KR100731725B1 - Electro lumunescene display pannel contained electric magnetic field protection means - Google Patents

Abstract

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an active element display device, and more particularly, to an active element display device including electromagnetic field preventing means for protecting an internal circuit of the active element display device from abnormal electrical characteristics generated during a process.

The configuration of the present invention for this purpose is a substrate, a plurality of power lines and signal lines that are wired on the substrate, an input line for transmitting power or drive signal to the power line and signal line, and a pad connected to the input line An active element display device comprising: an electromagnetic field preventing means having high resistance at input lines of the power supply line and the signal line, wherein the charge damage occurs during the process, and the electrostatic discharge generated during the driving; It is characterized by blocking). Here, the electromagnetic field preventing means is connected between the input line and the pad. The electromagnetic field preventing means includes a first contact portion connected to the input line; A second contact portion connected to the pad; And a main body connecting the first contact portion and the second contact portion.

Active Device Display, Organic EL, Electromagnetic Field, Charge Difference

Description

Active element display device including electromagnetic field preventing means {Electro lumunescene display pannel contained electric magnetic field protection means}

1 is a plan view showing a typical active element display device;

Figure 2a is a plan view showing the concept of the present invention,

2B is a partial view showing a first embodiment of the present invention;

Figure 2c is a partial view showing a second embodiment of the present invention,

Figure 2d is a partial view showing a third embodiment of the present invention,

3 is an enlarged view showing an electromagnetic field preventing means;

4 is a cross-sectional view showing a contact portion.

Explanation of symbols on the main parts of the drawings

200: electromagnetic field preventing means 210: first contact portion

210a: contact hole 210b: insulating film

220: main body 230: second contact portion

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an active element display device, and more particularly, to an active element display device including electromagnetic field preventing means for protecting an internal circuit of an active element display device from abnormal electrical characteristics generated during a process.

An organic EL device is a self-light emitting device that emits a fluorescent material by recombination of electrons and holes, and the EL display using the same has a faster response speed than a passive light emitting device requiring a separate light source, such as a liquid crystal display device, and a DC driving voltage. This low and ultra-thin film makes it possible to be wall-mounted or portable.

As such a method of driving the organic EL light emitting cell, there are a simple matrix method and an active matrix method using a TFT. In the simple matrix method, the anode and the cathode are orthogonal and the line is selected and driven, whereas the active driving method is a driving method in which a TFT and a capacitor are connected to each ITO pixel electrode to maintain a voltage by capacitor capacitance.

The active element display device using the organic EL element as described above is as shown in FIG. 1 is a plan view illustrating a typical active element display device.

Reference numeral 100 is an active device display device, 110 is an upper first power supply voltage line, 120 is a lower first power supply voltage line, 130 is a second power supply voltage line, 140 is a scan driver, 150 is a data driver, 160 is a pixel area, 171 is an input line and 172 is a pad.

As shown in the drawing, the active element display device 100 includes a pixel region 160 in which each unit pixel emitting light of a predetermined color is arranged at a central portion thereof, and supplies power voltages at upper and lower sides of the pixel region 160. Upper and lower first power voltage lines 110 and 120, input lines 171 for transmitting power and driving signals to the upper and lower first power voltage lines and the respective components, and are transmitted from external components. A pad 172 for transmitting a driving power and a driving signal to the input line 171, a scan driver 130 for applying a selection signal to one side of the pixel region 160, and the pixel region 160 at the other side And a second power supply voltage line 130 for transmitting a cathode voltage to the pixel driver, and a data driver 150 for applying a data signal to the pixel region 160 under the lower first power supply voltage line 120. .

When the driving signal is applied through the input line 171 and the pad 172 from an external configuration, the active element display device 100 receives the upper first power voltage line through the input line 171 and the pad 172. A power supply voltage and a cathode voltage are applied to the 110 and the lower first power supply voltage line 120 and the second power supply voltage line 130. Accordingly, a power supply voltage is applied to the pixel region 160 in the upper and lower first power voltage lines, and a cathode voltage is applied to the pixel region 160 in the second power supply voltage line 130. When a selection signal and a data signal are respectively applied from the scan driver 140 and the data driver 150, a driving circuit formed in each unit pixel is turned on so that a current corresponding to the power supply voltage and the data signal is stored in the pixel region ( The pixel region 160 displays a predetermined image by being applied to a light emitting device (not shown) configured in the 160.

