KR20080045802A - Liquid crystal display module - Google Patents

Abstract

An LCD(Liquid Crystal Display) module is provided to maintain a gap between optical members, fix the ends of the optical members and prevent light leakage using a supporting member including a light absorbing material. An LCD module(1) includes an LCD panel(10), a plurality of optical films(20), a mold frame(50), and a supporting member(100). The LCD panel displays images. The plurality of optical films control light. The LCD panel is mounted in the mold frame. The supporting member is interposed between neighboring optical films. The supporting member is interposed between the LCD panel and the optical films. The supporting member is a light-blocking member including a light-absorbing material.

Description

Liquid crystal display module

Figure 1a is a plan view showing a conventional liquid crystal module.

1B is a sectional view taken along line II ′ of FIG. 1A;

2 is a plan view of a liquid crystal display module according to a first embodiment of the present invention.

3 is a cross-sectional view taken along line III-III ′ of FIG. 2;

4A and 4B are perspective views showing an embodiment of a support member according to the present invention.

5A and 5B are sectional views showing another embodiment of a liquid crystal display module according to the present invention.

<Description of the reference numerals for the main parts of the drawings>

  1: liquid crystal module 10: liquid crystal panel

 20: optical member 40: top cover

 50: mold frame 80: light source

 100: support member 110: release paper

The present invention relates to a liquid crystal display module that can prevent wrinkles of the optical member and prevent light leakage.

An electronic display is an electronic device that transmits various information to a human through vision. In other words, it can be said to be an electronic tool for exchanging information with humans through electronic devices and vision. In addition, it can be defined as an element device that plays a bridge role (interface) connecting human and electronic devices.

Representative liquid crystal display of the electronic display device is a device that can display an image by using the optical properties of the liquid crystal. The liquid crystal display may be formed by organically combining various components such as a liquid crystal panel capable of displaying an image and a backlight unit having a light source. That is, the liquid crystal display is a display device that can display an image by combining and operating the various components.

The component may cause a defect such as deformation of the component due to the shape of the component, etc. during the coupling process. The defect may cause a deterioration of the quality of an image defect in a liquid crystal display which is a display device.

Attempts have been made to minimize defects in various shapes or methods of components in order to assemble the liquid crystal display.

In particular, the liquid crystal panel for displaying an image and the optical film for increasing the efficiency of light are sensitive to the surrounding environment, and the environment for installation and storage is important.

1A is a plan view illustrating a conventional liquid crystal module, and FIG. 1B is a cross-sectional view taken along line II ′ of FIG. 1A.

Referring to FIGS. 1A and 1B, the liquid crystal module 501 may mount a liquid crystal panel 510 capable of displaying an image, a light guide plate 580 for seating the liquid crystal panel 510 and supplying light to the liquid crystal panel 510. And a mold frame 550 accommodating the liquid crystal panel 510 and the backlight unit 570. The backlight unit 570 includes a light source (not shown), a light guide plate 580 for irradiating the light of the light source forward, and a plurality of optical films 526 for controlling the light of the light guide plate 580.

The liquid crystal panel 510 may be formed by filling a liquid crystal between two opposing substrates. Both surfaces of the liquid crystal panel 510 are attached with a polarizing film 523 for polarizing light.

The mold frame 550 includes a first mounting portion 553 for mounting the liquid crystal panel 510 and a second mounting portion 556 for mounting the plurality of optical films 526.

The polarizing film 523 is attached to the surface of the liquid crystal panel 510, and the optical film 526 is disposed on the backlight unit 580 so that the second seating part 556 of the mold frame 550 is disposed. Is seated on.

In other words, the optical film 526 has a structure that can be seated is provided in the mold frame 550 is seated. However, the mold frame 550 is not provided with a structure for fixing the optical film 526. Therefore, since it is not fixed, the optical film 526 may flow on the second seating portion 566.

On the other hand, the mold frame 550 is the liquid crystal panel 510, the optical film 526 and the polarizing film 523, the liquid crystal panel (to prevent scratches, etc. that may occur due to vibration, shock, etc.) The predetermined distance G ′ may be formed between the 510 and the optical film 523.

The optical film 526 and the polarizing film 526 and the like is formed with a fine pattern for the optical function, the vibration and impact, etc. can damage the shape of the fine pattern. That is, the fine pattern may cause scratches on the optical film 526 and the polarizing film 523 due to the vibration and impact. The scratch may cause deterioration of optical functions of the optical film 526 and the polarizing film 523.

In addition, the scratch or the like may cause foreign matter to the liquid crystal module 501, and the foreign matter may cause a bad image such as white spots or black spots when the image is later displayed on the liquid crystal module 501.

