Liquid crystal display structure and display module

Abstract

The utility model discloses a liquid crystal display screen structure and a display module, wherein the liquid crystal display screen structure includes: a display screen body, a display screen FPC and a reinforcing piece, wherein a binding area is arranged on the display screen body; a gold finger is arranged at one end of the display screen FPC, and the display screen FPC is bound to the binding area through the gold finger, and a side edge of the display screen FPC close to the gold finger extends in a direction away from the gold finger to form an extended protrusion, and a left non-gold finger part and a right non-gold finger part are formed on both sides of the gold finger; the reinforcing piece is respectively located on the extended protrusion, the left non-gold finger part and the right non-gold finger part. In this way, the bending starting point of the display screen FPC can be shortened, and then the size from the display screen FPC to the edge of the display module after bending can be shortened; in addition, by making the reinforcing piece avoid the area where the gold finger is arranged, it can also be avoided that the reinforcing piece is deformed after being heated or SMT baked, thereby affecting the binding effect of the gold finger.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to a liquid crystal display screen structure and a display module. Background Art

[0002] In display modules, most of the circuit boards used are FPCs, or flexible circuit boards. Flexible circuit boards are widely used in display modules because of their bending, folding and winding capabilities. Display modules usually include liquid crystal displays and backlight structures. When used in terminals, the FPC of the LCD display generally needs to be bent to the back of the backlight structure. The size of the back of the backlight structure after the FPC is bent will affect the design of the customer's overall machine structure. Generally, in the area of ​​the FPC gold finger, it is usually necessary to add a reinforcement structure on the back of the gold finger. Since the material of the reinforcement is relatively hard, when the FPC is bent to the back of the backlight structure, the starting point of the FPC's bending is at the edge of the reinforcement on the back of the gold finger. This will cause the bending size of the FPC to the back of the backlight structure to become larger, which in turn causes the overall size of the display module to become larger. In addition, due to the existing reinforcement structure, the reinforcement parts thereon are all arranged corresponding to the positions with gold fingers. Therefore, when the reinforcement parts are heated or SMT (surface mount technology) baked, the reinforcement parts are prone to deformation, which will have a certain impact on the position and size of the gold fingers, and thus affect the binding effect of the gold fingers. Utility Model Content

[0003] The purpose of the utility model is to overcome the shortcomings of the prior art and provide a liquid crystal display screen structure and a display module, so as to shorten the bending size of the FPC of the display screen and prevent the reinforcing member from affecting the binding effect of the gold finger.

[0004] The purpose of this utility model is achieved through the following technical solutions:

[0005] A liquid crystal display structure comprises: a display body, a display FPC and a reinforcing piece, wherein a binding area is arranged on the display body; a gold finger is arranged at one end of the display FPC, and the display FPC is bound to the binding area through the gold finger; a side edge of the display FPC close to the gold finger extends in a direction away from the gold finger to form an extended protrusion, and a left non-gold finger part and a right non-gold finger part are formed on both sides of the gold finger; the reinforcing piece is respectively located on the extended protrusion, the left non-gold finger part and the right non-gold finger part.

[0006] In one embodiment, the reinforcement is a PI reinforcement.

[0007] In one embodiment, the reinforcement part includes a left reinforcement part, a middle reinforcement part and a right reinforcement part, the middle reinforcement part is located on the extended protrusion, one end of the left reinforcement part is connected to one end of the middle reinforcement part, one end of the right reinforcement part is connected to the other end of the middle reinforcement part, and the left reinforcement part is located on the left non-gold finger part, and the right reinforcement part is located on the right non-gold finger part.

[0008] In one of the embodiments, an edge of one end of the left reinforcing portion away from the middle reinforcing portion does not exceed an edge of the gold finger.

[0009] In one of the embodiments, an edge of one end of the right reinforcing portion away from the middle reinforcing portion does not exceed an edge of the gold finger.

[0010] In one embodiment, the display screen body includes an upper polarizer, an upper glass, a lower glass and a lower polarizer stacked in sequence, and the lower glass extends in a direction away from the upper glass to form a binding area.

[0011] In one of the embodiments, an IC chip is disposed on the binding area.

[0012] In one of the embodiments, the angle between the display screen FPC and the side wall of the lower glass is filled with protective glue.

[0013] A display module comprises the above-mentioned liquid crystal display screen structure and a backlight structure, wherein the backlight structure is arranged on one side surface of the display screen body, and the display screen FPC is bent to the rear of the backlight structure.

[0014] In one of the embodiments, a cover plate is further included, and the cover plate is bonded to the display screen body by optical adhesive.

[0015] Compared with the prior art, the utility model has at least the following advantages:

[0016] Compared with the conventional display screen FPC structure, the liquid crystal display screen structure and display module of the utility model are provided with an extended protrusion on one side of the display screen FPC close to the gold finger, so that the reinforcing piece can be respectively provided on the extended protrusion, the left non-gold finger part and the right non-gold finger part, so that the reinforcing piece is provided around the three sides of the gold finger, which can not only play a reinforcing role, but also can make the reinforcing piece move upward as a whole by providing the extended protrusion, so that when the display screen FPC is bent to the rear of the backlight structure, the bending starting point of the display screen FPC can be shortened, so that the size from the display screen FPC to the side wall edge of the display screen body after being bent can be shortened; in addition, by making the reinforcing piece avoid the area where the gold finger is provided, it can also be avoided that the reinforcing piece is deformed after being heated or SMT baked, thereby affecting the binding effect of the gold finger. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for use in the embodiments are briefly introduced below.

