Three-in-one display screen

Abstract

The three-in-one display screen comprises a middle frame, a backlight assembly and a TFOG assembly, the middle frame comprises an upper side frame and a bottom plate which are connected, the upper side frame and the bottom plate form a containing space, and the TFOG assembly and the backlight assembly are arranged in the containing space in a stacked mode. And a plurality of steps for positioning the TFOG assembly and the backlight assembly are formed on the upper side frame. The backlight module has the advantages that the defects of two existing backlight modules are overcome, meanwhile, the gap between the original backlight module and the middle frame can be saved in the width direction, the problem that the width of the rubber iron is large is solved, and therefore the display width of a display screen is maximized under the condition that the width direction is fixed; and finally, the screen-to-body ratio is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of display modules, in particular to a three-in-one display screen. Background Art

[0002] The front end of the current mobile phone assembly process is to assemble the integrated touch module from the supplier with the mobile phone middle frame (usually made of metal) (i.e., use glue to fix the integrated touch module in the mobile phone middle frame), that is, the integrated touch module is used as a component of the mobile phone. The integrated touch module is composed of TFOG (which is connected by a protective cover and liquid crystal display glass through OCA) and a backlight module (composed of a glue frame, an iron frame, a light guide plate and various optical film materials, among which an iron frame may not be required due to structural design reasons). That is, the backlight module is used as a component of the integrated touch module. The backlight module is divided into two types according to whether it has an iron frame: an integrated backlight module with glue and iron and a single glue frame backlight module. The advantages of the integrated backlight module with glue and iron are as follows: 1. It is not easy to cause white spots, scratches and other abnormalities during the backlight turnover and removal process; 2. The reflective film can be placed in the iron frame, and it does not need to be bonded all around to ensure that it can shrink freely during high / low temperature experiments, thereby improving the reliability during environmental experiments; Disadvantages: 1. The thickness is relatively thick, which is not conducive to the trend of thinning of touch integrated modules and mobile phones; 2. As a material of the backlight, the iron frame increases the overall cost of the backlight. The advantages and disadvantages of the single glue frame backlight are opposite to those of the integrated backlight with glue and iron. Therefore, the two backlights with different structures result in the two integrated touch modules and the middle frame assembly being unable to complement each other. In addition, in the prior art, when the integrated touch module is assembled to the middle frame of the mobile phone, in order to avoid structural interference, it is usually necessary to reserve an assembly gap during the design. Considering that the molding width of the backlight rubber frame and the thickness of the iron frame all increase the ineffective area of ​​the mobile phone (the area outside the display area), the size of the module display area cannot be maximized when the size of the mobile phone is fixed.

[0003] Therefore, the prior art has defects and needs to be improved. Utility Model Content

[0004] The purpose of the utility model is to overcome some deficiencies of the prior art and provide a three-in-one display screen.

[0005] The technical solution of the utility model is as follows: The utility model provides a three-in-one display screen, including: a middle frame, a backlight assembly, and a TFOG assembly. The middle frame includes an upper side frame and a bottom plate connected to each other, the upper side frame and the bottom plate form a accommodating space, the TFOG assembly and the backlight assembly are stacked in the accommodating space, and a plurality of steps for positioning the TFOG assembly and the backlight assembly are formed on the upper side frame.

[0006] Furthermore, the backlight assembly includes: a backlight FPC, a light-shielding glue, and an upper light-enhancing film, a lower light-enhancing film, a diffusion film, a light guide plate, and a reflective film stacked from top to bottom, the upper side frame is formed with a first step corresponding to the reflective film, the upper side frame is formed with a second step corresponding to the light guide plate, the upper side frame is formed with a third step corresponding to the upper light-enhancing film, the lower light-enhancing film and the diffusion film, the light-shielding glue is attached to the upper light-enhancing film and the third step, and the middle frame is formed with a hole for accommodating the backlight FPC.

[0007] Furthermore, the TFOG assembly includes: a module FPC, a liquid crystal glass and a cover plate, the cover plate is arranged on the upper layer of the liquid crystal glass by optical glue, the module FPC is bound and connected to the liquid crystal glass, the upper side frame forms a fourth step corresponding to the liquid crystal glass, and the middle frame forms a hole for accommodating the module FPC.

[0008] Furthermore, the middle frame further comprises a lower side frame connected to the bottom plate, and the lower side frame is located on a side of the bottom plate away from the upper side frame.

[0009] By adopting the above scheme, the beneficial effects of the utility model are:

[0010] 1. The middle frame of the mobile phone replaces the backlight iron frame, which reduces the overall cost of the mobile phone and also reduces the total thickness of the mobile phone;

[0011] 2. The backlight assembly is completed at the front end of the mobile phone assembly, and a separate backlight component is no longer required, thus avoiding the defects caused by the turnover and removal and turnover process of the backlight;

[0012] 3. Improved the reliability of environmental experiment testing;

[0013] 4. While avoiding the shortcomings of the two existing backlight modules, it can also save the gap between the original backlight module and the middle frame in the width direction and solve the problem of wide width of the glue iron, thereby maximizing the display width of the display screen when the width direction is fixed, and ultimately increasing the screen-to-body ratio. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 The structure of an embodiment of the utility model is shown in FIG. Figure 1 .

