KR20070068088A - Liquid crystal display module - Google Patents

Abstract

An LCD(Liquid Crystal Display) module is provided to include an instruction member for instructing a direction of a connector inserted into a socket on a PCB(Printed Circuit Board). A bottom chassis(132) receives a lamp for supplying the light beam to an LCD panel. A PCB applies signals to the LCD panel. A socket(177) is mounted on the PCB and receives a signal through the outer input lead line having a connector. An instruction member(180) instructs the direction of the connector inserted into the socket. The instruction member is offered on the bottom chassis. The instruction member is a character printed on the bottom chassis. A shield case is combined with the rear of the bottom chassis and encapsulates the PCB.

Description

Liquid Crystal Display Module {LIQUID CRYSTAL DISPLAY MODULE}

1 is an exploded perspective view schematically showing a liquid crystal display module according to the present invention;

2 is a cross-sectional view showing a coupling structure of the liquid crystal display module shown in FIG. 1;

3 is a view showing a state in which the shield case is coupled to the back of the bottom chassis according to the present invention;

4 is a view showing a state of the shield case coupled to the back of the bottom chassis according to the present invention;

5 is a view showing a state in which the connector is inserted into the socket according to the present invention.

Explanation of symbols on the main parts of the drawings

100: liquid crystal display module 132: bottom chassis

140: top chassis 170: display unit

176: integrated printed circuit board 177: socket

178: data side tape carrier package 180: indicator

190: connector

The present invention relates to a liquid crystal display module, and more particularly, to a liquid crystal display module including an indicator provided for providing a direction of a connector inserted into a socket on a printed circuit board.

Recently, information processing devices have been rapidly developed to have various forms, various functions, and faster information processing speeds. Information processed in such an information processing apparatus has an electrical signal form. Therefore, in order for the operator to visually check the information processed by the information processing apparatus, a display apparatus that serves as an interface is required.

Conventionally, display devices of a cathode ray tube (CRT) type have been used. Recently, however, liquid crystal display modules having light weight and small size and excellent performances compared to cathode ray tube systems have been widely used.

The liquid crystal display module applies a voltage to a specific molecular array of liquid crystals and converts the same into another molecular array, and visually changes optical properties such as birefringence, photoreactivity, dichroism, and light scattering characteristics of the liquid crystal cell emitted by the molecular array. It is a display using modulation of the light by a liquid crystal cell by converting into a change.

The voltage applied to the liquid crystal is determined by the driving signal applied from the outside. A signal applied from the outside is applied to a signal conversion printed circuit board (A / D board) electrically connected to the liquid crystal display module, and a signal passing through the signal conversion printed circuit board is a printed circuit in the liquid crystal display module. Is applied to the substrate.

The thin film transistor substrate and the color filter substrate are positioned in the liquid crystal display module. A common electrode made of indium tin oxide (ITO) is coated on the thin film transistor substrate, and a common electrode made of indium tin oxide (ITO) is coated on the color filter substrate positioned in the liquid crystal display module. It is.

When a signal is applied to the printed circuit board, an electric field is formed between the pixel electrode and the common electrode. The arrangement angle of the liquid crystal injected between the thin film transistor substrate and the color filter substrate is changed according to the formed electric field, and the light transmittance is changed according to the changed arrangement angle to obtain a desired pixel.

As described above, in order to receive an external signal into the liquid crystal display module, the signal converted through the signal conversion printed circuit board must be received through the printed circuit board. Therefore, the signal conversion printed circuit board and the printed circuit board should be electrically connected.

Connectors are mounted at both ends of the input lead wire to electrically connect the two ends, one end of which is connected to a printed circuit board for signal conversion and the other end of which is connected to a printed circuit board. The printed circuit board is provided with a socket into which the connector can be inserted.

Such a liquid crystal display module has the following problems.

Since the socket and the connector corresponding to the socket have a directionality, the operator should understand the shape of the socket and insert the connector according to the shape of the socket. However, it is difficult for an operator to visually check a small socket shape.

In addition, when the operator inserts the connector in the opposite direction without knowing the shape of the socket, the socket and the connector may be damaged.

In particular, when the liquid crystal display module is completed, a signal conversion printed circuit board is mounted on the completed liquid crystal display module to manufacture the completed display device. At this time, the manufacturer of the liquid crystal display module and the manufacturer of the finished display device by manufacturing a printed circuit board for signal conversion are different from each other, and there is a frequent misunderstanding and confusion about the shape of the socket. Therefore, the possibility of damage to the socket and the connector due to incorrect insertion of the connector is very high.

SUMMARY OF THE INVENTION An object of the present invention is to provide a liquid crystal display module capable of providing a direction of a connector inserted into a socket.

