KR20200136530A - Display panel processing apparatus and processing method of display panel using the same - Google Patents

Abstract

Provided is a display panel processing device which can easily separate dummy units from a display panel. The display panel processing device comprises: a stage having a display panel including a dummy unit mounted thereon and defining a hole overlapping the dummy unit; a pad unit disposed on the stage with the display panel interposed therebetween and defining a first passage overlapping the hole; a first pipe connected to the pad unit and defining a second passage continuing to the first passage; an air blower connected to the first pipe and blowing air to the dummy unit thorough the second passage and the first passage; and a pressure detection unit connected to the first pipe.

Description

Display panel processing device and display panel processing method using the same {DISPLAY PANEL PROCESSING APPARATUS AND PROCESSING METHOD OF DISPLAY PANEL USING THE SAME}

The present invention relates to a display panel processing apparatus and a display panel processing method using the same.

In general, electronic devices such as smart phones, digital cameras, notebook computers, navigation systems, and smart televisions that provide images to users include display devices for displaying images. The display device generates an image and provides the generated image to a user.

The display device includes a display panel that generates an image and functional elements that provide various functions to a user. Functional elements include speakers, cameras, sensors, and function buttons. A plurality of insertion holes are defined in the display panel, and functional elements are inserted into the insertion holes and connected to the display panel. During manufacturing of the display device, dummy portions of the display panel are removed to form insertion holes in the display panel. The dummy parts are cut by a laser.

An object of the present invention is to provide a display panel processing apparatus capable of easily separating dummy portions from a display panel, and a display panel processing method using the same.

In the display panel processing apparatus according to an embodiment of the present invention, a display panel including a dummy part is mounted, a stage in which a hole overlapping the dummy part is defined, and the display panel is disposed on the stage, A pad portion in which a first passage overlapping the hole is defined, a first pipe connected to the pad portion, and a second passage continuing to the first passage is defined, connected to the first pipe, and the second passage And an air blower for blowing air to the dummy part through the first passage, and a pressure sensing part connected to the first pipe.

The dummy part is removed from the display panel according to the pressure of the air.

The display panel processing apparatus further includes a first support part disposed under the stage and a second support part disposed between the stage and the first support part, and the second support part comprises an edge of the stage and the first support part. Adjacent to the rim, a waste space is defined between the stage and the first support, and the waste space is closed by the second support.

The dummy part is removed from the display panel and falls into the waste space.

The display panel processing apparatus further includes a second pipe connected to the first support part and defining an exhaust passage overlapping the exhaust hole defined in the first support part, and a dust collector connected to the second pipe to generate a suction force. do.

When the dummy part is removed, an airflow flowing through the hole, the exhaust hole, and the exhaust passage is formed.

The display panel processing apparatus further includes a laser generator disposed on the display panel to irradiate a laser to the display panel to cut the dummy part, and the five leaf particles generated when the dummy part is cut are the exhaust hole and the It is sucked into the dust collector through the exhaust passage.

The pad portion presses a portion of the display panel around the dummy portion with a predetermined pressure.

The pressure sensing unit senses the pressure of the air flowing through the first pipe.

The display panel processing apparatus further includes a control unit configured to determine a removal state of the dummy part by comparing the pressure information of the air detected by the pressure sensing unit with a reference pressure.

When the pressure information is greater than or equal to the reference pressure, the control unit determines that the dummy part is in an unremoved state, and when the pressure information is less than the reference pressure, the control unit determines the dummy part to be removed.

When the pressure information is greater than or equal to the reference pressure and the blowing time of the air is longer than the reference time, the control unit controls the air blower to increase the pressure of the air.

A method of processing a display panel according to an embodiment of the present invention includes mounting a display panel on a stage in which a hole is defined, cutting a dummy part of the display panel overlapping the hole, on the display panel, the Arranging a pad portion in which a first passage overlapping a hole is defined, and a first pipe connected to the pad portion and in which a second passage continuous to the first passage is defined, and the second passage and the first passage And removing the dummy part according to the pressure of the air by blowing air through the dummy part.

