JPH0713133A - Liquid crystal display structure - Google Patents

Abstract

(57) [Abstract] [Purpose] When assembling a liquid crystal display device, ensure the positioning of the pattern on the liquid crystal display board and the pattern on the circuit board.
And do it quickly. [Structure] An alignment pattern A12 and an alignment pattern B13 for alignment are respectively provided on the liquid crystal display plate 1 and the circuit board 2, and these alignment patterns are confirmed from the outside of the liquid crystal display device. A structure of a liquid crystal display device, wherein a window 11 and a lighting hole 14 are provided in the liquid crystal display device. [Effect] By providing the confirmation window 11 and the lighting hole 14 in the liquid crystal display device, the time required for assembly can be shortened. Further, by confirming the alignment state of the alignment mark A12 and the alignment mark B13, the transparent electrode pattern 9 on the liquid crystal display board 1 and the copper foil pattern 10 on the circuit board 2 are confirmed.
It is possible to easily check the alignment state of, and the quality of the liquid crystal display device is improved.

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 FIG. 2A is a sectional view of a structure of a liquid crystal display device having a backlight according to the prior art. 1 is a liquid crystal display board, 2 is a circuit board, 3 is a zebra connector that connects the liquid crystal display board 1 and the circuit board 2, 4 is a COB-mounted liquid crystal drive element, and 5 is a space for accommodating a backlight. , A frame that supports the liquid crystal display panel 1. Reference numeral 6 is a backlight, and 7 is a frame for housing the display device. Frame 7
In some cases, the external surface of the product is directly formed, but in this example, it is assumed that the external appearance is not made of metal such as stainless steel, and the outer frame forming the external appearance is a separate body. Reference numeral 8 is a spacer that fills the play of the liquid crystal display panel 2 housed between the frame 5 and the frame 7. In addition to this, the reference numeral 8 also serves as a cushioning material for preventing the liquid crystal display panel 1 and the frame 7 from coming into direct contact with each other due to an impact when dropped.

FIG. 2B is a schematic view of a terminal portion of a conventional liquid crystal display device. Reference numeral 9 is a transparent electrode (ITO) on the lower surface of the upper glass of the liquid crystal display plate 1, and 10 is a copper foil pattern on the upper surface of the circuit board 2. The liquid crystal display device uses the transparent electrode pattern 9 and the copper foil pattern 10 for the zebra connector 3
The liquid crystal display panel 1 is driven by connecting via the.

[0004]

In the assembling process according to the prior art so far, when the pattern pitch is small, the alignment between the transparent electrode pattern 9 on the liquid crystal display panel 1 and the copper foil pattern 10 on the circuit board 2 is performed. However, there is a problem that it cannot be confirmed unless the liquid crystal driving element 4 is driven to light the liquid crystal display panel 1 after assembly. In the conventional structure so far, the transparent electrode pattern 9 and the copper foil pattern 1 are used.
It is impossible to check the connection and assembly status such as how 0 and 0 are connected, for example, whether the pattern positions of both are properly connected or barely connected. It also had the problem of being present.

[0005]

According to the present invention, a transparent electrode pattern 9 is formed on a liquid crystal display panel 1 and a copper foil pattern 10 is formed on a circuit board 2 to form an alignment pattern for aligning both positions. In addition, the structure of the liquid crystal display device is characterized in that the liquid crystal display device is provided with a daylighting window for making it easier to see the alignment pattern.

