WO2023043246A1 - 표시 장치 및 이의 제조 방법 - Google Patents
표시 장치 및 이의 제조 방법 Download PDFInfo
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- WO2023043246A1 WO2023043246A1 PCT/KR2022/013842 KR2022013842W WO2023043246A1 WO 2023043246 A1 WO2023043246 A1 WO 2023043246A1 KR 2022013842 W KR2022013842 W KR 2022013842W WO 2023043246 A1 WO2023043246 A1 WO 2023043246A1
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- slimming
- substrate
- slimming part
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- 238000004519 manufacturing process Methods 0.000 title description 13
- 239000000758 substrate Substances 0.000 claims abstract description 212
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- 229910045601 alloy Inorganic materials 0.000 claims description 2
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- 239000004020 conductor Substances 0.000 claims 1
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- 101001111363 Nematostella vectensis Nematocyst expressed protein 3 Proteins 0.000 description 7
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Images
Classifications
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- 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
-
- 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
- G09F9/33—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 being semiconductor devices, e.g. diodes
Definitions
- the present invention relates to a display device and a manufacturing method thereof.
- a display device is an electronic device for displaying an image, and recently, as technology develops, research on a curved display device is being conducted to increase the sense of immersion in an image.
- a curved display device provides a sense of immersion by bending the viewing surface to make the viewer feel as if they are in a space.
- a flat panel display device is made thin and then the display panel is bent.
- the thickness of the display device may be designed and manufactured to be thin at the time of initial manufacture, but if not, a process such as etching or polishing (hereinafter referred to as "slimming") is performed to reduce the thickness of the display device. ) and then bent.
- the etching process for slimming may be performed by disposing masking members to prevent damage to the conductive pattern and the circuit by the etchant, and then spraying or flowing the etchant onto the members to be etched.
- An object to be solved by the present invention is to provide a display device having a small curvature of 50 mm or less and having an improved possibility of breakage during manufacture.
- Another object to be solved by the present invention is to provide a manufacturing method of a display device having a small curvature of 50 mm or less and having improved breakage during manufacture.
- a display device for solving the above problems includes a first substrate; a second substrate facing the first substrate and having one surface and the other surface facing the one surface; and a light emitting element layer disposed on one surface of the second substrate, wherein the first substrate includes a lower slimming portion and a lower non-slimming portion surrounding the lower slimming portion in plan view, wherein the second substrate includes an upper slimming portion and an upper non-slimming portion surrounding the upper slimming portion in plan view, wherein a planar area of the upper slimming portion is greater than a planar area of the lower slimming portion.
- a display device for solving the above problems is a display device having a folding area extending along a first direction and a non-folding area positioned around the folding area, including a first substrate; a second substrate facing the first substrate and having one surface and the other surface facing the one surface; and a light emitting element layer disposed on one surface of the second substrate, wherein the first substrate includes a lower slimming portion and a lower non-slimming portion surrounding the lower slimming portion in plan view, wherein the second substrate includes an upper slimming portion and an upper non-slimming portion surrounding the upper slimming portion on a plane, wherein the thickness of the second substrate is different from that of the first substrate.
- a method of manufacturing a display device includes a first substrate having a first surface and a second surface opposite to the first surface defined, and a third surface and a third surface facing the first substrate. preparing a second substrate having a fourth surface opposite to the third surface defined, and a light emitting element layer disposed on the third surface of the second substrate; etching the first substrate; and etching the second substrate, wherein an etched area of the second substrate is greater than an etched area of the first substrate.
- the possibility of breakage during manufacture may be improved with a small curvature of 50 mm or less.
- FIG. 1 is a plan view of a display device according to an exemplary embodiment
- FIG. 2 is a plan view showing details of a second substrate, a driving connection film, and a driving circuit board of the display device of FIG. 1 .
- FIG. 3 is a plan view illustrating a first substrate of the display device according to FIG. 1 in detail.
- FIG. 4 is a plan view showing the display device according to FIG. 1 in detail.
- FIG. 5 is a cross-sectional view taken along line I-I′ of FIG. 4 .
- FIG. 6 is an enlarged cross-sectional view of area A of FIG. 5 .
- FIG. 7 is a cross-sectional view taken along line II-II' of FIG. 4 .
- FIG. 8 is a cross-sectional view taken along line III-III' of FIG. 4 .
- FIG. 9 is a cross-sectional view in which the driving connection film of FIG. 8 is bent.
- FIG. 10 and 11 are cross-sectional views showing the display device according to FIG. 1 in a folded state.
- FIG. 12 and 13 are cross-sectional views illustrating the display device of FIG. 1 in a folded state.
- 14 to 24 are process-step cross-sectional views of a method of manufacturing a display device according to an exemplary embodiment.
- 25 is a plan view of a second substrate according to another embodiment.
- 26 is a cross-sectional view of a display device including a second substrate according to FIG. 25 .
- 27 is a plan view of a first substrate according to another embodiment.
