provides a compressed space, so that the cushion block 11 has a better buffering effect.

[0038] Since the extrusion is completed in a short time, a channel 13 is reserved in the inner cavity 12, through which the gas in the inner cavity 12 can be discharged outward during the extrusion, thereby changing the inner cavity 12. The channel 13 includes a conical section a and a straight section b. The end of the conical section a with a large diameter is connected to the inner cavity 12, and the end of the conical section a with a small diameter is connected to the straight section b. The inner cavity 12 is elliptical, and the channels 13 are symmetrically distributed around the center of the inner cavity 12. The conical section a can allow the inner cavity 12 to exhaust quickly, so that the cushion block 11 has a compression modulus and achieves a better buffering effect, while the straight section b exhausts smoothly and ensures that the cushion block 11 has a better supporting effect.

[0039] Specifically, the end surface of the pad 11 in contact with the LCD 6 has a protrusion 18, and a protrusion gap is formed between adjacent protrusions 18. The protrusion gap can meet the actual production or use conditions, and the pad 11 and the LCD 6 can be pasted by optical glue, and the protrusion gap can retain more glue to improve the pasting effect.

[0040] The driver chip 10 is installed in the pad 11, and the pad 11 provides a protection area for the driver chip 10. The driver chip 10 has a gap 14 from the LCD 6. This can also reduce the squeezing of the driver chip 10 when the LCD 6 is subjected to external force, thereby reducing the probability of damage to the driver chip 10.

[0041] Specifically, the pad 11 and the cover plate 1 are detachably mounted through a snap-fit ​​structure, and the snap-fit ​​structure includes a protrusion 16 in the mounting groove 15 on the cover plate 1, and a groove 17 opened on the side of the pad 11 and matched with the protrusion 16. The snap-fit ​​structure can realize the rapid disassembly or installation between the pad 11 and the cover plate 1, and change the way of sticking the cover plate 1 and the upper polarizer 2 by optical glue (OCA glue) in the prior art. The purpose of doing so is to avoid taking great effort to disassemble the cover plate 1 and the upper polarizer 2 when repairing the display part or the backlight part, and it may also damage the cover plate 1, the upper polarizer 2 or other components, so as to realize simple and convenient disassembly.

[0042] Specifically, the upper polarizer 2 and the two ends of the LCD 6 are adhered by OCA glue 3, and a buffer gap 5 is formed between the two ends of the OCA glue 3. Figure 1 As shown, this method can not only fix the upper polarizer 2 and LCD 6, but also the OCA glue plays a supporting role between the two. The buffer gap 5 formed makes the amount of OCA glue relatively small, and will not affect the imaging effect of LCD 6.

[0043] OCA glue 3 has strong adhesion, high tensile strength, weather resistance, vibration resistance, moisture resistance and adaptability to large changes in temperature, which can improve the display module product's ability to resist crushing.

[0044] Optionally, according to actual production or use conditions, the cover plate 1 and the upper polarizer 2 are adhered together by OCA glue 3 .

[0045] The backlight part includes an iron frame 19 and a reflective sheet 24, a light guide plate 23, a diffuser 22, a lower brightening sheet 21 and an upper brightening sheet 20 which are sequentially installed in the iron frame 19 from bottom to top. The upper end surface of the upper brightening sheet 20 is provided with a light-shielding double-sided tape 25, and the lower end surface of the LCD 6 is attached to the light-shielding double-sided tape 25.

[0046] In the present invention, when the LCD 6 is subjected to an external force, the elastic cushion block 11 is compressed and deformed to provide a buffering effect for the LCD, thereby preventing the LCD from being deformed and damaged under the action of the external force.

[0047] The present utility model, the undescribed parts are prior art.

[0048] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A display module structure for preventing terminals from being pressed and broken, characterized in that: It comprises a display unit and a backlight unit, wherein the display unit comprises an LCD (6), an upper polarizer (2), a lower polarizer (7), an FPC (9) and a driving chip (10); The upper polarizer (2) is mounted on the LCD (6), and the cover plate (1) is mounted on the upper polarizer (2); The lower polarizer (7) is mounted on the backlight portion, and the LCD (6) is mounted on the lower polarizer (7); A terminal area (8) is formed between one end of the LCD (6) and one end of the cover plate (1); The FPC (9) is installed in the terminal area (8); The terminal area (8) is provided with an elastic cushion block (11) for preventing the LCD (6) from deforming; The driving chip (10) is installed in the cushion block (11).

2. A display module structure for preventing terminals from being pressed and broken as claimed in claim 1, characterized in that: The cushion block (11) has an inner cavity (12), and the inner cavity (12) is connected to the outside of the cushion block (11) through a channel (13).

3. A display module structure for preventing terminals from being pressed and broken as claimed in claim 2, characterized in that: The channel (13) comprises a tapered section a and a straight section b. The end of the tapered section a with a larger diameter is connected to the inner cavity (12), and the end of the tapered section a with a smaller diameter is connected to the straight section b.

4. A display module structure for preventing terminals from being pressed and broken as claimed in claim 2, characterized in that: The inner cavity (12) is elliptical in shape, and the channels (13) are symmetrically distributed around the center of the inner cavity (12).

5. A display module structure for preventing terminals from being pressed and broken as claimed in claim 1, characterized in that: The end surface of the cushion block (11) in contact with the LCD (6) is provided with a protrusion (18), and protrusion gaps are formed between adjacent protrusions (18).

6. A display module structure for preventing terminals from being pressed and broken as claimed in any one of claims 1 to 5, characterized in that: The cushion block (11) is made of foam, and the cover plate (1) and the upper polarizer (2) are adhered to each other via a first OCA glue (3).

7. A display module structure for preventing terminals from being pressed and broken as claimed in claim 1, characterized in that: The cushion block (11) and the cover plate (1) are detachably mounted via a snap-fit ​​structure, wherein the snap-fit ​​structure comprises a protrusion (16) in a mounting groove (15) on the cover plate (1), and a groove (17) formed on a side of the cushion block (11) and cooperating with the protrusion (16).

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