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Apparatus and method for driving display panel

A technology of a display panel and a display device, applied in the field of drivers, can solve the problem of not increasing the life of the display and the like

Inactive Publication Date: 2009-08-05
KONINK PHILIPS ELECTRONICS NV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

While prior art provides aging-invariant performance of pixels, it does not increase display lifetime

Method used

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  • Apparatus and method for driving display panel
  • Apparatus and method for driving display panel
  • Apparatus and method for driving display panel

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0021] figure 1 A display device with a display panel including light emitting elements is schematically shown. figure 1 Only four pixels 10 of the matrix display panel 1 are shown. In actual implementation, the matrix display panel 1 may have more pixels 10 . The pixels 10 may not be arranged in a matrix structure. But for ease of illustration, a matrix display is discussed below. Each pixel 10 includes a light emitting diode, further referred to as LED PL1 or PL2, respectively, and a pixel driver circuit PD1 or PD2, respectively. For example, LEDs PL1 and PL2 may be inorganic electroluminescent (EL) devices, cold cathodes, or organic LEDs like polymer or small molecule LEDs. Normally, LEDs PL1 and PL2 emit light of different colors, obtaining a multicolor display. In a full-color display, at least three different LEDs emit the three primary colors, usually red, green and blue. However, other primary colors may also be utilized. It is also possible to combine more than...

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PUM

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Abstract

The drivers (DD, SD, PD1, PD2) drive a display panel comprising a first group of light emitting elements (PL1) and a second group of light emitting elements (PL2). The drivers (DD, SD, PD1, PD2) include a data driver (DD), which receives a first set of input image signals (R) representing a first color, and supplies the first set of data signals (RD1) to the first set of Light emitting element (PL1). The data driver (DD) further receives a second set of input image signals (B) representing a second color, and supplies the second set of data signals (BD1) to the second set of light emitting elements (PL2), respectively. A low pass filter (LPF) is provided for obtaining a second set of data signals (BD1) having a bandwidth smaller than that of the first set of data signals (RD1).

Description

field of invention [0001] The invention relates to a driver for an electroluminescent display panel, a display module including the electroluminescent display panel and the driver, a display device including the display module and a method for driving the electroluminescent display. Background of the invention [0002] US6441560B1 discloses an active matrix display device, which includes an array of display pixels (also referred to as pixels), each pixel including an electroluminescence display element and a pixel driving circuit. The pixel driver circuit controls the current through the display element based on a drive signal applied to the pixel during the addressing period, which is stored as a voltage on a storage capacitor connected to the pixel driver circuit. Each pixel includes an electro-optic conditioning circuit that responds to the light generated by the display element during addressing, and which, during the addressing period, modifies the voltage signal stored...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/32G09G3/22
CPCG09G2300/0842G09G2320/066G09G2320/043G09G3/3225G09G3/3233G09G2320/0276G09G3/22G09G3/30G09G3/32H05B33/12G09G3/20
Inventor J·霍彭布罗沃斯F·布德泽拉阿M·A·克洛彭豪沃P·范德维杰N·范德瓦尔特G·赫克斯特拉N·科尔德斯
Owner KONINK PHILIPS ELECTRONICS NV