KR20160059592A - Display Device Having Protection Film - Google Patents

Display Device Having Protection Film Download PDF

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Publication number
KR20160059592A
KR20160059592A KR1020140161199A KR20140161199A KR20160059592A KR 20160059592 A KR20160059592 A KR 20160059592A KR 1020140161199 A KR1020140161199 A KR 1020140161199A KR 20140161199 A KR20140161199 A KR 20140161199A KR 20160059592 A KR20160059592 A KR 20160059592A
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KR
South Korea
Prior art keywords
color
pressure
protective film
display panel
layer
Prior art date
Application number
KR1020140161199A
Other languages
Korean (ko)
Inventor
유선아
최재경
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 KR1020140161199A priority Critical patent/KR20160059592A/en
Publication of KR20160059592A publication Critical patent/KR20160059592A/en

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/06—Layered products comprising a layer of synthetic resin as the main or only constituent of a layer, which is next to another layer of the same or of a different material
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B27/00—Layered products comprising a layer of synthetic resin
    • B32B27/18—Layered products comprising a layer of synthetic resin characterised by the use of special additives
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B7/00—Layered products characterised by the relation between layers; Layered products characterised by the relative orientation of features between layers, or by the relative values of a measurable parameter between layers, i.e. products comprising layers having different physical, chemical or physicochemical properties; Layered products characterised by the interconnection of layers
    • B32B7/02—Physical, chemical or physicochemical properties
    • G—PHYSICS
    • G02—OPTICS
    • G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
    • G02B1/00—Optical elements characterised by the material of which they are made; Optical coatings for optical elements
    • G02B1/10—Optical coatings produced by application to, or surface treatment of, optical elements
    • G02B1/14—Protective coatings, e.g. hard coatings
    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • G09F9/30—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements in which the desired character or characters are formed by combining individual elements

Abstract

The present invention relates to a display device having a protective film attached thereto, which can prevent loss of alignment keys. A display device having a protective film attached thereto according to an aspect of the present invention comprises: a display panel which outputs an image; and a protective film which is attached to a surface of the display panel. The protective film includes: a base film; an adhesion layer which attaches a first surface of the base film to a surface of the display panel; a color development layer which is disposed on a second surface of the base film, and includes color developer and alignment keys for alignment of the protective film; and a color formation layer which is disposed on the color development layer, and includes a plurality of pressure-sensitive color capsules including color former forming predetermined colors through contact with the color developer. The alignment keys are prepared by color implementation materials synthesized through contact between color former, leaking from pressure-sensitive color capsules to which pressure is applied, among the pressure-sensitive color capsules, and the color developer.

Description

[0001] The present invention relates to a display device having a protective film,

The present invention relates to a display device.

The importance of flat panel displays (FPDs) has been increasing along with the development of multimedia. As a result, it has become possible to use a liquid crystal display (LCD), a field emission display (FED) Various types of flat panel display devices such as a display device (Organic Light Emitting Device) and the like are put into practical use.

The flat panel display is provided with a protection film for protecting the flat panel display from scratches or external impacts. The protective film is accurately attached to the display panel according to the alignment of the alignment mark formed on the surface of the protective film and the alignment mark formed on the display panel.

The conventional Alignment Key is manufactured using a metal, specifically, as shown in FIG. 1, on a surface of a protective film through a deposition method using a metal. The deposition process is mainly performed by sputtering and is performed at a room temperature or a low temperature process so that the protective film is not damaged by heat.

However, since the conventional Alignment Key is formed of a metal, it has a very low interface affinity with a protective film formed of an organic material. Therefore, the surface treatment process for increasing the affinity of the metal material with the Alignment Key (hydrophilic surface treatment In addition to this, there is a problem that the alignment mark may be lost when the protective film is transported.

In addition, in the case of forming the alignment mark by the vapor deposition method, the solid is vaporized to be vaporized or oxidized by the metal ion to form a desired pattern. The process is progressed through various phase changes, There is a problem that a high cost is required in terms of material or material.

In addition, since the conventional Alignment Key is not only formed of expensive metal but also requires an Alignment Substrate for an Alignment Key, the manufacturing cost is increased.

Disclosure of Invention Technical Problem [8] The present invention has been made to solve the above problems, and it is an object of the present invention to provide a display device with a protective film that can prevent the loss of the alignment mark.

