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Patent
Himax Technologies | Date: 2015-09-30

A driving apparatus and a method for driving a display panel thereof are provided. The driving apparatus includes an output buffer, a switch, an adjusting circuit, a digital-to-analog converter and a code detecting unit. The output buffer provides an output voltage to a load according to a static current determining a speed of the output voltage reaching a target voltage for driving the load. The switch is coupled between the output buffer and the load in series, and is turned on or off according to a control signal. The code detecting unit detects an input code. The adjusting circuit determines whether the input code varies when the control signal is enabled, and disables a high driving ratio signal when the input code does not vary when the control signal is enabled. An enabling period of the high driving ratio signal is different from an enabling period of the control signal.


Patent
Himax Technologies | Date: 2015-09-01

A touch driving apparatus, a touch driving method, and a touch display system are provided. The touch display system includes a touch display panel, a common voltage generator, and a touch driving apparatus. The touch driving apparatus includes a driving circuit, a capacitor, and a sensing circuit. An output terminal of the driving circuit is electrically connected to a driving electrode line of the touch display panel. During a touch driving period, the driving circuit outputs a driving signal to the driving electrode line. A first terminal of the capacitor is electrically connected to a common electrode line of pixels of the touch display panel. An input terminal of the sensing circuit is electrically connected to a second terminal of the capacitor. During a touch driving period, the sensing circuit senses the common electrode line through the capacitor to detect a touch event of the touch display panel.


Patent
National Chiao Tung University and Himax Technologies | Date: 2016-11-03

A silicon-controlled rectifier (SCR) includes a first-type field, a second-type first field and a second-type second field disconnectedly formed in a first-type well; an entire first-type doped region formed within the first-type field; a segmented second-type doped region formed within the second-type first field; and a segmented first-type doped region formed within the second-type second field.


Patent
National Taiwan University and Himax Technologies | Date: 2015-09-01

A multi-view 3D video method and system are disclosed. 3D points of an initial 3D model are projected back into back-projected points in image space. The back-projected points are compared with pixel points in next frames from multiple viewpoints. The pixel points in the next frames are updated according to comparing result between the back-projected points and the pixel points. Depth of the back-projected point is point-wise compared with depth of the corresponding pixel point. A farther point of the back-projected point and the corresponding pixel point, which are not similar in depth, are preserved, and the preserved farther point is used to update the pixel point in the next frame.


Patent
Himax Technologies | Date: 2016-11-16

The present invention is directed to a method of driving an in-cell touch screen. In one embodiment, adjacent common voltage (VCOM) electrodes, a source line and/or a gate line is set high-impedance, such that an equivalent capacitor is not possessed by the current VCOM electrode. In another embodiment, a gate line is set high-impedance in the touch sensing mode. A voltage waveform of the current VCOM electrode is applied to adjacent VCOM electrodes abutting the current VCOM electrode and/or to a source line, such that an equivalent capacitor has no effect on the current VCOM electrode.


Patent
Himax Technologies | Date: 2015-05-12

A metal-insulation-metal (MIM) device including a first metal layer, a first insulation layer, a second metal layer, and a second insulation layer is provided. The first insulation layer is disposed on the first metal layer. The second metal layer is disposed on a part of the first insulation layer. The second insulation layer is disposed on a side wall of the second metal layer and on another part of the first insulation layer. A width of the first insulation layer under the second metal layer and the second insulation layer parallel to the first metal layer is greater than a with of the second metal layer parallel to the first metal layer.


A driver integrated circuit (IC) (102) is arranged to selectively operate in a display mode and a touch-sensing mode when the driver IC (102) is coupled to a touch display panel (101). When the driver IC (102) operates in the display mode, the driver IC (102) controls a plurality of common voltage lines of the touch display panel (101) to have a common voltage. When the driver IC (102) operates in the touch-sensing mode, the driver IC (102) controls a first source line of the touch display panel (101) which corresponds to a specific common voltage line, or controls a neighboring common voltage line of the specific common voltage line, to have a first signal pattern the same as the first signal pattern on the specific voltage line or to be floating, wherein the specific common voltage line is arranged to detect touch currently.


Patent
Himax Technologies | Date: 2015-07-21

The present invention is directed to a method of driving an in-cell touch screen. Source lines underlying a current VCOM electrode are divided into n groups. A first voltage is applied at the current VCOM electrode in a conversion phase of each sensing period. A second voltage is applied at each group of the source lines underlying the current VCOM electrode in a manner such that no net charge being contributed to the VCOM electrode by the underlying source lines, thereby parasitic capacitors associated with the current VCOM electrode having no effect on touch sensing result.


Patent
Himax Technologies | Date: 2015-07-23

A wafer level lens system includes a target lens and a wafer level lens group. The target lens includes a first surface, a second surface, and a first fitting structure. The second surface is opposite to the first surface. The first fitting structure is disposed at the second surface. The wafer level lens group includes a first transparent plate and a second fitting structure. The first transparent plate has a third surface and a fourth surface opposite to the third surface. The second fitting structure is disposed on the third surface. The first fitting structure is fitted into the second fitting structure, and there is a space encapsulated between the second surface and the third surface.


Patent
Himax Technologies | Date: 2016-09-28

A driver integrated circuit (102), hereinafter driver IC, arranged to selectively operate in a display mode, a self-capacitor mode and a mutual-capacitor mode when the driver IC (102) is coupled to a touch display panel (101), wherein when the driver IC (102) operates in the display mode, the driver IC (102) outputs display data to a plurality of source lines of the touch display panel (101); when the driver IC (102) operates in the self-capacitor mode, the driver IC (102) controls the source lines to have a predetermined voltage; and when the driver IC (102) operates in the mutual-capacitor mode, the driver IC (102) sequentially sends an impulse signal to the source lines.

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