According to an embodiment of the present invention, a display panel is disposed on a stage, air is blown from the display panel toward a dummy portion of the display panel, and the dummy portion is removed by the pressure of the air, so that the dummy portion is more easily removed from the display panel. Can be.

1 is a plan view of a display panel processed by a display panel processing apparatus according to an exemplary embodiment of the present invention.
FIG. 2 is a schematic cross-sectional view of the display panel shown in FIG. 1.
FIG. 3 is a diagram illustrating a cross-sectional configuration of one pixel disposed in the pixel layer illustrated in FIG. 2.
4 is a diagram illustrating a configuration of a display panel processing apparatus according to an exemplary embodiment of the present invention.
5 is a cross-sectional view taken along line II′ shown in FIG. 4.
6 to 9 are diagrams for explaining a method of processing a display panel using the display panel processing apparatus illustrated in FIG. 4.
10 is a view for explaining the operation of the control unit for increasing the air pressure.

In this specification, when a component (or region, layer, part, etc.) is referred to as “on”, “connected”, or “coupled” to another component, it is placed directly on the other component/ It means that it may be connected/coupled or a third component may be disposed between them.

The same reference numerals refer to the same elements. In addition, in the drawings, thicknesses, ratios, and dimensions of components are exaggerated for effective description of technical content.

“And/or” includes all combinations of one or more that the associated configurations may be defined.

Terms such as first and second may be used to describe various components, but the components should not be limited by the terms. These terms are used only for the purpose of distinguishing one component from another component. For example, without departing from the scope of the present invention, a first element may be referred to as a second element, and similarly, a second element may be referred to as a first element. Singular expressions include plural expressions unless the context clearly indicates otherwise.

In addition, terms such as "below", "bottom", "above", "upper", and the like are used to describe the relationship between components shown in the drawings. The terms are relative concepts and are described based on the directions indicated in the drawings.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. In addition, terms such as terms defined in commonly used dictionaries should be interpreted as having a meaning consistent with the meaning in the context of the related technology, and unless interpreted as an ideal or excessively formal meaning, explicitly defined herein. do.

Terms such as "comprise" or "have" are intended to designate the presence of a feature, number, step, action, component, part, or combination thereof described in the specification, and one or more other features, numbers, or steps. It is to be understood that it does not preclude the possibility of addition or presence of, operations, components, parts, or combinations thereof.

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

1 is a plan view of a display panel processed by a display panel processing apparatus according to an exemplary embodiment of the present invention.

Referring to FIG. 1, the display panel DP may have a rectangular shape having long sides in a first direction DR1 and short sides in a second direction DR2 intersecting with the first direction DR1. Square vertices of the display panel DP may have a round shape. A polarizing film may be disposed on the display panel DP, and the polarizing film is shown in FIG. 2 below.

The display panel DP according to the exemplary embodiment of the present invention may be a light emitting display panel, and is not particularly limited. For example, the display panel DP may be an organic light emitting display panel or a quantum dot light emitting display panel. The emission layer of the organic light emitting display panel may include an organic light emitting material. The emission layer of the quantum dot light emitting display panel may include a quantum dot and a quantum rod. Hereinafter, the display panel DP will be described as an organic light emitting display panel.

The display panel DP may have a plane defined by the first and second directions DR1 and DR2. The plane of the display panel DP may include a display area DA displaying an image and a non-display area NDA surrounding the display area DA.

The display panel DP may include a plurality of dummy parts DUM. The dummy parts DUM may be disposed in the non-display area NDA. However, the present invention is not limited thereto, and when the display area DA extends to the non-display area NDA, the dummy parts DUM may be disposed in the display area DA. The dummy parts DUM may be cut and removed by a laser. A process for removing the dummy parts DUM will be described in detail below.

Since the dummy parts DUM are removed, insertion holes may be defined in the display panel DP. Functional elements (not shown) may be disposed in the insertion holes. The functional elements may be inserted into the insertion holes and connected to the display panel DP. Functional elements can provide various functions to a user. For example, the functional elements may include a speaker, a camera, a sensor, and a function button.

