JPH0634948A - Liquid crystal display device - Google Patents

Abstract

PURPOSE:To effectively utilize one surface of the circuit block and make the price of the circuit block lower than before. CONSTITUTION:The liquid crystal display device is equipped with a liquid crystal panel 11, the circuit block 14 which drives the liquid crystal panel 11, a conduction connector 15 which electrically connects the liquid crystal panel 11 and circuit block 14 to each other, and a holder 16 which holds the liquid crystal panel 11, circuit block 14, and conduction connector 15; and one-surface constitution which does not face the liquid crystal panel 11 is employed as the constitution of the circuit block 14 and the conduction connector 15 has a recessed part, into which the circuit block 14 is inserted.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a structure of a liquid crystal display device.

[0002]

2. Description of the Related Art Liquid crystal display devices are used in a wide range of applications because of their characteristics of low power consumption, small size and light weight.
Recently, in addition to the conventionally used TN (twisted nematic) type, the twist angle of liquid crystal molecules is 180 °.
With the development of the birefringence mode liquid crystal display device as described above,
Large-capacity, high-visibility displays for personal computers, word processors, etc. are possible, and their applications are expanding.

Such a liquid crystal display device has, for example, the following configuration. That is, the liquid crystal panel and the driving circuit block are electrically connected by a conductive connector, and a holder for holding the liquid crystal panel, the circuit block and the conductive connector is provided, and a backlight is provided between the liquid crystal panel and the circuit block. It is designed to be insertable. Figure 4
FIG. 6 is a schematic diagram showing an example of the configuration of a conventional circuit block. In FIG. 4, an electronic component 2 is mounted on the lower surface of the printed board 1 in the drawing, and the electronic component 2 is electrically connected to the electrode terminals 3 on the upper surface of the drawing through the through holes 4 and the lead electrodes 5. There is.

[0004]

By the way, in this type of liquid crystal display device, generally, the circuit configuration of the circuit block is a double-sided configuration as shown in FIG. 4, and the printed board 1 is processed with through holes 4 and the like. Because of this, the price of parts is high. And, since the liquid crystal panel surface side of the circuit block may come into contact with the wiring of the circuit block,
It was difficult to install holders that became conductors. The present invention has been made in view of such conventional circumstances.

[0005]

According to the present invention, there is provided a liquid crystal panel, a circuit block for driving the liquid crystal panel, and a conductive connector for electrically connecting the liquid crystal panel and the circuit block.
The present invention relates to a liquid crystal display device including a liquid crystal panel, a circuit block, and a holder that holds a conductive connector. The circuit configuration of the circuit block is one side not facing the liquid crystal panel, and the conductive connector has a recess, and the circuit block is inserted into this recess.

[0006]

According to the present invention, the circuit configuration of the circuit block is one side not facing the liquid crystal panel, so that the liquid crystal panel surface side of the circuit block can be effectively utilized and the through hole or the like in the circuit block is unnecessary. Therefore, the parts price can be reduced.

[0007]

DESCRIPTION OF THE PREFERRED EMBODIMENTS The details of the present invention will be described below with reference to the drawings.

FIG. 1 is an exploded perspective view showing an embodiment of the present invention. In FIG. 1, a liquid crystal panel 11 is configured by holding a liquid crystal between two substrates 12 and 13 made of, for example, glass. The circuit block 14 is composed of a printed wiring board on which electronic components such as ICs are mounted on the lower surface of the drawing, and has a role of driving the liquid crystal panel 11. Further, the conductive connector 15 includes a conductive portion and an insulating portion, and has a predetermined recess. Also, the holder 16 is
It is made of metal or a retentive material.

FIG. 2 is a sectional view of the embodiment shown in FIG. In FIG. 2, the circuit block 14 is inserted into the concave portion of the conductive connector 15 such that an electronic component such as an IC faces the lower surface in the drawing. Then, the liquid crystal panel 11 and the conductive connector 15 in which the circuit block 14 is inserted are brought into contact with each other, and the holder 16 holds the liquid crystal panel 11 and the circuit block 14.
By holding and integrating the conductive connector 15, the conductive connector 15 is elastically pressed to electrically connect the liquid crystal panel 11 and the circuit block 14.

FIG. 3 is a schematic diagram showing the structure of a circuit block 14 in which electronic components such as ICs are oriented toward the upper surface in the drawing. As can be seen from FIG. 3, an electronic component 22 such as an IC is mounted on one main surface of the printed wiring board 21, and electrode terminals 23 and lead electrodes 24 are formed. That is, the electrode terminal 23 is also installed on the side on which the electronic component 22 is mounted, and the circuit block 14 has a single-sided circuit configuration.

In this embodiment, since the circuit configuration of the circuit block 14 is a single-sided configuration that does not face the liquid crystal panel 11, there is no obstacle on the liquid crystal panel 11 side of the circuit block 14 and the liquid crystal display device can be easily provided. In addition to being able to assemble, electrical problems (IC defects, pattern defects) after assembly can be easily dealt with. Further, by inserting the circuit block 14 into the concave portion of the conductive connector 15, conduction can be established between the electrode terminal 23 of the circuit block 14 and the conductive portion of the conductive connector 15. Further, since the circuit block 14 does not require the through hole as shown in FIG. 4, the cost of the circuit block 14 can be made lower than the conventional one.

In this embodiment, the conductive connector 15 is used for electrical connection with the circuit block 14 having one electrode pattern in the X direction or the Y direction in the liquid crystal panel 11, but the X direction or the For the other electrode pattern in the Y direction, a flexible printed board or the like can be used. Further, the vacant one side of the circuit block 14 can be effectively used. For example, by forming an aluminum film that reflects light on this surface, it becomes a mechanism which doubles as a backlight.

[0013]

According to the present invention, the circuit configuration of the circuit block is one side not facing the liquid crystal panel, so that one side of the circuit block can be effectively used.
The price of parts can be reduced compared to the past.

[Brief description of drawings]

FIG. 1 is an exploded perspective view showing an embodiment of the present invention.

FIG. 2 is a sectional view showing an embodiment of the present invention.

FIG. 3 is a schematic diagram showing a circuit block in one embodiment of the present invention.

FIG. 4 is a schematic diagram showing an example of a conventional circuit block.

[Explanation of symbols]

 11 ... Liquid crystal panel 14 ... Circuit block 15 ... Conductive connector 16 ... Holder

Claims (1)

[Claims] 1. A liquid crystal panel, a circuit block for driving the liquid crystal panel, a conductive connector for electrically connecting the liquid crystal panel and the circuit block, a liquid crystal panel, the circuit block, and the conductive connector. In a liquid crystal display device including a holder, the circuit configuration of the circuit block is a single-sided configuration that does not face the liquid crystal panel, and the conductive connector has a recess, and the circuit block is inserted into the recess. Characteristic liquid crystal display device.