Patents by Inventor Ju-Hwa Ha
Ju-Hwa Ha 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).
-
Publication number: 20200026082Abstract: An augmented reality providing apparatus is provided. The augmented reality providing apparatus includes a lens including a first lens portion including a first reflective member, and a second lens portion including a second reflective member, and a display device on one side of the lens for displaying first and second images, wherein the first reflective member reflects the first image at a first angle, and the second reflective member reflects the second image at a second angle that is different from the first angle.Type: ApplicationFiled: June 3, 2019Publication date: January 23, 2020Inventors: Jeong Woo PARK, Jae Joong KWON, Ju Hwa HA, Hyun Jin CHO, Su Bin JUNG
-
Publication number: 20200026084Abstract: An optical device is provided. The optical device includes: a lens including first and second reflective members; and a flexible display device including a first display area disposed on a first side surface of the lens and a second display area disposed on a second side surface of the lens, wherein the first reflective member is configured to reflect a first image displayed on the first display area to a first surface of the lens, and the second reflective member is configured to reflect a second image displayed on the second display area to the first surface of the lens.Type: ApplicationFiled: July 17, 2019Publication date: January 23, 2020Inventors: Jae Joong Kwon, Hyun Jin Cho, Ju Hwa Ha, Jeong Woo Park, Su Bin Jung
-
Patent number: 10338418Abstract: A light emission module includes: a light guide including emission sides disposed facing each other, a first and second side connecting the emission sides, a third side connecting the first and second side; a light source unit including a first and second light source corresponding to the first and third side respectively, and a light source substrate supporting the first and second light source and including a first and second portion supporting the first and second light source respectively, the second portion inclined at a first angle with respect to the first portion, the second light source emits a light incident on the third side comprising a first and second orientation angle edge light, the former inclined at a second angle and refracted to propagate in a path adjacent to the second side, and then refracted adjacent to the second side, the first angle smaller than the third angle.Type: GrantFiled: July 14, 2017Date of Patent: July 2, 2019Assignee: Samsung Display Co., Ltd.Inventors: Kyu-Hun Shim, Jae Sul An, Ju Hwa Ha
-
Patent number: 10295859Abstract: Disclosed herein is a liquid crystal display device having a thin thickness and a reduced size of a bezel. According to an exemplary embodiment, the liquid crystal display device includes: a liquid crystal display panel including a display area and a non-display area enclosing the display area; a light guide plate disposed under the liquid crystal display panel and having a polygonal plane shape including a first side, a second side, a third side, and a fourth side; and a light source adjacent to the first side of the light guide plate, wherein at least one of the second side, the third side, and the fourth side of the light guide plate overlaps the display area.Type: GrantFiled: August 7, 2015Date of Patent: May 21, 2019Assignee: Samsung Display Co., Ltd.Inventors: Eui Jeong Kang, Seok Hyun Nam, Ju Hwa Ha, Sang Ho Hwang
-
Patent number: 10268074Abstract: Disclosed herein are a backlight assembly and a liquid crystal display device including the same, which is capable of producing more uniform luminance. The liquid crystal display device includes: a backlight assembly, and a liquid crystal display panel positioned above the backlight assembly. The backlight assembly includes: reflecting sheets having a first surface roughness and a second surface roughness that are different from each other; and light source disposed adjacent to the reflecting sheets.Type: GrantFiled: November 3, 2015Date of Patent: April 23, 2019Assignee: Samsung Display Co., Ltd.Inventor: Ju Hwa Ha
-
Publication number: 20180275417Abstract: A display device includes a display unit that includes a plurality of pixels; a first lens array unit that includes a plurality of first lenses; and a second lens array unit disposed between the first lens array unit and the display unit and that includes a plurality of second lenses. Each of the first lenses overlaps two or more of the pixels, and a pitch of the second lenses is less than a pitch of the first lenses.Type: ApplicationFiled: October 24, 2017Publication date: September 27, 2018Inventors: Jae Joong Kwon, Joo Woan Cho, Ju Hwa Ha
-
Publication number: 20180039108Abstract: A light emission module includes: a light guide including emission sides disposed facing each other, a first and second side connecting the emission sides, a third side connecting the first and second side; a light source unit including a first and second light source corresponding to the first and third side respectively, and a light source substrate supporting the first and second light source and including a first and second portion supporting the first and second light source respectively, the second portion inclined at a first angle with respect to the first portion, the second light source emits a light incident on the third side comprising a first and second orientation angle edge light, the former inclined at a second angle and refracted to propagate in a path adjacent to the second side, and then refracted adjacent to the second side, the first angle smaller than the third angle.Type: ApplicationFiled: July 14, 2017Publication date: February 8, 2018Inventors: Kyu-Hun SHIM, Jae Sul AN, Ju Hwa HA
-
