WO2022146132A1 - 광 경로 제어 부재 및 이를 포함하는 디스플레이 장치 - Google Patents
광 경로 제어 부재 및 이를 포함하는 디스플레이 장치 Download PDFInfo
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- WO2022146132A1 WO2022146132A1 PCT/KR2022/095003 KR2022095003W WO2022146132A1 WO 2022146132 A1 WO2022146132 A1 WO 2022146132A1 KR 2022095003 W KR2022095003 W KR 2022095003W WO 2022146132 A1 WO2022146132 A1 WO 2022146132A1
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- electrode
- disposed
- control member
- path control
- substrate
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Classifications
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- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
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- G02F1/165—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on translational movement of particles in a fluid under the influence of an applied field
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Definitions
- Embodiments relate to a light path control member and a display device including the same.
- the light blocking film blocks the transmission of light from the light source. It is attached to the front of the display panel, which is a display device used for mobile phones, laptops, tablet PCs, vehicle navigation, and vehicle touch, and the angle of incidence of light when the display transmits the screen. Accordingly, it is used for the purpose of expressing clear image quality at the required viewing angle by adjusting the viewing angle of the light.
- the light-shielding film is used for a window of a vehicle or a building to partially block external light to prevent glare or to prevent the inside from being seen from the outside.
- the light blocking film may be a light path control member that controls a movement path of light to block light in a specific direction and transmit light in a specific direction. Accordingly, by controlling the light transmission angle by the light-shielding film, it is possible to control the viewing angle of the user.
- such a light-shielding film is a light-shielding film that can always control the viewing angle regardless of the surrounding environment or the user's environment, and a switchable light-shielding film that allows the user to turn on/off the viewing angle control according to the surrounding environment or the user's environment. can be distinguished.
- Such a switchable light blocking film is filled with a light conversion material including particles that can move according to the application of a voltage and a dispersion liquid dispersing the particles inside the receiving unit of the light conversion unit including the receiving unit and the barrier rib, and by dispersing and aggregating the particles.
- the accommodating part may be implemented by changing into a light transmitting part and a light blocking part.
- An embodiment is to provide an optical path control member having improved driving characteristics.
- An optical path control member includes: a first substrate on which a first direction and a second direction are defined; a first electrode disposed on the first substrate; a second substrate disposed on the first substrate; a second electrode disposed under the second substrate and a light conversion unit disposed between the first electrode and the second electrode, wherein the light conversion unit includes a plurality of barrier ribs, a plurality of accommodating portions, and a base, and The accommodating part extends in the second direction, the first electrode includes a plurality of first pattern electrodes extending in the second direction and spaced apart from each other, and the first pattern electrode overlaps the accommodating part.
- the electrodes disposed on the lower or upper portion of the light conversion unit may be disposed as a plurality of pattern electrodes spaced apart from each other.
- the pattern electrodes overlap only the accommodating part of the light conversion part, or by making the overlapping area of the accommodating part larger than the overlapping area of the barrier rib part, it is possible to minimize charge movement in the direction of the barrier rib through the lower or upper electrode.
- the light path control member may minimize the movement of the light conversion particles moving in the accommodating portion due to the accumulation of charges on the surface of the barrier rib portion from being prevented from moving by the surface charge of the barrier rib portion.
- the optical path control member according to the embodiment can minimize the amount of charge remaining on the surface of the barrier rib part even when the optical path control member is repeatedly driven, so that the driving characteristics and lifespan of the optical path control member can be improved.
- FIG. 1 is a diagram illustrating a perspective view of a light path control member according to an embodiment.
- FIG. 2 and 3 are views illustrating a cross-sectional view taken along area A-A' of FIG. 1 .
- FIG. 4 is a plan view for explaining the arrangement of the receiving part of the light conversion unit of the light path control member according to the embodiment.
- FIG. 5 is a plan view illustrating a first electrode disposed on a first substrate of a light path control member according to an embodiment.
- FIG. 6 is a view showing another cross-sectional view taken along area A-A' of FIG. 1 .
- FIG. 7 is another plan view illustrating a first electrode disposed on a first substrate of a light path control member according to another exemplary embodiment.
- FIG. 8 is a view showing another cross-sectional view taken along region A-A' of FIG. 1 .
- FIGS. 9 and 10 are other plan views illustrating a first electrode disposed on a first substrate of an optical path controlling member according to another exemplary embodiment.
- FIG. 11 is a view illustrating another cross-sectional view taken along a region A-A' of FIG. 1 .
- FIG. 12 is another plan view illustrating a second electrode disposed on a second substrate of a light path control member according to another exemplary embodiment.
- FIG. 13 is a plan view illustrating an arrangement of a receiving unit of a light conversion unit of a light path control member according to another exemplary embodiment.
- FIG. 14 is another plan view illustrating a first electrode disposed on a first substrate of a light path control member according to another exemplary embodiment.
- 15 to 17 are views for explaining a process of forming a barrier rib portion and a receiving portion of the light conversion unit according to the embodiment.
- 19 and 20 are diagrams comparing volatile components of light conversion units according to Examples and Comparative Examples.
- 21 and 22 are views for explaining the appearance of unevenness of the light conversion unit according to the embodiment and the comparative example.
- 23 and 24 are diagrams for explaining driving characteristics of a light conversion unit according to an embodiment and a comparative example.
- 25 is a view for comparing the side lifting phenomenon of the optical path control member according to the embodiment and the comparative example.
- 26 and 27 are cross-sectional views illustrating a display device to which a light path control member according to an exemplary embodiment is applied.
- 28 to 30 are diagrams for explaining an embodiment of a display device to which a light path control member according to an embodiment is applied.
- the terminology used in the embodiments of the present invention is for describing the embodiments and is not intended to limit the present invention.
- the singular form may also include the plural form unless otherwise specified in the phrase, and when it is described as "at least one (or one or more) of A and (and) B, C", it can be combined with A, B, and C. It may include one or more of all possible combinations.
- a component when it is described that a component is 'connected', 'coupled' or 'connected' to another component, the component is not only directly connected, coupled or connected to the other component, but also with the component It may also include a case of 'connected', 'coupled' or 'connected' due to another element between the other elements.
- top (above) or bottom (below) is one as well as when two components are in direct contact with each other. Also includes a case in which another component as described above is formed or disposed between two components.
- FIG. 1 is a diagram illustrating a perspective view of a light path control member according to an embodiment.
- the optical path control member 1000 includes a first substrate 110 , a second substrate 120 , a first electrode 210 , a second electrode 220 , and a light conversion unit ( 300) may be included.
- the first substrate 110 and the second substrate 120 may be rigid or flexible.
- first substrate 110 and the second substrate 120 may be transparent.