- FIG. 28 is a cross-sectional view of the display device including the first substrate according to FIG. 27 .
- 29 is a plan view of a first substrate according to another embodiment.
- FIG. 30 is a cross-sectional view of the display device including the first substrate according to FIG. 29 .
- FIG. 1 is a plan view of a display device according to an exemplary embodiment
- FIG. 2 is a plan view showing in detail a second substrate, a driving connection film, and a driving circuit board of the display device of FIG. 1
- FIG. 3 is a plan view illustrating a first substrate of the display device according to FIG. 1 in detail
- FIG. 4 is a plan view showing the display device according to FIG. 1 in detail.
- FIG. 5 is a cross-sectional view taken along line I-I′ of FIG. 4 .
- FIG. 6 is an enlarged cross-sectional view of area A of FIG. 5 .
- FIG. 7 is a cross-sectional view taken along line II-II' of FIG. 4 .
- FIG. 8 is a cross-sectional view taken along line III-III' of FIG. 4 .
- 9 is a cross-sectional view in which the driving connection film of FIG. 8 is bent.
- the display device 1 may include a small game machine, a large game machine such as a slot machine used in a casino, an electronic blackboard, an electronic book, a smart phone, a mobile phone, a tablet PC, a personal digital assistant (PDA), and a portable multimedia device (PMP).
- a small game machine such as a slot machine used in a casino
- an electronic blackboard such as a slot machine used in a casino
- an electronic book such as a slot machine used in a casino
- a smart phone such as a slot machine used in a casino
- a mobile phone such as a smart phone, a mobile phone, a tablet PC, a personal digital assistant (PDA), and a portable multimedia device (PMP).
- PDA personal digital assistant
- PMP portable multimedia device
- Player televisions, personal computer monitors, notebook computers, car navigation systems, car dashboards, digital cameras, camcorders, external billboards, electric signs, various medical devices, various inspection devices, various home appliances including displays such as refrigerators and washing machines, It may include an Internet of Things device and the like, but is not limited to the above examples.
- the display device 1 includes two opposing long sides (upper and lower sides when looking at the display surface in the drawing) and two short sides (left and right sides when viewing the display surface in the drawing). may have a rectangular shape. Based on the direction of the normal display screen, the long side of the display device 1 may be horizontally arranged as shown in FIG. 1, but the long side may also be vertically arranged.
- the first direction DR1 may be the extension direction of the long side of the display device
- the second direction DR2 may be the extension direction of the short side of the display device
- the third direction DR3 may be the thickness direction of the display device.
- One side of the first direction DR1 is the right short side of the display device 1
- the other side of the first direction DR1 is the left short side of the display device 1
- one side of the second direction DR2 is the display device 1
- the other side of the second direction DR2 may be defined as the lower long side of the display device 1, but it should be understood that the above definition of the direction axis is relative.
- an organic light emitting display may be applied as the display device 1 .
- an organic light emitting display device will be described as an example of the display device 1, but the display device 1 is not limited thereto, and an electrophoretic display device (EPD), a liquid crystal display device (LCD), an inorganic EL It is also applicable to a display device, a plasma display device (PDP), a field emission display device (FED), and the like.
- EPD electrophoretic display device
- LCD liquid crystal display device
- FED field emission display device
- the display device 1 includes a first substrate 100, a second substrate 200 facing the first substrate 100, and a light emitting element layer disposed between the first substrate 100 and the second substrate 200 ( EDL) may be included.
- a sealing member SL is disposed around the edges of the first substrate 100 and the second substrate 200 to couple the first substrate 100 and the second substrate 200 and protect the light emitting device layer EDL from the outside. can do.
- the display device 1 may be a bottom emission type organic light emitting display device.
- light emitted from the light emitting device layer EDL may be emitted in a direction toward the second substrate 200 . That is, the second substrate 200 may be disposed above the first substrate 100 in the display direction.
- the second substrate 200 may protrude more than the first substrate 100 .
- the other end of the second substrate 200 in the second direction DR2 may protrude more than the other end of the first substrate 100 in the second direction DR2 .
- the area protruding from the other side of the second substrate 200 in the second direction DR2 compared to the first substrate 100 is hereinafter defined as the protruding area PTR of the second substrate 200, and in the thickness direction,
- An overlapping region between the first substrate 100 and the second substrate 200 may be defined as an overlapping region OVR of the second substrate 200 .
- the protruding region PTR may not overlap the first substrate 100 .
- a driver for driving the light emitting device layer EDL disposed between the second substrate 200 and the first substrate 100 may be disposed or attached to the protruding region PTR of the second substrate 200 .
- the driving unit may include a driving connection film TAB and a driving circuit board MB connected thereto, and the dual driving connection film TAB is disposed on the protruding region PTR of the second substrate 200.
- the second substrate 200 may include one surface facing the first substrate 100 and the other surface opposite to the one surface.
- the other surface may be a display surface of the display device 1 .
