KR20120063353A - Metallic electrophoretic display deivce - Google Patents

Metallic electrophoretic display deivce Download PDF

Info

Publication number
KR20120063353A
KR20120063353A KR1020100124481A KR20100124481A KR20120063353A KR 20120063353 A KR20120063353 A KR 20120063353A KR 1020100124481 A KR1020100124481 A KR 1020100124481A KR 20100124481 A KR20100124481 A KR 20100124481A KR 20120063353 A KR20120063353 A KR 20120063353A
Authority
KR
South Korea
Prior art keywords
electrophoretic display
flexible film
display panel
substrate
wiring
Prior art date
Application number
KR1020100124481A
Other languages
Korean (ko)
Inventor
손호원
이성훈
Original Assignee
엘지디스플레이 주식회사
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by 엘지디스플레이 주식회사 filed Critical 엘지디스플레이 주식회사
Priority to KR1020100124481A priority Critical patent/KR20120063353A/en
Publication of KR20120063353A publication Critical patent/KR20120063353A/en

Links

Images

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field
    • G02F1/166—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect
    • G02F1/167—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field characterised by the electro-optical or magneto-optical effect by electrophoresis
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
    • G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
    • G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
    • G09G3/3433—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices
    • G09G3/344—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using light modulating elements actuated by an electric field and being other than liquid crystal devices and electrochromic devices based on particles moving in a fluid or in a gas, e.g. electrophoretic devices
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on translational movement of particles in a fluid under the influence of an applied field
    • G02F1/1675—Constructional details
    • G02F1/1676—Electrodes
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
    • G09G2300/00—Aspects of the constitution of display devices
    • G09G2300/04—Structural and physical details of display devices
    • G09G2300/0421—Structural details of the set of electrodes
    • G09G2300/0426—Layout of electrodes and connections

Landscapes

  • Physics & Mathematics (AREA)
  • Engineering & Computer Science (AREA)
  • General Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Molecular Biology (AREA)
  • Electrochemistry (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Computer Hardware Design (AREA)
  • Theoretical Computer Science (AREA)
  • Electrochromic Elements, Electrophoresis, Or Variable Reflection Or Absorption Elements (AREA)

Abstract

The present invention relates to an electrophoretic display device for preventing the attachment force is reduced when the flexible film is attached to the metal electrophoretic display panel, the electrophoretic display panel for implementing an image as the particles move as the electric field is applied; Flexible films respectively attached to pads of the electrophoretic display panel; A second wiring formed on the flexible film and connected to the first wiring of the electrophoretic display panel; At least one reinforcement pattern formed on the flexible film to reinforce the flexible film; A plurality of grooves formed in the reinforcement pattern; And an adhesive resin and conductive material applied between the flexible film and the electrophoretic display panel to attach the flexible film to the electrophoretic display panel and to electrically conduct the first wiring of the electrophoretic display panel and the second wiring of the flexible film. Consists of particles, the grooves are characterized in that the adhesive resin and conductive particles are applied.

Description

Metal electrophoretic display device {METALLIC ELECTROPHORETIC DISPLAY DEIVCE}

The present invention relates to a metal electrophoretic display device, in particular a metal electrophoretic display device that can prevent the flexible film from being lifted or separated from the electrophoretic display panel by preventing the adhesion between the flexible film and the electrophoretic display panel is lowered. It is about.

In general, an electrophoretic display device is an image display device using a phenomenon in which colloidal particles move to either polarity when a pair of electrodes to which voltage is applied is immersed in a colloidal solution. A wide viewing angle, high reflectance, and low consumption without using a backlight Since it has characteristics, such as an electric power, it is attracting attention as an electronic device, such as an electric paper.

The electrophoretic display device has a structure in which an electrophoretic layer is interposed between two substrates, one of the two substrates is made of a transparent substrate, and the other is composed of an array substrate on which a driving element is formed, thereby reflecting input light. The image can be displayed in the reflective mode.

1 is a view schematically showing the structure of a conventional electrophoretic display device 1. As shown in FIG. 1, the conventional electrophoretic display device 1 includes an electrophoretic display panel 10 in which an image is embodied, and one side of which is attached to one side of the electrophoretic display panel 10 and pads on the lower side thereof. And a first circuit to which the first flexible film 62 and the second flexible film 66 on which the gate driver 64 and the data driver 68 are mounted, and the other side of the first flexible film 62 are attached. A substrate 75 and a second circuit board 76 to which the other side of the second flexible film 66 is attached.