Another object of the present invention is to provide a display device to which a protective film having a simple manufacturing process is attached.

According to an aspect of the present invention, there is provided a display device having a protective film attached thereto, including: a display panel for outputting an image; And a protective film attached to a surface of the display panel, wherein the protective film comprises: a base film; An adhesive layer for attaching the first surface of the base film to the surface of the display panel; A color developing layer provided on the second surface of the base film and having an alignment mark for aligning the color developing agent and the protective film; And a coloring layer provided on the color developing layer and having a plurality of pressure-sensitive color capsules in contact with the color developing agent and including a coloring agent which exhibits a predetermined color, wherein the coloring layer comprises a plurality of pressure- Characterized in that the capsule is characterized in that it is prepared by synthesizing a color developing material by contact between a developing agent flowing out of the pressure-sensitive color capsule in which the pressure is applied and the developing agent.

According to another aspect of the present invention, there is provided a display device to which a protective film is attached, including: a display panel for outputting an image; And a protective film attached to a surface of the display panel, wherein the protective film comprises: a base film; And a plurality of pressure-sensitive color capsules including a color developing agent, an alignment mark for the alignment of the protective film, and a coloring agent which is in contact with the color developing agent and exhibits a predetermined color, Wherein the alignment mark is formed by synthesizing a color developing material by contact between a coloring agent which has flowed out from the pressure-sensitive color capsule and a color developing agent which has been pressurized among the plurality of pressure-sensitive color capsules, .

According to the present invention, since the alignment mark is inserted into the inside of the protective film, there is an effect that the risk of loss of the alignment mark can be reduced.

Further, according to the present invention, since the alignment mark can be formed by applying a predetermined pressure to the pressure-sensitive color capsule included in the color development layer, the deposition process for forming the alignment mark, the deposition equipment, the mask, and the substrate are not required There is an effect that it is possible to reduce the tack time and the alignment key manufacturing process.

Further, according to the present invention, an alignment mark can be formed by using an organic material including a coloring agent without using an expensive metal material, thereby reducing the manufacturing cost of the protective film.

1 is a schematic view illustrating a method of forming an alignment mark according to the related art.
2 is a cross-sectional view of a display device to which a protective film is attached according to an embodiment of the present invention.
3 is a cross-sectional view of a protective film according to an embodiment of the present invention.
4A and 4B are perspective views of a display device to which the protective film shown in FIG. 2 is attached.
5 is a cross-sectional view of a display device with a protective film according to another embodiment of the present invention.
6 is a cross-sectional view of a protective film according to another embodiment of the present invention.
7A is a cross-sectional view of a protective film according to another embodiment of the present invention.
7B is a cross-sectional view of a display device with a protective film according to another embodiment of the present invention.

It should be noted that, in the specification of the present invention, the same reference numerals as in the drawings denote the same elements, but they are numbered as much as possible even if they are shown in different drawings.

Meanwhile, the meaning of the terms described in the present specification should be understood as follows.

The word " first, "" second," and the like, used to distinguish one element from another, are to be understood to include plural representations unless the context clearly dictates otherwise. The scope of the right should not be limited by these terms.

It should be understood that the terms "comprises" or "having" does not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or combinations thereof.

When a structure is described as being "on" or "under" another structure, such a substrate includes both the structures as well as the third structure interposed therebetween . However, if the terms "directly above" or "directly below" are used, these structures should be construed as limited to being in contact with each other.

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

In one embodiment

2 is a cross-sectional view of a display device to which a protective film is attached according to an embodiment of the present invention.

2, a display device 200 having a protective film according to an exemplary embodiment of the present invention includes a display panel 210 and a protective film 220 do.

In one embodiment, the display panel 210 may be a liquid crystal display panel, a field emission display panel, or an organic light emitting display (Organic Light Emitting Device Panel), and the like.

The display panel 210 includes a display area 212 in which an image is displayed and a non-display area 214 excluding a display area. A plurality of pixels (not shown) for displaying an image are formed in the display region 212. A pad portion for supplying video data and power to each pixel of the display region 212 Is formed.

The protective film 220 is attached to the surface of the display panel 210 to protect the display panel 210 from scratches or external impacts.

In one embodiment, the protective film 220 includes a base film 222, an adhesive layer 224, a colored layer 225, and a coloring layer 228, as shown in FIG.