- the first substrate 100 may include one surface facing the second substrate 200 and the other surface opposite to the one surface.
- the driving connection film TAB may be attached to one surface of the second substrate 200 .
- a driving chip IC may be disposed on the driving connection film TAB.
- the first substrate 100 may include an Invar alloy
- the second substrate 200 may include glass or quartz.
- a circuit driving layer may be further included between the first substrate 100 and the light emitting device layer EDL.
- the circuit driving layer may provide a driving signal provided from the driver to the light emitting device layer EDL to drive the light emitting device layer EDL.
- the circuit driving layer may include a plurality of wires, a metal layer, a semiconductor layer, an insulating layer, and the like. Since the circuit driving layer is widely known in the art, a detailed description thereof will be omitted.
- the driving connection film TAB serves to connect the first substrate 100 and the driving circuit board MB or main circuit board or main circuit board.
- the driving connection film TAB may be attached to one surface of the second substrate 200 via a conductive anisotropic film. However, it is not limited thereto, and the driving connection film TAB may be directly attached to one surface of the second substrate 200 through soldering or ultrasonic bonding.
- the driving connection film TAB is a film including signal lines and may include a flexible film. It may be a flexible printed circuit board (FPC), a tab, a connect film, and the like.
- a driving circuit board MB may be attached to one end of the driving connection film TAB.
- the driving connection film TAB and the driving circuit board MB may be attached by a conductive anisotropic film interposed therebetween.
- soldering or ultrasonic bonding is used to couple the driving connection film TAB and the driving circuit board MB, the second conductive anisotropic film may be omitted.
- the driving circuit board MB may be formed of a printed circuit board (PCB).
- the driving chip IC may be disposed on the driving circuit board MB.
- the drawing illustrates a case in which the driving circuit board MB and the driving connection film TAB connecting the driving circuit board MB are disposed at one end of the second substrate 200 in the second direction DR2
- the driving circuit board MB and The driving connection film TAB may be disposed on one end of the second substrate 200 in the second direction DR2 or may be disposed on one or the other end of the first direction DR1 .
- a plurality of driving circuit boards MB and driving connection films TAB may be provided and attached adjacent to two or more sides of the second substrate 200 .
- one driving circuit board MB may be connected to the second substrate 200 by a plurality of driving connection films TAB. That is, as shown in FIG. 1 , a plurality of driving connection films TAB having a width smaller than that may be attached to one driving circuit board MB. Adjacent driving connection films TAB may be spaced apart from each other.
- the first substrate 100 includes a lower slimming portion EP2 and a lower non-slimming portion NEP_100 surrounding the lower slimming portion EP2 in plan view
- the second substrate 200 may include an upper slimming part EP1 and an upper non-slimming part NEP_200 surrounding the upper slimming part EP1 on a plane.
- the planar area of the upper slimming part EP1 may be larger than the planar area of the lower slimming part EP2.
- the thickness of the upper non-slimming part NEP_200 may be greater than that of the upper non-slimming part EP1.
- the thickness of the upper slimming part EP1 may be smaller than the thickness of the upper non-slimming part NEP_200.
- the thickness of the lower non-slimming part NEP_100 may be greater than that of the lower slimming part EP2. In other words, the thickness of the lower slimming part EP2 may be smaller than that of the lower non-slimming part NEP_100.
- the lower non-slimming part NEP_100 includes a seventh non-slimming part NEP7 located on the other side of the lower slimming part EP2 in the first direction DR1 and an eighth non-slimming part located on one side of the lower slimming part EP2 in the first direction DR1 ( NEP8), a ninth non-slimming part NEP9 positioned on one side in the second direction DR2, and a tenth non-slimming part NEP10 positioned on the other side in the second direction DR2.
- the lower slimming part EP2 may have a line shape extending along the first direction DR1. In plan view, the lower slimming part EP2 may have a rectangular shape. The planar shape of the lower slimming part EP2 may have a long side extending along the first direction DR1 and a short side extending along the second direction DR2.
- the upper slimming part EP1 may include a first upper slimming part extending along the first direction DR1.
- the first upper slimming part may completely extend from the other edge of the second substrate 200 in the first direction DR1 to one edge of the first direction DR1 in plan view.
- the first upper slimming part may include a long side extending along the first direction DR1 and a short side extending along the second direction DR2 .
- the short side of one side of the first upper slimming part in the first direction DR1 is on the same extension line as the short side of the first direction DR1 of the second substrate 200, and the other short side of the first upper slimming part in the first direction DR1 may be on the same extension line as the other short side of the second substrate 200 in the first direction DR1 .
- the upper slimming part EP1 further includes a second upper slimming part located on one side of the first upper slimming part in the second direction DR2 and a third upper slimming part located on the other side of the first upper slimming part in the second direction DR2.
- the width of the second upper slimming part in the first direction DR1 and the width of the third upper slimming part in the first direction DR1 may be smaller than the width of the first upper slimming part in the first direction DR1 .
