Electronic paper display panel and electronic paper display equipment
By directly connecting and uniformly controlling the pixels in the border area, the multi-step problem of changing the screen shape of electronic paper display panels is solved, enabling low-cost and rapid product updates.
Patent Information
- Application Number
- CN202423074760.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-12
- Publication Date
- 2025-11-18
- Estimated Expiration
- 2034-12-12
AI Technical Summary
When changing the screen shape of existing e-paper display panels, modifying the pixels in the bezel area involves multiple processes, leading to increased time and cost. In particular, when cutting a right-angled screen into a rounded-corner screen, it is necessary to redesign multiple layers of molds.
By directly connecting the second source and second drain of the pixels in the border area and controlling them uniformly through the gate line, the signal transmission of the pixels in the border area only requires changing the process of the thin film transistor layer, and reusing the mold structure of the pixels in the display area, reducing the number of modification steps.
While maintaining the same mold design, the process of modifying pixels in the border area was simplified, reducing time and production costs and enabling rapid updates.
Smart Images
Figure CN223566011U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of display panels, in particular to an electronic paper display panel and an electronic paper display device. BACKGROUND
[0002] At present, in the display panel of electronic paper, there are mainly two kinds of pixels, wherein the display area pixel is used for displaying text, pictures and the like, as a conventional pixel directly contacted by the user. The other kind of frame area pixel is located at the four sides of the conventional pixel, and is used for providing support force for forming the conventional pixel in the production stage. These frame area pixels are uniformly controlled by a large-area ITO (Indium Tin Oxide) electrode covered in the subsequent use of the product, and are usually not used for displaying content. However, when producing screens of different shapes, such as cutting a right-angle screen into a round-corner screen, it is necessary to redesign the frame area pixels affected. Since the design of the pixel involves multiple processes such as gate, drain, source and ITO electrode, a lot of effort is needed when modifying, and the molds of multiple processes related to production also need to be redesigned.
[0003] Therefore, there is a need for a structure of a display panel capable of reducing the processes when modifying. SUMMARY
[0004] The purpose of the present application is to provide a structure of a display panel capable of reducing the processes when modifying.
[0005] In order to achieve the above-mentioned purpose, the present application provides an electronic paper display panel and an electronic paper display device.
[0006] In a first aspect, the present application provides an electronic paper display panel, comprising: a display area and a frame area, the display area comprising a plurality of display area pixels, each display area pixel comprising a first gate electrode, a first drain electrode, a first source electrode, a first common electrode, a first square ITO, a thin film transistor and a first via hole, the first source electrode being vertically arranged on the left and right sides of the display area pixel, the first gate electrode being horizontally arranged on the upper and lower sides of the display area pixel, the first drain electrode and the first square ITO being conductive through the first via hole, and the thin film transistor being connected between the first source electrode and the first drain electrode; the frame area being arranged around the display area, the frame area comprising a plurality of frame area pixels, each frame area pixel comprising a second gate electrode, a second drain electrode, a second source electrode, a second common electrode, a second square ITO and a second via hole; wherein the first gate electrode and the second gate electrode are of the same size and have the same position, the first drain electrode and the second drain electrode are of the same size and have the same position, the first source electrode and the second source electrode are of the same size and have the same position, the first common electrode and the second common electrode are of the same size and have the same position, the first square ITO and the second square ITO are of the same size and have the same position, the first via hole and the second via hole are of the same size and have the same position, the plurality of second gate electrodes are conductive to each other, the second source electrode and the second drain electrode are directly connected, and the second drain electrode and the second square ITO are conductive through the second via hole.
[0007] In an embodiment, the electronic paper display panel further comprises a control chip, and the frame area further comprises a collection sheet arranged at the edge of the frame area, the collection sheet being connected to the control chip, the second gate electrodes of the plurality of frame area pixels being connected in the vertical direction, and the connected second gate electrodes being connected to the collection sheet.
[0008] In another embodiment, the electronic paper display panel further comprises a substrate, and the four corners of the substrate are in the shape of a circular arc or a right angle.
[0009] In another embodiment, the electronic paper display panel further comprises a glass cover plate arranged on the upper layer of the substrate, and the glass cover plate and the substrate are of the same shape.
[0010] In an embodiment, the plurality of frame area pixels surround the display area pixel at least once.
[0011] In a second aspect, the present application provides an electronic paper display device, comprising a power supply, a housing, a controller and an electronic paper display panel provided in the first aspect of the present application; wherein the power supply is used to supply power to the electronic paper display panel and the controller, and the power supply, the controller and the electronic paper display panel are fixed in the housing.
