公开(公告)号：US20040041974A1

公开(公告)日：2004-03-04

申请号：US10621505

申请日：2003-07-17

Applicant: FUJITSU LIMITED

Inventor： Toshiaki Yoshihara ,  Tetsuya Makino ,  Keiichi Betsui

IPC: C09K019/02

CPC classification number: C09K19/0225

Abstract: The present invention provides a liquid crystal display device having uniform alignment of monostable ferroelectric liquid crystal, and a manufacturing method of the liquid crystal display device. The temperature range of a cholesteric phase or a chiral nematic phase of the phase sequence of the liquid crystal has a temperature width of not less than 3null C. After heating the liquid crystal to an isotropic phase once, the liquid crystal is cooled to room temperature (25null C.) at a cooling rate of 3, 5, 10null C./minute. An alignment treatment is performed by application of a DC voltage of not lower than 3 V, which is a sufficient voltage to obtain the effects of the alignment treatment, within a temperature range of null3null C. from transition temperature at which the liquid crystal changes from the cholesteric phase to the chiral smectic C phase.

Abstract translation: 本发明提供了具有单稳态铁电液晶的均匀排列的液晶显示装置和液晶显示装置的制造方法。 液晶相序列的胆固醇相或手性向列相的温度范围为3℃以上的温度范围。将液晶加热至各向同性相后，将液晶冷却至室温 温度（25℃），冷却速度为3,5,10℃/分钟。 在液晶的转变温度为±3℃的温度范围内，通过施加不低于3V的DC电压进行取向处理，该电压为充分的电压以获得取向处理的效果。 从胆甾相到手性近晶C相的变化。

公开(公告)号：US20010040433A1

公开(公告)日：2001-11-15

申请号：US09911508

申请日：2001-07-25

Applicant: FUJITSU LIMITED

Inventor： Noriyuki Awaji ,  Shinji Tadaki ,  Keiichi Betsui

IPC: H01J017/49

CPC classification number: H01J11/12 ,  H01J9/02 ,  H01J11/24 ,  H01J11/38 ,  H01J2211/225

Abstract: Local losses of material of transparent electrodes, in a plasma display panel including transparent electrodes, bus electrodes and, a dielectric layer covering these electrodes, are prevented by using a plasma display panel according to the present invention. The plasma display panel is formed on at least one substrate of a pair of substrates provided opposite each other via a discharge space. An element, which is a main element of the bus electrode composition, is included in the composition of the dielectric layer. Since the main element of the bus electrode is included in the dielectric layer, local losses of the transparent electrode can be prevented even through the high temperature baking process of the dielectric layer. A preferred choice as the main element of the bus electrode composition is copper, but other elements are also suitable and will perform acceptably.

Abstract translation: 通过使用根据本发明的等离子体显示面板可以防止在包括透明电极，总线电极和覆盖这些电极的电介质层的等离子体显示面板中的透明电极材料的局部损耗。 等离子体显示面板形成在通过放电空间相对设置的一对基板的至少一个基板上。 作为母线电极组合物的主要元件的元件被包括在电介质层的组成中。 由于总线电极的主要元件包括在电介质层中，所以即使通过电介质层的高温烘烤工艺也能够防止透明电极的局部损耗。 作为母线电极组合物的主要元件的优选选择是铜，但是其它元件也是合适的并且将可接受地执行。

公开(公告)号：US20040008170A1

公开(公告)日：2004-01-15

申请号：US10602851

申请日：2003-06-24

Applicant: FUJITSU LIMITED

Inventor： Tetsuya Makino ,  Toshiaki Yoshihara ,  Keiichi Betsui

IPC: G09G003/36

CPC classification number: G09G3/3651 ,  G09G3/3614 ,  G09G3/3688 ,  G09G2310/061

Abstract: When a write polarity control signal PN is nullLnull, both of an odd-numbered output terminal and even-numbered output terminal apply a reset voltage as negative 0 gradation to the pixel electrode in the first half of the ON period, and apply a positive data voltage to the pixel electrode in the second half of the ON period. When the write polarity control signal PN is nullHnull, both of the odd-numbered output terminal and even-numbered output terminal apply a reset voltage as positive 0 gradation to the pixel electrode in the first half of the ON period, and apply a negative data voltage to the pixel electrode in the second half of the ON period. It is possible to write the data voltage for display to all pixels (the entire screen) always from a fixed state.

