DISPLAY DEVICE HAVING TOUCH SENSOR AND METHOD OF DRIVING THE SAME

• US 20170177154A1
• Filed: 03/01/2017
• Published: 06/22/2017
• Est. Priority Date: 09/08/2010
• Status: Active Grant

• Current Assignee: LG Display Co., Ltd.
• Original Assignee: LG Display Co., Ltd.
• Inventors: CHOO, Kyo-Hyuck, HWANG, Sang-Soo, KIM, Sun-Yeop, SEO, Jung-Hoon
• Granted Patent: US 11,494,030 B2
• Time in Patent Office: Days
• CPC Class Codes: G06F 3/0412 Digitisers structurally integrated in a display
• CPC Class Codes: G06F 3/04166 Details of scanning methods, e.g. sampling time, grouping of sub areas or time sharing with display driving Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally G06F3/04184
• CPC Class Codes: G06F 3/04184 Synchronisation with the driving of the display or the backlighting unit to avoid interferences generated internally
• CPC Class Codes: G06F 3/042 by opto-electronic means
• CPC Class Codes: G06F 3/044 by capacitive means
• CPC Class Codes: G09G 2310/08 Details of timing specific for flat panels, other than clock recovery
• CPC Class Codes: G09G 3/3266 Details of drivers for scan electrodes
• CPC Class Codes: G09G 3/3275 Details of drivers for data electrodes
• CPC Class Codes: G09G 3/3677 suitable for active matrices only
• CPC Class Codes: G09G 3/3688 suitable for active matrices only

Abstract

A display device having touch sensors and a method of driving the same are disclosed. The display device includes a display panel including a pixel array including pixels and a touch sensor array including touch sensors formed in the pixel array, the pixel array being divided into blocks, a gate driver to sequentially drive a plurality of gate lines in the pixel array in a block unit, a data driver to drive a plurality of data lines in the pixel array when the gate lines are driven, a touch controller to sequentially drive the touch sensor arrays in the block unit, and a timing controller to divide one frame into at least one display mode at which the pixel array is driven and at least one touch sensing mode at which the touch sensor array is driven and to control the gate drive, the data driver and the touch controller so that the display mode and the touch sensing mode alternate.

Claims

1-10. -10. (canceled)

11. A display device, comprising:

a display panel comprising;

a plurality of gate lines;

a plurality of data lines;

a plurality of touch sensor arrays; and

a plurality of pixel arrays comprising a transistor coupled to the gate line and the data line;

a gate driver configured to drive the plurality of gate lines in the display panel;

a data driver configured to drive the plurality of data lines in the display panel; and

a touch controller configured to drive the plurality of touch sensor arrays in the display panel,

wherein the display panel is configured for at least a first display mode and a first touch sensing mode, during one frame,

wherein a display region of the display panel during the first display mode is smaller than a touch region of the display panel during the first touch sensing mode