- One long side of the first upper slimming part in the second direction (DR2) may directly contact the second upper slimming part, and the other long side of the first upper slimming part in the second direction (DR2) may directly contact the third upper slimming part. there is.
- the second upper slimming part generally contacts one long side of the first upper slimming part in the second direction DR2, and the one end of the first upper slimming part in the first direction DR1 among the long sides of the first upper slimming part in the second direction DR2 The other end of the first direction DR1 may be exposed.
- the third upper slimming part is generally in contact with the other long side of the first upper slimming part in the second direction (DR2), and one end of the other long side of the first upper slimming part in the second direction (DR2) in the first direction (DR1) The other end of the first direction DR1 may be exposed.
- the second and third upper slimming parts may each include a long side extending along the first direction DR1 and a short side extending along the second direction DR2 .
- the upper non-slimming part NEP_200 includes a first non-slimming part NEP1, a second non-slimming part NEP2, a third non-slimming part NEP3, a fourth non-slimming part NEP4, and a fifth non-slimming part ( NEP5) and a sixth non-slimming part NEP6.
- the first non-slimming part NEP1 is formed on the other side of the short side of the first direction DR1 of the second upper slimming part in the first direction DR1 and the second direction of the long side of one side of the second direction DR2 of the first upper slimming part. (DR2) can be arranged on one side.
- the second non-slimming part NEP2 includes one side of the short side of the first direction DR1 of the second upper slimming part in the first direction DR1 and the second direction of the long side of the one side of the long side of the second direction DR2 of the first upper slimming part. (DR2) can be arranged on one side.
- the third non-slimming part NEP3 is directly connected to the first and second non-slimming parts NEP1 and NEP2, and is located on one side of the long side of the second upper slimming part in the second direction DR2. can be located
- the fourth non-slimming part NEP4 is the other side of the other short side of the first direction DR1 of the third upper slimming part in the first direction DR1 and the second direction of the other long side of the second direction DR2 of the first upper slimming part. (DR2) may be placed on the other side.
- the fifth non-slimming part NEP5 has one side in the first direction DR1 of the other short side of the first direction DR1 of the third upper slimming part and a second direction of the other long side of the second direction DR2 of the first upper slimming part. (DR2) may be placed on the other side.
- the sixth non-slimming part NEP6 is directly connected to the fourth and fifth non-slimming parts NEP4 and NEP5, and is located on the other side in the second direction DR2 of the other long side of the third upper slimming part in the second direction DR2. can be located
- the overlapping region OVR includes the non-slimming parts NEP1 , NEP2 , and NEP3 of the second substrate 200 , a part of the fourth non-slimming part NEP4 , a part of the fifth non-slimming part NEP5 , and an upper slimming part ( EP1) may include parts of the first upper slimming part, the second upper slimming part, and the third upper slimming part.
- the protruding region PTR may include a portion of the fourth non-slimming portion NEP4, a portion of the fifth non-slimming portion NEP5, a sixth non-slimming portion NEP6, and a portion of the third upper slimming portion. .
- the folding area FA includes an upper slimming part EP1, a lower slimming part EP2, a seventh non-slimming part NEP7, and an eighth non-slimming part NEP8, and the first non-folding area NFA1 may include a ninth non-slimming part NEP9, the second upper slimming part, and the first to third non-slimming parts NEP1 to NEP3.
- the second non-folding area NFA2 may include the tenth non-slimming part NEP10, the third upper slimming part, and the fourth to sixth non-slimming parts NEP4 to NEP6.
- the folding area FA may have the same area as the upper slimming part EP1, and the width of the upper slimming part EP1 in the first direction DR1 is greater than the width of the lower slimming part EP2 in the first direction DR1. can be big
- the first substrate 100 and the second substrate 200 may be folded around the folding area FA. Except for the folding area FA, the non-folding areas NFA1 and NFA2 are not folded and may maintain a non-folding state. Folding operations of the first substrate 100 and the second substrate 200 are shown in FIGS. 10 and 11 and FIGS. 12 and 13 .
- 10 and 11 are cross-sectional views showing the display device according to FIG. 1 in a folded state.
- 12 and 13 are cross-sectional views illustrating the display device of FIG. 1 in a folded state.
- the folding area FA may be folded with a predetermined curvature.
- a side shape of the folded area FA having a predetermined curvature may have a curved shape.
- a non-folding area NFA distinguished from the folding area FA may not be folded.
- a side shape of the non-folding area NFA that is not folded may have a straight line shape.
- the first substrate 100 and the second substrate 200 are folded in the folding area FA so as to have a convex cross section in an upward direction
- the first substrate 100 ) and the second substrate 200 may each be folded in the folding area FA to have a convex cross section in a downward direction.