[0012] In an embodiment, the electronic paper display device further comprises a touch panel installed above the electronic paper display panel.
[0013] In another embodiment, the power supply is a rechargeable battery.
[0014] Compared with the prior art, the electronic paper display panel and the electronic paper display device have the beneficial effects that:
[0015] The electronic paper display panel and the electronic paper display device have the beneficial effects that: BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 is a variation schematic diagram of an electronic paper display panel.
[0017] Figure 2 is a structural schematic diagram of an electronic paper display panel.
[0018] Figure 3 is a structural schematic diagram of an electronic paper display panel with a current collecting sheet.
[0019] Figure 4 is a schematic diagram of an electronic paper display device.
[0020] REFERENCE NUMERALS:
[0021] 1. An electronic paper display device, 10, an electronic paper display panel, 101, a display area, 1011, a display area pixel, 10111, a first gate, 10112, a first drain, 10113, a first source, 10114, a first common electrode, 10115, a first square ITO, 10116, a thin film transistor, 10117, a first via, 102, a frame area, 1021, a frame area pixel, 10211, a second gate, 10212, a second drain, 10213, a second source, 10214, a second common electrode, 10215, a second square ITO, 10216, a second via, 103, a current collecting sheet, 104, a control chip, 20, a power supply, 30, a shell, 40, a controller. DETAILED DESCRIPTION
[0022] The specific embodiments of this application will be described in further detail below with reference to the accompanying drawings and examples. The following examples are used to illustrate this application, but are not intended to limit the scope of this application.
[0023] like Figure 1 As shown, the electronic paper display panel 10 has two areas with different display pixels. The pixels in the display area 101 are used to display normal content, such as pictures and text. The pixels in the border area 102 are a product to ensure the pixel pass rate of the display area 101 and to avoid the impact of edge effects on the display area pixels 1011.
[0024] The shape and size of the bezel area 102 are similar to the pixels of the display area 101, but since individual control of each pixel is not required, a large ITO (Internet Tolerancing) is often used to cover it. A single ITO covers the entire bezel area 102, and conductivity is achieved through additional external wiring. The pixels of the display area 101 do not have these wirings or large ITOs. Therefore, when the required screen shape changes, such as… Figure 1 In converting a right-angled screen to a rounded-corner screen, the pixels at the corners need to be trimmed. Because the border area changes, the I / O dimensions of the pixels in the border area 102 and the surrounding connections need to be rearranged. Since the pixels in the border area 102 and the display area 101 are produced simultaneously, every layer involved in the changes to the border area 102 requires redesigning the drawings and molds, resulting in a heavy workload and increased time and production costs. For product lines with tight production schedules, this can easily lead to project delays.
[0025] Based on this, such as Figure 2As shown, the electronic paper display panel 10 of the preferred embodiment of the present application comprises a display area 101 and a frame area 102, the frame area 102 is arranged around the display area 101, the display area 101 comprises a plurality of display area pixels 1011, and the frame area 102 comprises a plurality of frame area pixels 1021. The display area pixel 1011 comprises a first gate 10111, a first drain 10112, a first source 10113, a first common electrode 10114, a first square ITO 10115, a thin film transistor 10116 and a first via 10117 which are stacked in layers, the first source 10113 is vertically arranged on the left and right sides of the display area pixel 1011, the first gate 10111 is horizontally arranged on the upper and lower sides of the display area pixel 1011, the first drain 10112 and the first square ITO 10115 are connected through the first via 10117, and the thin film transistor 10116 is connected between the first source 10113 and the first drain 10112. The frame area pixel 1021 comprises a second gate 10211, a second drain 10212, a second source 10213, a second common electrode 10214, a second square ITO 10215 and a second via 10216 which are stacked in layers.
[0026] In the present application, the "positions" in the "same positions" refer to the relative positions of the drain, the source, the via and other components in the pixel. For example, the first via 10117 and the second via 10216 are in the same position, which means that the position of the first via 10117 in the display area pixel is the same as the position of the second via 10216 in the frame area pixel. The related descriptions of other components are not repeated here.
[0027] In the present application, the "positions" in the "same positions" refer to the relative positions of the drain, the source, the via and other components in the pixel. For example, the first via 10117 and the second via 10216 are in the same position, which means that the position of the first via 10117 in the display area pixel is the same as the position of the second via 10216 in the frame area pixel. The related descriptions of other components are not repeated here.
