Display device
By employing an electric field masking electrode to minimize black matrix shading, the aperture ratio and contrast of cholesteric liquid crystal displays are improved, addressing the limitations of existing full-color displays.
Patent Information
- Application Number
- TW114121558
- Authority / Receiving Office
- TW · TW
- Patent Type
- Patents
- Current Assignee / Owner
- Priority Date
- 2024-06-11
- Filing Date
- 2025-06-10
- Publication Date
- 2026-07-11
- Estimated Expiration
- 2045-06-09
AI Technical Summary
Existing cholesteric liquid crystal displays face limitations in opening rate due to the large overlapping area between black matrices and pixel electrodes, which is exacerbated in full-color displays, leading to a lack of high opening rate active-type array cholesteric liquid crystal devices.
The implementation of an electric field masking electrode that minimizes black matrix shading width by partially shielding data lines and electric field shielding electrodes, using light-transmitting or opaque materials, and incorporating organic layers to reduce production costs and transmittance loss.
This design enhances the aperture ratio and contrast of the display device by optimizing light transmission and reflection, reducing the influence of black matrix width, and improving the recycling of incident light.
Smart Images

Figure IMG-2_DRAW_114121558-A0101-14-0001-1 
Figure IMG-2_DRAW_114121558-A0101-14-0002-2 
Figure IMG-2_DRAW_114121558-A0101-14-0003-3
Abstract
Description
Technical field
[0001] The present disclosure relates to a display device, and in particular to a cholesteric liquid crystal display device. Prior technology
[0002] Cholesteric Liquid Crystal Display (ChLCD) technology is compatible with existing liquid crystal display (LCD) production methods and has become the mainstream of display technology in recent years due to its excellent characteristics of easy implementation of full color, high reflectivity, power saving and eye protection.
[0003] In the application of active array cholesterol liquid crystal display, the liquid crystal is mainly controlled by the electric field generated between the common electrodes of the upper substrate and the pixel electrodes of the lower panel to control the direction of liquid crystal molecules. Therefore, in order to improve the contrast it is necessary to use the Black Matrix (BM) for shading, which greatly limits the improvement of the opening rate because there is a large overlapping area between the black matrix and the pixel electrodes.
[0004] In addition, since the full-color cholesteryl LCD display is made by sequentially gluing red, green, and blue display panels with Optical Clear Adhesive (OCA), the opening rate improvement of the active array cholesteryl LCD is even more important than the traditional LCD display.
[0005] It follows that there is a lack of a high opening rate full-color active-type array cholesteryl liquid crystal display device on the market. Contents of the invention
[0006] The purpose of the present elucidation is to provide a display device that can achieve the minimization of the black matrix shading width through the setup of an electric field masking electrode, thereby improving the opening rate of the display device.
[0007] According to one embodiment of the structural pattern disclosed herein, a display device is provided, comprising a plurality of display panels. These display panels include a first display panel, a second display panel, and a third display panel. The first display panel displays a first color. The second display panel displays a second color. The third display panel displays a third color. The first, second, and third display panels are stacked sequentially, and the first, second, and third colors are different from each other. Each display panel includes a black matrix, a pixel electrode, a data line, and an electric field shielding electrode. The pixel electrode is disposed below the black matrix. The data line is disposed below the pixel electrode. The electric field shielding electrode is partially disposed below the data line. The black matrix shields a portion of the data line and a portion of the electric field shielding electrode in one direction.
[0008] Other embodiments of the foregoing implementation are as follows: Each display panel further includes a scan line. The scan line is perpendicular to the data line. The portion of the electric field shielding electrode has a long side that is parallel to the scan line.
[0009] Other embodiments of the aforementioned implementation are as follows: the electric field shielding electrode is made of a light-transmitting conductive material, and the light-transmitting conductive material is light-transmitting.
[0010] Other embodiments of the aforementioned implementation are as follows: the electric field shielding electrode is made of a metal material that is opaque.
[0011] Other embodiments of the aforementioned implementation are as follows: The electric field shielding electrode includes a horizontal electrode portion and a vertical electrode portion. The horizontal electrode portion is perpendicular to the data line and is made of a metal material that is opaque. The vertical electrode portion is perpendicular to the horizontal electrode portion and parallel to the data line. The vertical electrode portion is made of a light-transmitting conductive material that is light-transmitting.
[0012] Other embodiments of the foregoing implementation are as follows: any one of the first display panel, the second display panel and the third display panel is a cholesteric liquid crystal panel, and the first color, the second color and the third color are blue, green and red, respectively.
[0013] Other embodiments of the foregoing implementation are as follows: Each display panel further includes an organic layer. The organic layer is disposed between the pixel electrode and the data line, and is connected to the pixel electrode.
[0014] Other embodiments of the aforementioned implementation are as follows: The electric field shielding electrode includes a first shielding electrode portion and a second shielding electrode portion, and a hole is formed between the first shielding electrode portion and the second shielding electrode portion, the hole being located below the data cable.
[0015] Other embodiments of the aforementioned implementation are as follows: a black matrix, pixel electrodes, data lines, and electric field shielding electrodes are stacked along this direction to form a light-transmitting hole. The light-transmitting hole has a first light-transmitting hole diameter along a first radial direction and a second light-transmitting hole diameter along a second radial direction. The first radial direction is perpendicular to the second radial direction, and both the first and second radial directions are perpendicular to this direction. The first light-transmitting hole diameter is determined by a width of the data line, and the second light-transmitting hole diameter is determined by a width of the electric field shielding electrode or the black matrix.
