JPS61273573A - Liquid crystal display panel apparatus - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a liquid crystal display panel device in which a driving integrated circuit element (LSI) is mounted on the periphery.

BACKGROUND OF THE INVENTION In recent years, liquid crystal display panels as video display elements have made remarkable advances in industry, and in particular, the technology for mounting LSIs that perform matrix drive on liquid crystal display panels has made great progress.

A conventional liquid crystal display panel device will be described below with reference to the drawings. FIG. 6 shows an example of a conventional liquid crystal display panel device.

In FIGS. 5 and 6, 1 is a counter glass in which the liquid crystal material is sealed, and 2 is a counter glass in which the liquid crystal material is sealed between the counter glass 1 and thin film transistors are formed in a matrix on the inner surface of the counter glass. A TPT array substrate has transparent electrodes drawn out from the top and bottom ends of the left and right sides so that electrical signals can be applied from the outside, and 6 is a driving LSI (Y
, ~Y6 driver) and (x1 to x4 dry pan) to the motherboard 17 and the TFT array substrate 2. Film carriers 6 to 11 send signals to the signal electrodes of the TFT array substrate 2 in order from the left side, and the liquid crystal This is an LSI for driving the display panel in a matrix. 6 is a Yl driver, 7 is a Y2 driver, 11 is a Y6 driver, and 12 to 16 send scanning signals to the scanning electrodes of the TFT array substrate 2 in order from the top. 12 is the X driver, 1 is the LSI that sends the
3 is an x2 driver, 14 is an 18 to 21 are conductive patterns for sending electrical signals into the TFT array board 2, and each Y
1 to Y6 drivers and are electrically and mechanically connected via the film carrier 6.

22 to 24 are conductive patterns for sending scanning signals into the TFT array substrate 2, and are electrically connected to each of the x1 to x4 drivers via the film carrier 6.

In the above configuration, the liquid crystal display panel device has 86
As is clear from the figure, each of x1 to x4. The Y1 to Y6 drivers are arranged, and the motherboard 17 is arranged around them to make electrical and mechanical connections, and images are created on the surface by matrix driving of the liquid crystal display panel. In order to mount the driving LSI, the motherboard substrate 17 is required to have a much larger outer diameter than the area of the facing glass 1.

Problems to be Solved by the Invention However, with the above configuration, the peripheral circuit board for mounting the driving LSI relative to the effective image display section becomes extremely large, which poses a major hindrance to the miniaturization of products. This will reduce the product value. Therefore, in recent years, there has been a strong desire to develop a technology for miniaturizing drive peripheral circuits.

In view of the above-mentioned problems, the present invention provides a liquid crystal display panel device in which the mounting of peripheral circuits for driving a liquid crystal display can be made extremely small and compact.

Means to Solve the Problem In order to achieve this object, the liquid crystal display panel device of the present invention extracts the scanning electrodes of the liquid crystal panel in the vertical direction using conductive patterns on both sides of the TPT array substrate. By this, driving LSIs are arranged and mounted in the vertical direction on the same both sides with the liquid crystal display panel in between, and the scanning electrode driving LSIs are
The mounting arrangement of the SI has been moved from the horizontal direction to the vertical direction.

Function With this configuration, the mounting arrangement of the matrix driving LSI can be changed from the conventional vertical and horizontal positions across the liquid crystal panel to only the vertical position, and the mounting arrangement of the matrix driving LSI can be changed from the conventional vertical and horizontal positions to the vertical position of the liquid crystal display panel unit. This makes it possible to shorten the outer diameter dimension.

EXAMPLE Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 1 shows a plan view of a liquid crystal display panel device according to an embodiment of the present invention.

In FIG. 1, reference numeral 1 denotes a facing glass, which has the same structure as the conventional example shown in FIG. 6. Reference numeral 2 denotes a TPT array substrate, and in order to mount the scanning electrode driving LSI on the upper and lower sides of the liquid crystal display panel, conductive patterns are drawn out to the upper and lower ends of the substrate.

3 is a motherboard substrate (c), which electrically connects and fixes the upper film carriers of the liquid crystal display panel;
4 is a motherboard (B), which is a board that electrically connects and fixes film carriers arranged under each of the liquid crystal display panels, 6 is a film carrier, and 6 to 11 are drive LSIs that constitute Y1 to Y6 drivers. It is.

FIG. 4 shows a back view corresponding to FIG. 1. In FIG. 4, reference numerals 12 to 16 send scanning signals to the scanning electrodes of the TFT array substrate 2' in order from above to perform matrix driving. LSI-oX1~x4 driver, 6'
is a film carrier, 22' to 26' are conductive patterns,
26 is a connection hole.

