JPH10213814A - Matrix type display device and anular magnetic member, and their manufacture - Google Patents

Abstract

PROBLEM TO BE SOLVED: To magnetically couple image signal lines which are formed side by side, to reducing signal delay by shortening the inversion time of a flowing current, and to easily obtain a high-definition large screen image at low cost by forming the image signal lines closely rough to cause mutual inducing operation. SOLUTION: A dot inversion system which inverts the polarities of odd and even signal lines on every scan allows currents in mutually opposite directions to flow to two image signal lines 2a and 2b which are formed side by side, and magnetic fields having the mutually different polarities are produced around those image signal lines. Then the image signal lines 2a and 2b are formed closely enough to cause mutual inducing operation. Consequently, the currents Sa and Sb in the mutually opposite directions become easy to flow to those image signal lines 2a and 2b through the mutually inducing operation called mutual inductance to shorten the inversion time of the currents flowing to the image signal lines 2a and 2b of the dot inversion system.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dot inversion type matrix in which the potential of a pixel electrode with respect to a counter electrode of a certain pixel is inverted with respect to the potential of a pixel electrode with respect to a counter electrode of a pixel adjacent to the pixel. The present invention relates to a type display device.

[0002]

2. Description of the Related Art A matrix type display device is a display device in which pixels and switching elements for selectively applying a voltage to the pixels are arranged in a matrix on a display electrode substrate.

FIG. 36 is a system configuration diagram of a conventional matrix type display device. In FIG. 36, 101 is a power supply unit, 102 is a signal control unit, 103 is a scanning line drive circuit, 1
Reference numeral 04 denotes an image signal line driving circuit, and reference numeral 105 denotes a display panel. The power supply unit 101 generates various voltages necessary for driving, and supplies the voltages to the scanning line driving circuit 103 and the image signal line driving circuit 104. Further, the signal control unit 102 generates various signals necessary for display from the input video signal and the synchronization signal, and transmits the signals to the scanning line driving circuit 103 and the image signal line driving circuit 104. The scanning line driving circuit 103 uses the signal sent from the signal control unit 102 to
5, and the image signal line driving circuit 104
The display panel 1 is controlled by a signal sent from the signal control unit 102.
05 is driven.

FIG. 37 is a circuit diagram of a display electrode substrate of a conventional matrix type display device. In the drawing, reference numeral 1 denotes a scanning line connected to the scanning line driving circuit 103 formed in one direction on a display electrode substrate, and 2 denotes an image signal formed in a direction orthogonal to the scanning line. Line drive circuit 1
An image signal line 3 connected to the TFT 04 is a switching element TFT (Thin Film) comprising a gate electrode 4 connected to the scanning line 1 and a source electrode 5 and a drain electrode 6 connected to the image signal line 2. Transistor), 7 is a pixel electrode connected to the drain electrode 6, 8 is a counter electrode, and a dielectric between the pixel electrode 7 and the counter electrode 8 is a dielectric material whose light transmittance changes according to an applied voltage. A certain liquid crystal 9 is sealed, and the pixel electrode 7, the counter electrode 8, and the liquid crystal 9 constitute a capacitor. A rectangular area surrounded by the scanning lines 1 and the image signal lines 2 is a pixel 10.

In such a conventional matrix type display device, the opening and closing of the matrix are controlled by the scanning signal of the scanning line 1.
By the FT3, the image signal of the image signal line 2 is
Is written to the pixel electrode 7. And this pixel electrode 7
The liquid crystal 9 on the pixel electrode 7 is driven by the potential difference between this voltage and the voltage of the counter electrode 8 to change the transmittance of visible light, and an image signal is displayed visually.

In general, a display element using a liquid crystal is polarized when continuous application of a DC voltage to the pixel electrode 7 adheres to impurity ions, thereby deteriorating its display characteristics. In order to prevent the deterioration, it is necessary to perform AC driving in which voltages having opposite polarities are alternately applied to the pixel electrodes 7. As one method therefor, by inverting the polarity of the odd-numbered image signal line 7 and the polarity of the even-numbered image signal line 7 for each scan, the position of the pixel electrode 7 with respect to the counter electrode 8 of a certain pixel 10 is reduced. There is a dot inversion method in which the potential is inverted with respect to the potential of a pixel electrode with respect to a counter electrode of a pixel adjacent to the pixel 10. FIG. 38 illustrates this dot inversion method.
In the (n + 1) th cycle, the potential of the pixel electrode 7 with respect to the counter electrode 8 shown in FIG. 38A is inverted to the potential of the pixel electrode 7 with respect to the counter electrode 8 shown in FIG.
Note that the number of inversions is generally about 60 Hz.

[0007]

In the above-mentioned conventional matrix type display device, when the number of pixels 10 forming a matrix is increased to display a high-definition, large-screen image, the scanning lines 1 and The wiring of the image signal line 2 becomes longer, and the resistance and capacitance of these wirings increase. In such a case, a signal delay becomes large, an image is not displayed normally, and it is difficult to obtain a high-definition, large-screen image. In addition, the scanning line 1 and the image signal line 2 have low resistance and low capacitance. Has a problem that high-cost material development is required.

SUMMARY OF THE INVENTION The present invention has been made to solve such a problem, and it is possible to reduce a signal delay without developing a high-cost material for reducing the resistance and capacitance of a scanning line and an image signal line. It is another object of the present invention to provide a matrix type display device capable of easily and inexpensively obtaining a high-definition and large-screen image.