[0016] According to another embodiment of the structural pattern disclosed herein, a display device is provided, comprising a plurality of display panels. These display panels are stacked sequentially and each displays a plurality of colors, which are distinct from each other. Each display panel includes a black matrix, a pixel electrode, a data line, a scan line, and an electric field shielding electrode. The pixel electrode is disposed below the black matrix. The data line is disposed below the pixel electrode. The scan line is disposed below the pixel electrode. The electric field shielding electrode is partially disposed below the data line. The black matrix shields a portion of the scan line, a portion of the data line, and a portion of the electric field shielding electrode along one direction.
[0017] Other embodiments of the aforementioned implementation are as follows: This portion of the electric field shielding electrode has a long side that is parallel to the scan line and the scan line is perpendicular to the data line.
[0018] Other embodiments of the aforementioned implementation are as follows: the electric field shielding electrode is made of a light-transmitting conductive material, and the light-transmitting conductive material is light-transmitting.
[0019] Other embodiments of the aforementioned implementation are as follows: the electric field shielding electrode is made of a metal material that is opaque.
[0020] Other embodiments of the aforementioned implementation are as follows: The electric field shielding electrode includes a lateral electrode portion and a longitudinal electrode portion. The lateral electrode portion is parallel to the scan line and is made of a metal material that is opaque. The longitudinal electrode portion is perpendicular to the lateral electrode portion and parallel to the data line. The longitudinal electrode portion is made of a light-transmitting conductive material that is light-transmitting.
[0021] Other embodiments of the foregoing implementation are as follows: any of these display panels is a cholesteric liquid crystal panel, and these colors are a blue, a green and a red, respectively.
[0022] Other embodiments of the foregoing implementation are as follows: Each display panel further includes an organic layer. The organic layer is disposed between the pixel electrode and the data line, and is connected to the pixel electrode.
[0023] Other embodiments of the aforementioned implementation are as follows: The electric field shielding electrode includes a first shielding electrode portion and a second shielding electrode portion, and a hole is formed between the first shielding electrode portion and the second shielding electrode portion, the hole being located below the data cable.
[0024] Other embodiments of the aforementioned implementation are as follows: a black matrix, pixel electrodes, data lines, and electric field shielding electrodes are stacked along this direction to form a light-transmitting hole. The light-transmitting hole has a first light-transmitting hole diameter along a first radial direction and a second light-transmitting hole diameter along a second radial direction. The first radial direction is perpendicular to the second radial direction, and both the first and second radial directions are perpendicular to this direction. The first light-transmitting hole diameter is determined by a width of the data line, and the second light-transmitting hole diameter is determined by a width of the electric field shielding electrode or the black matrix. Simple Explanation of the Diagram
[0025] Figure 1 is a schematic diagram illustrating a display device according to the first embodiment of the present disclosure; Figure 2 is a top view of the black matrix according to the first embodiment in Figure 1; Figure 3A is a top view schematic diagram of an electric field shielding electrode according to an embodiment of the first embodiment in Figure 1; Figure 3B illustrates a top view of a pixel module according to an embodiment of the first embodiment in Figure 1; Figure 3C shows a cross-sectional view along line AA in Figure 3B; The 3D diagram shows a cross-sectional view along line BB in the 3B diagram; Figure 4A illustrates a top view of an electric field shielding electrode according to another embodiment of the first embodiment in Figure 1; Figure 4B illustrates a top view of a pixel module according to another embodiment of the first embodiment in Figure 1; Figure 4C shows a cross-sectional view along line AA in Figure 4B; Figure 4D shows a cross-sectional view along line BB in Figure 4B; Figure 5A is a top view schematic diagram of an electric field shielding electrode according to another embodiment of the first embodiment in Figure 1; Figure 5B illustrates a top view of a pixel module according to another embodiment of the first embodiment in Figure 1; Figure 5C shows a cross-sectional view along line AA in Figure 5B; Figure 5D shows a cross-sectional view along line BB in Figure 5B; Figure 6 is a schematic diagram illustrating a display device according to the second embodiment of the present disclosure; Figure 7 is a schematic diagram illustrating a display device according to the third embodiment of the present disclosure; Figure 8A illustrates a schematic diagram showing the cutout-type electric field shielding electrode of this disclosure being aligned with the data line; Figure 8B illustrates a schematic diagram showing the overlap of the punch-hole type electric field shielding electrode and the data line as disclosed herein; Figure 8C illustrates a schematic diagram showing that the punch-hole type electric field shielding electrode and the data line do not overlap, as disclosed herein; Figure 8D illustrates a schematic diagram showing the overlap of the punch-hole type electric field shielding electrode and the data line on one side, as disclosed herein. Figure 9 is a tree diagram illustrating the various combinations of display panels for different types of electric field shielding electrodes disclosed herein; Figure 10A shows a top view of the first embodiment according to the first embodiment in Figure 1; Figure 10B shows a cross-sectional view along line AA in Figure 10A; Figure 10C shows a cross-sectional view along line BB in Figure 10A; Figure 11A shows a top view of the first embodiment according to the second embodiment in Figure 6; Figure 11B shows a cross-sectional view along line AA in Figure 11A; Figure 11C shows a cross-sectional view along line BB in Figure 11A; Figure 12A shows a top view of the first embodiment according to the third embodiment in Figure 7; Figure 12B shows a cross-sectional view along line AA in Figure 12A; Figure 13A shows a top view of a second embodiment according to the first embodiment in Figure 1; Figure 13B shows a cross-sectional view along line AA in Figure 13A; Figure 13C shows a cross-sectional view along line BB in Figure 13A; Figure 14A shows a top view of the second embodiment according to the second embodiment in Figure 6; Figure 14B shows a cross-sectional view along line AA in Figure 14A; Figure 14C shows a cross-sectional view along line BB in Figure 14A; Figure 15A shows a top view of the second embodiment according to the third embodiment in Figure 7; Figure 15B shows a cross-sectional view along line AA in Figure 15A; Figure 16A shows a top view of a third embodiment according to the first embodiment in Figure 1; Figure 16B shows a cross-sectional view along line AA in Figure 16A; Figure 16C shows a cross-sectional view along line BB in Figure 16A; Figure 17A is a top view of a third embodiment according to the second embodiment in Figure 6; Figure 17B shows a cross-sectional view along line AA in Figure 17A; Figure 17C shows a cross-sectional view along line BB in Figure 17A; Figure 18A illustrates a top view of the third embodiment according to the third embodiment in Figure 7; and Figure 18B shows a cross-sectional view along line AA in Figure 18A. Implementation
[0026] Several embodiments of this disclosure will now be described with reference to the accompanying drawings. For clarity, many practical details will be described in the following description. However, it should be understood that these practical details should not be used to limit the scope of this disclosure. That is, in some embodiments of this disclosure, these practical details are not essential. Furthermore, for the sake of simplicity, some conventional structures and elements will be shown in the drawings in a simple schematic manner; and repeated elements may be represented by the same number.
