公开(公告)号：EP1714186A1

公开(公告)日：2006-10-25

申请号：EP05702817.7

申请日：2005-01-27

Applicant: Koninklijke Philips Electronics N.V.

Inventor： DUINE, Peter, A. ,  BROER, Dirk, J. ,  KRIJN, Marcellinus, P., C., M. ,  SCHOELLMANN, Volker ,  JOHNSON, Mark, T. ,  BAESJOU, Patrick, J. ,  NIESSEN, Eduard, M., J.

IPC: G02F1/167 ,  G09G3/34

CPC classification number: G02F1/167 ,  G02F1/134363 ,  G09G3/344

Abstract: The electrophoretic display panel (1) for displaying a picture and subsequently displaying a subsequent picture has a pixel (2) having an electrophoretic medium (5) having first and second charged particles (6, 7) and an optical state depending on the positions of the particles (6, 7) in the common region (30) of the pixel (2). Furthermore, transition control means are able to control a transition of the first and the second particles (6, 7) being in substantially separated domains of in the common region (30) for displaying the picture to substantially separated domains of the common region (30) for displaying the subsequent picture. For the display panel (1) to be able to have an attainable optical state for displaying the subsequent picture which is unequal to the optical state determined by the mixture of the first and second particles (6, 7), even if the particles (6, 7) have substantially equal electrophoretic mobilities, the transition control means are further able to control the first and the second particles (6, 7) to be in substantially separated domains of the common region (30) during the transition.

公开(公告)号：EP1620764A1

公开(公告)日：2006-02-01

申请号：EP04728882.4

申请日：2004-04-22

Applicant: Koninklijke Philips Electronics N.V.

Inventor： SCHOELLMANN, Volker ,  ZHOU, Guofu ,  JOHNSON, Mark, T.

IPC: G02F1/167

CPC classification number: G02F1/167

Abstract: The electrophoretic display device has a plurality of pixels with an electrophoretic medium (7). Each pixel is divided into a first and a second sub-pixel (1; 2). Each pixel is provided with a common electrode (3) extending over the first and second sub­pixel. The first sub-pixel is provided with a first sub-pixel electrode (11) and the second sub­-pixel is provided with a second sub-pixel electrode (12). Preferably, the first sub-pixel is provided with a first light absorbing layer (21) and the second sub-pixel is provided with a second light absorbing layer (22), while the first and second light absorbing layer are provided at opposite sites of the pixels. Preferably, the electrophoretic medium comprises micro-encapsulated electrophoretic ink. Preferably, the ink comprises two types of particles (31; 32) always staying in the optical path of the pixels. According to the invention a double­sided display device is provided with a single electrophoretic medium.

Abstract translation: 电泳显示装置具有多个具有电泳介质（7）的像素。 每个像素被分成第一和第二子像素（1; 2）。 每个像素设置有延伸在第一和第二子像素上的公共电极（3）。 第一子像素设置有第一子像素电极（11），第二子像素设置有第二子像素电极（12）。 优选地，第一子像素设置有第一光吸收层（21），并且第二子像素设置有第二光吸收层（22），而第一和第二光吸收层设置在第一光吸收层 像素。 优选地，电泳介质包括微封装电泳墨水。 优选地，墨水包括总是停留在像素的光路中的两种类型的粒子（31; 32）。 根据本发明，双面显示设备具有单个电泳介质。

公开(公告)号：EP1521985A1

公开(公告)日：2005-04-13

申请号：EP03727893.4

申请日：2003-06-16

Applicant: Koninklijke Philips Electronics N.V.

Inventor： SCHOELLMANN, Volker ,  CREEMERS, Tijsbert M.H. ,  MARSH, Simon R.

IPC: G02B6/00 ,  G02B26/00

CPC classification number: G02B26/02 ,  G02B6/0063 ,  G02B6/0076

Abstract: A display device is described, which comprises a movable element (17) and selection means (15,16) for locally bringing the movable element into contact with a selected one of two light guides (11,12), arranged on either sides of the movable element. This provides an essentially symmetric display device, with one light guide on each side of the movable element. The display can display information in two directions, and the selection means can be controlled in a suitable way to activate selected portions of the guides. The invention can be used to provide a bi-directional display.

公开(公告)号：EP1714186B1

公开(公告)日：2007-11-14

申请号：EP05702817.7

申请日：2005-01-27

Applicant: Koninklijke Philips Electronics N.V.

Inventor： DUINE, Peter, A. ,  BROER, Dirk, J. ,  KRIJN, Marcellinus, P., C., M. ,  SCHOELLMANN, Volker ,  JOHNSON, Mark, T. ,  BAESJOU, Patrick, J. ,  NIESSEN, Eduard, M., J.

IPC: G02F1/167 ,  G09G3/34

CPC classification number: G02F1/167 ,  G02F1/134363 ,  G09G3/344

Abstract: The electrophoretic display panel (1) for displaying a picture and subsequently displaying a subsequent picture has a pixel (2) having an electrophoretic medium (5) having first and second charged particles (6, 7) and an optical state depending on the positions of the particles (6, 7) in the common region (30) of the pixel (2). Furthermore, transition control means are able to control a transition of the first and the second particles (6, 7) being in substantially separated domains of in the common region (30) for displaying the picture to substantially separated domains of the common region (30) for displaying the subsequent picture. For the display panel (1) to be able to have an attainable optical state for displaying the subsequent picture which is unequal to the optical state determined by the mixture of the first and second particles (6, 7), even if the particles (6, 7) have substantially equal electrophoretic mobilities, the transition control means are further able to control the first and the second particles (6, 7) to be in substantially separated domains of the common region (30) during the transition.