Another object of the present invention is to provide a liquid crystal display module capable of preventing damage to a connector or a socket.

According to the present invention, a liquid crystal display module includes a bottom chassis for accommodating a liquid crystal display panel and a lamp for providing light to the liquid crystal display panel, a printed circuit board for applying a signal to the liquid crystal display panel, and mounted on the printed circuit board. And a socket for receiving a signal through an external input lead wire having a connector, and an indicator provided to indicate a direction of the connector inserted into the socket.

The indicator may be provided on the bottom chassis.

The indicator may be a character printed on the bottom chassis.

The liquid crystal display module may further include a shield case coupled to a rear surface of the bottom chassis to surround the printed circuit board, and the indicator may be provided on the shield case.

Hereinafter, exemplary embodiments of the present invention will be described in more detail with reference to FIGS. 1 to 5. Embodiment of the present invention may be modified in various forms, the scope of the present invention should not be construed as limited to the embodiments described below. This embodiment is provided to explain in detail the present invention to those skilled in the art. Accordingly, the shape of each element shown in the drawings may be exaggerated to emphasize a more clear description.

1 is an exploded perspective view schematically showing a liquid crystal display module 100 according to the present invention.

The liquid crystal display module 100 includes a display unit 170 including a liquid crystal display panel 171 representing a screen, and a backlight unit 150 that provides light to the display unit 170.

The display unit 170 includes a liquid crystal display panel 171, an integrated printed circuit board 176, a data side tape carrier package (TCP) 178, and a gate side tape carrier package 174.

The liquid crystal display panel 171 includes a thin film transistor (TF) substrate 172, a color filter (CF) substrate 173, and a liquid crystal (not shown).

The thin film transistor substrate 172 is a transparent glass substrate on which a thin film transistor on a matrix is formed. A data line is connected to a source terminal of the thin film transistors, and a gate line is connected to a gate terminal. In addition, a pixel electrode made of indium tin oxide (ITO), which is a transparent conductive material, is formed in the drain terminal.

The color filter substrate 173 is provided to face the thin film transistor substrate 172. The color filter substrate 173 is a substrate in which RGB pixels, which are color pixels in which a predetermined color is expressed while light passes, are formed by a thin film process. The common electrode made of indium tin oxide (ITO) is coated on the entire surface of the color filter substrate 173.

On the other hand, in order to control the arrangement angle of the liquid crystal of the liquid crystal display panel 171 and the timing at which the liquid crystal is arranged, the gate line tape carrier package 174 and the data side tape, which are a kind of flexible circuit board, are provided on the gate line and the data line of the thin film transistor. The carrier package 178 is attached.

The integrated printed circuit board 176 for receiving an image signal from the outside of the liquid crystal display panel 171 and applying a driving signal to the gate line and the data line, respectively, is a data tape carrier package on the data line side of the liquid crystal display panel 171. 178 is connected. The integrated printed circuit board 176 receives a video signal generated from an external information processing device (not shown) such as a computer, and provides a source portion for providing a data driving signal to the liquid crystal display panel 171 and the liquid crystal display panel ( A gate portion for providing a gate driving signal is formed in the gate line of 171.

The backlight unit 150 is provided under the display unit 170 to provide uniform light to the display unit 170. The backlight unit 150 is provided at one end of the liquid crystal display module 100 to provide a lamp unit 162 for generating light, and a light guide plate 152 for changing the path of the light while guiding the light toward the display unit 170. In addition, the plurality of optical sheets 153 and the light leaking from the light guide plate 152 under the light guide plate 152 to uniform the luminance of the light emitted from the light guide plate 152 are reflected by the light guide plate 152. Reflector 154 is included to increase efficiency.

The display unit 171 and the backlight unit 150 are sequentially stored in the bottom chassis 132 which is a storage container, and an area where the integrated printed circuit board 176 is bent and mounted is mounted on the integrated printed circuit board 176. The circuit parts are partially open to be accommodated smoothly. In addition, in order to prevent the display unit 171 from being separated, a top chassis 140 coupled to the bottom chassis 132 is provided.

2 is a cross-sectional view illustrating a coupling structure of the liquid crystal display module 100 illustrated in FIG. 1.

The reflecting plate 154, the light guide plate 152, the optical sheet 153, the thin film transistor substrate 172, the color filter substrate 173, and the display unit 170 are sequentially stored in the storage space of the bottom chassis 132. Polarizers 172a and 173a are attached to the lower portion of the thin film transistor substrate 172 and the upper portion of the color filter substrate 173, respectively.

The integrated printed circuit board 176 is located at the rear of the bottom chassis 132 in a state bent 180 ° through the data side tape carrier package 178.

3 is a view showing a state in which the shield case 178 is coupled to the back of the bottom chassis 132 according to the present invention.