[0009]

According to a first aspect of the present invention, there is provided a matrix type display device, wherein a pixel electrode, a part of a counter electrode disposed opposite to the pixel electrode, and one of the pixel electrode and the counter electrode are provided. Pixels formed by a dielectric material whose light transmittance changes according to an applied voltage, are enclosed in a matrix, and an image signal line formed in one direction with respect to these pixels is arranged in a matrix. In a matrix display device for supplying an image signal through a switching element driven by a scanning signal, the image signal lines adjacent to each other are arranged so as to be close to each other so that mutual induction occurs, and And inverting the potential of the pixel electrode with respect to the counter electrode with respect to the potential of the pixel electrode with respect to the counter electrode of a pixel adjacent to the pixel.

Further, in the matrix type display device according to the second aspect of the present invention, an image signal line of a plurality of image signal lines which are close to each other to the extent that mutual induction occurs and is adjacent to the plurality of image signal lines. Other image signal lines on the image signal line side among a plurality of image signal lines that are close to each other to the extent that mutual induction occurs are formed side by side so that mutual induction occurs. It was done.

Further, the matrix type display device according to the third invention further comprises an annular magnetic member formed so as to surround a plurality of image signal lines which are close to each other to the extent that mutual induction occurs. is there.

Further, in the matrix type display device according to a fourth aspect of the present invention, the pixel electrode, a part of the counter electrode disposed opposite to the pixel electrode, and a portion between the pixel electrode and the part of the counter electrode are provided. Pixels formed by a dielectric material whose light transmittance changes according to an applied voltage are arranged in a matrix, and image signal lines formed in one direction with respect to these pixels are formed by a scanning signal. In a matrix type display device for supplying an image signal via a driven switching element, an annular conductive member is placed between the adjacent image signal lines so as to be close to the image signal line to such an extent that mutual induction occurs. And the potential of the pixel electrode with respect to the counter electrode of the pixel is inverted with respect to the potential of the pixel electrode with respect to the counter electrode of a pixel adjacent to the pixel.

Further, in the matrix type display device according to the fifth invention, the annular conductive members are formed continuously between the image signal lines formed adjacent to each other.

Further, a matrix type display device according to a sixth aspect of the present invention surrounds an image signal line and an annular conductive member formed so close to the image signal line that mutual induction occurs. And a ring-shaped magnetic member formed by the above.

Further, in the matrix type display device according to the seventh invention, the scanning lines formed in one direction and the image signal lines formed in the other direction are substantially orthogonal to each other. It is.

Further, in the ring-shaped magnetic member according to the eighth invention, mutual induction occurs between the first magnetic film pattern having the groove and the first magnetic film pattern via an insulating film. An insulating film between the image signal line and the wire above the first magnetic film pattern, above the image signal line and the wire formed in the groove so as to be close to each other. And a second magnetic film pattern magnetically connected to the first magnetic film pattern.

Further, a method of manufacturing a ring-shaped magnetic member according to a ninth invention includes a step of forming a first magnetic film pattern; a step of forming a groove in the first magnetic film pattern;
An image signal line and an electric wire formed in the groove so as to be close to each other to such an extent that mutual induction occurs via an insulating film between the first magnetic film pattern and the first magnetic film pattern;
Forming a second magnetic film pattern that is magnetically connected to the first magnetic film pattern via an insulating film between the image signal line and the electric wire above the magnetic film pattern. It is provided.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Referring to FIGS. 1 to 35,
An embodiment of the present invention will be described.

Embodiment 1 First, a first embodiment of the present invention will be described with reference to FIGS.

FIG. 1 is a circuit diagram showing a matrix type display device according to Embodiment 1 of the present invention. Referring to FIG. 1, reference numeral 1 denotes scanning lines 2a, 2a, 2
The image signal lines b, 2c, and 2d are arranged in a direction perpendicular to the scanning lines, two lines at a time so that mutual induction occurs, and 3 is connected to the scanning lines. The switching element includes a gate electrode 4 and a source electrode 5 and a drain electrode 6 connected to the image signal line 2c. In this embodiment, a TFT is used. 7 is a pixel electrode connected to the drain electrode 6, 8
Is a counter electrode, the pixel electrode 7 and the counter electrode 8
A liquid crystal 9, which is a dielectric material whose light transmittance changes according to an applied voltage, is enclosed between them, and a capacitor is constituted by the pixel electrode 7, the counter electrode 8, and the liquid crystal 9. Then, the scanning line 1 and the image signal line 2
Two pixels 10 are formed in a rectangular area surrounded by a and 2c and 2b and 2d.

In such a matrix type display device, the image signals of the image signal lines 2a, 2b, 2c and 2d are
The data is written to the pixel electrode 7 of each pixel 10 by the TFT 3 that is opened and closed by the scanning signal of the scanning line 1. And
The liquid crystal 9 on the pixel electrode 7 is driven by the potential difference between the voltage of the pixel electrode 7 and the voltage of the counter electrode 8 to change the transmittance of visible light from the backlight. The image signal is visually displayed in color, but the dot inversion method in which the polarity of the odd-numbered signal line and the polarity of the even-numbered signal line are inverted for each scan in order to prevent the display characteristics from deteriorating. , Image signal line 2
a and 2b respectively have currents Sa and Sb in different directions.
Flows.

Generally, as shown in FIG. 2A, a current S flows from the back of the paper toward the surface of the paper in the image signal line 2.
Flows, a magnetic field J is generated around it in the direction shown. Therefore, when currents in different directions flow through the two image signal lines formed side by side, magnetic fields having different polarities are generated around these image signal lines.

Therefore, the first embodiment shown in FIG.
In the matrix type display device of the above, since the image signal lines 2a and 2b are formed so as to be close to each other to such an extent that mutual induction occurs, these image signal lines 2a and 2b are formed.
The magnetic field generated at b is as shown in FIG. 2B when viewed from the cross-sectional direction of the image signal line. That is, a magnetic field Ja1 not intersecting with the image signal line 2b and a magnetic field Ja2 intersecting with the image signal line 2b are generated around the image signal line 2a in which the current Sa flows from the back surface of the paper toward the surface of the paper. A magnetic field Jb1 that does not intersect with the image signal line 2a and a magnetic field Jb2 that does not intersect with the image signal line 2a are provided around the image signal line 2b through which the current Sb flows from the paper surface to the paper back surface.
Occur in the direction shown.