- first substrate 110 and the second substrate 120 may include a transparent substrate capable of transmitting light.
- the first substrate 110 and the second substrate 120 may include glass, plastic, or a flexible polymer film.
- the flexible polymer film is polyethylene terephthalate (PET), polycarbonate (Polycabonate, PC), acrylonitrile-butadiene-styrene copolymer (ABS), polymethyl methacrylic Polymethyl Methacrylate (PMMA), Polyethylene Naphthalate (PEN), Polyether Sulfone (PES), Cyclic Olefin Copolymer (COC), TAC (Triacetylcellulose) film, Polyvinyl alcohol ( Polyvinyl alcohol, PVA) film, polyimide (Polyimide, PI) film, may be made of any one of polystyrene (Polystyrene, PS), this is only an example, but is not necessarily limited thereto.
- first substrate 110 and the second substrate 120 may be flexible substrates having a flexible characteristic.
- first substrate 110 and the second substrate 120 may be curved or bent substrates. That is, the optical path control member including the first substrate 110 and the second substrate 120 may also be formed to have flexible, curved, or bent characteristics. For this reason, the light path control member according to the embodiment may be changed into various designs.
- the first electrode 210 and the second electrode 220 may include a transparent conductive material.
- the first electrode 210 and the second electrode 220 may include a conductive material having a light transmittance of about 80% or more.
- the first electrode 210 and the second electrode 220 may include indium tin oxide, indium zinc oxide, copper oxide, or tin oxide. , and may include a metal oxide such as zinc oxide or titanium oxide.
- the first electrode 210 and the second electrode 220 may have a thickness of about 10 nm to about 300 nm.
- the first electrode 210 and the second electrode 220 may include various metals to realize low resistance.
- the first electrode 210 and the second electrode 220 may include chromium (Cr), nickel (Ni), copper (Cu), aluminum (Al), silver (Ag), or molybdenum (Mo). It may include at least one metal among gold (Au), titanium (Ti), and alloys thereof.
- the light conversion unit 300 may be disposed between the first substrate 110 and the second substrate 120 .
- the light conversion unit 300 may be disposed between the first electrode 210 and the second electrode 220 .
- a buffer layer 410 may be disposed between the light conversion unit 300 and the first electrode 210 .
- the buffer layer 410 may improve adhesion between the first electrode 210 made of a different material and the light conversion unit 300 .
- An adhesive layer 420 may be disposed between the light conversion unit 300 and the second electrode 220 .
- the light conversion unit and the second electrode 220 may be adhered through the adhesive layer 420 .
- the buffer layer 410 and the adhesive layer 420 may include a transparent material capable of transmitting light.
- the buffer layer 410 may include a transparent resin material
- the adhesive layer 420 may include an optically clear adhesive (OCA).
- the light path control member may extend in a first direction 1D, a second direction 2D, and a third direction 3D.
- the light path control member extends in a first direction 1D corresponding to the length or width direction of the light path control member and in a direction different from the first direction 1D, and the length or A second direction 2D corresponding to the width direction and a third direction 3D extending in a direction different from the first direction 1D and the second direction 2D and corresponding to the thickness direction of the light path control member ) may be included.
- the first direction 1D may be defined as a longitudinal direction of the light path control member
- the second direction 2D may be defined as a width direction perpendicular to the first direction 1D
- the third direction 3D may be defined as a thickness direction of the light path control member.
- the first direction 1D may be defined as a width direction of the light path control member
- the second direction 2D may be a longitudinal direction of the light path control member perpendicular to the first direction 1D
- the third direction 3D may be defined as a thickness direction of the light path control member.
- the first direction 1D is the longitudinal direction of the light path control member
- the second direction 2D is the width direction of the light path control member
- the third direction 3D will be described in the thickness direction of the light path control member.
- FIG. 2 and 3 are views taken along line A-A' of FIG. 1 .
- the light conversion unit 300 may include a plurality of partition wall portions 310 , a plurality of accommodation portions 320 , and a base portion 350 .
- the light conversion unit 300 includes a plurality of each of the partition wall part 310 and the accommodating part 320 , and the partition wall part 310 and the accommodating part 320 may be alternately disposed with each other. That is, one accommodating part 320 may be disposed between two adjacent partition wall parts 310 , and one partition wall part 310 may be disposed between two adjacent partition wall parts 320 .
- the light path control member according to the embodiment may include several to hundreds of accommodating parts.
- the base part 350 may be disposed under the accommodation part 320 .
- the base part 350 may be disposed between the accommodation part 320 and the buffer layer 410 . Accordingly, the light conversion part 300 may be adhered to the first electrode 210 through the base part 350 and the buffer layer 410 .
- an adhesive layer 420 is disposed between the partition wall part 310 and the second electrode 220 , and the light conversion part 300 and the second electrode 220 are adhered through the adhesive layer 420 .
- the base part 350 performs a mold member or an imprinting process on the resin layer constituting the partition rib part 310 and the accommodating part 320. As a region formed together while doing so, the same material as that of the partition wall portion 310 may be included. That is, the base part 350 and the partition wall part 310 may be integrally formed.
- the barrier rib part 310 may transmit light.
- the light transmittance of the accommodating part 320 may be changed according to the application of a voltage.
- the light conversion material 330 may be disposed in the receiving part 320 .
- the accommodating part 320 may have a variable light transmittance by the light conversion material 330 .
- the light conversion material 330 may include light conversion particles 330b that move according to the application of voltage and a dispersion 330a that disperses the light conversion particles 330b.
- the light conversion material 300 may further include a dispersant for preventing aggregation of the light conversion particles 330a.
- the light conversion particles 330b in the dispersion 330a may be moved according to the input of the voltage.
- the surface of the light conversion particles 330b inside the dispersion liquid 330a is negatively charged, and through the first electrode 210 and the second electrode 220 , When a positive voltage is applied, the light conversion particles 330b move in the direction of the first electrode 210 or the second electrode 220 , so that the receiving part 320 may become a light transmitting part.
- the accommodating part 320 may be a light blocking part.
- first electrode 210 and the second electrode 220 disposed under the light conversion part are disposed to apply a voltage in the direction of the receiving part 320 .
- charges also move in the direction of the barrier rib portion 310 of the light conversion unit through the first electrode 210 and/or the second electrode 220, and the barrier rib portion ( 310), charges may be gradually accumulated on the surface.
- the electric charge on the surface of the barrier rib may affect the movement of the light conversion particles, and thus the driving characteristics of the light path control member may be deteriorated.
- the light path control member attempts to solve the above problems by adjusting the position and size of the first electrode 210 and/or the second electrode 220 .