[0015] Figure 2 The structure of an embodiment of the utility model is shown in FIG. Figure 2 DETAILED DESCRIPTION

[0016] The present invention is described in detail below in conjunction with the accompanying drawings and specific embodiments.

[0017] Please refer to Figure 1 and Figure 2 The utility model provides a three-in-one display screen, comprising: a middle frame 1, a backlight assembly 2, and a TFOG assembly 3. The middle frame 1 comprises an upper side frame 12 and a bottom plate 11 connected to each other. The upper side frame 12 and the bottom plate 11 form a receiving space. The TFOG assembly 3 and the backlight assembly 2 are stacked in the receiving space. Steps 121, 122, 123, and 124 for positioning the TFOG assembly 3 and the backlight assembly 2 are formed on the upper side frame 12.

[0018] Specifically, the backlight assembly 2 includes: a backlight FPC, a light-shielding glue 26, and an upper light-enhancing film 25, a lower light-enhancing film 24, a diffusion film 23, a light guide plate 22, and a reflective film 21 stacked from top to bottom. The upper side frame 12 is formed with a first step 121 corresponding to the reflective film 21, the upper side frame 12 is formed with a second step 122 corresponding to the light guide plate 22, and the upper side frame 12 is formed with a third step 123 corresponding to the upper light-enhancing film 25, the lower light-enhancing film 24 and the diffusion film 23. The light-shielding glue 26 is attached to the upper light-enhancing film 25 and the third step 123, and a hole for perforating the backlight FPC is formed on the middle frame 1.

[0019] Furthermore, the TFOG component 3 includes: a module FPC, a liquid crystal glass 31 and a cover plate 32, the cover plate 32 is arranged on the upper layer of the liquid crystal glass 31 by optical glue, the module FPC is bound and connected to the liquid crystal glass 31, the upper side frame 12 is formed with a fourth step 124 corresponding to the liquid crystal glass 31, and the middle frame 1 is formed with a hole for perforating the module FPC.

[0020] Furthermore, the middle frame 1 also includes a lower side frame 13 connected to the bottom plate 11, and the lower side frame 13 is located on the side of the bottom plate 11 away from the upper side frame 12. The lower side frame 13 encloses a space for accommodating components such as a motherboard and a battery of a mobile phone.

[0021] In this solution, when assembling the display screen, the reflective film 21 is placed in the middle frame 1, the backlight FPC is inserted into the backlight FPC hole of the middle frame 1, the light guide plate 22, the diffusion film 23, the lower light-enhancing 24, and the upper light-enhancing 25 are placed in the middle frame 1 in sequence, and then the light-shielding glue 26 is attached, and then the TFOG component 3 module FPC is inserted into the corresponding hole of the middle frame 1, and finally the TFOG component 3 and the middle frame 1 are fixed by glue.

[0022] In summary, the beneficial effects of this solution are: 1. The mobile phone middle frame replaces the backlight iron frame, which reduces the overall cost of the mobile phone and also reduces the total thickness of the mobile phone;

[0023] 2. The backlight assembly is completed at the front end of the mobile phone assembly, and a separate backlight component is no longer required, thus avoiding the defects caused by the turnover and removal and turnover process of the backlight;

[0024] 3. Improved the reliability of environmental experiment testing;

[0025] 4. While avoiding the shortcomings of the two existing backlight modules, it can also save the gap between the original backlight module and the middle frame in the width direction and solve the problem of wide width of the glue iron, thereby maximizing the display width of the display screen when the width direction is fixed, and ultimately increasing the screen-to-body ratio.

[0026] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A three-in-one display screen, characterized in that: include: A middle frame, a backlight assembly, and a TFOG assembly. The middle frame includes an upper side frame and a bottom plate connected to each other. The upper side frame and the bottom plate form a receiving space. The TFOG assembly and the backlight assembly are stacked in the receiving space. A plurality of steps for positioning the TFOG assembly and the backlight assembly are formed on the upper side frame.

2. The three-in-one display screen according to claim 1, characterized in that: The backlight assembly includes: a backlight FPC, a light-shielding glue, and an upper light-enhancing film, a lower light-enhancing film, a diffusion film, a light guide plate, and a reflective film stacked from top to bottom. The upper side frame is formed with a first step corresponding to the reflective film, the upper side frame is formed with a second step corresponding to the light guide plate, and the upper side frame is formed with a third step corresponding to the upper light-enhancing film, the lower light-enhancing film, and the diffusion film. The light-shielding glue is attached to the upper light-enhancing film and the third step, and the middle frame is formed with a hole for accommodating the backlight FPC.

3. The three-in-one display screen according to claim 1 or 2, characterized in that: The TFOG assembly includes: a module FPC, a liquid crystal glass and a cover plate, the cover plate is arranged on the upper layer of the liquid crystal glass by optical glue, the module FPC is bound and connected to the liquid crystal glass, the upper side frame is formed with a fourth step corresponding to the liquid crystal glass, and the middle frame is formed with a hole for accommodating the module FPC.

4. The three-in-one display screen according to claim 1 or 2, characterized in that: The middle frame further comprises a lower side frame connected to the bottom plate, wherein the lower side frame is located at a side of the bottom plate away from the upper side frame.

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