The base film 222 is formed of a transparent material to protect the display panel 210. In one embodiment, the base film 222 may be formed using a transparent polymeric resin-based material. For example, the base film 222 may be formed using a material such as PET (polyethylene terephthalate), PE (polyethylene), PP (polypropylene), or PO (polyolefin). In another embodiment, the base film 222 may be formed using transparent acrylic resin (transparent resin) or transparent resin (Urethane Resin).

The adhesive layer 224 adheres the first surface of the base film 222 to the surface of the display panel 210. More specifically, the adhesive layer 224 adheres the first surface of the base film 222 to the surface of the display panel 210 on which the image is output.

The color developing layer 225 is provided on the second surface of the base film 222 and includes an alignment mark 227 for the coloring agent 226 and the alignment of the protective film. The color developing layer 225 may be formed using a polymer resin. The second surface of the base film 222 refers to a surface opposite to the first surface of the base film 222.

In one embodiment, the color developer 226 may be comprised of a polymeric polymer including a functional group that reacts with a coupler included in the color development layer 228. For example, the developing agent 226 may be composed of a substance such as a benzene-based, naphthalene-based amine, diphenolamines, or diazo compound.

The alignment mark 227 aligns the alignment mark with an alignment mark (not shown) provided on the display panel 210 so that the protection film 220 can be attached to the display panel 210 at an accurate position. At this time, the alignment mark provided on the display panel 210 may be formed in a non-display area (e.g., a pad part) of the display panel. For example, the alignment keys provided on the display panel 210 may be formed to be symmetrical with respect to each other at corner portions of the pad portion.

The alignment mark 227 according to the present invention is generated by an oxidation / reduction reaction occurring upon contact between the coloring agent flowing out of the coloring layer 228 and the coloring agent 226. More specifically, the electron transfer occurs due to the contact between the coloring agent and the coloring agent 226, and the coloring material is synthesized in the coloring agent 226 through the electron transfer, thereby forming the alignment mark 227.

The description of the formation of the alignment mark 227 will be more specifically described in the section on the coloring layer 228.

The coloring layer 228 is formed on the coloring layer 225 and includes a plurality of pressure-sensitive color capsules 229 for forming the alignment mark 227. Specifically, the plurality of pressure-sensitive color capsules 229 included in the coloring layer 228 include a coloring agent which contacts with the coloring agent 226 contained in the coloring layer 225 and develops a predetermined color.

2, the pressure sensitive color capsule 229 includes a first region 300 filled with a coloring agent and a protective film 310 surrounding the first region 300. In one embodiment, . The coloring agent filled in the first region 300 may be composed of a polymer polymer having a functional group having color expression. The protective layer 310 is formed to surround the first region 300 to protect the first region 300 and may be formed using a polymer resin. Although the protective film 310 is shown as one layer in the enlarged view of FIG. 2, the protective film 310 may be composed of two or more layers.

3, when a local pressure P is applied to the coloring layer 228 using a pin having a predetermined shape, a plurality of pressure-sensitive The pressure-sensitive color capsule located at the pressure point (a) of the color capsules 229 is broken and the coloring agent contained in the first region 300 flows out to the color developing layer 225, The alignment mark 227 is formed on the coloring layer 225 by making contact with the coloring layer 226.

3, when a local pressure P is applied on the coloring layer 228 by using a pin having a "+" shape, the coloring agent and the coloring agent 226 contact each other only at the point (a) So that the " + "-shaped alignment key 227 is formed.

2 and 3, it is shown that the alignment mark 227 having a "+" shape is formed because the local pressure P is applied on the coloring layer 228 by using the "+ & The shape of the pin may be designed to have various shapes without being limited to "+", and the shape of the alignment mark 227 may be variously changed according to the shape of the pin. Hereinafter, for convenience of explanation, it is assumed that the alignment mark 227 has a "+" shape.

The pressure P required for the destruction of the pressure-sensitive color capsule 229 is proportional to the size of the pressure-sensitive color capsule 229. At this time, the size of the pressure-sensitive color capsule 229 is controlled by the thickness of the protective film 310 and the number of layers of the protective film 310. In one embodiment, the size of the pressure-sensitive color capsule 229 can be adjusted such that the pressure P required for the destruction of the pressure-sensitive color capsule 229 is in the range of 0.1 Mpa to 500 Mpa, The size of the pressure-sensitive color capsule 229 can be adjusted to 0.01 to 10 [mu] m.