- the first electrode 210 may include a plurality of first pattern electrodes 211 spaced apart from each other. That is, the first pattern electrodes 211 may be disposed to be spaced apart from each other.
- the second electrode 220 may also include pattern electrodes.
- the second electrode 220 may include a plurality of second pattern electrodes spaced apart from each other.
- first electrode 210 the arrangement and size of the first electrode 210 will be mainly described, and the description of the first electrode 210 may be equally applied to the second electrode 220 .
- first electrode patterns 211 are disposed to be spaced apart from each other, a region where the first electrode 210 is disposed and a region where the first electrode 210 is not disposed are formed under the light conversion unit 300 .
- the first electrode pattern 211 may be disposed to overlap the receiving part 320 and not to overlap the partition wall part 310 .
- FIG. 4 is a plan view of a light conversion unit for explaining the arrangement of the receiving unit of the light conversion unit of the light path control member according to the embodiment
- FIG. 5 is the first substrate 110 of the light path control member according to the embodiment. It is a plan view for explaining the arrangement of the first electrode 210 disposed thereon.
- the receiving part 320 of the light converting part 300 may be disposed to extend in one direction.
- the receiving part 320 may be disposed to be spaced apart in one direction by the partition wall part 310 .
- each accommodating part 320 may be disposed to extend in the second direction 2D, and the plurality of accommodating parts 320 may be disposed to be spaced apart from each other in the first direction 1D.
- the light conversion unit 300 may include an effective area AA and an ineffective area UA.
- the effective area AA may be defined as an area in which the receiving part 320 in which the light conversion material is disposed is disposed, and the ineffective area UA is a sealing part 500 for sealing the light conversion material. ) can be defined as an area where
- the first pattern electrode 211 may be disposed to extend in one direction. Also, the first pattern electrodes 211 may be disposed to be spaced apart from each other in one direction. In detail, each of the first pattern electrodes 211 may be disposed to extend in the second direction 2D, and the plurality of first pattern electrodes 211 may be disposed to be spaced apart from each other in the first direction 1D.
- the first pattern electrode 211 may be disposed to extend in the same direction as the receiving part 320 and may be disposed to be spaced apart from each other in the same direction.
- the first pattern electrode 211 may be disposed in the effective area AA, may be disposed to extend in the same direction as the accommodation part 320 , and may be disposed to be spaced apart from each other in the same direction.
- the first substrate 110 may include a first region in which the first pattern electrode 211 is disposed and a second region in which the first pattern electrode 211 is not disposed.
- the first substrate 110 may include a first region in which the first pattern electrode 211 and the buffer layer 410 are stacked and a second region in which only the buffer layer 410 is disposed. That is, the second region may also be defined as an interval between the first pattern electrodes 211 .
- the buffer layer 410 on the first substrate 110 may be disposed while surrounding the first pattern electrode 211 .
- An area ratio of the first region and an area ratio of the second region with respect to the total area of the first substrate 110 may be different.
- an area ratio of the first region may be smaller than an area ratio of the second region.
- an area ratio of the first region to the total area of the first substrate 110 may be 10% to 45%.
- an area ratio of the first region to the total area of the first substrate 110 may be 15% to 40%.
- an area ratio of the first region to the total area of the first substrate 110 may be 20% to 35%.
- an area ratio of the second region to the total area of the first substrate 110 may be 55% to 90%. In detail, an area ratio of the second region to the total area of the first substrate 110 may be 60% to 85%. In more detail, an area ratio of the second region to the total area of the first substrate 110 may be 65% to 80%.
- the first electrode pattern 211 extends in the same direction as the receiving part 320 and is spaced apart from each other in the same direction as described above, the first electrode pattern 211 is based on the third direction 3D of the light path control member.
- the pattern electrode 211 may be disposed to overlap the receiving part 320 .
- the first pattern electrode 211 overlaps the receiving part 320 in the third direction (3D)
- the first pattern electrode 211 overlaps the partition wall part 310 in the third direction ( 3D) can be non-overlapping.
- the width w1 of the first pattern electrode 211 may be less than or equal to the lower width w2 of the receiving part 320 .
- the first pattern electrode 211 may be formed to have a width smaller than the lower width w2 of the receiving part 320 so as to be disposed inside the receiving part 320 .
- interval s1 between the first pattern electrodes 211 may be greater than the width w3 of the lower portion of the partition wall 310 .
- the first pattern electrode 211 is disposed to overlap only the receiving part 320 and not overlapped with the partition wall part 320 , the first electrode 210 moves in the direction of the partition wall part 320 . to minimize the charge transfer.
- the light path control member according to the embodiment may have improved driving characteristics.
- the first electrode 210 may include a first connection electrode 212 .
- the first connection electrode 212 may be disposed below and/or above the first pattern electrode 211 .
- the first connection electrode 212 may be disposed on the lower and/or upper non-effective area UA of the first pattern electrode 211 . That is, the first connection electrode 212 may be disposed in an ineffective region, ie, a bezel region, not in the light conversion region of the first substrate 100 .
- the first connection electrode 212 may be disposed to be connected to the plurality of first pattern electrodes 211 . Accordingly, the plurality of first pattern electrodes 211 may be electrically connected through the first connection electrode 212 .
- the first electrode 210 includes a first connection area CA1 formed in the first connection electrode 212 , and the first connection electrode 212 is formed in the first connection area CA1 . It may be connected to an external printed circuit board or a flexible printed circuit board.
- a pad portion P for connecting to the printed circuit board is disposed in the first connection area CA1 , and an external printed circuit board is provided through the pad portion P. can be connected with
- an optical path control member according to another exemplary embodiment will be described with reference to FIGS. 6 and 7 .
- descriptions of the same and similar descriptions as those of the light path controlling member according to the above-described embodiment will be omitted, and the same reference numerals will be given to the same components.
- the first pattern electrode 211 may be disposed to overlap both the partition wall part 310 and the accommodation part 320 .
- the first pattern electrode 211 may overlap the partition wall part 310 and the receiving part 320 in the third direction 3D.
- the first pattern electrode 211 may include a first overlapping area OA1 overlapping the partition wall part 310 and a second overlapping area OA2 overlapping the accommodation part 320 .
- a width w4 of the first overlapping area OA1 may be different from a width w5 of the second overlapping area OA2 .
- a width w5 of the second overlapping area OA2 may be smaller than a width w4 of the first overlapping area OA1 .
- the width w4 of the first overlapping area OA1 may be greater than the width w5 of the second overlapping area OA2 .
- the first pattern electrode 211 may have a larger area overlapping the receiving part 320 than the partition wall part 310 .
- the interval s1 between the first pattern electrodes 211 may be smaller than the width w3 of the lower portion of the partition wall 310 .
