Backlight structure with rubber-iron integrated frame and touch display module

Abstract

The utility model discloses a backlight structure and a touch control display module with a rubber-iron integrated frame, which comprises the rubber-iron integrated frame and a backlight optical element, the rubber-iron integrated frame is provided with an iron frame and a rubber frame, the rubber frame is arranged around the iron frame, an accommodating cavity is formed on the rubber-iron integrated frame, the lower end of the iron frame is bent to form a first bent part, and the lower end of the rubber frame is provided with a second bent part. The first bending part is bent and recessed towards the direction of the accommodating cavity, so that a first iron frame clearance area is formed at the lower end of the iron frame, and a short-circuit-preventing plastic part is arranged on the first iron frame clearance area; the backlight optical element is contained in the containing cavity. Therefore, the short circuit prevention plastic part is arranged on the first iron frame clearance area, so that the problem of short circuit caused by contact between the iron frame of the plastic-iron integrated frame and the machine shell can be avoided, meanwhile, a bending structure is adopted on the iron frame, and plastic filling is adopted, so that the plastic frame and the iron frame can be better combined, and the strength of the whole plastic-iron integrated frame can be further improved.

Description

Technical Field

[0001] The utility model relates to the field of display module production and manufacturing, in particular to a backlight structure with a rubber-iron integrated frame and a touch display module. Background Art

[0002] The backlight structure is one of the important components in the touch display module. It provides light source for the touch display module. At present, the commonly used backlight structure is a glue-iron integrated frame, which improves the strength of the product. However, the use of a glue-iron integrated frame will have the following problems: Figure 1 As shown, the entire back side and the lower end of the existing backlight structure are iron frames. After the customer assembles the whole machine, the iron frame area at the lower end of the backlight is exposed (see Figure 1 and Figure 2 A) will contact with the casing and short-circuit, affecting the normal use of the product. Utility Model Content

[0003] The purpose of the utility model is to overcome the deficiencies in the prior art and provide a backlight structure and a touch display module with a rubber-iron integrated frame to solve the problem of short circuit between the lower iron frame part of the rubber-iron integrated frame and the casing.

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

[0005] A backlight structure with an integrated iron-rubber frame comprises: an integrated iron-rubber frame and a backlight optical element, wherein the integrated iron-rubber frame comprises an iron frame and a rubber frame, wherein the rubber frame is arranged around the four sides of the iron frame, wherein a receiving cavity is formed on the integrated iron-rubber frame, wherein the lower end of the iron frame is bent to form a first bent portion, wherein the first bent portion is bent inwardly toward the direction of the receiving cavity so that a first iron frame avoidance area is formed at the lower end of the iron frame, wherein an anti-short circuit plastic portion is arranged on the first iron frame avoidance area; and the backlight optical element is accommodated in the receiving cavity.

[0006] In one of the embodiments, glue holes are provided on the four sides of the glue-iron integrated frame.

[0007] In one of the embodiments, a second bending portion is provided at the upper end of the iron frame, and the second bending portion is bent inwardly toward the accommodating cavity to form a second iron frame air avoidance area at the upper end of the iron frame, and a plastic filling portion is provided on the second iron frame air avoidance area, and the second bending portion corresponds to the area of ​​the IR hole of the touch display module.

[0008] In one of the embodiments, an IR hole light shielding gasket is further included, wherein the IR hole light shielding gasket is partially attached to the upper end of the rubber-iron integrated frame, and the other end of the IR hole light shielding gasket extends in a direction away from the rubber-iron integrated frame.

[0009] In one embodiment, the backlight optical element includes an upper brightness enhancement film, a lower brightness enhancement film, a diffusion film, a light guide plate and a reflective film which are stacked in sequence, and the reflective film is located on a side close to the iron frame.

[0010] In one of the embodiments, it also includes a light-shielding rubber pad, and the four sides of the light-shielding rubber pad are attached to the rubber-iron integrated frame.

[0011] In one embodiment, the shading pad is a double-sided adhesive black foam.

[0012] In one of the embodiments, it further includes a display screen and a cover plate, and the cover plate, the display screen and the backlight structure are stacked in sequence.

[0013] In one embodiment, the display screen includes an upper polarizer, an upper glass, a lower glass and a lower polarizer, and the display screen is bonded to the cover plate by optical glue.

[0014] In one embodiment, the cover plate is a glass cover plate.

