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1. 发明专利

JP2007079093A Light source device, display device, terminal device, light source unit, and driving method for light source device 有权
标题翻译：光源设备，显示设备，终端设备，光源单元和用于光源设备的驱动方法
公开(公告)号：JP2007079093A
公开(公告)日：2007-03-29
申请号：JP2005266460
申请日：2005-09-14
申请人： Nec Corp , Nec Lcd Technologies Ltd , Nec液晶テクノロジー株式会社 , 日本電気株式会社
发明人： UEHARA SHINICHI , SAITO GORO
IPC分类号： G02F1/13357 , F21V8/00 , F21Y101/02 , G02F1/1334 , G02F1/1347 , G09F9/00 , G09G3/20 , G09G3/34 , G09G3/36
CPC分类号： G02F1/133555 , G02B6/0016 , G02B6/002 , G02B6/0038 , G02B6/005 , G02B6/0053 , G02B6/0068 , G02B6/0076 , G02F2001/133626
摘要： PROBLEM TO BE SOLVED: To provide a light source device whose irradiation angle range can be switched, the light source device being capable of suppressing change in tint during irradiation angle switching; a display device which is mounted with the light source device and can switch a view angle range; a terminal device mounted with the display device; a light source unit incorporated in the light source device; and a driving method for the light source device. SOLUTION: The display device 2 has white LEDs 51 and bluish white LEDs 52 arranged alternately on the side of a light incidence surface 3a of a light guide plate 3. Further, a transparent/scatter switching element 122 for switching between a state wherein incident light is scattered and a state wherein the incident light is transmitted as it is without being scattered is arranged on the light projection surface side of the light guide plate 3. For narrow-view-angle display, only the white LEDs 51 are made to illuminate and the transparent/scatter switching element 122 is placed in the transparent state. For wide-view-angle display, both the white LEDs 51 and bluish white LEDs 52 are made to illuminate and the transparent/scatter switching element 122 is placed in the scatter state. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供可以切换照射角度范围的光源装置，该光源装置能够抑制照射角度切换期间的色调变化; 显示装置，其安装有光源装置并可切换视角范围; 安装有显示装置的终端装置; 并入光源装置中的光源单元; 以及光源装置的驱动方法。
解决方案：显示装置2具有白色LED51和蓝色白色LED52，其交替布置在导光板3的光入射表面3a侧。另外，透明/散射开关元件122用于在状态其中入射光被散射并且其中入射光原样透射的状态而不被散射的状态布置在导光板3的光投射表面侧上。对于窄视角显示，仅形成白色LED 51 以将透明/散射开关元件122置于透明状态。对于宽视角显示，白色LED51和蓝色白色LED52都被点亮，透明/分散开关元件122处于分散状态。版权所有（C）2007，JPO＆INPIT

2. 发明专利

JP2005228700A Lighting system and display device equipped with it 有权
标题翻译：照明系统和显示设备
公开(公告)号：JP2005228700A
公开(公告)日：2005-08-25
申请号：JP2004038571
申请日：2004-02-16
申请人： Nec Corp , 日本電気株式会社
发明人： SAITO GORO , IMAI MASAO
IPC分类号： G02F1/13357 , F21V8/00 , F21Y103/00 , G02F1/1335
CPC分类号： G02B6/0016 , G02B6/0038
摘要： PROBLEM TO BE SOLVED: To provide an inexpensive lighting system wherein the distribution of emitted light is uniform, the angular distribution of the emitted light is narrow, and light entering from the outside of the surface of a uniforming member can be used for illumination. SOLUTION: Light emitted from a light source 4 enters into the light distribution part 2 of a light guide plate 1. A part of the light is emitted from the light guide plate 1 as it is, and a majority of remaining light is reflected toward a prism part 3. The light which has entered into the prism part 3 from the light distribution part 2 and the light which has directly entered into the prism part 3 from the light source 4 are refracted and reflected in the prism part 3 in a region away from the light source where the light distribution part 2 is not disposed, and are emitted from the light emitting surface side of the light guide plate 1 in the direction perpendicular to the light emitting surface and in the direction centering into a direction getting away from the light source 4. COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：为了提供一种廉价的照明系统，其中发射光的分布是均匀的，发射光的角度分布窄，并且从均匀构件的表面的外部进入的光可以用于照明。解决方案：从光源4发射的光入射到导光板1的光分布部分2.一部分光从导光板1原样射出，剩余的大部分光是从棱镜部分3反射的光从配光部分2进入到棱镜部分3的光和从光源4直接进入棱镜部分3的光被折射并反射在棱镜部分3中远离配置有光分布部2的光源的区域，从导光板1的发光面侧沿着与发光面垂直的方向和朝向取向方向的方向远离光源4.版权所有（C）2005，JPO＆NCIPI

