KR100870517B1 - Liquid crystal display - Google Patents

Abstract

The present invention relates to a liquid crystal display device capable of firmly fixing a large liquid crystal display module and a system.

The present invention provides a liquid crystal panel in which data lines and gate lines are arranged in a matrix form, and a plurality of data tape carrier packages mounted to the liquid crystal panel and mounted with a data drive integrated circuit for supplying driving signals to the data lines. And a plurality of gate tape carrier packages attached to the liquid crystal panel and mounted with a gate drive integrated circuit for supplying driving signals to the gate lines, a frame for supporting the liquid crystal panel, and an edge of the liquid crystal panel. And a case top for surrounding the frame, a plurality of first upper fastening portions formed on sidewalls of the frame facing the data tape carrier package, and a side top of the case top so as to correspond to the first upper fastening portions. A second upper fastening portion is formed, and the gate tape carrier package A plurality of first left fastening portions formed on sidewalls of the frame opposite to each other; a second left fastening portion formed on sidewalls of the case top to correspond to the first left fastening portions; and the gate tape carrier package facing the gate tape carrier packages. A plurality of first right fastening portions formed on opposite sidewalls of the side wall of the frame, and a second right fastening portion formed on sidewalls of the case top to correspond to the first right fastening portions, wherein the first upper fastening portion And projections protruding between the plurality of data tape carrier packages from the sidewall of the frame toward the second upper fastening portion, and grooves formed in the projections.

According to this configuration, the present invention uses the side mounting method to fix the side of the cover case facing the gate TCP and the side of the case top, and the top side of the cover case facing the data TCP and the upper side of the case top. Therefore, even if the weight of the liquid crystal display module increases due to the large screen of the liquid crystal display module, it is possible to firmly fix the liquid crystal display module and the system.

Description

Liquid Crystal Display {LIQUID CRYSTAL DISPLAY}             

1 is an exploded perspective view showing a conventional liquid crystal display device.

FIG. 2 is a cross-sectional view of a state in which the liquid crystal display shown in FIG. 1 is mounted on a cover case of a notebook personal computer, etc., cut along the line A-A '.

3 is a plan view showing a conventional side mounting method.

4 is an exploded perspective view illustrating a liquid crystal display according to an exemplary embodiment of the present invention.

5 is a plan view showing a side mounting method according to an embodiment of the present invention.

FIG. 6 shows the support main and data tape carrier packages shown in FIG. 5; FIG.

FIG. 7A is a cross-sectional view illustrating side mounting of a cover case and a case top facing the gate TCP shown in FIG. 5; FIG.

FIG. 7B is a cross-sectional view illustrating side mounting of a cover case and a case top facing the data TCP shown in FIG. 5; FIG.

8 is a cross-sectional view illustrating side mounting of a cover case and a case top facing the gate TCP according to the first embodiment of the present invention.                 

9 is a cross-sectional view illustrating side mounting of a cover case and a case top facing the gate TCP according to the second embodiment of the present invention.

10 is a cross-sectional view illustrating side mounting of a cover case and a case top facing the gate TCP according to the third embodiment of the present invention.

FIG. 11 is a cross-sectional view illustrating side mounting of a cover case and a case top facing data TCP according to the first embodiment of the present invention; FIG.

12 is a cross-sectional view illustrating side mounting of a cover case and a case top facing data TCP according to a second embodiment of the present invention.

FIG. 13 is a cross-sectional view illustrating side mounting of a cover case facing a data TCP and a case top according to a third embodiment of the present invention; FIG.

<Description of Symbols for Main Parts of Drawings>

2, 32; Case top 4, 34, 35: polarizer

6, 36: liquid crystal panel 8, 38: light sheets

10, 40: backlight unit 12, 42: reflective sheet

14, 44: main support 16, 46, 96: home

18, 60, 62: tightening screw 47: insert nut

50: protrusion 52: gate TCP

54: PCB 56: data TCP

58: cover bottom 61: cover case                 

63, 82, 83, 94, 106: screw holes 80, 81, 84, 92, 102, 104: holes

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a liquid crystal display device, and more particularly, to a liquid crystal display device capable of firmly fixing a large liquid crystal display module and a system.

A typical liquid crystal display device is composed of a liquid crystal display module, a driving circuit portion and a case for driving the liquid crystal display module.