Since the resolution of the alignment mark 227 is inversely proportional to the size of the pressure-sensitive color capsule 229, the size of the pressure-sensitive color capsule 229 may be reduced in order to increase the resolution of the alignment mark 227, .

The color developing layer 225 and the coloring layer 228 may be formed on the second surface of the base film 222 to improve the visibility of the image output through the display panel 210. In this case, And may be formed in an area corresponding to the display area 214. [

4A, the color developing layer 225 and the coloring layer 228 may be formed in a quadrangular shape on the second surface of the base film 222. In this case, According to this example, since the color developing layer 225 and the coloring layer 228 are formed in a quadrangular shape on the non-display area 214 of the display panel 210, the output image can be prevented from being obscured The position of the alignment mark 227 can be changed variously, so that the alignment of the alignment mark 227 can be changed or the alignment mark 227 can be more easily aligned.

4B, the color developing layer 225 and the coloring layer 228 may be formed on the four corners 222a, 222b, 222c, and 222d on the second surface of the base film 222. In other words, have. Since the color developing layer 225 and the coloring layer 228 are formed only on the four corner portions 222a, 222b, 222c, and 222d on the non-display region 214 of the display panel 210, And the manufacturing cost of the protective film 220 can be reduced by minimizing the area where the color developing layer 225 and the coloring layer 228 are formed.

FIG. 3 is a cross-sectional view showing a configuration before the protective film 220 according to the embodiment of the present invention shown in FIG. 2 is attached to the display panel 210. 3, before the protective film 220 is attached to the display panel 210, the front surface of the base film 222 including the coloring layer 228 and the back surface of the adhesive layer 224 222) are respectively attached to the opposite surfaces of the protective release papers (410). This protective release paper 410 is removed when the protective film 220 is attached to the display panel 210.

Other Embodiments

5 is a cross-sectional view of a display device with a protective film according to another embodiment of the present invention.

5, a display device 500 with a protective film according to another embodiment of the present invention includes a display panel 510 and a protective film 520 do.

In one embodiment, the display panel 510 may be a liquid crystal display panel, a field emission display panel, or an organic light emitting display (Organic Light Emitting Device Panel), and the like.

The protective film 520 is attached to the surface of the display panel 210 to protect the display panel 510 from scratches or external impacts.

In one embodiment, the protective film 520 includes a base film 522 and an adhesive layer 524, as shown in FIG.

The base film 522 is formed of a transparent material to protect the display panel. In one embodiment, the base film 522 may be formed using a transparent polymeric resin-based material. For example, the base film 522 may be formed using a material such as PET (polyethylene terephthalate), PE (polyethylene), PP (polypropylene), or PO (polyolefin). In another embodiment, the base film 522 may be formed using a transparent acrylic resin (transparent polymer) or a transparent Urethane polymer.

The adhesive layer 524 adheres the first surface of the base film 522 to the surface of the display panel 510. More specifically, the adhesive layer 524 adheres the first surface of the base film 522 to the surface of the display panel 510 on which the image is output.

In one embodiment, the adhesive layer 524 is provided with a color developer 530, an alignment mark 540 for aligning the protective film 510, and a coloring agent that is in contact with the color developer 530 to develop a predetermined color A plurality of pressure-sensitive color capsules 550 are included.

The color developer 530 may be composed of a polymer including a functional group that reacts with a coupler. For example, the developer 530 may be composed of a substance such as a benzene-based, naphthalene-based amine, diphenolamine, or diazo compound.

The alignment mark 540 aligns the alignment mark with an alignment mark provided on the display panel 510 so that the protection film 520 can be attached to the display panel 510 at an accurate position. At this time, the alignment mark provided on the display panel 510 may be formed in a non-display area (e.g., a pad part) of the display panel. For example, the alignment marks provided on the display panel 510 may be formed to be symmetrical with respect to each other at corner portions of the pad portion.

The alignment mark 540 according to the present invention is generated by the oxidation / reduction reaction occurring upon contact between the coloring agent flowing out of the pressure-sensitive color capsule 550 and the developing agent 530 due to the destruction of the pressure-sensitive color capsule 550 do. More specifically, the electron transfer occurs due to the contact between the coloring agent and the coloring agent 530, and the coloring material is synthesized in the coloring agent 530 through the electron transfer, thereby forming the alignment ink 540.