For example, five dummy parts DUM are shown, but the number of dummy parts DUM may not be limited thereto. The number of dummy parts DUM may vary according to the number of functional elements.

FIG. 2 is a schematic cross-sectional view of the display panel shown in FIG. 1.

Referring to FIG. 2, the display panel DP includes a substrate SUB, a pixel layer PXL disposed on the substrate SUB, and a thin film encapsulation layer disposed on the substrate SUB to cover the pixel layer PXL. (TFE), and a protective substrate PSUB disposed under the substrate SUB.

The substrate SUB is a plastic material having flexibility and may include polyimide (PI). The protective substrate PSUB is a flexible plastic material and may include polyimide or polyethylene terephthalate (PET).

The lower surface of the protective substrate PSUB may define the lower surface of the display panel DP. The protective substrate PSUB may be omitted. When the protective substrate PSUB is omitted, the lower surface of the substrate SUB may define the lower surface of the display panel DP.

The substrate SUB may include a display area DA and a non-display area NDA around the display area DA. The pixel layer PXL may be disposed on the display area DA. The pixel layer PXL may include a plurality of pixels, and each of the pixels may include a light emitting device.

The thin film encapsulation layer TFE may include at least two inorganic layers and an organic layer disposed between the inorganic layers. The inorganic layers may include an inorganic material, and may protect the pixel layer PXL from moisture/oxygen. The organic layer may include an organic material and may protect the pixel layer PXL from foreign substances such as dust particles.

As an example, a thin film encapsulation layer TFE for protecting the pixel layer PXL is shown, but the present invention is not limited thereto, and an encapsulation substrate (eg, Encap Glass) may be used to protect the pixel layer PXL. . When the encapsulation substrate is used, the substrate SUB may include a glass substrate to be manufactured in a rigid type.

The encapsulation substrate may be disposed on the substrate SUB, and the pixel layer PXL may be disposed between the encapsulation substrate and the substrate SUB. The encapsulation substrate may be bonded to the substrate SUB through a sealing agent disposed on the non-display area NDA of the substrate SUB.

The encapsulation substrate may include a synthetic resin substrate or a glass substrate. The sealing agent may include an inorganic adhesive such as a flit. However, the present invention is not limited thereto, and the sealing agent may include an organic adhesive. Since the pixel layer PXL can be sealed from the outside by the encapsulation substrate and the sealing agent, defects of the light emitting device due to moisture can be prevented.

A polarizing film POL may be disposed on the display panel DP. The polarizing film POL may be attached to the display panel DP by an adhesive OCA. The adhesive (OCA) may include an optical clear adhesive (Optical Clear Adhesive). The polarizing film POL may be defined as an antireflection film.

The polarizing film POL may reduce reflectance of external light incident on the display panel DP toward the display panel DP. For example, the polarizing film POL may include a phase retarder and a polarizer. The polarizing film POL may be omitted.

FIG. 3 is a diagram illustrating a cross-sectional configuration of one pixel disposed in the pixel layer illustrated in FIG. 2.

Referring to FIG. 3, the pixel PX may include a light emitting device OLED and a transistor TR connected to the light emitting device OLED. The light emitting device OLED may include an organic light emitting diode. The transistor TR and the light emitting device OLED may be disposed on the substrate SUB. The layer on which the transistor TR and the light emitting device OLED are disposed may be defined as a pixel layer PXL.

The protective substrate PSUB may be disposed under the substrate SUB, and the buffer layer BFL may be disposed on the substrate SUB. The buffer layer BFL may include an inorganic material. The buffer layer BFL may be omitted.

The semiconductor layer SM of the transistor TR may be disposed on the buffer layer BFL. The semiconductor layer SM may include a semiconductor made of an inorganic material such as amorphous silicon or poly silicon or an organic semiconductor. Also, the semiconductor layer SM may include an oxide semiconductor. Although not shown in FIG. 3, the semiconductor layer SM may include a source region, a drain region, and a channel region between the source region and the drain region.