The liquid crystal display module includes a liquid crystal panel in which liquid crystal cells are arranged in a matrix form between two glass substrates, and a back light unit for irradiating light to the liquid crystal panel. In addition, in the liquid crystal display module, optical sheets for vertically raising light traveling from the backlight unit toward the liquid crystal panel are arranged. The liquid crystal panel, the backlight unit and the light sheet must be fastened in an integrated form to prevent light loss and must be protected from damage by external impact. To this end, a case for a liquid crystal display device formed to surround a backlight unit and an optical sheet including an edge of a liquid crystal panel is provided.

The above-described liquid crystal display device is mounted on a portable information processing device such as a portable computer such as a notebook personal computer and used as a display device. Recently, in order to slim down a portable information processing apparatus, a side mounting method in which a liquid crystal display device has mounting means such as screw grooves on a side edge perpendicular to the display direction and is fixed at the side of the portable information processing apparatus (Side Mounting) System) is mainly used.

As shown in FIG. 1, the side mounting type liquid crystal display includes a support main 14 made of plastic and a case top 2 of metal material to be fastened to the support main 14. The support main 14 supports the reflective sheet 12, the backlight unit 10, the light sheets 8, the liquid crystal panel 6, and the polarizer 4 to be stacked on its surface. Grooves 16 are formed on both sides of the support main 14.

The case top 2 is installed to cover side surfaces of the light sheets 8, the backlight unit 10, and the support main 14, including edges and sides of the surface of the liquid crystal panel 6. Screw holes 2A are formed on both sidewalls of the case top 2 so as to correspond to the grooves 16 of the support main 14. In addition, the case top 2 covers the support main 14 as shown in FIG. 2, and the reflective sheet 12, the backlight unit 10, and the light sheet are sequentially stacked on the support main 14. The field 8 and the liquid crystal panel 6 are fixed not to flow. In addition, the case top 2 surrounds the edge of the liquid crystal panel 6 to protect the liquid crystal panel from external impact. In addition, the polarizing plate 4 is positioned at the center of the surface of the liquid crystal panel 6.

In the liquid crystal display having the above-described structure, as shown in FIG. 2, the fastening screw 18 coupled to the screw hole 2A of the case top 2 from the surface of the cover case 1 surrounding the display device such as a notebook personal computer. Is mounted on the cover case 1 of the notebook personal computer.

As described above, the conventional side mounting type liquid crystal display device includes a fastening screw 18 that penetrates through holes in the system and is fastened to screw holes formed at two or four sides of the case top 2. Fix the liquid crystal display module and the system by using. However, the side mounting type liquid crystal display device has a new side which can firmly secure the liquid crystal display module to the system because the fixing with the system is incomplete due to the weight of the liquid crystal display module due to the large screen of the liquid crystal display module. There is a need for a mounting liquid crystal display device.

Accordingly, an object of the present invention is to provide a liquid crystal display device which can firmly secure a large screen liquid crystal display module and a system.

In order to achieve the above object, a liquid crystal display according to an exemplary embodiment of the present invention includes a liquid crystal panel in which data lines and gate lines are arranged in a matrix, and attached to the liquid crystal panel to supply driving signals to the data lines. A plurality of data tape carrier packages on which data drive integrated circuits are mounted, a plurality of gate tape carrier packages mounted on the liquid crystal panel, and a gate drive integrated circuit mounted on the liquid crystal panel to supply driving signals to the gate lines; A frame for supporting the panel, a case top for wrapping the edge of the liquid crystal panel and surrounding the frame, a plurality of first upper fastening portions formed on sidewalls of the frame facing the data tape carrier package; Molded on the side wall of the case top to correspond to the first upper fastening portion A second upper fastening portion, a plurality of first left fastening portions formed on sidewalls of the frame facing the gate tape carrier package, and side walls of the case top to correspond to the first left fastening portions; A second left fastening portion, a plurality of first right fastening portions formed on opposite sidewalls of the side wall of the frame facing the gate tape carrier package, and formed on side walls of the case top to correspond to the first right fastening portions; And a second right fastening portion, wherein the first upper fastening portion has protrusions protruding between the plurality of data tape carrier packages from the sidewall of the frame toward the second upper fastening portion, and grooves formed in the protrusions. do.

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The liquid crystal display further includes a bottom cover disposed between the first upper fastening part and the second upper fastening part to surround the rear and side surfaces of the frame.

In the liquid crystal display, the bottom cover may include any one of a screw hole and a hole in which a female thread is formed on sidewalls corresponding to the first and second upper fastening portions.

