公开(公告)号：US07314303B2

公开(公告)日：2008-01-01

申请号：US10537519

申请日：2003-12-01

申请人： Akimitsu Tsuda

发明人： Akimitsu Tsuda

IPC分类号： F21V8/00

CPC分类号： G02B6/0038 ,  G02B6/0061

摘要： To provide an assistant light source and a front-light emitting light to the light guide plate efficiently. A sectional shape of prism 14a in the center of light stick is isosceles triangle having a tip angle (T°) of 100° and a tilt angle (a1) of 40°. The depth of the prism 14a is D1 μm. A sectional shape of prism 14b in a ¼ position from an end of light stick is triangle having a tip angle (T°) of 100° and a tilt angle (a2) of 34.8°. The depth of the prism 14b is D2 μm. A sectional shape of prism 14c in an end of light stick is triangle having a tip angle (T°) of 100° and a tilt angle (a3) of 24.05°. The depth of the prism 14c is D3 μm.

摘要翻译： 为了有效地向导光板提供辅助光源和前发光。 光棒中心的棱镜14a的截面形状是具有100°的尖角（T°）和40°的倾斜角（a <1> 1 ）的等腰三角形。 棱镜14a的深度是D 1 mum。 棱镜14b的从光棒的端部开始的1/4位置的截面形状是三角形，其尖角（T°）为100°，倾斜角（°S> 2°）为34.8°。 棱镜14b的深度为D2μm。 光棒末端的棱镜14c的截面形状为三角形，其尖角（T°）为100°，倾斜角度（Δ3<3 ）为24.05°。 棱镜14c的深度为D3μm。

公开(公告)号：US20060250818A1

公开(公告)日：2006-11-09

申请号：US10567170

申请日：2004-08-13

申请人： Akimitsu Tsuda

发明人： Akimitsu Tsuda

IPC分类号： F21V7/04 ,  F21V5/00

CPC分类号： G02B6/0053

摘要： An asymmetric prism sheet 15 has a plurality of projections 17 having prism shape on its surface. The projection 17 comprises a first inclined surface 17a having a relatively gentle slope (easy slope) and a second inclined surface 17b having a relatively steep slope (steep slope). A base angle 17d on the side of the second surface 17b is α° and a base angle 17c on the side of the first surface 17a is β°. In the case that the light enters into the asymmetric prism sheet 15, which has the above-mentioned structure, from the bottom surface 15a (light guide plate 11), the light is mainly emitted in the substantially vertical direction (a direction inclined by relatively small angle to the vertical direction) in the first inclined surface 17a (arrows X), and is mainly emitted in the inclined direction (a direction inclined by relatively large angle to the vertical direction) in the second inclined surface 17b (arrows Y).

摘要翻译： 不对称棱镜片15具有在其表面上具有棱镜形状的多个突起17。 突起17包括具有相对平缓的倾斜度（易于倾斜）的第一倾斜表面17a和具有相对陡峭斜率（陡坡））的第二倾斜表面17b。 第二表面17b侧的底角17d为α°，第一表面17a的一侧的底角17c为β°。 在光从底面15a（导光板11）入射到具有上述结构的不对称棱镜片15的情况下，光主要沿大致垂直方向（倾斜方向 在第一倾斜面17a（箭头X）中相对于垂直方向具有相对小的角度），并且主要在第二倾斜表面17b中的倾斜方向（相对于垂直方向倾斜相对大的方向）发射（箭头 Y）。