Of these magnetic fields, the magnetic fields Ja2 and Jb2 crossing the image signal line of the other party in mutually different directions are magnetically coupled to cancel each other, the overall magnetic field is reduced, and the currents in different directions are different. Sa and Sb flow easily. Due to this mutual induction effect, also called mutual inductance, currents Sa and Sb in different directions tend to flow in these image signal lines 2a and 2b, and the time required for reversing the current flowing in the image signal lines in the dot inversion method is reduced. Matrix type that can reduce the signal delay without developing costly materials for lowering the resistance and capacitance of the scanning lines and image signal lines, and obtain high-definition, large-screen images easily and inexpensively. A display device can be realized.

In the above-described embodiment, the two image signal lines 2a and 2b formed side by side are formed close to each other over the entire length of the illustrated portion, and are also continuous in the scanning line direction. Although the description has been given of the case in which the two image signal lines 2a and 2b formed adjacent to each other are not necessarily formed close to each other over the entire length of the illustrated portion, it is also possible to perform scanning. It is not necessary to form them continuously in the line direction, and the same effects as in the above embodiment can be obtained.

Embodiment 2 FIG. Next, a second embodiment of the present invention will be described with reference to FIGS.

FIG. 3 is a circuit diagram showing a matrix type display device according to the second embodiment of the present invention. Referring to FIG. 3, in the second embodiment, the image signal line 2a, which is also two electric wires and is formed so as to be close to each other to the extent that mutual induction occurs in the first embodiment, 2
An annular magnetic member 50 is formed surrounding b. Other configurations are the same as those of the first embodiment shown in FIG.

FIG. 4 is a perspective view showing the annular magnetic member. In FIG. 4, reference numeral 17 denotes a glass substrate serving as a display electrode substrate, 30 denotes an insulating film made of silicon dioxide formed on the glass substrate 17, and 2a and 2b are close to each other to the extent that mutual induction occurs. Two image signal lines 50 formed side by side are ring-shaped magnetic members formed on the glass substrate 17 via the insulating film 30 made of silicon dioxide so as to surround the image signal lines 2a and 2b. It is.

Next, a method of manufacturing the annular magnetic member 50 will be described with reference to FIGS. 5 to 27 are cross-sectional views showing the first to 23rd steps of the process of manufacturing the annular magnetic member 50 shown in FIG.

First, an insulating film 30 made of silicon dioxide is formed on a glass substrate 17 shown in FIG. 5 by a CVD (Chemical Vapor Deposition) method as shown in FIG.
Deposit 00 °. The insulating film 30 may be the same film as the gate insulating film. Next, an opening 31a is formed in the resist 31 as shown in FIG. 8 by applying a resist 31 on the insulating film 30 and passing through a photomechanical process as shown in FIG.

Referring to FIG. 9, iron (Fe), nickel (Ni), cobalt (Co), zirconium (Z
n), a magnetic film 32 made of molybdenum (Mo) or an alloy thereof is deposited to a thickness of 1500 to 2 μm by a sputtering method, and a resist 3 is formed together with the resist 31 by a lift-off method.
By removing the magnetic film 32 above the first magnetic film 32, a first magnetic film pattern 32m is formed as shown in FIG. next,
Referring to FIG. 11, a resist 33 is applied on silicon dioxide film 30 and first magnetic film pattern 32m, and then a photolithography process is performed to form opening 33a in resist 33 as shown in FIG. To form And FIG.
As shown in the figure, by ion milling using Ar gas,
The first magnetic film pattern 32m is dry-etched until the magnetic film thickness becomes 500-1 μm, so that the groove 3 is formed.
The lower part 32n of the annular magnetic member 50 having 2a is formed.

Next, referring to FIG. 14, an insulating film 34 made of silicon dioxide is formed by CVD at a temperature of 250 to 5000 °.
After the deposition, along with the resist 33 by a lift-off method,
By removing the insulating film 34 on the resist 33, as shown in FIG. 15, the silicon dioxide film 34m is left in the groove 32a in the lower portion 32n of the annular magnetic member 50. Then, the resist 35 is applied as shown in FIG. 16 and then a photolithography process is performed to form an opening 35a in the resist 35 as shown in FIG. Next, referring to FIG. 18, a conductive film 36 made of copper (Cu), aluminum (Al), silver (Ag) or an alloy thereof is deposited on resist 35 by sputtering at 500 to 5000 °. And the resist 3 together with the resist 35 by the lift-off method.
As shown in FIG. 19, by removing the conductive film 36 on the groove 5, the groove 3 formed in the lower portion 32n of the annular magnetic member 50 is formed.
On the silicon dioxide film 34m in 2a, two image signal lines 2a and 2b, which are wirings, are formed so as to be close to each other so that mutual induction occurs.

Then, as shown in FIG.
After applying the photolithography process after applying
An opening 37a is formed in the resist 37 as shown in FIG. Next, as shown in FIG. 22, an insulating film 38 made of silicon dioxide is formed on the resist 37 by a CVD method at a temperature of 750.degree.
After depositing 1.9 μm, the resist 37 is lifted off.
At the same time, by removing the insulating film 38 on the resist 37, as shown in FIG. 23, the silicon dioxide film 38m is left in the groove 32a in the lower part 32n of the annular magnetic member 50.

