Patents by Inventor Yong Un JUNG
Yong Un JUNG has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20230288750Abstract: A liquid crystal display apparatus includes: a liquid crystal panel; and a viewer-side polarizing plate stacked on a light exit surface of the liquid crystal panel, and the viewer-side polarizing plate includes a patterned layer including a first resin layer and a second resin layer having different indexes of refraction; and a patterned portion including multiple engraved optical patterns and a flat section between adjacent engraved optical patterns of the multiple optical patterns is formed at an interface between the first resin layer and the second resin layer, and the liquid crystal display apparatus satisfies Equation 1 herein and the engraved optical patterns have an aspect ratio of 0.3 or more.Type: ApplicationFiled: March 9, 2023Publication date: September 14, 2023Inventors: Yong Un JUNG, Young Hyun JU, So Yeon GONG, Jin Woo KIM, Da Neung PARK, Young OH, Dong Ho WEE
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Publication number: 20230273477Abstract: A liquid crystal display apparatus includes a liquid crystal panel; a viewer-side polarizing plate stacked on a light exit surface of the liquid crystal panel; and a first optical sheet and a second optical sheet sequentially stacked on a light incidence surface of the liquid crystal panel, and the viewer-side polarizing plate includes a polarizer and a contrast ratio or viewing angle-enhancing layer; the liquid crystal panel has a horizontal direction corresponding to a long side thereof and a vertical direction corresponding to a short side thereof; and the first optical sheet has a plurality of first optical patterns on a light exit surface thereof, an angle of a longitudinal direction of the first optical patterns relative to the vertical direction of the liquid crystal panel being from ?10° to +10°.Type: ApplicationFiled: February 23, 2023Publication date: August 31, 2023Inventors: Yong Un JUNG, So Yeon GONG, Jeong Ho LEE, Hyun Wook KIM, Dong Ho WEE, Young OH, Young Hyun JU
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Patent number: 11604308Abstract: Provided are a polarizing plate and a liquid crystal display device including same, the polarizing plate including a polarization film, a contrast-improving layer, and an anti-reflection film that are sequentially laminated. The minimum reflectance of the anti-reflection film is no greater than 0.45%. The anti-reflection film has a first substrate layer, a high-refraction layer and a low-refraction layer that are laminated in order from the contrast-improving layer. The contrast-improving layer includes a first resin layer and a second resin layer facing the first resin layer. The second resin layer is provided with a pattern part having optical patterns and a flat part between the optical patterns. The pattern part satisfies Equation 1 and the optical patterns have a base angle (?) of 60° to 90°. The slope of the reflectance of the polarization plate in Equation 2 is no greater than 0.3.Type: GrantFiled: September 15, 2021Date of Patent: March 14, 2023Assignee: Samsung SDI Co., Ltd.Inventors: Yong Un Jung, Young Oh, Dong Ho Wee, Young Hyun Ju
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Patent number: 11592702Abstract: Provided are a polarizing plate and an optical display device including same, the polarizing plate comprising a polarizing film and a contrast ratio enhancement layer formed on a light-emitting surface of the polarizing film, wherein the contrast ratio enhancement layer comprises: a first resin layer including a pattern unit having one or more engraved patterns and a flat portion formed between the engraved patterns; and a second resin layer directly formed on the pattern unit, wherein the engraved patterns have a base angle of approximately 75° to approximately 90°, the pattern unit satisfies formula 1, the first resin layer has a refractive index larger than that of the second resin layer, and the first resin layer includes a dye of which the maximum absorption wavelength is approximately 550 nm to approximately 620 nm.Type: GrantFiled: May 14, 2018Date of Patent: February 28, 2023Assignee: Samsung SDI Co., Ltd.Inventors: Jeong Ho Lee, Dae Gyu Lee, Yong Un Jung, Young Oh, Dong Ho Wee, Jang Hyun Cho, Young Hyun Ju
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Publication number: 20220365258Abstract: A polarizing plate and a liquid crystal display including the same are provided. A polarizing plate includes a polarizing film and a contrast-improving optical film sequentially stacked in the stated order. The contrast-improving optical film includes a contrast-improving layer including a first resin layer and a second resin layer facing the first resin layer. The second resin layer includes a patterned portion having optical patterns and a flat section between the optical patterns. The second resin layer satisfies Equation 1, and the polarizing plate has a contrast ratio gain of about 1.00 or more, as represented by Equation 2.Type: ApplicationFiled: July 27, 2022Publication date: November 17, 2022Inventors: Dae Seob SHIM, Young OH, Dong Ho WEE, Jeong Ho LEE, Yong Un JUNG, Jang Hyun CHO, Young Hyun JU