Although not shown, the electrophoretic display panel 10 is formed by forming a thin film transistor on a first substrate made of metal and attaching an electrophoretic film thereon.

Forming the electrophoretic display panel 10 with metal is to increase portability. Glass generally used has no warpage property, whereas metal has a bending property, so that portability is improved when a portable display device is manufactured. In addition, since the metal has a higher strength than glass, the metal is more resistant to external shock than an electrophoretic display device made of a glass substrate, thereby preventing damage due to external shock.

In general, when the electrophoretic display panel 10 is manufactured by using a glass substrate, a driving IC such as a gate driving device and a data driving device is directly mounted on the glass substrate. However, when a metal substrate is used as in the above structure, the driving IC Cannot be directly mounted on the metal substrate, the flexible films 62 and 66 must be attached and the drive ICs must be mounted on the flexible films 62 and 68.

However, the electrophoretic display device made of a gold substrate as described above has the following problems.

2 is a view showing that the flexible films 62 and 66 are attached to the electrophoretic display panel 10 in the conventional electrophoretic display device. In the drawing, although the first flexible film 62 on which the gate driver 64 is mounted is attached, the structure in which the second flexible film 66 on which the data driver 68 is mounted is attached is also attached to the first flexible film 62. ) Will be the same as the attached structure.

As shown in FIG. 2, the gate connection wiring 12 is formed in the pad region P of the electrophoretic display panel 10, and the metal wiring 82 is formed in the corresponding first flexible film 62. Is formed. Although not shown, the metal wire 82 is connected to a lead of the gate driver 64 mounted on the first flexible film 62, and the gate connection wire 12 is a gate pad (not shown). The gate line is electrically connected to the gate line formed in the pixel portion of the electrophoretic display panel 10 by the gate line. In addition, the first flexible film 62 is formed of a reinforcement pattern 86 made of metal, and the first flexible film is caused by an impact applied from the outside to the first flexible film 62 or the folding of the first flexible film 62. (62) is prevented from being broken.

The gate connection wiring 12 is electrically connected to the metal wiring 82 of the first flexible film 62. In this case, the electrical connection between the gate connection wiring 12 and the metal wiring 82 is made by an anisotropic conductive film attaching the first flexible film 62 to the electrophoretic display panel 10. Since the anisotropic conductive film is made of an adhesive resin and conductive particles, the gate connection wiring 12 of the electrophoretic display panel 10 and the metal wiring 82 of the first flexible film 62 are electrically connected by the conductive particles. Conductively, the scan signal output from the gate driver mounted on the first flexible film 62 is input into the display unit of the electrophoretic display panel 10 through the metal wiring 82 and the gate connection wiring 12.

When attaching the first flexible film 62 to the electrophoretic display panel 10, one side of the first flexible film 62 may be disposed between the pad portions P of the electrophoretic display panel 10 with an anisotropic conductive film therebetween. When pressure is applied to the first flexible film 62 by using a hot bar such as a high temperature hot bar, the heat of the hot bar is transferred to the anisotropic conductive film, and the adhesive resin of the anisotropic conductive film is dissolved to form the adhesive resin. And the conductive particles are uniformly spread in the pad region P of the electrophoretic display panel 10, and then cured as the temperature decreases, thereby attaching the first flexible film 62 to the electrophoretic display panel 10 and simultaneously The gate connection wiring 12 of the yeongdong display panel 10 and the metal wiring 82 of the first flexible film 62 are electrically connected to each other.

However, when the substrate of the electrophoretic display device 1 is made of metal as described above, when the pressure is applied to the first flexible film 62 by the hot bar, the heat supplied from the hot bar by the high thermal conductivity of the metal is applied. The temperature is rapidly lowered due to the rapid escape of the adhesive region to the outside of the adhesive region, and thus the molten adhesive resin is cured at a high rate so that the adhesive resin and the conductive particles of the anisotropic conductive film are formed on the electrophoretic display panel 10. Since it does not spread to the entire region, the adhesive resin and the conductive particles are not uniformly distributed in the pad region P of the electrophoretic display panel 110. The non-uniform distribution of the adhesive resin and the conductive particles forms a non-uniform adhesive force between the first flexible film 62 and the electrophoretic display panel 10, so that the first flexible film 62 is electrophoretic display panel 10. ) There was a problem of lifting or tearing.