[0027] Furthermore, in this document, when a component (or unit or module, etc.) is "connected" to another component, it can mean that the component is directly connected to the other component, or that the component is indirectly connected to the other component, meaning that there is another component between the component and the other component. Only when it is explicitly stated that a component is "directly connected" to another component does it indicate that there is no other component between the component and the other component. The terms "first," "second," and "third" are only used to describe different components and do not limit the components themselves; therefore, "first component" can also be referred to as "second component." Moreover, the combinations of components / units / circuits in this document are not combinations generally known, conventional, or customary in this field. Whether the components / units / circuits themselves are customary cannot be used to determine whether their combination relationships are easily accomplished by someone with ordinary knowledge in the art.
[0028] Referring to Figures 1 and 2, Figure 1 is a schematic diagram illustrating a display device according to a first embodiment of the present disclosure; and Figure 2 is a top view schematic diagram illustrating a black matrix according to the first embodiment of Figure 1. The display device 100 includes a plurality of display panels, which are stacked sequentially and each displays a plurality of colors, which are distinct from each other. Specifically, the display panels include a first display panel B, a second display panel G, and a third display panel R. The first display panel B displays a first color, the second display panel G displays a second color, and the third display panel R displays a third color. The first display panel B, the second display panel G, and the third display panel R are stacked sequentially, and the first, second, and third colors are distinct from each other. In the first embodiment, any one of the first display panel B, the second display panel G, and the third display panel R is a cholesteric liquid crystal panel, and the first, second, and third colors are blue, green, and red, respectively, but the present disclosure is not limited thereto.
[0029] As shown in Figure 1, each display panel includes an upper substrate 1, a protective layer 2, an upper common electrode 3, a frame adhesive 4, multiple pixel modules (not otherwise labeled), a lower substrate 12, and a light-absorbing plate 13. Each pixel module includes a black matrix 5, a cholesteric liquid crystal 6, a pixel electrode 7, a passivation layer 8, a data line 9, a scan line 10 (not shown in the figure), and an electric field shielding electrode 11. The upper substrate 1, the protective layer 2, and the upper common electrode 3 are sequentially stacked on one side of the multiple pixel modules along a direction (i.e., the z-axis direction z in Figure 1). The lower substrate 12 is disposed on the other side of the multiple pixel modules relative to the upper substrate 1 along the z-axis direction z. The frame adhesive 4 is disposed at both ends of the multiple pixel modules along an x-axis direction x. In the first embodiment, the upper substrate 1 and the lower substrate 12 can be glass or flexible substrates such as plastic; the frame adhesive 4 can have anisotropic conductive gold balls; the passivation layer 8 can be a gate passivation layer, but the present disclosure is not limited thereto.
[0030] Pixel electrode 7 is disposed below black matrix 5, data line 9 and scan line 10 are disposed below pixel electrode 7, and scan line 10 is perpendicular to data line 9 (as shown in Figure 3A). Electric field shielding electrode 11 is partially disposed below data line 9. Black matrix 5 shields a portion of data line 9 and a portion of electric field shielding electrode 11 along the z-axis (as shown in Figures 3B, 4B and 5B), and completely shields scan line 10. The pixel module is an active array, and the switching element (unlabeled) of the active array is a thin film transistor (TFT), including but not limited to amorphous silicon (a-Si) TFT, oxide semiconductor TFT (such as IGZO) or low-temperature polycrystalline silicon TFT.
[0031] The black matrix 5 is used to prevent photo-induced leakage current from causing switching element failure after the TFT channel is illuminated. The electric field shielding electrode 11 is used to reduce the electric field strength between the data line 9 and the pixel electrode 7. Specifically, the pattern of the black matrix 5 can partially shield the data line 9 and the electric field shielding electrode 11. The electric field shielding electrode 11 can reduce the electric field strength while providing a light-transmitting area and increasing the aperture ratio. In this way, the width and degree of light leakage are reduced, and the aperture ratio and contrast are significantly improved.
[0032] It should be noted that, in the first embodiment, the electric field shielding electrode 11 can be a penetrating, reflecting, or semi-penetrating / semi-reflecting type. Based on the above embodiments, specific examples are presented below with detailed descriptions in conjunction with the accompanying drawings.