- an area overlapping the accommodation part 320 may be larger than an area overlapping the partition wall part 310 .
- the first pattern electrode 211 may completely overlap the receiving part 320 and partially overlap the partition wall part 320 .
- the widths of the partition wall part 310 and the accommodating part 320 of the light conversion part 300 may be slightly different from each other during the manufacturing process.
- the first pattern electrode 211 when the first pattern electrode 211 is disposed to have the same width as any one of the accommodating parts 320 , it may not completely overlap with the other accommodating parts 320 , and thus, each The moving speed of the light conversion particle in the receiving unit may vary.
- the light path control member solves the above problems by disposing the first electrode pattern 211 wider than the width of the receiving part 320 so as to partially overlap the partition wall part 310 .
- an optical path control member according to another exemplary embodiment will be described with reference to FIGS. 8 to 10 .
- descriptions of the same and similar descriptions as those of the light path controlling member according to the above-described embodiment will be omitted, and the same reference numerals will be given to the same components.
- the first pattern electrode 211 may be disposed to overlap both the partition wall part 310 and the accommodation part 320 .
- the first pattern electrode 211 may overlap the partition wall part 310 and the receiving part 320 in the third direction 3D.
- the first pattern electrode 211 may include a 1-1 pattern electrode 211a and a 1-2 pattern electrode 211b.
- the 1-1 pattern electrode 211a and the 1-2 pattern electrode 211b may be disposed to extend in different directions.
- the 1-1 pattern electrode 211a is disposed to extend in the same direction as the receiving part 310
- the 1-2 pattern electrode 211b is disposed to extend in a different direction from the receiving part 310 .
- the 1-1 pattern electrode 211a may be disposed to extend in the second direction 2D
- the 1-2 pattern electrode 211b may be disposed to extend in the first direction 1D direction. have.
- the 1-1 pattern electrode 211a is disposed to overlap the accommodating part 320
- the 1-2 pattern electrode 211b is formed between the partition wall part 310 and the accommodating part 320 . All of and can be overlapped and placed.
- the 1-1 pattern electrode 211a and the 1-2 pattern electrode 211b may be disposed while crossing each other to form an intersection area CA.
- the first electrode 210 may be disposed in a mesh shape as a whole by the 1-1 pattern electrode 211a and the 1-2 pattern electrode 211b.
- the light path control member may increase the area of the first electrode 210 disposed under the light conversion unit 300 . Accordingly, the driving characteristics of the optical path control member may be improved by increasing the moving speed or the amount of charges moving in the direction of the accommodating part 320 .
- the 1-1 pattern electrode 211a is disposed to overlap the receiving part to maximize the contact area between the first electrode 210 and the receiving part 320 , and the 1-2 pattern electrode 211b ) minimizes the contact area with the barrier rib 310 so that more charges can be moved in the direction of the receiving portion and only the minimum amount of charge can move in the direction of the barrier rib.
- the driving speed and driving characteristics of the optical path control member may be improved.
- the 1-1 pattern electrode 211a and the 1-2 pattern electrode 211b may be tilted to extend in the second direction 2D.
- the 1-1 pattern electrode 211a and the 1-2 pattern electrode 211b may be tilted and extended at an angle of 10° or less with respect to the second direction 2D. In this case, the 1-1 pattern electrode 211a and the 1-2 pattern electrode 211b may be tilted in different directions to extend.
- the 1-1 pattern electrode 211a and the 1-2 pattern electrode 211b may be disposed while crossing each other to form an intersection area CA.
- the first electrode 210 may be disposed in a mesh shape as a whole by the 1-1 pattern electrode 211a and the 1-2 pattern electrode 211b.
- an optical path control member according to another exemplary embodiment will be described with reference to FIGS. 11 and 12 .
- descriptions of the same and similar descriptions as those of the light path controlling member according to the above-described embodiment will be omitted, and the same reference numerals will be given to the same components.
- the light path control member may include a second pattern electrode 221 .
- the second electrode 220 may include a second pattern electrode 221 in the same manner as the first electrode 210 .
- the second pattern electrode 221 may include a plurality of second pattern electrodes 221 spaced apart from each other. That is, the second pattern electrodes 221 may be disposed to be spaced apart from each other.
- the second electrode patterns 221 are disposed to be spaced apart from each other, a region where the second electrode 220 is disposed and a region where the second electrode 220 is not disposed are formed on the upper portion of the light conversion unit 300 .
- the second electrode pattern 221 may be disposed to overlap the receiving part 320 and not to overlap the partition wall part 310 .
- the second pattern electrode 221 may be disposed to extend in one direction. Also, the second pattern electrodes 221 may be disposed to be spaced apart from each other in one direction. In detail, each of the second pattern electrodes 221 may be disposed to extend in the second direction 2D, and the plurality of second pattern electrodes 221 may be disposed to be spaced apart from each other in the first direction 1D.
- the second pattern electrode 221 may be disposed to extend in the same direction as the receiving part 320 and may be disposed to be spaced apart from each other in the same direction.
- the second pattern electrode 221 may be disposed in the effective area AA, may be disposed to extend in the same direction as the receiving part 320 , and may be disposed to be spaced apart from each other in the same direction.
- the second substrate 120 may include a third region in which the second pattern electrode 221 is disposed and a fourth region in which the second pattern electrode 221 is not disposed.
- the second substrate 120 may include a third region in which the second pattern electrode 221 and the adhesive layer 420 are stacked and a fourth region in which only the adhesive layer 420 is disposed. That is, the fourth region may also be defined as an interval between the second pattern electrodes 221 .
- the adhesive layer 420 of the second substrate 120 is disposed while surrounding the second pattern electrode 221 .
- An area ratio of the third region and an area ratio of the fourth region with respect to the total area of the second substrate 120 may be different.
- an area ratio of the third region may be smaller than an area ratio of the fourth region.
- an area ratio of the third region to the total area of the second substrate 120 may be 10% to 45%.
- an area ratio of the third region to the total area of the second substrate 120 may be 15% to 40%.
- an area ratio of the third region to the total area of the second substrate 120 may be 20% to 35%.
- an area ratio of the fourth region to the total area of the second substrate 120 may be 55% to 90%. In detail, an area ratio of the fourth region to the total area of the second substrate 120 may be 60% to 85%. In more detail, an area ratio of the fourth region to the total area of the second substrate 120 may be 65% to 80%.
- the second electrode pattern 221 extends in the same direction as the receiving part 320 and is spaced apart from each other in the same direction as described above, the second electrode pattern 221 is based on the third direction 3D of the light path control member.
- the pattern electrode 221 may be disposed to overlap the receiving part 320 .
