公开(公告)号：US20240117955A1

公开(公告)日：2024-04-11

申请号：US18517560

申请日：2023-11-22

Applicant: Japan Display Inc.

Inventor： Kojiro IKEDA ,  Takeo KOITO ,  Tae KUROKAWA ,  Keiji TAKIZAWA

IPC: F21V14/00 ,  F21V8/00 ,  G02F1/29

CPC classification number: F21V14/003 ,  G02B6/005 ,  G02F1/29

Abstract: A lighting device includes a light emitting module and an optical element including first and second liquid crystal cells. Each of the first and second liquid crystal cells includes first and second transparent electrodes extending in a first direction and third and fourth transparent electrodes extending in a second direction. The light emitting module includes a light source, a light guide plate including an end surface into which light emitted from the light source is incident and a first surface from which the light incident into the end surface is emitted, and a prism sheet disposed opposite to the first surface. The second substrate of the first liquid crystal cell and the first substrate of the second liquid crystal cell are adjacent to each other. The first surface includes a plurality of first grooves extending in a third direction intersecting the first direction and the second direction.

公开(公告)号：US20240392934A1

公开(公告)日：2024-11-28

申请号：US18796776

申请日：2024-08-07

Applicant: Japan Display Inc.

Inventor： Kojiro IKEDA ,  Takeo KOITO ,  Keiji TAKIZAWA

IPC: F21K9/65 ,  F21V14/00 ,  F21Y105/18 ,  F21Y113/13 ,  F21Y115/10

Abstract: A lighting device includes a light source including at least two types of light emitting elements with different color temperatures, an optical element including a plurality of liquid crystal cells and configured to control a distribution of light emitted from the light source, and a control unit configured to control the light source. The control unit controls the optical element to change from a first light distribution state to a second light distribution state different from the first light distribution state. The control unit controls the light source so that a color temperature of light emitted in a direction perpendicular to a surface of the optical element is the same in the first light distribution state and the second light distribution state.

公开(公告)号：US20180004050A1

公开(公告)日：2018-01-04

申请号：US15703306

申请日：2017-09-13

Applicant: Japan Display Inc.

Inventor： Toshiharu MATSUSHIMA ,  Keiji TAKIZAWA ,  Toshinori UEHARA

IPC: G02F1/1343 ,  G02F1/1335

CPC classification number: G02F1/134363 ,  G02F1/133514 ,  G02F2001/134345

Abstract: According to an aspect, a liquid crystal display device includes: a first substrate; a second substrate; a liquid crystal layer between the first and second substrates; pixels each including sub-pixels corresponding to different color areas; a first electrode in each sub-pixel; and a second electrode facing the first electrode. The first electrode includes an electrode base portion extending in a first direction; and a plurality of comb tooth portions extending in a second direction from the electrode base portion. A slit pitch of a sub-pixel in one color area and a slit pitch of a sub-pixel in the other color area of at least two color areas out of different color areas are different in size, each slit pitch corresponding to a gap between the comb tooth portions adjacent to each other.

公开(公告)号：US20180136730A1

公开(公告)日：2018-05-17

申请号：US15798582

申请日：2017-10-31

Applicant: Japan Display Inc.

Inventor： Shuji HAYASHI ,  Keiji TAKIZAWA

IPC: G06F3/01 ,  G02B27/22 ,  G02B5/12 ,  G02F1/1333 ,  G06F3/042 ,  G06F3/16 ,  H04R1/02

Abstract: According to one embodiment, a display device includes a display which emits display light, a retroreflective element which retroreflects incident light, an optical element including a lower surface opposing the display and the retroreflective element and an upper surface on an opposite side to the lower surface, which reflects part of the display light toward the retroreflective element and transmits reflection light retroreflected by the retroreflective element and a first blower mechanism which blows air to a side of the upper surface.

公开(公告)号：US20150378222A1

公开(公告)日：2015-12-31

申请号：US14754185

申请日：2015-06-29

Applicant: Japan Display Inc.

Inventor： Toshiharu MATSUSHIMA ,  Keiji TAKIZAWA ,  Toshinori UEHARA

IPC: G02F1/1343 ,  G02F1/1335

CPC classification number: G02F1/134363 ,  G02F1/133514 ,  G02F2001/134345

Abstract: According to an aspect, a liquid crystal display device includes: a first substrate; a second substrate; a liquid crystal layer between the first and second substrates; pixels each including sub-pixels corresponding to different color areas; a first electrode in each sub-pixel; and a second electrode facing the first electrode. The first electrode includes an electrode base portion extending in a first direction; and a plurality of comb tooth portions extending in a second direction from the electrode base portion. A slit pitch of a sub-pixel in one color area and a slit pitch of a sub-pixel in the other color area of at least two color areas out of different color areas are different in size, each slit pitch corresponding to a gap between the comb tooth portions adjacent to each other.

Abstract translation: 根据一方面，液晶显示装置包括：第一基板; 第二基板; 第一和第二基板之间的液晶层; 每个像素包括对应于不同颜色区域的子像素; 每个子像素中的第一电极; 以及面向第一电极的第二电极。 第一电极包括沿第一方向延伸的电极基部; 以及从电极基部沿第二方向延伸的多个梳齿部。 一个颜色区域中的子像素的狭缝间距和不同颜色区域中的至少两个颜色区域的另一个颜色区域中的子像素的狭缝间距是不同的，每个狭缝间距对应于 梳齿部彼此相邻。

公开(公告)号：US20150070308A1

公开(公告)日：2015-03-12

申请号：US14478215

申请日：2014-09-05

Applicant: Japan Display Inc.

Inventor： Keiji TAKIZAWA ,  Kazuyuki YAMADA ,  Akio NAKAMURA

IPC: G06F3/044

CPC classification number: G06F3/04886 ,  G06F2203/04809

Abstract: A display device with touch detection function includes: a display panel including a display plane for displaying images and an electrostatic capacitance type touch detection device; a cover member stacked on the display plane of the display panel, the cover member having at least one recess portion and/or projection portion on the side of a touch surface opposite to a plane that faces the display panel; and a controller configured to send a signal upon the touch detection device detects a variance of electrostatic capacitance proximity to the at least one recess portion and/or projection portion.

Abstract translation: 具有触摸检测功能的显示装置包括：显示面板，包括用于显示图像的显示面和静电电容型触摸检测装置; 盖构件，其堆叠在所述显示面板的显示面上，所述盖构件具有与面向所述显示面板的平面相反的触摸面侧的至少一个凹部和/或突出部; 以及控制器，被配置为在所述触摸检测装置上发送信号以检测与所述至少一个凹部和/或突出部分的静电电容接近度的差异。