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Display device

A technology for display devices and potentials, applied in static indicators, logic circuit connection/interface layout, logic circuit coupling/interface using field effect transistors, etc., can solve problems such as difficult to simplify the circuit composition of display devices

Active Publication Date: 2008-12-31
SANYO ELECTRIC CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in this case, in order to sequentially drive the gate lines of each segment, there is a problem that a shift register circuit whose number of segments is twice the number of gate lines must be provided.
Therefore, it is difficult to simplify the circuit configuration of a display device including a shift register circuit.

Method used

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Experimental program
Comparison scheme
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no. 1 Embodiment

[0112] First refer to figure 1 , in this first embodiment, the display portion 2 is provided on the substrate 1 . In the display unit 2 , pixels 20 are arranged in a matrix. exist figure 1 In , only one pixel 20 is shown in order to simplify the drawing. Each pixel 20 is composed of: an n-channel transistor 21 (hereinafter referred to as a transistor 21), a pixel electrode 22, an opposite electrode 23 common to each pixel 20 arranged opposite to the pixel electrode 22, and surrounded by the pixel electrode 22 and the opposite electrode. The liquid crystal 24 between the electrodes 23 and the storage capacitor 25 constitute. The source of the transistor 21 is connected to the pixel electrode 22 and the storage capacitor 25 , and the drain is connected to the drain line. The gate of this transistor 21 is connected to a gate line.

[0113] Further, a horizontal switch (HSW) 3 and an H driver 4 for driving (scanning) a drain line of the display unit 2 are provided on the su...

no. 2 Embodiment

[0204] The second embodiment has almost the same configuration as the first embodiment. Referring to Fig. 5, the difference from the first embodiment is that in the inside of the V driver 5a, shift register circuit sections 501 to 505, a scanning direction switching circuit section 600, an input signal switching circuit section 700, And the transistors of the multi-stage logic synthesis circuit sections 801 to 803 are changed to p-channel transistors. In FIG. 5, in order to simplify the drawing, only 5 stages of shift register circuit sections 501 to 505 and 3 stages of logic synthesis circuit sections 801 to 803 are shown, but in fact shift register circuits corresponding to the number of pixels are arranged. Bit register circuit section and logic synthesis circuit section.

[0205] Next, the operation of the V driver 5a of the liquid crystal display device of the second embodiment will be described with reference to FIGS. 5 and 6. FIG. In the V driver 5a of the second embo...

no. 3 Embodiment

[0208] Referring to FIG. 7, in the third embodiment, in the configuration of the above-mentioned first embodiment, the drain of the transistor connected to the node of the shift register circuit section after the third stage is output with a shift output signal, A case where an enable signal is supplied instead of the positive side potential.

[0209] That is, as shown in FIG. 7, in this third embodiment, multistage shift register circuit sections 511 to 515, scanning direction switching circuit section 610, input signal switching circuit section 710, and multistage logic synthesis circuit section are provided. 811 to 813. In FIG. 7, in order to simplify the drawing, only 5 stages of shift register circuit sections 511 to 515 and 3 stages of logic synthesis circuit sections 811 to 813 are shown, but in fact, shift registers corresponding to the number of pixels are arranged. A register circuit unit and a logic synthesis circuit unit.

[0210] In addition, the shift register ...

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Abstract

The invention provides a display having a shift register circuit capable of suppressing increase of power consumption is provided. This display comprises a shift register circuit including a shift register circuit portion including a first circuit portion having a second transistor turned on in response to a first signal and a second circuit portion having a sixth transistor turned on in response to a second signal providing an ON-state period not overlapping with an ON-state period of the second transistor and an input signal switching circuit portion for switching the first and second signals supplied to the second and sixth transistors respectively.

Description

[0001] This application is a divisional application of a Chinese patent application with the application number 200510125921.1, the application date is November 25, 2005, the applicant is "Sanyo Electric Co., Ltd.", and the invention name is "display device". technical field [0002] The present invention relates to a display device, in particular to a display device with a shift register circuit. Background technique [0003] Conventionally, a resistive load type inverter circuit has been known. This inverter circuit is disclosed in, for example, Masatake Kishino, "Basics of Semiconductor Elements", published by Ohm Corporation, Japan, April 25, 1985, pp. 184-187. In addition, conventionally, a shift register circuit including the above-mentioned resistive load type inverter circuit is also known. The shift register circuit is used, for example, in a circuit for driving gate lines and drain lines of a liquid crystal display device and an organic electroluminescent display ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G3/20G09G3/36G09G3/32H03K19/0185
Inventor 千田满堀端浩行
Owner SANYO ELECTRIC CO LTD
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