In addition, the first flexible film 62 has an SR region S coated with a solder resist to cover and insulate the metal wiring 82, and the SR region S is an electrophoretic display panel 10. ) And the first flexible film 62 prevent the flow of the adhesive resin and the conductive particles so that the adhesive resin and the conductive particles are not uniformly distributed in the pad region P of the electrophoretic display panel 10. As a result, the problem that the first flexible film 62 is lifted or torn off from the electrophoretic display panel 10 becomes more serious.

The present invention is to solve the above problems, by uniformly applying the adhesive resin on the flexible film, the adhesive strength of the partial region between the flexible film and the electrophoretic display panel is lowered to lift or tear the flexible film from the electrophoretic display panel. An object of the present invention is to provide an electrophoretic display device capable of preventing the same.

In order to achieve the above object, the electrophoretic display device according to the present invention comprises an electrophoretic display panel for implementing an image as the particles move as the electric field is applied; Flexible films respectively attached to pads of the electrophoretic display panel; A second wiring formed on the flexible film and connected to the first wiring of the electrophoretic display panel; At least one reinforcement pattern formed on the flexible film to reinforce the flexible film; A plurality of grooves formed in the reinforcement pattern; And an adhesive resin and conductive material applied between the flexible film and the electrophoretic display panel to attach the flexible film to the electrophoretic display panel and to electrically conduct the first wiring of the electrophoretic display panel and the second wiring of the flexible film. Consists of particles, the grooves are characterized in that the adhesive resin and conductive particles are applied.

The flexible film is formed with an SR region coated with a solder resist covering the second wiring, and the groove extends to the SR region.

In the present invention, an anisotropic conductive film for attaching the flexible film to the electrophoretic display panel is applied to the adhesive resin and the conductive particles in the grooves formed in the reinforcement pattern of the flexible film, thereby preventing a decrease in adhesion force due to the reinforcement pattern.

1 is a view showing the structure of a conventional electrophoretic display device.
2 is a view showing an attachment structure of a conventional electrophoretic display device and a flexible film.
Figure 3 is a view showing the attachment structure of the electrophoretic display device and the flexible film according to the present invention.
4 is a view showing the structure of an electrophoretic display device according to the present invention.

Hereinafter, an electrophoretic display device according to the present invention will be described in detail with reference to the accompanying drawings.

In the present invention, by patterning the reinforcing pattern formed on the flexible film to form a region in which the adhesive resin and the conductive particles of the anisotropic conductive film is introduced to improve the adhesion by securing the spreading region of the adhesive resin and the conductive particles of the anisotropic conductive film.

In the conventional metal electrophoretic display device, the adhesive resin and the conductive particles of the anisotropic conductive film do not spread well in the adhesive region because the temperature of the electrophoretic display panel and the flexible film compressed by the thermal conductivity of the metal decreases rapidly. This is because the spreading time of the resin and the conductive particles is shortened.

In the present invention, by spreading the adhesive resin and the conductive particles of the conductive film in the adhesive region of the electrophoretic display panel in a short time, it is possible to prevent the flexible film from lifting or tearing off the electrophoretic display panel in the metal electrophoretic display device. .

3 is a view showing an adhesive structure between the electrophoretic display panel 110 and the flexible film 162 of the electrophoretic display device 101 according to the present invention.

As shown in FIG. 3, the flexible film 162 is adhered to the pad region P of the electrophoretic display panel 110. Although not shown in the drawing, an anisotropic conductive film is positioned between the flexible film 162 and the electrophoretic display panel 110 to attach the flexible film 162 to the electrophoretic display panel 110.

The electrophoretic display panel 110 is formed of a pad part P to which various pads for transmitting signals to the image display part are connected to an image display part to which an actual image is realized and an external wiring is formed, and the flexible film 162 is attached thereto. Although not shown in the figure, a plurality of gate lines and data lines connected to pads of the pad portion and to which signals are applied from the outside are arranged vertically and horizontally, and the plurality of pixels are defined by the plurality of gate lines and data lines. .

4 is a diagram illustrating a pixel structure of the electrophoretic display device 110 according to the present invention. The electrophoretic display panel 110 will be described in more detail with reference to FIG. 4. In this case, although many pixels are formed in the electrophoretic display device 110, only one pixel structure is shown in the drawing for convenience of description.