The first insulating layer INS1 may be disposed on the buffer layer BFL to cover the semiconductor layer SM. The first insulating layer INS1 may include an inorganic material. A gate electrode GE of the transistor TR overlapping the semiconductor layer SM may be disposed on the first insulating layer INS1. The gate electrode GE may be disposed to overlap the channel region of the semiconductor layer SM.

A second insulating layer INS2 may be disposed on the first insulating layer INS1 to cover the gate electrode GE. The second insulating layer INS2 may be defined as an interlayer insulating layer. The second insulating layer INS2 may include an organic material and/or an inorganic material.

The source electrode SE and the drain electrode DE of the transistor TR may be disposed on the second insulating layer INS2 to be spaced apart from each other. The source electrode SE may be connected to the source region of the semiconductor layer SM through a first contact hole CH1 defined through the first insulating layer INS1 and the second insulating layer INS2. The drain electrode DE may be connected to the drain region of the semiconductor layer SM through a second contact hole CH2 defined through the first insulating layer INS1 and the second insulating layer INS2.

A third insulating layer INS3 may be disposed on the second insulating layer INS2 to cover the source electrode SE and the drain electrode DE of the transistor TR. The third insulating layer INS3 may be defined as a planarization layer providing a flat top surface, and may include an organic material.

The first electrode E1 of the light emitting device OLED may be disposed on the third insulating layer INS3. The first electrode E1 may be connected to the drain electrode DE of the transistor TR through a third contact hole CH3 defined through the third insulating layer INS3. The first electrode E1 may be defined as a pixel electrode or an anode electrode. That is, the first electrode E1 may be an anode that is a hole injection electrode.

A pixel defining layer PDL exposing a predetermined portion of the first electrode E1 may be disposed on the first electrode E1 and the third insulating layer INS3. A pixel open portion PX_OP for exposing a predetermined portion of the first electrode E1 is defined in the pixel defining layer PDL, and an area in which the pixel open portion PX_OP is disposed is defined as a pixel area PA. I can. The periphery of the pixel area PA may be defined as a non-pixel area NPA.

The organic emission layer OEL may be disposed on the first electrode E1 in the pixel open part PX_OP. The organic emission layer OEL may include an organic material capable of generating any one of red, green, and blue light. The organic emission layer OEL may generate any one of red, green, and blue light. However, the present invention is not limited thereto, and the organic light emitting layer OEL may generate white light by a combination of organic materials that generate red, green, and blue colors.

The second electrode E2 may be disposed on the pixel defining layer PDL and the organic emission layer OEL. The second electrode E2 may be defined as a common electrode or a cathode electrode. That is, the second electrode E2 may be a cathode that is an electron injection electrode. The light emitting device OLED is formed in the pixel area PA, and may include a first electrode E1, an organic emission layer OEL, and a second electrode E2.

The thin film encapsulation layer TFE may be disposed on the light emitting device OLED to cover the pixel PX. Specifically, the thin film encapsulation layer TFE may be disposed on the second electrode E2.

A first voltage for emitting the organic emission layer OEL may be applied to the first electrode E1 by the transistor TR. A second voltage having a polarity opposite to that of the first voltage may be applied to the second electrode E2. Holes and electrons injected into the organic emission layer OEL are combined to form excitons, and the light emitting device OLED may emit light while the excitons transition to a ground state. The light emitting device OLED may emit red, green, and blue light according to the flow of current to display predetermined image information.

4 is a diagram illustrating a configuration of a display panel processing apparatus according to an exemplary embodiment of the present invention.

Referring to FIG. 4, the display panel processing apparatus DPA includes a stage STG, a first support unit SUP1, a second support unit SUP2, an air blower AB, a pad unit PAD, and a first pipe PIP1. ), a connection part (CNP), a pressure detection part (PS), a control part (CON), a laser generator (LAG), a dust collector (DCL), and a second pipe (PIP2).

A display panel DP to be processed may be mounted on the stage STG. A guide line GDL for guiding an arrangement position of the display panel DP may be defined on the upper surface of the stage STG. The guide line GDL may be omitted.

