Display backplane and display device
AssigneeWuhan China Star Optoelectronics Semiconductor Display Technology Co., Ltd.
InventorsMian ZENG, Liang SUN
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Abstract
A display backplane and a display device are provided. The display backplane includes sub-pixel units and a mirror current source module. Each sub-pixel unit includes a pixel drive circuit with an adjustment module and a light-emitting device. The mirror current source module is electrically connected to the adjustment modules in multiple pixel drive circuits and is used to adjust the adjustment currents input to the adjustment modules. The mirror current source module inputs different adjustment currents to the sub-pixel units of different colors.
Claims20
A display backplane, comprising:
- a plurality of sub-pixel units, each of the sub-pixel units comprising a pixel drive circuit and a light-emitting device, wherein in each sub-pixel unit, the pixel drive circuit comprises a signal receiving module, a signal storage module, a switch module, and an adjustment module, the signal receiving module receives a data signal from a data signal source and transmits the data signal to the signal storage module and the switch module, the signal storage module is configured to store the data signal, the switch module is configured to transmit an adjustment current from the adjustment module to the light-emitting device;
- and
- a mirror current source module, electrically connected to the adjustment modules of the pixel drive circuits, wherein the mirror current source module is configured to adjust the adjustment currents input to the adjustment modules;
- wherein the sub-pixel units comprise a plurality of first sub-pixel units, a plurality of second sub-pixel units, and a plurality of third sub-pixel units, wherein the first sub-pixel units, the second sub-pixel units, and the third sub-pixel unit emit different colors, and wherein the mirror current source module input different adjustment currents to the adjustment modules of the first sub-pixel units, the second sub-pixel units, and the third sub-pixel units.
A display device, comprising a display backplane, the display backplane comprising:
- a plurality of sub-pixel units, each of the sub-pixel units comprising a pixel drive circuit and a light-emitting device, wherein in each sub-pixel unit, the pixel drive circuit comprises a signal receiving module, a signal storage module, a switch module, and an adjustment module, the signal receiving module receives a data signal from a data signal source and transmits the data signal to the signal storage module and the switch module, the signal storage module is configured to store the data signal, the switch module is configured to transmit an adjustment current from the adjustment module to the light-emitting device;
- and
- a mirror current source module, electrically connected to the adjustment modules of the pixel drive circuits, wherein the mirror current source module is configured to adjust the adjustment currents input to the adjustment modules;
- wherein the sub-pixel units comprise a plurality of first sub-pixel units, a plurality of second sub-pixel units, and a plurality of third sub-pixel units, wherein the first sub-pixel units, the second sub-pixel units, and the third sub-pixel unit emit different colors, and wherein the mirror current source module input different adjustment currents to the adjustment modules of the first sub-pixel units, the second sub-pixel units, and the third sub-pixel units.
Dependencies are inferred from the claim text.