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Patent for Sale:

OLED Pixels for Manufacturing with Cost-Reduction Printing Process    

For manufacturing televisions with low-speed OLED transistors, multiple rows of pixels are enabled together with these transistors, but each individual row in the group is further selected with diode

Overview

It is widely recognized that using printing process to make televisions is much more cost-effective than using photolithography process. Such printing process, however, has not been widely adopted, because of the technology limitation that the printed transistors often do not have fast switching speed. This patent portfolio bypasses such technology limitation with newly redesigned television pixels.

With conventional technology, each row of pixels is selected sequentially to switch on their transistors. With our patented technology, multiple rows of pixels are grouped together and selected together to reduce the switching requirement of the transistors. For a television with 1024 rows refreshed at 60 Hertz, conventional technology requires a transistor be switched on within 16 microseconds. With our patented technology, the switching requirement of the transistor can be relaxed to 512 microseconds, when a group of 32 rows of pixels is selected together. Because of the less stringent requirement on the transistors, our patented technology creates the possibility of making televisions with significantly reduced cost, using organic transistors, on a flexible substrate, and manufactured by a roll-to-roll printing process. In addition, large size televisions can now be made with amorphous silicon transistors using low resolution shadow-mask technology.

Primary Application of the Technology

Low cost OLED television and display, manufactured by roll-to-roll printing process;
Low cost OLED display, manufactured with shadow mask.

The seller may consider selling these patents individually.

Patent Summary

U.S. Patent Classes & Classifications Covered in this listing:

Class 345: Computer Graphics Processing And Selective Visual Display Systems

Processes and apparatus for selective electrical control of two or more light-generating or light-controlling display elements* in accordance with a received or stored image data signal. The image data includes character, graphical information or display attribute data. The image data may include, for example, information data from a peripheral input device, from the reception of a television signal, from the recognition of image data, or from the generation or creation of image data by a computer.

Subclass 100: Particular row or column control (e.g., shift register)
Subclass 204: DISPLAY DRIVING CONTROL CIRCUITRY
Subclass 30: PLURAL PHYSICAL DISPLAY ELEMENT CONTROL SYSTEM (E.G., NON-CRT)
Subclass 38: Liquid crystal display segments
Subclass 76: Electroluminescent
Subclass 77: Brightness or intensity control
Subclass 78: Having compensating pulse
Subclass 81: Optical addressing (e.g., photodetection)
Subclass 82: Solid body light emitter (e.g., LED)
Subclass 87: Liquid crystal display elements (LCD)
Subclass 91: Diode or varistor
Subclass 92: Thin film tansistor (TFT)
Subclass 94: Waveform generation

Class 349: Liquid Crystal Cells, Elements And Systems

Cells, elements, and systems which include molecules of a material having both liquid and crystalline properties. Included in this class are those which have a significant liquid crystal cell detail or liquid crystal response or properties, and in which the liquid crystal controls or changes the optical properties of electromagnetic radiation such as direction, phase, amplitude, frequency, or polarization state. This class also provides for nominal manufacturing methods for producing significant liquid crystal cell structure.

Subclass 139: Electrode or bus detail (i.e., excluding supplemental capacitor and transistor electrodes)
Subclass 50: Diode

Class 315: Electric Lamp And Discharge Devices: Systems

Electric lamp and electric space discharge device systems: structural combinations with circuit elements; structural combinations with heating and/or cooling means; cathode-ray tubes; lamps and/or discharge devices as sole load devices; lamps; electric space discharge devices gas or vapor discharge devices; high vacuum-type discharge devices, and gas or vapor-type discharge devices claimed broadly; plural load device systems; art uses and combinations with art devices; testing electric lamps and discharge devices; and operating a lamp or a gas or vapor discharge device.

Subclass 169.3: Electroluminescent device