摘要:
A display control method of a liquid crystal displaying apparatus for driving a liquid crystal panel comprising two substrates, and a liquid crystal layer therebetween. The driving means includes: pixel electrodes each corresponding to a pixel; and for time-division, emitting an LED (Light Emitting Diode) array for red, green, and blue as a back light within each display period, in synchronization with the on/off operation of the pixel electrodes. Each display period is divided into four. The LEDs in the LED array emit red, green, and blue lights in one of the divided periods. Then, one of the three colors is emitted again. This method solves the problem of the conventional control method for performing time-division color display in a liquid crystal displaying apparatus; namely, the insufficient emission intensity of LEDs makes the intensity of the entire liquid display apparatus insufficient, such that white is seen as somewhat grayish white to the human eye.
摘要:
A ferroelectric liquid crystal display element equipped with a ferroelectric liquid crystal layer exhibiting a bookshelf layer structure and having a helical pitch of about one or two times a thickness thereof. A ferroelectric liquid crystal display element equipped with a ferroelectric liquid crystal layer holding a mingling state of two areas: one is an area where a polarization direction after removing of a predetermined voltage over the threshold voltage for a spontaneous polarization remains as inverted; and the other is an area where the polarization direction is again inverted back to the original.
摘要:
A liquid crystal display device includes a first substrate, a first electrode pattern formed on the first substrate, a first molecular orientation film, formed on the first substrate to cover the first electrode pattern, for orienting liquid crystal molecules. The display device further includes a second substrate formed in a position parallel to and apart from the first substrate, a second electrode pattern formed on a surface of the second substrate facing the first substrate, a second molecular orientation film, formed on the second substrate to cover the second electrode pattern, for orienting the liquid crystal molecules. And the display device further includes a ferroelectric liquid crystal layer filled in a gap between the first molecular orientation film and the second molecular orientation film. In the liquid crystal display device, the first molecular orientation film orients the liquid crystal molecules inside the ferroelectric liquid crystal layer in a first direction, and the second molecular orientation film orients the liquid crystal molecules inside the ferroelectric liquid crystal layer in a second direction.
摘要:
A liquid crystal display unit includes a liquid crystal panel having a plurality of liquid crystal pixels and a plurality of switching elements provided in correspondence to the respective pixels. A back light disposed at the back of the liquid crystal panel and guides red, green, and blue light to the surface thereof; an image memory for storing pixel data PD to be displayed on the respective pixels; an inverted data generating circuit for generating inverted pixel data #PD of the respective pixel data PD; and a control signal generating circuit and a data driver wherein first scanning for writing the pixel data PD with respect to individual pixels of the liquid crystal panel during each period in which red, green, and blue light are emitted in time-sharing manner, and second scanning for writing the inverted pixel data #PD with respect thereto are carried out in this order. Such problems that crosstalk occurs easily, besides response speed thereof is comparatively slow, so that it is not suitable for display of moving picture despite manufacturing cost of STN type display unit is comparatively inexpensive, while because TFT-TN type display unit requires a highly luminous back light, its power consumption is high, viewing angle is narrow, adjustment is difficult in color balance and the like are solved.
摘要:
When a photopolymerization compound (molecular weight: not less than 300) having at least two ultraviolet light sensitive portions in its molecular structure is mixed with ferroelectric liquid crystal and an exposure to ultraviolet light is performed, a continuous structure is formed over almost whole length between two glass substrates, and a continuous twisted structure is formed between the glass substrates in the state of liquid crystal molecular orientation. Before the exposure to ultraviolet light, the photopolymerization compound does not exhibit satisfactory compatibility with the ferroelectric liquid crystal to be mixed, but exhibits phase separation in the mixed state. The ferroelectric liquid crystal has a bookshelf layer structure.
摘要:
A liquid crystal panel includes a glass substrate with pixel electrodes that are arranged in a matrix shape, TFTs that are connected to the pixel electrodes, and a glass substrate with an opposing electrode and color filters that are arranged in a matrix shape. A liquid crystal layer is formed in a space between the glass substrates by filling a ferroelectric liquid crystal into the space. When writing display data, and when deleting display data that has been written, a voltage, not including 0V, that becomes a voltage potential, or in other words, a voltage that is greater than a threshold voltage at which the optical characteristic of the filled ferroelectric liquid crystal changes is applied between the opposing electrode and pixel electrodes. An image is displayed over all gradation numbers, including the low-gradation side, and the display characteristic is improved.
摘要:
There is provided a liquid crystal display including a panel using a liquid crystal material having spontaneous polarization, such as ferroelectroic liquid crystal (FLC), having a faster response time suitable to display dynamic images. The FLC has the disadvantage caused by the incomplete memory effect at during driving for displaying “black” in several frames, where the light transmittance is preferably desired zero. The panel in the display are driven signals so that the driving signals are applied across the picture element, where the signals are positively or negatively offset to reference voltage of the panel.
摘要:
In a field sequential display method the light emission intensities of the luminous colors are controlled to realize a plurality of color reproduction regions having different areas and make the color purity variable. In the case of high-resolution image display, a first control method is adopted in which in synchronism with the input of the pixel data of one of the luminous colors, the light of the one of the luminous colors is emitted and the lights of the other luminous colors are not emitted. In the case of coarse image display, a second control method is adopted in which in synchronism with the input of the pixel data of one of the luminous colors, the light of the one of the luminous colors and the lights of the other luminous colors are emitted. By the second method, the color purity is slightly decreased to suppress the visual irritation.
摘要:
A liquid crystal display device comprising: a peripheral electrode 31 that is formed around the outside of a display region 1a on a liquid crystal panel 1 and that generates an orientation state that is equivalent to that of the display region 1a; and an inverted electrode 32 that is formed around the outside of the peripheral electrode 31 and that generates an orientation state that has polarity opposite to that of the display region 1a; wherein the peripheral electrode 31 and the inverted electrode 32 have bipectinate construction and are arranged on both sides of a non-oriented buffer region 33. Orientation defects that are generated in a seal are trapped inside the buffer region 33 due to the existence of the peripheral electrode 31 and inverted electrode 32 that have different growth directions, so the orientation defects do not intrude into the display region 1a.
摘要:
Ferroelectric liquid crystal having spontaneous polarization is provided between two confronting substrates; pixel electrodes corresponding to liquid crystal cells, TFTs for switching connected to the pixel electrodes and storage capacitors for storing electric charge in the pixel electrodes are provided on the inner face of one of the substrates;; wherein a ratio (CS/CLC) of capacity of storage capacitor (CS) against that of liquid crystal cell (CLC) satisfies 0.2≦CS/CLC≦5. Driving voltage for liquid crystal material is maintained at a low level, and a liquid crystal material with large spontaneous polarization can be employed.
摘要翻译:具有自发极化的铁电液晶设置在两个相对的基板之间; 对应于液晶单元的像素电极,连接到像素电极的开关用TFT和用于在像素电极中存储电荷的存储电容器设置在一个基板的内表面上; 其中存储电容器(C S SMALLCAPS>)的容量与液晶单元(C S SMALLCAPS> / C LC SMALLCAPS> > LC SMALLCAPS>)满足0.2 <= C / C LC SMALLCAPS> <= 5。 液晶材料的驱动电压维持在低水平,可以采用自发极化大的液晶材料。