CN210803930U - Electromagnetic interference resistance's no lamp source LCM module - Google Patents

Abstract

The utility model discloses a lamp sourceless LCM module for preventing electromagnetic interference. It includes a light guide substrate and a liquid crystal display panel. The front and back of the light guide substrate are covered with a diffusion film, the side of the light guide substrate is covered with a reflective film, and the front of the light guide substrate is provided with a mounting slot. In the groove, one end of the light guide substrate is provided with a light-filling gap, the inner end of the light-filling gap is provided with an arc-shaped end, and the arc-shaped end is provided with mutually coherent arc-shaped protrusions. A conductive cloth for preventing electromagnetic interference is pasted on the back. The utility model has no lamp source design, which avoids the waste of resources caused by the need to replace the entire light source due to damage to the light source. At the same time, the wide-angle introduction of the light beam is realized by the use of the arc-shaped end of the fill light gap, and the arc-shaped protrusion is used for diffusion, so that the The supplementary light is more uniform. In addition, the FPC wiring board of the liquid crystal display panel is wrapped with conductive cloth to prevent electromagnetic interference.

Description

A light sourceless LCM module against electromagnetic interference

technical field

The utility model relates to the technical field of garden tools, in particular to a non-lamp source LCM module for preventing electromagnetic interference.

Background technique

Generally speaking, LCM refers to components that assemble liquid crystal display devices, connectors, control and driving integrated circuits, circuit boards, backlights, structural components, and the like. LCM is a high-tech basic component. As a display module of electronic products, it can be assembled with other components to form electronic products such as mobile phones and computers.

At present, the existing LCM modules generally choose to integrate a light strip in the periphery to provide backlight supply when the ultra-wave is realized, but neither the production cost nor the fill light effect is very ideal; at the same time, in the In terms of anti-electromagnetic interference, general products will set corresponding magnetic isolation components where the LCM module is placed, and the internal circuit board of the product will interfere with it, but the LCD screen of the LCM module is used to connect with the external FPC cable board , often the electromagnetic interference here will be forgotten, and then on the liquid crystal display, problems are prone to occur, affecting the working stability and display effect of the LCM.

SUMMARY OF THE INVENTION

Aiming at the above-mentioned deficiencies in the prior art, the purpose of the present invention is to provide an electromagnetic interference-proof LCM module without a lamp source.

In order to achieve the above purpose, the utility model adopts the following technical solutions:

An anti-electromagnetic interference LCM module without lamp source, comprising a light guide substrate and a liquid crystal display panel, the front and back of the light guide substrate are covered with a diffusion film, and the side surfaces of the light guide substrate are covered with a reflective film, so the An installation groove is opened on the front of the light guide substrate, and the liquid crystal display panel is installed in the installation groove in alignment. One end of the light guide substrate is provided with a light-filling gap, and an inner end of the light-filling gap is provided with an arc-shaped end. The arc-shaped ends are provided with interconnected arc-shaped protrusions, and conductive cloth for preventing electromagnetic interference is pasted on the front and/or back of the FPC wiring board of the liquid crystal display panel.

Preferably, the edge of the diffusion film extends to the light-filling gap and is flush with the opening of the light-filling gap.

Preferably, several groups of symmetrical arc-shaped ridges are arranged on the inner wall of the installation groove.

Preferably, the light guide substrate is provided with an arc-shaped notch at the notch of the installation groove.

Due to the adoption of the above-mentioned solution, the present invention can install the liquid crystal display panel in-line by opening a placement groove on the light guide substrate, which not only protects the liquid crystal display panel, but also effectively reduces the overall thickness, and does not have a self-contained light source as a whole. , so that the external light source is aligned and embedded in the fill light gap, thereby eliminating the cumbersome wiring of the light source, optimizing the thickness, and avoiding the waste of resources caused by the need to replace the entire light source due to damage to the light source. In addition, the FPC cable plate of the LCD panel is wrapped with conductive cloth, so that the FPC cable plate can also shield the external signal interference. , that is, to improve the anti-electromagnetic interference effect of the FPC cable board, thereby improving the anti-electromagnetic interference effect of the LCM module, and ensuring the working stability and display effect of the LCM module.

Description of drawings

FIG. 1 is a schematic diagram of the structural principle of an embodiment of the present invention.

FIG. 2 is a schematic structural diagram of a side surface of an embodiment of the present invention.

FIG. 3 is a schematic structural diagram of the front side of the base according to the embodiment of the present invention.

FIG. 4 is a cross-sectional view of the embodiment of the present invention in the direction of A-A.

