公开(公告)号：EP0915367B1

公开(公告)日：2007-06-06

申请号：EP98917611.0

申请日：1998-04-22

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： OGAWA, Kazufumi ,  ISHIKAWA, Shinzaburo ,  OKADA, Takashi ,  TAKETOMI, Yoshinao

IPC分类号： G02F1/136 ,  H04N1/04 ,  G06F9/35 ,  H04N1/028 ,  G06T1/00

CPC分类号： H04N1/00129 ,  G02F1/135 ,  G02F1/1368 ,  G09G3/3648 ,  G09G2300/0408 ,  G09G2300/0434 ,  G09G2300/0809 ,  G09G2310/0235 ,  H04N1/00127 ,  H04N1/028 ,  H04N1/02805 ,  H04N1/486 ,  H04N2201/0081

摘要： A n-channel TFT (L) (26) which is connected to a transparent pixel electrode (24) and a p-channel TFT (D) (27) which is connected to the cathode side of a photodiode (25) are connected to a common source line (22) and a common gate line (23). When a positive voltage (VL) or a negative voltage (VD) are applied to the gate line (23), both the TFTs can be independently controlled to be in a ON-state. A backlight (18) which is provided on the rear of an active matrix panel (13) has monochromatic light sources (18a - 18c) emitting red, blue and green lights, and images of the colors are displayed in a time-division manner. When the images are read, by using the monochromatic light sources (18a - 18c) successively, the red, blue and green component images are read for every pixel. Only the parts of a liquid crystal layer (14) corresponding to every other pixel (P1) in the vertical and horizontal directions are brought into light transmitting states, a certain amount of charge is stored only in the photodiodes (25) of the pixels (P1), and the photodiodes (25) are exposed to light. Then the image formed by the pixels (P1) is read. The similar processes for the pixels adjacent to the pixels (P1) are repeated to read the image of the original for all the pixels.

摘要翻译： 连接到透明像素电极（24）的n沟道TFT（L）（26）和连接到光电二极管（25）的阴极侧的p沟道TFT（D）（27）连接到 公共源极线（22）和公共栅极线（23）。 当正电压（VL）或负电压（VD）被施加到栅极线（23）时，两个TFT可以被独立地控制为处于导通状态。 设置在有源矩阵面板（13）的背面的背光（18）具有发出红色，蓝色和绿色光的单色光源（18a-18c），并且以时分方式显示这些颜色的图像。 当读取图像时，通过依次使用单色光源（18a-18c），针对每个像素读取红色，蓝色和绿色分量图像。 仅在垂直和水平方向上与每隔一个像素（P1）相对应的液晶层（14）的部分进入透光状态，一定量的电荷仅存储在像素（P）的光电二极管（25） P1）和光电二极管（25）暴露于光下。 然后读取由像素（P1）形成的图像。 重复与像素（P1）相邻的像素的类似处理以读取所有像素的原始图像。

公开(公告)号：EP0915367A1

公开(公告)日：1999-05-12

申请号：EP98917611.0

申请日：1998-04-22

申请人： MATSUSHITA ELECTRIC INDUSTRIAL CO., LTD.

发明人： OGAWA, Kazufumi ,  ISHIKAWA, Shinzaburo ,  OKADA, Takashi ,  TAKETOMI, Yoshinao

IPC分类号： G02F1/136 ,  H04N1/04 ,  G06F9/35 ,  H04N1/028 ,  G06T1/00

CPC分类号： H04N1/00129 ,  G02F1/135 ,  G02F1/1368 ,  G09G3/3648 ,  G09G2300/0408 ,  G09G2300/0434 ,  G09G2300/0809 ,  G09G2310/0235 ,  H04N1/00127 ,  H04N1/028 ,  H04N1/02805 ,  H04N1/486 ,  H04N2201/0081

摘要： A TFT (L) 26 with n-channel, which is connected to a transparent pixel electrode 24, and a TFT (D) 27 with p-channel, which is connected to a cathode side of a photodiode 25, are connected to a common source line 22 and a common gate line 23 and are composed so that each of them can be controlled in an ON state independently by impressing a positive voltage V L or an negative voltage V D on the gate line 23. A backlight 18 which is provided on a backside of an active matrix panel 13 comprises monochromatic light sources 18a-18c for emitting each monochromatic light of red, blue or green, and a picture of each color is displayed in a time division. While reading a picture, the picture of the components of red, blue and green are read at each simplex pixel by using each of the monochromatic light sources 18a-18c sequentially. A picture at a pixel P1 are read by storing a predetermined electric charge only at the photodiode 25 of the pixel P1 and exposing the photodiode 25 as well as making a liquid crystal layer 14 corresponding to every two pixels P1 vertically and horizontally a transmission state, and an original picture is read at all pixels by repeating similar operation at each of pixels which are adjacent to the pixel P1.

摘要翻译： 连接到透明像素电极24的具有n沟道的TFT（L）26和连接到光电二极管25的阴极侧的具有p沟道的TFT（D）27连接到公共电极 源极线22和公共栅极线23，并且通过在栅极线23上施加正电压VL或负电压VD而独立地控制它们中的每一个。背光18设置在 有源矩阵面板13的背面包括用于发射红，蓝或绿各色单色光的单色光源18a-18c，并且以时分方式显示每种颜色的图像。 在读取图像时，通过顺序地使用每个单色光源18a-18c在每个单面像素处读取红色，蓝色和绿色成分的图像。 通过仅在像素P1的光电二极管25处存储预定电荷并且曝光光电二极管25以及在垂直和水平方向上使与每两个像素P1相对应的液晶层14成为透射状态来读取像素P1处的图片， 并且通过在与像素P1相邻的每个像素处重复类似的操作，在所有像素处读取原始图像。