PATENT CLAIM ANALYSIS

Application Number: 15742232
Application Type: Utility
Filing Date: 2018-01
Publication Date: 2019-04
Patent Classification: ["345", "214000"]

Abstract:
A temperature compensation circuit and method for a display panel and a display panel are provided. The display panel includes a control circuit, a driving circuit, a detection circuit and a pixel circuit; wherein the detection circuit is configured to obtain a current threshold voltage of a transistor of the pixel circuit, the control circuit obtains a current voltage difference between the current threshold voltage and an initial threshold voltage, obtains a current compensation gain matching the current voltage difference according to a predetermined related data of a voltage difference and a compensation gain, and controls the driving circuit to drive the pixel circuit by using the current compensation gain. By practice of the disclosure, the temperature compensation for a display panel could be achieved without the additional temperature sensor, so the service life of the display panel could be extended.

Claim (Index 1):
A temperature compensation circuit for a display panel, comprising:\n a control circuit; and a detection circuit, electrically coupled to the control circuit; wherein the control circuit is configured to be electrically coupled to a driving circuit of the display panel, the detection circuit is configured to be electrically coupled to a pixel circuit of the display panel to obtain a current threshold voltage of a transistor of the pixel circuit, the control circuit further obtains a current voltage difference between the current threshold voltage and an initial threshold voltage, obtains a current compensation gain matching the current voltage difference according to a predetermined related data of a voltage difference and a compensation gain, and controls the driving circuit to drive the pixel circuit by using the current compensation gain to compensate an impact of temperature variation on the pixel circuit; wherein after the control circuit obtained the current voltage difference between the current threshold voltage and the initial threshold voltage, further determines whether the current voltage difference is less than zero, if and only if the current voltage difference is less than zero, obtains the current compensation gain matching the current voltage difference according to the predetermined related data of the voltage difference and the compensation gain; wherein the related data of predetermined voltage difference and compensation gain is obtained by the following steps, comprising: obtaining a relation between a threshold voltage of the transistor of the pixel circuit and a temperature, and a relation between a mobility of the transistor of the pixel circuit and the temperature by experiment, establishing the predetermined related data of the temperature, the voltage difference and the compensation gain, wherein the compensation gain is obtained through a combination of the threshold voltage, the mobility and the temperature.

Metadata:
- Claim Count in Document: 14.0
- Percentile: 86.0
- Lexical Diversity: 2.53333
- Patent Class: 345.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['15633781', '15596390', '15309475', '15505097', '15562513']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6588650557178319
- 35 USC 102 Novelty (BERT): 0.4925630220296041
- Combined Prediction Score: 0.6422348523490091
- Mean Citation Score: 243.95110800000003
- Max Citation Score: 248.4654
- Similarity Product: 195.3642722314596

Labels:
- Claim Label 101: 1
- Claim Label 102: 1
- Claim Label 103: 0
- Claim Label 112: 1
- Combined Label: 1
- Label 101 Adjusted: 1

Dataset: test