- the second pattern electrode 221 overlaps the accommodating part 320 in the third direction (3D), and the second pattern electrode 221 overlaps the partition wall part 310 in the third direction ( 3D) can be non-overlapping.
- the width w6 of the second pattern electrode 221 may be less than or equal to the width w7 of the upper portion of the accommodating part 320 .
- the second pattern electrode 221 may be formed to have a width smaller than the upper width w7 of the accommodating part 320 so as to be disposed inside the accommodating part 320 .
- interval s2 between the second pattern electrodes 221 may be greater than the width w8 of the upper portion of the partition wall 310 .
- the width w6 of the second pattern electrode 221 is greater than the width w7 of the upper portion of the receiving portion 320 , and the interval s2 of the second pattern electrode 221 is the partition wall portion 310 . ) may be smaller than the width w8 of the upper part.
- the second pattern electrode 221 is disposed to overlap only the receiving part 320 and not overlapped with the partition wall part 320 , the second electrode 220 moves in the direction of the partition wall part 320 . to minimize the charge transfer.
- the light path control member according to the embodiment may have improved driving characteristics.
- the second electrode 220 may include a second connection electrode 222 .
- the second connection electrode 222 may be disposed below and/or above the second pattern electrode 221 .
- the second connection electrode 222 may be disposed on the lower and/or upper non-effective area UA of the second pattern electrode 221 .
- the second connection electrode 222 may be disposed to be connected to the plurality of second pattern electrodes 221 . Accordingly, the plurality of first pattern electrodes 221 may be electrically connected through the second connection electrode 222 .
- the second electrode 220 includes a second connection area CA2 formed in the second connection electrode 222 , and the second connection electrode 222 is formed in the second connection area CA2 . It may be connected to an external printed circuit board or a flexible printed circuit board.
- a pad portion P for connecting to the printed circuit board is disposed in the second connection area CA2 , and an external printed circuit board is provided through the pad portion P. can be connected with
- an optical path control member according to another exemplary embodiment will be described with reference to FIGS. 13 and 14 .
- descriptions of the same and similar descriptions as those of the light path controlling member according to the above-described embodiment will be omitted, and the same reference numerals will be given to the same components.
- the receiving unit 320 and the first electrode 210 of the light conversion unit may be tilted.
- the receiving part 320 may be tilted at a first angle ⁇ 1 having an acute angle with respect to the second direction 2D.
- the first pattern electrode 211 may be tilted at a second angle ⁇ 2 having an acute angle with respect to the second direction 2D.
- the size of the first angle ⁇ 1 and the second angle ⁇ 2 may be the same or similar.
- the accommodating part 320 of the light conversion part arranged to be tilted and the first electrode 210 may be overlapped with each other.
- the second electrode pattern 221 of the second electrode 220 may also be tilted at a third angle.
- the third angle may be the same as or similar to the size of the first angle ⁇ 1 and the second angle ⁇ 2 .
- the accommodating part pattern, the pattern of the first and second electrode patterns and other members It is possible to prevent the moire phenomenon caused by the overlap of
- the moire phenomenon that is caused by overlapping the pattern of the display panel by tilting and disposing the receiving part and the first and second electrode patterns in a predetermined angular range can be reduced. Accordingly, visibility of the display device may be improved.
- the electrodes disposed on the lower or upper portion of the light conversion unit may be disposed as a plurality of pattern electrodes spaced apart from each other.
- the pattern electrodes overlap only the accommodating part of the light conversion part, or by making the overlapping area of the accommodating part larger than the overlapping area of the barrier rib part, it is possible to minimize charge movement in the direction of the barrier rib through the lower or upper electrode.
- the light path control member may minimize the movement of the light conversion particles moving in the accommodating portion due to the accumulation of charges on the surface of the barrier rib portion from being prevented from moving by the surface charge of the barrier rib portion.
- the optical path control member according to the embodiment can minimize the amount of charge remaining on the surface of the barrier rib part even when the optical path control member is repeatedly driven, so that the driving characteristics and lifespan of the optical path control member can be improved.
- 15 to 17 are views for explaining a process of forming the light conversion unit 300 .
- a mold member 10 including an engraved portion E1 and an embossed portion E2 is prepared.
- the mold member 10 may be formed in a shape complementary to the light conversion part.
- the engraved portion E1 may correspond to the shape of the barrier rib portion 310 of the light conversion unit 300
- the embossed portion E2 may include the receiving portion 320 of the light conversion unit 300 . can correspond to the shape of
- the resin composition 20 may be filled in the mold member 10 .
- the resin composition 20 may be disposed while filling the engraved portion E1 of the mold member 10 and covering the upper surface of the embossed portion E2 .
- the resin composition 20 may include a urethane-based resin composition, which will be described in detail below.
- the mold member 10 filled with the resin composition 20 may be adhered to the first substrate 110 .
- the buffer layer 410 after disposing the first electrode 210 on the first substrate 110 described above, and disposing the buffer layer 410 on the first electrode 210 , the buffer layer 410 and the mold member The resin composition disposed on the upper surface of (10) can be adhered.
- the mold member 10 may be released from the resin composition 20. Accordingly, the buffer layer 410 is formed by the resin composition 20, and a partition wall portion ( The light conversion unit 300 including the 310 , the receiving unit 320 , and the base 350 may be disposed.
- the mold member 10 is released from the resin composition 20 , if the mold releasing property of the resin composition is low, the thickness, width, etc. of the partition wall parts 310 are changed during the mold member releasing process. As a result, the shape of the partition walls may not be uniformly formed.
- the resin composition 20 may include a release agent to improve the release properties.
- the mold release property of the resin composition can be improved by the said mold release agent, and the said resin composition can be easily released from the said mold member 10.
- volatile organic compounds are used as a material applied as a release agent added to the resin composition, and accordingly, the release agent may be partially volatilized during operation of the light path control member or by an external environment.
- a solvent for dissolving the release agent may also be volatilized together with the volatilization of the release agent.
- the volume of the light conversion unit 300 may be reduced, and the interface between the light conversion unit 300 and the buffer layer 410 or the light conversion unit 300 and Since the adhesive force is lowered at the interface between the adhesive layers 420 , a phenomenon in which the light conversion unit 300 is lifted from the buffer layer 410 or the adhesive layer 420 may occur.
- the light conversion unit 300 may be adhered to the buffer layer 410 and the adhesive layer 420 .
- the base part 350 may be adhered to the buffer layer 410
- the barrier rib part 310 may be adhered to the adhesive layer 420 .
- a first interface IF1 is formed between the base part 350 and the buffer layer 410
- a second interface IF1 is formed between the partition wall part 310 and the adhesive layer 420 .
- An interface IF2 may be formed.