Each of the second upper fastening part, the second left fastening part, and the second right fastening part of the LCD may be a screw hole in which a female thread is formed.

In the LCD, each of the second upper fastening part, the second left fastening part, and the second right fastening part is a hole.

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In the LCD, each of the first left fastening portion and the first right fastening portion may be a screw hole in which a female thread is formed.

In the liquid crystal display, each of the first left fastening portion and the first right fastening portion may be an insert nut having a female thread inserted into a sidewall of the frame.

In the LCD, each of the first left fastening part and the first right fastening part is a groove.

Other objects and features of the present invention in addition to the above objects will be apparent from the description of the embodiments with reference to the accompanying drawings.

A preferred embodiment of the present invention will be described with reference to FIGS. 4 to 13.

Referring to FIG. 4, the liquid crystal display according to the exemplary embodiment of the present invention has a support main 44 made of plastic and a case top 32 made of metal to be fastened to the support main 44. . The reflective sheet 42, the backlight unit 40, and the light sheets 38 are sequentially stacked on the surface of the support main 44, and the lower polarizing plate 35 and the liquid crystal panel are disposed on the light sheets 38. 36 and the upper polarizing plate 34 are sequentially stacked. To this end, the support main 44 is provided with stepped portions, and both side walls are formed with a plurality of first grooves 46 into which the fastening screw 60 is fastened to the case top 32.

The reflective sheet 42 guides the light from the backlight unit 40 toward the liquid crystal panel 36. The optical sheets 38 cause the light incident obliquely from the surface of the reflective sheet 42 to travel vertically toward the liquid crystal panel 36. In other words, the optical sheets 38 serve to raise the propagation direction of light from the surfaces of the optical sheets 38. The upper and lower polarizers 34 and 35 are responsible for extending the viewing angle of the image displayed by the liquid crystal cell matrix.

In the liquid crystal panel 36, liquid crystal cells are arranged in an active matrix form between upper and lower glass substrates, and thin film transistors for switching video signals are installed in each of the liquid crystal cells. It is. Since the refractive index of each of the liquid crystal cells is changed according to the video signal, an image corresponding to the video signal is displayed. On the lower substrate of the liquid crystal panel 36, tape carrier packages 52 and 56 on which a driver integrated circuit for applying a driving signal to a thin film transistor are mounted are mounted.

The TCPs 52 and 56 are attached to the data printed circuit board 54 for supplying a video signal to the data lines of the liquid crystal panel 36 and to the data pads on the lower substrate, so as to control signals from the data printed circuit board 54. In response to a control signal from the printed circuit board 54 and a data TCP 56 mounted with a data drive integrated circuit for supplying a video signal to the data lines in response to a control pad from the printed circuit board 54. A gate TCP 52 mounted with a gate drive integrated circuit for supplying a gate signal is divided. As shown in FIG. 5, the TCPs 52 and 56 are folded to surround the rear end of the support main 44 and are positioned at the rear end of the support main 44. At this time, the protrusion 50 is formed on the side wall of the support main 44 corresponding to the data TCP 56 folded in a form surrounding the rear end of the support main 44. The protrusion 50 is, for example, protruded to have a space of approximately 1.5 mm with the adjacent data TCP 56, and the width of the protrusion 50 is, for example, about 4 mm. At this time, the distance between the protrusion 50 and the adjacent data TCP 56 may vary. In addition, the width of the protrusion 50 may vary depending on the distance between adjacent data TCP 56. This is to protect the data drive integrated circuit mounted in the data TCP 56 from static electricity by maintaining the distance between the protrusion 50 and the data TCP 56 at a predetermined interval. As described above, each of the protrusions 50 is provided with a second groove.

The case top 32 is bent to cover the edges of the liquid crystal panel 36 to include the edges and side surfaces of the surface of the liquid crystal panel 6, including the reflective sheet 42, the backlight unit 40, and the light sheets 38. ), The lower polarizing plate 35, the liquid crystal panel 36, and the upper polarizing plate 34 are installed to surround side surfaces of the support main 44 stacked sequentially.