- the substrates 100 and 200 may have a predetermined radius of curvature from the center point. 10 and 11, the radius of curvature of the first substrate 100 may be smaller than the radius of curvature of the second substrate 200, and in FIGS. 12 and 13, the radius of curvature of the first substrate 100 is the second It may be greater than the radius of curvature of the substrate 200 . In one embodiment, each of the curvature radii of the first substrate 100 and the second substrate 200 may be 50 mm or less.
- the lower slimming part EP2 has a second thickness T2
- the seventh and eighth non-slimming parts NEP7 and NEP8 have a first thickness T1
- the upper slimming part (EP1) may have a third thickness (T3).
- the first thickness T1 may be greater than the second thickness T2.
- an absorption plate GTL may be disposed between one surface of the first substrate 100 and the light emitting device layer EDL.
- the absorption plate GTL may function to remove moisture penetrating into the light emitting device layer EDL from the outside.
- the third thickness T3 may be smaller than the second thickness T2.
- the first thickness T1 may be 0.7 mm
- the second thickness T2 may be 0.05 mm to 0.1 mm
- the third thickness T3 may be 0.005 mm to 0.01 mm.
- a light emitting device layer EDL may be disposed on the other surface of the upper slimming part EP1 .
- the light emitting element layer EDL includes an anode electrode ANO disposed on the other surface of the upper slimming part EP1, a common electrode CAT (or common electrode) facing the anode electrode ANO, and an anode electrode ANO.
- An organic layer EL disposed between the common electrodes CAT may be included.
- the common electrode CAT may include a reflective electrode.
- the anode electrode ANO may include a transparent or translucent electrode. Light emitted through the organic layer EL may be provided in the direction of the anode electrode ANO, or may be reflected from the cathode electrode CAT and provided in the direction of the anode electrode ANO.
- the first and second non-sling portions NEP1 and NEP2 may have a fourth thickness T4.
- the fourth thickness T4 may be greater than the third thickness T3.
- the fourth thickness T4 may be 0.05 mm.
- the thickness T1 of the ninth and tenth non-slimming parts NEP9 and NEP10 may be greater than the thickness T2 of the lower slimming part EP2.
- the thickness T4 of the third and sixth non-slimming parts NEP3 and NEP6 may be greater than the thickness T3 of the upper slimming part EP1.
- one end of the drive connection film TAB may be attached to one surface of the second substrate 200 and the other end of the drive connection film TAB may be attached to the other surface of the first substrate 100 .
- the driving circuit board MB attached to the other end of the driving connection film TAB may be overlapped on the other surface of the first substrate 100 .
- 14 to 24 are process-step cross-sectional views of a method of manufacturing a display device according to an exemplary embodiment. 14 to 24 will be described with reference to FIGS. 5 and 7 to 9 together.
- a first substrate 100', a second substrate 200' facing the first substrate 100', and light emission on one surface of the second substrate 200' The device layer (EDL), the absorber plate (GTL) on one side of the first substrate 100', and the first substrate 100' and the second substrate 100' between the first substrate 100' and the second substrate 200'.
- a sealing member SL is prepared at the edge of the substrate 200'.
- resin RS is applied on the side surfaces of the first substrate 100' and the second substrate 200'.
- the resin RS may directly contact the side surfaces of the first and second substrates 100' and 200' and the sealing member SL.
- the sealing member SL may contact the other surface of the second substrate 200' in the second non-folding area NFA2.
- a first masking member is applied to the other surfaces of the non-slimming portions NEP7 and NEP8 of the folding area FA of the first substrate 100' and the other surfaces of the non-folding areas NFA1 and NFA2 of the first substrate 100'. Place (TP1).
- the primary etching may include a process of putting the target substrates 100' and 200' into an etching bath.
- a polishing process may be performed instead of etching.
- the sealing member arrangement and taping described above may be omitted, but are not limited thereto.
- the third masking member TP3 is disposed.
- the second substrate 200' is etched secondarily.
- a polishing process may be performed instead of etching.
- the sealing member arrangement and taping described above may be omitted, but are not limited thereto.
- the first etching process used during the first etching process of the first substrate 100' Etching of the second substrate 200' by the etchant may not be performed or hardly performed.
- the second substrate 200' is first etched by the secondary etching process of the second substrate 200'. After etching, when the first substrate 100' is etched, physical damage occurs in the etching bath in which the etched second substrate 200 is immersed when the first substrate 100' is etched. can be prevented in advance.
- 25 is a plan view of a second substrate according to another embodiment.
- 26 is a cross-sectional view of a display device including a second substrate according to FIG. 25 .
- the second substrate 200_1 according to the present embodiment further includes third and fourth slimming parts EP3 and EP4, it is similar to the embodiment according to FIGS. 1 to 9 It is different.
- the third and fourth slimming parts EP3 and EP4 may have a fifth thickness T5.
- the third and fourth slimming parts EP3 and EP4 are located between the first non-slimming part NEP1 and the fourth non-slimming part NEP4 and between the second non-slimming part NEP2 and the fifth non-slimming part NEP5, respectively. can be placed in between.
