Abstract:
A display device for use on an opaque substrate (31) is disclosed. The device includes an organic light emitting diode device (33) located on the opaque substrate (31). The opaque substrate (31) includes an integrated circuit chip. The organic light emitting diode device (33) includes an opaque bottom electrode (32), an organic stack (33), and a transparent top electrode (32). The opaque bottom electrode (32) is reflective and is located on the opaque substrate (31).
Abstract:
An active matrix display device is disclosed. The display includes individual driver circuits for each pixel (100) to provide accurate, high resolution gray scale rendering and an almost 100 % duty cycle. The pixel circuit drivers (Figures 1(10), 2(20), 3(30), 4(40), 5(50), 6(60), 7(70) and 8(80)) minimize factors known to limit gray scale resolution, such as variations in threshold voltage, voltage drops in connecting lines and from leakage currents, and large peak currents. The present invention includes a line driver functioning initially as a low impedance voltage driver (Figure 6(60)), then converting to a high impedance current driver (Figure 6(60)). A method of driving a pixel (100) with sufficient circuitry to substain the pixel's light output at a gray level determined by the input data fed to the pixel (100) is also disclosed. The display is capable of processing both digital and anolog input data.
Abstract:
A light emitting device (1) comprises a plurality of stacked organic light emitting devices (10, 20, 30) which are arranged in a stack. The light emitting device (1) further includes a controller (3) for controlling the operation of each of the plurality of organic light emitting devices (10, 20, 30) in the stack. The controller (3) simultaneously supplies the same current to each of the organic light emitting devices (10, 20, 30) in the stack as well as to each of the plurality of organic light emitting devices (1).
Abstract:
A light emitting device (1) comprises a plurality of stacked organic light emitting devices (10, 20, 30) which are arranged in a stack. The light emitting device (1) further includes a controller (3) for controlling the operation of each of the plurality of organic light emitting devices (10, 20, 30) in the stack. The controller (3) simultaneously supplies the same current to each of the organic light emitting devices (10, 20, 30) in the stack as well as to each of the plurality of organic light emitting devices (1).
Abstract:
A sealing structure (190) for an organic light emitting device display (100). The sealing structure (190) comprises a metal film (175) overlying a dielectric film (150). The sealing structure (190) has low moisture and oxygen permeability. At least one of the metal layers (175) may react with moisture or oxygen to seal off pin holes. A net low stress sealing structure (190) may be formed by combining tensile and compressive films. The sealing structure (190) may be etched to create openings (160) for connection to outside circuitry. The innovative sealing structure (190) minimizes moisture leakage and vertical shorts between diode cathode (900) and anode (400).
Abstract:
The invention is directed to an electrode structure (500) for an organic lightemitting device display (10). The electrode structure includes a transparent electrode (510) and a high conductivity rib (550). The structure (500) provides top side light output and a low line resistance, and enables a high resolution display. The structure permits a display to be built on top of a silicon driver chip for active matrix addressing.