Display device

A technology for displaying data and displaying signals, which is applied in the field of current-driven display devices and can solve problems such as enlargement and problem increase

Inactive Publication Date: 2008-11-26
GOLD CHARM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In this structure, the complexity of installation and the enlargement of the frame edge cannot be avoided at the same time as high-definition and multi-grayscale
At the same time, due to the increase in frequency, the problem of EMI (ElectroMagnetic Interference: radio wave interference) increases

Method used

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Embodiment 1

[0112] Fig. 1 shows a configuration diagram of a first embodiment of the present invention. A first embodiment of the present invention will be described in detail with reference to FIG. 1 . Referring to FIG. 1 , the first embodiment of the present invention is composed of a system-side circuit board 103 , a controller IC 102 , and a display device board 101 . The system circuit board 103 includes an interface circuit 114 and is connected to the controller IC 102 . The controller IC 102 includes a controller 113 , a memory 111 , and an output buffer 112 , and is connected to the system circuit board 103 and the display device board 101 . Display device substrate 101 is equipped with level shifter / timing buffer (controller) 106, scanning circuit (scanning line driving circuit) 109, level shifter 104, latch circuit 105, DAC circuit 106, selection circuit 107 and The display unit 110 is connected to the controller IC 102 . The level shifter circuit 104, the latch circuit 105, ...

Embodiment 2

[0134] Next, a second embodiment of the present invention will be described. Fig. 5 shows a configuration diagram of a second embodiment of the present invention. As shown in FIG. 5 , the second embodiment of the present invention is composed of a system-side circuit board 103 , a controller IC 102 , and a display device board 101 . The system circuit board 103 includes an interface circuit 114 and is connected to the controller IC 102 . The controller IC 102 includes a controller 113 , a memory 111 , and an output buffer 112 , and is connected to the system circuit board 103 and the display device board 101 . The display device substrate 101 is equipped with a level shifter / timing buffer 108, a scanning circuit 109, a level shifter 104, a latch circuit 105, a DAC circuit 106, a selector circuit 107, and a display unit 110, which are in phase with the controller IC 102. connect. The level shifter circuit 104 , the latch circuit 105 , the DAC circuit 106 , and the selector c...

Embodiment 3

[0138] Next, a third embodiment of the present invention will be described. Fig. 6 is a block diagram showing a third embodiment of the present invention. In FIG. 6 , the third embodiment of the present invention is composed of a system side circuit board 103 , a controller IC 102 and a display device board 101 . The system circuit board 103 includes an interface circuit 114 and is connected to the controller IC 102 . The controller IC 102 includes a controller 113 , a memory 111 , and an output buffer 112 , and is connected to the system circuit board 103 and the display device board 101 . Display device substrate 101 is equipped with level shifter / timing buffer 108, scanning circuit 109, level shifter 104, latch circuit 105, DAC circuit 106, selector circuit 107 and display unit 110, and is connected with controller IC102 . The latch circuit 105 , the level shifter 104 , the DAC circuit 106 , and the selector circuit 107 are arranged in this order, and the selector circui...

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PUM

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Abstract

This invention provides a display device of high definition, multiple colors and low power consumption includes a display panel 110, a scanning circuit 109 and a data line driving circuit. The external of the display panel includes a controller IC102 having a display memory for storing display data, an output buffer 112 for reading data out of the display memory and outputting this data to the display panel, and a controller 113 for controlling the display memory and output buffer and communication with the host device; the display panel is provided with a DAC circuit 106, which forms part of the data-line driver, for converting display data represented by a digital signal to an analog signal; the width of a bus for data transfer between the controller IC 102 and data-line driver of the display panel is such that data of a greater number of bits is transferred in parallel by a single transfer than is transferred by the bus between the controller and the host device. This allows the operating frequency of the data-line driver to be reduced.

Description

[0001] This application is a divisional application of the application with the application number 02144327.0 and the title of the invention "display device" filed on October 8, 2002. technical field [0002] The present invention relates to display devices used in projectors, notebook computers, monitors, mobile phones, PDAs, etc., and particularly relates to voltage-driven display devices such as liquid crystal display devices and current-driven display devices. Background technique [0003] With the development of the multimedia era, display devices range from small devices such as projectors, video camera viewfinders, and mobile phones, to display screens for car TVs and navigation systems, PDAs (Personal Digital Assistants), Medium-sized devices for portable terminals such as portable PCs (Personal Computers), and large devices for notebook computers and monitors are rapidly spreading. Among these display devices, liquid crystal display devices are currently used in the...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G09G5/00G09G3/36
Inventor 芳贺浩史高取宪一浅田秀树
Owner GOLD CHARM LTD
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