The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Jan. 19, 2021

Filed:

Mar. 24, 2020
Applicant:

Apple Inc., Cupertino, CA (US);

Inventors:

Chuang Qian, Santa Clara, CA (US);

Tsung-Ting Tsai, Cupertino, CA (US);

Shyuan Yang, Burlingame, CA (US);

Cheng-Chih Hsieh, Santa Clara, CA (US);

Abbas Jamshidi Roudbari, San Jose, CA (US);

Ting-Kuo Chang, San Jose, CA (US);

Shih-Chang Chang, Cupertino, CA (US);

Assignee:

Apple Inc., Cupertino, CA (US);

Attorneys:
Primary Examiner:
Int. Cl.
CPC ...
G09G 3/3233 (2016.01); G09G 3/3266 (2016.01); G09G 3/3275 (2016.01); G11C 19/28 (2006.01);
U.S. Cl.
CPC ...
G09G 3/3233 (2013.01); G09G 3/3266 (2013.01); G09G 3/3275 (2013.01); G11C 19/28 (2013.01); G09G 2310/0286 (2013.01);
Abstract

Electronic devices may include displays having organic light-emitting diode pixels, display driver circuitry, and gate driver circuitry. To reduce the amount of space occupied in the inactive area of a display by the gate driver circuitry, one or more of the shift registers in the gate driver circuitry may include register circuits that are shared by multiple rows of pixels. Different drivers may use different clock frequencies to ensure synchronous operation of the display even when some register circuits share pixel rows. For increased flexibility in the arrangement of the register circuits in the shift registers, one or more of the shift registers may be split across the active area of the display. In some cases, one of the emission drivers may be omitted from the gate driver circuitry and a single emission driver may provide multiple emission control signals for the pixels.


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