The support main side has a side wall of the case top 32 facing the gate TCP 52 and an opposite side wall of the case top 32 facing the gate TCP 52 (hereinafter referred to as "both side walls of the case top 32"). The first screw holes 63 are formed to correspond to the first grooves 46 of the 44, and the side wall of the case top 32 facing the data TCP 56 (hereinafter referred to as “case top 32”) is formed. Second screw holes are formed in the upper sidewall "so as to correspond to the second groove formed in the protrusion 50 of the support main 44. In addition, the case top 32 covers the support main 44, and the reflective sheet 42, the backlight unit 40, the light sheets 38, and the liquid crystal panel, which are sequentially stacked on the support main 44, are sequentially stacked. Secure (36) so that it does not flow. In addition, the case top 32 surrounds the edge of the liquid crystal panel 36 to protect the liquid crystal panel from external impact. In addition, the upper polarizing plate 34 is positioned at the center of the surface of the liquid crystal panel 36.

The liquid crystal display module of the liquid crystal display according to the embodiment of the present invention having the above-described structure is wrapped by a cover case of a notebook personal computer or a display system. To this end, the liquid crystal display device has a side surface of the cover case 61 facing the gate TCP 52 and a side surface of the case top 32 passing through a hole formed in the cover case 61 as shown in FIG. 7A. It is fastened by the first fastening screw 60 which is fastened to the first screw hole 63 formed in the side wall of the tower 32 and inserted into the first groove 67 of the support main 44. In addition, the upper sidewall of the cover case 61 and the upper sidewall of the case top 32 facing the data TCP 56 pass through a hole formed in the cover case 61 as shown in FIG. 7B. The second fastening screw 62 is fastened to the second screw hole 82 formed on the upper sidewall of the c) and is inserted into the second groove 86 formed on the protrusion 50 of the support main 44.

In detail, the side mounting method 55 of the side of the cover case 61 and the side of the case top 32 facing the gate TCP 52 according to the first embodiment of the present invention is illustrated in FIG. 8. As shown, the first hole 80 formed in the cover case 61 of the system, the first screw hole 63 formed in the case top 32 positioned on the inner sidewall of the cover case 61 and the support main 44 It has a first groove 46 formed in). Accordingly, the liquid crystal display device includes a first screw hole formed in the side surface of the case top 32 that penetrates the first hole 80 of the cover case 61 facing the gate TCP 52 and surrounds the support main 44. The cover case 61 and the case top 32 are fastened by using the first fastening screw 60 fastened to the 63 to fasten the system and the liquid crystal display module.

Meanwhile, the side mounting method 55 of the side of the cover case 61 and the side of the case top 32 facing the gate TCP 52 according to the second embodiment of the present invention is shown in FIG. 9. It has a first hole 80 formed in the cover case 61, a second hole 81 formed in the case top 32 and a screw hole 83 formed in the support main 44. Accordingly, the liquid crystal display device has a second hole 91 formed at the side of the case top 32 surrounding the first hole 80 and the support main 44 of the cover case 61 facing the gate TCP 52. The cover case 61 and the support main 44 are fastened by using the first fastening screw 60 fastened to the screw hole 83 formed in the support main 44 to penetrate the system and the liquid crystal display module. do.

On the other hand, the side mounting method 55 of the side of the cover case 61 and the side of the case top 32 facing the gate TCP 52 according to the third embodiment of the present invention is shown in FIG. As described above, a first hole 80 formed in the cover case 61, a second hole 91 formed in the case top 32, and a female thread inserted into the support main 44 by a high frequency fusion process are formed. The insert nut 47 is provided. Accordingly, the liquid crystal display device has a second hole 91 formed at the side of the case top 32 surrounding the first hole 80 and the support main 44 of the cover case 61 facing the gate TCP 52. The cover case 61 and the support main 44 are fastened by using the first fastening screw 60 fastened to the insert nut 47 inserted into the support main 44 by penetrating the system and the liquid crystal display module. Done.

As shown in FIG. 11, the side mounting method 65 of the upper side of the cover case 61 and the upper side of the case top 32 facing the data TCP 56 according to the first embodiment of the present invention is illustrated in FIG. 11. A first hole 80 formed in the cover case 61 of the system, a screw hole 82 formed in the case top 32 positioned on the inner side wall of the cover case 61, a side wall of the support main 44, and The second hole 84 is formed in the cover bottom 58 supporting the rear surface, and the second groove 86 is formed in the protrusion 50 of the support main 44. Accordingly, the liquid crystal display device passes through the first hole 80 of the cover case 61 facing the data TCP 56 and is fastened to the screw hole 82 of the case top 32. By fastening the case top 32 to the cover case 61 using the () to fasten the system and the liquid crystal display module.