3. 发明专利

JP2005221706A Light source device, projector provided therewith, illuminating device, and liquid crystal display device 审中-公开
标题翻译：光源装置，其提供的投影仪，照明装置和液晶显示装置
公开(公告)号：JP2005221706A
公开(公告)日：2005-08-18
申请号：JP2004028887
申请日：2004-02-05
申请人： Nec Corp , 日本電気株式会社
发明人： SAITO GORO , OKUMURA FUJIO
IPC分类号： G02F1/13357 , F21S2/00 , F21V13/00 , F21Y101/02 , G02F1/1335 , G03B21/14
CPC分类号： G02F1/133621 , G02F1/133605 , G02F2001/133622 , G03B21/20 , H04N9/3152
摘要： PROBLEM TO BE SOLVED: To provide a light source device that has high light utilization efficiency and a narrow light emission angle, is simple and inexpensive, and can be miniaturized.
SOLUTION: A light emitting device 11 emits light in the ±y-axis direction and ±z-axis direction around the x-axis direction on the basis of its light distribution characteristics. Light emitted in the x-axis direction from the light emitting device 11 is reflected parallel to the yz-plane on a device reflecting face 12, so that most part of the light is reflected in the y-axis direction on a device reflecting face 14 whereas the remainder is directly emitted in the y-axis direction. On the other hand, light emitted in the ±y-axis direction and ±z-axis direction from the light emitting device 11 is light emitted in parallel to the yz plane, so that most of the light is reflected in the y-axis direction on the device reflecting face 14 whereas the remainder is directly emitted in the y-axis direction. Thus, the light emitted from a light emitting device is effectively used, and high light use efficiency is ensured.
COPYRIGHT: (C)2005,JPO&NCIPI
摘要翻译：要解决的问题：提供一种光源利用效率高，发光角度窄的光源装置，简单且便宜，能够小型化。解决方案：发光器件11基于其光分布特性，沿x轴方向在±y轴方向和±z轴方向上发光。从发光器件11沿x轴方向发射的光在器件反射面12上平行于yz平面反射，使得大部分光在装置反射面14上沿y轴方向反射而其余部分在y轴方向上直接发射。另一方面，从发光器件11沿±y轴方向和±z轴方向发射的光是平行于yz平面发射的光，使得大部分光在y轴方向上反射在装置反射面14上，而其余部分在y轴方向上直接发射。因此，有效地利用从发光器件发射的光，并且确保了高的光使用效率。版权所有（C）2005，JPO＆NCIPI

4. 发明专利

JP2004134322A Light source device and linear light source device using it, surface light source device and liquid crystal display device 审中-公开
公开(公告)号：JP2004134322A
公开(公告)日：2004-04-30
申请号：JP2002300294
申请日：2002-10-15
申请人： Nec Corp , 日本電気株式会社
发明人： YAGI TOSHIE , MIMURA HIROJI , SAITO GORO , SUMIYOSHI KEN
IPC分类号： G02B6/00 , F21V5/04 , F21V8/00 , F21Y101/02 , G02F1/13357
摘要： PROBLEM TO BE SOLVED: To provide a light source device which is small-sized and has a high directivity, a linear light source device and a surface light source device which are thin-type and have high directivity, a surface light source device which supplies light to, for example, a projector and a liquid crystal display and which is thin-type and power-saving type, and furthermore, a liquid crystal display device which is thin-type and has high perceptivity. SOLUTION: A cup part 1423 installed on a substrate 1422 is made as a reflective guide part, and an LED tip 1425 is installed at the bottom face of a hole. The cup part 1423 is filled by a mold resin 1428, and a light focusing part and the reflective guide part are integrally formed. COPYRIGHT: (C)2004,JPO

