CN-224232341-U - Electronic paper screen and display device

CN224232341UCN 224232341 UCN224232341 UCN 224232341UCN-224232341-U

Abstract

The utility model discloses an electronic paper screen and a display device. The electronic paper screen comprises a communication unit, a local refreshing zone bit storage unit, a time sequence control unit, a grid driving unit, a source driving unit, a plurality of scanning lines and data lines, wherein the signal input end of the communication unit is connected with an external controller, the signal output end of the communication unit is connected with the input end of the local refreshing zone bit storage unit, the output end of the local refreshing zone bit storage unit is connected with the input end of the time sequence control unit, the first time sequence output end of the time sequence control unit is connected with the input end of the grid driving unit, and the second time sequence output end of the time sequence control unit is connected with the input end of the source driving unit. The electronic paper screen provided by the utility model can realize local refreshing of at least two non-adjacent display areas, shorten refreshing time, improve updating efficiency of the electronic paper screen, reduce power consumption and prolong service life of the electronic paper screen.

Inventors

LI YANCHEN
WU DI
ZHAO JIANGUO
HOU SHIGUO

Assignees

汉朔科技股份有限公司

Dates

Publication Date: 20260512
Application Date: 20250508

Claims (10)

1. The electronic paper screen is characterized by comprising a communication unit, a local refreshing flag bit storage unit, a time sequence control unit, a grid driving unit, a source driving unit, a plurality of scanning lines extending along a first direction and arranged along a second direction and a plurality of data lines extending along the second direction and arranged along the first direction; the communication unit is used for receiving the signal input end of the locally refreshed flag bit information and is connected with an external controller, the signal output end of the communication unit is used for outputting the locally refreshed flag bit information and is connected with the input end of the locally refreshed flag bit storage unit, the output end of the locally refreshed flag bit storage unit is connected with the input end of the time sequence control unit, the first time sequence output end of the time sequence control unit is connected with the input end of the grid drive unit, the output end of the grid drive unit is connected with the scanning line, the second time sequence output end of the time sequence control unit is connected with the input end of the source drive unit, and the output end of the source drive unit is connected with the data line; The locally refreshed flag bit information comprises position information of the scanning lines and/or the data lines corresponding to at least two non-adjacent display areas.
2. The electronic paper screen of claim 1, further comprising a driver chip, wherein the partial refresh zone bit storage unit and the timing control unit are integrated within the driver chip.
3. The electronic paper screen of claim 2, wherein the driving chip further comprises a scan signal terminal connected to the gate driving unit and a data signal terminal connected to the source driving unit.
4. The electronic paper screen of claim 2, wherein the gate driving unit includes a GOA, the driving chip includes a GOA signal terminal connected to the GOA and a data signal terminal connected to the source driving unit.
5. The electronic paper screen of claim 1, wherein the number of data lines is M, the number of scan lines is N, the electronic paper screen comprises M x N pixel units, M, N are integers greater than or equal to 1.
6. The electronic paper screen of claim 5, wherein the resolution of any one of the non-adjacent display areas is A x B, 1A M, 1B N.
7. The electronic paper screen of claim 5, wherein J rows of the pixel units correspond to one bit of local refresh flag bits, K columns of the pixel units correspond to one bit of local refresh flag bits, N rows of the pixel units correspond to N/J bits of local refresh flag bits, and M columns of the pixel units correspond to M/K bits of local refresh flag bits.
8. The electronic paper screen of claim 1, further comprising a plurality of thin film transistors, wherein gates of the thin film transistors are connected to the scan lines, and sources of the thin film transistors are connected to the data lines.
9. The electronic paper screen according to claim 1, wherein the gate driving unit is connected to one or both ends of the scan line, and the gate driving unit provides the scan signal to the scan line by means of single-side driving or double-side driving.
10. A display device comprising the electronic paper screen of any one of claims 1 to 9.

Description

Electronic paper screen and display device Technical Field The utility model relates to the technical field of display, in particular to an electronic paper screen and a display device. Background An electronic paper screen is a display screen manufactured by using an electrophoretic display technology, and a driving voltage is applied to each pixel point through a control circuit on a Thin Film Transistor (TFT) substrate so as to achieve the effect of displaying images. The electronic paper screen is used as a reflective display screen, and can be kept for a long time without continuous refreshing after image updating, so that the electronic paper screen has the characteristics of low power consumption, wide viewing angle, high contrast, eye protection and the like. In the fields of electronic price tags, advertising screens and the like, electronic paper strip screens are often applied to display more commodity information in a relatively long and narrow area. Because the information of a plurality of commodities is usually displayed on the same electronic strip-shaped screen, the electronic strip-shaped screen is required to have full-screen refreshing and partition refreshing functions, so that full-screen refreshing is performed when all commodity information is required to be updated, and regional refreshing is performed when single commodity information is updated. The existing electronic paper screen can realize full screen refreshing and single area refreshing, but when more than two non-adjacent areas need to be refreshed, the existing electronic paper screen can only be realized by adopting a mode of multiple single area refreshing, but multiple single area refreshing can cause multiple increase of refreshing power consumption. Therefore, how to implement separate refresh of non-adjacent areas in one refresh becomes a problem to be solved. Disclosure of utility model The utility model provides an electronic paper screen and a display device, wherein the electronic paper screen can realize local refreshing of at least two non-adjacent display areas, shorten refreshing time, improve updating efficiency of the electronic paper screen, reduce power consumption and prolong service life of the electronic paper screen. According to an aspect of the present utility model, there is provided an electronic paper screen, including a communication unit, a local refresh flag bit storage unit, a timing control unit, a gate driving unit, a source driving unit, a plurality of scan lines extending in a first direction and arranged in a second direction, and a plurality of data lines extending in the second direction and arranged in the first direction; the communication unit is used for receiving the signal input end of the locally refreshed flag bit information and is connected with an external controller, the signal output end of the communication unit is used for outputting the locally refreshed flag bit information and is connected with the input end of the locally refreshed flag bit storage unit, the output end of the locally refreshed flag bit storage unit is connected with the input end of the time sequence control unit, the first time sequence output end of the time sequence control unit is connected with the input end of the grid drive unit, the output end of the grid drive unit is connected with the scanning line, the second time sequence output end of the time sequence control unit is connected with the input end of the source drive unit, and the output end of the source drive unit is connected with the data line; The locally refreshed flag bit information comprises position information of the scanning lines and/or the data lines corresponding to at least two non-adjacent display areas. Optionally, the device further comprises a driving chip, wherein the local refresh zone bit storage unit and the time sequence control unit are integrated in the driving chip. Optionally, the driving chip further includes a scanning signal end and a data signal end, the scanning signal end is connected with the gate driving unit, and the data signal end is connected with the source driving unit. Optionally, the gate driving unit includes a GOA, the driving chip includes a GOA signal end and a data signal end, the GOA signal end is connected with the GOA, and the data signal end is connected with the source driving unit. Optionally, the number of the data lines is M, the number of the scan lines is N, the electronic paper screen includes m×n pixel units, and M, N are integers greater than or equal to 1. Optionally, the resolution of any one of the non-adjacent display areas is A×B, wherein A is 1-M, B is 1-N. Optionally, the J rows of the pixel units correspond to one bit of local refresh flag bit, the K columns of the pixel units correspond to one bit of local refresh flag bit, the N rows of the pixel units correspond to N/J bits of local refresh flag bit, and the M columns of the pixel units correspond to M/K bits of lo