4 is a top view of an illustrative display with a region that is being used to provide flash illumination in accordance with an embodiment.įIGS. 3 is a cross-sectional side view of a display with an array of electrical components in accordance with an embodiment.įIG. 2 is a top view of an illustrative display in an electronic device in accordance with an embodiment.įIG. 1 is a schematic diagram of an illustrative electronic device having a display in accordance with an embodiment.įIG.
#ASUS BRIGHTNESS CONTROL DRIVER DRIVER#
The display driver circuitry may have multiplexer circuitry that selectively routes either image data or flash data to a set of pixels in a fixed flash region on the display or may have multiplexer circuitry that can be dynamically configured to place the flash region at a desired location on the display.įurther features will be more apparent from the accompanying drawings and the following detailed description. The display may have display driver circuitry that facilitates the momentary illumination of the subset of pixels with uniform flash data while image data or other suitable data is displayed in other portions of the display. Illuminating the light sensors with a flash of light from subset of the pixels overlapping the light sensor array (i.e., a flash region) may help ensure that fingerprint capture operations are performed satisfactorily. Reflected light from the user's finger may illuminate the array of light sensors for a fingerprint capture operation. The flash may illuminate a user's finger that is adjacent to the subset of pixels and the light sensor array. For example, the length of the flash may be equal to one frame time (e.g., 1/60 s in a display in which the rate at which image frames are displayed is 60 Hz). The illuminated subset of pixels can produce a flash of illumination or may otherwise be adjusted in brightness independently from pixels in the rest of the display. For example, in a configuration in which a light sensor array occupies a portion of a display, a subset of the pixels that overlaps the light sensor may be illuminated. In response to detecting the user's finger, the control circuitry can direct the display to illuminate a portion of the display or all of the display with uniform light.
#ASUS BRIGHTNESS CONTROL DRIVER WINDOWS#
The light sensors in the array may gather light readings through an array of corresponding transparent windows in the display.Ī capacitive touch sensor, proximity sensor, light detector, strain gauge sensor or other force sensor, or other sensor may be used by control circuitry in the device to monitor for the presence of a user's finger or other object over the array of light sensors. The electrical components may be an array of light sensors for capturing fingerprints from a user or for gathering information on other external objects.
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The device may have an array of electrical components mounted under the display. The display may have an array of pixels such as an array of pixels with organic light-emitting diodes or other light-emitting diodes. SUMMARYĪn electronic device may have a display. It would therefore be desirable to be able to provide improved electronic devices and display arrangements for accommodating the use of pixels to provide non-image illumination. If care is not taken, this illumination will not have desired attributes. In some situations, it may be desirable to provide non-image illumination with the pixels. During normal operation, the pixels are illuminated to display images for a user. Displays such as organic light-emitting diode displays have pixels with light-emitting diodes. This relates generally to electronic devices, and, more particularly, to electronic devices with displays.Įlectronic devices often include displays.
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15, 2015, all of which are incorporated by reference herein in their entireties. 10,157,590, which claims the benefit of provisional patent application No. 10,467,985, which is a continuation of patent application Ser. 26, 2019, which is a continuation of patent application Ser. This application is a continuation of patent application Ser.