On the other hand, the polarizing film 523 and the optical film 526 is sensitive to temperature, humidity and the like because of the film shape. Therefore, the polarizing film 523 and the optical film 526 has a hassle to adjust the temperature and humidity of the surrounding environment during storage.

The liquid crystal module 501 uses a lamp for the backlight unit 580 as a light source, which emits light and generates heat.

The heat may form wrinkles (wrinkle, Wrinkle) on the polarizing film 523 and the optical film 526. In this case, the heat may affect the ends of the polarizing film 523 and the optical film 526, and a phenomenon in which the end may be crying may occur.

In addition, the polarizing film 523 and the optical film 523 are used by cutting to a size corresponding to the shape of the liquid crystal module 501 from the original plate. Therefore, the optical film 526 and the polarizing film 523 may have a high surface energy due to the stretching property of the material, thereby forming a high surface energy, and remaining stress may remain on the cutting surface, thereby forming a wrinkled shape on the cutting surface.

Cutting surfaces of the optical film 526 and the polarizing film 523, that is, wrinkled shapes at the edge regions, may cause light and dark contrast of the image displayed on the liquid crystal module 501.

Therefore, it may cause a problem of generating an image defect of the liquid crystal module 501.

As described above, in forming the liquid crystal module 501, since there is no structure capable of fixing the optical film 526 having an optical function, the optical film 526 may flow due to vibration, shock, and the like. The flow may form scratches on the optical film 526 and the polarizing film 523.

In addition, since the optical film 526 has a film shape, the optical film 526 is affected by the surrounding environment such as temperature and humidity. Wrinkles, etc. may occur in the optical film 526 due to the temperature and humidity, and the wrinkles, etc., may cause an image defect by generating a contrast difference between the display images of the liquid crystal module 1.

On the other hand, the flow of the optical film 526 may generate a light leakage phenomenon leaking light provided from the backlight unit 570 between the liquid crystal panel 510 and the mold frame 550.

The present invention provides a liquid crystal display module that can prevent the phenomenon of crying and flowing of the optical member by providing a support member that can fix the end of the optical member while maintaining a gap between the optical members having an optical function The purpose is to provide.

Another object of the present invention is to provide a liquid crystal display module that can prevent light leakage caused by light leakage by using the support member as a light blocking agent that can block light.

Liquid crystal display module according to the present invention for achieving the above object is a liquid crystal panel for displaying an image; An optical film for controlling light; A mold frame for mounting the liquid crystal panel; And a support member interposed between the liquid crystal panel and the optical film.

Liquid crystal display module according to the present invention for achieving the above object is a liquid crystal panel for displaying an image; A plurality of optical films for controlling light; A mold frame for mounting the liquid crystal panel; And a support member interposed between the optical films.

On the other hand, the support member is characterized in that the light-shielding material including a light absorbing material for absorbing light.

Hereinafter, a liquid crystal display module according to embodiments of the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the following embodiments. The present invention may be embodied in various other forms without departing from the spirit of the invention. In the accompanying drawings, the dimensions of the liquid crystal panel, the optical film, the support member, the mold frame are shown in an enlarged scale than actual for clarity of the present invention. In the present invention, when the liquid crystal panel, optical film, support member, mold frame and other structures are referred to as being formed "on", "upper" or "lower", the liquid crystal panel, optical film, support member, Means that the mold frame and other structures are directly formed on or below the liquid crystal panel, optical film, support member, mold frame and other structures, or other liquid crystal panel, optical film, support member, mold frame and other structures It can be further formed on the module.

2 is a plan view of a liquid crystal module according to the present invention, and FIG. 3 is a cross-sectional view taken along line III-III 'of FIG. 2.

2 and 3, the liquid crystal display module 1 includes a liquid crystal panel 10 capable of displaying a screen, a mold frame 50 capable of mounting the liquid crystal panel 10, and the liquid crystal panel 10. A plurality of optical films 20 that can effectively control the light irradiated to the (10), and a support member that can support / fix the optical film 20 while maintaining a gap between the optical films 20 100.

The liquid crystal panel 10 may display an image and may be formed by bonding two substrates 13 and 16 facing each other. The polarizing film 25 capable of polarizing light is attached to the surface of the liquid crystal panel 10. The liquid crystal panel 10 is mounted on the mold frame 50.

The mold frame 50 forms a framework for maintaining the shape of the liquid crystal display module 1, and includes a first seating part 53 and a first seat for seating the liquid crystal panel 10. A second seating portion 56 formed with a step on the portion 53 is provided. The mold frame 50 may be provided in a shape capable of accommodating the backlight unit 70.