The description of the formation of the alignment ink 540 will be described in more detail below with respect to the pressure-sensitive color capsule 550.

The plurality of pressure-sensitive color capsules 550 includes a coloring agent which is in contact with the coloring agent 530 and develops a predetermined color. 5, the pressure sensitive color capsule 550 includes a first region 552 filled with a coloring agent and a protective film 554 enclosing the first region 552. In one embodiment, . The coloring agent filled in the first region 552 may be composed of a polymer polymer having a functional group having color expression. The protective film 554 is formed in a manner to surround the first region 552 to protect the first region 552, and may be formed using a polymeric resin. In the enlarged view of FIG. 5, the protective film 554 is shown as one layer for convenience of explanation. However, in the embodiment to be modified, the protective film 554 may be formed of two or more layers.

6, a plurality of pressure-sensitive color capsules (not shown) included in the adhesive layer 524 are formed by applying a local pressure P onto the adhesive layer 524 using pins of a predetermined shape, The pressure-sensitive color capsule 550 located at the point where the pressure P is applied is broken and the coloring agent contained in the first region 552 flows out to the outside, The alignment mark 540 is formed.

6, when a local pressure P is applied on the adhesive layer 524 by using a pin having a " + "shape, the color developer and the color developer 530 come into contact with each other only at the point where the pressure is applied, Shaped inlaid key 540 is formed.

In FIGS. 5 and 6, it is shown that the alignment mark 540 having a "+" shape is formed because the local pressure P is applied on the adhesive layer 524 by using the pin of "+" May be designed to have various shapes without being limited to "+ ", and the shape of the alignment mark 540 may be variously changed according to the shape of the pins. Hereinafter, for convenience of explanation, it is assumed that the alignment key 540 has a "+" shape.

The pressure P required for the destruction of the pressure-sensitive color capsule 550 is proportional to the size of the pressure-sensitive color capsule 550. At this time, the size of the pressure-sensitive color capsule 550 is controlled by the thickness of the protective film 554 and the number of layers of the protective film 554. In one embodiment, the size of the pressure-sensitive color capsule 550 can be adjusted such that the pressure P required for the destruction of the pressure-sensitive color capsule 550 is in the range of 0.1 Mpa to 500 Mpa, If so, the size of the pressure-sensitive color capsule 550 can be adjusted from 0.01 um to 10 um.

Since the resolution of the alignment mark 540 is inversely proportional to the size of the pressure-sensitive color capsule 550, the size of the pressure-sensitive color capsule 550 may be reduced to increase the resolution of the alignment mark 540 .

6 is a view showing a configuration before the protective film 520 according to another embodiment of the present invention is attached to the display panel 510. FIG. 6, the front surface of the base film 522 and the rear surface of the adhesive layer 524 (opposite to the surface contacting with the base film 522) before the protective film 520 is attached to the display panel 510 And a protective release paper 610 is attached to each of them. This protective release paper 610 is removed when the protective film 520 is attached to the display panel 510.

In another embodiment

In the above-described embodiments, it has been described that an alignment mark is left on the protective film attached on the display panel. However, in a modified embodiment, the alignment film may not be included in the protective film attached on the display panel. Hereinafter, another embodiment of the present invention will be described in detail with reference to Figs. 7A and 7B.

FIG. 7A is a view showing the construction of a protective film 720 according to another embodiment of the present invention, and FIG. 7B is a view showing a display device 700 with a protective film according to another embodiment of the present invention .

7A, the protective film 720 includes a base film 722, an adhesive layer 724, a color developing layer 725, and a coloring layer 728. The protective film 720 includes a protective release paper 738 on the back surface of the adhesive layer 724, between the base film 722 and the color development layer 725, and on the upper surface of the color development layer 728.

The adhesive layer 724, the color developing layer 725, and the coloring layer 728 except that the color developing layer 725 and the coloring layer 728 are formed on the entire surface of the base film 722, The adhesive layer 224, the color developing layer 225, and the coloring layer 228 shown in FIG. 2, detailed description thereof will be omitted.

