JPH0618385Y2 - Display device - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Use of the Invention] The present invention relates to a chip-on-glass type display device, and more particularly to a display device having an improved drive circuit connected to its display portion.

[Background of the invention]

As a conventional chip-on-glass type display device, there is, for example, a structure as shown in FIG. This chip-on-glass type display device (1) is, for example, liquid crystal or electroluminescence between a pair of insulating substrates (2) and (3) which are arranged to face each other and electrodes are arranged on the facing surfaces. To form a display part (4) by encapsulating, and the surface area of the one insulating substrate (3) is set larger than the surface area of the other insulating substrate (2), and the insulating substrate (3) A space part (5) is formed between the three side edges of the insulating board (2) and the three side edges of the insulating substrate (2), and a large number of the display parts (4) are displayed on the space part (5). Book output line (6) and a number of chip carriers (7) connected to these output lines (6) and input control lines (bus lines) (8) connected to these chip carriers (7) It was arranged. (9) shows the chip mounted on the chip carrier (7).

However, as shown in the figure, the planar shape of the above-mentioned conventional chip carrier (7) is a square, and the same number of output lines (6) are consumed from the three sides, and the input control line is provided on the other side.
Since the structure (8) is connected, the chip carrier (7) and the connecting wire are provided in the peripheral portion of the chip carrier (5).
It is necessary to secure a wide space (space) (5) for arranging (6, 8), so one insulating substrate
There is a problem that the outer shape of (3) is increased in size, and the shape of the entire display device is increased in size, which inevitably increases the weight and increases the cost.

[Purpose of device]

The present invention has been made by paying attention to such a conventional problem. By improving the shape of the chip carrier, the output line is led out from one side of the chip carrier, and the other two opposite sides of the chip carrier. Derive the input control line from
By eliminating the connection line from the remaining one side of the chip carrier, the space for arranging the connection line is narrowed, and it is possible to provide a display device in which the size of the substrate can be reduced. It is intended.

[Example of device]

The present invention will be described in detail below with reference to the embodiment shown in FIGS.

(1) is a chip-on-glass type display device according to the present embodiment, and this display device (11) is arranged so as to face each other, and a transparent electrode (not shown) (not shown) is patterned on the facing surface. Between the pair of insulative substrates (12) and (13), the display part (14) is constituted by encapsulation of liquid crystal or electroluminescence, for example, and the surface area of the one insulative substrate (13). Is set larger than the surface area of the other insulating substrate (12), and the three sides of the insulating substrate (13) and the insulating raw substrate (1
Space where both insulating boards do not overlap with the three sides of 2)
(15) is formed, and the display section (14) is provided on the space section (15).
Is equipped with a number of chip carriers (17) to which the chips (16) necessary for displaying are attached, and a number of output lines (18) and input control lines (19) connected to the chip carriers. There is.

The chip carrier (17) according to this embodiment is formed in a rectangular shape, and the long side of the chip carrier (17) is an insulating substrate (12, 1).
Place it on the space (15) so that it is parallel to the edge of 3),
Furthermore, the output line (18) is led out from one side of the long side. Further, the common control line (19) is arranged on the substrate (15) on the back side of the chip carrier (17), and the display drive integrated circuit (16) is provided via the opposite short sides of the chip carrier (17). Common control line to
(19) are connected respectively. Therefore each chip carrier
The lead wire is not led out to the long side on one side of (17).

By arranging the chip carrier (17) thus configured in the space portion (15), the space width a of the space portion (15) is narrower than that of the conventional example as shown in FIG. Therefore, it is possible to reduce the size of the insulating substrate (13) while securing the size of the display unit (14) as in the conventional example.
As a result, the display device can be made compact.

The connecting lands (20) of the large number of lead wires (17, 19) in the chip carrier (17) in the above structure are arranged at close intervals along the edge of the chip carrier as shown in FIG. Therefore, when soldering the lead wires (17, 19) to these lands (20), solder ridges are likely to occur between the lands, but in order to suppress the occurrence of this solder bridge,
By arranging the lands (20) in a slanted manner as shown in FIG. 4, the generation of solder bridges can be effectively prevented.

[Outline of device]

In the display device according to the present invention, a pair of insulating substrates (12, 13), which are partially opposed to each other, have display electrodes formed on the inner surfaces of the facing areas, and at least one of the electrodes is transparent. Between a pair of electrode substrates, a display element that is optically changed by applying a voltage to the display electrode is arranged, and a substrate positioned outside the facing range of the pair of insulating substrates (12, 13). In the display device in which a plurality of display driving integrated circuits (16) formed in a package type structure and connected to each other via a common control line (19) are mounted on the surface (15), Forming a package (17) of the integrated circuit (16) for oblong, and arranging the common control line (19) on the substrate surface (15) on the back side of the package, and the package (17)
The display driving integrated circuit (16) through the opposite short sides of
And a common control line (19) are connected to each of them, and an output line (18) for operating the display element is connected to one side of the long side.

[Effect of device]

Therefore, according to this display device, a package for an integrated circuit is provided.
Since (17) is formed in a rectangular shape, it is possible to narrow the substrate space for mounting this package, that is, the area of the substrate surface (15), and as a result, reduce the overall shape of the display device. There is an effect that can be. Also, according to this invention, since the crossover portion for connection can be eliminated,
No need for multi-layer wiring. Further, since the common control line is arranged on the substrate surface on the back side of the package and does not go out of the package when connecting the plurality of display driving integrated circuits,
Wiring space can be saved.

[Brief description of drawings]

FIG. 1 is an explanatory view of a display device according to the present invention, FIG. 2 is an enlarged explanatory view of a main part thereof, FIG. 3 is an enlarged plan view of a package, and FIG. 4 is a plan view showing an embodiment of its package shape. FIG. 5 is an enlarged view, FIG. 5 is an explanatory view of a conventional display device, and FIG. 6 is an enlarged explanatory view of a main part thereof. 11 …… Display device, 12,13 …… Insulating substrate 14 …… Display unit, 16 …… Space part 16 …… Chip, 17 …… Chip carrier 18 …… Output line, 19 …… Input control line 20)… …land

Claims (1)

[Scope of utility model registration request] 1. A pair of insulating substrates (12, 13), which are partially opposed to each other, have display electrodes formed on the inner surfaces of the opposed areas, and at least one of which is transparent. A display element that is optically changed by applying a voltage to the display electrode is provided between the electrode substrates, and
A plurality of display driving devices formed in a package structure and connected to each other through a common control line (19) on a substrate surface (15) located outside the facing range of the pair of insulating substrates (12, 13). In a display device on which an integrated circuit (16) is mounted, a package (17) of each of the display driving integrated circuits (16) is formed in a horizontally long shape, and the substrate surface (15) on the back side of the package is provided with A common control line (19) is provided, and the common control line is provided to the display driving integrated circuit (16) through the opposite short sides of the package (17).
(19) is connected to each of the display devices, and an output line (18) for operating a display element is connected to one of the long sides of the display device.