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

[0016] The utility model provides a backlight structure and a touch display module with a rubber-iron integrated frame by arranging a first bending portion at an area at the lower end of the iron frame of the rubber-iron integrated frame that is easily in contact with a casing and causes a short circuit, and by making the first bending portion bend inwardly toward a direction close to the accommodating cavity, so that a first iron frame avoidance area is formed at the lower end of the iron frame, and then an anti-short-circuit plastic portion is arranged on the first iron frame avoidance area. Since the plastic is insulated, the problem of short circuit caused by contact with the casing can be avoided. At the same time, a bending structure is adopted on the iron frame and plastic filling is adopted, so that the rubber frame and the iron frame can be better combined, thereby further improving the strength of the overall rubber-iron integrated frame. 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 A schematic diagram of the stacking structure of an existing backlight structure;

[0019] Figure 2 for Figure 1 A schematic diagram of a back-view structure of an existing backlight structure;

[0020] Figure 3 It is a schematic diagram of the stacking structure of the backlight structure with the integrated frame of rubber and iron in one embodiment of the utility model;

[0021] Figure 4 for Figure 3 A schematic diagram of a back view structure of a backlight structure with a rubber-iron integrated frame;

[0022] Figure 5 for Figure 4 A partial side view structural diagram of a backlight structure having a plastic-iron integrated frame at C;

[0023] Figure 6 This is a schematic diagram of the stacking structure of the touch display module in one embodiment of the utility model;

[0024] Figure 7 for Figure 6 A schematic diagram of the front view structure of the touch display module. DETAILED DESCRIPTION

[0025] 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.

[0026] See also Figure 6 and Figure 7 As shown, a touch display module 10 includes a display screen 11, a cover plate 12 and a backlight structure 13, and the cover plate 12, the display screen 11 and the backlight structure 13 are stacked in sequence.

[0027] Furthermore, the display screen 11 includes an upper polarizer 11a, an upper glass 11b, a lower glass 11c and a lower polarizer 11d, and the display screen 11 is bonded to the cover plate 12 by optical adhesive. Preferably, the cover plate 12 is a glass cover plate.

[0028] See also Figure 3 , Figure 4 and Figure 5 As shown, a backlight structure 13 with a rubber-iron integrated frame 100 includes: a rubber-iron integrated frame 100 and a backlight optical element 200, the rubber-iron integrated frame 100 has an iron frame 110 and a rubber frame 120, the rubber frame 120 is arranged around the four sides of the iron frame 110, and a receiving cavity is formed on the rubber-iron integrated frame 100, the lower end of the iron frame 110 is bent to form a first bending portion 111, the first bending portion 111 is bent inwardly toward the direction of the receiving cavity, so that the lower end of the iron frame 110 forms a first iron frame avoidance area, and an anti-short circuit plastic portion 121 is arranged on the first iron frame avoidance area; the backlight optical element 200 is accommodated in the receiving cavity.

[0029] It should be noted that, by setting the first bending portion 111 in the area where the lower end of the iron frame of the rubber-iron integrated frame 100 is easy to contact with the housing and short-circuit, the first bending portion 111 is bent and concave in the direction close to the accommodating cavity, so that the lower end of the iron frame 110 forms a first iron frame avoidance area, and then by setting the anti-short circuit plastic part 121 on the first iron frame avoidance area, due to the plastic insulation, it can avoid the problem of short circuit in contact with the housing. At the same time, the bending structure and plastic filling on the iron frame 110 can better combine the rubber frame with the iron frame, thereby further improving the strength of the overall rubber-iron integrated frame 100. In addition, the anti-short circuit plastic part 121 and the rubber frame 120 are injection molded at one time.

[0030] For further information, see Figure 2 As shown, glue holes 112 are provided around the four sides of the glue-iron integrated frame 100. Generally, the glue-iron integrated frame 100 needs to be provided with glue holes 112 on the back iron frame 110, and the glue holes 112 ensure the connection strength between the glue frame 120 and the iron frame 110.

[0031] Furthermore, since the backlight source will be emitted from the position of the glue hole 112, affecting the use of the IR hole at the upper end of the touch display module, in order to eliminate the glue hole 112 on the area corresponding to the IR hole, in one embodiment, the upper end of the iron frame 110 is provided with a second bent portion 113, and the second bent portion 113 is bent and concave in the direction of the accommodating cavity, so that the upper end of the iron frame 110 forms a second iron frame avoidance area, and the second iron frame avoidance area is provided with a plastic filling portion 122, and the second bent portion 113 corresponds to the IR hole 12a of the touch display module 10 (the position of the IR hole can be referred to Figure 7 ) area, so that a second iron frame avoidance area is formed after bending, and then filled with plastic, so that the glue frame 120 can be better combined with the iron frame 110 to prevent falling off. At the same time, there is no need to set the glue hole 112 in this area, so that the light emitted by the backlight can be blocked by the backlight iron frame 110 inside the backlight iron frame 110, thereby preventing the light from affecting the use of the IR (infrared) hole at the upper end of the touch display module.

