Driving circuit of light emitting element
A driving circuit for a light emitting element, electrically connected to a data line and a scan line and powered by a bias voltage so as to drive the light emitting element, comprising: a first transistor, further comprising: a first gate, electrically connected to the scan line; and a first drain/source, having a first node electrically connected to the data line and a second node; and a second transistor, further comprising: a second gate, electrically connected to the second node of the first drain/source; and a second drain/source, having a first node electrically connected to the bias voltage, and a second node electrically connected to the light emitting element; wherein, an insulation layer and a layer of non-volatile material is formed successively between the semiconductor layer and the second gate of the second transistor.
1. A driving circuit for a light emitting element, electrically connected to a data line and a scan line and powered by a bias voltage so as to drive the light emitting element, comprising:
a first transistor, further comprising: a first gate, electrically connected to the scan line; and a first drain/source, having a first node electrically connected to the data line and a second node;
a second transistor, further comprising: a second gate, electrically connected to the second node of the first drain/source; and a second drain/source, having a first node electrically connected to the bias voltage, and a second node electrically connected to the light emitting element; and
a capacitor, made of a non-volatile material with hysteresis effect for extending the time that the bias voltage powers to drive the light emitting element and reducing the amount of times that the data line and the scan line being driven to switch on/off during displaying a static image, having two terminals, one of the two terminals being electrically connected to the bias voltage and another being electrically connected to he second node of the first drain/source and the second gate in respective.
2. The driving circuit of claim 1 , wherein the non-volatile material is a ferroelectric material.
3. The driving circuit of claim 2 , wherein the ferroelectric material is Lead Zirconate Titanate (PZT).
4. The driving circuit of claim 2 , wherein the ferroelectric material is Lead Scandium Tantalate (PST).
5. The driving circuit of claim 1 , wherein the light emitting element is an Organic Light Emitting Diode (OLED).
6. The driving circuit of claim 1 , wherein the light emitting element is a Polymer Light Emitting Diode (PLED).
7. The driving circuit of claim 1 , wherein the light emitting element is a Carbon Nanotube Field Emission Display (CNT-FED).
8. A driving circuit for a light emitting element, electrically connected to a data line and a scan line and powered by a bias voltage so as to drive the light emitting element, comprising:
a first transistor, further comprising: a first gate, electrically connected to the scan line; and a first drain/source, having a first node electrically connected to the data line and a second node; and
a second transistor, further comprising: a second gate, electrically connected to the second node of the first drain/source; and a second drain/source, having a first node electrically connected to the bias voltage, and a second node electrically connected to the light emitting element;
wherein, an insulation layer and a layer of non-volatile material with hysteresis effect for extending the time that the bias voltage powers to drive the light emitting element and reducing the amount of times that the data line and the scan line being driven to switch on/off during displaying a static image are formed successively between the semiconductor layer and the second gate of the second transistor.
9. The driving circuit of claim 8 , wherein the non-volatile material is a ferroelectric material.
10. The driving circuit of claim 9 , wherein the ferroelectric material is Lead Zirconate Titanate (PZT).
11. The driving circuit of claim 9 , wherein the ferroelectric material is Lead Scandium Tantalate (PST).
12. The driving circuit of claim 8 , wherein the light emitting element is an Organic Light Emitting Diode (OLED).
13. The driving circuit of claim 8 , wherein the light emitting element is a Polymer Light Emitting Diode (PLED).
14. The driving circuit of claim 8 , wherein the light emitting element is a Carbon Nanotube Field Emission Display (CNT-FED).