Patent number: 9568657Abstract: A light guide plate for a backlight. The light guide plate includes: a light source unit for generating light; a light guide plate proximate to the light source unit and including an upper surface and a lower surface; and a light emission pattern configured to diffuse a portion of the light directed toward an image display panel, and a first straight pattern configured to channel the light along a direction substantially parallel to a direction of propagation of the light generated by the light source unit, both the light emission pattern and the first straight pattern being disposed on one of the upper surface and the lower surface of the light guide plate, in which the first straight pattern has peaks and valleys formed in alternating and repeating manner in a direction substantially perpendicular to a direction of propagation of the light generated by the light source unit.Type: GrantFiled: March 24, 2014Date of Patent: February 14, 2017Assignee: Samsung Display Co., Ltd.Inventors: Min-Young Song, Seong-Yong Hwang, Joong-Hyun Kim, Sang-Won Lee, Jin-Sung Choi, Ju-Hwa Ha, Jin Seo, Yong-Kyu Kang
-
Publication number: 20160223864Abstract: Disclosed herein are a backlight assembly and a liquid crystal display device including the same, which is capable of producing more uniform luminance. The liquid crystal display device includes: a backlight assembly, and a liquid crystal display panel positioned above the backlight assembly. The backlight assembly includes: reflecting sheets having a first surface roughness and a second surface roughness that are different from each other; and light source disposed adjacent to the reflecting sheets.Type: ApplicationFiled: November 3, 2015Publication date: August 4, 2016Inventor: Ju Hwa HA
-
Publication number: 20160223862Abstract: Disclosed herein is a liquid crystal display device having a thin thickness and a reduced size of a bezel. According to an exemplary embodiment, the liquid crystal display device includes: a liquid crystal display panel including a display area and a non-display area enclosing the display area; a light guide plate disposed under the liquid crystal display panel and having a polygonal plane shape including a first side, a second side, a third side, and a fourth side; and a light source adjacent to the first side of the light guide plate, wherein at least one of the second side, the third side, and the fourth side of the light guide plate overlaps the display area.Type: ApplicationFiled: August 7, 2015Publication date: August 4, 2016Inventors: Eui Jeong KANG, Seok Hyun NAM, Ju Hwa HA, Sang Ho HWANG
-
Patent number: 9116386Abstract: A lens includes an upper flat surface having a first outer diameter, a bottom surface having a second outer diameter and a third inner diameter, an external curved surface which connects the upper flat surface and the bottom surface, and an inner curved surface which protrudes toward the upper flat surface from the bottom surface at the third inner diameter.Type: GrantFiled: October 23, 2012Date of Patent: August 25, 2015Assignee: SAMSUNG DISPLAY CO., LTD.Inventors: Ju-Hwa Ha, Joong-Hyun Kim, Jin Seo, Ju-Youn Son, Dong-Min Yeo, Sang-Heon Ye, Young-Keun Lee, Ji-Won Lee
-
Patent number: 8979343Abstract: A backlight assembly including a container having a light exiting boundary, and a light source part. The container includes a first light source supporting part supporting first and second light sources, and a reflector extending from the first light source supporting part. The reflector reflects the light from the first and second light sources to guide the light to the light exiting boundary. The first light source is disposed under the light exiting boundary and generates the light. The second light source is spaced apart from the first light source in a first direction by a first distance. The first direction is substantially parallel with the light exiting boundary. The second light source is spaced apart from the light exiting boundary in a second direction by a first depth. The second direction is substantially perpendicular to the light exiting boundary.Type: GrantFiled: September 5, 2012Date of Patent: March 17, 2015Assignee: Samsung Display Co., Ltd.Inventors: Sang-Woo Ha, Ju-Hwa Ha
-
Patent number: 8888356Abstract: A backlight assembly that is adapted for use with an image displaying flat panel includes a light guide plate assembly and one or more light sources disposed under the light guide plate assembly. An upper portion of the light guide plate assembly is overlapped by a display area of the flat panel while a lower portion is disposed under the upper portion, and includes light guiding material for redirecting sourced light as well as reflectors for also redirecting light sourced from small, light sourcing areas underneath the upper portion for redistribution into the larger area of light guiding material provided in the upper portion of the light guide plate assembly. The upper portion also has one or more light reflectors. In one embodiment, opposed ones of light sources are angled so they don't shine light directly into one another.Type: GrantFiled: May 24, 2012Date of Patent: November 18, 2014Assignee: Samsung Display Co., Ltd.Inventors: Young-Ran Son, Cheol-Yong Noh, Ju-Hwa Ha
-
Publication number: 20140204612Abstract: A light guide plate for a backlight. The light guide plate includes: a light source unit for generating light; a light guide plate proximate to the light source unit and including an upper surface and a lower surface; and a light emission pattern configured to diffuse a portion of the light directed toward an image display panel, and a first straight pattern configured to channel the light along a direction substantially parallel to a direction of propagation of the light generated by the light source unit, both the light emission pattern and the first straight pattern being disposed on one of the upper surface and the lower surface of the light guide plate, in which the first straight pattern has peaks and valleys formed in alternating and repeating manner in a direction substantially perpendicular to a direction of propagation of the light generated by the light source unit.Type: ApplicationFiled: March 24, 2014Publication date: July 24, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: MIN-YOUNG SONG, SEONG-YONG HWANG, JOONG-HYUN KIM, SANG-WON LEE, JIN-SUNG CHOI, JU-HWA HA, JIN SEO, YONG-KYU KANG