The backlight unit 70 includes a light source unit 80 for irradiating light and a plurality of optical films 20 for efficiently controlling the light irradiated from the light source unit 80.

The optical film 20 is disposed on the light source 80, and an end of the optical film 20 is seated on the second seat 56.

The optical film 20 includes a diffusing film capable of diffusing light, a prism film capable of condensing light, and the like. The optical film 20 is provided on the light source unit 80 to improve the efficiency of the light in order to increase the efficiency of the light may be a pattern such as irregularities on the surface of the optical film 20 is formed.

However, since the optical film 20 is seated on the mold frame 50, the optical film 20 may flow to external shocks and vibrations. The vibration and impact may cause friction between the optical film 20 made of a plurality. In addition, the vibration and impact may generate friction between the liquid crystal panel 10 and the pattern formed on the surface of the optical film 20.

The friction may cause damage to patterns provided on the optical film 20 to improve optical functions and the like. Damage to the pattern of the optical film 20 may cause an image defect of the liquid crystal display module 1 capable of displaying an image by lowering an optical function.

Therefore, the support member 100 is provided along the edge of the optical film 20 to be spaced apart from the optical film 20 by a predetermined interval (G) to prevent friction between the optical film 20 and the liquid crystal panel.

The support member 100 may be formed to have a predetermined step on the surface of the optical film 20, and thus formed to be spaced apart from the optical film 20 and the liquid crystal panel 10 by a predetermined distance (G). can do.

As a first embodiment, the support member 100 may be formed on the polarizing film 25 and the optical film 20 to form a spaced gap between the liquid crystal panel and the optical film. The support member 100 may be provided to be spaced apart by a predetermined interval between the optical films 20 using a plurality of films, which will be described later with reference to FIGS. 5A to 5C.

As such, the support member 100 may prevent friction that may occur between the optical film 20 and the liquid crystal panel 10.

In addition, it is possible to prevent the flow of the optical film 20 through the support member 100. Here, the liquid crystal module 1 may provide a top cover 40 on the mold frame 50 to protect the liquid crystal panel 10 from the edge of the liquid crystal panel 10 and external foreign matter.

The top cover 40 is fastened to the mold frame 50. The end of the optical film 20 is supported by pressing an area where the support member 100 is provided by the weight of the top cover 40 or the like. / Can be fixed.

By pressing the end of the optical film 20 to prevent the flow of the optical film 20, by supporting / fixing the end of the optical film 20 to allow the optical member 20 to have a tensile force.

Therefore, the phenomenon that the optical film 20 is wrinkled may be minimized under the influence of heat generated from the light source 80 or external heat and humidity.

On the other hand, by using the light blocking material formed of a material capable of absorbing light to the support member 100 it is possible to minimize the light leakage effect that may occur at the edge of the liquid crystal display module (1).

Therefore, the support member 100 may prevent friction between the optical film 20 and the liquid crystal panel 10, which may be generated by the flow of the optical member 20, and may be generated by the friction. It is possible to prevent an image defect of the liquid crystal display module 1, which may be caused by a decrease in optical efficiency caused by damage to the film 20.

In addition, by using the support member 100, the edge of the optical film 20 can be pressed to have a tensile force. This can minimize the phenomenon that the end of the optical film 20 is crying. In addition, the supporting member 100 may be formed of a light blocking material to prevent light leakage from the edge of the liquid crystal display module 1.

4A and 4B are perspective views showing an embodiment of a support member according to the present invention. Hereinafter, the supporting member of the present invention will be described in detail with reference to the accompanying drawings, and those skilled in the art can implement many other embodiments using the teachings of the present invention, and the present invention is an exemplary object and the following embodiments. It is not limited to this. Herein, the liquid crystal display module will be described with reference to FIGS. 2 and 3.

4A and 4B, the support member 100 may be formed on the surface of the optical member 20.

The optical film 20 may be a prism film for condensing light, a diffusion film for diffusing light, or the like. And it may be a polarizing film 25 for polarizing the light, where the polarizing film 25 and the optical film 20 will be referred to collectively as the optical film (20).

Since the optical film 20 may have a pattern for the optical function, a release paper 110 for protecting the pattern may be provided on the optical film 20.

The release paper 110 may protect the optical film 20 from scratches and the like during foreign matter and storage, and may be provided on both sides or one side of the optical film 20.

The release paper 110 may be formed on the front surface of the optical film 20, and the support member 100 may be formed by forming a cutting line in an edge region of the release paper 110.