A plurality of holes H may be defined in the stage STG. Hereinafter, although described in detail, the holes H may overlap each of the dummy parts DUM of the display panel DP. A plurality of vacuum holes VH may be defined in the stage STG. A predetermined suction force may be provided to the display panel DP mounted on the stage STG through the vacuum holes VH. As a result, the display panel DP mounted on the stage STG may be fixed.

The first support part SUP1 may be disposed under the stage STG. The second support part SUP2 may be disposed between the stage STG and the first support part SUP1.

The pad part PAD may be disposed on the stage STG. The pad part PAD may include a flexible material. For example, the pad part PAD may include rubber.

The first pipe PIP1 may be connected to the pad part PAD and the air blower AB. The air blower AB may blow air to the first pipe PIP1.

The pressure sensing unit PS may be connected to the first pipe PIP1 through the connection unit CNP. The pressure sensing unit PS may sense the pressure of air flowing through the first pipe PIP1.

The air blower AB and the pressure sensing unit PS may be connected to the control unit CON. The control unit CON may receive information on the pressure of air flowing through the first pipe PIP1 from the pressure sensing unit PS, and control the operation of the air blower AB according to the received pressure information. This operation will be described in detail below.

The dust collector DCL may be connected to the first support unit SUP1 through the second pipe PIP2, and this configuration will be described in detail below. The dust collector DCL may generate a predetermined suction force.

The laser generator LAG may be disposed on the stage STG. The laser generator LAG may generate a laser. The laser may be irradiated onto the display panel DP mounted on the stage STG. This configuration will be described in detail below.

5 is a cross-sectional view taken along line II′ shown in FIG. 4.

In FIG. 5, for convenience of explanation, a pad part PAD, an air blower AB, a control part CON, a pressure detection part PS, a connection part CNP, a first pipe PIP1, a dust collector DCL, And a second pipe (PIP2) is also shown. In addition, a pad part (PAD), an air blower (AB), a control part (CON), a pressure sensing part (PS), a connection part (CNP), a first pipe (PIP1), a dust collector (DCL), and a second pipe (PIP2) Is not shown in cross section, but shown in side view.

Referring to FIG. 5, a second support part SUP2 may be disposed between the stage STG and the first support part SUP1. The second support part SUP2 may be adjacent to the rim of the stage STG and the rim of the first support part SUP1.

The second support part SUP2 may overlap a predetermined portion of the stage STG adjacent to the edge of the stage STG and may not overlap with other portions of the stage STG. In addition, the second support portion SUP2 may overlap a predetermined portion of the first support portion SUP1 adjacent to the edge of the first support portion SUP1 and may not overlap with other portions of the first support portion SUP1.

The waste space DIS may be defined by the stage STG, the first support SUP1, and the second support SUP2. For example, a waste space DIS is defined between the stage STG and the second support SUP2, and the waste space DIS may be sealed by the second support SUP2.

The dust collector DCL may be connected to the second pipe PIP2, and the second pipe PIP2 may be connected to the lower part of the first support part SUP1. A plurality of exhaust holes EXH may be defined in the first support part SUP1. The second pipe PIP2 may be connected to the first support part SUP1 in which the exhaust holes EXH are defined.

The vacuum holes VH may be defined on the upper surface of the stage STG. The vacuum holes VH may be formed by being recessed by a predetermined depth from the upper surface of the stage STG to the lower side. Although not shown, the lower portions of the vacuum holes VH may be connected to an external vacuum pump. The vacuum pump may make the vacuum holes VH in a vacuum state.

6 to 9 are diagrams for explaining a method of processing a display panel using the display panel processing apparatus illustrated in FIG. 4.

For convenience of explanation, in FIGS. 6 to 9, the first and second pipes PIP1 and PIP2, the pad part PAD, and the connection part CNP are illustrated in cross section.

Referring to FIG. 6, the display panel DP may be mounted on the stage STG. The arrangement position of the display panel DP may be guided by the guide line GDL. The dummy part DUM of the display panel DP may overlap the hole H.

