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Display device and uses thereof

A display device and component technology, applied in photovoltaic power generation, electrical components, electric solid-state devices, etc., can solve problems such as replacement and unusable batteries

Inactive Publication Date: 2009-07-15
THOMSON LICENSING SA
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, after a certain number of recharges, the battery is no longer usable and must be replaced

Method used

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  • Display device and uses thereof
  • Display device and uses thereof
  • Display device and uses thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] figure 1 A display device 2 according to a first embodiment of the present invention is shown.

[0022] Such display devices are known as active matrix. It comprises: a plurality of light emitters 4 forming a network of rows and columns; emitter power supply means 6; and light emitting control means 8 of the emitters. For simplification purposes, figure 1 A single transmitter 4, a single power supply unit 6, and part of a control unit 8 are shown in .

[0023] The emitter 4 of the display device is an organic light-emitting diode commonly known by the acronym OLED. An organic light emitting diode includes an anode and a cathode. Each organic light emitting diode is associated with a pixel when the display device is monochrome, and with a subpixel when the display device is multicolor. An organic light emitting diode is adapted to emit a light intensity that is directly proportional to the current flowing through the organic light emitting diode.

[0024] The power...

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PUM

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Abstract

The invention relates to a display device (2) comprising at least one light transmitter (4), supply means (6) for supplying electrical energy to each transmitter (4), and means (24) for detecting the irradiance of the ambient light radiation (29). The detection means (24) can also capture the ambient light radiation (29), convert it into electrical energy, and supply each transmitter (4) in order to increase the brightness level of each transmitter (4) according to the irradiance of the ambient light radiation (29). The invention relates to any display system which is subjected to illumination variations but must ensure readability, such as computers, traffic lights or the like.

Description

technical field [0001] The present invention relates to a display device comprising: at least one light element or pixel; power supply means adapted to supply electrical energy to the or each element, the light from each or each element being determined according to of the electrical energy supplied to each or each element; and means for detecting the irradiance of ambient light, wherein each or each element can be supplied with a specific electrical energy that varies according to the irradiance of ambient light. Background technique [0002] A display device is known comprising: a light emitter powered by a battery; suitable photodiodes for detecting the irradiance of ambient light; and control means capable of controlling the battery so that when the irradiance of ambient light is higher than a predetermined Increases the amount of electrical energy that powers the emitter when set to . [0003] Existing devices are known from documents US6028327 or US2005 / 0260777. [0...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01L27/32
CPCH01L27/3244H01L27/3227H01L27/3269Y02E10/50H10K59/60H10K59/13H01L31/09H01L31/04H10K59/12
Inventor 戴维·沃弗里菲利普·勒罗伊克里斯托弗·普拉特
Owner THOMSON LICENSING SA