7B, the protection film 720 according to this embodiment is attached on the display panel 710 using the alignment key 727 included in the color development layer 725, The color developing layer 725 and the coloring layer 728 are removed together. The coloring layer 728 and the coloring layer 728 do not remain on the final display panel and as a result the protective film 520 attached to the display panel 710 does not include the alignment mark 727 .

It will be understood by those skilled in the art that the present invention may be embodied in other specific forms without departing from the spirit or essential characteristics thereof.

It is therefore to be understood that the above-described embodiments are illustrative in all aspects and not restrictive. The scope of the present invention is defined by the appended claims rather than the detailed description and all changes or modifications derived from the meaning and scope of the claims and their equivalents are to be construed as being included within the scope of the present invention do.

200, 500, 700: display device 210, 510, 710: display panel
220, 520: 720: protective film 222, 522, 722: base film
224, 524, 724: adhesive layer 225, 725: colored layer
226, 530, 726: color developer 227, 540, 727:
228, 728: coloring layer 229, 550, 729: pressure-sensitive color capsule

Claims (10)

A display panel for outputting an image; And
And a protective film attached to a surface of the display panel,
The above-
A base film;
An adhesive layer for attaching the first surface of the base film to the surface of the display panel;
A color developing layer provided on the second surface of the base film and having an alignment mark for aligning the color developing agent and the protective film; And
A color developing layer provided on the color developing layer and having a plurality of pressure sensitive color capsules in contact with the color developing agent and containing a coloring agent which exhibits a predetermined color,
Wherein the alignment mark is formed by synthesizing a color developing material by contact between a coloring agent flowing out of the pressure-sensitive color capsule and a color developing agent, the pressure-sensitive color capsule having the pressure-sensitive color capsule, Display device. The method according to claim 1,
Wherein the display panel includes a display region in which the image is displayed and a non-display region excluding the display region,
Wherein the coloring layer and the coloring layer are provided on a second surface of the base film in a region corresponding to a non-display region of the display panel. 3. The method of claim 2,
Wherein the coloring layer and the coloring layer are provided in a quadrangular shape on the second surface of the base film. 3. The method of claim 2,
Wherein the coloring layer and the coloring layer are provided at four corners on the second surface of the base film. A display panel for outputting an image; And
And a protective film attached to a surface of the display panel,
The above-
A base film; And
A plurality of pressure-sensitive color capsules including a coloring agent, an alignment mark for aligning the protective film, and a coloring agent which is in contact with the coloring agent to develop a predetermined color, wherein the base film is provided on the surface of the display panel And an adhesive layer for attaching the adhesive layer to the substrate,
Wherein the alignment mark is formed by synthesizing a color developing material by contact between a coloring agent flowing out of the pressure-sensitive color capsule and a color developing agent, the pressure-sensitive color capsule having the pressure-sensitive color capsule, Display device. 6. The method according to claim 1 or 5,
Wherein the plurality of pressure-sensitive color capsules comprise:
A first region filled with the coloring agent; And
And at least one protective film covering the first area. 6. The method according to claim 1 or 5,
Wherein the pressure applied to the pressure-sensitive color capsule for the release of the color developer is proportional to the size of the pressure-sensitive color capsule,
Wherein the size of the pressure-sensitive color capsule is controlled by the thickness of the protective film and the number of layers of the protective film. 6. The method according to claim 1 or 5,
Wherein the resolution of the alignment mark is inversely proportional to the size of the pressure-sensitive color capsule. 6. The method according to claim 1 or 5,
Wherein the coloring agent is composed of a polymer polymer containing a functional group having color expression,
Wherein the color developing agent comprises a polymer comprising a functional group reactive with the coloring agent. The method according to claim 1 or 5, wherein
The color developing material is synthesized through electron transfer by contact between the color former and the developing agent,
Wherein the shape of the alignment mark is the same as the shape of a pin for applying the pressure to the plurality of pressure-sensitive color capsules.
KR1020140161199A 2014-11-18 2014-11-18 Display Device Having Protection Film KR20160059592A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111095386A (en) * 2017-10-04 2020-05-01 株式会社日本显示器 Display device
KR102388923B1 (en) 2020-12-14 2022-04-21 주식회사 로드그린 All in one type of pressure-sensitive film

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111095386A (en) * 2017-10-04 2020-05-01 株式会社日本显示器 Display device
KR102388923B1 (en) 2020-12-14 2022-04-21 주식회사 로드그린 All in one type of pressure-sensitive film

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