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Active-matrix type display device and an electronic apparatus having the same

A technology of display device and active matrix, which is applied in the direction of identification device, telephone structure, static indicator, etc., can solve problems such as influence and achieve the effect of stable operation

Active Publication Date: 2010-07-14
INNOLUX CORP
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0006] However, using the above-mentioned known DRAM (Dynamic Random Access Memory) circuit, the voltage value obtained by voltage detection will be affected by the characteristics (such as threshold voltage) of the element used as the voltage detection element

Method used

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  • Active-matrix type display device and an electronic apparatus having the same
  • Active-matrix type display device and an electronic apparatus having the same
  • Active-matrix type display device and an electronic apparatus having the same

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Embodiment Construction

[0047] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0048] figure 2 is an active matrix display device according to an embodiment of the present invention, and figure 2 The display device 1 shown has a display portion 10 , a source driver 20 , a gate driver 30 , a common driver 40 and a controller 50 .

[0049] Among them, the display unit 10 has a plurality of pixels 100 arranged in a matrix of rows and columns. source driver 20 through the source line S 1 ~S m It is connected to each pixel and supplies image data to each pixel in an analog or digital manner. gate driver 30 through the gate line G 1 ~G n Controls whether individual pixels are turned on or off. The common driver 40 passes through the common electrode line COM 1 ~COM n Connected to each pixel to change the common electrode line COM according to the driving state of each pixel 1 ~COM n potential. The controller 50 is used to syn...

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Abstract

The present invention is to provide an active-matrix type display device with its pixels being embedded with a memory, having the characteristic independent from the characteristic of the voltage detecting component and being operated stably, and an electronic apparatus having the aforementioned active-matrix type display device. These pixels each includes: a capacitor; a switching unit between the display unit and the capacitor, being turning on during the sampling period; and a voltage detecting circuit for detecting the voltage between the capacitor and the switching unit. Besides, the display unit also includes: a first capacitor voltage source connected to a terminal of the capacitor which is not connected to the voltage detecting circuit, and applying a predetermined voltage within the variation range of the voltage state of the display unit on the capacitor in the sampling period; and / or a second capacitor voltage source, being connected to a terminal of the display unit which is not connected to the switching unit, and applying a predetermined voltage within the variation range of the voltage state of the display unit on the display unit in the sampling period.

Description

technical field [0001] The present invention relates to an active matrix display device having a plurality of pixels arranged in a matrix of rows and columns, and an electronic device equipped with the same. Background technique [0002] In the known active matrix display device, regardless of the display mode of the dynamic picture or the still picture, the data is written into the pixels through the driver. In this case, when a still picture is displayed, the same data is always written in the pixels. Therefore, a memory is provided in each pixel so that when a still image is displayed, the data stored in the memory is written into the pixel instead of driving by the driver to reduce power consumption (for example, refer to Patent Document 1). This technology is generally called MIP (Memory In Pixel), that is, pixel memory technology. [0003] Generally, in the MIP technology, in order to keep the data stored in the memory of each pixel, DRAM (Dynamic Random Access Memor...

Claims

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Application Information

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IPC IPC(8): G09G3/20G09G3/32G09G3/36H04M1/02G06F1/16G09F9/30A63F13/00G02F1/133G09G3/3258G09G3/3275G09G3/3291
CPCG09G3/3648G09G2300/0852G09G3/20G09G2310/06G09G3/3225
Inventor 山下佳大朗
Owner INNOLUX CORP
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