The vacuum pump makes the vacuum holes VH in a vacuum state, and a predetermined suction force may be provided to the display panel DP through the vacuum holes VH maintained in the vacuum state. As a result, the display panel DP may be fixed to the stage STG.

The laser generator LAG is disposed on the display panel DP to irradiate the laser LAR onto the display panel DP. The laser generator LAG may irradiate the laser LAR to the boundary of the dummy part DUM while moving along the boundary of the dummy part DUM. The dummy part DUM may be cut by the laser LAR.

An exhaust passage EPS may be defined in the second pipe PIP2. The exhaust passage EPS may overlap the exhaust holes EXH. The waste space DIS, the exhaust holes EXH, and the exhaust passage EPS may be spaces that are continuous with each other.

The dust collector DCL may generate suction power. When the dummy part DUM is cut, five leaf particles CPT may be generated. The polluted particles CPT may be sucked into the dust collector DCL through the waste space DIS, the exhaust holes EXH, and the exhaust passage EPS.

Referring to FIG. 7, a pad part PAD and a first pipe PIP1 may be disposed on the display panel DP. The pad part PAD may be disposed on the stage STG with the display panel DP interposed therebetween. A first passage PAS1 overlapping the hole H may be defined in the pad part PAD.

A second passage PAS2, which is a space continuous to the first passage PAS1, may be defined in the first pipe PIP1. That is, the first and second passages PAS1 and PAS2 may be spaces that are continuous with each other.

The pressure sensing unit PS may be connected to the first pipe PIP1 through the connection unit CNP. For example, the first pipe PIP1 may include a first sub pipe PIP1_1 and a second sub pipe PIP1_2. The first sub pipe PIP1_1 may be connected to one side of the connection part CNP and to the pad part PAD. The second sub pipe PIP1_2 may be connected to the other side of the connection part CNP and to the air blower AB. The pressure sensing unit PS may be connected to the lower end of the connection unit CNP. The connection part CNP may have a "T" shape in which a space is defined therein.

A second passage PAS2 may be defined in each of the first sub-pipe PIP1_1 and the second sub-pipe PIP1_2. The second passage PAS2 of the first sub-pipe PIP1_1 and the second passage PAS2 of the second sub-pipe PIP1_2 may be defined as mutually continuous spaces through the inner space of the connection part CNP.

The pad part PAD is disposed on the display panel DP, and may press a portion of the display panel DP around the dummy part DUM with a predetermined pressure. Accordingly, the first passage PAS1 defined in the pad part PAD may be blocked from the outside. The suction force generated by the dust collector DCL may be maintained.

Referring to FIG. 8, the air blower AB may blow air to the dummy part DUM through the second passage PAS2 and the first passage PAS1. The pressure of air generated according to the flow of air may be sensed by the pressure sensing unit PS. The pressure of the air sensed by the pressure sensing unit PS may be provided to the controller CON as pressure information.

Referring to FIG. 9, the dummy part DUM is separated from the display panel DP and dropped into the waste space DIS according to the pressure of air provided through the second passage PAS2 and the first passage PAS1. can do. The dummy part DUM may be easily removed from the display panel DP according to the pressure of the air and may be disposed on the first support part SUP1.

Since the dust collector DCL generates a suction force toward the lower part of the first support part SUP1, the dummy part DUM can more easily fall into the waste space DIS. That is, the dummy portion DUM may be more easily removed from the display panel DP.

When the dummy part DUM is removed, the air blown through the second passage PAS2 and the first passage PAS1 flows through the hole H, the exhaust holes EXH, and the exhaust passage EPS. I can. Accordingly, airflow flowing through the hole H, the exhaust holes EXH, and the exhaust passage EPS may be formed.

As an example, a process of removing one dummy portion DUM has been described, but other dummy portions DUM may be removed in the same manner as the process described in FIGS. 6 to 9. The removed dummy parts DUM may be collected in the waste space DIS and then removed to the outside. Although not shown, the first and second support portions SUP1 and SUP2 may be separated from the stage STG, and the dummy portions DUM disposed on the first support portion SUP1 may be discarded.