The release paper 100 may be peeled off from the support member 100 through the cutting line. Inside the cutting line, the release paper 110 is removed to expose the surface of the optical film 20 by removing the release paper 110 later, and the outside of the cutting line is the release paper 110. It may be left as the support member 100.

Therefore, when the liquid crystal display module 1 is formed, maintaining the gap between the optical film 20 and the liquid crystal panel 10, maintaining the gap between the optical films 20, and preventing the flow of the optical film 20. You can do it.

Here, the support member 100 may be formed of the same material as the release paper 110, or may be formed of different materials.

In addition, the area to be the support member 100 may be formed of a material capable of blocking light. When the optical film 20 provided with the support member 100 is applied to the liquid crystal display module 1, which is a device that receives light from a light source and displays an image, the edge region of the image display area is leaked. It will appear relatively brighter than the surroundings. Due to light leakage in the edge region, light leakage may occur in which the entire image is relatively dark.

Thus, when the material of the support member 100 is formed of a material capable of blocking light in order to prevent light leakage in the edge region, the liquid crystal display module 1 may provide a clear image by preventing the light leakage. Will be.

5A and 5B are sectional views showing another embodiment of a liquid crystal display module according to the present invention. Herein, the liquid crystal display module including the support member and the optical film is referred to FIGS. 2 and 3.

The support member 100 may be formed on one or both surfaces of the optical member 20. Release paper 110 to protect the optical member 20 may be provided on both sides of the optical member 20 to leave the edge of the release paper to form the support member 100.

The support member 100 may adjust a gap between the optical film 20 and the liquid crystal panel 10 and a gap between the optical films 20. The gap formed by the support member 100 prevents friction between the optical films 20 or between the optical film 20 and the liquid crystal panel 10 to prevent surface defects such as scratches on the surface of the optical film 20. Can be prevented.

Referring to FIG. 5A, in order to maintain a gap between the optical film 20 and the liquid crystal panel 10, the support member 100 may be formed on the optical film 20 and the polarizing film 26, respectively. have. Here, a polarizing film 25 capable of polarizing light is attached to the surface of the liquid crystal panel 10.

The support member 100 formed along the edge of the optical film 20 is disposed at positions corresponding to each other. That is, the gap between the optical film 20 and the liquid crystal panel 10 may be formed through the thicknesses of the supporting members 100 formed on the optical film 20 and the polarizing film 26.

As such, by arranging the support member 100 of the optical film 20 and the support member 100 of the polarizing film 25 to correspond to each other, the separation distance between the optical film 20 and the liquid crystal panel may be adjusted.

Referring to FIG. 5B, the support member 100 may be provided between the optical films 20 to maintain the separation interval. In this case, the support member 100 is formed on one surface of the optical film 20 to adjust the distance between the optical film 20 to maintain the distance between the optical film 20.

As such, the distance between the optical films 20 may be adjusted through the support member 100.

Those skilled in the art through the above description will be capable of various changes and modifications without departing from the spirit of the present invention.

The liquid crystal display module according to the present invention is provided with a support member that can fix the end of the optical film while maintaining the gap between the optical films that function optically by developing the optical film crying phenomenon and flow It is possible to display clear images by preventing damage.

In addition, there is an effect of preventing light leakage caused by light leakage using the light absorbing material as the support member.

Claims (12)

A liquid crystal panel displaying an image; An optical film for controlling light; A mold frame for mounting the liquid crystal panel; And a support member interposed between the liquid crystal panel and the optical film. The method of claim 1, The optical film has a liquid crystal display module, characterized in that it has at least one. The method of claim 1, The support member is a liquid crystal display module, characterized in that provided in the edge region of the liquid crystal panel and the optical film facing each other. The method of claim 1, And the support member is formed of a release paper to protect the optical film. The method of claim 1, The support member is a liquid crystal module, characterized in that formed of a light blocking material containing a light absorbing material. The method of claim 1, And the support member has at least one layer. The method of claim 1, The liquid crystal panel First and second substrates; A liquid crystal interposed between the first and second substrates; And a polarizing film disposed on one outer surface of the second and second substrates. The method of claim 7, wherein The support member is a liquid crystal display module, characterized in that formed by a release paper to protect the polarizing film. The method of claim 7, wherein The support member is a liquid crystal display module, characterized in that provided in the edge region of the polarizing film and the optical film facing each other. A liquid crystal panel displaying an image; A plurality of optical films for controlling light; A mold frame for mounting the liquid crystal panel; Liquid crystal display module comprising a support member interposed between the optical film. The method of claim 10, The support member is a liquid crystal display module, characterized in that the support member is provided on both sides of the optical film. The method of claim 10, And the supporting member includes the supporting member on one surface of each optical film.

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