[0033] Referring to Figures 2, 3A, 3B, 3C, and 3D, Figure 3A is a top view of an electric field shielding electrode according to an embodiment of the first embodiment of Figure 1; Figure 3B is a top view of a pixel module according to an embodiment of the first embodiment of Figure 1; Figure 3C is a cross-sectional view along line AA in Figure 3B; and Figure 3D is a cross-sectional view along line BB in Figure 3B. As can be seen from Figures 3A and 3B, the electric field shielding electrode 11 in this embodiment is a through-type electrode, made of a light-transmitting conductive material, and the light-transmitting conductive material can be indium tin oxide (ITO) or indium zinc oxide (IZO).
[0034] In pixel module m1, the black matrix 5 blocks a portion of data line 9 (as shown in block S of Figure 3B) and a portion of electric field shielding electrode 11 along the z-axis (as shown in the long side L of Figure 3B, where the long side L is parallel to scan line 10). Further explanation, referring to Figures 3C and 3D, shows that the solid lines with arrows represent the path of incident light, the dashed lines with arrows represent the path of reflected light, and the arrows on the surface of data line 9 represent metallic reflected light, with the size of the arrows indicating relative intensity. As shown in Figures 3C and 3D, because the electric field shielding electrode 11 of pixel module m1 is penetrating, incident light can enter and exit not only through the edges of the black matrix 5 but also reflect off the surface of data line 9 where the black matrix 5 does not shield it. Furthermore, the electric field shielding electrode 11 under data line 9 (as shown in Figure 3C) and the electric field shielding electrode 11 parallel to scan line 10 (as shown in Figure 3D) are both transparent. In this embodiment of the first implementation, in the region where the data line 9 and the electric field shielding electrode 11 have a projected overlap, the edge distance between the data line 9 and the electric field shielding electrode 11 is ≥1.5 micrometers, but the present disclosure is not limited thereto.
[0035] Referring to Figure 3B, the black matrix 5, pixel electrode 7, data line 9, and electric field shielding electrode 11 are stacked along the z-axis to form a light-transmitting hole P. The light-transmitting hole P has a first light-transmitting aperture Pa1 along a first radial direction (i.e., the x-axis direction x), and a second light-transmitting aperture Pa2 along a second radial direction (i.e., the y-axis direction y). The first radial direction is perpendicular to the second radial direction, and both the first and second radial directions are perpendicular to the z-axis direction z. The first light-transmitting aperture Pa1 is determined by the width of the data line 9, and the second light-transmitting aperture Pa2 is determined by the width of the electric field shielding electrode 11 or the black matrix 5.
[0036] By adjusting the first aperture Pa1 and the second aperture Pa2 to increase the size of the aperture P and by recycling the incident light through reflection, a higher aperture ratio can be provided.
[0037] Referring to Figures 2, 4A, 4B, 4C, and 4D, Figure 4A is a top view of an electric field shielding electrode according to another embodiment of the first embodiment of Figure 1; Figure 4B is a top view of a pixel module according to another embodiment of the first embodiment of Figure 1; Figure 4C is a cross-sectional view along line AA in Figure 4B; and Figure 4D is a cross-sectional view along line BB in Figure 4B. As can be seen from Figures 4A and 4B, the electric field shielding electrode 11 in this embodiment is reflective and made of a metal material that is opaque.
[0038] In pixel module m2, the black matrix 5 blocks a portion of data line 9 (as shown in block S of Figure 4B) and a portion of electric field shielding electrode 11 (as shown in the long side L of Figure 4B) along the z-axis. Further explanation, referring to Figures 4C and 4D, shows that the solid lines with arrows represent the path of incident light, the dashed lines with arrows represent the path of reflected light, and the arrows on the surface of data line 9 represent metallic reflected light, with the size of the arrows indicating relative intensity. As shown in Figures 4C and 4D, because the electric field shielding electrode 11 of pixel module m2 is reflective, incident light can enter and exit through the edge of the black matrix 5. Furthermore, the portion of data line 9 without the black matrix 5 can reflect incident light, and the portion of electric field shielding electrode 11 below data line 9 can also reflect incident light (as shown in Figure 4C), thus increasing the size of the aperture (not otherwise indicated). Meanwhile, the portion of the electric field shielding electrode 11 parallel to the scan line 10, partially obscured by the black matrix 5, can also reflect incident light (as shown in Figure 4D). Therefore, compared to the design where the metal lines are completely obscured by the black matrix 5, not only is the aperture size of the pixel increased, but the recycling and reuse of incident light after reflection is also improved, thereby achieving a higher aperture ratio and contrast. In this embodiment of the first implementation, in the region where the data line 9 and the electric field shielding electrode 11 have projected overlap, the edge distance between the data line 9 and the electric field shielding electrode 11 is ≥1.5 micrometers, but this disclosure is not limited to this.
[0039] Referring to Figures 2, 5A, 5B, 5C, and 5D, Figure 5A is a top view of an electric field shielding electrode according to another embodiment of the first embodiment of Figure 1; Figure 5B is a top view of a pixel module according to another embodiment of the first embodiment of Figure 1; Figure 5C is a cross-sectional view along line AA in Figure 5B; and Figure 5D is a cross-sectional view along line BB in Figure 5B. As shown in Figures 5A and 5B, the electric field shielding electrode 11 in this embodiment is a semi-transparent, semi-reflective type, comprising a horizontal electrode portion 11a and a vertical electrode portion 11b. The horizontal electrode portion 11a is perpendicular to the data line 9 and is made of a metal material that is opaque. The longitudinal electrode portion 11b is perpendicular to the transverse electrode portion 11a and parallel to the data line 9. The longitudinal electrode portion 11b is made of a light-transmitting conductive material, and the light-transmitting conductive material can be indium tin oxide (ITO) or indium zinc oxide (IZO).
