SEMICONDUCTOR DEVICE AND ELECTRONIC DEVICE
First Claim
1. A semiconductor device comprising:
- a touch panel controller operable to perform pulse-drive control on drive electrodes of a touch panel, and detection control of touch signals arising on detection electrodes capacitively coupling with the drive electrodes;
a processor operable to control the touch panel controller; and
a display driver operable to perform drive control of a display panel;
wherein the display driver has a memory circuit operable to rewritably store control data for drive control of the display panel from outside the semiconductor device, andthe processor controls the touch panel controller based on a command provided from outside the semiconductor device, and is capable of making access to control data in the memory circuit for controlling an internal part of the semiconductor device.
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Accused Products
Abstract
The semiconductor device has a touch panel controller, a processor, and a display driver. The display driver has a memory circuit which rewritably stores control data for drive control of a display panel from outside the semiconductor device. The processor controls the touch panel controller based on a command provided from outside the semiconductor device, and accesses control data in the memory circuit for controlling internal parts of the semiconductor device. With the aid of the arrangement like this, the processor is allowed to control a touch panel based on the read control data fit to the control by the display driver, and to control, by writing control data, the display panel fit for a control condition of the touch panel.
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Citations
13 Claims
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1. A semiconductor device comprising:
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a touch panel controller operable to perform pulse-drive control on drive electrodes of a touch panel, and detection control of touch signals arising on detection electrodes capacitively coupling with the drive electrodes; a processor operable to control the touch panel controller; and a display driver operable to perform drive control of a display panel; wherein the display driver has a memory circuit operable to rewritably store control data for drive control of the display panel from outside the semiconductor device, and the processor controls the touch panel controller based on a command provided from outside the semiconductor device, and is capable of making access to control data in the memory circuit for controlling an internal part of the semiconductor device. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9)
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10. A semiconductor device comprising:
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a touch panel controller operable to perform pulse-drive control of a plurality of drive electrodes of a touch panel, and detection control of touch signals arising on a plurality of detection electrodes capacitively coupling with the drive electrodes; a processor operable to control the touch panel controller; and a display driver operable to perform drive control of a display panel, wherein the display driver has a memory circuit operable to rewritably store control data for drive control of the display panel from outside the semiconductor device, and the processor controls the touch panel controller based on a command provided from outside the semiconductor device, and writes control data into the memory circuit according to a predetermined type of control on the touch panel controller, thereby controlling the display driver.
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11. An electronic device comprising:
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a host processor; a touch panel having a plurality of drive electrodes, a plurality of detection electrodes, and a plurality of capacitance components formed at intersections of the drive and detection electrodes; a touch panel controller operable to perform a pulse-drive control of the drive electrodes of the touch panel, and detection control of touch signals arising on the detection electrodes capacitively coupling with the drive electrodes; a processor connected with the host processor, and operable to control the touch panel controller; a display panel; and a display driver connected with the host processor, and operable to perform drive control of the display panel, wherein the display driver has a memory circuit in which control data to perform drive control of the display panel from the host processor is rewritably stored, and the processor controls the touch panel controller based on a command provided from the host processor, and refers to control data in the memory circuit to use the data for action control of the touch panel controller. - View Dependent Claims (12)
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13. An electronic device comprising:
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a host processor; a touch panel having a plurality of drive electrodes, a plurality of detection electrodes, and a plurality of capacitance components formed at intersections of the drive and detection electrodes; a touch panel controller operable to perform a pulse-drive control of the drive electrodes of the touch panel, and detection control of touch signals arising on the detection electrodes capacitively coupling with the drive electrodes; a processor connected with the host processor, and operable to control the touch panel controller; a display panel; and a display driver connected with the host processor, and operable to perform drive control of the display panel, wherein the display driver has a memory circuit in which control data to perform drive control of the display panel from the host processor is rewritably stored, and the processor controls the touch panel controller based on a command provided from the host processor, and controls the display driver by writing control data into the memory circuit according to a predetermined type of control on the touch panel controller.
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Specification