# US 8,570,245 B2 · Display device, method for driving the same, and electronic apparatus > Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt - Number: US 8,570,245 B2 - Document ID: US8570245B2 - Status: Granted - Kind: B2 - Application number: 12/632,330 - Filed: 2009-12-07 - Published: 2010-06-17 - Granted: 2013-10-29 - Earliest claimed: 2008-12-11 - Assignees: Sony Corporation - Applicants: Yukihito Iida; Mitsuru Asano; Katsuhide Uchino - Inventors: Yukihito Iida; Mitsuru Asano; Katsuhide Uchino - Web page: https://patentgrep.com/patent/US8570245B2 ## CPC - G09G 3/3233: with pixel circuitry controlling the current through the light-emitting element - G09G 3/30: using electroluminescent panels - H10D 86/441: {Interconnections, e.g. scanning lines} - H10D 86/60: wherein the TFTs are in active matrices - H10K 59/12: Active-matrix OLED [AMOLED] displays - H10K 59/1213: {the pixel elements being TFTs} - H10K 59/1216: {the pixel elements being capacitors} - H10K 59/123: Connection of the pixel electrodes to the thin film transistors [TFT] - H10K 59/131: Interconnections, e.g. wiring lines or terminals - G09G 2320/0233: Improving the luminance or brightness uniformity across the screen - G09G 2320/043: Preventing or counteracting the effects of ageing - G09G 2320/045: Compensation of drifts in the characteristics of light emitting or modulating elements - G09G 2330/02: Details of power systems and of start or stop of display operation - G09G 2330/028: Generation of voltages supplied to electrode drivers in a matrix display other than LCD - G09G 2330/10: Dealing with defective pixels - G09G: ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION (arrangements for transferring data between digital computers and displays G06F3/14; static indicating arrangements comprising an association of a number of separate sources or light control cells G09F9/00; static indicating arrangements comprising integral associations of a number of light sources H01J, H01K, H10H, H05B33/12; scanning, transmission or reproduction of documents or the like, e.g. facsimile transmission, details thereof H04N1/00) - H10D: INORGANIC ELECTRIC SEMICONDUCTOR DEVICES - H10K: ORGANIC ELECTRIC SOLID-STATE DEVICES ## Abstract A display device includes a pixel array unit having a matrix of pixels each configured such that an anode electrode of an organic electroluminescent element is connected to a source electrode of a drive transistor, a gate electrode of the drive transistor is connected to a source or drain electrode of a writing transistor, and a storage capacitor is connected between the gate and source electrodes of the drive transistor, scanning lines and power supply lines for individual pixel rows, and signal lines for individual pixel columns. A video signal reference potential is supplied to the signal lines for a period during which a scanning signal is supplied to the scanning lines during driving of pixels in a preceding row. During threshold correction for the drive transistor in a current pixel, the video signal reference potential and a potential of the cathode electrode of the organic electroluminescent element are equal. ## Claims ### Claim 1 A display device comprising a pixel array unit having pixels arranged in a matrix, each pixel having a circuit configuration including an electro-optical element, a drive transistor, a writing transistor, a storage capacitor, and an auxiliary capacitor, wherein: the storage capacitor is connected between the gate and source electrodes of the drive transistor; the storage capacitor and the auxiliary capacitor are arranged adjacent to each other; and a wiring of the storage capacitor, which is brought into conduction with the gate electrode of the drive transistor, and a wiring of the auxiliary capacitor, which is brought into conduction with the second electrode of the electro-optical element, are provided in different layers. ### Claim 2 A display device comprising a pixel array unit having pixels arranged in a matrix, each pixel having a circuit configuration including an electro-optical element, a drive transistor, a writing transistor, a storage capacitor, and an auxiliary capacitor, wherein: the storage capacitor is connected between the gate and source electrodes of the drive transistor, the storage capacitor and the auxiliary capacitor are arranged adjacent to each other; and a wiring of the storage capacitor, which is brought into conduction with the source electrode of the drive transistor, and a wiring of the auxiliary capacitor, which is brought into conduction with the first electrode of the electro-optical element, are provided in different layers. ### Claim 3 (depends on 1, 2) The display device according to claim 1 or 2, wherein one of the different layers is a first wiring layer and the other layer is a polysilicon layer. ### Claim 4 (depends on 1, 2) The display device according to claim 1 or 2, wherein: the electro-optical element is an organic electroluminescent element, the first electrode is an anode electrode, and the second electrode is a cathode electrode. ### Claim 5 An electronic apparatus comprising a display device provided in a housing of the electronic apparatus, the display device including a pixel array unit having pixels arranged in a matrix, each pixel having a circuit configuration including an electro-optical element, a drive transistor, a writing transistor, a storage capacitor, and an auxiliary capacitor, wherein: the storage capacitor is connected between the gate and source electrodes of the drive transistor; the storage capacitor and the auxiliary capacitor are arranged adjacent to each other; and a wiring of the storage capacitor, which is brought into conduction with the gate electrode of the drive transistor, and a wiring of the auxiliary capacitor, which is brought into conduction with the second electrode of the electro-optical element, are provided in different layers. ### Claim 6 (depends on 3) The display device according to claim 3, wherein: the electro-optical element is an organic electroluminescent element, the first electrode is an anode electrode, and the second electrode is a cathode electrode.