[0018] Figure 1 It is a structural schematic diagram of a conventional liquid crystal display screen structure;

[0019] Figure 2 for Figure 1 A schematic diagram of the rear view structure of the display screen FPC in the conventional liquid crystal display screen structure;

[0020] Figure 3 for Figure 1 A schematic structural diagram of a front view of a display screen FPC in a conventional liquid crystal display screen structure;

[0021] Figure 4 It is a schematic diagram of the stacking structure of the display module in one embodiment of the utility model;

[0022] Figure 5 for Figure 4 A front view structural diagram of a display module in FIG.

[0023] Figure 6 for Figure 4 A rear view structural diagram of the display screen FPC of the display module;

[0024] Figure 7 for Figure 4 A schematic diagram of the stacking structure of the display screen FPC of the display module;

[0025] Figure 8 for Figure 4 A schematic diagram of the front view structure of the display screen FPC of the display module in FIG. DETAILED DESCRIPTION

[0026] In order to facilitate the understanding of the present invention, the present invention will be described more comprehensively below with reference to the relevant drawings.

[0027] See also Figure 4 , Figure 5 , Figure 6 , Figure 7 and Figure 8 As shown, a liquid crystal display structure includes: a display body 100, a display FPC 200 and a reinforcement piece 300, wherein a binding area is arranged on the display body 100; a gold finger 210 is arranged at one end of the display FPC 200, and the display FPC 200 is bound to the binding area through the gold finger 210, and a side edge of the display FPC 200 close to the gold finger 210 extends in a direction away from the gold finger 210 to form an extended protrusion 220, and a left non-gold finger part 230 and a right non-gold finger part 240 are formed on both sides of the gold finger 210; the reinforcement piece 300 is respectively located on the extended protrusion 220, the left non-gold finger part 230 and the right non-gold finger part 240.

[0028] Please note that Figure 1 , Figure 2 and Figure 3 As shown, Figure 1 is a conventional liquid crystal display screen 20, Figure 2 and Figure 3 It is the arrangement structure of the gold finger 21 and the reinforcing member 22 of the conventional display screen FPC 20a. Figure 3 In the embodiment, one end edge of the gold finger 21 is flush with one side edge of the display FPC body, and correspondingly, Figure 2 In the embodiment, the reinforcing member 22 covers the entire surface of the position of the gold finger 21, and the size of the reinforcing member 22 is larger than that of the gold finger 21. Since the reinforcing member 22 is made of a harder material, the edge of the reinforcing member 22 is used as the starting point of the bending after the display screen FPC 20a is assembled and bent. Figure 1That is, the wider the reinforcement 22 is, the longer the position of the bending starting point A is, which will cause the bending dimension of the display screen FPC to become longer when the display screen FPC is bent to the rear of the backlight structure, that is, the distance between the bottom end of the bending area of ​​the display screen FPC and the edge of the side wall of the display screen body becomes longer, which will cause the overall size of the display module to become larger; in addition, due to the existing reinforcement structure, the reinforcements 300 thereon are all arranged at the positions where the gold fingers 210 are located, so when the reinforcement 300 is heated or SMT baked, the reinforcement 300 is prone to deformation, which will have a certain impact on the position and size of the gold fingers 210 after deformation, and further affect the binding effect of the gold fingers 210. Therefore, in the present invention, an extended protrusion 220 is formed by extending from one side of the display screen FPC 200 close to the gold finger 210 in a direction away from the gold finger 210, so that the reinforcing piece 300 can be partially set on the extended protrusion 220 later, so that the reinforcing piece 300 can be set in the non-gold finger area. In order to ensure the reinforcing effect, the reinforcing piece 300 is also set on the left non-gold finger part 230 and the right non-gold finger part 240 on the left and right sides of the gold finger 210. In this way, after the display screen FPC 200 is bound to the binding area, the overall position of the reinforcing piece 300 will move upward, and the corresponding bending starting point B of the display screen FPC 200 will be shortened, thereby shortening the size from the display screen FPC 200 to the side wall edge of the display screen body 100 after bending, thereby shortening the overall size. In addition, since the reinforcing piece 300 avoids the position of the gold finger 210 and its area is smaller than that of the conventional reinforcing structure, it can avoid deformation of the reinforcing piece 300 after heating or SMT baking, which may affect the position and size of the gold finger 210 to a certain extent, thereby affecting the binding effect of the gold finger 210.

[0029] Preferably, the reinforcing member 300 is a PI (polyimide) reinforcing member.

