Abstract:
Display panel redundancy schemes and methods of operation are described. In an embodiment, and display panel includes an array of drivers (e.g. microdrivers), each of which including multiple portions to independently receive control and pixel bits. In an embodiment, each driver portion is to control a group of redundant emission elements.
Abstract:
This disclosure provides novel latching circuits, and pixel circuits and display devices that include such latching circuits. The latches herein include a switch positioned on an inverter coupling interconnect which couples two cross-coupled inverters of the latch. The switch is configured to control a passage of a current between the first and second inverters. By switching the switch OFF at a time a data voltage is transferred to the inverters, any leak current between the inverters can be interrupted. As a result, a malfunctioning of the data latch is prevented.
Abstract:
A display system comprises a display controller (24), a display unit (36), and a light source. The display controller (24) includes a processor unit, a memory device (10), a voltage source and, optionally, a light source control unit. The display unit (36) includes an array of pixel cells and circuitry to receive logic and control voltages and data and operate the display, a transparent counter electrode (140), and a liquid crystal layer (130) disposed between the transparent counter electrode (140) and the array of pixel cells. The pixel cell (1205) includes a storage element (1300), a DC balance control switch (1320), a pixel voltage override circuit, an inverter able to select between two voltages available to it, and a pixel electrode / mirror (1212). In different modes of operation the pixel mirror voltage may be determined by the storage element or by the pixel voltage override circuit. The display system may display images in one period and reset to a fixed state in another period.
Abstract:
A method of operating a display including loading image data to pixels in multiple rows of pixels in an array of pixels during a data loading phase, actuating the pixels in the multiple rows during an update phase, and illuminating at least one lamp during an lamp illumination phase to illuminate the actuated pixels to form an image on the display, in which the update phase overlaps with at least one of the loading and illumination phases partially in time.
Abstract:
Multiple grayscale image data is displayed efficiently. Image data is stored in a frame memory, and a predetermined bit of the image data is also stored in a pixel memory having a memory for each pixel. Video data in the pixel memory and video data in the frame memory (22) are exchanged using an input/output unit, to control display of an image in a pixel.
Abstract:
The aim of the invention is to reduce power consumption in an active matrix. type display device. A first drive transistor (2) and a second drive transistor (4) form a static memory. A data voltage from a data line (7) is input into the static memory via a gate transistor (5) and stored in the static memory. To the first and second driver transistors, first (1) and second (3) organic EL elements are connected, in which one of the first and second driver transistors is set capable of light emission and the other incapable of light emission. With this arrangement, light emission according to the data voltage is carried out.
Abstract:
An active matrix display device, wherein each pixel includes a plurality of selectable divided pixels, wherein each divided pixel has a 1-bit static data storage element and emits light based on supplied data; and the plurality of divided pixels each produces a weighted amount of light so that the selected divided pixels will cause a predetermined amount of light to be produced.
Abstract:
A novel method for asynchronously driving a display device including a plurality of pixels arranged in a plurality of columns and a plurality of rows includes the steps of receiving a first multi-bit data word indicative of a first grayscale value to be displayed on a pixel of a first row of the display, defining a first time period during which an electrical signal corresponding to the first grayscale value can be asserted on the pixel of said first row, receiving a second multi-bit data word indicative of a second grayscale value to be displayed on a pixel of a second row of the display, and defining a second time period that is temporally offset from the first time period during which an electrical signal corresponding to the second grayscale value can be asserted on the pixel of said second row. A novel display driver for performing the methods of the present invention is also disclosed.