Meanwhile, the side mounting method 65 of the upper side of the cover case 61 and the upper side of the case top 32 facing the data TCP 56 according to the second embodiment of the present invention is illustrated in FIG. 12. As described above, the first hole 80 formed in the cover case 61 of the system, the second hole 92 formed in the case top 32 positioned on the inner sidewall of the cover case 61, and the support main 44 are formed. It has a second screw hole 94 formed in the cover bottom 58 for supporting the side wall and the rear surface of the and the second groove 96 formed in the protrusion 50 of the support main 44. Accordingly, the liquid crystal display device penetrates through the first hole 80 of the cover case 61 and the second hole 92 of the case top 32 to the second screw hole 94 formed in the cover bottom 58. The cover case 61 and the cover bottom 58 are fastened using the second fastening screw 62 fastened to fasten the system and the liquid crystal display module.

On the other hand, the side mounting method 65 of the upper side of the cover case 61 and the upper side of the case top 32 facing the data TCP 56 according to the third embodiment of the present invention is shown in FIG. As shown, the first hole 80 formed in the cover case 61 of the system, the second hole 102 formed in the case top 32 located on the inner sidewall of the cover case 61, the support main ( The third hole 104 is formed in the cover bottom 58 supporting the side wall and the rear surface of the 44, and the second screw hole 106 is formed in the protrusion 50 of the support main 44. Accordingly, the liquid crystal display device passes through the first hole 80 of the cover case 61, the second hole 102 of the case top 32, and the third hole 104 of the cover bottom 58. The upper end of the cover case 61 and the upper end of the support main 44 are fastened by using the second fastening screw 62 fastened to the second screw hole 106 formed in the protrusion 50 of the 44. The liquid crystal display module is fastened. Here, the insert nut in which the female thread is formed instead of the second screw hole 106 may be inserted into the protrusion 50 of the support main 44 by a high frequency fusion process.

 As described above, the liquid crystal display according to the exemplary embodiment of the present invention uses the side mounting method to fix the side of the cover case facing the gate TCP and the side of the case top, and the top of the cover case facing the data TCP. By fixing the side and the upper side of the case top, even if the weight of the liquid crystal display module increases due to the large screen of the liquid crystal display module, it is possible to firmly fix the liquid crystal display module and the system. Therefore, the present invention is suitable for fixing a large screen liquid crystal display device.

Those skilled in the art will appreciate that various changes and modifications can be made without departing from the technical spirit of the present invention. Therefore, the technical scope of the present invention should not be limited to the contents described in the detailed description of the specification but should be defined by the claims.

Claims (10)

A liquid crystal panel in which data lines and gate lines are arranged in a matrix form; A plurality of data tape carrier packages attached to the liquid crystal panel and mounted with data drive integrated circuits for supplying driving signals to the data lines; A plurality of gate tape carrier packages attached to the liquid crystal panel and mounted with a gate drive integrated circuit for supplying driving signals to the gate lines; A frame for supporting the liquid crystal panel; A case top for wrapping the edge of the liquid crystal panel and surrounding the frame; A plurality of first upper fastening portions formed on sidewalls of the frame opposite the data tape carrier package; A second upper fastening part formed on a side wall of the case top to correspond to the first upper fastening part; A plurality of first left fastening portions formed on sidewalls of the frame opposite the gate tape carrier package; A second left fastening part formed on a side wall of the case top to correspond to the first left fastening part; A plurality of first right fastening portions formed on opposite sidewalls of the sidewalls of the frame opposite the gate tape carrier package; A second right fastening part formed on a side wall of the case top to correspond to the first right fastening part; And the first upper fastening part includes protrusions protruding between the plurality of data tape carrier packages from the sidewall of the frame toward the second upper fastening part, and grooves formed in the protrusions. delete The method of claim 1, And a bottom cover disposed between the first upper fastening part and the second upper fastening part to surround a rear surface and a side surface of the frame. The method of claim 3, wherein And one of a screw hole and a hole in which female threads are formed on sidewalls corresponding to the first and second upper fastening portions. The method of claim 1, And each of the second upper fastening part, the second left fastening part, and the second right fastening part is a screw hole in which a female thread is formed. The method of claim 1, And each of the second upper fastening part, the second left fastening part, and the second right fastening part is a hole. delete The method of claim 1, And each of the first left fastening part and the first right fastening part is a screw hole in which a female thread is formed. The method of claim 1, And each of the first left fastening part and the first right fastening part is an insert nut having a female thread inserted into a side wall of the frame. The method of claim 1, And each of the first left fastening part and the first right fastening part is a groove.

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