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Driver monolithic liquid crystal panel driver circuit and liquid crystal display having same

A technology of liquid crystal display device and driving circuit, which is used in static indicators, nonlinear optics, instruments, etc.

Inactive Publication Date: 2011-08-03
SHARP KK
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Therefore, the circuit scale becomes larger and the manufacturing cost increases

Method used

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  • Driver monolithic liquid crystal panel driver circuit and liquid crystal display having same
  • Driver monolithic liquid crystal panel driver circuit and liquid crystal display having same
  • Driver monolithic liquid crystal panel driver circuit and liquid crystal display having same

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0156] 1.1 Overall composition and action

[0157] figure 1 It is a block diagram showing the overall configuration of the liquid crystal display device according to Embodiment 1 of the present invention. The liquid crystal display device includes: a liquid crystal display driving circuit 200 , a first liquid crystal display 610 , and a second liquid crystal display 620 . The first liquid crystal panel 610 and the second liquid crystal panel 620 respectively have a source driver 300 , a gate driver 400 , and a display unit 500 . In addition, the display unit 500 has a plurality of data signal lines connected to the source driver 300, a plurality of scanning signal lines connected to the gate driver 400, and a plurality of data signal lines connected to the plurality of scanning signal lines respectively. The intersections correspond to a plurality of pixel forming portions (not shown in the figure). Also, in this embodiment, the first liquid crystal panel 610 is generally ...

Embodiment approach 2

[0182] 2.1 Overall composition, etc.

[0183] Hereinafter, Embodiment 2 of the present invention will be described. Due to the overall composition of this embodiment and the figure 1 The above-mentioned Embodiment 1 shown is the same, so the same reference numerals are assigned to the same or corresponding parts, and the detailed description thereof will be omitted. Figure 7 It is a block diagram for explaining the connection relationship between the liquid crystal panel driving circuit 200 and the video signal lines for transmitting the analog video signal AV between the first liquid crystal panel 610 and the second liquid crystal panel 620. As in Embodiment 1, in this embodiment, in order to properly display an image on the display unit 500 , a two-phase development signal is supplied to the first liquid crystal panel 610 and a signal is supplied to the second liquid crystal panel 620 . phase unfolding signal. In Embodiment 1, such as figure 2 As shown, among the 9 vi...

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Abstract

A liquid crystal display comprising liquid crystal panels of different sizes for displaying an image through a phase-developed image signal and having a reduced circuit scale. A liquid crystal panel driver circuit is used for driving first and second liquid crystal panels of driver monolithic type having different sizes. External image data is temporarily stored in an image memory (23) through a host interface section (22). A read control section (3) reads the image data from the image memory (23) in such a way that a two-phase developed image signal is outputted if the operating panel is thefirst liquid crystal panel and a single-phase developed image signal is outputted if the operating panel is the second one. The thus generated phase developed image signal is supplied as an analog video signal to the operating panel out of the first and second liquid crystal panels through a conversion section (25), a D / A conversion section (26), and an output section (27). The invention is suited to a liquid crystal display having driver monolithic liquid crystal panels of different sizes.

Description

technical field [0001] The present invention relates to a liquid crystal panel in which a driving circuit for a data signal line, etc. A liquid crystal display device and a driving circuit thereof for driving a single-chip liquid crystal panel of a large size. Background technique [0002] In recent years, liquid crystal display devices having a plurality of liquid crystal panels such as foldable mobile phones have been provided. Figure 15 It is a schematic configuration diagram of a conventional liquid crystal display device having two liquid crystal panels. like Figure 15 As shown, the liquid crystal display device has a first liquid crystal panel driving circuit 710 and a second liquid crystal panel driving circuit 720 . The first LCD drive circuit 710 includes a first image memory 71 and a first phase expansion unit 73 , while the second LCD drive circuit 720 includes a second image memory 72 and a second phase expansion unit 74 . Image data representing an image ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/36G09G3/20G02F1/133
CPCG09G3/20G09G2310/027G09G3/3688G09G2310/0297G09G2320/0276G09G2352/00G09G2310/0221G02F1/13471
Inventor 北川大二
Owner SHARP KK