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Voltage level shift unit of pure P type transistor

A voltage level shift, transistor technology, applied in the direction of logic circuit coupling/interface, instrument, static indicator, etc. using field effect transistor, can solve problems such as reducing company competitiveness, inability to integrate together, increasing cost, etc.

Inactive Publication Date: 2005-03-23
TPO DISPLAY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] To sum up, if you try to integrate the pure P-type transistor liquid crystal display panel manufacturing method with the voltage level shifter, you must increase the mask for making N-type transistors, and because the manufacturing method is more complicated, it will lead to qualified a drastic reduction in the rate
Instead of reducing costs, it will lead to an increase in costs and reduce the company's competitiveness
Therefore, the existing liquid crystal display panel and the voltage level shifter must be manufactured independently and cannot be integrated together

Method used

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  • Voltage level shift unit of pure P type transistor
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  • Voltage level shift unit of pure P type transistor

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Embodiment Construction

[0020] Aiming at the disadvantage that the existing liquid crystal display panel and the voltage level shifter cannot be integrated together, the present invention proposes a voltage level shifter composed of pure P-type transistors.

[0021] Please refer to figure 1 , which is the voltage level shifter of the pure P-type transistor of the present invention. In the present invention, V DD Represents the highest voltage, V SS represents the lowest voltage, while In 1 with In 2 Represent a pair of complementary input clock signals, that is, when In 1 In high level 2 That is, low level, when In 1 In low level 2 That is, high level. According to this embodiment, V DD 6V, V SS It is -12V, the high level of the input clock signal is 0V, and the low level is -3.3V.

[0022] like figure 1 , in the previous stage circuit 10, the gate (G) drain (D) of the first transistor T1 is connected to In 1 input, the source (S) represents the first voltage node (V 1 ). The gate (G) ...

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Abstract

The method for manufacturing voltage level shifter in pure P type transistor is completely compatible to the method for manufacturing the common liquid crystal display (LCD) faceplate. Thus, the method for manufacturing the voltage level shifter in pure P type transistor can be directly integrated into the method for manufacturing the common LCD faceplate. Therefore, the IC is not necessary to be bought extraordinary by using the invention so as reduce the cost for manufacturing the shifter.

Description

technical field [0001] The invention relates to a voltage level shifter, in particular to a pure P-type transistor voltage level shifter which can be integrated into a liquid crystal display panel manufacturing method. Background technique [0002] With the rapid development of science and technology, the use of computers has greatly increased, and computer equipment has become increasingly popular. Computers have almost become a must-have electrical appliance for every household. People's dependence on computers has also reached an indispensable level. Therefore, for computer equipment Quality requirements are becoming more and more stringent. In addition to the speed and performance of computer operations, monitors are also one of the devices that users attach great importance to. Due to the large size of the traditional display, it emits harmful radiation when in use. Therefore, the traditional display is gradually eliminated and replaced by the liquid crystal display pan...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G09G3/26G09G3/36H03K19/0185
Inventor 邱昌明
Owner TPO DISPLAY