Display panel, display device and deformation unit with haptic feedback
AssigneeBoe Technology Group Co., Ltd.
InventorsJiabin Wang, Xiaoliang Ding, Yangbing Li
Life of this patent
Estimating the term…
Abstract
A display panel is disclosed. The display panel includes a back plate, a plurality of pixel units formed on the back plate, and a plurality of deformation units for providing haptic feedback. Each deformation unit is on one or more corresponding pixel units of the plurality of pixel units, and when being applied a drive voltage, undergoes a deformation corresponding to a haptic feature of a visual object displayed by the corresponding pixel units. Thereby, there is provided a display panel with haptic feedback, which is simple in structure and easy to implement.
Claims18
A display panel, comprising:
- a back plate,
- a plurality of pixel units on the back plate, and
- a plurality of deformation units configured to provide haptic feedback, wherein a respective deformation unit of the plurality of deformation units is on one or more corresponding pixel units of the plurality of pixel units, and is configured to undergo a deformation corresponding to a haptic feature of a visual object displayed by the one or more corresponding pixel units responsive to application of a drive voltage;
- wherein the respective deformation unit further comprises a deformation drive circuit on the back plate, the deformation drive circuit comprises a drive unit configured to receive a deformation data signal and output the drive voltage based on the deformation data signal;
- wherein the drive unit is further configured to receive a row scanning signal, and is configured to output the drive voltage based on the deformation data signal responsive to an active state of the row scanning signal, and wherein a magnitude of the drive voltage varies with the deformation data signal.
A deformation unit for providing haptic feedback in a display panel, the display panel comprising a back plate and a plurality of pixel units on the back plate, the deformation unit being on one or more corresponding pixel units of the plurality of pixel units and comprising:
- a substrate;
- a deformable assembly attached to the substrate and comprising a piezoelectric material, the deformable assembly comprising a free terminal and a fixed terminal attached to the substrate;
- and
- a drive electrode configured to receive a drive voltage, wherein the fixed terminal is connected to the drive electrode, and the free terminal is configured to undergo a deformation with a predetermined strength in response to a change in the drive voltage so as to undergo the deformation corresponding to a haptic feature of a visual object displayed by the one or more corresponding pixel units;
- wherein the deformation unit further comprises a deformation drive circuit on the back plate, the deformation drive circuit comprises a drive unit configured to receive a deformation data signal and output the drive voltage based on the deformation data signal;
- wherein the drive unit is further configured to receive a row scanning signal, and is configured to output the drive voltage based on the deformation data signal responsive to an active state of the row scanning signal, and wherein a magnitude of the drive voltage varies with the deformation data signal.
Dependencies are inferred from the claim text.