-
Patent number: 8678636Abstract: A light guide plate for a backlight. The light guide plate includes: a light source unit for generating light; a light guide plate proximate to the light source unit and including an upper surface and a lower surface; and a light emission pattern configured to diffuse a portion of the light directed toward an image display panel, and a first straight pattern configured to channel the light along a direction substantially parallel to a direction of propagation of the light generated by the light source unit, both the light emission pattern and the first straight pattern being disposed on one of the upper surface and the lower surface of the light guide plate, in which the first straight pattern has peaks and valleys formed in alternating and repeating manner in a direction substantially perpendicular to a direction of propagation of the light generated by the light source unit.Type: GrantFiled: November 1, 2011Date of Patent: March 25, 2014Assignee: Samsung Display Co., Ltd.Inventors: Min-Young Song, Seong-Yong Hwang, Joong-Hyun Kim, Sang-Won Lee, Jin-Sung Choi, Ju-Hwa Ha, Jin Seo, Yong-Kyu Kang
-
Publication number: 20140055849Abstract: A light diffusion plate includes a body including a first surface through which incident light enters, and a second surface through which light exits and facing the first surface, a light scattering member disposed in the body, and an ultraviolet absorption member disposed in the body. The second surface has a convex pattern. The convex pattern has ridges and valleys arranged in a plurality of columns. The ridges and valleys are sequentially arranged with each other.Type: ApplicationFiled: January 11, 2013Publication date: February 27, 2014Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Ju-Youn SON, Jin SEO, Ju-Hwa HA
-
Patent number: 8545087Abstract: In a light-emitting assembly and a display apparatus having the light-emitting assembly, the light-emitting assembly includes a light guide plate, a first light-emitting module and a second light-emitting module. The light guide plate includes a first surface, a second surface facing the first surface and including a light incident portion and a light exiting portion, and a third surface connecting the first surface with the second surface and inclined toward the first surface. The first light-emitting module is on the light incident portion of the second surface and emits a first light to the light incident portion. The second light-emitting module faces the third surface and emits a second light having a wavelength different from the first light, to the third surface.Type: GrantFiled: September 23, 2011Date of Patent: October 1, 2013Assignee: Samsung Display Co., Ltd.Inventors: Dong-Kwon Kim, Ju-Hwa Ha, Kwang-Hoon Lee, Jeong-Min Seo, Won-Seok Kim
-
Publication number: 20130250616Abstract: A backlight assembly including a container having a light exiting boundary, and a light source part. The container includes a first light source supporting part supporting first and second light sources, and a reflector extending from the first light source supporting part. The reflector reflects the light from the first and second light sources to guide the light to the light exiting boundary. The first light source is disposed under the light exiting boundary and generates the light. The second light source is spaced apart from the first light source in a first direction by a first distance. The first direction is substantially parallel with the light exiting boundary. The second light source is spaced apart from the light exiting boundary in a second direction by a first depth. The second direction is substantially perpendicular to the light exiting boundary.Type: ApplicationFiled: September 5, 2012Publication date: September 26, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventors: Sang-Woo HA, Ju-Hwa HA
-
Patent number: 8517564Abstract: A light source assembly includes first light sources emitting first light in a first wavelength range, second light sources emitting second light in a second wavelength range which is at least partially different from the first wavelength range, and an optical member on which light emitted from the first light sources and the second light sources is incident. A distance between adjacent first light sources, and a distance between adjacent second light sources is defined as an average pitch. The average pitch of the second light sources arranged in a specific direction, is larger than the average pitch of the first light sources arranged in the specific direction. The optical member has a reflectance with respect to the second light, which is larger than a reflectance with respect to the first light.Type: GrantFiled: April 19, 2011Date of Patent: August 27, 2013Assignee: Samsung Display Co., Ltd.Inventors: Joong-Hyun Kim, Ju-Hwa Ha, Kang-Woo Lee
-
Patent number: 8379165Abstract: An optical plate includes a planar base and a plurality of rounded prisms formed on the planar base. The rounded prisms improve a uniformity of the light passing through the planar base and then irradiate the light having the improved uniformity. A concave peak formed in each of the plurality of rounded prisms of the optical plate scatters the light provided into a rear face of the optical plate so that dark lines and bright lines are not generated on the optical plate. As a result, the optical plate has improved light efficiency.Type: GrantFiled: May 22, 2006Date of Patent: February 19, 2013Assignee: Samsung Display Co., Ltd.Inventors: Jung-Wook Paek, Jin-Soo Kim, Byung-Yun Joo, Ju-Hwa Ha, Jin-Sung Choi, Min-Young Song