Abstract translation: 用于显示图像并随后显示后续图像的电泳显示面板（1）具有带有具有第一和第二带电粒子（6,7）的电泳介质（5）的像素（2）以及取决于第一和第二带电粒子 像素（2）的公共区域（30）中的粒子（6,7）。 此外，转换控制装置能够控制处于公共区域（30）中基本上分离的区域中的第一和第二粒子（6,7）的转变，用于将图像显示为公共区域（30 ）用于显示后续图片。 为了使显示面板（1）能够具有可达到的光学状态以显示与由第一和第二颗粒（6,7）的混合物确定的光学状态不相等的后续图片，即使颗粒（6 ，7）具有基本相等的电泳迁移率，所述转换控制装置进一步能够在所述转变期间将所述第一和第二粒子（6,7）控制在所述公共区域（30）的基本上分离的区域中。

公开(公告)号：EP1581838A2

公开(公告)日：2005-10-05

申请号：EP03813951.5

申请日：2003-12-05

Applicant: Koninklijke Philips Electronics N.V.

Inventor： DE ZWART, Siebe, T. ,  SCHOELLMANN, Volker ,  DUINE, Peter, A. ,  LANGE, Ruediger, J. ,  WILLEMSEN, Oscar, H. ,  VAN WOUDENBERG, Roel ,  HOPPENBROUWERS, Jurgen, J., L. ,  MARRA, Johannes

IPC: G04G3/00

CPC classification number: G09G3/3433 ,  G09G3/00 ,  G09G3/2014 ,  G09G3/2022 ,  G09G3/2077 ,  G09G3/3406 ,  G09G2310/0237 ,  G09G2310/06 ,  G09G2320/0276

Abstract: A display device comprising a plurality of pixels (26), a light source (23), and addressing means (24, 25) for coupling a selected pixel to said light source to thereby emit light, wherein the addressing means (24, 25) are arranged to address each pixel using pulse-width modulation (PWM). Further, the display comprises means (20) for amplitude modulating the intensity of said light source (23). The combination of the two modulations generates an exponentially distributed emitted light intensity, enabling proper gray scale rendering for a limited resolution in the time domain.

公开(公告)号：EP1673948A1

公开(公告)日：2006-06-28

申请号：EP04770135.4

申请日：2004-09-30

Applicant: Koninklijke Philips Electronics N.V.

Inventor： KARMAN, Gerardus P. ,  SCHOELLMANN, Volker

IPC: H04N13/00

CPC classification number: H04N13/31 ,  H04N13/305

Abstract: A display device for displaying a three dimensional image such that different views are displayed according to the viewing angle has a display panel with a plurality of separately addressable pixels for displaying said image. The pixels are grouped such that different pixels in a group correspond to different views of the image. A display driver controls a transmission characteristic of each pixel to generate an image according to received image data. The drive signals applied to each pixel in the display panel are adjusted using grey scale correction values that vary the optical transmission of each pixel within a group so as to produce an image grey scale for each point in the image that is independent of viewing direction.

公开(公告)号：EP1668483A2

公开(公告)日：2006-06-14

申请号：EP04769994.7

申请日：2004-09-14

Applicant: Koninklijke Philips Electronics N.V.

Inventor： LANGE, Ruediger, J. ,  SCHOELLMANN, Volker

IPC: G06F3/033

CPC classification number: G02B6/0011 ,  G06F3/0421 ,  G06F2203/04109

Abstract: The present invention relates to a display device with a detection system for detecting an input position on a screen (301) of the display. A light guide (302) is arranged adjacent to the screen (301). The light guide (302) has a light source (308) arranged to emit light (310) into the light guide (302). The optical matching between the light guide (302) and its surroundings is adapted such that the light (310) of the light source (308) is normally confined within the light guide (302) by means of total internal reflection. However, a user establishing physical contact with the light guide (302) perturbs the state of total internal reflection, and light (310) will be extracted from the light guide (302). In the display device, light detecting means (303) are arranged to detect said light (310) and relate this detection to an input position where the user contact occurred. The display is preferably an LCD, O-LED or P-LED type display.

公开(公告)号：EP1614095A1

公开(公告)日：2006-01-11

申请号：EP04723690.6

申请日：2004-03-26

Applicant: Koninklijke Philips Electronics N.V.

Inventor： SCHOELLMANN, Volker ,  CREEMERS, Tijsbert, M., H. ,  DUINE, Peter, A. ,  MARRA, Johannes ,  GIRALDO, Andrea

IPC: G09G3/34

CPC classification number: G09G3/3473 ,  G09G3/2081 ,  G09G2300/0809 ,  G09G2300/0823 ,  G09G2300/0842 ,  G09G2310/061

Abstract: A display device comprising a light guide (12), a back plate (14), a flexible element (15) arranged in between said light guide (12) and said back plate (14), and addressable electrodes (23) for inducing electrostatic forces on said element (15) and for bringing selected portions of said element (15) into contact with said light guide (12), in order to extract light from said light guide (12). The addressable electrodes (23) are arranged only on one of said light guide (12) and said back plate (14), and a biasing force acts on said flexible element (15) in a direction away from said addressable electrodes (23). The voltages required to operate the display will also be lower compared to the conventional foil display. In principle it is feasible to keep the electrode of the flexible element at ground potential while applying 10-20V pulses to the addressable electrodes to overcome the biasing force.