摘要:
A semiconductor die package is disclosed. In one embodiment, the semiconductor die package has a substrate. It includes (i) a lead frame structure including a die attach region with a die attach surface and a lead having a lead surface, and (ii) a molding material. The die attach surface and the lead surface are exposed through the molding material. A semiconductor die is on the die attach region, and the semiconductor die is electrically coupled to the lead.
摘要:
A reflection type liquid crystal display device having excellent display capability even if the number of the photolithography process is reduced and a process for producing the device. A process includes the steps of (a) forming a source/drain wiring by using a first mask; (b) forming a thin film transistor region and gate wiring by using a second mask; (c) forming an opening for a transistor, in a passivation film by using a third mask; (d) forming a rough surface of the interlayer insulating film and to form an opening for the transistor by using a fourth mask by halftone exposure, and (e) forming a reflective metal which extend through the respective openings for the transistor in the passivation film and the interlayer insulating film so that it is electrically connected to the source wiring by using a fifth mask.
摘要:
An in-plane-switching-mode (IPS) LCD device includes a TFT substrate and a CF substrate sandwiching therebetween an LC layer, and a pair of polarizing films sandwiching therebetween the substrates and the LC layer. Each polarizing film has a polarization layer and a protective layer An optical compensation layer having a birefringence is disposed between the light-emitting-side polarizing film and the CF substrate. The optical compensation layer has an in-plane retardation of N1 satisfying the following relationship: 83.050−0.810×D1≦N1≦−228.090−0.74D1 in the range of 0≦D1≦80 μm, wherein D1 is the thickness of the protective layer of the light-incident-side polarizing film.
摘要:
In order to improve processing steps of fabricating an active-matrix addressed reflective liquid crystal display, a lower substrate, which is positioned at one side with respect to a liquid crystal layer, is provided with two electrodes in parallel with each other and in parallel with the liquid crystal layer. One of the two electrodes is electrically coupled to a source electrode of a switching element assigned to one pixel, and the other electrode is electrically couple to a constant potential source. Each of the two electrodes has characteristics of light reflectivity, which is able to reduce the intensity of exposing light when an insulating layer provided above the electrodes is patterned.
摘要:
A semi-transmission type liquid crystal display that maximizes the luminance in reflection mode and transmission mode. The liquid crystal display comprises a lower substrate with thin film transistors, an opposite substrate facing the lower substrate, a liquid crystal layer between the lower substrate and the opposite substrate, a reflection electrode formed in a reflection area of the lower substrate, a transparent electrode formed in a transparent area of the lower substrate, a common electrode formed on the opposite substrate, and a drive circuit for applying a voltage between the reflection electrode and the transparent electrode and the common electrode. The potential difference between a drive voltage applied to that surface of the lower substrate which contacts the liquid crystal layer and a drive voltage applied to that surface of the opposite substrate which contacts the liquid crystal layer is lower in the transparent area than in the reflection area.
摘要:
In a liquid crystal display apparatus including two electrodes and a twisted-mode type liquid crystal layer inserted between the electrodes, an electric field in the liquid crystal layer between the electrodes is changed within one pixel, when a voltage is applied between the electrodes.
摘要:
In a reflective liquid crystal display comprising a first insulative plate having a reflector, a second insulative plate having a transparent electrode, and a liquid crystal layer sandwiched between the reflector and the transparent electrode, a convex-concave surface is provided at the side of the second insulative plate. With this arrangement, a desired light scattering characteristics is realized with a high image quality and a high brightness, with neither a fuzziness of displayed characters nor a double image. On the other hand, since no thin film transistor is formed at the side of the second insulative plate, the convex-concave surface can be simply formed with no necessity of depositing an insulating film covering the thin film transistor and patterning the deposited insulating film.
摘要:
The disclosed liquid crystal electrooptic memory device uses a ferroelectric liquid crystal sandwiched by a pair of molecular oriented films attached to opposite surfaces thereof, and a pair of transparent conductive films are attached to the outside surfaces of the molecular oriented films, respectively. An impedance having a constant electrostatic capacitance and a variable resistance is connected to one of the transparent conductive films. Further, an electric pulse source is connected across the transparent conductive films through the impedance. When a pulse from the pulse source is applied to the transparent conductive films, light transmittance of the ferroelectric liquid crystal is set at different levels depending on the resistance of the impedance. Thus, the resistance of the impedance is memorized in the form of the light transmittance of the ferroelectric liquid crystal. The impedance can be in the form of a photoconductive film attached to the molecular oriented film.
摘要:
A liquid crystal display device includes a first substrate, a second substrate, and a liquid crystal layer sandwiched between the first and second substrates. The first substrate includes first to N-th 1st retardation plates arranged on the first transparent substrate, and the second substrate includes first to N-th 2nd retardation plates arranged on the second transparent substrate. Assuming that a retardation plate among the first to N-th 1st retardation plates has an optical axis arranged at a first angle relative to a reference direction and a retardation plate among the first to N-th 2nd retardation plates, corresponding to the retardation plate among the first to N-th 1st retardation plates, has an optical axis arranged at a second angle relative to the reference direction, the first and second angles are different from each other by about 90 degrees.
摘要:
A LCD device has a LC layer sandwiched between a TFT substrate and a counter substrate, first and second polarizing films, a first λ/2 film between the first polarizing film and the counter substrate, and a second λ/2 film between the second polarizing film and the TFT substrate. Angle θ1 between the direction of the optical axis of the LC layer and the polarized direction of the light entering the LC layer satisfies the relationship: 0 degree