Display module for improving backlight side light leakage

Abstract

The utility model discloses a display module for improving backlight side light leakage, which comprises a cover plate, a display screen and backlight, the back of the cover plate is provided with an LED indicating lamp, the LED indicating lamp is arranged at a position close to the lower side of the backlight, the backlight is provided with shading glue for shading, and the display screen is arranged on the cover plate. The shading glue is located at the position, close to the side edge of the backlight, of the LED indicator lamp, one part of the shading glue is attached to the backlight, and the other part of the shading glue is reversely folded to the back face of the backlight along the side edge of the backlight. According to the utility model, the shading glue is arranged at the position, opposite to the LED indicating lamp, of the backlight, so that the position, opposite to the LED indicating lamp, of the backlight side edge is shaded, light rays of the LED indicating lamp are prevented from being transmitted from the position, and the lighting effect of the LED indicating lamp is ensured.

Description

Technical Field

[0001] This utility model relates to the field of display module technology, and in particular to a display module that improves backlight side light leakage. Background Technology

[0002] Display modules typically consist of a cover plate, a display screen, and a backlight. With increasing competition in the consumer electronics market, many customers are incorporating LED indicator lights into their display products. These LED indicators are located on the back of the cover plate, near the display screen. As products evolve and requirements become more stringent, the glass bezel of the display screen and the adhesive application area of ​​the cover plate are becoming increasingly narrow. This results in the LED indicators being very close to the backlight. When the backlight uses a frameless design or a design combining a plastic frame and a metal frame, some light will leak through the sides of the backlight, thus affecting the display effect of the LED indicators. Utility Model Content

[0003] The purpose of this invention is to overcome the shortcomings of the prior art and provide a display module that improves backlight side light leakage.

[0004] The objective of this utility model is achieved through the following technical solution:

[0005] A display module for improving side light leakage of backlight includes: a cover plate, a display screen and a backlight. An LED indicator is provided on the back of the cover plate. The LED indicator is located near the lower side of the backlight. A light-shielding adhesive for blocking light is provided on the backlight. The light-shielding adhesive is located near the side of the LED indicator near the backlight. A portion of the light-shielding adhesive is attached to the backlight, and another portion of the light-shielding adhesive is folded back along the side of the backlight to the back of the backlight.

[0006] In one embodiment, the backlight includes a backlight source located near the lower side of the backlight, and the LED indicator is located near the backlight source.

[0007] In one embodiment, a light-shielding sheet is attached to the backlight relative to the backlight source, the light-shielding sheet is arranged along the length direction of the backlight source, and the light-shielding sheet is located on the side of the backlight facing the display screen.

[0008] In one embodiment, the light-shielding adhesive is formed by extending outward from the lower side of the light-shielding sheet, and the light-shielding adhesive and the light-shielding sheet are integrally formed. The side of the light-shielding adhesive away from the light-shielding sheet is folded back along the side of the backlight to the back of the backlight.

[0009] In one embodiment, the size of the light-shielding adhesive is larger than the size of the LED indicator light, the light-shielding adhesive is arranged along the length direction of the light-shielding sheet, and the light-shielding adhesive covers the area of ​​the LED indicator light illuminating the backlight side.

[0010] In one embodiment, the light-shielding adhesive includes a thermally conductive adhesive, a PET substrate, and an adhesive, wherein the thermally conductive adhesive is located on the side of the light-shielding adhesive facing the backlight, and the adhesive is located on the outside of the light-shielding adhesive.

[0011] In one embodiment, the thickness of the light-shielding adhesive is 0.03mm-0.1mm.

[0012] In one embodiment, a main screen FPC is attached to the display screen, one end of the main screen FPC is attached to the display screen, and the other end of the main screen FPC is bent to the back of the backlight. A backlight FPC is attached to the backlight, one end of the backlight FPC is attached to the backlight, and the other end of the backlight FPC is bent to the back of the backlight and soldered to the main screen FPC.

[0013] In one embodiment, the exit point of the backlight FPC is positioned away from the LED indicator, and the middle area between the exit point of the backlight FPC and the area soldered to the main screen FPC is inclined, with the middle area of ​​the backlight FPC avoiding the light-shielding adhesive.

[0014] In one embodiment, the main screen FPC has a clearance groove in the middle area relative to the backlight FPC, and the clearance groove avoids the cable outlet and the middle area of ​​the backlight FPC.

[0015] Compared with the prior art, the present invention has at least the following advantages:

[0016] This utility model discloses a display module that improves light leakage from the backlight side by setting a light-shielding adhesive at the position of the backlight relative to the LED indicator. The light-shielding adhesive covers the side of the backlight to block the light from the position of the backlight side relative to the LED indicator, thus preventing the light from the LED indicator from passing through and ensuring the lighting effect of the LED indicator. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.

