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Driver device, driving method, and display device

The technology of a driving device and driving method, which is applied in the direction of static indicators, instruments, electrical components, etc., can solve the problems of insufficient capacity, reduced charging rate of pixel electrodes, insufficient charging of pixel electrodes, etc., and achieve the goal of reducing load and increasing aperture ratio Effect

Inactive Publication Date: 2013-11-20
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, there arises a problem that the charging rate of the pixel electrode decreases, and the pixel electrode is insufficiently charged.
This is due to the fact that the capability of the TFT that energizes the source terminal and the drain terminal will be insufficient since the arrival voltage of the gate terminal does not reach Vgh

Method used

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  • Driver device, driving method, and display device
  • Driver device, driving method, and display device
  • Driver device, driving method, and display device

Examples

Experimental program
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Effect test

Embodiment approach 1

[0067] refer to Figure 1 to Figure 7 A driving device according to an embodiment of the present invention, a display device including the driving device, and a driving method thereof will be described. However, the configurations described in this embodiment are not intended to limit the scope of the present invention, but are merely illustrative examples, unless there are particularly specific descriptions.

[0068] (Configuration of display device)

[0069] refer to Figure 1 to Figure 3 The display device of this embodiment will be described. First refer to figure 1 The configuration of the display device 1 of this embodiment will be described. figure 1 It is a block diagram showing the main configuration of the display device 1 of the present embodiment.

[0070] Such as figure 1 As shown, the display device 1 includes: a driving device 10 including a timing control circuit 11 , a scanning line driving circuit 12 , and a video signal line driving circuit 13 ; a pow...

Embodiment approach 2

[0135] In Embodiment 1, the first scan of the n+1th scan line 151 is performed overlapping the scan of the nth scan line 151, and the n+th scan is performed when the scan of the nth scan line 151 ends. The configuration of the second scan of one scan line 151 has been described as an example, but the present invention is not limited thereto. For example, the first scan of the n+m (wherein, m is an integer other than 0) scan line 151 may be overlapped with the scan of the n scan line 151, and when the scan of the n scan line 151 ends At this point in time, the second scan of the (n+m) scan line 151 is performed.

[0136] refer to Figure 9 The case where m=2 in this embodiment will be described. Figure 9 It is a timing chart showing the relationship between the scan signal and the video signal in the second embodiment.

[0137] Such as Figure 9 As shown, the scanning line driving circuit 12 overlaps the scanning signal Gn scanning the nth scanning line 151 and executes th...

Embodiment approach 3

[0140] In Embodiment 1, a configuration in which the first scanning of the n+1-th scanning line 151 is performed overlapping with the scanning of the n-th scanning line 151 regardless of the polarity of the video signal has been described as an example. The present invention is not limited thereto. For example, a configuration may be adopted in which the first scan is executed only when the polarity of the supplied video signal is reversed.

[0141] refer to Figure 10 In this embodiment, when the polarity of the supplied video signal is reversed, the first scan is performed overlapping with the scan of the n-th scanning line, and when the polarity of the video signal is not reversed, from When the scanning of the n-th scanning line ends, only the second scanning is performed. Figure 10 It is a timing chart showing the relationship between the scan signal and the video signal in this embodiment.

[0142] Such as Figure 10 As shown, the polarity of the video signal S1 sup...

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Abstract

An objective of the present invention is to provide a driver device whereby cost increases and aperture ratio declines are alleviated and it is possible to avoid inadequate charging of pixel electrodes even when it becomes necessary to charge the pixel electrodes rapidly. A driver device (10) according to the present invention comprises: a scan line drive circuit (12) which, between scan intervals in which an nth scan line (Gn) is scanned, executes a first scan which commences a supply of a scan signal, having an intermediate potential (Vgl') between a low-level voltage (Vgl) and a high-level voltage (Vgh) with respect to an n+mth scan line (G(n+1)) in an interval wherein a scan line is not scanned, and which ends a scan at the intermediate potential (Vgl') of the n+mth scan line (G(n+1)) at the point in time when the scan of the nth scan line (Gn) ends.

Description

technical field [0001] The present invention relates to a driving device for reducing undercharging of a pixel electrode and a driving method thereof. Background technique [0002] In recent years, display devices such as television receivers (hereinafter also referred to as televisions) have been increasing in screen size, resolution, and frame rate, and TVs that can display images three-dimensionally (so-called 3D display) in popularity. [0003] here, in Figure 19 shows the scanning period per scanning line in the case of driving at each frame frequency in display devices having various resolutions and numbers of scanning lines. Figure 19 It is a table showing an example of a scanning period per scanning line when the display device has various resolutions and numbers of scanning lines and is driven at each frame frequency. [0004] Such as Figure 19 As shown, the higher the resolution, that is, the larger the number of scanning lines, the shorter the scanning period ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G02F1/133G09G3/36
CPCG09G3/3648G09G2310/0251H04N13/0497G09G2310/066G09G2310/0205G09G2310/067G09G2320/0223G09G3/3614G09G2320/0247G09G2320/0257G09G2330/021H04N13/398G09G3/20
Inventor 村井淳人尾崎正实齐藤浩二
Owner SHARP KK
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