[0006]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows a frame 7-a liquid crystal display panel 1-a circuit board 2 in order to facilitate understanding of the structure of a liquid crystal display device according to the present invention.
It is a perspective view showing the positional relationship of. Reference numeral 11 denotes a frame 7 for confirming the alignment mark from the outside of the liquid crystal display device.
A reference mark 12 formed on the liquid crystal display panel 1 by the transparent electrode, and 13 a reference mark B formed on the circuit board 2 by the copper foil.
Is. Reference numeral 14 is a hole for lighting provided at the center of the alignment mark B on the circuit board 2. Each part is designed such that the center of each of the confirmation window 11, the alignment mark A12, the alignment mark B13, and the lighting hole 14 described above is on the vertical axis of 15 when assembled. From this, it is understood that the alignment of the transparent electrode pattern 9 on the liquid crystal display board 1 and the copper foil pattern 10 on the circuit board 2 can be performed within the formation tolerance of the transparent electrode pattern 9 and the copper foil pattern 10. Further, in the above description, the lighting window 14 is provided at the center of the alignment mark B13 on the circuit board 2, but it may be provided at any position such as the side surface of the frame 7 as long as the lighting is possible. it can.

Further, in FIG. 1, the alignment mark A12
Although the alignment marks 13 are provided at both ends on the same side of the liquid crystal display device, the positions can be provided at arbitrary plural positions other than the liquid crystal display region, such as diagonal ends.

3A and 3B show another embodiment of the alignment mark A12 and the alignment mark B13 according to the present invention. As shown in this figure, if the positional relationship between the alignment mark A12 and the alignment mark B13 can be confirmed, any shape such as a square shape or a round shape can be selected. Further, regarding the size relationship between the shapes of the alignment mark A12 and the alignment mark B13, they may have the same size as shown in FIG. 3A or different sizes as shown in FIG. 3B.

[0009]

According to the present invention, when assembling, the alignment mark A12 and the alignment mark B are pushed through the confirmation window 11.
By checking only the position of 13, the transparent electrode pattern 9 on the liquid crystal display board 1 and the copper foil pattern 1 on the circuit board 2
Positioning of 0 can be performed, which has the effect of shortening the time in the assembly process. Also, this alignment mark A
12 and the alignment state of the alignment mark B13, it is possible to easily confirm the alignment state of the transparent electrode pattern 9 on the liquid crystal display plate 1 and the copper foil pattern 10 on the circuit board 2. There is also an effect that the quality of the liquid crystal display device can be dramatically improved.

[Brief description of drawings]

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

FIG. 2A is a cross-sectional view of an example of a conventional technique. (B) is a partial enlarged schematic diagram of the example of a prior art.

FIG. 3A is an enlarged view of another embodiment of the present invention. (B)
Is an enlarged view of another embodiment of the present invention.

[Explanation of symbols]

 1 Liquid crystal display board 2 Circuit board 3 Zebra connector 4 Liquid crystal drive element 5 Spacer 6 Backlight 7 Frame 8 Spacer 9 Transparent electrode pattern 10 Copper foil pattern 11 Confirmation window 12 Alignment pattern A 13 Alignment pattern B 14 Alignment hole 15 Vertical axis

Claims (4)

[Claims] 1. A liquid crystal display device having a liquid crystal display plate, wherein both the liquid crystal display plate and a circuit board having terminals connected to the liquid crystal display plate have alignment marks for aligning connection terminals. Characteristic liquid crystal display structure. 2. A liquid crystal display device having a liquid crystal display plate, wherein both the liquid crystal display plate and the circuit board having terminals connected to the liquid crystal display plate are arranged in the horizontal direction of the liquid crystal display plate and the circuit board. A structure of a liquid crystal display device having a plurality of alignment marks for alignment. 3. A liquid crystal display plate, a connection terminal alignment for both the liquid crystal display plate and a circuit board having terminals connected to the liquid crystal display plate, and horizontal alignment between the liquid crystal display plate and the circuit board. A liquid crystal display device having an alignment mark for directional alignment, wherein the alignment mark allows confirmation of the connection state between the pattern on the liquid crystal display plate and the pattern on the circuit board. Display device structure. 4. A liquid crystal display plate, a connection terminal alignment for both the liquid crystal display plate and a circuit board having terminals connected to the liquid crystal display plate, and horizontal alignment between the liquid crystal display plate and the circuit board. 1. A structure of a liquid crystal display device, comprising: a liquid crystal display device having alignment marks for directional alignment, wherein the liquid crystal display device has a lighting window for making the alignment marks easy to see.