Abstract translation: 当写入极性控制信号PN为“L”时，奇数输出端子和偶数输出端子在ON周期的前半部分将复位电压作为负0灰度施加到像素电极，并施加一个 在ON周期的后半段中向像素电极施加正数据电压。 当写极性控制信号PN为“H”时，奇数输出端和偶数输出端都在ON周期的前半部分中将像素电极的复位电压作为正0分级施加， 在ON周期的后半段中，向像素电极施加负数据电压。 可以将固定状态下的数据电压写入所有像素（整个屏幕）。

公开(公告)号：US20030156243A1

公开(公告)日：2003-08-21

申请号：US10345189

申请日：2003-01-16

Applicant: FUJITSU LIMITED

Inventor： Toshiaki Yoshihara ,  Hironori Shiroto ,  Tetsuya Makino ,  Keiichi Betsui

IPC: G02F001/133

CPC classification number: G02F1/141 ,  G09G3/3648 ,  G09G2310/0235

Abstract: A liquid crystal layer is formed by filling a space between alignment films provided on both glass substrates with a ferroelectric liquid crystal material having a spontaneous polarization. This ferroelectric liquid crystal exhibits a monostable state in which the average molecular axis of the liquid crystal molecular director is present in substantially one direction in the absence of an applied voltage. When a voltage of a first polarity is applied, the average molecular axis tilts from the monostable position to one side at an angle corresponding to the magnitude of the applied voltage, while, when a voltage of a second polarity having the opposite characteristic to the first polarity is applied, the average molecular axis tilts from the monostable position to a side opposite to the application of the voltage of the first polarity. A maximum tilt angle in the application of the voltage of the first polarity is not less than 35null, more preferably not less than 450null. With the use of a liquid crystal material having a large spontaneous polarization, a high-speed response is realized even when the applied voltage to the liquid crystal material is low.

Abstract translation: 通过将设置在两个玻璃基板上的取向膜之间的空间与具有自发极化的铁电液晶材料填充来形成液晶层。 该铁电液晶呈现单稳态，其中液晶分子导向器的平均分子轴在没有施加电压的情况下基本上在一个方向上存在。 当施加第一极性的电压时，平均分子轴以与施加电压的大小相对应的角度从单稳态位置倾斜到一侧，而当具有与第一极性相反的特性的第二极性的电压 极性被施加，平均分子轴从单稳态位置倾斜到与施加第一极性的电压相反的一侧。 在施加第一极性的电压时的最大倾斜角度不小于35°，更优选不小于450°。 通过使用自发极化大的液晶材料，即使对液晶材料的施加电压低，也能实现高速响应。

公开(公告)号：US20030043103A1

公开(公告)日：2003-03-06

申请号：US10282679

申请日：2002-10-29

Applicant: FUJITSU LIMITED

Inventor： Toshiaki Yoshihara ,  Shinji Tadaki ,  Tetsuya Makino ,  Hironori Shiroto ,  Yoshinori Kiyota ,  Keiichi Betsui

IPC: G09G003/36

CPC classification number: G09G3/3651 ,  G09G3/3406 ,  G09G2310/0235 ,  G09G2310/0237 ,  G09G2310/0283 ,  G09G2310/063 ,  G09G2310/08

Abstract: In a liquid crystal display device that uses a liquid crystal material having spontaneous polarization and is actively driven by a TFT, a voltage corresponding to image data is applied twice by driving the TFT of each pixel electrode on a line by line basis of a liquid crystal panel, during writing in one frame. During erasure in one frame, voltage application to liquid crystal by batch selection of all the pixel electrodes is performed three times. With this three times of voltage application, it is possible to achieve a black display state in each pixel and make the stored charge amount at the liquid crystal in each pixel substantially zero.