[0028] By the above scheme, whether the pixel is a display area pixel 1011 can be determined by whether the thin film transistor 10116 is covered or not, for the pixels of the frame area 102, the second source 10213 and the second drain 10212 are directly connected, the function of the second drain 10212 is reused, and the second source 10213 and the second drain 10212 are no longer inactive transistor control lines, but become unified control lines of the frame area pixels 1021.
[0029] Since the frame area pixels 1021 do not have the thin film transistor 10116 at the beginning of the design, when the frame area pixels 1021 need to be modified, at least the modification amount of the layer where the thin film transistor 10116 is located is reduced, thereby saving time. At the same time, since the size and position of the first gate 10111, the first drain 10112, the first source 10113, the first common electrode 10114, the first square ITO 10115, the first via 10117, the second gate 10211, the second drain 10212, the second source 10213, the second common electrode 10214, the second square ITO 10215, and the second via 10216 are all equal, the layers involved in the structures such as the second gate 10211, the second drain 10212, the second source 10213, the second common electrode 10214, the second square ITO 10215, and the second via 10216 of the frame area pixels 1021 can reuse the corresponding structures of the display area pixels 1011 as a mold, thereby reducing the modification amount and further reducing the time cost, which is beneficial to low-cost and rapid product line update.
[0030] On the basis of the scheme of the present application, in order to better realize unified control of the frame area pixels 1021, in an embodiment of the present application, as Figure 3 The electronic paper display panel 10 can further include a control chip 104, and the frame area 102 can further include a collection sheet. The collection sheet is placed at the edge of the frame area 102, and the collection sheet is connected with the control chip 104. The second gates 10211 of the plurality of frame area pixels 1021 are connected in the vertical direction, and the connected second gates 10211 are all connected with the collection sheet.
[0031] By connecting each second gate 10211 through the collection sheet, the control chip 104 is uniformly connected, and when the backlight needs to be enhanced, the frame area pixels 1021 can be turned on at the same time.
[0032] In the present application, the collection sheet can be printed on the same layer as the second gate 10211 and the first gate to reduce design cost. In a zeroth embodiment, the collection sheet can also be printed on a layer different from the first gate 10111 and the second gate 10211, and a via is provided on the collection sheet to connect the collection sheet with the first gate 10111 and the second gate 10211.
[0033] In any embodiment of the present application, the electronic paper display panel 10 can further include a substrate, and four corners of the substrate are in a circular arc shape or a right angle shape.
[0034] The design in the circular arc shape or the right angle shape, and the modification from the circular arc shape to the right angle shape or the modification from the circular arc shape to the right angle shape do not require a large time cost.
[0035] On the basis of the above scheme, in another embodiment of the present application, the electronic paper display panel 10 can further include a glass cover plate, and the glass cover plate is arranged on an upper layer of the substrate, and the glass cover plate and the substrate have the same shape.
[0036] In an embodiment, in order to better ensure the quality of the display area pixels 1011, the bezel area pixels 1021 surround the display area pixels 1011 at least once.
[0037] The bezel area pixels 1021 surrounding the display area pixels 1011 once or multiple times can be applied to the scheme of the present application, and the bezel area pixels 1021 once or multiple times all have the same second gate 10211 and the like, and thus do not affect the conduction of each second gate 10211.
[0038] Correspondingly, as Figure 4 The present application also provides an electronic paper display device 1, which can include a power supply 20, a shell 30, a controller 40, and the electronic paper display panel 10 provided in any embodiment of the present application.
[0039] The power supply 20 is configured to supply power to the electronic paper display panel 10 and the controller 40, and the power supply 20, the controller 40, and the electronic paper display panel 10 are all fixed in the shell 30.
[0040] It can be understood that the shape of the electronic paper display device 1 is not limited in the present application, and the shape of the electronic paper display device 1 can be rectangular, rounded rectangular, circular, irregular, foldable structure, telescopic structure, and the like without affecting the implementation of the scheme of the present application.
[0041] The embodiments and advantages of the electronic paper display panel 10 of the present application are also applicable to the electronic paper display device 1 in the present application, and the present application will not be repeated here.
[0042] On the basis of the above scheme, in an embodiment of the present application, the electronic paper display device 1 can further include a touch panel, and the touch panel is installed above the electronic paper display panel 10. By setting the touch panel, the user experience of the electronic paper display device 1 is improved.
[0043] In another embodiment of the present application, the power supply 20 is a rechargeable battery.
