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Display device, method of driving the display device, and electronic device

A technology for display devices and display parts, applied in static indicators, instruments, etc., can solve problems such as screen uniformity loss, and achieve the effect of low power consumption

Inactive Publication Date: 2011-05-25
SONY CORP
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

As a result, even if the same voltage is applied to the respective gates of TFTs, the luminance of light emission varies among the respective organic EL elements, which leads to loss of screen uniformity

Method used

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  • Display device, method of driving the display device, and electronic device
  • Display device, method of driving the display device, and electronic device
  • Display device, method of driving the display device, and electronic device

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0034] Schematic configuration of the display device

[0035] figure 1 A schematic configuration of a display device 1 according to an embodiment of the present invention is shown. The display device 1 includes a display panel 10 (display section) and a drive circuit 20 (drive section). The display panel 10 has, for example, a pixel circuit array section 13 having a plurality of organic EL elements 11R, 11G, and 11B (light emitting elements) arranged in a two-dimensional manner. In the present embodiment, for example, three organic EL elements 11R, 11G, and 11B adjacent to each other constitute one pixel 12 . Hereinafter, the term organic EL element 11 is appropriately used as a generic term for the organic EL elements 11R, 11G, and 11B. The drive circuit 20 drives the pixel circuit array section 13 , and it has, for example, a video signal processing circuit 21 , a timing generator circuit 22 , a signal line drive circuit 23 , a write line drive circuit 24 , and a power su...

application example 1

[0081] Figure 7 The appearance of a television set using the display device 1 according to the present embodiment is shown. This television set has, for example, an image display screen 300 including a front panel 310 and a filter 320, and the image display screen 300 is configured by the display device 1 according to the present embodiment.

application example 2

[0083] Figure 8A and 8B The appearance of a digital camera using the display device 1 according to the present embodiment is shown. The digital camera has, for example, a light emitting section 410 for flash, a display 420, a menu switch 430, and a shutter button 440, and the display 420 is configured by the display device 1 according to the present embodiment.

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PUM

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Abstract

A display device, which may achieve low power consumption without disturbing high resolution, a method of driving the display device, and an electronic device having the display device are provided. The display device includes: a display section having sets of light emitting elements and pixel circuits arranged two-dimensionally; and a drive section driving each of the pixel circuits based on a video signal. The pixel circuit has a dual-gate first transistor having a first gate and a second gate and controlling electric current flowing into each of the light emitting elements, and a second transistor writing a signal voltage into the first gate in accordance with the video signal. The drive section applies the signal voltage to the pixel circuit such that at least part of values of gate-to-source voltage of the first transistor in a usable range is 5 V or lower.

Description

technical field [0001] The present invention relates to a display device that displays an image by light emitting elements arranged for respective pixels, a method of driving the display device, and an electronic device having the display device. Background technique [0002] Recently, a display device using a current-driven type optical element as a light-emitting element of a pixel based on an inflow optical element (for example, organic EL (Electro Luminance, electroluminescent (Electroluminescent) element) value of the current changes in the luminous brightness. [0003] An organic EL element is a self-luminous element different from a liquid crystal element or the like. Therefore, a display device using an organic EL element (organic EL display device) does not require a light source (backlight), and thus has high image visibility, low power consumption, and high response speed compared to a liquid crystal display device that requires a light source. [0004] As in li...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/32
CPCG09G2300/0465G09G2300/0842G09G2300/0866G09G3/3233G09G2300/0819G09G2320/0606
Inventor 山下淳一内野胜秀
Owner SONY CORP