摘要:
A liquid crystal display device having openings formed in electrodes using an ECB mode to provide an improved image display quality. There is provided a liquid crystal layer having a liquid crystal director vertically aligned between a plurality of pixel electrodes and an opposed electrode. An opening without any electrode therein is formed at a predetermined position of the opposed electrodes corresponding to the respective pixel electrode. As a result, the oriented direction of the liquid crystal director in each pixel is stably determined, enabling reduction of the dispersion of the orientation of the liquid crystal direction for each pixel and to widen the viewing angle.
摘要:
A liquid crystal display device includes, in sequence, a first substrate, a liquid crystal layer, and a second substrate. The first substrate, the liquid crystal layer, and the second substrate are disposed in a subpixel having a transmissive portion for performing transmissive display and a reflective portion for performing reflective display. The first substrate includes a first electrode and a second electrode. The second substrate includes a third electrode. The first electrode and the second electrode are disposed in the transmissive portion and at least the first electrode and the third electrode are disposed in the reflective portion. Alignment of the liquid crystal layer is controlled by an electric field occurring between the first electrode and the second electrode in the transmissive portion and by an electric field occurring between the first electrode and the third electrode in the reflective portion.
摘要:
A display device includes: a liquid crystal layer driven based on an image signal; a reflection layer reflecting ambient light to the liquid crystal layer, in which the ambient light enters the reflection layer through the liquid crystal layer; a retardation layer provided on a side of the liquid crystal layer from which the ambient light enters; a polarizer provided on the side of the liquid crystal layer from which the ambient light enters; and a modulation layer varying a color tone of image light depending on illuminance of the ambient light. The image light is reflected from the reflection layer and is emitted to outside through the liquid crystal layer, the retardation layer, and the polarizer.
摘要:
A vertically aligned type liquid crystal display includes a liquid crystal layer disposed between pixel electrodes and a common electrode and containing vertically aligned liquid crystal molecules, the orientation of the liquid crystal molecules being controlled by an electric field. An orientation controller is formed on the common electrode at a position opposing the pixel electrode and an aspect ratio, i.e., a vertical to horizontal length ratio of the pixel electrode is set to at least 2. Alternatively, the pixel electrode is partitioned into at least two electrode regions so that each region represents a divided pixel electrode. An orientation controller is formed on the common electrode so as to correspond to each divided pixel electrode, an aspect ratio of each divided pixel electrode is set to at least 2. As such, the influence at the edge sections of the pixel electrode is reduced, viewing angle characteristic and transmittance are improved, and average response time is shortened.
摘要:
A liquid crystal display device includes, in sequence, a first substrate, a liquid crystal layer, and a second substrate. The first substrate, the liquid crystal layer, and the second substrate are disposed in a subpixel having a transmissive portion for performing transmissive display and a reflective portion for performing reflective display. The first substrate includes a first electrode and a second electrode. The second substrate includes a third electrode. The first electrode and the second electrode are disposed in the transmissive portion and at least the first electrode and the third electrode are disposed in the reflective portion. Alignment of the liquid crystal layer is controlled by an electric field occurring between the first electrode and the second electrode in the transmissive portion and by an electric field occurring between the first electrode and the third electrode in the reflective portion.
摘要:
A pixel circuit that is connected with a scanning line and a data line includes a first transistor of which a gate electrode is connected with the scanning line and one of a source electrode and a drain electrode is connected with the data line, a second transistor of which a gate electrode is connected with the scanning line, one of a source electrode and a drain electrode is connected with the first transistor, and the other one of the source electrode and the drain electrode is connected with a first node, an auxiliary capacitor connected with a node at which the first transistor and the second transistor are connected to each other, a pixel electrode connected with the first node, a counter electrode opposed to the pixel electrode, liquid crystal held between the pixel electrode and the counter electrode, and a holding capacitor connected with the first node.
摘要:
A display device that performs display by illuminating an object having a display surface is reduced in size and improved in viewability. A panel-shaped illumination device is disposed facing a display surface of an instrument that is the illumination object. The illumination device has light-emitting regions patterned finely and facing the display surface of the instrument. A light-shielding layer is disposed on the light-emitting region of the illumination device on a side not facing the display surface of the instrument, that is, an observer-side. Illumination light emitted from the light-emitting region illuminates the display surface of the instrument uniformly and is reflected toward the observer before visually recognized through transparent region of the illumination device. At that time, direct visual recognition by the observer of the illumination light emitted from the light-emitting region is suppressed.
摘要:
A directional display device configured to display a plurality of directional images simultaneously is provided. The directional display device includes a liquid crystal panel having a liquid crystal layer and a light reflecting membrane arranged behind the liquid crystal layer. The liquid crystal panel is configured to form the plurality of images by using a plurality of pixel dots. The directional display device includes a barrier portion arranged in front of the liquid crystal panel. The barrier portion has a plurality of light shields and a plurality of apertures. Each of the apertures is arranged in such a way that one of the apertures is associated with n (an integer being no less than two) pixel dots if n images are displayed. Each of the light shields has behind thereof a luminescent layer for illuminating the liquid crystal panel.
摘要:
A reflective layer for reflecting light incident from a second substrate side and transmitting through a second electrode made of ITO or the like is formed above a first substrate, a switching element provided for each pixel, and an insulating film covering the switching element, the reflective layer being insulated from the switching element. A first electrode having a work function similar to the second electrode and made of a transparent conductive material such as ITO is formed more proximate to a liquid crystal layer than is the reflective layer and is connected to the switching element. The thickness of the first electrode is set to 100 Å or less or in a range approximately from 750 Å to 1250 Å. Alternatively, the switching element maybe connected to the reflective electrode, the first electrode and the reflective electrode which are formed with an insulating film therebetween may be capacitively coupled, and the first electrode may be driven by the reflective electrode via the capacitor.
摘要:
In an ECB LCD, in which a liquid crystal layer enclosed between a pair of substrates is driven based on R, G, B signals so that transmittance of R, G, B light components at the liquid crystal layer is controlled for color display, the voltage levels of the liquid crystal driving signals for R, G, B light are set such that the optimum transmittance, i.e., the maximum transmittance, can be achieved with respect to the R, G, B light components. With this arrangement, wavelength dependency, if any, of the liquid crystal with respect to the light coming into the light crystal layer can be modified so that color display is achieved with superior color reproducibility.