Then, referring to FIG.
After applying the photolithography process after applying
An opening 39a is formed in the resist 39 as shown in FIG.
Next, as shown in FIG. 26, iron (Fe), nickel (N
i), magnetic film 40 made of cobalt (Co), zirconium (Zn), molybdenum (Mo) or an alloy thereof
Is deposited in a thickness of 500 to 1 μm by a sputtering method, and a magnetic film 4
0, the upper portion 40 of the annular magnetic member 50, which is the second magnetic film pattern, is formed as shown in FIG.
m, the lower part 3 of the annular magnetic member 50 is formed.
An annular magnetic member 50 is formed together with 2n. Note that the entire height h of the annular magnetic member 50 must be 2 μm or less in relation to other portions on the glass substrate 17 which is a display electrode substrate.

As described in the first embodiment, generally, as shown in FIG. 28A, two image signal lines formed side by side so that mutual induction occurs. In FIGS. 2a and 2b, a magnetic field Ja1 that does not intersect with the image signal line 2b and a magnetic field Ja2 that intersects with the image signal line 2b are shown around the image signal line 2a through which the current Sa flows from the back surface to the paper surface. Image signal line 2b which is generated at the time and current Sb flows from the surface of the paper toward the back of the paper.
, A magnetic field Jb1 that does not intersect with the image signal line 2a
Then, a magnetic field Jb2 crossing the image signal line 2a is generated in the illustrated direction.

Of these magnetic fields, the magnetic fields Ja2 and Jb2 crossing the image signal line of the other party and in mutually different directions are magnetically coupled and cancel each other, but the magnetic field Ja1 not crossing the image signal line of the other party. And Jb1 are not magnetically coupled and remain without canceling each other. Therefore,
In the matrix type display device according to the second embodiment,
As shown in FIG. 3, two image signal lines 2 a and 2 formed close to each other to such an extent that mutual induction occurs.
b to form an annular magnetic member 50,
Since the magnetic coupling between the image signal lines 2a and 2b is strengthened, these magnetic fields Ja1 and Jb1 are also contained in the annular magnetic member 50 and cancel each other. That is, as shown in FIG.
0, the magnetic field Ja composed of the magnetic fields Ja1 and Ja2, and the magnetic field Jb composed of the magnetic fields Jb1 and Jb2, also encapsulated in the annular magnetic member 50, cancel each other out. The overall magnetic field is smaller than that of the matrix type display device shown in FIG. Therefore, currents Sa and Sb in different directions are more likely to flow through these image signal lines 2a and 2b, and the reversal time of the current flowing through the image signal lines in the dot inversion method is further reduced, so that the scanning lines and the image signal lines are reduced. The signal delay can be further reduced without the development of a high-cost material for reducing the resistance and the capacitance, and a matrix type display device capable of easily and inexpensively obtaining a high-definition and large-screen image can be realized.

Further, in the above-described embodiment, the case where one annular magnetic member 50 is formed continuously in the scanning line direction outside the matrix region has been described, but the annular magnetic members 50 are close to each other. It may be formed anywhere as long as it surrounds the two image signal lines 2a and 2b formed side by side, may be formed in a matrix area, or may not be continuous in the scanning line direction. Also, a plurality may be formed,
The same effects as those of the above-described embodiment can be obtained.

Further, in the above-described embodiment, the two image signal lines 2a and 2b formed side by side with each other are formed close to each other over the entire length of the illustrated portion, and are also continuous in the scanning line direction. Although the description has been given of the case in which the two image signal lines 2a and 2b formed adjacent to each other are not necessarily formed close to each other over the entire length of the illustrated portion, it is also possible to perform scanning. It is not necessary to form them continuously in the line direction, and the same effects as in the above embodiment can be obtained.

Embodiment 3 Next, a third embodiment of the present invention will be described with reference to FIG.

FIG. 29 is a circuit diagram showing a matrix type display device according to Embodiment 3 of the present invention. Referring to FIG. 29, in the first embodiment, two image signal lines 2
Although a and 2b are formed side by side so that mutual induction occurs, in the third embodiment, two images formed side by side in a direction orthogonal to the scanning line are formed. An annular conductive member 60 is formed between the signal lines 2a and 2b so as to be close to the respective image signal lines to such an extent that mutual induction occurs. This annular conductive member 6
0 is copper (Cu) like the image signal lines 2a and 2b,
It is made of aluminum (Al), silver (Ag) or an alloy thereof, and is formed on the display electrode substrate at the same time as the image signal lines 2a and 2b by using photolithography and film forming technology. Other configurations are the same as those of the first embodiment shown in FIG.

In the matrix type display device according to the third embodiment, when a current Sa flows through the image signal line 2a, a magnetic field Ja is generated in a direction shown in FIG. A current Fa in a direction opposite to the current Sa is generated. Further, the current Sb is supplied to the image signal line 2b.
Flows, a magnetic field Jb is generated in the illustrated direction, and the magnetic field Jb causes the current S to flow through the annular conductive member 60.
A current Fb in the opposite direction to b is generated. These currents Fa and Fb generated in the annular conductive member 60 flow in the same direction in the annular conductive member 60, and the magnetic field Jfa generated around the current Fa + Fb in the illustrated direction cancels the magnetic field Ja. The magnetic field Jfb generated around the current Fa + Fb in the illustrated direction cancels the magnetic field Jb. That is, the image signal line 2a is provided via the annular conductive member 60.
And 2b are magnetically coupled with each other, so that currents Sa and Sb in different directions from each other easily flow through these image signal lines 2a and 2b. A matrix type display that can easily and inexpensively obtain a high-definition, large-screen image without reducing the signal delay without developing high-cost materials for reducing the resistance and capacitance of the scanning lines and image signal lines. The device can be realized.

Further, in the above-described embodiment, the case has been described where the annular conductive members 60 are formed one by one every other portion outside the matrix region. However, the annular conductive members 60a are adjacent to each other. The image signal lines may be formed anywhere between the image signal lines formed side by side, may be formed in the matrix area, may not be formed every other one, or may be formed in a plurality. It has the same effect as.

