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Active matrix display device and electronic equipment

A display device, active matrix technology, applied in static indicators, instruments, etc., to achieve the effect of low energy consumption

Active Publication Date: 2014-10-08
INNOLUX CORP +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this way, since the common electrode is an electrode common to all display devices, power consumption caused by alternation of common electrodes becomes a problem.

Method used

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  • Active matrix display device and electronic equipment
  • Active matrix display device and electronic equipment
  • Active matrix display device and electronic equipment

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0038] Preferred embodiments of the present invention will be described below with reference to the accompanying drawings.

[0039] [Structure of display device]

[0040] figure 1 is an active matrix display device illustrating an embodiment of the present invention. figure 1 The display device 100 includes a display panel 10 , a source driver 20 , a gate driver 30 , a voltage supply unit 40 , and a controller 50 .

[0041] The display panel 10 has a plurality of pixels 100 arranged in a matrix of rows and columns. The source driver 20 supplies image data to each pixel 100 through data lines (generally, also referred to as “source lines”) Data_1 to Data_m. The gate driver 30 controls each pixel 100 through write lines (generally, also referred to as “gate lines”) Write_1˜Write_n. The voltage supply unit 40 is respectively connected to the pixels 100 through the voltage supply lines CS_1 to CS_n, and supplies a predetermined voltage to each pixel according to the driving st...

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PUM

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Abstract

The present invention provides an active matrix display device that has an internal memory circuit of a pixel and realizes low energy consumption. The plurality of pixels arranged in a matrix of rows and columns include display elements, control switches, storage capacitors, and storage circuits. Wherein, the display element includes a first terminal and a second terminal, and the second terminal is connected to a fixed potential. The control switch controls the supply of image data to the first terminal of the display element. The storage capacitor includes a first terminal and a second terminal. The first terminal is connected to the first terminal of the display element to store image data supplied to the display element by controlling the switch. The storage circuit stores the voltage state of the first terminal of the display element. This display device has a voltage supply unit that supplies a voltage that changes in two or more stages to the second terminal of the storage capacitor while performing a refresh operation of the storage circuit.

Description

technical field [0001] The present invention relates to an active matrix display device with a plurality of pixels arranged in a matrix of rows and columns and an electronic device with the active matrix display device. Background technique [0002] In a known active matrix display device, regardless of the display mode of a dynamic image or a static image, data is also written to the pixels by a driver. In this case, when displaying a still image, the same data is often written to the pixels. Therefore, a method is proposed in which a memory is provided in each pixel, and the data stored in the memory is written in when a static image is displayed, and the drive of the driver is stopped to reduce power consumption. This technique is generally referred to as a memory in pixel (MIP). [0003] Generally speaking, in the MIP technology, in order to store the data stored in the memory of each pixel, a Dynamic Random Access Memory (DRAM) or a Static Random Access Memory (SRAM) ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/20G09G3/32G09G3/36
Inventor 桥本和幸
Owner INNOLUX CORP