[0040] In pixel module m3, the black matrix 5 blocks a portion of data line 9 (as shown in block S of Figure 5B) and a portion of electric field shielding electrode 11 (as shown in the long side L of Figure 5B) along the z-axis. Further explanation, referring to Figures 5C and 5D, shows that the solid lines with arrows represent the path of incident light, the dashed lines with arrows represent the path of reflected light, and the arrows on the surface of data line 9 represent metallic reflected light, with the size of the arrows indicating relative intensity. As shown in Figures 5C and 5D, because the electric field shielding electrode 11 of pixel module m3 is semi-transparent and semi-reflective, incident light can enter and exit through the edge of the black matrix 5. In addition, the data line 9 without the black matrix 5 can reflect incident light, and the portion of electric field shielding electrode 11 under data line 9 can also transmit light (as shown in Figure 5C), thus increasing the size of the aperture (not otherwise indicated). Meanwhile, the portion of the electric field shielding electrode 11 parallel to the scan line 10, partially obscured by the black matrix 5, can also reflect incident light (as shown in Figure 5D). Therefore, compared to the design where the metal lines are completely obscured by the black matrix 5, not only is the aperture size of the pixel increased, but the recycling and reuse of incident light after reflection is also improved, thereby achieving a higher aperture ratio and contrast. In this embodiment of the first implementation, in the region where the data line 9 and the electric field shielding electrode 11 have projected overlap, the edge distance between the data line 9 and the electric field shielding electrode 11 is ≥1.5 micrometers, but this disclosure is not limited to this.
[0041] Referring to Figures 1 and 6, where Figure 6 is a schematic diagram illustrating the display device according to the second embodiment of the present disclosure, the display device 200 includes a plurality of display panels. Each display panel also includes the upper substrate 1, protective layer 2, upper common electrode 3, frame adhesive 4, plurality of pixel modules, lower substrate 12, and light-absorbing plate 13 of the display panel of the first embodiment in Figure 1. The difference between the display device 200 of the second embodiment and the display device 100 of the first embodiment is that the pixel modules of the display device 200 may further include an organic layer 14. Specifically, the organic layer 14 is disposed between the pixel electrode 7 and the data line 9 and is connected to the pixel electrode 7.
[0042] It should be noted that in the manufacturing of the display device 200, the use of organic layer 14 can reduce the number of photomasks on the array substrate, thereby reducing production costs and also reducing the transmittance loss when light passes through organic layer 14.
[0043] Referring to Figures 1 and 7, Figure 7 is a schematic diagram illustrating a display device according to the third embodiment of the present disclosure. The display device 300 includes a plurality of display panels, each display panel also including an upper substrate 1, a protective layer 2, an upper common electrode 3, a frame adhesive 4, a plurality of pixel modules, a lower substrate 12, and a light-absorbing plate 13 of the display panel of the second embodiment in Figure 6. The difference between the display device 300 of the third embodiment and the display device 200 of the aforementioned second embodiment is that the electric field shielding electrode 11 (not otherwise labeled) of the pixel module of the display device 300 may further include a hole h. Specifically, the electric field shielding electrode 11 includes a first shielding electrode portion 111 and a second shielding electrode portion 112, and a hole h is formed between the first shielding electrode portion 111 and the second shielding electrode portion 112, and the hole h is located below the data line 9.
[0044] Referring to Figures 7, 8A, 8B, 8C, and 8D, Figure 8A is a schematic diagram showing the punch-hole type electric field shielding electrode of this disclosure aligned with the data line; Figure 8B is a schematic diagram showing the punch-hole type electric field shielding electrode of this disclosure overlapping the data line on both sides; Figure 8C is a schematic diagram showing the punch-hole type electric field shielding electrode of this disclosure not overlapping the data line; and Figure 8D is a schematic diagram showing the punch-hole type electric field shielding electrode of this disclosure overlapping the data line on one side. When a punch-hole type electric field shielding electrode 11 (not otherwise labeled) is used, the projection of the punched-out portion of the electric field shielding electrode 11 and the data line 9 can form various relative projection relationships. As shown in Figure 8A, the two ends of the projection of the data line 9 are aligned with the first shielding electrode portion 111 and the second shielding electrode portion 112, respectively. As shown in Figure 8B, the two projected ends of the data line 9 partially overlap with the first shielding electrode portion 111 and the second shielding electrode portion 112, respectively. As shown in Figure 8C, neither of the two projected ends of the data line 9 overlaps with the first shielding electrode portion 111 or the second shielding electrode portion 112. As shown in Figure 8D, one end of the projected end of the data line 9 partially overlaps with the first shielding electrode portion 111.
[0045] It should be noted that the aperture h of the electric field shielding electrode 11 can reduce the parasitic capacitance between the data line 9 and the electric field shielding electrode 11, thereby reducing electrostatic discharge damage during the manufacturing process. Furthermore, by adjusting the relative projection relationship between the portion of the electric field shielding electrode 11 and the projection of the data line 9, the parasitic capacitance between the data line 9 and the electric field shielding electrode 11 can be adjusted to varying degrees, making it more suitable for large-size display panel applications. In addition, the area of the pixel electrode 7 projected onto the electric field shielding electrode 11 can serve as a storage capacitor.
[0046] It should be noted that the various technical features in the display device disclosed herein can be combined and configured to achieve the corresponding effects.