公开(公告)号：US20030231160A1

公开(公告)日：2003-12-18

申请号：US10375750

申请日：2003-02-26

Applicant: FUJITSU LIMITED

Inventor： Toshiaki Yoshihara ,  Tetsuya Makino ,  Keiichi Betsui

IPC: G09G003/36

CPC classification number: G09G3/3648 ,  G09G3/3651 ,  G09G2310/0235 ,  G09G2320/0626 ,  G09G2360/144

Abstract: Color display is performed by adding data of a predetermined level to pixel data of each emission color inputted according to an image to be displayed and synchronizing an input of summed pixel data obtained by the addition with light emission timing of each of emission colors (R, G, B) from a back-light. Switching is performed between color display based on such summed pixel data and color display based on the original pixel data, according to ambient illuminance measured. Moreover, the predetermined level to be added is suitably selected based on ambient illuminace.

Abstract translation: 通过将预定电平的数据与根据要显示的图像输入的每个发射颜色的像素数据相加来执行彩色显示，并且通过添加获得的相加像素数据的输入与发光时序（R， G，B）从背光。 根据测量的环境照度，基于这样的相加像素数据的颜色显示和基于原始像素数据的彩色显示之间的切换。 此外，基于环境照明适当地选择要添加的预定水平。

公开(公告)号：US20030052846A1

公开(公告)日：2003-03-20

申请号：US10047732

申请日：2002-01-15

Applicant: FUJITSU LIMITED

Inventor： Toshiaki Yoshihara ,  Keiichi Betsui ,  Tetsuya Makino

IPC: G09G003/36

CPC classification number: G09G3/3651 ,  G09G3/3406 ,  G09G3/3614 ,  G09G2310/0235 ,  G09G2310/061

Abstract: Ferroelectric liquid crystal having spontaneous polarization is provided between two confronting substrates; pixel electrodes corresponding to liquid crystal cells, TFTs for switching connected to the pixel electrodes and storage capacitors for storing electric charge in the pixel electrodes are provided on the inner face of one of the substrates;; wherein a ratio (CS/CLC) of capacity of storage capacitor (CS) against that of liquid crystal cell (CLC) satisfies 0.2nullCS/CLCnull5. Driving voltage for liquid crystal material is maintained at a low level, and a liquid crystal material with large spontaneous polarization can be employed.

Abstract translation: 具有自发极化的铁电液晶设置在两个相对的基板之间; 对应于液晶单元的像素电极，连接到像素电极的开关用TFT和用于在像素电极中存储电荷的存储电容器设置在一个基板的内表面上; 其中存储电容器（CS）的容量与液晶单元（CLC）的容量之比（CS / CLC）满足0.2≤CCS / CLC <= 5。 液晶材料的驱动电压维持在低水平，可以采用自发极化大的液晶材料。

公开(公告)号：US20030025088A1

公开(公告)日：2003-02-06

申请号：US10238759

申请日：2002-09-11

Applicant: Fujitsu Limited

Inventor： Yoshihisa Oae ,  Tomohiko Abe ,  Soichiro Arai ,  Shigeru Maruyama ,  Hiroshi Yasuda ,  Kenichi Miyazawa ,  Junichi Kai ,  Takamasa Satoh ,  Keiichi Betsui ,  Hideki Nasuno

IPC: H01J037/317

CPC classification number: H01J37/3174 ,  B82Y10/00 ,  B82Y40/00 ,  H01J37/3023 ,  H01J37/3177 ,  H01J2237/0435 ,  H01J2237/30416 ,  H01J2237/31762 ,  H01L2223/54466

Abstract: A charged particle beam exposure method includes the steps of creating dot pattern data indicative of a pattern to be exposed, storing the dot pattern data in a first storage device having a first access speed, transferring the dot pattern data from the first storage device to a second storage device having a second, higher access speed, reading the dot pattern data out from the second storage device, and producing a plurality of charged particle beams in response to the dot pattern data read out from the second storage device by means of a blanking aperture array, wherein the blanking aperture array includes a plurality of apertures each causing turning-on and turning-off of a changed particle beam pertinent to the aperture in response to the dot pattern data.