[0018] Figure 1 A schematic diagram of the back structure of a display module for improving backlight side light leakage provided by this utility model;

[0019] Figure 2A schematic diagram of the front structure of the backlight in a display module for improving side light leakage of the backlight, provided by this utility model;

[0020] Figure 3 A schematic diagram of the structure of a display module for improving backlight side light leakage provided by this utility model after attaching a light-shielding sheet to the backlight;

[0021] Figure 4 This utility model provides a schematic diagram of the stacked structure of the light-shielding adhesive in a display module for improving light leakage on the backlight side.

[0022] Figure descriptions: 10, cover plate; 20, display screen; 21, main screen FPC; 211, clearance groove; 30, backlight; 31, backlight source; 32, backlight FPC; 40, LED indicator light; 50, light-shielding adhesive; 51, thermally conductive adhesive; 52, PET substrate; 53, colloid; 60, light-shielding sheet. Detailed Implementation

[0023] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0024] A display module for improving backlight side light leakage, as described above. Figure 1 The system includes a cover plate 10, a display screen 20, and a backlight 30. The cover plate 10 is larger than the display screen 20 and the backlight 30. The cover plate 10 covers the display screen 20, and the display screen 20 is housed within the backlight 30. The end face of the cover plate 10 is in contact with the backlight 30. An LED indicator 40 is located on the back of the cover plate 10, near the lower side of the backlight 30. Due to increasingly stringent product requirements, the glass frame of the display screen 20 and the adhesive application area of ​​the cover plate 10 are becoming narrower, resulting in the LED indicator 40 being closer to the backlight 30. Therefore, in order to prevent the light of the LED indicator 40 from shining through the side of the backlight 30, the backlight 30 is provided with a light-shielding adhesive 50 for shielding. The light-shielding adhesive 50 is located near the side of the LED indicator 40, with a part of the light-shielding adhesive 50 attached to the backlight 30 and the other part of the light-shielding adhesive 50 folded back along the side of the backlight 30 to the back of the backlight 30, so as to shield the side of the backlight 30 relative to the LED indicator 40 and prevent the light of the LED indicator 40 from shining through from this point.

[0025] Reference Figure 2 and Figure 3The backlight 30 contains a backlight source 31, which is an LED light strip composed of multiple LEDs. The backlight source 31 is located near the lower side of the backlight 30. The LED indicator 40 is located near the backlight source 31. A light shield 60 is attached to the backlight 30 relative to the backlight source 31. The light shield 60 is set along the length of the backlight source 31 and is located on the side of the backlight 30 facing the display screen 20. The light shield 60 can prevent the light from the backlight source 31 from leaking out from the edge of the display screen 20.

[0026] Furthermore, referring to Figure 3 The light-shielding adhesive 50 is formed by extending outward from the lower side of the light-shielding sheet 60. The light-shielding adhesive 50 and the light-shielding sheet 60 are integrally formed. The side of the light-shielding adhesive 50 away from the light-shielding sheet 60 is folded back along the side of the backlight 30 to the back of the backlight 30 to block the light on the side of the backlight 30 opposite to the LED indicator 40.

[0027] Furthermore, referring to Figure 1 The size of the light-shielding adhesive 50 is larger than that of the LED indicator light 40. The light-shielding adhesive 50 is set along the length of the light-shielding sheet 60, and covers the area of ​​the LED indicator light 40 that is illuminated to the side of the backlight 30. In this way, most of the light from the LED indicator light 40 will not leak out from the side of the backlight 30, thus ensuring the brightness effect of the LED indicator light 40.

[0028] Furthermore, referring to Figure 4 The light-shielding adhesive 50 includes a thermally conductive adhesive 51, a PET substrate 52, and an colloid 53. The thermally conductive adhesive 51 is located on the side of the light-shielding adhesive 50 facing the backlight 30, and the colloid 53 is located on the outer side of the light-shielding adhesive 50, serving a light-shielding function. The PET substrate 52 is made of black PET material, which has a better light-shielding effect than transparent PET material. The thermally conductive adhesive 51 is attached to the backlight 30, allowing the heat from the backlight 31 to be transferred to the back of the backlight 30 for dissipation, thus preventing the backlight 31 from overheating and affecting the display effect.

[0029] Furthermore, the thickness of the light-blocking adhesive 50 is 0.03mm-0.1mm.

[0030] Furthermore, referring to Figure 1 A main screen FPC 21 is attached to the display screen 20. One end of the main screen FPC 21 is attached to the display screen 20, and the other end of the main screen FPC 21 is bent to the back of the backlight 30. A backlight FPC 32 is attached to the backlight 30. One end of the backlight FPC 32 is attached to the backlight 30, and the other end of the backlight FPC 32 is bent to the back of the backlight 30 and soldered to the main screen FPC 21. To avoid affecting the light-blocking effect of the light-blocking adhesive 50, the exit point of the backlight FPC 32 is positioned away from the LED indicator 40.