- the fifth thickness T5 may have a thickness between the third thickness T3 and the fourth thickness T4 of FIG. 7 .
- the fifth thickness T5 of the third and fourth slimming parts EP3 and EP4 may be smaller than the thickness T4 of the adjacent non-slimming parts NEP1 , NEP2 , NEP3 , NEP4 , NEP5 and NEP6 of FIG. 25 . .
- FIG. 27 is a plan view of a first substrate according to another embodiment. 28 is a cross-sectional view of the display device including the first substrate according to FIG. 27 .
- the first substrate 100_1 according to the present embodiment further includes a fifth slimming part EP5 and a sixth slimming part EP6, different from the examples.
- the fifth slimming part EP5 is disposed between the other short side of the planar first substrate 100_1 in the first direction DR1 and the lower slimming part EP2, and the sixth slimming part EP6 is the planar first substrate It may be disposed between a short side of one side of the first direction DR1 of (100_1) and the lower slimming part EP2.
- Each of the fifth slimming part EP5 and the sixth slimming part EP6 may have a first thickness T1'.
- the first thickness T1' may be smaller than the first thickness T1 of the ninth and tenth non-slimming portions NEP9 and NEP10 of the first substrate 100_1 and larger than the second thickness T2. .
- 29 is a plan view of a first substrate according to another embodiment.
- 30 is a cross-sectional view of the display device including the first substrate according to FIG. 29 .
- the lower slimming part EP2_1 of the first substrate 100_2 has a short side on the other side of the first substrate 100_2 in the first direction DR1 and the first direction DR1. It is different from the embodiment according to FIGS. 1 to 9 in that it completely crosses one short side.
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Abstract
Description
Claims (26)
- 제1 기판;상기 제1 기판과 대향하고 일면 및 상기 일면에 대향하는 타면을 갖는 제2 기판; 및상기 제2 기판의 일면 상에 배치된 발광 소자층을 포함하고,상기 제1 기판은 하부 슬리밍부, 및 평면상 상기 하부 슬리밍부를 둘러싸는 하부 비슬리밍부를 포함하고,상기 제2 기판은 상부 슬리밍부, 및 평면상 상기 상부 슬리밍부를 둘러싸는 상부 비슬리밍부를 포함하며,상기 상부 슬리밍부의 평면상 면적은 상기 하부 슬리밍부의 평면상 면적보다 큰 표시 장치.
- 제1 항에 있어서,상기 하부 슬리밍부의 두께는 상기 하부 비슬리밍부의 두께보다 작고,상기 상부 슬리밍부의 두께는 상기 상부 비슬리밍부의 두께보다 작은 표시 장치.
- 제2 항에 있어서,평면상 상기 하부 슬리밍부는 제1 방향을 따라 연장되고,상기 하부 비슬리밍부는 상기 하부 슬리밍부의 상기 제1 방향과 교차하는 제2 방향 일측에 위치한 제1 하부 비슬리밍부, 및 상기 제2 방향 타측에 위치한 제2 하부 비슬리밍부를 포함하는 표시 장치.
- 제3 항에 있어서,상기 하부 비슬리밍부는 상기 하부 슬리밍부의 상기 제1 방향 타측에 위치한 제3 하부 비슬리밍부, 및상기 제1 방향 일측에 위치한 제4 하부 비슬리밍부를 포함하는 표시 장치.
- 제4 항에 있어서,평면상 상기 상부 슬리밍부는 상기 제1 방향을 따라 상기 제2 기판을 완전히 관통하는 표시 장치.
- 제4 항에 있어서,상기 상부 비슬리밍부는 평면상 상기 제2 기판의 테두리에 위치하고,상기 상부 비슬리밍부는 평면상 상기 제2 기판의 상기 제1 방향 타측 단부 및 상기 제2 방향 일측에 위치하고 상기 제2 방향을 따라 연장된 제1 상부 비슬리밍부,평면상 상기 제2 기판의 상기 제1 방향 일측 단부 및 상기 제2 방향 일측에 위치하고 상기 제2 방향을 따라 연장된 제2 상부 비슬리밍부, 및평면상 상기 제2 기판의 상기 제2 방향 일측 단부에 위치하고 상기 제1 방향을 따라 연장되며 각각 상기 제1 및 제2 상부 비슬리밍부와 연결된 제3 상부 비슬리밍부를 포함하는 표시 장치.
- 제6 항에 있어서,상기 상부 비슬리밍부는 평면상 상기 제2 기판의 상기 제1 방향 타측 단부 및 상기 제2 방향 타측에 위치하고 상기 제2 방향을 따라 연장된 제4 상부 비슬리밍부,평면상 상기 제2 기판의 상기 제1 방향 일측 단부 및 상기 제2 방향 타측에 위치하고 상기 제2 방향을 따라 연장된 제5 상부 비슬리밍부, 및평면상 상기 제2 기판의 상기 제2 방향 타측 단부에 위치하고 상기 제1 방향을 따라 연장되며 각각 상기 제4 및 제5 상부 비슬리밍부와 연결된 제6 상부 비슬리밍부를 더 포함하는 표시 장치.