In the conventional active element display device having such a configuration, the charge of the wiring connected to the input line 171 of each component is uneven due to static electricity or other factors during the process, which may destroy the insulating film of the thin film transistor. Charge Damage is incurred. Alternatively, the active element display device may lose internal components due to an instantaneous high voltage caused by an electrostatic discharge generated during driving. However, in the conventional active element display device, such charge damage may occur. Or there is no structure that can prevent the electromagnetic field has a problem that a large amount of defective products can be generated during the process.

Accordingly, the present invention has been made to solve the above problems, the present invention has a high resistance within the range that does not affect the internal drive in the input line, the sudden charge difference or driving generated during the process An object of the present invention is to provide an active element display device having an electromagnetic field preventing means having a high resistance to block or slow down the generated electromagnetic field.

The configuration of the present invention for this purpose is a substrate, a plurality of power lines and signal lines that are wired on the substrate, an input line for transmitting power or drive signal to the power line and signal line, and a pad connected to the input line An active element display device comprising: an electromagnetic field preventing means having resistance at an input line of a power line and a signal line, wherein the charge damage occurs during a process, and an electrostatic discharge generated during driving; It is characterized by blocking the.

Here, the electromagnetic field preventing means is connected between the input line and the pad.

The electromagnetic field preventing means includes a first contact portion connected to the input line; A second contact portion connected to the pad; And a main body connecting the first contact portion and the second contact portion.

Here, the main body is formed of a foldable structure having a certain length.

In addition, the main body is characterized in that the width is smaller than the width of the input line.

The first contact portion is connected to the input line through a contact hole.

The second contact portion is connected to the pad through a contact hole.

Alternatively, an active device display comprising a substrate, a plurality of power lines and signal lines wired on the substrate, an input line transferring power or driving signals to the power lines and signal lines, and a pad connected to the input lines. An apparatus comprising: an electromagnetic field preventing means having high resistance and disposed on one side of the pad and connected to the pad and the input line, respectively.

Here, the electromagnetic field preventing means includes a first contact portion connected to the input line; A second contact portion connected to the pad; It is formed in a foldable structure having a predetermined length includes a body connecting the first contact portion and the second contact portion.

And, the main body is characterized in that its width is smaller than the width of the input line in order to increase the resistance.

Alternatively, an active device display comprising a substrate, a plurality of power lines and signal lines wired on the substrate, an input line transferring power or driving signals to the power lines and signal lines, and a pad connected to the input lines. In the apparatus, it is also a subject matter of the present invention to configure the electromagnetic field preventing means having a high resistance and arranged in the opposite direction of the input line and connected to the pad.

The electromagnetic field preventing means is connected to each of the pads, and the plurality of adjacent electromagnetic field preventing means are connected to each other.

In addition, the electromagnetic field preventing means is characterized in that the separation after completion of the process.

Here, the electromagnetic field preventing means is characterized in that it is formed of a foldable structure having a predetermined length.

Or an active element display device comprising a substrate, a plurality of power lines and signal lines wired on the substrate, and an input unit for transmitting a power source or driving signal to the power line and signal lines. An electromagnetic field preventing means having a high resistance and disposed in the input unit to prevent loss of internal configuration by the charge differential and the electromagnetic field, the electromagnetic field preventing means comprising: a first contact portion connected to one side configuration; A second contact portion connected to the other side; It is formed in a foldable structure having a predetermined length includes a body connecting the first contact portion and the second contact portion.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Figure 2a is a plan view for explaining the concept of the present invention, the same components as in the prior art will be described with the same reference numerals.

Reference numeral 180 is an input unit.

As shown in the drawing, an active element display device including the electromagnetic field preventing means according to the present invention has an electromagnetic field at the input unit 180 of the upper and lower first power supply voltage lines and the second power supply voltage lines 110, 120, 130. The prevention means 200 (refer to FIG. 2B). Here, the electromagnetic field preventing means 200 is connected to each input line and the pad included in the input unit 180 to prevent the charge difference generated during the process and the loss of internal components by the electromagnetic field during operation.

Here, the electromagnetic field preventing means 200 is configured not only in the voltage lines 110, 120 and 130, but also in all the components in which the charge differential in the process or the electromagnetic field in operation is generated, which is a conventional problem as described above. Ham is also a subject of the present invention.

2b to 2d are partial views showing first to third embodiments of the present invention, which partially illustrate the input of FIG. 2a.

Reference numeral 181 denotes an input line, 182 a pad, and 200 denotes an electromagnetic field preventing means.