8 and 9, the control unit CON may determine the removal state of the dummy part DUM using pressure information provided from the pressure sensing part PS. The controller CON may determine the removal state of the dummy part DUM by comparing the pressure information with the reference pressure.

When the pressure information is greater than or equal to the reference pressure, the control unit CON may determine the dummy part DUM as an unremoved state. When the pressure information is less than the reference pressure, the controller CON may determine that the dummy part DUM is removed.

As shown in FIG. 8, when air is provided to the dummy portion DUM through the second passage PAS2 and the first passage PAS1 and the dummy portion DUM is not removed, substantially, the first passage Since the PAS1 is blocked by the dummy part DUM, the pressure of the air may increase. Accordingly, the pressure of air flowing through the first pipe PIP1 may increase.

As shown in FIG. 9, when the dummy portion DUM is removed by the pressure of air provided through the second passage PAS2 and the first passage PAS1, the first passage PAS1 is not blocked, Air may flow through the hole H, the exhaust holes EXH, and the exhaust passage EPS. Accordingly, the pressure of air flowing through the first pipe PIP1 may be lowered.

The pressure of the air in the first pipe PIP1 is sensed by the pressure sensing unit PS, and a state of removing the dummy portion DUM may be determined using the sensed pressure of the air. For example, a predetermined reference pressure is set, and as described above, the control unit CON determines the removal state of the dummy part DUM by comparing the pressure of the air flowing through the first pipe PIP1 with the reference pressure. can do.

When the dummy part DUM is removed, the control unit CON may stop the operation of the air blower AB. Thereafter, an operation of removing the other dummy part DUM may be performed.

10 is a diagram for explaining an operation of a control unit for increasing air pressure.

Referring to FIG. 10, various display panels may be processed by the display panel processing apparatus DPA. The states of the display panels may be substantially different from each other. For example, the first display panel may have a harder characteristic than the second display panel. In this case, it may be difficult to remove the dummy part of the first display panel. The display panel DP' illustrated in FIG. 10 may be a display panel having a harder characteristic than the display panel DP illustrated in FIGS. 8 and 9.

In FIG. 8, the pressure of air blown from the air blower AB may have a first air pressure. Even if the first air pressure is continuously provided to the dummy portion DUM' of the display panel DP' shown in FIG. 10, the dummy portion DUM' may not be removed from the display panel DP'. In this case, the process may not be stopped unless the user forcibly terminates the operation of the display panel processing apparatus DPA.

When the pressure of air is greater than or equal to the reference pressure and the blowing time of air is longer than the reference time, the control unit CON may control the air blower AB such that the pressure of air is increased. That is, the air blower AB may blow air more strongly.

Therefore, when the time when air having the first air pressure is provided to the dummy part DUM' is longer than the reference time, the pressure of the air provided to the dummy part DUM' is the second air pressure GP greater than the first air pressure Can be changed to Since the pressure of the air provided to the dummy portion DUM' increases, the dummy portion DUM' can be easily removed.

As a result, the display panel processing apparatus DPA according to an exemplary embodiment of the present invention can more easily remove the dummy parts DUM and DUM' of the display panels DP and DP'.

Although described with reference to the above embodiments, those skilled in the art will understand that various modifications and changes can be made to the present invention without departing from the spirit and scope of the present invention described in the following claims. I will be able to. In addition, the embodiments disclosed in the present invention are not intended to limit the technical idea of the present invention, and all technical ideas within the scope of the following claims and equivalents should be construed as being included in the scope of the present invention. .

DPA: Display panel processing unit DP: Display panel
DUM: Dummy part STG: Stage
SUP1,SUP2: first and second support H: hole
VH: vacuum hole AB: air blower
CON: control unit PAD: pad unit
LAG: laser generating unit PS: pressure sensing unit
PIP1, PIP2: first and second pipes PIP1_1, PIP1_2: first and second sub pipes
CNP: Connection DCL: Dust collector
DIS: waste space PAS1,PAS2: first and second passages
EXH: Exhaust hole EPS: Exhaust passage

Claims (20)

