PATENT CLAIM ANALYSIS

Application Number: 15949508
Application Type: Utility
Filing Date: 2018-04
Publication Date: 2019-09
Patent Classification: ["345", "215000"]

Abstract:
An active-matrix organic light-emitting diode pixel circuit and a driving method for the same are provided to eliminate adverse effects of variation in transistor threshold voltage. However, owing to internal parasitic parameters of transistors, compensation for variation in a threshold voltage is not necessarily fully achieved. Therefore, mura otherwise arising from variation in a threshold voltage and degradation of organic light-emitting diodes is eliminated at an emission stage by an external processor's sensing an anode voltage of the organic light-emitting diodes, calculating an offset value related thereto, and adjusting an originally output data voltage with the offset value.

Claim (Index 9):
A driving method for an active-matrix organic light-emitting diode pixel circuit of an integrated external processor, adapted to drive the active-matrix organic light-emitting diode pixel circuit of an integrated external processor of  claim 1 , the driving method comprising the steps of:\n a. driving the initialization unit with the third scan signal in a first period to cause the initialization unit to reset the driving unit according to the fixed voltage, eliminate residual voltage of the driving unit, and making the driving unit diode connection, thereby causing the compensation unit to store a threshold voltage; b. driving the data input unit with the first scan signal in a second period following the first period to supply a data voltage to the pixel circuit, charging a node between the first capacitor and the compensation unit under the data voltage with the second scan signal and causing the control end of the driving unit to achieve an intended compensated voltage level by the compensation unit; and c. driving the driving unit to output the driving current under a voltage at a second end of the second capacitor in a third period following the second period, driving the light emission starting unit with the light emission starting signal to feed the driving current to the organic light-emitting diode so as for the organic light-emitting diode to emit light, triggering with the sensing signal the sensing starting unit to sense an anode voltage of the organic light-emitting diode, transmitting a sensing voltage to the external processor without affecting the driving current, and allowing the external processor to calculate an offset value of the data voltage according to the anode voltage, refresh the data voltage with the offset value, store the refreshed data voltage in the storage unit and at an address therein associated with a corresponding grayscale value, and output the compensated data voltage to the pixel circuit in the next instance of displaying the corresponding grayscale to effectuate compensation.

Metadata:
- Claim Count in Document: 1.0
- Percentile: 91.0
- Lexical Diversity: 1.57353
- Patent Class: 345.0
- Transitional Phrase Type: open
- Component Type: 1
- Foreign Priority: True
- Related Applications: ['14802940', '14936553', '15764748', '13668038', '15434363']

Analysis Scores:
- 35 USC 101 Eligibility (BERT): 0.6848126681253952
- 35 USC 102 Novelty (BERT): 0.5084980139753436
- Combined Prediction Score: 0.66718120271039
- Mean Citation Score: 295.487068
- Max Citation Score: 298.82126
- Similarity Product: 227.361062562232

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