DISPLAY PANEL, OPTICAL SENSOR, AND MEASUREMENT METHOD

摘要

A display panel includes a first substrate, a shading module, a second substrate, optical sensors, and a parallel-to-serial converter. The shading module is disposed on the first substrate. The second substrate is disposed corresponding to the first substrate. The optical sensors are disposed on the second substrate, and are disposed corresponding to the shading module. The optical sensors are configured to output sensing signals according to an offset amount between the optical sensors and the shading module. One of the optical sensors includes a first switch and a second switch, in which the first switch and the second switch are coupled in cascade. The parallel-to-serial converter is configured to generate the serial signal according to the sensing signals.

主权项

1. A display panel, comprising:
a first substrate; a shading module disposed on the first substrate; a second substrate disposed corresponding to the first substrate; a plurality of optical sensors disposed on the second substrate and disposed corresponding to the shading module, wherein the optical sensors are configured to output a plurality of first sensing signals according to a shift amount between the optical sensors and the shading module; and a parallel-to-serial converter configured to generate a serial signal according to the first sensing signals, wherein a first optical sensor of the optical sensors comprises a first switch and a second switch, a first terminal of the first switch is configured to receive a first system voltage, a second terminal of the first switch is configured to output one of the first sensing signals, a control terminal of the first switch is coupled to the second terminal of the first switch, a first terminal of the second switch is coupled to the second terminal of the first switch, a second terminal of the second switch is configured to receive a second system voltage, the first system voltage is higher than the second system voltage, and a control terminal of the second switch is coupled to the second terminal of the second switch.