[0047] Referring to Figures 1, 3B, 4B, 5B, 6, 7, and 9, Figure 9 is a tree diagram illustrating various combinations of display panels with different electric field shielding electrode types disclosed herein. First, based on the technical feature that the black matrix 5 in the aforementioned display devices 100, 200, and 300 partially shields the data lines 9 and part of the electric field shielding electrodes 11, and completely shields the scan lines 10, display devices 100, 200, and 300 are all classified as display device type N, represented by the code "N," and arranged in the first code. Next, the second code represents the type of electric field shielding electrode 11 of the first display panel B, the third code represents the type of electric field shielding electrode 11 of the second display panel G, and the fourth code represents the type of electric field shielding electrode 11 of the third display panel R.
[0048] In detail, the coding rules are based on the category of the electric field shielding electrode 11. Code "1" represents that the electric field shielding electrode 11 is a penetrating type, and it is marked with the electric field shielding electrode type TR in Figure 9; code "2" represents that the electric field shielding electrode 11 is a reflecting type, and it is marked with the electric field shielding electrode type RE in Figure 9; code "3" represents that the electric field shielding electrode 11 is a semi-penetrating and semi-reflecting type, and it is marked with the electric field shielding electrode type TF in Figure 9. In this way, a tree diagram of all categories classified into N modules can be obtained through the above coding.
[0049] For example, suppose a display device 100 of type N module has an electric field shielding electrode 11 of type reflective for its first display panel B, an electric field shielding electrode 11 of type semi-transparent and semi-reflective for its second display panel G, and an electric field shielding electrode 11 of type transmissive for its third display panel R. In this case, the display device 100 can be represented as type "N.2.3.1".
[0050] Based on the above implementation methods, specific embodiments are presented below and described in detail with reference to the accompanying drawings.
[0051] Referring to Figures 1 to 9, 10A, 10B, and 10C, where Figure 10A is a top view of the first embodiment according to Figure 1; Figure 10B is a cross-sectional view along line AA in Figure 10A; and Figure 10C is a cross-sectional view along line BB in Figure 10A. As can be seen from the classification descriptions in Figures 10A, 10B, and 10C in conjunction with Figure 9, the first embodiment of the first implementation is a display device 100a comprising categories N.1.1.1, N.1.1.2, and N.1.1.3. It should be noted that in the first embodiment of the first implementation, to facilitate comparison of the light paths of the light-transmitting aperture and the incident and reflected light, pixel modules of different types of electric field shielding electrodes 11 are arranged side-by-side in a display panel of the same color; in reality, the same type of electric field shielding electrode 11 is used in all display panels of the same color.
[0052] Figure 10A shows top-down schematic diagrams of the first display panel B, the second display panel G, and the third display panel R, respectively, from top to bottom. As shown in Figure 10A, in category N.1.1.1, the first display panel B, the second display panel G, and the third display panel R are pixel modules m1, all using a transmissive electric field shielding electrode 11; in category N.1.1.2, the first display panel B and the second display panel G are pixel modules m1, and the third display panel R is a pixel module m2, with the first display panel B and the second display panel G using a transmissive electric field shielding electrode 11, while the third display panel R uses a reflective electric field shielding electrode 11; in category N.1.1.3, the first display panel B and the second display panel G are pixel modules m1, and the third display panel R is a pixel module m3, with the first display panel B and the second display panel G using a transmissive electric field shielding electrode 11, while the third display panel R uses a semi-transmissive, semi-reflective electric field shielding electrode 11.
[0053] Figure 10B shows, from top to bottom, cross-sectional views of the first display panel B, the second display panel G, and the third display panel R at the location of data line 9. As shown in Figure 10B, the electric field shielding electrodes 11 of types N.1.1.1, N.1.1.2, and N.1.1.3 are all located below data line 9, and the electric field shielding electrodes 11 of the first display panel B and the second display panel G are transparent. The electric field shielding electrodes 11 of types N.1.1.1 and N.1.1.3 of the third display panel R are transparent, while the electric field shielding electrode 11 of type N.1.1.2 of the third display panel R is an opaque metal layer.
[0054] To further explain, the solid lines with arrows represent the path of incident light, the dashed lines with arrows represent the path of reflected light, and the arrows on the surface of data line 9 represent metallic reflected light, with the size of the arrows indicating relative intensity. The light-transmitting holes (unless otherwise labeled) of categories N.1.1.1, N.1.1.2, and N.1.1.3 are only partially limited by the width of the black matrix 5. Except for the light-transmitting hole size of the third display panel R of category N.1.1.2, which is determined by the width of the electric field shielding electrode 11, all others are determined by the width of the data line 9. In the first embodiment of the first implementation, the width of the electric field shielding electrode 11 is greater than the width of the data line 9.
[0055] In categories N.1.1.1, N.1.1.2, and N.1.1.3, all metal lines not obscured by the black matrix 5 can reflect incident light, thereby improving the recycling rate of incident light. Among these three categories, the intensity of reflected light from the third display panel R is in the following order: N.1.1.2 > N.1.1.1 = N.1.1.3; the size of the light-transmitting aperture is in the following order: N.1.1.1 = N.1.1.3 > N.1.1.2.
[0056] Figure 10C shows, from top to bottom, cross-sectional views of the first display panel B, the second display panel G, and the third display panel R at scan line 10. Figure 10C shows that the electric field shielding electrodes 11 of the first display panel B and the second display panel G in types N.1.1.1, N.1.1.2, and N.1.1.3 are all light-transmitting. Only the third display panel R of type N.1.1.1 is light-transmitting, while the third display panels R of types N.1.1.2 and N.1.1.3 are opaque metal layers.
