Abstract:
A display (10) is provided with integral touch functionality. The display (10) includes a common electrode layer having row electrodes (76; VCOMR) arranged in rows and column electrodes (VCOMC) interposed between the row electrodes of each row. The row electrodes are electrically coupled by conductive paths (74). The row and column electrodes are coupled to touch sensor circuitry (68) that uses the row and column electrodes to detect touch events. Each electrode of the common electrode layer covers a respective portion of an array of pixels (52). Each pixel of the display has a respective aperture (124). The conductive paths that electrically couple row electrodes of the common electrode layer covers or otherwise blocks some light (126) from passing through pixels, resulting in reduced apertures. Dummy structures (104) are provided for other pixels that modify the apertures of the other pixels to match the reduced apertures associated with the conductive paths.
Abstract:
A display (10) is provided with integral touch functionality. The display (10) includes a common electrode layer having row electrodes (76; VCOMR) arranged in rows and column electrodes (VCOMC) interposed between the row electrodes of each row. The row electrodes are electrically coupled by conductive paths (74). The row and column electrodes are coupled to touch sensor circuitry (68) that uses the row and column electrodes to detect touch events. Each electrode of the common electrode layer covers a respective portion of an array of pixels (52). Each pixel of the display has a respective aperture (124). The conductive paths that electrically couple row electrodes of the common electrode layer covers or otherwise blocks some light (126) from passing through pixels, resulting in reduced apertures. Dummy structures (104) are provided for other pixels that modify the apertures of the other pixels to match the reduced apertures associated with the conductive paths.
Abstract:
A display may have an array of pixels. Display driver circuitry may supply data and control signals to the pixels. Each pixel may have seven transistors, a capacitor, and a light-emitting diode such as an organic light-emitting diode. The seven transistors may receive control signals using horizontal control lines. Each pixel may have first and second emission enable transistors that are coupled in series with a drive transistor and the light-emitting diode of that pixel. The first and second emission enable transistors may be coupled to a common control line or may be separately controlled so that on-bias stress can be effectively applied to the drive transistor. The display driver circuitry may have gate driver circuits that provide different gate line signals to different rows of pixels within the display. Different rows may also have different gate driver strengths and different supplemental gate line loading structures.