Touch Display Device, Touch Driving Circuit, and Touch Sensing Method
AssigneeLG Display Co., Ltd.
InventorHongJu LEE
Life of this patent
Estimating the term…
Loading patent…
AssigneeLG Display Co., Ltd.
InventorHongJu LEE
Estimating the term…
Embodiments of the present disclosure relate to a touch display device, a touch driving circuit, and a touch sensing method, and enable differential sensing using a single-ended amplifier without using a differential amplifier, thereby not only accurately sensing a touch during display driving, but also significantly reducing the number of circuit components and the circuit area for differential sensing.
A touch display device comprising:
A touch driving circuit comprising:
A method of sensing a touch, the method comprising:
Dependencies are inferred from the claim text.
Drawings are temporarily unavailable. Open the PDF at USPTO
From the US filing history. Foreign family members aren’t listed.
Backward citations are indexed for grants only.
Control or interface arrangements specially adapted for digitisers: details of scanning methods, e.g. sampling time, grouping of sub areas or time…
Control or interface arrangements specially adapted for digitisers: for error correction or compensation, e.g. based on parallax, calibration or…
For error correction or compensation, e.g. based on parallax, calibration or alignment: filtering of noise external to the device and not…
By capacitive means: using a single layer of sensing electrodes
Term end not estimated
This application claims priority from Republic of Korea Patent Application No. 10-2019-0177011, filed on Dec. 27, 2019, which is hereby incorporated by reference in its entirety.
Embodiments of the present disclosure relate to a touch display device, a touch driving circuit, and a touch sensing method.
With the development of information society, the demand for display devices for displaying images is increasing in various forms. Among these display devices, there is a touch display device that provides a touch-based input method that allows a user to input information or commands intuitively and conveniently by moving away from a conventional input method such as a button, a keyboard, and a mouse.
The above and other objects, features and advantages of the present disclosure will be more apparent from the following detailed description in conjunction with the accompanying drawings, in which:
FIG. 1 is a system configuration diagram of a touch display device according to embodiments of the present disclosure;
FIG. 2 is a diagram illustrating a display panel and driving circuits according to embodiments of the present disclosure;
In the following description of examples or embodiments of the present disclosure, reference will be made to the accompanying drawings in which it is shown by way of illustration specific examples or embodiments that can be implemented, and in which the same reference numerals and signs can be used to designate the same or like components even when they are shown in different accompanying drawings from one another. Further, in the following description of examples or embodiments of the present disclosure, detailed descriptions of well-known functions and components incorporated herein will be omitted when it is determined that the description may make the subject matter in some embodiments of the present disclosure rather unclear. The terms such as “including”, “having”, “containing”, “constituting” “make up of”, and “formed of” used herein are generally intended to allow other components to be added unless the terms are used with the term “only”. As used herein, singular forms are intended to include plural forms unless the context clearly indicates otherwise.
Terms, such as “first”, “second”, “A”, “B”, “(a)”, or “(b)” may be used herein to describe elements of the present disclosure. Each of these terms is not used to define essence, order, sequence, or number of elements etc., but is used merely to distinguish the corresponding element from other elements.
When it is mentioned that a first element “is connected or coupled to”, “contacts or overlaps” etc. a second element, it should be interpreted that, not only can the first element “be directly connected or coupled to” or “directly contact or overlap” the second element, but a third element can also be “interposed” between the first and second elements, or the first and second elements can “be connected or coupled to”, “contact or overlap”, etc. each other via a fourth element. Here, the second element may be included in at least one of two or more elements that “are connected or coupled to”, “contact or overlap”, etc. each other.