[0032] In one embodiment, the backlight structure with the integrated rubber-iron frame 100 further includes an IR hole light shielding gasket 300, which is partially attached to the upper end of the integrated rubber-iron frame 100, and the other end of the IR hole light shielding gasket 300 extends in a direction away from the integrated rubber-iron frame 100. After actual assembly, the other end of the IR hole light shielding gasket 300 extends in a direction away from the integrated rubber-iron frame 100 to the area of ​​the cover plate, so that the IR hole light shielding gasket 300 blocks the light emitted by the backlight source and the display screen to prevent the light from affecting the IR hole 12a. For example, the IR hole light shielding gasket 300 is a PET (polyester) substrate, which can be fixed to the top of the integrated rubber-iron frame 100 by gluing.

[0033] It should also be noted that, since the existing touch display module needs to attach the IR hole shading gasket 300 at the position corresponding to the IR hole 12a, in order to ensure the accuracy of the attachment position, it is necessary to add an indentation line B on the iron frame 110 (see Figure 2 However, adding the indentation line B requires adding a work station, which will also affect the flatness of the backlight structure. The utility model sets a second bending portion in the IR hole area to form a second iron frame avoidance area. The length of the second iron frame avoidance area is the same as the length of the IR hole shading gasket. The second iron frame avoidance area can be used as an attachment alignment identification mark, so that the IR hole shading gasket 300 can be accurately attached without adding an indentation line.

[0034] See also Figure 3 As shown, the backlight optical element 200 includes an upper brightness enhancement film 210, a lower brightness enhancement film 220, a diffusion film 230, a light guide plate 240 and a reflective film 250 stacked in sequence, and the reflective film 250 is located on a side close to the iron frame 110. Through the above optical elements, the light emitted by the backlight can be made more uniform to ensure the display effect.

[0035] In one embodiment, the backlight structure with the integrated iron-glue frame 100 further includes a light shielding rubber pad 400, and the four sides of the light shielding rubber pad 400 are attached to the integrated iron-glue frame 100. After the backlight is bonded and connected with other components of the touch display module, the light shielding rubber pad 400 plays a role of shielding to avoid light leakage. For example, the light shielding rubber pad is a black foam double-sided adhesive, which has the best light shielding effect.

[0036] 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 backlight structure with a plastic-iron integrated frame, characterized in that: include: An integrated iron-rubber frame, the integrated iron-rubber frame comprising an iron frame and a rubber frame, the rubber frame being arranged around the four sides of the iron frame, the integrated iron-rubber frame being formed with a receiving cavity, the lower end of the iron frame being bent to form a first bent portion, the first bent portion being bent inwardly toward the receiving cavity so that the lower end of the iron frame forms a first iron frame avoidance area, the first iron frame avoidance area being provided with an anti-short circuit plastic portion; and A backlight optical element is accommodated in the accommodating cavity.

2. The backlight structure with a rubber-iron integrated frame according to claim 1, characterized in that: The four peripheries of the glue-iron integrated frame are provided with glue pulling holes.

3. The backlight structure with a rubber-iron integrated frame according to claim 1, characterized in that: A second bending portion is provided at the upper end of the iron frame, and the second bending portion is bent inwardly toward the accommodating cavity to form a second iron frame avoidance area at the upper end of the iron frame. A plastic filling portion is provided on the second iron frame avoidance area, and the second bending portion corresponds to the area of ​​the IR hole of the touch display module.

4. The backlight structure with a rubber-iron integrated frame according to claim 1, characterized in that: It also includes an IR hole light shielding gasket, which is partially attached to the upper end of the rubber-iron integrated frame, and the other end of the IR hole light shielding gasket extends in a direction away from the rubber-iron integrated frame.

5. The backlight structure with a rubber-iron integrated frame according to claim 1, characterized in that: The backlight optical element comprises an upper brightness enhancement film, a lower brightness enhancement film, a diffusion film, a light guide plate and a reflective film which are stacked in sequence, and the reflective film is located on a side close to the iron frame.

6. The backlight structure with a rubber-iron integrated frame according to claim 1, characterized in that: It also includes a light-shielding rubber pad, and the four sides of the light-shielding rubber pad are attached to the rubber-iron integrated frame.

7. The backlight structure with a rubber-iron integrated frame according to claim 6, characterized in that: The shading rubber pad is made of black foam with double-sided adhesive.

8. A touch display module, comprising the backlight structure with a plastic-iron integrated frame as claimed in any one of claims 1 to 7, characterized in that: It also includes a display screen and a cover plate, wherein the cover plate, the display screen and the backlight structure are stacked in sequence.

9. The touch display module according to claim 8, characterized in that: The display screen comprises an upper polarizer, an upper glass, a lower glass and a lower polarizer, and the display screen is bonded and connected to the cover plate through optical adhesive.

10. The touch display module according to claim 8, characterized in that: The cover plate is a glass cover plate.

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