- 제7 항에 있어서,평면상 상기 제1 상부 비슬리밍부는 상기 제4 상부 비슬리밍부와 상기 제2 방향을 따라 이격되고,평면상 상기 제2 상부 비슬리밍부는 상기 제5 상부 비슬리밍부와 상기 제2 방향을 따라 이격된 표시 장치.
- 제8 항에 있어서,상기 제2 기판은 상기 제1 기판과 두께 방향에서 중첩하는 중첩부, 및상기 제1 기판보다 상기 제2 방향 타측으로 돌출된 돌출부를 포함하는 표시 장치.
- 제9 항에 있어서,상기 제4 상부 비슬리밍부는 상기 중첩부 및 상기 돌출부 각각에 위치하고,상기 제5 상부 비슬리밍부는 상기 중첩부 및 상기 돌출부 각각에 위치하는 표시 장치.
- 제10 항에 있어서,상기 제2 기판의 상기 돌출부의 일면에 부착된 연성 필름, 및상기 연성 필름 상의 구동 칩을 더 포함하는 표시 장치.
- 제8 항에 있어서,상기 제2 기판은 평면상 상기 제1 상부 비슬리밍부와 상기 제4 상부 비슬리밍부를 연결하는 제2 상부 슬리밍부, 및평면상 상기 제2 상부 비슬리밍부와 상기 제5 상부 비슬리밍부를 연결하는 제3 상부 비슬리밍부를 더 포함하는 표시 장치.
- 제12 항에 있어서,상기 제2 상부 슬리밍부의 두께는 상기 상부 슬리밍부의 두께와 상기 제1 상부 비슬리밍부의 두께 사이이고,상기 제3 상부 슬리밍부의 두께는 상기 상부 슬리밍부의 두께와 상기 제2 상부 비슬리밍부의 두께 사이인 표시 장치.
- 제3 항에 있어서,상기 제1 기판은 상기 하부 슬리밍부의 상기 제1 방향 타측에 위치한 제2 하부 슬리밍부, 및 상기 제1 방향 일측에 위치한 제3 하부 슬리밍부를 포함하고,상기 제2 하부 슬리밍부 및 상기 제3 하부 슬리밍부의 두께는 각각 상기 하부 슬리밍부의 두께와 상기 제1 하부 비슬리밍부의 두께 사이인 표시 장치.
- 제2 항에 있어서,상기 제1 기판은 인바(Invar) 합금을 포함하고,상기 제2 기판은 유리, 또는 석영을 포함하는 표시 장치.
- 제15 항에 있어서,상기 상부 슬리밍부의 두께는 상기 하부 슬리밍부의 두께보다 크고,상기 상부 비슬리밍부의 두께는 상기 하부 비슬리밍부의 두께보다 큰 표시 장치.
- 제1 항에 있어서,상기 발광 소자층은 상기 제2 기판의 일면 상의 제1 전극,상기 제1 전극 상의 제2 전극, 및상기 제1 전극과 상기 제2 전극 사이에 위치한 유기 발광층을 포함하고, 상기 제2 전극은 반사 전극을 포함하고,상기 제1 전극은 투명 도전 물질을 포함하는 표시 장치.
- 제1 방향을 따라 연장된 폴딩 영역 및 상기 폴딩 영역의 주변에 위치한 비폴딩 영역이 정의된 표시 장치로서,제1 기판;상기 제1 기판과 대향하고 일면 및 상기 일면에 대향하는 타면을 갖는 제2 기판; 및상기 제2 기판의 일면 상에 배치된 발광 소자층을 포함하고,상기 제1 기판은 하부 슬리밍부, 및 평면상 상기 하부 슬리밍부를 둘러싸는 하부 비슬리밍부를 포함하고,상기 제2 기판은 상부 슬리밍부, 및 평면상 상기 상부 슬리밍부를 둘러싸는 상부 비슬리밍부를 포함하며,상기 제2 기판의 두께와 상기 제1 기판의 두께는 상이한 표시 장치.
- 제18 항에 있어서,상기 제2 기판의 두께는 상기 제1 기판의 두께보다 큰 표시 장치.
- 제19 항에 있어서,평면상 상기 하부 슬리밍부는 제1 방향을 따라 연장되고,상기 하부 비슬리밍부는 상기 하부 슬리밍부의 상기 제1 방향과 교차하는 제2 방향 일측에 위치한 제1 하부 비슬리밍부, 및 상기 제2 방향 타측에 위치한 제2 하부 비슬리밍부를 포함하고,상기 하부 비슬리밍부는 상기 하부 슬리밍부의 상기 제1 방향 타측에 위치한 제3 하부 비슬리밍부, 및상기 제1 방향 일측에 위치한 제4 하부 비슬리밍부를 포함하는 표시 장치.
