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CN-122018214-A - Electronic paper display and driving method

CN122018214ACN 122018214 ACN122018214 ACN 122018214ACN-122018214-A

Abstract

The invention discloses an electronic paper display and a driving method thereof, wherein the electronic paper display comprises an array substrate, an opposite substrate and an ink capsule, a first electrode layer is arranged on one side of the opposite substrate facing the ink capsule, the first electrode layer comprises a plurality of rectangular electrode blocks distributed in an array, the rectangular electrode blocks are provided with a first rectangular electrode block and a second rectangular electrode block, the opposite substrate is provided with a plurality of first touch running lines and a plurality of second touch running lines, each first touch running line is formed by connecting the first rectangular electrode blocks, and each second touch running line is formed by connecting the second rectangular electrode blocks. And in the touch control time period, one of the first touch control wiring and the second touch control wiring is applied with a touch control driving signal, and the other is applied with a touch control induction signal, so that the first electrode layer is used as a touch control electrode.

Inventors

  • FANG SONG
  • LI JING

Assignees

  • 昆山龙腾光电股份有限公司

Dates

Publication Date
20260512
Application Date
20260323

Claims (10)

  1. 1. The electronic paper display is characterized by comprising an array substrate (20), a counter substrate (10) and an ink capsule (30), wherein the counter substrate (10) is arranged opposite to the array substrate (20), the ink capsule (30) is positioned between the array substrate (20) and the counter substrate (10), black particles (31) and white particles (32) with opposite polarities are arranged in all the ink capsules (30), a plurality of pixel electrodes (21) distributed in an array are arranged on the array substrate (20), a first electrode layer (13) is arranged on one side of the counter substrate (10) facing the ink capsule (30), the first electrode layer (13) comprises a plurality of rectangular electrode blocks distributed in an array, a plurality of rectangular electrode blocks (131) and a second rectangular electrode block (132) are arranged in the rectangular electrode blocks, a plurality of first touch running lines (X1) and a plurality of second touch running lines (X2) are arranged in the counter substrate (10), each first touch running line (X1) is formed by a plurality of rectangular electrode blocks, the first touch running lines (X1) and the second touch running lines (X2) are connected with each other in a cross mode, the first touch running lines (X1) and the second touch running lines (X2) are formed by the first touch running lines (X1) and the second touch running lines (X2), the other one is a touch sensing electrode; And in the touch control time period, one of the first touch control wiring (X1) and the second touch control wiring (X2) applies a touch control driving signal, and the other applies a touch control induction signal.
  2. 2. The electronic paper display according to claim 1, wherein the second rectangular electrode blocks (132) are spaced between any two adjacent first rectangular electrode blocks (131), and the first rectangular electrode blocks (131) are spaced between any two adjacent second rectangular electrode blocks (132).
  3. 3. The electronic paper display according to claim 2, wherein the rectangular electrode blocks of odd rows and odd columns are each the first rectangular electrode block (131), and the rectangular electrode blocks of odd rows and even columns are each the second rectangular electrode block (132); The rectangular electrode blocks of even rows and odd columns are the second rectangular electrode blocks (132), and the rectangular electrode blocks of even rows and even columns are the first rectangular electrode blocks (131).
  4. 4. The electronic paper display according to claim 1, wherein a second electrode layer (14) located at a different layer from the first electrode layer (13) is provided on the counter substrate (10), the second electrode layer (14) including a plurality of bridging electrodes (141), the first electrode layer (13) including a plurality of connection electrodes (133); The first rectangular electrode blocks (131) in each first touch wire (X1) are connected together through the connecting electrode (133), the second rectangular electrode blocks (132) in each second touch wire (X2) are connected together through the bridging electrode (141), or the first rectangular electrode blocks (131) in each first touch wire (X1) are connected together through the bridging electrode (141), and the second rectangular electrode blocks (132) in each second touch wire (X2) are connected together through the connecting electrode (133).
  5. 5. The electronic paper display according to claim 1, wherein a plurality of scanning lines (1), a plurality of data lines (2) and a plurality of thin film transistors (3) are arranged on the array substrate (20), a plurality of pixel units (P) are formed by mutually insulating and crossing the scanning lines (1) and the data lines (2), the thin film transistors (3) and the pixel electrodes (21) are arranged in each pixel unit (P), and the pixel electrodes (21) are electrically connected with the corresponding scanning lines (1) and the corresponding data lines (2) through the thin film transistors (3); the gaps between the rectangular electrode blocks correspond to the scanning lines (1) and the data lines (2).
  6. 6. The electronic paper display of claim 5, wherein each of the rectangular electrode blocks corresponds to a plurality of the pixel units (P).
  7. 7. The electronic paper display according to any one of claims 1-6, wherein the electronic paper display has a display area (110) and a non-display area (120) located at the periphery of the display area (110), a first binding area (130) and a second binding area (140) are provided on the same side of the non-display area (120), a first protrusion (101) and a first notch (102) are provided on the edge of the opposite substrate (10), the first binding area (130) is located at the first protrusion (101), a second protrusion (201) and a second notch (202) are provided on the edge of the array substrate (20), the second binding area (140) is located at the second protrusion (201), the second protrusion (201) corresponds to the first notch (102), the first protrusion (101) corresponds to the second notch (202), and the projections of the first protrusion (101) and the second protrusion (201) on the electronic paper display are completely staggered.
  8. 8. The electronic paper display according to claim 7, wherein the first protrusion (101) is located between the two first gaps (102), the second gap (202) is located between the two second protrusions (201), or the first protrusions (101) and the first gaps (102) are distributed left and right at the edge of the opposite substrate (10), and the second gaps (202) and the second protrusions (201) are distributed left and right at the edge of the array substrate (20).
  9. 9. Electronic paper display according to any of claims 1-6, characterized in that the counter substrate (10) is provided with a color resist layer (12) and a black matrix (11) spacing the plurality of color resist layers (12) from each other; The black matrix (11) and the color resist layer (12) are located on a side of the first electrode layer (13) facing the ink capsule (30), or the black matrix (11) and the color resist layer (12) are located on a side of the first electrode layer (13) facing the counter substrate (10).
  10. 10. A driving method for an electronic paper display, characterized in that it is used for driving the electronic paper display according to any one of claims 1 to 9, the driving method comprising: applying a common voltage signal to all the rectangular electrode blocks in the first electrode layer (13) during a display period to form a storage capacitance with the pixel electrode (21); In the touch time period, a touch driving signal is applied to one of the first touch wire (X1) and the second touch wire (X2), wherein a touch sensing signal is applied to the other one of the first touch wire (X1) and the second touch wire (X2), so that a touch capacitor is formed between the first touch wire (X1) and the second touch wire (X2).