A stage on which a display panel including a dummy part is mounted and a hole overlapping the dummy part is defined;
A pad portion disposed on the stage with the display panel interposed therebetween and defining a first passage overlapping the hole;
A first pipe connected to the pad part and defining a second passage continuous to the first passage;
An air blower connected to the first pipe and blowing air to the dummy portion through the second passage and the first passage; And
Display panel processing apparatus including a pressure sensing unit connected to the first pipe. The method of claim 1,
The display panel processing apparatus is removed from the display panel according to the pressure of the air. The method of claim 1,
A first support part disposed under the stage; And
Further comprising a second support portion disposed between the stage and the first support,
The second support portion is adjacent to an edge of the stage and the edge of the first support portion, a waste space is defined between the stage and the first support portion, and the waste space is sealed by the second support portion. Device. The method of claim 3,
The dummy part is removed from the display panel and falls into the waste space. The method of claim 4,
A second pipe connected to the first support and defining an exhaust passage overlapping the exhaust hole defined in the first support; And
Display panel processing apparatus further comprising a dust collector connected to the second pipe to generate a suction force. The method of claim 5,
When the dummy part is removed, an airflow flowing through the hole, the exhaust hole, and the exhaust passage is formed. The method of claim 5,
Further comprising a laser generator disposed on the display panel to irradiate a laser to the display panel to cut the dummy portion,
A display panel processing apparatus in which five leaf particles generated when the dummy part is cut are sucked into the dust collector through the exhaust hole and the exhaust passage. The method of claim 1,
A display panel processing apparatus for pressing the pad portion to a portion of the display panel around the dummy portion with a predetermined pressure. The method of claim 1,
The pressure sensing unit detects the pressure of the air flowing through the first pipe. The method of claim 1,
The display panel processing apparatus further comprises a control unit configured to determine a removal state of the dummy part by comparing the pressure information of the air sensed by the pressure sensing unit with a reference pressure. The method of claim 10,
When the pressure information is greater than or equal to the reference pressure, the control unit determines that the dummy part is in an unremoved state, and when the pressure information is less than the reference pressure, the control unit determines that the dummy part is removed. The method of claim 10,
When the pressure information is greater than or equal to the reference pressure and the blowing time of the air is longer than the reference time, the controller controls the air blower to increase the pressure of the air. Mounting the display panel on a stage in which a hole is defined;
Cutting a dummy part of the display panel overlapping the hole;
Arranging, on the display panel, a pad portion in which a first passage overlapping the hole is defined, and a first pipe connected to the pad portion and in which a second passage continuing to the first passage is defined; And
And removing the dummy part according to the pressure of the air by blowing air to the dummy part through the second passage and the first passage. The method of claim 13,
A disposal space is defined between the stage and a first support portion disposed under the stage, and the disposal space is disposed between the stage and the first support portion, and a second space is disposed between the stage and the first support portion and is adjacent to the edge of the stage and the first support portion. Sealed by the support,
The dummy part falls into the waste space and is disposed on the first support part. The method of claim 14,
Further comprising the step of generating a suction force in a dust collector connected to the first support through a second pipe,
The second pipe is connected to a lower portion of the first support portion, and an exhaust passage overlapping an exhaust hole defined in the first support portion is defined in the second pipe. The method of claim 15,
The dummy part is cut by a laser, and concave particles generated when the dummy part is cut are sucked into the dust collector through the exhaust hole and the exhaust passage. The method of claim 13,
The method of manufacturing a display panel in which the pad portion presses a portion of the display panel around the dummy portion with a predetermined pressure. The method of claim 13,
Sensing the pressure of the air through a pressure sensing unit connected to the first pipe; And
And determining a removal state of the dummy part by comparing the pressure information of the air sensed through the pressure sensing part with a reference pressure. The method of claim 18,
The step of determining the removal state of the dummy part,
Determining that the dummy part is not removed when the pressure information is greater than or equal to the reference pressure; And
And determining that the dummy part is removed when the pressure information is less than the reference pressure. The method of claim 18,
When the pressure information is greater than or equal to the reference pressure, and the blowing time of the air is longer than the reference time, raising the pressure of the air.

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