- 제20 항에 있어서,상기 상부 비슬리밍부는 평면상 상기 제2 기판의 테두리에 위치하고,상기 상부 비슬리밍부는 평면상 상기 제2 기판의 상기 제1 방향 타측 단부 및 상기 제2 방향 일측에 위치하고 상기 제2 방향을 따라 연장된 제1 상부 비슬리밍부,평면상 상기 제2 기판의 상기 제1 방향 일측 단부 및 상기 제2 방향 일측에 위치하고 상기 제2 방향을 따라 연장된 제2 상부 비슬리밍부, 및평면상 상기 제2 기판의 상기 제2 방향 일측 단부에 위치하고 상기 제1 방향을 따라 연장되며 각각 상기 제1 및 제2 상부 비슬리밍부와 연결된 제3 상부 비슬리밍부를 포함하고,상기 상부 비슬리밍부는 평면상 상기 제2 기판의 상기 제1 방향 타측 단부 및 상기 제2 방향 타측에 위치하고 상기 제2 방향을 따라 연장된 제4 상부 비슬리밍부,평면상 상기 제2 기판의 상기 제1 방향 일측 단부 및 상기 제2 방향 타측에 위치하고 상기 제2 방향을 따라 연장된 제5 상부 비슬리밍부, 및평면상 상기 제2 기판의 상기 제2 방향 타측 단부에 위치하고 상기 제1 방향을 따라 연장되며 각각 상기 제4 및 제5 상부 비슬리밍부와 연결된 제6 상부 비슬리밍부를 포함하는 표시 장치.
- 제21 항에 있어서,상기 폴딩 영역은 상기 하부 슬리밍부, 상기 제1 하부 슬리밍부, 상기 제2 하부 슬리밍부, 및 상기 상부 슬리밍부를 포함하는 표시 장치.
- 제22 항에 있어서,상기 폴딩 영역에서, 상기 제2 기판의 타면이 바라보는 방향으로 벤딩되는 표시 장치.
- 제1 면 및 상기 제1 면의 반대면인 제2 면이 정의된 제1 기판, 상기 제1 기판과 대향하고 제3 면 및 상기 제3 면의 반대면인 제4 면이 정의된 제2 기판, 및 상기 제2 기판의 제3 면 상에 배치된 발광 소자층을 준비하는 단계;상기 제1 기판을 식각하는 단계; 및상기 제2 기판을 식각하는 단계를 포함하고,상기 제2 기판의 식각 면적은 상기 제1 기판의 식각 면적보다 큰 표시 장치의 제조 방법.
- 제24 항에 있어서,상기 제1 기판을 식각하는 단계는 상기 제1 기판의 제1 면 중 일부를 마스킹하는 단계,상기 제1 기판 및 상기 제2 기판의 측면에 실링 부재 도포하는 단계, 및상기 제1 기판의 상기 제1 면 중 노출된 부분을 식각하는 단계를 포함하는 표시 장치의 제조 방법.
- 제25 항에 있어서,상기 제2 기판을 식각하는 단계는 식각된 상기 제1 기판의 제1 면을 마스킹하는 단계,상기 제2 기판의 제4 면 중 일부를 마스킹하는 단계, 및상기 제2 기판의 제4 면 중 노출된 부분을 식각하는 단계를 포함하는 표시 장치의 제조 방법.
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KR102158617B1 (ko) * | 2019-08-06 | 2020-09-22 | 주식회사 토비스 | 곡면형 표시 장치의 제조 방법 |
KR20210100332A (ko) * | 2020-02-06 | 2021-08-17 | 주식회사 토비스 | 부분 곡면 또는 접는형 표시 장치 및 그 제조 방법 |
-
2021
- 2021-09-17 KR KR1020210125126A patent/KR20230041465A/ko not_active Application Discontinuation
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2022
- 2022-09-16 WO PCT/KR2022/013842 patent/WO2023043246A1/ko active Application Filing
- 2022-09-16 AU AU2022346524A patent/AU2022346524A1/en active Pending
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
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KR101610692B1 (ko) * | 2015-03-18 | 2016-04-08 | 이피네트시스템즈 주식회사 | 곡면형 디스플레이의 제조방법 |
KR102116799B1 (ko) * | 2018-12-11 | 2020-06-02 | (주)코텍 | 액정패널 및 액정패널용 식각방법 |
KR102125046B1 (ko) * | 2018-12-18 | 2020-06-19 | 주식회사 토비스 | 곡면형 디스플레이 모듈 및 그의 제조방법 |
KR102158617B1 (ko) * | 2019-08-06 | 2020-09-22 | 주식회사 토비스 | 곡면형 표시 장치의 제조 방법 |
KR20210100332A (ko) * | 2020-02-06 | 2021-08-17 | 주식회사 토비스 | 부분 곡면 또는 접는형 표시 장치 및 그 제조 방법 |
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KR20230041465A (ko) | 2023-03-24 |
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