Unlock instant, AI-driven research and patent intelligence for your innovation.

Color tunable OLED illumination display and method for controlled display illumination

A technology for color display and illumination light source, applied in the field of MINATIO through a combination of one OLED layer or two or more OLED layers, can solve the problems of inability to provide light intensity and color mixing

Inactive Publication Date: 2009-12-09
GENERAL ELECTRIC CO
View PDF6 Cites 23 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

These methods may not be able to provide the intensity and color mixing required to achieve the desired lighting effect

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Color tunable OLED illumination display and method for controlled display illumination
  • Color tunable OLED illumination display and method for controlled display illumination
  • Color tunable OLED illumination display and method for controlled display illumination

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0076] Made OLED lighting sources. The OLED lighting source comprises three physically and electrically modular OLED layers fabricated independently. Each OLED layer comprises a plurality of rectangular OLED elements electrically interconnected through a combination of series-parallel electrical connections. US 7,049,757 has described such a so-called fault-tolerant OLED construction and its method of manufacture.

[0077] The first OLED layer was fabricated on an ITO / PET substrate. The ITO layer was patterned using standard photolithography and wet etching methods to form a plurality of rectangular electrically insulating ITO elements disposed on a PET substrate. A PEDOT:PSS solution (obtained from H.C. Starck. Inc. under the trade name Bayton P VP CH 800) was spin-coated on top of the ITO pattern to form a continuous layer approximately 70 nm thick. A solution of the red-emitting polymer RP 145 obtained from the Dow Chemical Company was spin-coated on the substrate, formi...

Embodiment 2

[0082] Three different OLED lighting sources were manufactured by the same method as in Example 1. Three OLED devices had elements with dimensions of 1.25 cm x 0.3125 cm and were assembled into an illumination source as described above such that all three emitted colors were visible. according to Figure 5 In the configuration shown, a prismatic diffuser element is mounted on the illumination source. Varying the distance of the diffuser element from the illumination source, the distance at which visually uniform color and intensity is achieved is recorded and compared to the predicted data for complete blurring. Figure 10 is a graph of the minor dimension 754 of the element (in this case fixing the other dimension at 1.25 cm) versus the distance 752 of the diffusing element to produce uniform intensity and color in one embodiment of the invention. Figure 10 Good agreement between measured data 756 and predicted data 758 is shown and the diffusing element distance can be sh...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
color rendering indexaaaaaaaaaa
color rendering indexaaaaaaaaaa
color rendering indexaaaaaaaaaa
Login to View More

Abstract

A color display device is disclosed. The display includes a light modulating element and a color tunable OLED illumination source configured to illuminate the light modulating element, the illumination source comprising a plurality of OLED layers fabricated on different substrates and assembled in a stacked configuration, wherein each of the plurality of OLED layers comprises active light- emitting areas, alternating with inactive non-light emitting areas configured to transmit light emitted by underlying OLED layers. A method of illuminating a backlit display is also disclosed.

Description

[0001] Cross References to Related Applications [0002] This application is related to a concurrently filed US Patent Application (Attorney Docket No. 205594) entitled "COLOR TUNABLE ILLUMINATION SOURCE AND METHOD FOR CONTROLLED ILLUMINATION," which is hereby incorporated by reference in its entirety. Background of the invention [0003] The present invention generally relates to color display devices. The present invention particularly relates to OLED illuminated display devices. [0004] The emission color of traditional light sources such as incandescent light sources and fluorescent light sources falls within a predetermined spectral range, and the color of a single light source cannot be adjusted arbitrarily. In order to obtain a tunable light-emitting device, a large number of light sources must be assembled and the luminous intensity of these light sources must be controlled. This can result in impractical, bulky devices and the resulting colors are often spatially n...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34G02F1/13357G02F1/1335
CPCH01L25/048H01L2924/0002G02F1/133621G09G2310/0235H01L27/3211G09G3/3413G09G3/3426G02F1/133603G09G2320/0261H01L27/3204H01L27/3209H10K59/90H10K59/86H10K59/32H10K59/351H10K59/35H01L2924/00H10K2102/301
Inventor 斯维特拉纳·罗戈杰维克马克·M·迈耶斯阿尼尔·R·杜加尔古斯蒂诺·J·拉尼斯雅各布·C·博茨切尔迈克尔·S·赫佐格塔米·J·费尔克洛思
Owner GENERAL ELECTRIC CO