- heat may be transferred to the light path control member by an external environment in which the swing light path control member is driven. This heat is transferred to the inside of the light path control member, and the release agent of the light conversion unit 300 may be partially volatilized by the heat.
- a lifting phenomenon may occur at the first interface IF1 and the second interface IF2 . That is, a first void region AG1 in which the base part 350 and the buffer layer 410 do not contact may be formed on the first interface IF1 , and the partition wall part 310 may be formed on the second interface IF2 . ) and the second void region AG2 in which the adhesive layer 420 does not contact may be formed.
- the flow of current moving to the light conversion material inside the accommodating part by the first pore region AG1 and the second pore region AG2 is not smooth, so that driving characteristics may be deteriorated, Light may leak to the outside through the void area in the edge portion of the light path control member, so that the light transmittance may be reduced.
- the light path control member controls the characteristics of the release agent in the composition of the resin composition forming the light conversion part to minimize the formation of the first pore region AG1 and the second pore region AG2. do.
- the resin composition forming the light conversion unit 300 may include an oligomer, a monomer, a photopolymerization initiator, and an additive.
- the resin composition may form a light conversion part after the resin composition is cured by light by reacting the polymer-type prepolymer with a polyfunctional monomer serving as a diluent and a photopolymerization initiator.
- the resin composition may include a urethine acrylate polymer.
- the oligomer may include urethane acrylate.
- the monomer may include at least one monomer.
- the monomer may include a single monomer or a plurality of monomers.
- the monomer may include at least one of an acrylate monomer, HEA, BMA, 2-PEA, CTFA, IBOA, EOEOEA, IDA, TPGDA, TCDDMDA, BPA3EODA, and BPA4EODA.
- photoinitiator a known photoinitiator for UV curing may be applied.
- the oligomers, monomers, photoinitiators and additives included in the resin composition may be included in different weight %, respectively.
- the oligomer may be included in an amount of 40 wt% to 606 wt% based on the total weight of the resin composition.
- the monomer may be included in an amount of 30% to 40% by weight based on the total weight of the resin composition.
- the photoinitiator may be included in an amount of 0.1 wt% to 5 wt% based on the total weight of the resin composition.
- the additive may be included in an amount of 0.1 wt% to 5 wt% based on the entire resin composition.
- the additive may be added to form the light conversion part or to improve driving characteristics of the light path control member.
- the additive may include a mold release agent and an antistatic agent.
- the release agent may improve a release characteristic when forming the light conversion unit, so that the light conversion unit may be easily formed.
- the antistatic agent may improve the driving characteristics of the light path control member by controlling the electrical characteristics of the barrier ribs of the light conversion unit.
- the antistatic agent may help improve electrical conductivity by lowering the volume resistance and surface resistance of the partition wall portion. That is, it is possible to implement antistatic charge by moving the electric charge accumulated inside the barrier rib part to the conductive material (moisture) existing outside.
- the release agent since the release agent includes volatile organic compounds, it may volatilize during driving or by an external environment to deteriorate driving characteristics and transmittance of the light path control member.
- the resin composition according to the embodiment may include a high molecular weight mold release agent.
- the resin composition may include a release agent having a molecular weight of 500 g/mol or more. More specifically, the resin composition may include a release agent having a molecular weight of 500 g/mol to 5000 g/mol.
- the molecular weight of the release agent is less than 500 g/mol, the volatilization rate of the release agent increases due to a high temperature while driving the light path controlling member or due to an external environment, so that the porosity of the base portion and the partition wall portion of the light path controlling member is increased, Accordingly, the driving characteristics and transmittance of the light path control member may be deteriorated.
- the porosity between the light conversion unit and the buffer layer or the light conversion unit and the adhesive layer can be 10% or less. have.
- the porosity between the base portion of the light conversion unit and the buffer layer or the upper portion of the barrier rib of the light conversion unit and the adhesive layer may be 50% or less.
- the porosity between the base portion of the light conversion unit and the buffer layer or the upper portion of the barrier rib of the light conversion unit and the adhesive layer may be 40% or less.
- the porosity between the base portion of the light conversion unit and the buffer layer or the upper portion of the barrier rib of the light conversion unit and the adhesive layer may be 30% or less. In more detail, the porosity between the base portion of the light conversion unit and the buffer layer or the upper portion of the barrier rib of the light conversion unit and the adhesive layer may be 20% or less. In more detail, the porosity between the base portion of the light conversion unit and the buffer layer or the upper portion of the barrier rib of the light conversion unit and the adhesive layer may be 10% or less.
- the release agent may include a non-reactive release agent including siloxane.
- the non-reactive release additive may include a Si-containing material such as PDMS.
- the non-reactive release additive may include a material in which a functional group is bonded to polydimethylsiloxane.
- the non-reactive release additive may include a material in which one or more functional groups are bonded to polydimethylsiloxane.
- the non-reactive release additive may include a material in which two or more functional groups identical to or different from each other are bonded to polydimethylsiloxane.
- the non-reactive release additive may be a functional fluid in which a functional group is bonded to polydimethylsiloxane.
- the functional groups bonded to the backbone of polydimethylsiloxane are an alkyl group, an aryl group, an allyl group, an alkenyl group, an amido group, an amino group, a fluoroalkyl group, a halide group, an epoxy group, a carboxy group, a hydroxyl group, an alkoxy group, and a methyl hydrogen group. It may include a variety of materials, such as.
- Si-containing copolymers include siloxane-urethane copolymers, siloxane-polycaponate copolymers, siloxane-polyester copolymers, siloxane-polyimide copolymers, acryloxymethylsiloxane, p-styrylsiloxane (p- Styrylsiloxane), a copolymer of silicone and aldehyde, polysilformal, and the like.
- the resin composition according to the embodiment may include a release agent having a functional group bonded to polydimethylsiloxane and a molecular weight of 500 g/mol or more, preferably, 500 g/mol to 5000 g/mol.
- the light conversion unit 300 formed of the resin composition according to the embodiment may improve the release property by the release agent, so that the shape and size of the barrier rib portion and the receiving unit may be uniform when the light conversion unit is formed.
- the degree of volatilization of the release agent at a high temperature it is possible to improve the reliability and electrical properties of the optical path control member by preventing the light conversion unit from removing a film from the buffer layer at high temperature or from lifting.
- a resin composition was formed by mixing an oligomer containing urethane acrylate, a monomer, a photoinitiator, a release agent, and an antistatic paper.
- the release agent included a material having a molecular weight of 500 g/mol or more.
- the resin composition was filled in the intaglio part of the mold member.
- a first electrode including indium tin oxide (ITO) is disposed on a first substrate including polyethylene terephthalate (PET), a urethane-based buffer layer is disposed on the first electrode, and the mold member and A buffer layer was adhered.