As described above, the integrated printed circuit board 176 is located at the rear of the bottom chassis 132. A socket 177 for receiving an external data signal is mounted on the integrated printed circuit board 176.

The external data signal is applied to a signal conversion printed circuit board (not shown) connected to the integrated printed circuit board 176. The signal conversion printed circuit board converts an external data signal, that is, an analog data signal into a digital data signal. The integrated printed circuit board 176 is provided.

Accordingly, the signal conversion printed circuit board and the integrated printed circuit board 176 are electrically connected to each other, and an input lead wire 192 and a connector 190 coupled to one end of the input lead wire 192 to connect both are connected. Is provided. In addition, a socket 177 into which the connector 190 may be inserted is mounted on the integrated printed circuit board 176.

A shield case 178 for protecting the integrated printed circuit board 176 is coupled to the bottom of the bottom chassis 132. The shield case 178 serves to shield electromagnetic waves generated from the integrated printed circuit board 176 and protects the integrated printed circuit board 176 from the outside. Thus, the shield case 178 has a shape corresponding to the integrated printed circuit board 176.

A plurality of through grooves 175a, 175b, 175c, 175d and 175e are formed on the shield case 178, and a plurality of through grooves 175a, 175b, 175c, 175d and 175e correspond to the bottom chassis 132. A plurality of fastening grooves 133a, 133b, 133c, 133d, and 133e are formed. A plurality of fasteners 174, 175b, 175c, 175d, 175e passing through the plurality of through grooves 175a, 175b, 175c, 175d, and 175e and the plurality of fastening grooves 133a, 133b, 133c, 133d, and 133e. By the shield case 178 is coupled to the bottom chassis 132.

4 is a view showing a state of the shield case 178 coupled to the back of the bottom chassis 132 according to the present invention, Figure 5 is a view of inserting the connector 190 in the socket 177 according to the present invention. It is a figure which shows.

As described above, when the shield case 178 is coupled to the rear surface of the bottom chassis 132, the integrated printed circuit board 176 is accommodated in the shield case 178, and the socket 177 is exposed to the outside.

An indication unit 180 is provided on a rear surface of the bottom chassis 132 corresponding to the front surface of the socket 177. The indicating unit 180 is provided to present the direction of the connector 190 to be described later.

The socket 177 may be of a normal type and a reverse type according to a shape. The normal type has a narrow bottom portion and a wide top portion of the insertion hole 179 formed inside the socket, and the reverse type has a narrow top portion and a wide bottom portion of the insertion hole 179. 5 illustrates a reverse type insertion hole 179.

The connector 190 corresponding to the socket 177 also has a normal type and a reverse type. The wide side of the connector 190 is upside, and the narrow side corresponds to the downside. In the normal type, the lower side faces the floor and the upper side faces the ceiling. The reverse type, on the other hand, is facing the bottom with the upper side facing the ceiling. Therefore, the connector 190 shown in FIG. 5 corresponds to a reverse type.

Therefore, when the connector 190 is inserted into the socket 177, the shape of the socket 177 is checked, and then the direction of the connector 190 is checked and the connector 190 is inserted into the socket 177.

The indicating unit 180 serves to indicate the direction of the connector 190 described above, and the indicating unit 180 is provided in letters and is described as "INSERT UPSIDE DOWN" in a square box. Therefore, the operator can easily check the shape of the socket 177 through the indicator 180, the operator can be inserted into the socket 177 with the upside of the connector 190 facing down.

Unlike the present embodiment, the indicating unit 180 may be provided on the upper surface of the shield case 178. In addition, the indicating unit 180 may be provided as a character or figure of another content that allows an operator to easily recognize the shape of the socket 177.

As shown in FIG. 5, the operator who confirms the reverse type socket 177 may select the direction of the connector 190 to correspond to the socket 177, and may apply the connector 190 to the socket 177 according to the selected direction. Can be inserted.

According to the present invention, it is possible to easily grasp the direction of the connector inserted into the socket. In addition, it is possible to prevent damage to the connector or socket due to incorrect insertion.

Claims (4)

A bottom chassis to receive a liquid crystal display panel and a lamp that provides light to the liquid crystal display panel; A printed circuit board applying a signal to the liquid crystal display panel; A socket mounted on the printed circuit board and receiving a signal through an external input lead wire having a connector; And an indicator provided to provide a direction of the connector inserted into the socket. The method of claim 1, And the indicator is provided on the bottom chassis. The method of claim 1, And the indicating unit is a character printed on the bottom chassis. The method of claim 1, The liquid crystal display module further includes a shield case coupled to a rear surface of the bottom chassis to surround the printed circuit board. And the indicator is provided on the shield case.

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