As shown, the organic light emitting display device 100 including the electromagnetic field blocking means 200 according to the present invention includes an electromagnetic field blocking means 200 between the input line 181 and the pad 182. Here, the electromagnetic field blocking means 200 is preferably adopted to have a high resistance value to block the instantaneous high voltage between the input line 180 and the pad 181, more preferably the electromagnetic field blocking means ( 200) has a high resistance value within a range that does not affect the internal drive element.

Therefore, if the component wiring on the input side and the inside of the active element display device 100 is not uniform, and a charge difference is high or low on the same wiring or adjacent wiring, a higher level side The charge flows to the electromagnetic field preventing means 200 and is lowered by the high resistance of the electromagnetic field preventing means 200, so that the charge in both directions is uniform.

In addition, when the active device display apparatus 100 is manufactured after driving is completed, for example, when a momentary high voltage is generated in the first power supply voltage line 110, that is, an electromagnetic field (ESD), The electromagnetic field preventing means 200 lowers the generated instantaneous high voltage by the internal high resistance, thereby protecting the components of the active device display apparatus 100.

In addition, in the second embodiment of the present invention illustrated in FIG. 2C, the electromagnetic field preventing means 200 is connected to the input line 181 and the pad 182, unlike the first embodiment. ) Is disposed on one side of the pad 182 and connected to the input line 181 and the pad 182, respectively.

That is, in the second embodiment of the present invention, the electromagnetic field preventing means 200 is disposed by using the free space between the pads 182 uniformly arranged at a predetermined distance. Therefore, as the electromagnetic field preventing means 200 is configured at one side of the pad 182, a more efficient wiring arrangement may be made in a limited space of the input unit 180.

In addition, in the third exemplary embodiment of the present invention illustrated in FIG. 2D, the electromagnetic field preventing means 200 is disposed on a plurality of pads 182a and 182b adjacent to each other in a direction opposite to the direction connected to the input line 181. The main point is connected.

That is, the first electromagnetic field blocking means 200a is connected to the first pad 182a connected to the first input line 181a and the second magnetic field blocking means is connected to the second pad 182b connected to the second input line 181b. 200b) are connected at one side opposite to the input lines 181a and 181b, respectively, where the first and second electromagnetic field preventing means 200a and 200b are connected to each other and are charged difference generated in the process. It prevents the loss of internal components by (Charge Difference).

In particular, as described above, the third embodiment of the present invention prevents the charge difference generated during the process by being connected to the pad 182 in the opposite direction to the input line 181, and after the process, the input unit. In consideration of the coupling relationship between the 180 and the external components, the first and second electromagnetic field blocking means 200a and 200b may be separated. Alternatively, since the wiring area of the electromagnetic field preventing means (200a) (200b) and the pads (182a) (182b) is disposed in consideration of the electromagnetic field generated during operation by being included in a component without separation as described above even after completion of the process. This is also possible and corresponds to some of the various applications of the present invention.

 The detailed configuration of the electromagnetic field preventing means 200 as described above will be described in detail with reference to FIG. 3, which describes the electromagnetic field preventing means of the first embodiment as an example.

Reference numeral 181 denotes an input line, 182 a pad, 200 an electromagnetic field preventing means, 210 a first contact portion, 220 a main body, and 230 a second contact portion.

An input line 181 transmits a driving power and a signal to each wire of the active device display device 100, and a pad 182 connects an external component to the active device display device 100 and prevents electromagnetic fields. The reference numeral 200 blocks and slows a sudden charge difference and an electromagnetic field, and the first contact portion 210 connects the electromagnetic field preventing means 200 and the input line 180 to the main body 220. The input charge and the instantaneous high voltage are dropped, and the second contact portion 230 connects the electromagnetic field preventing means 200 and the pad 181.

As shown, the electromagnetic field preventing means 200 is configured between the input line 181 and the pad 182 through the first and second contact portions 210 and 230, and the main body 220 has a predetermined length. It has a foldable structure, and the main body 220 is formed in a narrow and long wiring to achieve a high resistance, and the active element display device 200 by connecting the pad 182 and the input line 181 to the front and end thereof. Connected with The body 220 is preferably narrower than the width of the input line (181).

Alternatively, in the third embodiment of the present invention, the first contact portion 210 may be connected to the first pad 182a, and the second contact portion 230 may be connected to the connected second electromagnetic field blocking means 200b. Do.