As shown in FIG. 4, the electrophoretic display panel 110 includes a first substrate 120 and a second substrate 140, a thin film transistor and a pixel electrode 118 formed on the first substrate 120, The common electrode 142 formed on the second substrate 140, the electrophoretic layer 150 formed between the first substrate 120 and the second substrate 140, the electrophoretic layer 150, and the pixel. The adhesive layer 119 is formed between the electrodes 118.

The first substrate 120 is formed of a metal having a predetermined thickness and the second substrate 140 is made of a flexible film. The first substrate 120 and the second substrate 140 are bonded to each other to complete the electrophoretic display panel 110. When the force is applied, the wheel can be rotated, thereby improving the user's portability.

The thin film transistor includes a gate electrode 111 formed on the first substrate 120, a gate insulating layer 122 formed over the entire first substrate 120 on which the gate electrode 111 is formed, and the gate insulating layer ( And a source electrode 115 and a drain electrode 116 formed on the semiconductor layer 113. The passivation layer 124 is formed on the source electrode 115 and the drain electrode 116 of the thin film transistor.

The pixel electrode 118 for applying a signal to the electrophoretic layer 160 is formed on the passivation layer 124. In this case, a contact hole 128 is formed in the passivation layer 124 so that the pixel electrode 118 on the passivation layer 124 is connected to the drain electrode 116 of the thin film transistor through the contact hole.

In addition, a common electrode 142 is formed on the second substrate 140, and an electrophoretic layer 150 is formed on the common electrode 142. In this case, the second substrate 140 is formed in a film form, and the adhesive layer 119 is formed on the electrophoretic layer 150 to form the second substrate 140 including the electrophoretic layer 150. Attach to 120. The electrophoretic layer 150 includes a capsule 152 filled with white particles 154 and black particles 156 having electrophoretic properties therein. When a signal is applied to the pixel electrode 118, an electric field is generated between the common electrode 142 and the pixel electrode 118, and the white particles 154 and the black particles inside the capsule 152 are generated by the electric field. 156 moves to implement the image.

For example, when a negative voltage is applied to the pixel electrode 118, the common electrode 142 of the second substrate 140 has a relatively positive potential, and thus has a white particle having a positive charge. The 154 moves toward the first substrate 120, and the black particles 156 carrying the negative charge move toward the second substrate 140. In this state, when light is input from the outside, that is, the upper portion of the second substrate 140, the input light is reflected by the black particles 156, so that black is implemented in the electrophoretic display device.

On the contrary, when a positive voltage is applied to the pixel electrode 118, the common electrode 142 of the second substrate 140 has a negative potential, so that the white particles 154 having a positive charge are formed. The black particles 156 that move to the second substrate 140 and have a negative charge are moved to the first substrate 120. In this state, when light is input from the outside, that is, the upper portion of the second substrate 140, the input light is reflected by the white particles 154, so that the white color is implemented in the electrophoretic display device.

A flexible film 162 is attached to the pad region P of the electrophoretic display panel 110. Although not shown in the drawing, the flexible film 162 includes a plurality of gate drivers or data drivers for applying a signal to the electrophoretic display panel 110.

In this case, only the flexible film 162 in which the gate driver is mounted is disclosed in the drawing, but in the present invention, the flexible film 162 in which the gate driver is mounted is not attached only to the gate pad part, but the flexible film in which the data driver is mounted is also data. It is also attached to the pad part. In the following description, only the attaching structure of the flexible film and the gate pad unit in which the gate driver is mounted is described for convenience, but the attaching structure of the flexible film and the data pad unit in which the data driving unit is mounted is the same.

As shown in the figure, a gate connection wiring 112 is formed on the pad portion P of the electrophoretic display panel 110, and a gate driver mounted on the flexible film 162 on the flexible film 162. A metal wire 182 is formed to be connected to the lead, and the gate connection wire 112 and the metal wire 182 are electrically connected to the gate pad part P.

SR portion (S) is formed on the flexible film 162. The SR portion (S) is a place where a soldering resist (soldering resist) is applied, since the metal wiring 182 formed on the flexible film 162 is covered by the solder resist, the metal wiring 182 from the outside The protection and the metal wiring 182 at the same time is insulated.

In addition, a reinforcement pattern 186 is formed on the flexible film 162. The reinforcement pattern 186 is to prevent the flexible film 162 from being damaged by an external impact. In particular, in the case of the electrophoretic display device 101, the flexible film 162 is folded to the electrophoretic display panel 110. It is to prevent the folding part from being broken when attached to the rear of the.

