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Backlight unit for display device

A backlight and backlight display technology, applied in the field of display units and computer program products, can solve problems affecting battery life and power consumption

Inactive Publication Date: 2011-09-14
SONY ERICSSON MOBILE COMM AB
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The light-emitting elements in a backlit display unit are relatively power-intensive; therefore, the power consumption of a backlit display unit greatly affects the life of a battery in an electronic device and thus the frequency with which said battery is replaced or recharged

Method used

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  • Backlight unit for display device
  • Backlight unit for display device
  • Backlight unit for display device

Examples

Experimental program
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Embodiment Construction

[0017] figure 1 An electronic device 100 with a display unit 10 is shown. figure 1 The electronic device in is a mobile phone with housing 50 . The electronic device also includes a microphone 20 and a loudspeaker 30 as well as input means, such as the keys of a keyboard or keypad 40 . The number of keys shown is exemplary only; other numbers of keys are conceivable, such as 10 keys representing each number from 0 to 9, plus possibly some function keys, such as representing "on / off", " status", etc. Also, any other input means may be part of the mobile phone, such as a JogBall, joystick, soft keys, etc. Finally, the electronic device 100 includes a display unit 10 . The housing 50 has suitable openings for the display unit 10 , the microphone 20 , the speaker 30 and the keypad 40 at appropriate locations.

[0018] figure 2 shows a cross-section of the display unit 10, corresponding to the figure 1 The line II-II in the figure 1 A cross-section of the display unit 10 s...

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PUM

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Abstract

Electronic equipment such as CD or MP3 players, PDAs, organizers, mobile phones often contains a backlight display unit (10) which can be relatively power or energy consuming. This invention is related to reducing the power consumption of such backlight display units (10). This is performed by dividing the area of the backlight unit (10) up into segments (20a; 20b; 20c), where the intensity of light backlighting each such segment can be controlled separately. Thus, depending on the mode or application of the electronic equipment (100), only some parts of the display unit (10) are to be backlit, thereby reducing the energy consumption of the display unit (10) as a whole.

Description

technical field [0001] The invention relates to an electronic device comprising a display unit having an area and one or more light emitting elements arranged to backlight the area of ​​the display unit. The invention also relates to a display unit having an area and one or more light emitting elements arranged to backlight the area of ​​the display unit. Finally, the invention relates to a method of controlling a backlit display unit in an electronic device, said backlit display unit having an area and comprising one or more light-emitting elements arranged to backlight an area of ​​the display unit, and comprising means for performing said A computer program product of the software code portion of the method. Background technique [0002] Current portable or mobile electronic devices, such as laptop computers, portable CD or MP3 players, organizers, PDAs, mobile phones, etc., typically include rechargeable or replaceable batteries as an energy source. Furthermore, such e...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/34F21V14/00G02F1/13357
CPCG02F2001/133626G02F1/1336G09G2320/062G09G2330/021G02F2001/133601G09G3/342G02F1/133601G02F1/133626
Inventor M·伯格
Owner SONY ERICSSON MOBILE COMM AB
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