JPH11183922A - Integrated circuit - Google Patents

Abstract

PROBLEM TO BE SOLVED: To minimize an output terminal area and to provide a liquid crystal integrated circuit of a low price by cyclically providing the second output terminal of a second column provided in zigzag arrangement in a shape different from the shape of a first output terminal. SOLUTION: An output terminal 109 and the output terminal 111 are the output terminals of a first column output terminal group 101 and the output terminal 110 is the output terminal of a second column output terminal group 102. For the shape of the output terminal 110 of the second column output terminal group 102, the long side direction of a liquid crystal driving integrated circuit 120 is more than the interval between the output terminal 109 and the output terminal 111 of the first column output terminal group 101 and the short side direction of the liquid crystal driving integrated circuit 120 is turned to a length to be more than a prescribed area. That is, by turning the output terminal 110 of the second column to a horizontally long rectangle, the area of the output terminal 110 holds the prescribed area by the reasons of connection strength and connection resistance, etc. Then, an output terminal vertical width is shortened while keeping the width of the output electrodes 112 of the output terminals 109 with each other of the first column adjacent to each other and the distance of a gap 115.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a liquid crystal driving integrated circuit of the type mounted on a liquid crystal display substrate.

[0002]

2. Description of the Related Art A liquid crystal display device in which a liquid crystal driving integrated circuit is mounted on a liquid crystal display substrate (COG type liquid crystal display device).
As one of the problems in the above, there is a problem that a liquid crystal driving integrated circuit is made horizontally long by a multi-output terminal.

For this reason, there is a liquid crystal driving integrated circuit in which the output terminals of the liquid crystal driving integrated circuit are arranged in a staggered manner to shorten the space of the output terminal in the long side direction of the liquid crystal driving integrated circuit.

FIG. 4 is a schematic view showing an input portion of a COG type liquid crystal display device of the above-mentioned type in which a liquid crystal driving integrated circuit 720 is mounted on a liquid crystal display substrate 723.

In the figure, a first column output terminal group 701 is a plurality of output terminals provided along the output side of the liquid crystal drive integrated circuit 720, and a second column output terminal group 702 is a plurality of output terminal groups.
There are a plurality of output terminals arranged in a staggered arrangement with respect to one.

The output electrode group 703 is the first column output electrode group 70
A plurality of electrodes for transmitting output signals from the first and second column output electrode groups 702 to pixels in the liquid crystal display substrate 723 are shown.
The input electrode group 704 is a plurality of input terminals for power and input signals, and the input electrode group 722 is a plurality of electrodes for 720 inputting power and input signals to the liquid crystal driving integrated circuit.

The horizontal width 705 of the integrated circuit is
20 indicates the horizontal width, and the integrated circuit vertical width 721 indicates the vertical width of the liquid crystal drive integrated circuit 720. The output terminal width 706 indicates the horizontal length from end to end of the first column output terminal group 701 and the second column output terminal group 702, and the output terminal vertical width 707 indicates the first
The vertical length from end to end of the column output terminal group 701 and the second column output terminal group 702 is shown.

[0008] The logic area 708 is the liquid crystal driving integrated circuit 7
20 is a region where the transistor gate is formed. The output terminal 709 and the output terminal 711 are output terminals of the first column output terminal group, and the output terminal 710 is the output terminal of the second column output terminal group.

Output electrodes 712, 713, and 714 are output terminals 709, 710, and 710, respectively.
These are electrodes for extracting an output signal from the output terminal 711. The gap 715 is formed between the output electrode 712 and the output electrode 71.
3, the gap 716 indicates the distance between the output electrode 713 and the output electrode 714.

The output terminals of the second column output terminal group 701 have the same shape and direction as the output terminals of the first column output terminal group 701.

[0011]

Since the cost of an integrated circuit is generally proportional to the area, the smaller the output electrode area, which is the product of the output terminal width 706 and the output terminal length 707, in the integrated circuit, the lower the cost.

However, the area of the output terminal must be larger than a predetermined area for reasons such as connection strength and connection resistance. Further, adjacent first row output terminals must be provided at positions separated by the distance of the output electrode 713, the gap 715, and the gap 716. The output terminal width 706 and the output terminal length 707 are determined by the above elements.
Is determined, and the integrated circuit width 705 and the integrated circuit height 72
1 is decided.

