Flat panel display and its manufacturing and controlling method
A flat-panel display and control board technology, applied to static indicators, instruments, electric solid-state devices, etc., can solve problems such as changes in brightness, grayscale and contrast, and difficulty in tuning circuit types
Active Publication Date: 2009-03-18
SAMSUNG DISPLAY CO LTD
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Problems solved by technology
[0011] However, in a structure forming a thin film transistor on a conductive substrate, in a case where an undesired voltage is supplied to the conductive substrate due to a large amount of static noise, and / or a case where unpredictable charges are accumulated on the conductive substrate, such as a circuit Tuning of the type becomes very difficult because the threshold voltage of the pre-conditioning of the thin film transistor is different from the specified value of the reference
In addition, there is a problem that when the threshold voltage of a thin film transistor formed on a conductive substrate is different from a reference specified value, the displayed brightness, gradation, and contrast of various colors displayed on a display device using a thin film transistor are changed.
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[0038] In the following detailed description, there are shown and described, by way of example, certain exemplary embodiments of the invention. As those skilled in the art would realize, the described exemplary embodiments may be changed in various ways, all without departing from the spirit or scope of the present invention. Accordingly, the drawings and descriptions are to be regarded as illustrative in nature and not restrictive. There may be components shown in the drawings, or there may be components not shown in the drawings, which are not discussed in the description because they are not essential to a complete understanding of the invention. Like reference numbers indicate like elements. Here, when the first element is connected to or connected to the second element, the element may not only be directly connected to or directly connected to the second element, but also not directly connected to the second element through the third element. The second element may or m...
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Abstract
A flat panel display and method for driving the same. The flat panel display includes a conductive substrate forming an image display unit having at least one thin film transistor and a pad unit including a plurality of terminals, wherein the conductive substrate is laminated with a plurality of insulating layers to form the image display unit and the pad unit; a substrate-exposing part for exposing the conductive substrate is formed by removing at least one area of the insulating layers formed on the pad unit; a system control panel for supplying a reverse bias voltage through the substrate-exposing part, wherein the system control panel is electrically connected with the pad unit; and a metal member for transferring the reverse bias voltage to the conductive substrate, wherein the metal member is formed between the substrate-exposing part and the system control panel.
Description
technical field [0001] The present invention relates to a flat-panel display and a manufacturing method thereof, in particular to a flat-panel display and a method for moving it, wherein a conductive substrate is applied through a metal member connected to an external system and a grounding unit formed on the exposed portion of the conductive substrate. Reverse bias (back bias) thereby improving the characteristics of the thin film transistor, and / or avoiding the reduction and / or fluctuation of the threshold voltage generated by a large amount of static noise, and / or avoiding that an undesired voltage is supplied to the conductive substrate. Background technique [0002] Recently, a technique of forming a thin film transistor using a semiconductor layer formed on a substrate having an insulating surface has attracted much attention. Thin film transistors may be widely applied to electronic devices such as integrated circuits (ICs) or optoelectronic devices. Because glass a...
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IPC IPC(8): G02F1/133G09F9/33H01L27/32
CPCG02F1/136286H01L23/60H01L27/1296
Inventor 郑在景具在本申铉秀权世烈牟然坤
Owner SAMSUNG DISPLAY CO LTD