[0057] To further explain, the solid lines with arrows represent the path of incident light, the dashed lines with arrows represent the path of reflected light, and the arrows on the surface of data line 9 represent metal reflected light, with the size of the arrows indicating relative intensity. The light-transmitting holes (unless otherwise labeled) of categories N.1.1.1, N.1.1.2, and N.1.1.3 are only partially limited by the width of the black matrix 5. Except for the light-transmitting hole sizes of categories N.1.1.2 and N.1.1.3 of the third display panel R, which are determined by the width of the electric field shielding electrode 11, all others are determined by the width of the black matrix 5. Metal lines not shielded by the black matrix 5 can reflect incident light, thus improving the recycling rate of incident light; among the three categories, the intensity relationship of reflected light from the third display panel R is: N.1.1.2 = N.1.1.3 > N.1.1.1; the size relationship of the light-transmitting holes is: N.1.1.1 > N.1.1.2 = N.1.1.3.
[0058] In this way, in addition to minimizing the width of the black matrix 5, partially shielding the data line 9 and the electric field shielding electrode 11 can improve the size of the light-transmitting aperture and the recycling rate of incident light to varying degrees. When the first display panel B, the second display panel G and the third display panel R are aligned, the influence of the width of the black matrix 5 is greatly reduced, thereby further improving the aperture ratio and contrast of the display device 100a.
[0059] Referring to Figures 1 to 9, 11A, 11B, and 11C, where Figure 11A is a top view of the first embodiment according to the second embodiment in Figure 6; Figure 11B is a cross-sectional view along line AA in Figure 11A; and Figure 11C is a cross-sectional view along line BB in Figure 11A. As can be seen from the classification description in Figures 11A, 11B, and 11C in conjunction with Figure 9, the first embodiment of the second embodiment is a display device 200a including categories N.1.1.1, N.1.1.2, and N.1.1.3. The difference between the display device 200a of the first embodiment of the second embodiment and the display device 100a of the first embodiment described above is that the pixel modules m1, m2, and m3 of the display device 200a further include an organic layer 14. It should be noted that in the first embodiment of the second implementation, in order to facilitate the comparison of the light paths of the light-transmitting aperture and the incident and reflected light, pixel modules m1, m2, and m3 of different types of electric field shielding electrodes 11 are arranged side by side in the same color display panel; in fact, the same type of electric field shielding electrode 11 is used in the same color display panel.
[0060] Figure 11A shows a top view of the first display panel B, the second display panel G, and the third display panel R, from top to bottom. In the first embodiment of the second implementation, the pixel modules m1, m2, and m3 provided on the first display panel B, the second display panel G, and the third display panel R are the same as those on the first display panel B, the second display panel G, and the third display panel R in Figure 10A, and will not be described again here.
[0061] In Figure 11B, from top to bottom, the first display panel B, the second display panel G, and the third display panel R are cross-sectional views at the location of data line 9. In Figure 11C, from top to bottom, the first display panel B, the second display panel G, and the third display panel R are cross-sectional views at the location of scan line 10. In the first embodiment of the second implementation, the paths of the incident light, the paths of the reflected light, and the metallic reflected light and their relative intensities on the surface of data line 9 for the three types of incident light (N.1.1.1, N.1.1.2, and N.1.1.3) are the same as those in Figures 10B and 10C, and will not be described again here.
[0062] In this way, in addition to minimizing the width of the black matrix 5, partially shielding the data line 9 and the electric field shielding electrode 11 can improve the size of the light-transmitting aperture and the recycling rate of incident light to varying degrees. When the first display panel B, the second display panel G and the third display panel R are aligned, the influence of the width of the black matrix 5 is greatly reduced, thereby further improving the aperture ratio and contrast of the display device 200a.
[0063] In addition, the number of photomasks on the array substrate can be reduced through the organic layer 14, which reduces production costs and also reduces the transmittance loss when light passes through the organic layer 14.
[0064] Referring to Figures 1 to 9, Figure 12A, and Figure 12B, Figure 12A is a top view of the first embodiment according to the third embodiment in Figure 7; and Figure 12B is a cross-sectional view along line AA in Figure 12A. As can be seen from the classification descriptions in Figures 12A and 12B in conjunction with Figure 9, the first embodiment of the third embodiment is a display device 300a including categories N.1.1.1, N.1.1.2, and N.1.1.3. The difference between the display device 300a of the first embodiment of the third embodiment and the display device 200a of the first embodiment of the aforementioned second embodiment is that the electric field shielding electrodes 11 of the pixel modules m1, m2, and m3 of the display device 300a further include a hole h. It should be noted that in the first embodiment of the third implementation, in order to facilitate the comparison of the light paths of the light-transmitting aperture and the incident and reflected light, pixel modules m1, m2, and m3 of different electric field shielding electrodes 11 are arranged side by side in the same color display panel; in fact, the same type of electric field shielding electrode 11 is used in the same color display panel.
[0065] Figure 12A shows a top view of the first display panel B, the second display panel G, and the third display panel R, from top to bottom. In the first embodiment of the third implementation, the pixel modules m1, m2, and m3 provided on the first display panel B, the second display panel G, and the third display panel R are the same as those on the first display panel B, the second display panel G, and the third display panel R in Figure 10A, and will not be described again here.
[0066] In Figure 12B, from top to bottom, are cross-sectional views of the first display panel B, the second display panel G, and the third display panel R at the location of the data line 9. In the first embodiment of the third implementation, the paths of the incident light, the paths of the reflected light, and the metallic reflected light and their relative intensities on the surface of the data line 9 for the three types of incident light (N.1.1.1, N.1.1.2, and N.1.1.3) are the same as those in Figure 10B, and will not be described again here.
[0067] In this way, in addition to minimizing the width of the black matrix 5, partially shielding the data line 9 and the electric field shielding electrode 11 can improve the size of the light-transmitting aperture and the recycling rate of incident light to varying degrees. When the first display panel B, the second display panel G and the third display panel R are aligned, the influence of the width of the black matrix 5 is greatly reduced, thereby further improving the aperture ratio and contrast of the display device 300a.
