Abstract: A display panel including a pair of substrates, a color filter layer, and a display medium is provided. The substrates including a plurality of pixels, wherein each pixel at least having a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel. The color filter layer is disposed on one of the substrates and at least has a first color filtering pattern disposed in the first sub-pixel, a second color filtering pattern disposed in the second sub-pixel, a third color filtering pattern disposed in the third sub-pixel, and a fourth color filtering pattern disposed in the fourth sub-pixel. The display medium is disposed between the pair of substrates, wherein the display medium correspondingly disposed in the first sub-pixel, the second sub-pixel, the third sub-pixel, and the fourth sub-pixel has thicknesses of T1, T2, T3 and T4, respectively, and T1>T2>T3 and T1>T4>T3.

Abstract: An exemplary method for driving a display device is provided. At least one set of input signals is received. Finding the original signals being the same with the input signals in the signal transforming table is executed. The pixel driving signals is outputted. If at least one of the found second and third original signals is equal to zero, and the found first original signal is equal to neither zero nor maximal gray scale, at least one of the outputted second and third sub-pixel driving signals, and the outputted fourth sub-pixel driving signal are equal to zero. Then, at least one of the pixels of the pixel array is driven by the outputted pixel driving signals. The input signals is transformed into the pixel driving signals by use of the signal transforming table, thereby saving the cost and improving the displaying quality.

Abstract: A display device and a display panel and a color filter thereof are provided. The color filter includes a transparent substrate, at least a red filter film, at least a green filter film, at least a plurality of blue filter film and at least a white filter film. The red filter films, the green filter films, the blue filter films and the white filter films are disposed on the transparent substrate. The blue filter films have a first largest transmittance when a light with first wavelength transmits it. The green filter films have a second largest transmittance when a light with second wavelength transmits it. The white filter films have a third largest transmittance when a light with third wavelength transmits it. The third largest transmittance is larger than the first largest transmittance and the second largest transmittance. The third wavelength is between the first wavelength and the second wavelength.

Abstract: A pixel structure includes a red sub-pixel, a green sub-pixel, a blue sub-pixel and a white sub-pixel. The red sub-pixel, the green sub-pixel and the blue sub-pixel are suitable for providing a first white light, and a chroma coordinate of the first white light is (x1, y1). The white sub-pixel is suitable for providing a second white light, and a chroma coordinate of the second white light is (x2, y2). The chroma coordinate of the first white light is different from the chroma coordinate of the second white light, that is, (x1, y1)?(x2, y2), while x2?x1 and y2?y1.

Abstract: A color filter with low color shift is defined by a light leakage spectrum in the dark state. The color filter is disposed between two polarizing plates so as to measure a first spectrum of dark state a(?), wherein the polarizing directions of the polarizers are orthogonal to each other. A second spectrum of dark state b(?) while the color filter is removed, and then a ratio spectrum of light leakage intensity I(?)=(a(?)/b(?)) is determined. A maximum value P1 in the ratio spectrum of light leakage intensity is determined in a wavelength region in which the ratio spectrum of light leakage intensity of green photoresist overlaps that of a blue photoresist. A maximum value P2 in the ratio spectrum of light leakage intensity is determined in a wavelength region in which the ratio spectrum of light leakage intensity of red photoresist locates.

Abstract: A color filter including a substrate, a black matrix and a plurality of color filter films is provided. The black matrix is disposed on the substrate and the black matrix has a plurality of openings. The black matrix has a bottom surface contacting with the substrate and a top surface having an area equal to that of the bottom surface. Besides, a plurality of color filter films are disposed on the substrate exposed by the openings respectively and each of the color filter films has a flat top surface. In the above mentioned color filter, coincidence between the black matrix and the color filter films is excellent.

Abstract: An optical recognition device is provided. The optical recognition device includes a transparent substrate, a patterned infrared reflective film formed thereon, and an infrared anti-reflective film sheltering a gap in a recognition pattern of the patterned infrared reflective film, wherein the patterned infrared reflective film reflects the recognition pattern by reflection of infrared light and transmission of visible light. The invention also provides a display incorporating the optical recognition device.

Abstract: A color filter with low color shift is defined by a light leakage spectrum in the dark state. The color filter is disposed between two polarizing plates so as to measure a first spectrum of dark state a(?), wherein the polarizing directions of the polarizers are orthogonal to each other. A second spectrum of dark state b(?) while the color filter is removed, and then a ratio spectrum of light leakage intensity I(?)=(a(?)/b(?)) is determined. A maximum value P1 in the ratio spectrum of light leakage intensity is determined in a wavelength region in which the ratio spectrum of light leakage intensity of green photoresist overlaps that of a blue photoresist. A maximum value P2 in the ratio spectrum of light leakage intensity is determined in a wavelength region in which the ratio spectrum of light leakage intensity of red photoresist locates.

Abstract: A liquid crystal display comprising a backlight module and a liquid crystal display panel is provided. The backlight module comprises a white point source that emits a spectrum of light comprising three peaks. The liquid crystal display panel comprises a liquid crystal layer disposed between a color filter substrate, which comprises a blue filter, a green filter and a red filter, and an opposite substrate. The color filter substrate and the backlight module satisfy the following formulas: ? 555 605 ? ? BL ? ( ? ) × CF Red ? ( ? ) × ?? ? 6.0 ; ( 1 ) ? 580 630 ? ? BL ? ( ? ) × CF Green ? ( ? ) × ?? ? 3.5 ; ( 2 ) ? 505 580 ? ? BL ? ( ? ) × CF Blue ? ( ? ) × ?? ? 3.5 . ( 3 ) Herein, the backlight module has the maximum luminance in one wavelength, with the maximum luminance being set at 1.0. BL (?) represents the normalized luminance spectrum at each wavelength.

Abstract: A LCD comprises a color filter and a backlight source. The color filter has a plurality of green filter units having transmittance ranging from about 0.1% to about 60% at an optical wavelength of 500nm, and a plurality of blue filter units having transmittance ranging from about 0.1% to about 50% at the optical wavelength of 500nm. The backlight source comprises a first phosphor with a first peak emission wavelength between 440nm and 460nm, a second phosphor with a second peak emission wavelength between 540nm and 550nm, and a third phosphor with third peak emission wavelength between 500nm and 530nm. The intensity ratio of the second peak emission wavelength to the first peak emission wavelength ranges from 0 to about 3.6, and the intensity ratio of the third peak emission wavelength to the first peak emission wavelength ranges from about 0.8 to about 2.7.