公开(公告)号：US20170365226A1

公开(公告)日：2017-12-21

申请号：US15673664

申请日：2017-08-10

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hajime KIMURA ,  Yasunori YOSHIDA ,  Hideaki SHISHIDO ,  Atsushi UMEZAKI ,  Makoto YANAGISAWA ,  Shunpei YAMAZAKI

IPC: G09G3/36 ,  G09G3/34 ,  G02F1/1335 ,  G09G3/3208 ,  G02F1/1362

CPC classification number: G09G3/36 ,  G02F1/133603 ,  G02F1/1362 ,  G09G3/3208 ,  G09G3/3426 ,  G09G3/3648 ,  G09G2300/046 ,  G09G2320/0238 ,  G09G2320/062 ,  G09G2320/066 ,  G09G2330/021

Abstract: It is an object to provide a display device in which a problem of light leakage from a liquid crystal element in black display is reduced or overcome and the contrast is improved. It is another object to provide a pixel circuit having a function to control a lighting state of a backlight based on each pixel. These objects are achieved by turning off a light-emitting element in display of a black gray scale, and by providing a light-emitting element in each pixel and providing, in a pixel circuit, a function to individually control lighting and non-lighting of the light-emitting element depending on a gray scale to perform display. When a backlight is provided in each pixel, a light-emitting element that is a backlight is turned off when a black gray scale is displayed, whereby reduction in contrast due to light leakage from a liquid crystal element can be prevented.

公开(公告)号：US20160012783A1

公开(公告)日：2016-01-14

申请号：US14863500

申请日：2015-09-24

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Hajime KIMURA ,  Yasunori YOSHIDA ,  Hideaki SHISHIDO ,  Atsushi UMEZAKI ,  Makoto YANAGISAWA ,  Shunpei YAMAZAKI

IPC: G09G3/36

CPC classification number: G09G3/36 ,  G02F1/133603 ,  G02F1/1362 ,  G09G3/3208 ,  G09G3/3426 ,  G09G3/3648 ,  G09G2300/046 ,  G09G2320/0238 ,  G09G2320/062 ,  G09G2320/066 ,  G09G2330/021

Abstract: It is an object to provide a display device in which a problem of light leakage from a liquid crystal element in black display is reduced or overcome and the contrast is improved. It is another object to provide a pixel circuit having a function to control a lighting state of a backlight based on each pixel. These objects are achieved by turning off a light-emitting element in display of a black gray scale, and by providing a light-emitting element in each pixel and providing, in a pixel circuit, a function to individually control lighting and non-lighting of the light-emitting element depending on a gray scale to perform display. When a backlight is provided in each pixel, a light-emitting element that is a backlight is turned off when a black gray scale is displayed, whereby reduction in contrast due to light leakage from a liquid crystal element can be prevented.

Abstract translation: 本发明的目的是提供一种显示装置，其中减少或克服了黑色显示器中的液晶元件的漏光问题，并提高了对比度。 另一个目的是提供一种具有基于每个像素来控制背光的点亮状态的功能的像素电路。 这些目的是通过关闭黑色灰度显示器中的发光元件来实现的，并且通过在每个像素中提供发光元件并在像素电路中提供单独控制照明和非点亮的功能 该发光元件根据灰度来执行显示。 当在每个像素中设置背光时，当显示黑色灰度时，作为背光的发光元件被关闭，由此可以防止由于来自液晶元件的光泄漏造成的对比度的降低。

公开(公告)号：US20150014419A1

公开(公告)日：2015-01-15

申请号：US14500343

申请日：2014-09-29

Applicant: Semiconductor Energy Laboratory Co., Ltd.

Inventor： Shunpei YAMAZAKI ,  Jun KOYAMA ,  Kiyoshi KATO ,  Takaaki KOEN ,  Yuto YAKUBO ,  Makoto YANAGISAWA ,  Hisashi OHTANI ,  Eiji SUGIYAMA ,  Nozomi HORIKOSHI

IPC: G06K19/077

CPC classification number: G06K19/07735 ,  G06K19/07722 ,  G06K19/07794 ,  H01L23/295 ,  H01L23/3157 ,  H01L2924/0002 ,  H01L2924/09701 ,  H01L2924/12044 ,  H01L2924/19041 ,  H01L2924/3011 ,  H01L2924/3025 ,  H01L2924/00

Abstract: A semiconductor device capable of wireless communication, which has high reliability in terms of resistance to external force, in particular, pressing force and can prevent electrostatic discharge in an integrated circuit without preventing reception of an electric wave. The semiconductor device includes an on-chip antenna connected to the integrated circuit and a booster antenna which transmits a signal or power included in a received electric wave to the on-chip antenna without contact. In the semiconductor device, the integrated circuit and the on-chip antenna are interposed between a pair of structure bodies formed by impregnating a fiber body with a resin. One of the structure bodies is provided between the on-chip antenna and the booster antenna. A conductive film having a surface resistance value of approximately 106 to 1014 Ω/cm2 is formed on at least one surface of each structure body.

Abstract translation: 一种能够进行无线通信的半导体装置，其在外力方面具有高的可靠性，特别是按压力，并且能够防止集成电路中的静电放电，而不会妨碍电波的接收。 半导体器件包括连接到集成电路的片上天线和将接收到的电波中包含的信号或功率发送到片上天线而不接触的增强天线。 在半导体器件中，集成电路和片上天线插入通过用树脂浸渍纤维体而形成的一对结构体之间。 其中一个结构体设置在片上天线和增强天线之间。 在每个结构体的至少一个表面上形成表面电阻值为大约106至1014Ω·cm 2 / cm 2的导电膜。