公开(公告)号：US20050213350A1

公开(公告)日：2005-09-29

申请号：US10514419

申请日：2003-05-12

申请人： Akimitsu Tsuda ,  Satoru Takahashi ,  Hubertina Huck ,  Kousuke Nasu

发明人： Akimitsu Tsuda ,  Satoru Takahashi ,  Hubertina Huck ,  Kousuke Nasu

IPC分类号： G02B6/00 ,  F21V8/00 ,  F21Y101/02 ,  G02B5/30 ,  G02F1/1335 ,  G02F1/13357 ,  G02F1/13363

CPC分类号： G02B6/0013 ,  G02B6/0038 ,  G02F1/133615 ,  G02F1/13362 ,  G02F2001/133616

摘要： To increase an amount of the light that can be used for the display efficiently in the total amount of the emitted light in the liquid crystal display device having the surface lighting device such as the front-light. The light (a) becomes the light component of the linearly polarized light by passing the retardation plate (11a). In the reflective polarizer (11b), only the light (b) that is a component of the polarization axis of the reflective polarizer (11b) passes through the reflective polarizer (11b) to enter into the end portion of the light guide (12). The light that is a component other than the component of the polarization axis of the reflective polarizer (11b) is reflected on the reflective polarizer (11b). The light reflected on the reflective polarizer (11b) changes from the linearly polarized light to the circularly polarized light by passing through the retardation plate (11a). The circularly polarized light (d) is transmitted into the light stick (10) and is reflected on the reflective film in the light stick (10). The reflected light (e) change from the circularly polarized light to the linearly polarized light by the retardation plate (11a). The linearly polarized light (f) passes through the polarization axis of the reflective polarizer (11b) to enter into the end portion of the light guide (12).

摘要翻译： 为了在具有诸如前光的表面照明装置的液晶显示装置中，有效地增加可用于显示的光量的总量。 通过使相位差板（11a）通过，光（a）成为线偏振光的光分量。 在反射偏振器（11b）中，只有作为反射型偏振器（11b）的偏振轴的分量的光（b）通过反射偏振器（11b）进入光导的端部 （12）。 作为反射型偏振器（11b）的偏振轴的成分以外的成分的光在反射型偏振片（11b）上被反射。 反射偏振器（11b）上反射的光通过相位差板（11a）从线性偏振光变化到圆偏振光。 圆偏振光（d）被透射到光棒（10）中并被反射在光棒（10）中的反射膜上。 反射光（e）由相位差板（11a）从圆偏振光转变为线偏振光。 线偏振光（f）穿过反射偏振器（11b）的偏振轴，进入光导（12）的端部。

公开(公告)号：US07852431B2

公开(公告)日：2010-12-14

申请号：US10596416

申请日：2004-12-08

申请人： Akimitsu Tsuda

发明人： Akimitsu Tsuda

IPC分类号： G02F1/1335

CPC分类号： G02B6/0055 ,  G02B6/0051 ,  G02B6/0053 ,  G02F2001/133342

摘要： All of LEDs 12a-12d are switched on in a case of illuminating a main display 21 mainly. Thus, each LED 12a-12d has a lighting region 22a-22d respectively, thereby illuminating the main display 21 entirely. Central LEDs 12b, 12c in LEDs 12a-12d are switched on in a case of illuminating a sub-display mainly. Thus, each LEDs 12b, 12c has a lighting region 22b, 22c respectively, thereby illuminating the sub-display 21b.

摘要翻译： 在主要照明主显示器21的情况下，所有LED 12a-12d都被接通。 因此，每个LED 12a-12d分别具有照明区域22a-22d，从而完全照亮主显示器21。 在主要照亮子显示器的情况下，LED 12a-12d中的中央LED 12b，12c被接通。 因此，每个LED 12b，12c分别具有点亮区域22b，22c，从而照亮子显示器21b。

公开(公告)号：US20080309848A1

公开(公告)日：2008-12-18

申请号：US10596416

申请日：2004-12-08

申请人： Akimitsu Tsuda

发明人： Akimitsu Tsuda

IPC分类号： G02F1/13357 ,  H05B39/04

CPC分类号： G02B6/0055 ,  G02B6/0051 ,  G02B6/0053 ,  G02F2001/133342

摘要： All of LEDs 12a-12d are switched on in a case of illuminating a main display 21 mainly. Thus, each LED 12a-12d has a lighting region 22a-22d respectively, thereby illuminating the main display 21 entirely. Central LEDs 12b, 12c in LEDs 12a-12d are switched on in a case of illuminating a sub-display mainly. Thus, each LEDs 12b, 12c has a lighting region 22b, 22c respectively, thereby illuminating the sub-display 21b.

