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Display monitoring systems

A display and device technology, applied in the field of OLED displays, can solve problems such as increasing display manufacturing costs

Inactive Publication Date: 2012-03-07
CAMBRIDGE DISPLAY TECH LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, this has the disadvantage of requiring a large charger at least the size of the display
However, it has the disadvantage of increasing the manufacturing cost of the display

Method used

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  • Display monitoring systems
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Examples

Experimental program
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Embodiment Construction

[0019] Figure 1a An example of a clamshell mobile communication device 100 is shown comprising hinged portions 100a, 100b, one of which contains a display 102 and the other contains a keypad 104. Two alternate sensor positions 106a, 106b are indicated, sensor 106b having a fiber optic light guide 108 from the keyboard portion of the device. It can be seen that when the clamshell is closed, light from the display 102 can be detected by the sensor 106, such as a photodiode.

[0020] Figure 1b A second example of a mobile communication device 110 is shown in which a keypad and display are mounted in a first part 110a of the device and a second flipped down part 110b provides a microphone or sound reflector. exist Figure 1b In the example of , a sensor 112 is mounted in part 110a and a fiber optic connection 114 is provided to part 110b to sense light from the display when the device is not in use.

[0021] Figure 2a A vertical cross-section through the keyboard 104 is sho...

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PUM

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Abstract

The present invention is generally concerned with systems and methods for monitoring displays, in particular OLED (Organic Light Emitting Diode) displays.A consumer electronic device (CED) having a display and including at least one light sensor for recalibrating said display at intervals, wherein said display and said at least one light sensor are mounted within different parts of a unitary housing such that when said CED is not in use said light sensor is able to monitor light from said display. Preferably the different parts of the unitary housing comprise two hinged parts, one mounting the display, the other at least a light sensing portion of the sensor.

Description

technical field [0001] The present invention generally relates to systems and methods for monitoring displays, particularly OLED (Organic Light Emitting Diode) displays. Background technique [0002] One problem with displays in general, and OLEDs in particular, is the unequal aging of the pixels of the display. Thus, "screen burn" was a feature of early computer systems' CRT-based monitors. In computers, the use of screen savers has reduced the effect of screen burn, but depending on the application, such techniques are not always applicable. Furthermore, a particular problem arises in color OLED displays where pixels of different colors may often age at different rates. In this specification, the generic term "pixel" is also used to denote differently colored sub-pixels of a color display. [0003] A technique for reducing non-uniformity in OLED displays is described in WO 2005 / 069259. It describes an arrangement in which the portable device is monitored by a light sen...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32G09G3/20
CPCG09G3/3208G09G2320/043G09G3/20H01L2924/12044Y02B20/30
Inventor E·史密斯J·波罗格斯
Owner CAMBRIDGE DISPLAY TECH LTD