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Patent number: 11493678Abstract: An optical film includes: a protective layer; and a contrast ratio improvement layer including a first resin layer and a second resin layer facing the first resin layer, the second resin layer and the first resin layer being sequentially stacked from a lower surface of the protective layer, wherein the second resin layer has a refractive index greater than that of the first resin layer. The first resin layer has a patterned portion with at least two embossed optical patterns and flat sections immediately adjacent to and between the embossed optical patterns. The patterned section is in at least a portion thereof facing the second resin layer. A polarizing plate including the optical film and a liquid crystal display apparatus including the polarizing plate are also provided.Type: GrantFiled: January 19, 2021Date of Patent: November 8, 2022Assignee: Samsung SDI Co., Ltd.Inventors: Dae Gyu Lee, Yong Un Jung
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Patent number: 11480825Abstract: A polarizer and optical display device comprising the same are disclosed. Specifically, the polarizer comprises: a polarizing film; and a contrast ratio improving film formed on one surface of the polarizing film, wherein the contrast ratio improving film comprises a contrast ratio improving layer consisting of a first protective layer, and first and second resin layers facing each other, and the first resin layer has: pattern parts having two or more optical patterns on one surface thereof that faces the second resin layer and a flat part between the optical pattern and another immediately adjacent optical pattern.Type: GrantFiled: November 30, 2017Date of Patent: October 25, 2022Assignee: Samsung SDI Co., Ltd.Inventors: Dong Ho Wee, Jeong Ho Lee, Yong Un Jung, Young Oh, Young Hyun Ju
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Patent number: 11428855Abstract: A polarizing plate and a liquid crystal display including the same are provided. A polarizing plate includes a polarizing film and a contrast-improving optical film sequentially stacked in the stated order. The contrast-improving optical film includes a contrast-improving layer including a first resin layer and a second resin layer facing the first resin layer. The second resin layer includes a patterned portion having optical patterns and a flat section between the optical patterns. The second resin layer satisfies Equation 1, and the polarizing plate has a contrast ratio gain of about 1.00 or more, as represented by Equation 2.Type: GrantFiled: February 8, 2022Date of Patent: August 30, 2022Assignee: Samsung SDI Co., Ltd.Inventors: Dae Seob Shim, Young Oh, Dong Ho Wee, Jeong Ho Lee, Yong Un Jung, Jang Hyun Cho, Young Hyun Ju
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Publication number: 20220163705Abstract: A polarizing plate and a liquid crystal display including the same are provided. A polarizing plate includes a polarizing film and a contrast-improving optical film sequentially stacked in the stated order. The contrast-improving optical film includes a contrast-improving layer including a first resin layer and a second resin layer facing the first resin layer. The second resin layer includes a patterned portion having optical patterns and a flat section between the optical patterns. The second resin layer satisfies Equation 1, and the polarizing plate has a contrast ratio gain of about 1.00 or more, as represented by Equation 2.Type: ApplicationFiled: February 8, 2022Publication date: May 26, 2022Inventors: Dae Seob SHIM, Young OH, Dong Ho WEE, Jeong Ho LEE, Yong Un JUNG, Jang Hyun CHO, Young Hyun JU
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Patent number: 11307340Abstract: Provided are a polarizing plate and a liquid crystal display device comprising the same, wherein the polarizing plate comprises a polarizer, a contrast ratio improvement film, an adhesive layer, and an antireflection film, which are sequentially laminated therein, the contrast ratio improvement film comprises a first protective layer, and a first resin layer and a second resin layer which are opposite to each other, the first resin layer includes an optical pattern including a pattern portion having a flat portion on one surface opposite to the second resin layer, and the adhesive layer has a haze of about 5% to about 40%.Type: GrantFiled: September 27, 2017Date of Patent: April 19, 2022Assignee: Samsung SDI Co., Ltd.Inventors: Dong Ho Wee, Young Min Kim, Young Oh, Yong Un Jung, Young Hyun Ju