Description

Electronic paper display and driving method Technical Field The present invention relates to the field of display technologies, and in particular, to an electronic paper display and a driving method thereof. Background The display panel has the advantages of light weight, durability, energy conservation, environmental protection, low power consumption and the like, but needs to be matched with a backlight source, so that the module is thick and the cost is high. The electronic paper display (reflective display) is a display meeting the needs of the public, and the electronic paper display can display images by using an external light source, unlike a liquid crystal display which needs a backlight, so that information on the electronic paper can still be clearly seen in an environment with strong outdoor sunlight without a problem of visual angle, and the electronic paper display has been widely applied to electronic readers (such as electronic books and electronic newspapers) or other electronic components (such as price tags) because of the advantages of power saving, high reflectivity, contrast ratio and the like. Existing electronic paper displays typically employ E-Ink microcapsule technology (microcapsule electronic Ink technology), siPix microcup technology (microcup electrophoretic display technology), bridgestone electronic liquid powder technology, cholesterol liquid crystal display (Cholesteric Liquid CRYSTAL DISPLAY, CLCD) technology, microelectromechanical systems (MEMS) technology, or electrowetting (electrowetting) technology. However, the existing electronic paper display technology is not mature relatively to the liquid crystal display technology, and has low mass production efficiency and relatively high manufacturing cost. In addition, since the conventional electronic paper display is configured to control a picture by forming a vertical electric field between the pixel electrode and the common electrode, in order not to affect normal display of the picture, the conventional electronic paper display generally cannot implement an In-cell (In-cell) touch mode, i.e., cannot set the touch electrode In the electronic paper display, and if the touch electrode is set In the sub-paper display, interference with the pixel electrode and the common electrode occurs, or a touch function cannot be implemented, or display quality is poor. Therefore, the existing electronic paper display usually adopts an external embedded (On-cell) touch mode, and the external embedded (On-cell) touch mode has the disadvantages of complex process, high cost, thicker box thickness, unfavorable light thinning development, 5% of light transmittance loss and reduced display brightness of the electronic paper display. Disclosure of Invention In order to overcome the defects and shortcomings in the prior art, the invention aims to provide an electronic paper display and a driving method thereof, so as to solve the problems of high cost and low light transmittance caused by the fact that the electronic paper display adopts an embedded touch control mode in the prior art. The aim of the invention is achieved by the following technical scheme: The invention provides an electronic paper display, which comprises an array substrate, a counter substrate arranged opposite to the array substrate and an ink capsule arranged between the array substrate and the counter substrate, wherein all the ink capsules are internally provided with black particles and white particles with opposite polarities, a plurality of pixel electrodes distributed in an array are arranged on the array substrate, one side of the counter substrate, which faces the ink capsule, is provided with a first electrode layer, the first electrode layer comprises a plurality of rectangular electrode blocks distributed in an array, a first rectangular electrode block and a second rectangular electrode block are arranged in the plurality of rectangular electrode blocks, a plurality of first touch wires and a plurality of second touch wires are arranged on the counter substrate, each first touch wire is formed by connecting a plurality of first rectangular electrode blocks, each second touch wire is formed by connecting a plurality of second rectangular electrode blocks, the extending directions of the first touch wires and the second touch wires are crossed, and the first touch wires and the second touch wires are driven to one of the other touch wires; And in the touch control time period, one of the first touch control wire and the second touch control wire is applied with a touch control driving signal, and the other one of the first touch control wire and the second touch control wire is applied with a touch control induction signal. Further, the second rectangular electrode blocks are spaced between any two adjacent first rectangular electrode blocks, and the first rectangular electrode blocks are spaced between any two adjacent second rectangular electrode blocks. Fur