In particular, in recent integrated circuit processes, the size of the logic region 708 is reduced due to the progress of miniaturization, so that the reduction of the output terminal region poses a problem.

[0014]

According to the present invention, in order to solve the above-mentioned problems, a power supply terminal for inputting power, a signal input terminal for inputting a signal, and an output terminal are mounted on a liquid crystal substrate. In the integrated circuit for driving a rectangular liquid crystal, the output terminals are provided in a first row of output terminals provided along a long side of the integrated circuit and in a staggered arrangement with respect to the first row of output terminals. The second output terminal is composed of the output terminals in a second row, and the second output terminal is periodically provided with a shape different from the shape of the first output terminal, and a power supply terminal for inputting power and a signal for inputting a signal. In an integrated circuit for driving a rectangular liquid crystal mounted on a liquid crystal substrate composed of a signal input terminal and an output terminal, the output terminal is a first column output terminal provided along a long side of the integrated circuit. And the output terminal of the first column The first output terminal is composed of the second row of output terminals provided in a staggered arrangement, and the shape of the first output terminal is a polygon long in the short side direction of the integrated circuit, and the shape of the second output terminal is the shape of the integrated circuit. 2. A polygon which is long in a long side direction.
Is a polygon symmetrical with respect to the center line in the short side direction of the integrated circuit, and the number of sides of the outer shape of the first output terminal and the outer shape of the second output terminal are An integrated circuit for driving a type of rectangular liquid crystal mounted on a liquid crystal substrate, which is composed of a power supply terminal for inputting power, a signal input terminal for inputting a signal, and an output terminal with different numbers of sides. Wherein the output terminals comprise a first column of output terminals provided along a long side of the integrated circuit and a second column of output terminals provided in a staggered arrangement with respect to the first column of output terminals. The length of the second output terminal in the long side direction of the integrated circuit is equal to or larger than the distance between the first row of output terminals and the adjacent first output terminal, and the outer shape of the output terminal is in the short side direction of the integrated circuit. The number of sides of the outer shape of the first output terminal. The number of outer sides of the second output terminals different playable.

(Operation) In the conventional liquid crystal driving integrated circuit shown in FIG. 4, the output terminals of the second column output terminal group 702 are the first terminals.
Since the output terminals of the column output terminal group 701 have the same shape and direction as the output terminals, the vertical width of the output terminals is increased and the output terminal area is increased.

Therefore, as shown in FIG. 1, the output terminals in the second row are formed in a horizontally long rectangular shape so that the area of the output terminals can maintain a predetermined area due to connection strength and connection resistance, and the like. The gist of the present invention is to shorten the vertical width of the output terminal while keeping the width of the output electrode and the distance of the gap between the output terminals of the column.

Further, as shown in FIGS. 2 and 3, the shapes of the first column output terminal and the second column output terminal are not limited to rectangles.

[0018]

(Embodiment 1) FIG. 1 is a schematic view of an input portion of a COG type liquid crystal display device of the above-described type in which a liquid crystal driving integrated circuit 120 is mounted on a liquid crystal display substrate 123 according to the present invention. .

In the figure, a first column output terminal group 101 is a plurality of output terminals provided along the output side of the liquid crystal driving integrated circuit 120, and a second column output terminal group 102 is a output terminal group 10
There are a plurality of output terminals arranged in a staggered arrangement with respect to one.

The output electrode group 103 is the first column output electrode group 10
A plurality of electrodes for transmitting output signals from the first and second column output electrode groups 102 to pixels in the liquid crystal display substrate 123 are shown.
The input electrode group 104 is a plurality of input terminals for power and input signals, and the input electrode group 122 is a plurality of electrodes for inputting power and input signals to the liquid crystal driving integrated circuit 120.

The width 105 of the integrated circuit corresponds to the liquid crystal driving integrated circuit 1.
20 indicates the horizontal width, and the integrated circuit vertical width 121 indicates the vertical width of the liquid crystal driving integrated circuit 120. The output terminal width 106 indicates the horizontal length from end to end of the first column output terminal group 101 and the second column output terminal group 102, and the output terminal vertical width 107 indicates the first
The vertical length from end to end of the column output terminal group 101 and the second column output terminal group 102 is shown.