The main difference from the conventional example is that the conductive patterns 22' to
215' does not extend to one side of the TFT array substrate, but is connected to the opposite side via the connection hole 26, and connects x1 to x4 arranged on the motherboard substrate (6).
This point is electrically connected to the dry electrode (-) via the film carrier σ.

16 is a liquid crystal display) The motherboard (6) 3 and the motherboard 4, which are arranged vertically across the channel, are electrically connected and a signal pulse is sent to each X and Y dry node. Flexible printed board for connection to send in, 18
21 are conductive turns. These are the same structure as in FIG.

Figure 2 is a side cross-sectional view seen from the left side of Figure 1, and Figure 3 is a cross-sectional view of Figure 1 seen from the bottom. It is electrically connected and bent downward to shorten the horizontal dimension of the liquid crystal panel unit by utilizing the flexible effect.

The operation of the liquid crystal display panel configured as described above will be described below. First, facing glass 1 and TF
The liquid crystal display panel body, which is composed of a T-array substrate i and a liquid crystal material sealed therebetween, receives signals from Y1 to Y6 drivers 8 to 11 to all signal electrodes drawn out by conductive patterns 18 to 21 above and below. is applied. Furthermore, the conductive patterns 22 to 25 passing through the connection holes 26 from the left and right ends of the panel body are connected to the liquid crystal panel by sequentially applying scanning signals from the scanning electrodes x2 to x4 drivers 12 to 16 drawn out to the back side. A desired image is created on the main body effective image display section.

According to this embodiment as described above, compared to the outer diameter width dimension of the liquid crystal display panel device including the X driver for scanning electrodes arranged and mounted in the horizontal direction of the panel body described in the conventional example, By arranging and mounting the X-driver for scanning electrodes of the present invention shown in the figure at the lower end of the panel, the width and outer diameter of the device can be shortened. Above all, the effect will increase.

In this embodiment, the flexible print 16 that connects the motherboards (3) 3 and (g) 4 is bent at a right angle after mounting, but the bending angle is not only at the right angle but also by wrapping around that part. You can leave it there. Further, the present invention may be applied to either a transmissive type or a reflective type liquid crystal display panel device.

Furthermore, although this embodiment shows a case in which the X, to x4 drivers are arranged centrally on the motherboard (2) 4 at the lower end, it is also possible to arrange and mount them at both the upper and lower ends.

The biggest feature of this invention is the TFT array substrate! It has a structure in which conductive patterns are distributed and arranged on both sides. The connection processing between both sides of the array substrate that is necessary for this purpose is used in conjunction with hole processing, application of conductive paint, etc. that occur in the busy panel main body manufacturing process, and therefore does not incur much cost.

In addition, when implementing this on a transmission type TPT array substrate, in order to prevent unevenness in brightness, the conductive pattern on the back surface of the array substrate has the pattern shape of a preliminary conductive pattern 27 that keeps blank areas to the minimum necessary. .

For TPT array boards with relatively low packaging density, all driving LSIs are concentrated in one direction (on the motherboard).
It is also possible to easily eliminate the flexible printed circuit board 16.

Effects of the Invention As described above, according to the present invention, the L for driving a liquid crystal display panel
By mounting and fixing the SI on the same surface of the panel in the vertical direction via a film carrier, the outer diameter dimension of the liquid crystal display panel unit in the left and right direction can be shortened, which has a great practical effect. .

[Brief explanation of the drawing]

FIG. 1 is a plan view of a liquid crystal display panel device according to an embodiment of the present invention, FIG. 2 is a side sectional view thereof, FIG. 3 is a lower side view thereof, and FIG. 4 is a back view corresponding to FIG. 1. FIG. 6 is a plan view of a conventional liquid crystal display panel device, and FIG. 6 is a side sectional view thereof. 3...Motherboard board holder, 4...Motherboard board (b), 5, 5'-----Film carrier, 6-15...-Drive LSI, 2 ．．
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Claims (2)

[Claims] (1) A liquid crystal display panel incorporating a liquid crystal display panel and an integrated circuit element for driving the liquid crystal display panel, wherein conductive patterns for scanning electrodes of the liquid crystal display panel are drawn out and provided on both sides of an array substrate of the liquid crystal display panel, and the liquid crystal display panel A liquid crystal display panel device characterized in that the integrated circuit element is electrically coupled and mechanically fixed at the position of the conductive pattern via a film carrier and a printed circuit board. (2) A liquid crystal display according to claim 1, in which a conductive pattern for a scanning electrode is provided on the same surface of a liquid crystal display panel and drawn out in the vertical direction, and a film is interposed at a position in the vertical direction of the liquid crystal display panel. Panel device.