Display device and method of controlling touch detection unit
First Claim
1. A display device comprising:
- a display panel;
a plurality of pixels disposed on the display panel;
a plurality of sensing units disposed on the display panel and adapted to generate a plurality of sensing signals in response to touches received by the sensing units;
a sensing signal processor adapted to receive the sensing signals and generate sensing data in response to the sensing signals; and
a touch detection unit having a first controller adapted to determine, based on the sensing data, whether or not a touch has been received by the sensing units and whether or not the sensing signals are in a desired range, and a second controller adapted to determine a position of the touch based on the sensing data and adapted to stabilize the sensing signals in the desired range.
2 Assignments
0 Petitions
Accused Products
Abstract
A display device may include a display panel, a plurality of pixels that are disposed on the display panel, a plurality of sensing units that are disposed on the display panel to generate sensing signals based on touch of the display panel, a sensing signal processor that receives the sensing signals and performs predetermined signal processes to generate sensing data, and a touch detection unit. The touch detection unit may include a first controller that determines, based on the sensing data from the sensing signal process, whether or not there is a touch occurrence of the sensing units and whether or not the sensing signal is in an appropriate state. The touch detection unit may also include a second controller that determines the touch occurrence and touch positions on the sensing units based on the sensing data and controls the sensing signals to be in the desired range.
-
Citations
25 Claims
-
1. A display device comprising:
-
a display panel; a plurality of pixels disposed on the display panel; a plurality of sensing units disposed on the display panel and adapted to generate a plurality of sensing signals in response to touches received by the sensing units; a sensing signal processor adapted to receive the sensing signals and generate sensing data in response to the sensing signals; and a touch detection unit having a first controller adapted to determine, based on the sensing data, whether or not a touch has been received by the sensing units and whether or not the sensing signals are in a desired range, and a second controller adapted to determine a position of the touch based on the sensing data and adapted to stabilize the sensing signals in the desired range. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15)
-
-
16. A method of controlling a touch detection unit in response to touches received by a plurality of sensing units of a display panel, the touch detection unit comprising a first controller and a second controller, the method comprising:
-
determining whether or not an external enable signal is received by the touch detection unit; supplying power to initialize operation of the touch detection unit in response to the external enable signal; performing the following in the first controller; classifying a plurality of sensing signals generated by the sensing units, storing the classified sensing signals in a memory, determining based on the sensing signals whether or not a touch has been received by the sensing units and whether or not the sensing signals are in a desired range, and setting a wakeup flag to an activated state; and performing the following in the second controller if the wakeup flag is set to the activated state; stabilizing the sensing signals in the desired range, and determining a position of the touch based on the sensing data. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25)
-
Specification