INTEGRATED TOUCH SCREENS
First Claim
1. An integrated touch sensitive display, comprising:
- a first portion of the display comprising first integrated display and touch sensing circuitry; and
a second portion of the display comprising second integrated display and touch sensing circuitry;
wherein the second integrated display and touch sensing circuitry is configured to perform touch sensing operations, and the first integrated display and touch sensing circuitry is configured to perform display operations simultaneous with the performance of the touch sensing operations by the second integrated display and touch sensing circuitry.
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Abstract
Integrated touch screens are provided including drive lines formed of grouped-together circuit elements of a thin film transistor layer and sense lines formed between a color filter layer and a material layer that modifies or generates light. The common electrodes (Vcom) in the TFT layer can be grouped together during a touch sensing operation to form drive lines. Sense lines can be formed on an underside of a color filter glass, and a liquid crystal region can be disposed between the color filter glass and the TFT layer. Placing the sense lines on the underside of the color filter glass, i.e., within the display pixel cell, can provide a benefit of allowing the color filter glass to be thinned after the pixel cells have been assembled, for example.
12 Citations
20 Claims
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1. An integrated touch sensitive display, comprising:
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a first portion of the display comprising first integrated display and touch sensing circuitry; and a second portion of the display comprising second integrated display and touch sensing circuitry; wherein the second integrated display and touch sensing circuitry is configured to perform touch sensing operations, and the first integrated display and touch sensing circuitry is configured to perform display operations simultaneous with the performance of the touch sensing operations by the second integrated display and touch sensing circuitry. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8)
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9. An integrated touch screen, comprising:
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a plurality of rows of display pixels, each row of display pixels configurable for either display operations or touch sensing operations; and a processor communicatively coupled to the plurality of rows of display pixels and capable of, in a first time period, configuring a first set of one or more rows of display pixels to perform first touch sensing operations, and configuring a second set of one or more row of display pixels to perform first display operations; wherein the first touch sensing operations are performed at the same time as the first display operations; and wherein the second set is nonoverlapping with the first set. - View Dependent Claims (10, 11, 12, 13, 14, 15)
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16. A method of operating an integrated touch screen, comprising:
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in a first time period, configuring a first set of one or more rows of display pixels to perform first touch sensing operations, and configuring a second set of one or more row of display pixels to perform first display operations; wherein the first touch sensing operations are performed at the same time as the first display operations; and wherein the second set is nonoverlapping with the first set. - View Dependent Claims (17, 18, 19, 20)
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Specification