5. 发明专利

JP2003270445A Light guide plate, liquid crystal display device, and method for manufacturing the same 审中-公开
标题翻译：光导板，液晶显示装置及其制造方法
公开(公告)号：JP2003270445A
公开(公告)日：2003-09-25
申请号：JP2002070964
申请日：2002-03-14
申请人： Nec Corp , 日本電気株式会社
发明人： MIMURA HIROJI , SUMIYOSHI KEN , SAITO GORO , MATSUSHIMA HITOSHI , YAGI TOSHIE
IPC分类号： G02B6/00 , F21V8/00 , G02F1/13357
摘要： PROBLEM TO BE SOLVED: To provide a light guide plate which can reduce illumination unevenness in a surface while maintaining projection luminance to a specified projection surface and to provide a liquid crystal display device which reduces illuminance unevenness in a display surface while maintaining projection luminance to a display device as a display device whose light guide plate mentioned above serves as an observer-side transparent substrate of the liquid crystal display device and a method for manufacturing the same. SOLUTION: The light guide plate 100 is provided with a light guide layer 1 made of a flat plate type transparent member having a specified refractive index n1 and a high refractive index layer 11, made of a transparent member having a refractive index nH higher than the refractive index n1 of the light guide layer 1 and also having a plurality of groove parts or uneven parts 60 formed on a surface 54 different from a surface 53 facing the light guide layer 1, on at least one plane 50 of the light guide layer 1, the refractive index difference Δn=(nH-n1) between the refractive index nH and the refractive index n1 of the light guide layer being set to satisfy 0 COPYRIGHT: (C)2003,JPO
摘要翻译：解决的问题：提供一种导光板，其能够降低表面的照明不均匀性，同时保持对于特定投影面的投影亮度，并提供一种降低显示表面的照度不均匀性同时保持投影的液晶显示装置作为上述导光板的显示装置的显示装置的亮度作为液晶显示装置的观察者侧透明基板及其制造方法。解决方案：导光板100设置有由具有指定折射率n1的平板型透明构件和高折射率层11制成的导光层1，该透明构件由折射率为nH的透明构件高于导光层1的折射率n1，并且在光的至少一个平面50上还具有形成在与面向导光层1的表面53不同的表面54上的多个凹槽部分或不平坦部分60 引导层1，导光层的折射率nH与折射率n1之间的折射率差Δn=（nH-n1）被设定为满足0 <Δn≤0.103。版权所有（C）2003，JPO

6. 发明专利

JP2001109005A LIQUID CRYSTAL DISPLAY DEVICE AND ITS PRODUCTION 失效
公开(公告)号：JP2001109005A
公开(公告)日：2001-04-20
申请号：JP29101099
申请日：1999-10-13
申请人： NEC CORP
发明人： SAITO GORO , UEHARA SHINICHI , SUMIYOSHI KEN
IPC分类号： G02F1/1339 , G02F1/1337
摘要： PROBLEM TO BE SOLVED: To provide a strong uniform alignment controlling property and aligning property even on the side faces of a columnar or wall-like spacer and to provide a liquid crystal display device having high contrast and stable alignment for a long time without alignment defects. SOLUTION: The liquid crystal display device has a liquid crystal material held between a pair of substrates 1 having electrodes, and also the device has a columnar or wall-like spacer 3 on at least one of the pair of substrates. The spacer itself has uniaxial aligning property or it has an effect to uniaxially align the surrounding liquid crystal material.

7. 发明专利

JPH0611694A LIQUID CRYSTAL OPTICAL ELEMENT AND ITS PRODUCTION 失效
公开(公告)号：JPH0611694A
公开(公告)日：1994-01-21
申请号：JP19140392
申请日：1992-06-26
申请人： NEC CORP
发明人： GOTO TOMOHISA , SAITO GORO , NAKADA DAISAKU , MURAI HIDEYA
IPC分类号： G02F1/1333
摘要： PURPOSE:To increase the light scattering intensity of a polymer-dispersion liq. crystal element to the theoretical maximum and to provide the element capable of easily realizing a reverse mode. CONSTITUTION:A soln. consisting of a photosetting high molecular compd. precursor 4 and a liq. crystal material 3 is held by two substrates 1, an electric field or a magnetic field is impressed to orient the material 3 in the specified manner, the soln. is irradiated with light, and the precursor is cured to form a dimmer layer. Even if the material 3 is extracted from the dimmer layer and another liq. crystal material is injected, the material is oriented in the same way when an electric field is not impressed. Consequently, the precursor is cured by using a liq. crystal material having negative permittivity anisotropy, then a liq. crystal material having positive permittivity anisotropy is injected, and an element having a high scattering intensity is obtained. When the precursor is cured by using a liq. crystal material having positive permittivity anisotropy and a liq. crystal material having negative permittivity anisotropy is injected, a reverse-mode element is obtained.