Embodiment 4 FIG. Next, a fourth embodiment of the present invention will be described with reference to FIG.

FIG. 30 is a circuit diagram showing a matrix type display device according to Embodiment 4 of the present invention. Referring to FIG. 30, in the third embodiment, every other annular conductive member 60 is formed between two image signal lines 2a and 2b formed adjacent to each other, In the fourth embodiment, an annular conductive member 60 is continuously formed between two image signal lines formed adjacent to each other. These annular conductive members 60a, 60b, 6
0c is also copper (Cu), aluminum (Al), silver (Ag)
Alternatively, the image signal lines 2a and 2
Similarly to b, it is formed on the display electrode substrate by using a photomechanical technology and a film forming technology. For other configurations, see FIG.
This is the same as Embodiment 3 shown in FIG.

In the matrix type display device according to the fourth embodiment, the image signal lines 2a are respectively connected to the image signal lines 2c via the annular conductive members 60c and 60a on both sides thereof.
2b, and the image signal line 2b is magnetically coupled to both the image signal lines 2a and 2d via the annular conductive members 60a and 60b adjacent to the image signal line 2b. Therefore, currents Sa and Sb in different directions from each other flow more easily through the image signal lines 2a and 2b than the matrix-type display device described in the third embodiment,
In the dot inversion method, the inversion time of the current flowing in the image signal line is further shortened, and the signal delay is further reduced without developing expensive materials for reducing the resistance and capacitance of the scanning line and the image signal line. A matrix display device capable of easily and inexpensively obtaining a high-definition and large-screen image can be realized.

Further, in the above embodiment, the case where each of the annular conductive members 60a, 60b and 60c is formed in a portion outside the matrix region has been described, but the annular conductive members 60a, 60b and 60c are It may be formed anywhere between two image signal lines formed side by side adjacent to each other, may be formed in a matrix area, or may be formed in plurals. A similar effect is achieved.

Embodiment 5 Next, a fifth embodiment of the present invention will be described with reference to FIGS.

FIG. 31 is a circuit diagram showing a matrix type display device according to the fifth embodiment of the present invention. Referring to FIG. 31, in the fifth embodiment, the image signal lines 2a and 2b and the annular conductive member 60 which is also an electric wire are surrounded by the annular magnetic member 5 in the third embodiment.
0a and 50b are formed. Other configurations are the same as those of the third embodiment shown in FIG.

FIG. 32 is a perspective view showing the annular magnetic member. 32, reference numeral 17 denotes a glass substrate serving as a display electrode substrate, 30 denotes an insulating film made of silicon dioxide formed on the glass substrate 17, 2a denotes an image signal line,
Reference numeral 60 denotes an annular conductive member formed close to the image signal line 2a to such an extent that mutual induction occurs.
Is a ring-shaped magnetic member formed around the image signal line 2a and the ring-shaped conductive member 60 via an insulating film 30 made of silicon dioxide.

The method of manufacturing the annular conductive member 60 and the annular magnetic member 50a is the same as the manufacturing method described in the second embodiment except that the image signal line 2b is connected to the annular conductive member 6a.
This is the same as the manufacturing method read as 0. The annular conductive member 60 is made of copper (Cu), aluminum (A
1), silver (Ag) or an alloy thereof, and is formed on the display electrode substrate like the image signal lines 2a and 2b by using a photolithography technique and a film forming technique. The annular magnetic members 50a and 50b are formed of iron (Fe), nickel (Ni), cobalt (Co), zirconium (Zn), molybdenum (Mo), or an alloy thereof.

As described above, according to the matrix type display device of the fifth embodiment, the image signal lines 2a, 2b
Surrounding the annular conductive member 60 and the annular magnetic member 5.
Since 0a and 50b are formed, the magnetic coupling between the image signal lines 2a and 2b can be strengthened more than in the matrix type display device described in the third embodiment. Also, the overall magnetic field becomes smaller. Therefore, currents Sa and Sb in different directions are more likely to flow through these image signal lines 2a and 2b, and the reversal time of the current flowing through the image signal lines in the dot inversion method is further reduced, so that the scanning lines and the image signal lines are reduced. The signal delay can be further reduced without the development of a high-cost material for reducing the resistance and the capacitance, and a matrix type display device capable of easily and inexpensively obtaining a high-definition and large-screen image can be realized.

In the above embodiment, the case where the annular conductive member 60 and the annular magnetic members 50a and 50b are formed one by one every other portion outside the matrix region has been described. The member 60 and the annular magnetic members 50a and 50b are adjacent to each other and are formed side by side.
It may be formed anywhere between the image signal lines, may be formed in the matrix area, not every other, or may be formed in plurals. To play.

Embodiment 6 FIG. Next, a sixth embodiment of the present invention will be described with reference to FIG.

FIG. 33 is a circuit diagram showing a matrix type display device according to the sixth embodiment of the present invention. Referring to FIG. 33, in the fifth embodiment, an annular conductive member 60 is formed alternately between two image signal lines formed adjacent to each other to form an image signal line and an annular conductive member. Conductive member 6
0 and each formed an annular magnetic member,
In the sixth embodiment, annular conductive members 60a, 60b, and 60c, which are also electric wires, are formed continuously between two image signal lines formed adjacent to each other to form image signal lines 2a, 2b and annular conductive members 60a, 60b, 60
c, and annular magnetic members 50a, 50b, respectively.
Is formed. Other configurations are the same as those of the fifth embodiment shown in FIG.

The annular conductive members 60a, 60b, 6
0c is copper (Cu), aluminum (Al), silver (Ag)
Alternatively, it is made of an alloy thereof and is formed on the display electrode substrate similarly to the image signal lines 2a and 2b by using a photolithography technique and a film forming technique. Further, annular magnetic members 50a, 50b
Means iron (Fe), nickel (Ni), cobalt (C
o), zirconium (Zn), molybdenum (Mo), or an alloy thereof. This annular magnetic member 50
The method for manufacturing the a and 50b is the same as in the second embodiment.