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Patent number: 11249228Abstract: A polarizing plate and a liquid crystal display including the same are provided. A polarizing plate includes a polarizing film and a contrast-improving optical film sequentially stacked in the stated order. The contrast-improving optical film includes a contrast-improving layer including a first resin layer and a second resin layer facing the first resin layer. The second resin layer includes a patterned portion having optical patterns and a flat section between the optical patterns. The second resin layer satisfies Equation 1, and the polarizing plate has a contrast ratio gain of about 1.00 or more, as represented by Equation 2.Type: GrantFiled: January 8, 2018Date of Patent: February 15, 2022Assignee: Samsung SDI Co., Ltd.Inventors: Dae Seob Shim, Young Oh, Dong Ho Wee, Jeong Ho Lee, Yong Un Jung, Jang Hyun Cho, Young Hyun Ju
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Publication number: 20220003912Abstract: Provided are a polarizing plate and a liquid crystal display device including same, the polarizing plate including a polarization film, a contrast-improving layer, and an anti-reflection film that are sequentially laminated. The minimum reflectance of the anti-reflection film is no greater than 0.45%. The anti-reflection film has a first substrate layer, a high-refraction layer and a low-refraction layer that are laminated in order from the contrast-improving layer. The contrast-improving layer includes a first resin layer and a second resin layer facing the first resin layer. The second resin layer is provided with a pattern part having optical patterns and a flat part between the optical patterns. The pattern part satisfies Equation 1 and the optical patterns have a base angle (?) of 60° to 90°. The slope of the reflectance of the polarization plate in Equation 2 is no greater than 0.3.Type: ApplicationFiled: September 15, 2021Publication date: January 6, 2022Inventors: Yong Un JUNG, Young OH, Dong Ho WEE, Young Hyun JU
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Patent number: 11126031Abstract: Provided are a polarizing plate and a liquid crystal display device including same, the polarizing plate including a polarization film, a contrast-improving layer, and an anti-reflection film that are sequentially laminated. The minimum reflectance of the anti-reflection film is no greater than 0.45%. The anti-reflection film has a first substrate layer, a high-refraction layer and a low-refraction layer that are laminated in order from the contrast-improving layer. The contrast-improving layer includes a first resin layer and a second resin layer facing the first resin layer. The second resin layer is provided with a pattern part having optical patterns and a flat part between the optical patterns. The pattern part satisfies Equation 1 and the optical patterns have a base angle (?) of 75° to 90°. The slope of the reflectance of the polarization plate in Equation 2 is no greater than 0.3.Type: GrantFiled: May 14, 2018Date of Patent: September 21, 2021Assignee: Samsung SDI Co., Ltd.Inventors: Yong Un Jung, Young Oh, Dong Ho Wee, Young Hyun Ju
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Patent number: 11067842Abstract: Provided are a contrast ratio improving optical film, a polarizing plate comprising the same, and a liquid crystal display device comprising the same, wherein the contrast ratio improving optical film comprises a contrast ratio improving layer. The contrast ratio improving layer comprises a first resin layer and a second resin layer which faces the first resin layer, wherein the second resin layer comprises a pattern part having optical patterns and a flat part between the optical patterns. The optical patterns have at least one inclined surface with respect to the flat part, and the flat part or the inclined surface has a light absorption layer formed thereon. The contrast ratio improving optical film has a lowest reflectance of 0.5% or less.Type: GrantFiled: November 27, 2017Date of Patent: July 20, 2021Assignee: Samsung SDI Co., Ltd.Inventors: Young Hyun Ju, Dae Seob Shim, Young Oh, Dong Ho Wee, Jeong Ho Lee, Yong Un Jung, Jang Hyun Cho
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Publication number: 20210141134Abstract: An optical film includes: a protective layer; and a contrast ratio improvement layer including a first resin layer and a second resin layer facing the first resin layer, the second resin layer and the first resin layer being sequentially stacked from a lower surface of the protective layer, wherein the second resin layer has a refractive index greater than that of the first resin layer. The first resin layer has a patterned portion with at least two embossed optical patterns and flat sections immediately adjacent to and between the embossed optical patterns. The patterned section is in at least a portion thereof facing the second resin layer. A polarizing plate including the optical film and a liquid crystal display apparatus including the polarizing plate are also provided.Type: ApplicationFiled: January 19, 2021Publication date: May 13, 2021Inventors: Dae Gyu LEE, Yong Un JUNG
