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公开(公告)号：US11749190B2
公开(公告)日：2023-09-05
申请号：US18045853
申请日：2022-10-12
发明人： Eunjung Lee , Youra Kim , Hyosun Kim , Hyungsuk Hwang
IPC分类号： G09G3/32 , G09G3/3225
CPC分类号： G09G3/3225 , G09G3/32 , G09G2320/0247 , G09G2320/0613 , G09G2320/103 , G09G2330/021 , G09G2360/145 , G09G2360/16
摘要： An electronic device includes a display panel, a data driving circuit, a scan driving circuit, and a signal control circuit that receives input data. The signal control circuit includes a histogram check unit that divides data of one frame among the input data into a plurality of regions based on a gray scale and calculates a distribution of the data based on the plurality of regions, a gray check unit that calculates the number of major grayscales having data of a specific number or more among the input data, an optical waveform analysis unit that generates a signal calculated based on an optical waveform of the plurality of pixels, and a frequency selection unit that selects a driving frequency of the display panel based on the distribution of the data, the number of the major grayscales, and the signal.
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公开(公告)号：US11514833B2
公开(公告)日：2022-11-29
申请号：US17504975
申请日：2021-10-19
发明人： Young-Jun Seo , Hyosun Kim , Yongwoo Yi , Youra Kim
IPC分类号： G09G3/20
摘要： A transparent display device includes a transparent display panel which displays an image, a scan driver which provides a scan signal to the transparent display panel, a data driver which converts image data into a data signal based on an application gamma curve, and which provides the data signal to the transparent display panel, a timing controller which controls the scan driver and the data driver, a luminance value compensator which calculates a perception luminance of the transparent display panel based on a luminance of incident light that is incident on the transparent display panel and a transmittance of the transparent display panel, and a gamma curve adjuster which adjusts the application gamma curve based on a reference gamma value of a reference gamma curve and the perception luminance of the transparent display panel.
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公开(公告)号：US10078172B2
公开(公告)日：2018-09-18
申请号：US15019348
申请日：2016-02-09
发明人： Kang-woo Lee , Youra Kim , Myeong-ju Shin , Seunghwan Chung
CPC分类号： G02B6/0053 , G02B3/0056 , G02B5/021 , G02B5/045 , G02B5/3025 , G02B6/0051 , G02B6/0056
摘要： A display device includes a display panel and a backlight unit which provides light to the display panel. The backlight unit includes a light source which emits the light, a light guide plate which guides the light emitted from the light source toward the display panel, and a prism plate. The prism plate includes a base film disposed on the light guide plate and a plurality of prisms disposed on the base film. Each of the prisms has an isosceles trapezoidal section, two base angles of which are obtuse angles, when viewed from a cross-sectional view in a width direction.
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公开(公告)号：US10558072B2
公开(公告)日：2020-02-11
申请号：US15365013
申请日：2016-11-30
发明人： Youra Kim , Donghoon Kim , Young-min Park
IPC分类号： G02F1/1335 , G02F1/13357
摘要： A display apparatus includes a display panel, a backlight unit which provides a light to the display panel, and a light control member disposed between the display panel and the backlight unit. The light control member includes a plurality of first barrier wall members extending in a first direction and arranged in a second direction crossing the first direction.
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公开(公告)号：US09964686B2
公开(公告)日：2018-05-08
申请号：US15398037
申请日：2017-01-04
发明人： Youra Kim , Donghoon Kim , Junwoo You , Hyun-hwa Song
IPC分类号： G02F1/1335 , F21V8/00 , G02F1/1343 , G02F1/1362 , G02F1/1368
CPC分类号： G02B6/0053 , G02F1/133615 , G02F1/133617 , G02F1/133621 , G02F1/134309 , G02F1/136213 , G02F1/136286 , G02F1/1368 , G02F2001/133607 , G02F2001/133614 , G02F2201/121 , G02F2201/123 , G02F2202/36 , G02F2203/05
摘要： A display apparatus includes a plurality of prism patterns disposed between a display panel and a light guide plate and having a shape of an inverted triangle, each of the plurality of prism patterns including a first pattern including a first side having a shape of an inverted triangle, which faces the display panel, a second side connecting one end of the first side to a vertex of the inverted triangle disposed under the first side, and a third side connecting the other end of the inverted triangle to the vertex and a second pattern having a refractive index less than that of the first pattern and disposed in the first groove that is defined in the second side to extend in a direction crossing the second side.
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公开(公告)号：US09835903B2
公开(公告)日：2017-12-05
申请号：US14722943
申请日：2015-05-27
发明人： Eui Jeong Kang , Youra Kim , Hyun-Jeong Kim
IPC分类号： G02F1/1335
CPC分类号： G02F1/133621 , G02F1/133602 , G02F2001/133622
摘要： A backlight unit that includes a light source driving substrate and first and second light source units connected to the light source driving substrate. The first light source unit includes first and second light sources respectively emitting a first light having a first color and a second light having a second color. The second light source unit may include third and fourth light sources respectively emitting a third light having the first color and a fourth light having the second color. The first light source unit emits a first white color light having a first white color coordinate by mixing the first light and the second light and the second light source unit emits a second white color light having a second white color coordinate by mixing the third light and the fourth light. The first and second white color coordinates belong to different white color coordinate areas.
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