In the matrix type display device according to the sixth embodiment, the image signal line 2a is connected to the image signal line 2c via the annular conductive members 60c and 60a on both sides thereof.
2b, and the image signal line 2b is magnetically coupled to both the image signal lines 2a and 2d via the annular conductive members 60a and 60b adjacent to the image signal line 2b. Therefore, currents Sa and Sb in different directions from each other flow more easily through the image signal lines 2a and 2b than the matrix-type display device described in the fifth embodiment,
In the dot inversion method, the inversion time of the current flowing in the image signal line is further shortened, and the signal delay is further reduced without developing expensive materials for reducing the resistance and capacitance of the scanning line and the image signal line. A matrix display device capable of easily and inexpensively obtaining a high-definition and large-screen image can be realized.

In the above embodiment, the annular conductive members 60a, 60b, 60c and the annular magnetic members 50a, 50a,
0b is formed in a portion outside the matrix region, but the ring-shaped conductive members 60a, 60
b, 60c and the annular magnetic members 50a, 50b may be formed anywhere between two image signal lines formed adjacent to each other, may be formed in a matrix region, The same effect as in the above-described embodiment may be obtained.

Embodiment 7 FIG. Next, a seventh embodiment of the present invention will be described with reference to FIG.

FIG. 34 is a circuit diagram showing a matrix type display device according to the seventh embodiment of the present invention. Referring to FIG. 34, in the seventh embodiment, one of the two image signal lines that are close to each other to the extent that mutual induction occurs in the first embodiment, Of the two image signal lines adjacent to the two image signal lines and close to each other to the extent that mutual induction occurs,
One image signal line on the image signal line side is formed so as to be close to each other to such an extent that mutual induction occurs. That is, in the seventh embodiment, the first embodiment is used.
, The image signal lines 2a and 2c and the image signal line 2
b and 2d are formed side by side with each other to such an extent that mutual induction occurs. Other configurations are the same as those of the first embodiment shown in FIG.

In the matrix type display device according to the seventh embodiment, the image signal lines 2a are magnetically coupled to the image signal lines 2c formed side by side so as to form magnetic fields Ja and Jc in mutually different directions. Cancel each other out. Also, on the opposite side of the matrix region, the image signal lines 2b which are formed side by side
And the magnetic fields Ja and Jb in mutually different directions cancel each other. Similarly, the image signal lines 2b are magnetically coupled to the image signal lines 2d formed adjacent to each other to form magnetic fields Jb in mutually different directions.
And Jd cancel each other out. Also on the opposite side of the matrix region, the image signal lines 2a are also magnetically coupled to each other and are arranged close to each other. Therefore, the overall magnetic field is greater than that of the matrix type display device described in the first embodiment. Becomes smaller. Accordingly, currents Sa and Sb in different directions from each other are more likely to flow through the image signal lines 2a and 2b, and the inversion time of the current flowing through the image signal lines in the dot inversion method is further reduced, so that the scanning lines and the image signal lines can be connected. It is possible to realize a matrix-type display device that can further reduce signal delay without developing a high-cost material for reducing resistance and capacitance and that can easily and inexpensively obtain a high-definition large-screen image.

In the above embodiment, the case where the two image signal lines 2a and 2c and the two image signal lines 2b and 2d do not intersect and are formed continuously in the scanning line direction and adjacent to each other. However, the two image signal lines 2a and 2a
c and / or 2b and 2d may be crossed without being electrically short-circuited and then formed adjacent to each other or formed continuously in the scanning line direction. It has the same effect as.

Embodiment 8 FIG. Next, an eighth embodiment of the present invention will be described with reference to FIG.

FIG. 35 is a circuit diagram showing a matrix type display device according to the eighth embodiment of the present invention. Referring to FIG. 35, in the eighth embodiment, a circular ring is formed by surrounding two image signal lines formed in close proximity to each other to the extent that mutual induction occurs in the seventh embodiment. The magnetic member 50 is formed. Other configurations are the same as those of the seventh embodiment shown in FIG.

The annular magnetic member 50 is made of iron (Fe), nickel (Ni), cobalt (Co), zirconium (Z
n), molybdenum (Mo) or an alloy thereof. The method of manufacturing the annular magnetic member 50 is the same as that of the second embodiment.

As described above, according to the matrix-type display device of the eighth embodiment, the two image signal lines 2a, 2c, and 2a formed in close proximity to each other to the extent that mutual induction occurs. And 2b, 2b and 2d,
Since the annular magnetic member 50 is formed, the seventh embodiment is used.
The magnetic coupling between the image signal lines 2a and 2b can be strengthened more than in the matrix type display device described in the above, and the whole magnetic field can be further reduced as compared with the matrix type display device shown in the seventh embodiment. Therefore, currents Sa and Sb in different directions are more likely to flow through these image signal lines 2a and 2b, and the reversal time of the current flowing through the image signal lines in the dot inversion method is further reduced, so that the scanning lines and the image signal lines are reduced. The signal delay can be further reduced without the development of a high-cost material for reducing the resistance and the capacitance, and a matrix type display device capable of easily and inexpensively obtaining a high-definition and large-screen image can be realized.

In the above-described embodiment, the case where the annular magnetic member 50 is formed so as to surround two image signal lines formed in close proximity to each other on both sides of the matrix region is described. Alternatively, the annular magnetic member 50 may be formed only on one of the two portions sandwiching the matrix region, and the same effects as in the above embodiment can be obtained.

Further, in the above-described embodiment, the ring-shaped magnetic member 50 surrounds the two image signal lines formed adjacent to each other on both sides of the matrix region.
Has been described in the scanning line direction, the annular magnetic member 50 may be formed in the matrix region, or may not be formed continuously in the scanning line direction. It may be formed, and the same effects as in the above embodiment can be obtained.