[0030] Specifically, the reinforcing piece 300 includes a left reinforcing portion 310, a middle reinforcing portion 320 and a right reinforcing portion 330. The middle reinforcing portion 320 is located on the extended protruding portion 220. One end of the left reinforcing portion 310 is connected to one end of the middle reinforcing portion 320, and one end of the right reinforcing portion 330 is connected to the other end of the middle reinforcing portion 320. The left reinforcing portion 310 is located on the left non-gold finger portion 230, and the right reinforcing portion 330 is located on the right non-gold finger portion 240. That is, the reinforcing piece 300 as a whole is a frame-shaped structure with an opening, and the opening end faces the inside of the display screen FPC 200. In this way, the reinforcing piece 300 can surround the gold finger 210 to ensure the reinforcement effect. At the same time, the reinforcing piece 300 can avoid the gold finger 210 to avoid the reinforcing piece 300 being deformed by heat and affecting the binding effect of the gold finger 210.

[0031] Preferably, the edge of one end of the left reinforcing portion 310 away from the middle reinforcing portion 320 does not exceed the edge of the golden finger 210. In this way, it can be avoided that the size of the left reinforcing portion 310 is further lengthened, thereby causing the bending starting point B to become longer.

[0032] Preferably, the edge of one end of the right reinforcing portion 330 away from the middle reinforcing portion 320 does not exceed the edge of the golden finger 210. In this way, it can be avoided that the size of the right reinforcing portion 330 is further lengthened, thereby causing the bending starting point B to become longer.

[0033] Specifically, the display screen body 100 includes an upper polarizer 110 , an upper glass 120 , a lower glass 130 and a lower polarizer 140 which are stacked in sequence, and the lower glass 130 extends in a direction away from the upper glass 120 to form a binding area.

[0034] Furthermore, an IC chip 131 is disposed on the binding area.

[0035] In one embodiment, the angle between the display screen FPC200 and the side wall of the lower glass 130 is filled with protective glue 400. The protective glue 400 strengthens the connection between the display screen FPC200 and the lower glass, and reduces the risk of the display screen FPC200 and the lower glass falling off during the bending process of the display screen FPC200.

[0036] A display module 10 includes the above-mentioned liquid crystal display screen structure 11 and a backlight structure 11, which is disposed on one side of the display screen body 100, and the display screen FPC 200 is bent to the rear of the backlight structure 11. The backlight structure 11 provides light source for the display of the liquid crystal display screen.

[0037] Furthermore, the display module also includes a cover plate, and the cover plate is bonded to the display screen body 100 by optical adhesive.

[0038] The above-mentioned embodiments only express several implementation methods of the utility model, and the description is relatively specific and detailed, but it cannot be understood as limiting the scope of the utility model patent. It should be pointed out that for ordinary technicians in this field, several modifications and improvements can be made without departing from the concept of the utility model, which all belong to the protection scope of the utility model. Therefore, the protection scope of the utility model patent shall be based on the attached claims.

Claims

1. A liquid crystal display screen structure, characterized in that: include: A display screen body, wherein a binding area is provided on the display screen body; A display screen FPC, wherein a gold finger is provided at one end of the display screen FPC, the display screen FPC is bound to the binding area through the gold finger, a side edge of the display screen FPC close to the gold finger extends away from the gold finger to form an extended protrusion, and a left non-gold finger portion and a right non-gold finger portion are formed on both sides of the gold finger; and A reinforcing piece is respectively located on the extended protruding portion, the left non-gold finger portion and the right non-gold finger portion.

2. The liquid crystal display structure according to claim 1, characterized in that: The reinforcing piece is a PI reinforcing piece.

3. The liquid crystal display structure according to claim 1, characterized in that: The reinforcement part includes a left reinforcement part, a middle reinforcement part and a right reinforcement part, the middle reinforcement part is located on the extended protrusion, one end of the left reinforcement part is connected to one end of the middle reinforcement part, one end of the right reinforcement part is connected to the other end of the middle reinforcement part, and the left reinforcement part is located on the left non-gold finger part, and the right reinforcement part is located on the right non-gold finger part.

4. The liquid crystal display structure according to claim 3, characterized in that: The edge of one end of the left reinforcing portion away from the middle reinforcing portion does not exceed the edge of the gold finger.

5. The liquid crystal display structure according to claim 4, characterized in that: The edge of one end of the right reinforcing portion away from the middle reinforcing portion does not exceed the edge of the gold finger.

6. The liquid crystal display structure according to any one of claims 1 to 5, characterized in that: The display screen body comprises an upper polarizer, an upper glass, a lower glass and a lower polarizer which are stacked in sequence, and the lower glass extends in a direction away from the upper glass to form a binding area.

7. The liquid crystal display structure according to claim 6, characterized in that: An IC chip is arranged on the binding area.

8. The liquid crystal display structure according to claim 6, characterized in that: The angle between the display screen FPC and the side wall of the lower glass is filled with protective glue.

9. A display module, characterized in that: The liquid crystal display structure includes any one of claims 1-8, and also includes a backlight structure, wherein the backlight structure is arranged on one side of the display body, and the display FPC is bent to the rear of the backlight structure.

10. The display module according to claim 9, characterized in that: It also includes a cover plate, and the cover plate is bonded and connected to the display screen body by optical glue.

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