- ITO indium tin oxide
- PET polyethylene terephthalate
- the mold member and the resin composition were released to form a base portion, an embossed partition wall portion, and an intaglio-shaped accommodation portion on the buffer layer to form a light conversion portion.
- a second electrode containing indium tin oxide (ITO) is disposed on a second substrate containing polyethylene terephthalate (PET), and an adhesive containing a transparent optical adhesive is applied between the second electrode and the light conversion unit. After the arrangement, the second substrate was adhered to prepare a light path control member.
- ITO indium tin oxide
- PET polyethylene terephthalate
- the porosity formed between the light conversion unit and the buffer layer at a temperature of 85° C. and driving characteristics of the light path control member were measured.
- the porosity was measured by defining the area where the base portion of the light conversion unit and the buffer layer are spaced apart from each other as the porosity through a microscope in an area of 50 ⁇ m * 50 ⁇ m in the cross section of the light path control member.
- the porosity was measured by defining the area where the base portion of the light conversion unit and the buffer layer are spaced apart from each other as the porosity through a microscope in an area of 50 ⁇ m * 50 ⁇ m in the cross section of the light path control member.
- the porosity of the light path controlling member according to the embodiment is smaller than the porosity of the light path controlling member according to the comparative example.
- the porosity in the corner region, which is the bezel region, and the accommodating part, which is the light conversion region, and the lower region of the partition wall part are all smaller than those of the optical path control member according to the comparative example.
- 19 and 20 are graphs in which volatile components of the release agent are measured for 20 minutes at a temperature of 85° C. through TD-GCMS equipment in the light path control member according to the embodiment.
- the solvent component and other additive components are volatilized together with the release agent and the release agent at a high temperature.
- the light path control member according to the embodiment may prevent volatilization of the release agent even at high temperatures, thereby preventing volatilization of the release agent and other solvents and additive components that are volatilized together with the release agent.
- 21 and 22 are graphs for explaining the speckle characteristics of the light path control member according to Examples and Comparative Examples.
- the step due to the air gap is recognized as a stain.
- the light path control member minimizes the void between the light conversion unit and the buffer layer or the light conversion unit and the adhesive layer, thereby minimizing visible spots due to the step difference due to the air gap.
- 23 and 24 are diagrams for explaining the driving characteristics of the light path control member according to the embodiment and the comparative example.
- the property of movement of electric charges in the direction of the receiving unit is decreased due to the void between the light conversion unit and the buffer layer or the light conversion unit and the adhesive layer at a high temperature, and the resistance is increased to be driven It can be seen that the properties are degraded.
- the light path control member according to the embodiment can minimize the void between the light conversion unit and the buffer layer or the light conversion unit and the adhesive layer even at a high temperature, so that the driving characteristics of the light path control member can be maintained. Able to know.
- 25 is a view for comparing the side lifting phenomenon of the optical path control member according to the embodiment and the comparative example.
- the optical path control member having a width of 35 cm * length 35 cm
- the optical path control member was placed on a flat plate holder, and the degree of lifting between the first substrate and the second substrate was measured.
- the light path control member according to the comparative example is lifted by 1.8 cm or more in the corner region.
- the light path control member according to the embodiment may reduce side lifting of the light path control member to prevent intrusion of external impurities through the light path control member, thereby improving the reliability of the light path controlling member.
- the light path control member 1000 may be disposed on or under the display panel 2000 .
- the display panel 2000 and the light path control member 1000 may be disposed to adhere to each other.
- the display panel 2000 and the light path control member 1000 may be bonded to each other through an adhesive member 1500 .
- the adhesive member 1500 may be transparent.
- the adhesive member 1500 may include an adhesive or an adhesive layer including an optically transparent adhesive material.
- the adhesive member 1500 may include a release film.
- the light path control member and the display panel may be adhered after the release film is removed.
- the display panel 2000 may include a first' substrate 2100 and a second' substrate 2200 .
- the light path control member may be formed under the liquid crystal panel. That is, when the user-viewed side of the liquid crystal panel is defined as the upper portion of the liquid crystal panel, the light path control member may be disposed under the liquid crystal panel.
- a first substrate 2100 including a thin film transistor (TFT) and a pixel electrode and a second substrate 2200 including color filter layers are bonded to each other with a liquid crystal layer interposed therebetween. It can be formed in a structured structure.
- TFT thin film transistor
- a thin film transistor, a color filter, and a black electrolyte are formed on a first substrate 2100, and the second substrate 2200 has a liquid crystal layer interposed therebetween.
- It may be a liquid crystal display panel having a color filter on transistor (COT) structure that is bonded to the liquid crystal display panel. That is, a thin film transistor may be formed on the first substrate 2100 , a protective film may be formed on the thin film transistor, and a color filter layer may be formed on the protective film.
- a pixel electrode in contact with the thin film transistor is formed on the first substrate 2100 .
- the black electrolyte may be omitted, and the common electrode may also serve as the black electrolyte.
- the display device may further include a backlight unit 3000 that provides light from a rear surface of the display panel 2000 .
- the light path control member is disposed below the liquid crystal panel and above the backlight unit 3000 , and the light path control member is disposed between the backlight unit 3000 and the display panel 2000 . can be placed in
- the light path control member may be formed on the organic light emitting diode panel. That is, when the surface viewed by the user of the organic light emitting diode panel is defined as the upper portion of the organic light emitting diode panel, the light path control member may be disposed on the organic light emitting diode panel.
- the display panel 2000 may include a self-luminous device that does not require a separate light source.
- a thin film transistor may be formed on a first substrate 2100 , and an organic light emitting device in contact with the thin film transistor may be formed.
- the organic light emitting device may include an anode, a cathode, and an organic light emitting layer formed between the anode and the cathode.
- a second 'substrate 2200 serving as an encapsulation substrate for encapsulation on the organic light emitting device may be further included.
- the light emitted from the display panel 2000 or the backlight unit 3000 may move from the second substrate 120 of the light path control member to the first substrate 110 .
- a polarizing plate may be further disposed between the light path control member 1000 and the display panel 2000 .
- the polarizing plate may be a linear polarizing plate or an external light reflection preventing polarizing plate.
- the polarizing plate may be a linear polarizing plate.
- the polarizing plate may be an external light reflection preventing polarizing plate.
- an additional functional layer 1300 such as an anti-reflection layer or anti-glare may be further disposed on the light path control member 1000 .
- the functional layer 1300 may be adhered to one surface of the first substrate 110 of the light path control member.
- the functional layer 1300 may be bonded to the first substrate 110 of the light path control member through an adhesive layer.
- a release film for protecting the functional layer may be further disposed on the functional layer 1300 .
- a touch panel may be further disposed between the display panel and the light path control member.