公开(公告)号：US20030011739A1

公开(公告)日：2003-01-16

申请号：US10027452

申请日：2001-12-20

Applicant: FUJITSU LIMITED

Inventor： Toshiaki Yoshihara ,  Keiichi Betsui ,  Hironori Shiroto

IPC: G02F001/13

CPC classification number: G02F1/141

Abstract: A liquid crystal layer is formed by filing the space between alignment films formed on two glass substrates, respectively, with a ferroelectric liquid crystal having spontaneous polarization. When the maximum charge amount injected to each pixel by the switching of a switching element, the area of each pixel electrode and the magnitude of the spontaneous polarization of the ferroelectric liquid crystal per unit area are denoted as Q, A, and PS, respectively, the relation 2PSnullA>Q is established. A cone angle 2null (null: tilt angle) of the ferroelectric liquid crystal is not smaller than 45null. It is possible to use a liquid crystal material having large spontaneous polarization, and a high-speed response is realized even when a low voltage is applied to the liquid crystal material.

Abstract translation: 通过分别在两个玻璃基板上形成的取向膜之间的空间与具有自发极化的铁电液晶分别形成液晶层。 当通过开关元件的切换注入到每个像素的最大电荷量时，每个像素电极的面积和每单位面积的铁电液晶的自发极化的大小分别表示为Q，A和PS， 建立关系2PS.A> Q。 铁电液晶的锥角2θ（θ：倾斜角）不小于45°。 可以使用具有大自发极化的液晶材料，并且即使当向液晶材料施加低电压时也实现高速响应。

公开(公告)号：US20040041975A1

公开(公告)日：2004-03-04

申请号：US10629307

申请日：2003-07-29

Applicant: FUJITSU LIMITED

Inventor： Toshiaki Yoshihara ,  Hironori Shiroto ,  Shinji Tadaki ,  Tetsuya Makino ,  Yoshinori Kiyota ,  Shigeo Kasahara ,  Keiichi Betsui

IPC: C09K019/02

CPC classification number: G02F1/141 ,  C09K19/0225

Abstract: The present invention provides a manufacturing method of a liquid crystal display device capable of achieving uniform alignment of monostable ferroelectric liquid crystal having spontaneous polarization, and provides the liquid crystal display device. The liquid crystal (monostable ferroelectric liquid crystal having spontaneous polarization) showing a phase sequence, either isotropic liquid phase-cholesteric phase-chiral smectic C phase, isotropic liquid phase-chiral nematic phase-chiral smectic C phase, or isotropic liquid phase-cholesteric phase-smectic A phase-chiral smectic C phase, from a high temperature side to a low temperature side, is sandwiched between two glass substrates having transparent electrodes and alignment films whose pretilt angle is not more than 2null and rubbing directions are parallel. In an alignment treatment which is performed to obtain a monostable state after heating the liquid crystal, an electric field with electric field strength of not less than 2 V/nullm is applied in the vicinity of the transition temperature from a higher temperature phase than chiral smectic C phase to the chiral smectic C phase.

Abstract translation: 本发明提供一种能够实现具有自发极化的单稳态铁电液晶的均匀取向的液晶显示装置的制造方法，并且提供了液晶显示装置。 具有相序的各向同性液相 - 胆甾型相 - 手性近晶C相，各向同性液相手性向列相手性近晶C相或各向同性液相胆固醇相的液晶（具有自发极化的单稳态铁电液晶） - 从高温侧到低温侧的相手性近晶C相被夹在具有透明电极的两个玻璃基板和预倾角不大于2°并且摩擦方向平行的取向膜之间。 在对液晶进行加热后进行取向处理的取向处理中，将电场强度为2V / mm以上的电场施加在比手性近晶相的高温相的转变温度附近 C相到手性近晶C相。