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Improved display device and method

A technology for display devices and display panels, applied in static indicators, instruments, etc., to solve problems such as wasting energy

Inactive Publication Date: 2010-01-13
TP VISION HLDG
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] However, when only a very small proportion of pixels are bright (in their transmissive state), as is usually the case, a correspondingly large proportion of the Light is blocked from reaching the viewer, thus wasting precious energy

Method used

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Embodiment Construction

[0049] In the following description, the invention is described with reference to a simplified display device comprising a transmissive LCD display panel in which each pixel consists of three sub-pixels with color filters and a segmented LED backlight , which respectively allow red light (R), green light (G) and blue light (B) to pass through, in the segmented LED backlight, each light-emitting element includes four LEDs of different colors (red (R), amber color (A), green (G) and blue (B)).

[0050] It should be noted that this in no way limits the scope of the present invention, which is equally applicable to a display device comprising another display panel and / or another lighting member. For example, in a segmented LED backlight, each light-emitting element can include three LEDs of different colors (red (R), green (G), and blue (B)), and in a transmissive LCD display panel , each pixel may include four sub-pixels with color filters that allow red (R), green (G), blue (B)...

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PUM

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Abstract

A display device (1) comprising an illuminating member (3) having a plurality of individually controllable light-emitting elements (5), a display panel (2) arranged to be illuminated by the illuminating member (3), the display panel comprising a plurality of individually controllable pixels (4a-d), and a display controller (6) adapted to receive image data (ID) indicative of a color image to be displayed by the display device (1). The display controller (6) is further adapted to individually control a color output of each light-emitting element (5) based on the received image data (ID). The performance of a display device having a controllable illuminating member, such as a backlight or a frontlight, can be considerably improved by individually controlling the color output, rather than merely the intensity,of the light-emitting members comprised in the controllable illuminating member.

Description

technical field [0001] The invention relates to a display device comprising a lighting member having a plurality of individually controllable light-emitting elements and a display panel arranged to be illuminated by the lighting member, the display panel comprising a plurality of individually controllable pixels . [0002] The invention also relates to a method and computer program modules for controlling such a display device. Background technique [0003] Currently, various types of flat panel displays are used in a variety of applications ranging from mobile phone displays to large screen televisions. While some kinds of flat-panel displays, such as so-called plasma displays, consist of arrays of light-emitting pixels, most flat-panel displays have arrays of pixels that can switch between several states but cannot emit light independently. Such flat panel displays include the ubiquitous LCD displays. In order for such a flat panel display to be able to display an image...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/34
CPCG09G2360/16G09G2320/0242G09G2320/062G09G3/342G09G2320/0646
Inventor M·P·C·M·克里恩F·皮尔曼M·J·J·贾克
Owner TP VISION HLDG