- the embodiment is not limited thereto, and the light control member is positioned at a position where light can be controlled, that is, a lower portion of the display panel or the display panel. It may be disposed in various positions, such as between the second substrate and the first substrate.
- the light conversion unit of the light path control member according to the embodiment is shown in a direction parallel or perpendicular to the outer surface of the second substrate, but the light conversion unit is formed to be inclined at a predetermined angle from the outer surface of the second substrate. may be Accordingly, a moire phenomenon occurring between the display panel and the light path control member may be reduced.
- the light path control member according to the embodiment may be applied to various display devices.
- the accommodating part functions as a light transmitting unit, so that the display device can be driven in the open mode, and power is supplied to the light path control member as shown in FIG. 29 .
- the receiving unit functions as a light blocking unit, so that the display device may be driven in a light blocking mode.
- the user can easily drive the display device in the privacy mode or the normal mode according to the application of power.
- the light emitted from the backlight unit or the self-luminous device may move from the first substrate to the second substrate.
- the light emitted from the backlight unit or the self-luminous device may also move from the second substrate to the first substrate.
- the display device to which the light path control member according to the embodiment is applied may also be applied to the interior of a vehicle.
- the display device including the light path control member may display vehicle information and an image confirming the moving path of the vehicle.
- the display device may be disposed between a driver's seat and a passenger seat of the vehicle.
- the light path control member according to the embodiment may be applied to an instrument panel that displays a vehicle speed, an engine, and a warning signal.
- the light path control member according to the embodiment may be applied to the windshield FG or left and right window glass of a vehicle.
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Abstract
Description
모서리 영역(%) | 수용부 하부 영역(%) | 격벽부 하부 영역(%) | |
실시예 | 30 이하 | 20 이하 | 10 이하 |
비교예 | 80 이상 | 60 초과 | 50 초과 |
Claims (10)
- 제 1 방향 및 제 2 방향이 정의되는 제 1 기판;상기 제 1 기판 상에 배치되는 제 1 전극;상기 제 1 기판 상에 배치되는 제 2 기판;상기 제 2 기판 하에 배치되는 제 2 전극 및상기 제 1 전극 및 상기 제 2 전극 사이에 배치되는 광 변환부를 포함하고,상기 광 변환부는 복수의 격벽부, 복수의 수용부 및 기저부를 포함하고,상기 수용부는 상기 제 2 방향으로 연장하고,상기 제 1 전극은 상기 제 2 방향으로 연장하고 서로 이격하는 복수의 제 1 패턴 전극을 포함하고,상기 제 1 패턴 전극은 상기 수용부와 중첩되는 광 경로 제어 부재.
- 제 1항에 있어서,상기 제 1 패턴 전극의 폭은 상기 수용부 하부의 폭보다 작은 광 경로 제어 부재.
- 제 1항에 있어서,상기 제 1 패턴 전극의 간격은 상기 격벽부 하부의 폭보다 큰 광 경로 제어 부재
- 제 1항에 있어서,상기 제 1 기판은 상기 제 1 패턴 전극이 배치되는 제 1 영역 및 상기 제 1 패턴 전극이 배치되지 않는 제 2 영역을 포함하고,상기 제 1 기판 전체 면적에 대한 상기 제 2 영역의 면적은 55% 내지 90%인 광 경로 제어 부재.
- 제 1항에 있어서,상기 제 1 전극은 상기 제 1 패턴 전극과 연결되는 제 1 연결 전극을 더 포함하고,상기 제 1 연결 전극은 상기 제 1 기판의 비유효 영역 상에 배치되고,상기 제 1 연결 전극은 인쇄회로기판과 연결되는 패드부를 포함하는 광 경로 제어 부재.
- 제 1항에 있어서,상기 제 1 패턴 전극의 폭은 상기 수용부 하부의 폭보다 크고,상기 제 1 패턴 전극은 상기 격벽부와 중첩되는 제 1 중첩 영역 및 상기 수용부와 중첩되는 제 2 중첩 영역을 포함하고,상기 제 2 중첩 영역의 폭은 상기 제 1 중첩 영역의 폭보다 큰 광 경로 제어 부재.
- 제 6항에 있어서,상기 제 1 패턴 전극의 간격은 상기 격벽부 하부의 폭보다 작은 광 경로 제어 부재
- 제 1항에 있어서,상기 제 1 패턴 전극은 서로 다른 방향으로 연장하며 배치되는 제 1-1 패턴 전극 및 제 1-2 패턴 전극을 포함하고,상기 제 1-1 패턴 전극은 상기 수용부와 중첩되며 배치되고,상기 제 1-2 패턴 전극은 상기 격벽부 및 상기 수용부와 중첩되며 배치되는 광 경로 제어 부재.
- 제 8항에 있어서,상기 제 1-1 패턴 전극과 상기 제 1-2 패턴 전극은 메쉬 형상으로 배치되는 광 경로 제어 부재.
- 표시 패널 및 터치 패널 중 적어도 하나의 패널을 포함하는 패널; 및상기 패널 상에 또는 하에 배치되는 제 1 항 내지 제 9항 중 어느 한 항의 광 경로 제어 부재를 포함하는 디스플레이 장치.
Priority Applications (2)
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CN202280009023.1A CN116685889A (zh) | 2021-01-04 | 2022-01-04 | 光路控制构件及包括其的显示装置 |
US18/260,132 US20240061304A1 (en) | 2021-01-04 | 2022-01-04 | Light path control member, and display device comprising same |
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KR10-2021-0000219 | 2021-01-04 | ||
KR1020210000219A KR20220098464A (ko) | 2021-01-04 | 2021-01-04 | 광 경로 제어 부재 및 이를 포함하는 디스플레이 장치 |
KR10-2021-0000225 | 2021-01-04 | ||
KR1020210000225A KR20220098470A (ko) | 2021-01-04 | 2021-01-04 | 광 경로 제어 부재 및 이를 포함하는 디스플레이 장치 |
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KR101996655B1 (ko) * | 2012-12-26 | 2019-07-05 | 엘지디스플레이 주식회사 | 홀로그램 표시 장치 |
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- 2022-01-04 WO PCT/KR2022/095003 patent/WO2022146132A1/ko active Application Filing
- 2022-01-04 US US18/260,132 patent/US20240061304A1/en active Pending
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KR101756506B1 (ko) * | 2014-04-29 | 2017-07-11 | (주)엘지하우시스 | 광 투과율 가변 필름 및 이를 포함한 표시 장치 |
KR20150126515A (ko) * | 2014-05-02 | 2015-11-12 | (주)엘지하우시스 | 광 투과율 가변 필름 및 이를 포함한 표시 장치 |
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