Although the reinforcement pattern 186 is formed only on both sides of the flexible film 162 in the drawing, it may be formed at various positions as necessary for the reinforcement pattern 186. The reinforcement pattern 186 is mainly formed of metal, but may be formed of an insulating material such as resin. When the reinforcement pattern 186 is formed of metal, the reinforcement pattern 186 may be formed of the same metal as the metal wiring 182 formed on the flexible film 162.

A plurality of grooves 188 are formed in the reinforcement pattern 186. The groove 188 is formed by extending the reinforcement pattern 186 from the end to the inside, for example, into the SR part S. In this case, the number of the grooves 188 is not limited to a specific number, and may be determined by the attachment area of the flexible film 162 and the electrophoretic display panel 110 or the size of the reinforcement pattern 186.

In addition, although the shape of the groove 188 formed in the two reinforcement patterns 186 formed on both sides of the flexible film 162 is the same in the drawing, the plurality of reinforcement patterns 186 disposed in the one flexible film 162. The shape of the groove 188 formed in the) may be formed differently in each reinforcement pattern (186).

As described above, the process of attaching the configured flexible film 162 to the electrophoretic display panel 110 will be described.

First, the anisotropic conductive film is placed on the gate pad portion P and the data pad portion of the electrophoretic display panel 110, and the flexible film for gate 162 and the flexible film for data (not shown) are placed thereon. Thereafter, a high temperature hot bar is placed on the flexible film 162 and then pressure is applied.

As the temperature of the anisotropic conductive film increases due to the high temperature hot bar, the adhesive resin of the anisotropic conductive film is melted and pressure is applied by the hot bar. Thus, the adhesive resin and the conductive particles of the anisotropic conductive film are subjected to the electrophoretic display panel ( It spreads to the pad region P between the 110 and the flexible film 162. At this time, the dissolved adhesive resin and the conductive particles flow into the groove 188 of the reinforcement pattern 186.

Typically, since the reinforcement pattern 186 has a step, when the flexible film 162 is attached to the electrophoretic display panel 110, the molten adhesive resin and the conductive particles may be formed on the step of the reinforcement pattern 186. As a result, the speed of spreading to the region where the reinforcement pattern 186 is formed is reduced. Therefore, in the electrophoretic display device using the metal as the first substrate 120, the temperature decreases rapidly due to the high electrical conductivity of the first substrate 120, and the adhesive resin cures at a high speed. When the spreading speed of the molten adhesive resin decreases due to the step 186, the adhesive resin is not uniformly applied to the region where the reinforcing pattern 186 is formed, and thus the flexible film 162 and the electrophoretic display panel 110 are fixed. ), The adhesion between them will be reduced.

However, as the grooves 188 are formed in the reinforcement pattern 186 as in the present invention, the adhesive resin and the conductive particles spread by the pressure flow into the grooves 188 in the reinforcement pattern 186 without a speed delay due to the step difference. Therefore, even when the adhesive resin is cured at a high speed, the adhesive resin is applied to a portion of the reinforcement pattern 186 to prevent the adhesive force between the flexible film 162 and the electrophoretic display panel 110 from being lowered. do.

In the present invention, a part of the groove 188 extends to the SR region S, for the following reason.

The solder resist applied to the SR region S is a kind of resin and covers the remaining metal wiring 182 except for the metal wiring 182 connected to the gate connection wiring 112. Therefore, such a solder resist also has a step, and the step of the solder resist also lowers the spreading speed of the adhesive resin and the conductive particles of the anisotropic conductive film so that the flexible film 162 adheres to the electrophoretic display panel 110. When the adhesive resin and the conductive particles do not spread evenly in the SR region (S), the adhesion between the flexible film 162 and the electrophoretic display panel 110 is reduced in this region.

However, in the present invention, since the groove 188 formed in the reinforcement pattern 186 extends to the SR region S, when the adhesive resin and the conductive particles flow into the groove 188, the adhesive resin and the conductive particles Flows into the SR region (S). Therefore, even when the adhesive resin is cured at a high speed, the adhesive resin is applied to a portion of the SR region S to prevent the adhesive force between the flexible film 162 and the electrophoretic display panel 110 from decreasing in this region. You can do it.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments.

Accordingly, the scope of the present invention is not limited thereto, but various modifications and improvements of those skilled in the art using the basic concept of the present invention as defined in the following claims are also within the scope of the present invention.

