公开(公告)号：US20040075631A1

公开(公告)日：2004-04-22

申请号：US10671745

申请日：2003-09-29

Applicant: Advanced Display Inc.

Inventor： Kazuhiro Ishiguchi

IPC: G09G003/36

CPC classification number: G09G3/3696 ,  G09G3/3648

Abstract: A reference voltage generator circuit is arranged to generate a reference voltage including an image display voltage for outputting an image write voltage and a black display voltage for outputting a black write voltage. When the reference voltage generator circuit switches a reference voltage to either of the voltages, supplying the voltage to a signal line drive IC, and outputs the voltage as the image write voltage or the black write voltage from the signal line drive IC to a liquid crystal panel, the reference voltage is switched so that an image display period for supplying the image display voltage and a black display period for supplying the black display voltage are contained during one horizontal period, and the switching is synchronized with a change in selection line control signals 502, 503, 504 of lines in which an image is written and lines in which black is written for a selection line 101.

Abstract translation: 参考电压发生器电路被布置为产生包括用于输出图像写入电压的图像显示电压和用于输出黑色写入电压的黑色显示电压的参考电压。 当参考电压发生器电路将参考电压切换到任一电压时，将电压提供给信号线驱动IC，并将作为图像写入电压或黑色写入电压的电压从信号线驱动IC输出到液晶 面板上，参考电压被切换，使得用于提供图像显示电压的图像显示周期和用于提供黑色显示电压的黑色显示周期被包含在一个水平周期期间，并且切换与选择线控制信号的改变同步 写入图像的行的502,503,504以及针对选择线101写入黑色的行。

公开(公告)号：US20040113044A1

公开(公告)日：2004-06-17

申请号：US10673369

申请日：2003-09-30

Applicant: ADVANCED DISPLAY INC.

Inventor： Kazuhiro Ishiguchi

IPC: G01J001/32 ,  H01J005/16

CPC classification number: H05B33/0869 ,  G02F2001/133628 ,  H05B33/0872

Abstract: A light source unit includes a light source having LED chips for emitting different colors of light and an optical sensor for detecting light from a light mixer. A light source control section controls by feedback control luminance of each of the LED chips according to values detected by the optical sensor. The light source unit also includes a temperature control section for controlling the temperature of the light source. The temperature control section is a feedback control system. Keeping the light source at a constant temperature allows suppressing spectrum changes of the LED chips with temperature, thereby suppressing changes in the luminance and chromaticity of the light source unit.

Abstract translation: 光源单元包括具有用于发射不同颜色的光的LED芯片的光源和用于检测来自光混合器的光的光学传感器。 光源控制部根据光传感器检测出的值来控制各LED芯片的反馈控制亮度。 光源单元还包括用于控制光源的温度的温度控制部。 温度控制部分是反馈控制系统。 将光源保持在恒定温度允许抑制LED芯片随着温度的变化，从而抑制光源单元的亮度和色度的变化。

公开(公告)号：US20040135750A1

公开(公告)日：2004-07-15

申请号：US10741006

申请日：2003-12-19

Applicant: ADVANCED DISPLAY INC.

Inventor： Kazuhiro Ishiguchi

IPC: G09G003/32

CPC classification number: G09G3/3611 ,  G09G3/3406 ,  G09G5/02 ,  G09G2320/02

Abstract: The object of the present invention is to provide a transmission type display device which is composed of a light source having plural emission colors and which can control the chromaticity of display images, maintain it with high precision, and be manufactured at low cost by easing the spectral sensitivity requirements required for the chromaticity sensor. The transmission type display device of the present invention is provided with plural light sources having different emission colors and which displays color images by making the light emitted from said light sources pass through a color-blending part and controlling the light by an optical shutter. The transmission type display device of the invention includes: at least three light detection devices installed in positions inward to said light source than said optical shutter; and a light source control circuit which controls the emission intensities of said light sources of different colors to keep the display chromaticity constant so that the sensitivity reading values of said light detection devices are kept constant, wherein the spectral sensitivities of said light detection devices have characteristics the same as or approximated to the characteristics obtained by making the sum of the real number multiples of luminosity spectral characteristics be multiplied by the spectral transmittance from said light sources to the display surface and then be divided by the spectral transmittance from said light sources to the positions where said light detection devices are installed.

Abstract translation: 本发明的目的是提供一种透射型显示装置，其由具有多个发光颜色的光源组成，并且可以控制显示图像的色度，高精度地保持，并且通过减轻 色度传感器所需的光谱灵敏度要求。 本发明的透射型显示装置设置有具有不同发光颜色的多个光源，并且通过使从所述光源发射的光通过色彩混合部分并通过光学快门控制光来显示彩色图像。 本发明的透射型显示装置包括：至少三个光检测装置，安装在所述光源的内侧，比所述光闸快; 以及光源控制电路，其控制不同颜色的所述光源的发射强度，以保持显示色度恒定，使得所述光检测装置的灵敏度读取值保持恒定，其中所述光检测装置的光谱灵敏度具有特性 与通过将发光度光谱特性的实数倍数的和相乘而获得的特性相乘或近似于从所述光源到显示表面的光谱透射率，然后将其从所述光源的光谱透射率除以 所述光检测装置的安装位置。