The logic area 108 is the liquid crystal driving integrated circuit 1
20 is a region where the transistor gate is formed. The output terminals 109 and 111 are output terminals of the first column output terminal group, and the output terminal 110 is an output terminal of the second column output terminal group.

Output electrode 112, output electrode 113, and output electrode 114 are output terminal 109, output terminal 110,
These are electrodes for extracting an output signal from the output terminal 111. The gap 115 is provided between the output electrode 112 and the output electrode 11.
The gap 116 indicates the distance between the output electrode 113 and the output electrode 114.

Here, the shape of the output terminal 110 of the second column output terminal group 101 is such that the long side direction of the liquid crystal drive integrated circuit 120 is the output terminal 109 and the output terminal 1 of the first column output terminal group 101.
The length is equal to or longer than the interval of 11, and the length of the short side direction of the liquid crystal drive integrated circuit 120 is equal to or longer than a predetermined area.

(Embodiment 2) FIG. 2 is a schematic view of an input part of a COG type liquid crystal display device of the above-mentioned type in which a liquid crystal driving integrated circuit 220 is mounted on a liquid crystal display substrate 223 according to the present invention.

In the figure, a first column output terminal group 201 is a plurality of output terminals provided along the output side of the liquid crystal drive integrated circuit 220, and a second column output terminal group 202 is a plurality of output terminals 20.
There are a plurality of output terminals arranged in a staggered arrangement with respect to one.

The output electrode group 203 is the first column output electrode group 20.
A plurality of electrodes for transmitting output signals from the first and second column output electrode groups 202 to pixels in the liquid crystal display substrate 223 are shown.
The input electrode group 204 is a plurality of input terminals for power and input signals, and the input electrode group 222 is a plurality of electrodes for inputting power and input signals to the liquid crystal drive integrated circuit 220.

The horizontal width 205 of the integrated circuit corresponds to that of the liquid crystal driving integrated circuit 2.
20 indicates the horizontal width, and the integrated circuit vertical width 221 indicates the vertical width of the liquid crystal drive integrated circuit 220. The output terminal width 206 indicates the horizontal length from end to end of the first column output terminal group 201 and the second column output terminal group 202, and the output terminal vertical width 207 is the first
The vertical length from end to end of the column output terminal group 201 and the second column output terminal group 202 is shown.

The logic area 208 is the liquid crystal driving integrated circuit 2
20 is a region where the transistor gate is formed. The output terminal 209 and the output terminal 211 are output terminals of the first column output terminal group, and the output terminal 210 is the output terminal of the second column output terminal group.

The output electrode 212, the output electrode 213, and the output electrode 214 are an output terminal 209, an output terminal 210,
An electrode for extracting an output signal from the output terminal 211. The gap 215 is formed between the output electrode 212 and the output electrode 21.
3, and the gap 216 indicates the distance between the output electrode 213 and the output electrode 214.

Here, the output terminal 209 of the first column output terminal group 201 and the output terminal 21 of the second column output terminal group 201
The shape of 0 is a pentagon, and the output terminals of the first and second rows are interchanged like a key and a lock.

Output terminal 210 of second column output terminal group 201
Is longer than the distance between the output terminals 209 and 211 of the first column output terminal group 201, and the shorter side of the liquid crystal drive integrated circuit 220 is larger than a predetermined area. Length.

(Embodiment 3) FIG. 3 is a schematic view of an input part of a COG type liquid crystal display device of the above type in which a liquid crystal driving integrated circuit 320 is mounted on a liquid crystal display substrate 323 according to the present invention.

In the figure, a first column output terminal group 301 is a plurality of output terminals arranged along the output side of the liquid crystal driving integrated circuit 320, and a second column output terminal group 302 is a plurality of output terminals 30.
There are a plurality of output terminals arranged in a staggered arrangement with respect to one.

The output electrode group 303 is the first column output electrode group 30
A plurality of electrodes for transmitting output signals from the first and second column output electrode groups 302 to pixels in the liquid crystal display substrate 323 are shown.
The input electrode group 304 is a plurality of input terminals for power and input signals, and the input electrode group 322 is a plurality of electrodes for inputting power and input signals to the liquid crystal driving integrated circuit 320.