8. 发明专利

JPH0611686A METHOD FOR DRIVING POLYMER-LIQUID CRYSTAL COMPOSITE ELEMENT 失效
公开(公告)号：JPH0611686A
公开(公告)日：1994-01-21
申请号：JP19140192
申请日：1992-06-26
申请人： NEC CORP
发明人： MURAI HIDEYA , GOTO TOMOHISA , SAITO GORO , NAKADA DAISAKU
IPC分类号： G02F1/133 , G02F1/1333 , G09G3/18
摘要： PURPOSE:To provide a method for driving a polymer-liquid crystal composite element capable of freely controlling color tones by applying the voltage of the frequency capable of independently controlling the different liquid crystal materials on a composite, thereby independently driving respective liquid crystal materials. CONSTITUTION:The liquid crystal-polymer composite material contains plural liquid crystals 11, 12 containing at least one kind of two-frequency driving liquid crystals in which dielectric constant anisotropy of the liquid crystal is positive/negative value corresponding according to the frequency. By impressing a cross frequency (a frequency by which dielectric constant anisotropy becomes zero) of the two-frequency driving liquid crystal on the liquid crystal-polymer composite material, the other liquid crystal material alone is independently driven without applying force to the two-frequency driving liquid crystal. Color tone is controlled by dispersing dyes of different colors, such as dichroic dye, in the different liquid crystal materials.

9. 发明专利

JP2007249052A Light control film, illuminator, and display device 审中-公开
标题翻译：光控制膜，照明器和显示装置
公开(公告)号：JP2007249052A
公开(公告)日：2007-09-27
申请号：JP2006075388
申请日：2006-03-17
申请人： Nec Corp , 日本電気株式会社
发明人： SAITO GORO , IMAI MASAO
IPC分类号： G02B5/00 , G02F1/1335 , G02F1/13357 , G02F1/1347 , G09F9/00
CPC分类号： B32B27/36 , B32B3/10 , B32B5/142 , B32B25/08 , B32B25/20 , B32B27/08 , B32B27/20 , B32B27/32 , B32B2307/412 , B32B2307/418 , B32B2457/20 , G02F1/133606 , G02F2001/133607 , H01J2211/442 , Y10T428/24942 , Y10T428/31504
摘要： PROBLEM TO BE SOLVED: To provide a light control film which has a transparent layer and a light absorbing layer arranged alternately, the light control film being capable of controlling the emission angle of light from a light source relatively strictly and being improved in light use efficiency, an illuminator using the same, and further a display device. SOLUTION: The light control film 1 which uses reflection by a refractive-index interface to have high light use efficiency is obtained by constituting so that: a transparent layer 3 is formed of a high-refractive-index region 3A and a low-refractive-index region 3B; and a light reflecting layer 7 is formed on a light incident surface of at least a light absorbing layer between the light absorbing layer and low-refractive-index region 3B. In addition, the illuminator 9 which incorporates the control film 1 and can switch lighting angles, and the display device which can switch viewing angles, are obtained. COPYRIGHT: (C)2007,JPO&INPIT
摘要翻译：要解决的问题：为了提供一种具有交替布置的透明层和光吸收层的光控制膜，该光控制膜能够相对严格地控制来自光源的光的发射角度并得到改善光利用效率，使用其的照明器，以及显示装置。解决方案：通过构成使通过折射率界面反射而具有高光利用效率的光控制膜1通过以下方式获得：透明层3由高折射率区域3A和低折射率区域3B; 并且在光吸收层和低折射率区域3B之间的至少一个光吸收层的光入射表面上形成光反射层7。此外，获得了包含控制膜1并且可以切换照明角度的照明器9以及可以切换视角的显示装置。版权所有（C）2007，JPO＆INPIT

10. 发明专利

JP2003167130A LIGHT SOURCE AND LIQUID CRYSTAL DISPLAY USING THE LIGHT SOURCE 审中-公开
公开(公告)号：JP2003167130A
公开(公告)日：2003-06-13
申请号：JP2001365327
申请日：2001-11-29
申请人： NEC CORP
发明人： SAITO GORO , YAGI TOSHIE , MIMURA HIROJI , SUMIYOSHI KEN
IPC分类号： G02B6/00 , F21V8/00 , F21Y101/02 , G02F1/13357
摘要： PROBLEM TO BE SOLVED: To provide a light source having a simple structure, saving a space, reducing the angle distribution of exiting light with high efficiency, and improving the use efficiency of light, and to provide a liquid crystal display using the light source. SOLUTION: The light source has reflecting faces 91 in both sides of an entrance face 92 and has two interfaces 97, 98 of refractive indices from the entrance face 92 to an exit face. On the first interface 97 of refractive indices in the entrance face side, the refractive index in the entrance face side is higher than that in the exiting face side. On the second interface 98 of refractive indices, the refractive index in the exiting face side is higher than that in the entrance face side. COPYRIGHT: (C)2003,JPO

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