Detailed ways

The embodiments of the present invention will be described in detail below with reference to the accompanying drawings, but the present invention can be implemented in many different ways defined and covered by the claims.

As shown in FIG. 1 to FIG. 4 , an electromagnetic interference-proof LCM module without lamp source provided in this embodiment includes a light guide substrate 1 and a liquid crystal display panel 2 . The light guide substrate 1 is a substrate made of a light guide plate. The front and back of the light guide substrate 1 are covered with a diffusing film 3, the side surface of the light guide substrate 1 is covered with a reflective film 4, the front side of the light guide substrate 1 is provided with a mounting groove 5, and the liquid crystal display panel 2 is aligned and installed in the mounting groove. 5, one end of the light guide substrate 1 is provided with a light-filling gap 6, the light-filling gap 6 is consistent with the symmetry axis of the liquid crystal display panel 2, the inner end of the light-filling gap 6 is provided with an arc-shaped end 7, and the arc-shaped end 7 is provided with a A conductive cloth 10 for preventing electromagnetic interference is pasted on the front and/or back of the FPC wiring board 9 of the liquid crystal display panel 2 with the arc-shaped protrusions 8 that are continuous with each other.

In this embodiment, the liquid crystal display panel 2 is installed in-line by opening the placement groove 5 on the light guide substrate 1, which not only protects the liquid crystal display panel 2, but also effectively reduces the overall thickness, and does not have its own light source as a whole, so that the The external light source is aligned and embedded in the fill light gap 6, thereby eliminating the cumbersome wiring of the light source, optimizing the thickness, and avoiding the waste of resources caused by the whole replacement of the light source due to damage. At the same time, the fill light gap 6 is curved. At the end 7, the wide-angle introduction of the light beam is realized, and the arc-shaped protrusion 8 is used for diffusion, so that the supplementary light is more uniform. It can also shield external signal interference, that is, improve the anti-electromagnetic interference effect of the FPC cable board, thereby improving the anti-electromagnetic interference effect of the LCM module, and ensure the working stability and display effect of the LCM module.

Further, because the supplementary light notch 6 is arranged at the edge, in order to prevent the light speed from scattering after the external light source is inserted, the edge of the diffuser film 3 of the present embodiment extends to the supplementary light notch 6 and is equal to the opening of the supplementary light notch 6, The bottom of the supplementary light gap 6 is received by the diffusion film 3, so that the light emitted by the external light source can be better utilized.

Further, when the liquid crystal display panel 2 is installed in the installation groove 5 in alignment, in order to improve stability, several groups of symmetrical arc-shaped convex strips 11 are arranged on the inner wall of the installation groove 5 in this embodiment. The arc-shaped protruding strips 11 are squeezed, so that the liquid crystal display panel 2 can be placed more stably.

Further, the light guide substrate 1 of the present embodiment is provided with an arc-shaped notch 12 at the notch of the installation slot 5 , and the liquid crystal display panel 2 is easily taken out by the technician through the arc-shaped notch 12 .

The above are only the preferred embodiments of the present utility model, and are not intended to limit the scope of the present utility model patent. Any equivalent structure or equivalent process transformation made by using the contents of the present utility model description and accompanying drawings, or directly or indirectly applied to other related The technical field of the present invention is similarly included in the scope of patent protection of the present invention.

Claims (4)

1. The utility model provides an electromagnetic interference resistance's no lamp source LCM module which characterized in that: including leaded light base plate and liquid crystal display panel, the diffusion barrier has all been laid to the positive back of leaded light base plate, the side subsides of leaded light base plate have applied the reflectance coating, the mounting groove has been seted up in the front of leaded light base plate, the liquid crystal display panel is counterpointed and is installed in the mounting groove, leaded light base plate one end is provided with the light filling breach, the medial extremity of light filling breach is provided with the arc end, the arc end is provided with the arc arch that links up each other, the electrically conductive cloth that is used for electromagnetic interference is pasted in the front and or the back of the FPC winding displacement board of liquid crystal display.

2. The electromagnetic interference preventing lamp-source-less LCM module of claim 1, wherein: the edge end of the diffusion film extends to the light supplement gap and is flush with the opening of the light supplement gap.

3. The electromagnetic interference (EMI) preventing lamp-source-less LCM module as set forth in claim 2, wherein: the inner wall of mounting groove sets up the arc sand grip of a plurality of groups mutual symmetry.

4. The electromagnetic interference (EMI) preventing lamp-source-less LCM module as set forth in claim 3, wherein: the light guide substrate is provided with an arc notch at the notch of the mounting groove.

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