In the above embodiment, the case where the two image signal lines 2a and 2c and the two image signal lines 2b and 2d do not intersect and are formed continuously in the scanning line direction and adjacent to each other. However, the two image signal lines 2a and 2a
c and / or 2b and 2d may be crossed without being electrically short-circuited and then formed adjacent to each other or formed continuously in the scanning line direction. It has the same effect as.

[0069]

Since the present invention is configured as described above, it has the following effects.

According to the first aspect, the image signal lines are formed so as to be close to each other to such an extent that mutual induction occurs, so that the image signal lines formed to be close to each other are magnetically coupled. In addition, the signal inversion time of the current flowing in the image signal line is shortened, and the signal delay is reduced without developing a high-cost material for reducing the resistance and capacitance of the scanning line and the image signal line.
A matrix display device capable of easily and inexpensively obtaining a high-definition and large-screen image can be realized.

According to the second aspect of the present invention, an image signal line of a plurality of image signal lines which are close to each other to such an extent that mutual induction occurs, and another image signal line adjacent to the plurality of image signal lines is provided. Since the image signal lines on the image signal line side of the plurality of image signal lines that are close to each other to the extent that the inductive action occurs are formed so as to be close to each other to the extent that the mutual inductive action occurs, magnetic The number of image signal lines to be coupled increases, the overall magnetic field further decreases, the reversal time of the current flowing through the image signal lines is further shortened, and the scanning lines and the image signal lines are reduced in resistance and capacitance. Therefore, it is possible to realize a matrix type display device that can further reduce signal delay without developing a high-cost material to obtain a high-definition and large-screen image easily and inexpensively.

Further, according to the third aspect, the annular magnetic member is formed so as to surround the plurality of image signal lines that are close to each other to such an extent that mutual induction occurs, so that the image is formed via the annular magnetic member. The signal lines are magnetically coupled to each other to further reduce the entire magnetic field, further reduce the reversal time of the current flowing through the image signal lines, and reduce the resistance and capacitance of the scanning lines and the image signal lines. It is possible to realize a matrix-type display device that can further reduce signal delay without developing a high-cost material, and that can easily and inexpensively obtain a high-definition and large-screen image.

According to the fourth aspect, the annular conductive member is formed between the adjacent image signal lines so as to be close to the image signal lines to such an extent that mutual induction occurs. The image signal lines are magnetically coupled via the conductive member, thereby reducing the inversion time of the current flowing through the image signal lines in the dot inversion method, and reducing the resistance and capacitance of the scanning lines and the image signal lines. Therefore, it is possible to realize a matrix-type display device that can reduce a signal delay without developing a high-cost material, and can easily and inexpensively obtain a high-definition and large-screen image.

Further, according to the fifth aspect, since the annular conductive members are formed continuously between the image signal lines formed adjacent to each other, the magnetic conductive members are formed via the annular conductive members. The number of image signal lines coupled to the image signal increases, the overall magnetic field further decreases, the reversal time of the current flowing through the image signal line is further reduced, and the scanning line and the image signal line are reduced in resistance and capacitance. Therefore, it is possible to realize a matrix-type display device that can further reduce signal delay without developing a high-cost material, and can easily and inexpensively obtain a high-definition and large-screen image.

According to the sixth aspect of the present invention, an annular magnetic member surrounding the image signal line and the annular conductive member formed close to the image signal line to the extent that mutual induction occurs. Since the members are formed, the image signal lines are further magnetically coupled via the ring-shaped magnetic member to further reduce the overall magnetic field, further shortening the reversal time of the current flowing through the image signal lines, and Realizing a matrix type display device that can further reduce signal delay without developing costly materials for lowering resistance and capacitance of image signal lines, and that can easily and inexpensively obtain high-definition and large-screen images. it can.

Further, according to the seventh aspect, the scanning lines formed in one direction and the image signal lines formed in the other direction are made substantially orthogonal to each other. It is possible to easily realize a high-integration matrix display device in which a manufacturing process is simplified and a high-definition and large-screen image can be obtained.

According to the eighth and ninth aspects, the annular magnetic member is formed so as to surround the image signal line and the electric wire which are close to each other to the extent that mutual induction occurs. The image signal lines are further magnetically coupled through the intermediary to further reduce the overall magnetic field, further reducing the reversal time of the current flowing through the image signal lines, and reducing the resistance and capacitance of the scanning lines and the image signal lines. Therefore, it is possible to realize a matrix type display device that can further reduce signal delay without developing a high-cost material to obtain a high-definition and large-screen image easily and inexpensively.

[Brief description of the drawings]

FIG. 1 is a circuit diagram showing a matrix type display device according to a first embodiment of the present invention.

FIG. 2 is an explanatory diagram showing a magnetic field distribution according to the first embodiment of the present invention.

FIG. 3 is a circuit diagram showing a matrix type display device according to a second embodiment of the present invention.

FIG. 4 is a perspective view showing an annular magnetic member according to Embodiment 2 of the present invention.

FIG. 5 is a cross-sectional view showing a first step of the method of manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 6 is a sectional view illustrating a second step of the method of manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 7 is a sectional view illustrating a third step of the method of manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 8 is a sectional view illustrating a fourth step of the method of manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 9 is a cross-sectional view showing a fifth step of the method of manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 10 is a cross-sectional view showing a sixth step of the method of manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 11 is a cross-sectional view showing a seventh step of the method of manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 12 is a cross-sectional view showing an eighth step of the method for manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 13 is a cross-sectional view showing a ninth step of the method for manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 14 is a cross-sectional view showing a tenth step of the method of manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 15 is a cross-sectional view showing an eleventh step of the method for manufacturing the annular magnetic member in the second embodiment of the present invention.