[0044] Compared with the prior art, the electronic paper display panel 10 and the electronic paper display device 1 have the beneficial effects that:
[0045] In summary, the electronic paper display panel 10 and the electronic paper display device 1 have unique design features. The second source electrode 10213 is directly connected to the second drain electrode 10212, and in this structure, the unified control signal of the frame area pixel 1021 can be transmitted through the gate line. In this way, only the respective gate lines need to be turned on to achieve the corresponding function, without the need to cover a large size ITO, and only the ITO of the same size as the display area pixel 1011 can meet the requirements.
[0046] Because different functions are achieved under the premise of similar structures, the same mold can be used for the frame area pixel 1021 and the display area pixel 1011 during the design stage. When subsequent modifications are needed, only the process of the layer where the thin film transistor 10116 is located needs to be changed (that is, whether to lay the thin film transistor 10116 is determined), which can distinguish the display area pixel 1011 and the frame area pixel 1021. This way does not need to modify other layers, greatly reducing the process steps involved in the modification scheme.
[0047] The above is only a preferred embodiment of the present application, and it should be pointed out that for ordinary skilled persons in the technical field, several improvements and replacements can be made without departing from the technical principles of the present application, and these improvements and replacements should also be considered as the protection scope of the present application.
Claims
1. An electronic paper display panel (10), characterized by, The electronic paper display panel (10) comprises: a display area (101) comprising a plurality of display area pixels (1011), the display area pixel (1011) comprising a first gate (10111), a first drain (10112), a first source (10113), a first common electrode (10114), a first square ITO (10115), a thin film transistor (10116) and a first via (10117) in a stack, the first source (10113) being vertically placed on the left and right sides of the display area pixel (1011), the first gate (10111) being horizontally placed on the upper and lower sides of the display area pixel (1011), the first drain (10112) and the first square ITO (10115) being conducted through the first via (10117), the thin film transistor (10116) being connected between the first source (10113) and the first drain (10112); a frame area (102) provided around the display area (101), the frame area (102) comprising a plurality of frame area pixels (1021), the frame area pixel (1021) comprising a second gate (10211), a second drain (10212), a second source (10213), a second common electrode (10214), a second square ITO (10215) and a second via (10216) in a stack; wherein the first gate (10111) and the second gate (10211) are equal in size and identical in position, the first drain (10112) and the second drain (10212) are equal in size and identical in position, the first source (10113) and the second source (10213) are equal in size and identical in position, the first common electrode (10114) and the second common electrode (10214) are equal in size and identical in position, the first square ITO (10115) and the second square ITO (10215) are equal in size and identical in position, the first via (10117) and the second via (10216) are equal in size and identical in position, the plurality of second gates (10211) are mutually conducted, the second source (10213) and the second drain (10212) are directly connected, and the second drain (10212) and the second square ITO (10215) are conducted through the second via (10216).
2. The electronic paper display panel (10) according to claim 1, characterized in that, The electronic paper display panel (10) further comprises a control chip (104), the frame area (102) further comprises a collection sheet, the collection sheet is placed at the edge of the frame area (102), the collection sheet is connected with the control chip (104), the second gates (10211) of the plurality of frame area pixels (1021) are connected in the vertical direction, and the connected second gates (10211) are all connected with the collection sheet.
3. The electronic paper display panel (10) according to claim 1, characterized in that, The electronic paper display panel (10) further comprises a substrate, four corners of the substrate are in a circular arc shape or a right angle shape.
4. The electronic paper display panel (10) according to claim 3, characterized in that The electronic paper display panel (10) further comprises a glass cover plate, the glass cover plate is arranged on an upper layer of the substrate, and the glass cover plate and the substrate are in the same shape.
5. The electronic paper display panel (10) according to claim 1, characterized in that, A plurality of the frame area pixels (1021) surround the display area pixels (1011) at least once.
6. An electronic paper display device (1), characterized by The electronic paper display device (1) comprises a power supply (20), a shell (30), a controller (40), and the electronic paper display panel (10) according to any one of claims 1-5. The power supply (20) is configured to supply power to the electronic paper display panel (10) and the controller (40), and the power supply (20), the controller (40), and the electronic paper display panel (10) are all fixed in the shell (30).
7. The electronic paper display device (1) according to claim 6, characterized by The electronic paper display device (1) further comprises a touch panel, and the touch panel is arranged above the electronic paper display panel (10).
8. The electronic paper display device (1) according to claim 6, characterized by The power supply (20) is a rechargeable battery.