CN207421963U - A kind of display module of light leakage - Google Patents

Abstract

The utility model provides a light-leakage-proof display module, which comprises a protective film, a backlight source, and a glass cover plate arranged sequentially from bottom to top, and the protective film is attached to the bottom wall of the backlight source and its area is smaller than that of the bottom wall of the backlight source. Area; the left side wall and the bottom wall, the right side wall and the bottom wall of the backlight are respectively provided with a light-shielding rubber strip, and the light-shielding glue strip includes a first shielding portion positioned on the bottom wall of the backlight and a first shielding portion positioned on the left side of the backlight The second light-shielding portion on the wall or the right side wall, there is a gap between the edge of the first shielding portion near the side of the protective film and the edge of the protective film, the width of the second light-shielding portion is the width of the backlight. The light-shielding rubber strip covers the bottom wall and the side wall of the backlight at the same time, which can effectively avoid the light leakage problem caused by the upward displacement of the light-shielding rubber strip. At the same time, there is a certain gap between the edge of the protective film and the edge of the first shielding part. In the process of tearing off the protective film, the first shielding part will not be brought up, and at the same time, the first shielding part can also protect the bottom wall of the backlight source.

Description

A light-leakage-proof display module

technical field

The utility model relates to the technical field of displays, in particular to a display module for preventing light leakage.

Background technique

Existing display modules generally include a display panel, that is, glass, and a backlight that provides a light source for the glass. During the production and processing of the display module, in order to prevent the backlight from being scratched, a sticker is generally attached to the bottom of the backlight. layer of protective film. The area of the protective film is the same as that of the bottom of the backlight. In the subsequent manufacturing process, it is necessary to apply light-shielding tape to the side wall of the backlight to avoid light leakage of the display module. However, in the process of attaching Since the width of the shading adhesive strip is equal to the width of the side wall of the backlight, it is easy to be displaced when it is attached. During the process of protecting the film, the protective film will bring up the shading adhesive strip, and the edge of the shading adhesive needs to be smoothed again, which increases the process; when the shading adhesive strip moves upward, there will be no shading adhesive at the lower end of the side wall of the backlight At the same time, because the LED light is located at the lower end of the side wall of the backlight, it will cause obvious light leakage in the display module. The assembled display module also has a higher risk of light leakage.

Utility model content

The utility model provides a light-leakage-proof display module. The light-shielding rubber strip in the display module has fewer attachment procedures, less difficulty in attachment, good light-shielding effect, and can effectively reduce the risk of light leakage of the display module.

The technical solution adopted by the utility model is a light leakage-proof display module, which is characterized in that it includes a protective film, a backlight source, and a glass cover plate arranged sequentially from bottom to top, and the protective film is attached to the backlight On the bottom wall and its area is smaller than the area of the bottom wall of the backlight; on the left side wall and the bottom wall, the right side wall and the bottom wall of the backlight are respectively provided with shading adhesive strips, and the described shading adhesive strips include The first shading portion on the bottom wall of the backlight and the second shading portion located on the left side wall or the right side wall of the backlight, the edge of the first shading portion close to the side of the protective film and the protective film There is a gap between the edges, the width of the second light-shielding part and the width of the backlight.

After adopting the above technical scheme, the utility model has the following advantages compared with the prior art:

In the utility model, the light-shielding rubber strip is simultaneously shielded on the bottom wall and the side wall of the backlight source, which can effectively avoid the light leakage problem caused by the upward displacement of the light-shielding rubber strip, and at the same time, the edge of the protective film and the edge of the first shielding part There is a certain gap, so when the shading tape moves downward, it is easy and difficult to adhere to the protective film. In the process of tearing off the protective film, there is no need to perform secondary attachment, and the attachment process is reduced. At the same time, the first The shielding part can also be used to protect the backlight from being scratched at the bottom.

As an improvement, the first shielding part and the second shielding part are perpendicular to each other, which is convenient for sticking.

As an improvement, the gap ranges from 2mm to 5mm. If the gap is too small, the protective film will easily stick. If the gap is too large, the backlight will be scratched. After verifying that the above distance range is the most suitable, the protective film will be removed later. At this time, the protective film will not bring up the first shielding part, so there is no need for secondary attachment, and the process is reduced.

