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CN-121477466-B - Display panel and display device

CN121477466BCN 121477466 BCN121477466 BCN 121477466BCN-121477466-B

Abstract

The application discloses a display panel and display equipment. The display panel comprises a first substrate, a pixel layer and a second substrate which are sequentially stacked, wherein a plurality of pixel units are arranged in the pixel layer. The pixel unit comprises a partition wall, a first electrode, a second electrode and a telescopic bag, wherein the telescopic bag is filled with a second solution, and the second solution contains a colorant and an ion embedded material. The degree of electrochemical reaction can be adjusted by precisely controlling the voltage and current applied by the electrodes, so that the dynamic regulation and control of the expansion and contraction states of the telescopic bag are realized, and the distribution of the colorant can be directly changed due to the fact that the colorant cannot pass through the bag wall of the telescopic bag, so that the optical reflectivity or the color display effect of the pixel unit is changed. The space ratio of the colorant in the accommodating cavity can be accurately controlled by adjusting the expansion degree of the telescopic bag, so that the fine adjustment and control of gray level are realized, and the pixel unit presents multi-level gray level.

Inventors

  • LI JIAJUN
  • WEI LILAN
  • PU HONG
  • LI JIEWEI

Assignees

  • 惠科股份有限公司

Dates

Publication Date
20260508
Application Date
20251231

Claims (10)

  1. 1. The display panel is characterized by comprising a first substrate, a pixel layer and a second substrate which are sequentially stacked, wherein a plurality of pixel units are arranged in the pixel layer; the pixel unit comprises a partition wall, a first electrode, a second electrode and a telescopic bag; The isolation wall, the first substrate and the second substrate are enclosed to form a closed accommodating cavity, and the accommodating cavity is filled with a first solution; the first electrode and the second electrode are respectively arranged on the first substrate and the second substrate and are contacted with the first solution; the telescopic bag is fixed in the accommodating cavity, and is filled with a second solution, wherein the second solution contains a colorant and an ion embedded material; When the first electrode and the second electrode provide a first voltage to enable the ion embedding type material to discharge, partial ions in the ion embedding type material are de-embedded; when the first electrode and the second electrode provide a second voltage to charge the ion-intercalating material, the deintercalated ions are re-intercalated into the ion-intercalating material.
  2. 2. The display panel of claim 1, wherein the first solution is a transparent solution containing sodium ions and the second solution has molybdenum disulfide dissolved therein.
  3. 3. The display panel of claim 2, wherein sodium sulfate is dissolved in the first solution.
  4. 4. The display panel of claim 1, wherein the walls of the bellows are comprised of a flexible anion-selective permeable membrane.
  5. 5. The display panel of claim 1, wherein the colorant comprises carbon black nanoparticles.
  6. 6. The display panel of any one of claims 1 to 5, wherein the second substrate, the second electrode, and the partition wall are all transparent materials.
  7. 7. The display panel of any one of claims 1 to 5, further comprising a light reflective layer disposed between the first electrode and the first substrate, wherein an orthographic projection of the receiving cavity on the first substrate is located within an orthographic projection of the light reflective layer on the first substrate.
  8. 8. A display panel as claimed in any one of claims 1 to 5, characterized in that the first electrodes of the respective pixel cells are arranged independently of each other.
  9. 9. A display panel as claimed in any one of claims 1 to 5, characterized in that the second electrodes of the respective pixel cells are electrically connected to each other.
  10. 10. A display device comprising a display panel as claimed in any one of claims 1 to 9 and a drive unit connected to the display panel for providing a drive voltage.

Description

Display panel and display device Technical Field The application belongs to the technical field of display equipment, and particularly relates to a display panel and display equipment. Background Currently, the mainstream reflective display technology is an electrophoretic electronic ink screen. Although the color-changing liquid crystal display has the advantages of bistable state and low power consumption, the color-changing liquid crystal display also has the problems of low refresh rate, residual shadow, dark color when colorization is realized, and the like. Other display technologies, such as LCD/OLED, have the disadvantages of high power consumption, backlight requirement, blue light eye injury, etc. Disclosure of Invention The application aims to provide a display panel and display equipment, and aims to solve the technical problems that the energy consumption and the actual effect are difficult to be considered in the traditional electronic ink screen. The first aspect of the embodiment of the application provides a display panel, which comprises a first substrate, a pixel layer and a second substrate which are sequentially stacked, wherein a plurality of pixel units are arranged in the pixel layer. The pixel unit comprises a partition wall, a first electrode, a second electrode and a telescopic bag. The isolation wall is enclosed with the first substrate and the second substrate to form a closed accommodating cavity, and the accommodating cavity is filled with a first solution. The first electrode and the second electrode are disposed on the first substrate and the second substrate, respectively, and are in contact with the first solution. The telescopic bag is fixed in the accommodating cavity, and is filled with a second solution, wherein the second solution contains a colorant and an ion embedded material. Wherein, when the first electrode and the second electrode discharge the ion embedded material, partial ions in the ion embedded material are deintercalated; the deintercalated ions are re-intercalated into the ion-intercalating material when the first electrode and the second electrode charge the ion-intercalating material. In one embodiment, the first solution is a transparent solution containing sodium ions, the second solution is dissolved with molybdenum disulfide, and the second solution contains a colorant. In one embodiment, sodium sulfate is dissolved in the first solution. In one embodiment, the walls of the bellows are comprised of a flexible anion-selective permeable membrane. In one embodiment, the colorant comprises carbon black nanoparticles. In one embodiment, the second substrate and the partition wall are made of transparent materials. In one embodiment, the display panel further includes a reflective layer disposed between the first electrode and the first substrate, and the orthographic projection of the accommodating cavity on the first substrate is located in the orthographic projection of the reflective layer on the first substrate. In one embodiment, the first electrodes of the pixel units are disposed independently of each other. In one embodiment, the second electrodes of the pixel units are electrically connected to each other. A second aspect of the embodiments of the present application provides a display device, including a display panel as described above and a driving unit connected to the display panel for providing a driving voltage. Compared with the prior art, the embodiment of the application has the beneficial effects that the degree of electrochemical reaction can be adjusted by accurately controlling the voltage and the current applied by the first electrode and the second electrode, so that the dynamic adjustment and control of the expansion and contraction states of the telescopic bag are realized, and the distribution of the colorant can be directly changed due to the fact that the colorant cannot pass through the bag wall of the telescopic bag, so that the optical reflectivity or the color display effect of the pixel unit is changed. The process has the advantages of quick response, low energy consumption, no continuous power supply, maintenance of the state, excellent stability and remarkable improvement of the energy consumption and visual performance of the display panel. The space ratio of the colorant in the accommodating cavity can be accurately controlled by adjusting the expansion degree of the telescopic bag, so that the fine adjustment and control of gray level are realized, and the pixel unit presents multi-level gray level. Drawings FIG. 1 is a schematic cross-sectional view of a display panel according to an embodiment of the application; Fig. 2 is a schematic layout diagram of a pixel unit according to an embodiment of the application; FIG. 3 is a schematic view illustrating an inflation process of a bellows according to an embodiment of the present application; Fig. 4 is a schematic diagram of a display device according to an embodime