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Patent number: 10901130Abstract: An optical film includes: a protective layer; and a contrast ratio improvement layer including a first resin layer and a second resin layer facing the first resin layer, the second resin layer and the first resin layer being sequentially stacked from a lower surface of the protective layer, wherein the second resin layer has a refractive index greater than that of the first resin layer. The first resin layer has a patterned portion with at least two embossed optical patterns and flat sections immediately adjacent to and between the embossed optical patterns. The patterned section is in at least a portion thereof facing the second resin layer. A polarizing plate including the optical film and a liquid crystal display apparatus including the polarizing plate are also provided.Type: GrantFiled: October 9, 2018Date of Patent: January 26, 2021Assignee: Samsung SDI Co., Ltd.Inventors: Dae Gyu Lee, Yong Un Jung
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Patent number: 10824003Abstract: An optical film, a polarizing plate including the same, and a liquid crystal display including the same are provided. The optical film includes a protective layer and a contrast improving layer, wherein the contrast improving layer includes a second resin layer that is stacked from the protective layer, and a first resin layer facing the second resin layer.Type: GrantFiled: November 19, 2018Date of Patent: November 3, 2020Assignee: Samsung SDI Co., Ltd.Inventors: Dae Gyu Lee, Yong Un Jung
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Patent number: 10747045Abstract: An optical film for improving contrast ratio, a polarizing plate including the same, and a liquid crystal display including the polarizing plate are provided. An optical film for improving contrast ratio includes a protective layer and a contrast ratio improving layer on the protective layer, and the contrast ratio improving layer includes a first resin layer and a second resin layer facing the first resin layer, and the second resin layer includes a patterned portion having optical patterns and a flat section between the optical patterns, contains a light absorber, and satisfies Equation 1 as defined herein.Type: GrantFiled: February 13, 2018Date of Patent: August 18, 2020Assignee: Samsung SDI Co., Ltd.Inventors: Young Oh, Jeong Ho Lee, Yong Un Jung, Jang Hyun Cho
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Publication number: 20200209680Abstract: Provided are a polarizing plate and a liquid crystal display device including same, the polarizing plate including a polarization film, a contrast-improving layer, and an anti-reflection film that are sequentially laminated. The minimum reflectance of the anti-reflection film is no greater than 0.45%. The anti-reflection film has a first substrate layer, a high-refraction layer and a low-refraction layer that are laminated in order from the contrast-improving layer. The contrast-improving layer includes a first resin layer and a second resin layer facing the first resin layer. The second resin layer is provided with a pattern part having optical patterns and a flat part between the optical patterns. The pattern part satisfies Equation 1 and the optical patterns have a base angle (?) of 75° to 90°. The slope of the reflectance of the polarization plate in Equation 2 is no greater than 0.3.Type: ApplicationFiled: May 14, 2018Publication date: July 2, 2020Inventors: Yong Un JUNG, Young OH, Dong Ho WEE, Young Hyun JU
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Publication number: 20200159068Abstract: Provided are a polarizing plate and an optical display device including same, the polarizing plate comprising a polarizing film and a contrast ratio enhancement layer formed on a light-emitting surface of the polarizing film, wherein the contrast ratio enhancement layer comprises: a first resin layer including a pattern unit having one or more engraved patterns and a flat portion formed between the engraved patterns; and a second resin layer directly formed on the pattern unit, wherein the engraved patterns have a base angle of approximately 75° to approximately 90°, the pattern unit satisfies formula 1, the first resin layer has a refractive index larger than that of the second resin layer, and the first resin layer includes a dye of which the maximum absorption wavelength is approximately 550 nm to approximately 620 nm.Type: ApplicationFiled: May 14, 2018Publication date: May 21, 2020Inventors: Jeong Ho LEE, Dae Gyu LEE, Yong Un JUNG, Young OH, Dong Ho WEE, Jang Hyun CHO, Young Hyun JU