As an improvement, one end of the second light-shielding part extends to the front side wall of the backlight to cover the end of the front side wall, preventing the front side wall of the backlight from colliding with the left side wall or the right side wall. Light leakage occurs at the corners formed by the walls, and at the same time, it can prevent the light-shielding adhesive strips on the left or right side walls from falling off.

As an improvement, the first shading part and the second shading part are integrally formed, which is convenient for processing and attaching the shading adhesive strip.

Description of drawings

Figure 1 is a cross-sectional view of the utility model

Figure 2 is a structural schematic diagram of the backlight with the bottom wall in an upward state

As shown in the figure, 1. protective film, 2. backlight source, 21. bottom wall, 22. left side wall, 23. right side wall, 24. front side wall, 3. glass cover plate, 4. shading rubber strip, 41. The first shielding part. 42. The second shielding part. 5. The gap. 6. The FPCA board.

Detailed ways

As shown in Figures 1 and 2, a light leakage-proof display module includes a protective film 1, a backlight 2, and a glass cover 3 arranged sequentially from bottom to top, and the protective film 1 is attached to the bottom wall 21 of the backlight. And its area is less than the bottom wall area of backlight; On the left side wall 22 of backlight 2 and bottom wall 21, the right side wall 23 and bottom wall 21, be respectively provided with shading rubber strip 4, shading rubber strip 4 includes the The first shading part 41 on the bottom wall 21 of the backlight and the second shading part 42 on the left side wall 22 or the right side wall 23 of the backlight, the edge of the first shading part 41 near the side of the protective film 1 and the protective film 1 There is a gap 5 between the edges, the range of the gap 5 is 2 mm to 5 mm, and the width of the second light shielding part is equal to the width of the backlight source. There is also a handle on the protective film, which is convenient for tearing off the protective film in the subsequent process. One end of the second light shielding portion 42 extends toward the front side wall 24 of the backlight and covers the end of the front side wall 24 . The first shading part 41 and the second shading part 42 are integrally formed, and the first shading part 41 and the second shading part 42 are arranged perpendicular to each other on the backlight 2 , and the backlight is also provided with a flexible circuit board, that is, an FPCA board 6 .

As shown in FIG. 2 , when the display module is placed on the bottom wall of the backlight, the FPCA board is folded to the underside of the backlight, and the top view of the light-shielding strip 4 is an inverted "L" shape. The utility model has a simple structure, and the shading rubber strip can not only block the light at the intersection of the left side wall, the right side wall, the left side wall and the front side wall, and the right side wall and the front side wall of the backlight, but also ensure that the protective film can be easily torn off. Under the premise of protecting the backlight from being scratched, the light-shielding adhesive strip of the present invention has fewer attachment procedures, lower attachment difficulty, good light leakage prevention effect, high production efficiency and good quality of the display module.

The above embodiments are only used to illustrate the technical solution of the present utility model, rather than to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that the technical solutions described in the foregoing embodiments can still be modified, or equivalent replacements can be made to each part of the technical features, For example, the first shading part and the second shading part are mutually independent parts and can be attached separately, and these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiment of the present invention.

Claims (5)

1. A light-leakage-proof display module, characterized in that it comprises a protective film (1), a backlight source (2), and a glass cover (3) arranged sequentially from bottom to top, and the protective film (1) is attached On the bottom wall (21) of the backlight (2) and its area is smaller than the bottom wall (21) area of the backlight; on the left side wall (22) and bottom wall (21) and right side wall of the backlight (23) and the bottom wall (21) are respectively provided with a light-shielding rubber strip (4), and the described light-shielding rubber strip (4) includes a first shielding portion (41) on the bottom wall (21) of the backlight and a The second shading part (42) on the left side wall (22) or the right side wall (23) of the backlight source, the edge of the first shading part (41) close to the side of the protective film (1) and the said There is a gap (5) between the edges of the protective film (1), the width of the second light-shielding part and the width of the backlight. 2. The light-leakage-proof display module according to claim 1, characterized in that, the first shielding portion (41) and the second light shielding portion (42) are perpendicular to each other. 3. The light-leakage-proof display module according to claim 1, characterized in that, the range of the gap (5) is 2mm-5mm. 4. The light-leakage-proof display module according to claim 1, characterized in that one end of the second light-shielding portion (42) extends to cover the front side wall (24) of the backlight At the end of the front side wall (24). 5. The light-leakage-proof display module according to claim 1, characterized in that, the first shielding portion (41) and the second shielding portion (42) are integrally formed.