100: electrophoretic display device 110: electrophoretic display panel
120,140: substrate 160: electrophoretic layer
162 182: metal wiring
186: reinforcement pattern 188: groove

Claims (6)

An electrophoretic display panel that implements an image as particles move as an electric field is applied;
Flexible films respectively attached to pads of the electrophoretic display panel;
A second wiring formed on the flexible film and connected to the first wiring of the electrophoretic display panel;
At least one reinforcement pattern formed on the flexible film to reinforce the flexible film;
A plurality of grooves formed in the reinforcement pattern; And
Adhesive resin and conductive particles applied between the flexible film and the electrophoretic display panel to attach the flexible film to the electrophoretic display panel and to electrically conduct the first wiring of the electrophoretic display panel and the second wiring of the flexible film. Consists of,
Electrophoretic display device, characterized in that the groove is coated with an adhesive resin and conductive particles. The method of claim 1, wherein the flexible film,
A flexible film for the gate on which the gate driver is mounted; And
An electrophoretic display device comprising a flexible film for data mounted on a data driver. The electrophoretic display device of claim 1, wherein the flexible film has an SR region coated with a solder resist covering the second wiring. 5. An electrophoretic display device according to claim 4, wherein the groove extends to the SR region. The method of claim 1, wherein the electrophoretic display panel,
A first substrate made of metal and having a thin film transistor formed thereon;
A pixel electrode formed on the first substrate;
A second substrate made of a flexible film;
A common electrode formed on the second substrate; And
An electrophoretic display device comprising an electrophoretic layer formed between a first substrate and a second substrate. The electrophoretic display device of claim 5, wherein the electrophoretic layer comprises a capsule filled with white particles and black particles having electrophoretic properties.
KR1020100124481A 2010-12-07 2010-12-07 Metallic electrophoretic display deivce KR20120063353A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
KR1020100124481A KR20120063353A (en) 2010-12-07 2010-12-07 Metallic electrophoretic display deivce

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
KR1020100124481A KR20120063353A (en) 2010-12-07 2010-12-07 Metallic electrophoretic display deivce

Publications (1)

Publication Number Publication Date
KR20120063353A true KR20120063353A (en) 2012-06-15

Family

ID=46683875

Family Applications (1)

Application Number Title Priority Date Filing Date
KR1020100124481A KR20120063353A (en) 2010-12-07 2010-12-07 Metallic electrophoretic display deivce

Country Status (1)

Country Link
KR (1) KR20120063353A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190137701A (en) 2018-06-01 2019-12-11 도요타 지도샤（주） Electrically heated catalyst device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR20190137701A (en) 2018-06-01 2019-12-11 도요타 지도샤（주） Electrically heated catalyst device

Similar Documents

Publication Publication Date Title
JP3139549B2 (en) Active matrix type liquid crystal display
US9240149B2 (en) Liquid crystal display device and method of fabricating the same
US20070139600A1 (en) Liquid crystal display device and method of fabricating the same
US8259247B2 (en) Liquid crystal display device
US10747074B2 (en) Chip on film package and display apparatus having the same
KR101049252B1 (en) A liquid crystal display device comprising the tape wiring board, the semiconductor chip package including the tape wiring board, and the semiconductor chip package.
KR20210036444A (en) Display device
KR102413480B1 (en) Display apparatus and method of manufacturing the same
KR102339969B1 (en) Chip-On-Film Circuit and Flexible Display Device having the same
KR101621559B1 (en) Liquid crystal display device
KR101424037B1 (en) Liquid crystal display device
KR20070102048A (en) Liquid crystal display
KR20110114444A (en) Structure for power connecting of driver ic chip
KR100885378B1 (en) Liquid crystal display
CN101543147B (en) Wiring board and display unit
KR20060103652A (en) Liquid crystal display device
KR20120063353A (en) Metallic electrophoretic display deivce
JP2003068795A (en) Display device and its manufacturing method
US20060256064A1 (en) Liquid crystal display device
KR20130022802A (en) Liquid crystal display device
KR20130066844A (en) Liquid crystal display device and method for fabricating the same
KR20080080740A (en) Array substrate and display apparatus having the same
KR20060037635A (en) Liquid crystal display panel
US20080252837A1 (en) Liquid crystal display device and manufacturing method thereof
KR20100007612A (en) Display device

Legal Events

Date Code Title Description
WITN Withdrawal due to no request for examination