Therefore, when an instantaneous high voltage or charge difference generated in the power line connected to the input line 181 occurs, the high voltage transmitted through the first and second contact parts 210 and 230 is lowered to its own resistance to slow it down. It is to let.

In addition, it is preferable that the first and second contact portions 210 and 230 constitute a contact hole 210a and are connected to the input line 181 and the pad 182, as shown in FIG. 4.

4 is a cross-sectional view illustrating a cross section of the contact portion, and as an example, illustrates the first contact portion, but the cross section is the same as the second contact portion.

Reference numeral 181 denotes an input line, 210 a first contact portion, 210a a contact hole, and 210b an insulating film.

As shown, an insulating film 210b is formed outside the input line 181, and a contact hole 210a is formed between the first contact portion 210 and the input line 181 in the insulating film 210b. Is formed. The contact hole 210a is filled with a conductive metal to electrically connect the first contact portion 210 and the input line 181.

The detailed description of the invention has been described with reference to specific embodiments of the invention as examples, but the invention is not limited thereto, and one having ordinary skill in the art to which the invention pertains without departing from the concept of the invention. Modification or modification of the invention in various forms by the ruler is of course included in the concept of the present invention.

As described above, the present invention provides an electromagnetic field preventing means having a high resistance between the input line and the pad, thereby preventing the charge damage caused by damage of the component due to the charge unevenness at both ends generated during the process. In addition, it reduces the defective rate of, and also prevents the failure of the internal configuration by blocking the electromagnetic field generated during operation, thereby improving the reliability of the customer.

Claims (15)

An active device display device comprising a substrate, a plurality of power lines and signal lines wired on the substrate, an input line for transmitting power or driving signals to the power lines and signal lines, and a pad connected to the input lines. In An active element comprising an electromagnetic field preventing means having resistance in the input line of the power line and the signal line to block charge damage generated during the process and electromagnetic static discharge generated during operation. Display. The method of claim 1, wherein the electromagnetic field preventing means And an electromagnetic field preventing means connected between the input line and the pad. The method of claim 2, wherein the electromagnetic field preventing means A first contact portion connected to the input line; A second contact portion connected to the pad; And a main body connecting the first contact portion and the second contact portion. The method of claim 3, wherein the main body Active device display device having an electromagnetic field preventing means, characterized in that formed in a foldable structure having a predetermined length. The method of claim 4, wherein the body is An active element display device having an electromagnetic field preventing means, the width of which is smaller than the width of the input line. The method of claim 3, wherein the first contact portion And an electromagnetic field preventing means connected to the input line through a contact hole. The method of claim 3, wherein the second contact portion An active element display device having an electromagnetic field preventing means connected to the pad through a contact hole. An active device display device comprising a substrate, a plurality of power lines and signal lines wired on the substrate, an input line for transmitting power or driving signals to the power lines and signal lines, and a pad connected to the input lines. In And an electromagnetic field preventing means having a resistance and disposed on one side of the pad and connected to the pad and the input line, respectively. The method of claim 8, wherein the electromagnetic field preventing means A first contact portion connected to the input line; A second contact portion connected to the pad; And a main body connecting the first contact portion and the second contact portion to a foldable structure having a predetermined length. The method of claim 9, wherein the body is And a width less than that of the input line. An active device display device comprising a substrate, a plurality of power lines and signal lines wired on the substrate, an input line for transmitting power or driving signals to the power lines and signal lines, and a pad connected to the input lines. In And an electromagnetic field preventing means having resistance and connected to the pad in a direction opposite to the input line. The method of claim 11, wherein the electromagnetic field preventing means And a plurality of adjacent electromagnetic field blocking means connected to the plurality of pads, respectively. The method of claim 12, wherein the electromagnetic field preventing means Active device display device having an electromagnetic field preventing means characterized in that the separation after completion of the process. The method of claim 11, wherein the electromagnetic field preventing means Active device display device having an electromagnetic field preventing means, characterized in that formed in a foldable structure having a predetermined length. An active element display device comprising a substrate, a plurality of power lines and signal lines wired on the substrate, and an input unit for transmitting a power source or driving signal to the power line and signal lines, wherein the active element display device comprises: And an electromagnetic field preventing means having a resistance and disposed in the input unit to prevent a loss of an internal configuration due to a charge difference and an electromagnetic static discharge. A first contact portion connected to one side configuration; A second contact portion connected to the other side; And a main body connecting the first contact portion and the second contact portion to a foldable structure having a predetermined length.

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