摘要翻译： 在主要照明主显示器21的情况下，所有LED 12a-12d都被接通。 因此，每个LED 12a-12d分别具有照明区域22a-22d，从而完全照亮主显示器21。 在主要照亮子显示器的情况下，LED 12a-12d中的中央LED 12b，12c被接通。 因此，每个LED 12b，12c分别具有点亮区域22b，22c，从而照亮子显示器21b。

公开(公告)号：US20060050531A1

公开(公告)日：2006-03-09

申请号：US10537519

申请日：2003-12-01

申请人： Akimitsu Tsuda

发明人： Akimitsu Tsuda

IPC分类号： F21V7/04

CPC分类号： G02B6/0038 ,  G02B6/0061

摘要： To provide an assistant light source and a front-light emitting light to the light guide plate efficiently. A sectional shape of prism 14a in the center of light stick is isosceles triangle having a tip angle (T°) of 100° and a tilt angle (a1) of 40°. The depth of the prism 14a is D1 μm. A sectional shape of prism 14b in a ¼ position from an end of light stick is triangle having a tip angle (T°) of 100° and a tilt angle (a2) of 34.8°. The depth of the prism 14b is D2 μm. A sectional shape of prism 14c in an end of light stick is triangle having a tip angle (T°) of 100° and a tilt angle (a3) of 24.05°. The depth of the prism 14c is D3 μm.

摘要翻译： 为了有效地向导光板提供辅助光源和前发光。 光棒中心的棱镜14a的截面形状是具有100°的尖角（T°）和40°的倾斜角（a <1> 1 ）的等腰三角形。 棱镜14a的深度是D 1 mum。 棱镜14b的从光棒的端部开始的1/4位置的截面形状是三角形，其尖角（T°）为100°，倾斜角（°S> 2°）为34.8°。 棱镜14b的深度为D2μm。 光棒末端的棱镜14c的截面形状为三角形，其尖角（T°）为100°，倾斜角度（Δ3<3 ）为24.05°。 棱镜14c的深度为D3μm。

公开(公告)号：US20050162865A1

公开(公告)日：2005-07-28

申请号：US10511475

申请日：2003-04-17

申请人： Akimitsu Tsuda ,  Satoru Takahashi ,  Hubertina Huck ,  Kousuke Nasu

发明人： Akimitsu Tsuda ,  Satoru Takahashi ,  Hubertina Huck ,  Kousuke Nasu

IPC分类号： G02B6/00 ,  F21V8/00 ,  F21Y101/02 ,  G02F1/1335 ,  G02F1/13357 ,  F21V5/02

CPC分类号： G02B6/0056 ,  G02B6/0038 ,  G02B6/0055 ,  G02F1/13362 ,  G02F2001/133616

摘要： An object of the invention is to provide a surface illumination device and a display device using it, which can contribute to improvement of display qualities. A surface illumination device 10 comprising a light guide plate 1 for propagating incident light inside itself and reflecting the light at the reflecting prism face 1S to output the light from the light exit face. This further comprises: a polarizing plate 3 provided on the light exit face; and an anti-reflection film 4 provided on the polarizing plate 3. The reflecting prism face 1S extends so that a direction of electric vector's vibration of an s-polarized light component of a reflecting light ray caused by an incident light ray in a predetermined propagation direction is in parallel with a polarization axis of the polarizing plate 3, whereby a light efficiency can be improved.

摘要翻译： 本发明的目的是提供一种表面照明装置和使用它的显示装置，其可以有助于显示质量的提高。 一种表面照明装置10，其包括导光板1，用于在其内部传播入射光并将光反射在反射棱镜面1S处，以从光出射面输出光。 这还包括：设置在光出射面上的偏光板3; 以及设置在偏振板3上的防反射膜4.反射棱镜面1S延伸，使得由入射光线引起的反射光线的s偏振光分量的电子矢量振动的方向成预定的方向 传播方向与偏振片3的偏振轴平行，能够提高光效。