The integrated circuit width 305 is the same as the liquid crystal driving integrated circuit 3.
20 indicates the horizontal width, and the integrated circuit vertical width 321 indicates the vertical width of the liquid crystal drive integrated circuit 320. The output terminal width 306 indicates the horizontal length from end to end of the first column output terminal group 301 and the second column output terminal group 302, and the output terminal vertical width 307 indicates the first width.
The vertical length from end to end of the column output terminal group 301 and the second column output terminal group 302 is shown.

The logic area 308 is the liquid crystal driving integrated circuit 3
20 is a region where the transistor gate is formed. The output terminal 309 and the output terminal 311 are output terminals of the first column output terminal group, and the output terminal 310 is the output terminal of the second column output terminal group.

The output electrode 312, the output electrode 313, and the output electrode 314 are an output terminal 309, an output terminal 310,
These are electrodes for extracting an output signal from the output terminal 311. The gap 315 is formed between the output electrode 312 and the output electrode 31.
3, and the gap 316 indicates the distance between the output electrode 313 and the output electrode 314.

Here, the output terminals 309 of the first column output terminal group 301 are pentagonal, and the second column output terminal group 301
The shape of the output terminal 310 is hexagonal. 1st row and 2nd
The output terminals of the columns are swapped like a key and a lock.

Output terminal 310 of second column output terminal group 301
Is longer than the distance between the output terminals 309 and 311 of the first column output terminal group 301, and the shorter side of the liquid crystal drive integrated circuit 320 is larger than a predetermined area. Length.

Although not described further here, various other polygons such as an octagon can be considered.

[0042]

According to the present invention, a low-cost liquid crystal integrated circuit can be manufactured by minimizing the output terminal area by the integrated circuit according to the present invention.

[Brief description of the drawings]

FIG. 1 is a diagram of an example in which an output terminal of the present invention is a square.

FIG. 2 is a diagram showing an example in which the output terminal of the present invention is a pentagon.

FIG. 3 is a diagram illustrating an example in which output terminals of the present invention are pentagonal and hexagonal.

FIG. 4 is a diagram of an example of a conventional output terminal.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 101 First column output terminal group 102 Second column output terminal group 109 Output terminal 120 Liquid crystal drive integrated circuit 123 Liquid crystal display substrate

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI H01L 27/04 H01L 27/04 E 21/822

Claims (7)

[Claims] 1. An integrated circuit for driving a rectangular liquid crystal mounted on a liquid crystal substrate, comprising a power supply terminal for inputting power, a signal input terminal for inputting a signal, and an output terminal. The output terminal includes a first row of output terminals provided along a long side of the integrated circuit and a second row of output terminals provided in a staggered arrangement with respect to the first row of output terminals. Wherein said output terminal periodically has a shape different from the shape of said first output terminal. 2. An integrated circuit for driving a rectangular liquid crystal mounted on a liquid crystal substrate, comprising: a power supply terminal for inputting power, a signal input terminal for inputting a signal, and an output terminal. The output terminal includes a first column of output terminals provided along the side of the integrated circuit and a second column of output terminals provided in a staggered arrangement with respect to the first column of output terminals. An integrated circuit, wherein the shape of the output terminal is long in the short side direction of the integrated circuit, and the shape of the second output terminal is long in the long side direction of the integrated circuit. 3. The integrated circuit according to claim 1, wherein an outer shape of the output terminal is symmetrical with respect to a center line in a short side direction of the integrated circuit. 4. The integrated circuit according to claim 1, wherein the number of sides of the outer shape of the first output terminal is different from the number of sides of the outer shape of the second output terminal. 5. An integrated circuit for driving a rectangular liquid crystal mounted on a liquid crystal substrate, comprising a power supply terminal for inputting power, a signal input terminal for inputting a signal, and an output terminal. The output terminals are formed of a first column of output terminals provided along the side of the integrated circuit and a second column of output terminals provided in a staggered arrangement with respect to the first column of output terminals. 2. The integrated circuit according to claim 1, wherein a length of the second output terminal in a long side direction of the integrated circuit is equal to or larger than a distance between the first row of output terminals and an adjacent first output terminal. 6. The integrated circuit according to claim 4, wherein an outer shape of the output terminal is symmetrical with respect to a center line in a short side direction of the integrated circuit. 7. The integrated circuit according to claim 4, wherein the number of outer sides of the first output terminal is different from the number of outer sides of the second output terminal.