Abstract:
A pixel display configuration by providing a voltage controller (320) in each pixel control circuit (205) controlling the voltage inputted to the pixel electrodes (150). The controller (320) includes a function of multiplexing the volage input to the pixel electrode (150). The controller (320) having a delay element (310) connnected to the first and second swithcing stages for delaying a turning on of one stage after a turning off of another stage with sufficient delay for loading a predefined set of display data for preventing turning one of both the first and second switching stages. The rate of DC balancing can be increased to one KHZ and higher to mitigate the possiblity of DC offset effects and image sticking problems caused by slow DC balancing rates.
Abstract:
The present invention provides a digital backplane and various methods, systems and devices for controlling a digital backplane and light modulating elements. In some embodiments of the present invention, a recursive feedback method is used to control a digital backplane and/or light modulating elements and/or spatial light modulators.
Abstract:
Magnetoresistive random access memory (MRAM) is used to provide in-pixel memory circuits for display devices. A memory circuit (25) comprises two MRAMs (60, 62), each coupled to a respective input of a flip-flop circuit (64). A display device (1) is provided comprising a plurality of pixels (20) each associated with a memory circuit (25). A bit line (45) passes over and contacts a first MRAM (60) in a first direction and a second MRAM (62) in a second direction, the first and second directions being substantially opposite to each other. This provides opposite resistance states in the two MRAMs (60, 62). The bit line (45) does not pass over a word line (43), thereby avoiding or reducing overlap capacitance losses. The word line (43) is formed during a same masking stage as a gate line (44). The bit line (45) is formed during a same masking stage as a column line (54).
Abstract:
A liquid crystal display device which eliminates the influence of the pixel potential in write of data to a memory section and can have a large margin for the variation in the characteristics of the transistors constituting the pixel circuit and a portable terminal comprising this display device. A pixel circuit having a memory circuit 25 has two different paths: one used for write of image data from a signal line 16-i via a data write switch 24 to the memory circuit 25, and the other for read of image data held by the memory circuit 25 via a data read switch 27 to a liquid crystal cell section. Image data is read through a data read buffer 26, and the image data is written to the memory section with no influence of the pixel potential on the held data in the memory circuit 25. This make it possible for the liquid display device to have a large margin for the variation in the characteristics of the transistors constituting the pixel circuit. Therefore, the variation in image quality due to the variation in transistor characteristics is eliminated.
Abstract:
An image generation system is provided. A display matrix (12) is provided and has a plurality of display elements (14) which can include liquid crystal. Each display element (14) includes a pixel (16). A plurality of display circuits (18) are electrically connected to a display element. A plurality of memory cells (20A, 20B) are associated with each of the circuit. A selector (21) is used to select the pixel data from one memory cell at a time.
Abstract:
An active matrix device includes a plurality of display elements 10 including a data storage node 18, 72 for storing data in the form of charge on a capacitor 72 and/or capacitative element 18. Refresh circuitry 51 is provided to refresh the data storage node, for example including temporary storage circuit 55 and drive circuit 56.
Abstract:
An image generation system is provided. A display matrix (12) is provided and has a plurality of display elements (14) which can include liquid crystal. Each display element (14) includes a pixel (16). A plurality of display circuits (18) are electrically connected to a display element. A plurality of memory cells (20A, 20B) are associated with each of the circuit. A selector (21) is used to select the pixel data from one memory cell at a time.
Abstract:
A substrate for an electrooptic device comprises a signal electrode, a first sample-and-hold circuit connected electrically with the signal electrode, a second sample-and-hold circuit connected electrically with the signal electrode, a pixel driver circuit, and pixel electrodes connected electrically with the pixel driver circuit. When a signal belonging to the (N+1)th image is applied to the signal electrode, the pixel driver circuit applies voltage to the pixel electrode for a first predetermined period based on the signal belonging to Nth image stored in the first sample-and-hold circuit. In the first predetermined period, the second sample-and-hold circuit stores the signal belonging to the (N+1)th image. When a signal belonging to the (N+2)th image is applied to the signal electrode, the pixel driver circuit applies voltage to the pixel electrode for a second predetermined period based on the signal belonging to (N+1)th image stored in the second sample-and-hold circuit. In the second predetermined period, the first sample-and-hold circuit stores the signal belonging to the (N+2)th image.
Abstract:
A display driver circuit (1100) includes a word line sequencer for providing a series of row addresses, and a row decoder (504) for decoding each of the row addresses and asserting write signals on corresponding ones of a plurality of output terminals. An optional data path sequencer (802) provides a series of path addresses which are used by an optional data router (804) to route data to particular sub-rows of display (1102). Additionally, an optional sub-row sequencer (1106) provides a series of sub-row addresses to an optional sub-row decoder (1108), which decodes each of the sub-row addresses and asserts write signals on corresponding ones of a second plurality of output terminals. In various embodiments, the row sequencer (506), the sub-row sequencer (1106), and/or the data path sequencer (802) is/are responsive to data load instructions from a system, such that no Array Write commands are required to write data to a display (1102).