[0031] Reference Figure 1 The area between the cable exit point of the backlight FPC32 and the area soldered to the main screen FPC21 is angled, while the area where the backlight FPC32 is soldered to the main screen FPC21 is vertical. It should be noted that a solder pad is provided at the end of the backlight FPC32 away from the cable exit point; this pad is used for soldering the backlight FPC32 to the main screen FPC21. The middle area of ​​the backlight FPC32 avoids obstructing the light-shielding adhesive 50, thus ensuring the light-shielding effect of the adhesive 50.

[0032] Furthermore, referring to Figure 1 The main screen FPC21 has a clearance groove 211 in the middle area relative to the backlight FPC32. The clearance groove 211 avoids the cable exit position and middle area of ​​the backlight FPC32. The contact position between the main screen FPC21 and the backlight FPC32 is the area where the backlight FPC32 is soldered to the main screen FPC21. The main screen FPC21 also avoids the light-shielding adhesive 50. The light-shielding adhesive 50 does not come into contact with the main screen FPC21 and the backlight FPC32 to ensure the light-shielding effect of the light-shielding adhesive 50 and the lighting effect of the LED indicator 40.

[0033] This invention provides a light-shielding adhesive 50 at the position of the backlight 30 relative to the LED indicator 40. The light-shielding adhesive 50 covers the side of the backlight 30 to block the light from the side of the backlight 30 relative to the LED indicator 40, thus preventing the light from the LED indicator 40 from passing through and ensuring the lighting effect of the LED indicator 40.

[0034] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. A display module for improving backlight side light leakage, characterized in that, include: The cover plate (10), the display screen (20), and the backlight (30) are provided. An LED indicator (40) is provided on the back of the cover plate (10). The LED indicator (40) is located on the lower side near the backlight (30). A light-shielding adhesive (50) for light shielding is provided on the backlight (30). The light-shielding adhesive (50) is located on the side of the LED indicator (40) near the backlight (30). A part of the light-shielding adhesive (50) is attached to the backlight (30), and another part of the light-shielding adhesive (50) is folded back along the side of the backlight (30) to the back of the backlight (30).

2. A display module for improving backlight side light leakage according to claim 1, characterized in that, The backlight (30) is provided with a backlight source (31), the backlight source (31) is located near the lower side of the backlight (30), and the LED indicator (40) is located near the backlight source (31).

3. A display module for improving backlight side light leakage according to claim 2, characterized in that, A light-shielding sheet (60) is attached to the backlight (30) relative to the backlight source (31). The light-shielding sheet (60) is arranged along the length direction of the backlight source (31) and is located on the side of the backlight (30) facing the display screen (20).

4. A display module for improving backlight side light leakage according to claim 3, characterized in that, The light-shielding adhesive (50) is formed by extending outward from the lower side of the light-shielding sheet (60). The light-shielding adhesive (50) and the light-shielding sheet (60) are integrally formed. The side of the light-shielding adhesive (50) away from the light-shielding sheet (60) is folded back along the side of the backlight (30) to the back of the backlight (30).

5. A display module for improving backlight side light leakage according to claim 4, characterized in that, The size of the light-shielding adhesive (50) is larger than the size of the LED indicator (40). The light-shielding adhesive (50) is arranged along the length direction of the light-shielding sheet (60). The light-shielding adhesive (50) covers the area on the side of the backlight (30) illuminated by the LED indicator (40).

6. A display module for improving backlight side light leakage according to claim 5, characterized in that, The light-shielding adhesive (50) includes a thermally conductive adhesive (51), a PET substrate (52), and an adhesive (53). The thermally conductive adhesive (51) is located on the side of the light-shielding adhesive (50) facing the backlight (30), and the adhesive (53) is located on the outside of the light-shielding adhesive (50).

7. A display module for improving backlight side light leakage according to claim 6, characterized in that, The thickness of the light-shielding adhesive (50) is 0.03mm-0.1mm.

8. A display module for improving backlight side light leakage according to claim 1, characterized in that, A main screen FPC (21) is attached to the display screen (20). One end of the main screen FPC (21) is attached to the display screen (20), and the other end of the main screen FPC (21) is bent to the back of the backlight (30). A backlight FPC (32) is attached to the backlight (30). One end of the backlight FPC (32) is attached to the backlight (30), and the other end of the backlight FPC (32) is bent to the back of the backlight (30) and soldered to the main screen FPC (21).

9. A display module for improving backlight side light leakage according to claim 8, characterized in that, The output position of the backlight FPC (32) is set away from the LED indicator (40). The middle area between the output position of the backlight FPC (32) and the area soldered to the main screen FPC (21) is inclined. The middle area of ​​the backlight FPC (32) avoids the light-shielding adhesive (50).

10. A display module for improving backlight side light leakage according to claim 9, characterized in that, The main screen FPC (21) has a clearance groove (211) in the middle area relative to the backlight FPC (32) for avoiding the cable outlet and the middle area of ​​the backlight FPC (32).

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