FIG. 16 is a cross-sectional view showing a twelfth step of the method for manufacturing the annular magnetic member in the second embodiment of the present invention.

FIG. 17 is a cross-sectional view showing a thirteenth step of the method for manufacturing the annular magnetic member in the second embodiment of the present invention.

FIG. 18 is a cross-sectional view showing a fourteenth step of the method for manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 19 is a cross-sectional view showing a fifteenth step of the method of manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 20 is a cross-sectional view showing a sixteenth step of the method for manufacturing the annular magnetic member in the second embodiment of the present invention.

FIG. 21 is a cross-sectional view showing a seventeenth step of the method of manufacturing the annular magnetic member in the second embodiment of the present invention.

FIG. 22 is a cross-sectional view showing an eighteenth step of the method of manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 23 is a cross-sectional view showing a nineteenth step of the method of manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 24 is a cross-sectional view showing a twentieth step of the method of manufacturing the annular magnetic member in the second embodiment of the present invention.

FIG. 25 is a cross-sectional view showing a twenty-first step of the method of manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 26 is a cross-sectional view showing a 22nd step of the method of manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 27 is a cross-sectional view showing a twenty-third step of the method for manufacturing the annular magnetic member according to the second embodiment of the present invention.

FIG. 28 is an explanatory diagram showing a magnetic field distribution according to the second embodiment of the present invention.

FIG. 29 is a circuit diagram showing a matrix type display device according to Embodiment 3 of the present invention.

FIG. 30 is a circuit diagram showing a matrix display device according to a fourth embodiment of the present invention.

FIG. 31 is a circuit diagram showing a matrix type display device according to a fifth embodiment of the present invention.

FIG. 32 is a perspective view showing an annular conductive member according to Embodiment 5 of the present invention.

FIG. 33 is a circuit diagram showing a matrix display device according to a sixth embodiment of the present invention.

FIG. 34 is a circuit diagram showing a matrix display device according to a seventh embodiment of the present invention.

FIG. 35 is a circuit diagram showing a matrix type display device according to an eighth embodiment of the present invention.

FIG. 36 is a system configuration diagram of a conventional matrix type display device.

FIG. 37 is a circuit diagram showing a conventional matrix type display device.

FIG. 38 is an explanatory diagram of a dot inversion method of a conventional matrix type display device.

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 Scan line 2a, 2b, 2c, 2d Image signal line (electric wire) 3 Switching element 7 Pixel electrode 8 Counter electrode 9 Dielectric whose light transmittance changes according to applied voltage 10 Pixel 50, 50a, 50b Annular magnetic member 60, 60a , 60b, 60c Annular conductive member (electric wire)

Claims (9)

[Claims] The light transmittance is controlled by an applied voltage which is sealed between a pixel electrode, a part of a counter electrode disposed opposite to the pixel electrode, and the part of the pixel electrode and the counter electrode. The pixels formed by the changing dielectric material are arranged in a matrix, and the image signal lines formed in one direction for these pixels supply the image signals via the switching elements driven by the scanning signals. In the matrix type display device, the image signal lines adjacent to each other are arranged close to each other to the extent that mutual induction occurs, and the potential of the pixel electrode with respect to the counter electrode of the pixel is set to be adjacent to the pixel. A matrix-type display device wherein the potential of a pixel to be inverted is inverted with respect to the potential of the pixel electrode with respect to the counter electrode. 2. An image signal line of a plurality of image signal lines adjacent to each other and a plurality of image signal lines adjacent to the plurality of image signal lines adjacent to the plurality of image signal lines. 2. The matrix type display device according to claim 1, wherein the image signal lines and the image signal lines are formed close to each other to such an extent that mutual induction occurs. 3. The matrix type display device according to claim 1, further comprising an annular magnetic member formed so as to surround a plurality of image signal lines adjacent to each other. 4. A pixel electrode, a part of a counter electrode disposed opposite to the pixel electrode, and a light transmittance, which is sealed between the pixel electrode and the part of the counter electrode, applied by an applied voltage. The pixels formed by the changing dielectric material are arranged in a matrix, and the image signal lines formed in one direction for these pixels supply the image signals via the switching elements driven by the scanning signals. In the matrix type display device, a ring-shaped conductive member is disposed between the image signal lines adjacent to each other and close to the image signal lines to such an extent that mutual induction occurs, and the counter electrode of the pixel is provided. Wherein the potential of the pixel electrode with respect to the pixel electrode is inverted with respect to the potential of the pixel electrode with respect to the counter electrode of a pixel adjacent to the pixel. 5. The matrix type display device according to claim 4, wherein the annular conductive members are formed continuously between the image signal lines formed adjacent to each other. 6. An annular magnetic member formed so as to surround the image signal line and an annular conductive member formed close to the image signal line.
3. The matrix display device according to 1. 7. The scanning lines formed in one direction and the image signal lines formed in another direction are substantially orthogonal to each other.
A matrix type display device according to any one of the above. 8. A first magnetic film pattern having a groove, and an insulating film interposed between the first magnetic film pattern having the groove and the first magnetic film pattern. The upper part of the image signal line and the electric wire,
A second magnetic film pattern magnetically connected to the first magnetic film pattern formed between the image signal line and the electric wire with an insulating film interposed therebetween. Also, an annular magnetic member. 9. forming a first magnetic film pattern; forming a groove in the first magnetic film pattern; and interposing an insulating film between the first magnetic film pattern and an insulating film. An upper portion of the image signal line and the electric wire formed in the groove so as to be close to each other to such an extent that an inducing action is generated;
Forming a second magnetic film pattern that is magnetically connected to the first magnetic film pattern via an insulating film between the image signal line and the electric wire above the magnetic film pattern. The manufacturing method of the annular magnetic member provided.