Abstract:
A device structure for single cell gap reflective and transflective liquid crystal displays (TF-LCDs). For an entirely reflective LCD, the imbedded wire-grid polarizer (WGP) (22) serves as a polarization-dependent for the ambient light. For a transflective TF-LCD, the WGP only covers the reflective pixels (24). The disclosure also includes a method of using single cell gap liquid crystal displays (LCDs) without phase retardation films by providing a single cell gap LCD having reflective pixels (24) and transmissive pixels, covering solely the reflective pixels, with at least one of: a wire grid polarizer (22) and a broadband chlolesteric reflector (BCR), reflecting ambient light off the reflective pixels; and passing back light through the transmissive pixels whereby the cell gap LCD obtains high contrast ratios without using phase retardation films.
Abstract:
Systems, methods, apparatus and devices for head mounted stereoscopic 3-D display devices using the tunable focus liquid crystal micro-lens array eye to produce eye accommodation information. A liquid crystal display panel displays stereoscopic images and uses tunable liquid crystal micro-lens array to change the diopter of the display pixels to provide eye accommodation information. The head mounted display device includes a planar display screen, planar tunable liquid crystal micro-lens array and planar black mask. The display device may optionally include a bias lens. In an embodiment, the display device also includes a backlight and a prism sheet for displaying the images on the display screen. The display screen, tunable liquid crystal micro-lens array, black mask and optional backlight and prism may be flat or curved.
Abstract:
A liquid crystal display having a positive A-film and a negative A-film between a top polarizer and a bottom polarizer to increase the viewing angle of the liquid crystal display by reducing or eliminating light leakage at voltage-off state when viewed from an oblique angle. Method of increasing the viewing angle of the liquid crystal display by reducing or eliminating light leakage at voltage-off stage when viewed from an oblique angle. The compensation is applicable to use with liquid crystal displays having a liquid crystal layer that is homogenously aligned at off-state when no voltage is applied to the liquid crystal layer, such as IPS and FFS mode liquid crystal displays.
Abstract:
Transflective twisted nematic (TN) liquid crystal displays(LCDs) having enhanced transmission efficiencies. Due to the use of circularly polarized light, the novel TN transflective LCD uses a new operation mode between the conventional First and Second Minimums, which alters the retardation value of the reflection and the transmission portions, where the retardation values each include a cell gap spacing. This results in the cell gap spacing in the transmission portion of the transflective LCD to be approximately triple the cell gap spacing in the reflection portion of the transflective LCD whereby the transmission efficiency increases to approximately 90 percent.
Abstract:
Single cell gap transflective liquid crystal display which provides that the backlight traverses the reflective pixel portion twice and thereby follows a path similar to that of the ambient light. A slant reflector is built on the path of the backlight to reflect the transmitted light to the reflective portion so that the backlight and ambient light follow similar paths.
Abstract:
A high reflection and transmission transflective liquid crystal display (TLCD) that requires only a single cell gap (40). Instead of reducing the cell gap of the reflective (R) sub-pixel region, the invention reduces the birefringence change Δd of reflective pixels (R) (42) so that the total retardation change Δd of R is equal to that of the transmissive pixels (T). This is realized by a partial switching of the pixels of approximately 45 degrees which occurs in the reflective pixel(R) region (42) of the single cell gap (40) by applying fringing fields, generated by a discontinuous electrode, to the molecules (44) in the reflective pixel(R) region (42) of the cell gap (40).
Abstract:
PROBLEM TO BE SOLVED: To provide an electrostatic discharge protective device. SOLUTION: When a shock of an electrostatic charge is generated, since the electrostatic discharge protective device has characteristics that reaction is fast and acceptability is high, the electrostatic discharge protective device is not damaged even if the shock of a larger quantity of an electrostatic discharge current is generated. In addition, a structure that diodes 155, 165 and metal-oxide-semiconductor transistors 150, 160 are arranged in parallel is simultaneously formed on a structural face of the electrostatic discharge protective device, making use of arrangement areas of the metal-oxide-semiconductor transistors 150, 160, by which the arrangement areas of the elements are reduced. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To realize a multi-screen display of a portable electronics in a small circuit scale and at a low cost. SOLUTION: A multi-screen control device is used in electronics. The multi-screen driving device comprises a control part, one application-specific integrated circuit, and a first and a second screens. The control part is used for outputting plural display data including a first display data and a second display data, and additionally outputting a set of the control signals. The application-specific integrated circuit is connected with the control part and identifies plural display data as the first or the second display data in response to a set of the control signals. The first and the second screens are both connected to the application-specific integrated circuit to display the first and the second display data, respectively. COPYRIGHT: (C)2004,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an active matrix display device having a simplified circuit constitution and its switching signal generator. SOLUTION: The switching signal generators 24, 25 contain at least one delay device connected with a plurality of switches of the active matrix display device. The delay device is composed of a number of delay units connected in series H1-Hn, I1-Im in order to receive a source switching signal St and generate a plurality of target switching signals S1-Sn, T1-Tm controlling the plurality of switches while allowing the target switching signals to correspond to the source switching signal St. A specified phase deviation is formed between every two succeeding target switching signals in such a manner that a plurality of the switches are turned on one by one with a constant interval. COPYRIGHT: (C)2004,JPO
Abstract:
PROBLEM TO BE SOLVED: To provide a memory capacitor structure increasing the capacitance without reducing the area of a light transmission region in an active matrix of a flat panel display, and a method for forming the memory capacitor structure. SOLUTION: The memory capacitor structure includes a lower electrode layer having a ruggedness structure on the upper surface, a dielectric layer coating the upper surface of the lower electrode layer and an upper electrode layer coating the upper part of the dielectric layer. The method for forming the memory capacitor structure is characterized by carrying out a step to provide a substrate, a step to form the lower electrode layer having the ruggedness structure on the upper surface of the substrate, a step to coat the upper surface of the lower electrode layer with the dielectric layer and a step to coat the upper surface of the dielectric layer with the upper electrode layer. COPYRIGHT: (C)2004,JPO