[0068] In addition, the parasitic capacitance between the data line 9 and the electric field shielding electrode 11 can be reduced by using the hole h of the electric field shielding electrode 11, thereby reducing electrostatic damage that occurs during the manufacturing process.
[0069] Referring to Figures 1 to 9, 13A, 13B, and 13C, where Figure 13A is a top view of the second embodiment according to the first embodiment in Figure 1; Figure 13B is a cross-sectional view along line AA in Figure 13A; and Figure 13C is a cross-sectional view along line BB in Figure 13A. As can be seen from the classification descriptions in Figures 13A, 13B, and 13C in conjunction with Figure 9, the second embodiment of the first embodiment is a display device 100b including categories N.2.3.1, N.2.3.2, and N.2.3.3. It should be noted that in the second embodiment of the first embodiment, to facilitate comparison of the light paths of the light-transmitting aperture and the incident and reflected light, pixel modules of different types of electric field shielding electrodes 11 are arranged side-by-side in a display panel of the same color; in fact, the same type of electric field shielding electrode 11 is used in the display panel of the same color.
[0070] Figure 13A shows top-down schematic diagrams of the first display panel B, the second display panel G, and the third display panel R, respectively, from top to bottom. As shown in Figure 13A, for category N.2.3.1, the first display panel B is a pixel module m2, the second display panel G is a pixel module m3, and the third display panel R is a pixel module m1. The first display panel B uses a reflective electric field shielding electrode 11, the second display panel G uses a semi-transparent, semi-reflective electric field shielding electrode 11, and the third display panel R uses a transmissive electric field shielding electrode 11. For category N.2.3.2, the first display panel B and the third display panel R are pixel modules m2, and the second display panel... Panel G is a pixel module m3. The first display panel B and the third display panel R use reflective electric field shielding electrodes 11, and the second display panel G uses semi-transparent and semi-reflective electric field shielding electrodes 11. N.2.3.3 The first display panel B is a pixel module m2, the second display panel G and the third display panel R are pixel modules m3, the first display panel B uses reflective electric field shielding electrodes 11, and the second display panel G and the third display panel R use semi-transparent and semi-reflective electric field shielding electrodes 11.
[0071] Figure 13B shows, from top to bottom, cross-sectional views of the first display panel B, the second display panel G, and the third display panel R at the data line 9. As shown in Figure 13B, the electric field shielding electrodes 11 of types N.2.3.1, N.2.3.2, and N.2.3.3 are all located below the data line 9. Specifically, the electric field shielding electrodes 11 of the first display panel B are opaque metal layers, while the electric field shielding electrodes 11 of the second display panel G are transparent. The electric field shielding electrodes 11 of types N.2.3.1 and N.2.3.3 of the third display panel R are transparent, while the electric field shielding electrodes 11 of type N.2.3.2 of the third display panel R are opaque metal layers.
[0072] To further explain, the solid lines with arrows represent the path of incident light, the dashed lines with arrows represent the path of reflected light, and the arrows on the surface of data line 9 represent metallic reflected light, with the size of the arrow indicating relative intensity. The light-transmitting holes (unless otherwise labeled) of categories N.2.3.1, N.2.3.2, and N.2.3.3 are only partially limited by the width of the black matrix 5. Except for the second display panel G (categories N.2.3.1, N.2.3.2, and N.2.3.3) and the third display panel R (categories N.2.3.1 and N.2.3.3), whose light-transmitting hole sizes are determined by the width of data line 9, the sizes of all other light-transmitting holes are determined by the width of the electric field shielding electrode 11. In the second embodiment of the first implementation, the width of the electric field shielding electrode 11 is greater than the width of data line 9.
[0073] In categories N.2.3.1, N.2.3.2, and N.2.3.3, all metal lines not obscured by the black matrix 5 can reflect incident light, thereby improving the recycling rate of incident light. Among these categories, the intensity of reflected light from the third display panel R is in the following order: N.2.3.2 > N.2.3.1 = N.2.3.3; the size of the light-transmitting aperture is in the following order: N.2.3.1 = N.2.3.3 > N.2.3.2.
[0074] Figure 13C shows, from top to bottom, cross-sectional views of the first display panel B, the second display panel G, and the third display panel R at scan line 10. As can be seen from Figure 13C, except for the electric field shielding electrode 11 of the third display panel R of type N.2.3.1 which is transparent, the other electric field shielding electrodes 11 are all opaque metal layers.
[0075] To further explain, the solid lines with arrows represent the path of incident light, the dashed lines with arrows represent the path of reflected light, and the arrows on the surface of data line 9 indicate the reflected light from the metal, with the size of the arrows indicating relative intensity. The light-transmitting holes (unless otherwise labeled) of categories N.2.3.1, N.2.3.2, and N.2.3.3 are only partially limited by the width of the black matrix 5. Except for the light-transmitting hole size of the third display panel R in category N.2.3.1, which is determined by the width of the black matrix 5, all others are determined by the width of the electric field shielding electrode 11. Metal lines not shielded by the black matrix 5 can reflect incident light, thus improving the recycling rate of incident light; among the three categories, the intensity of reflected light from the third display panel R is in the following order: N.2.3.2 = N.2.3.3 > N.2.3.1; the size of the light-transmitting holes is in the following order: N.2.3.1 > N.2.3.2 = N.2.3.3.
[0076] In this way, in addition to minimizing the width of the black matrix 5, partially shielding the data line 9 and the electric field shielding electrode 11 can improve the size of the light-transmitting aperture and the recycling rate of incident light to varying degrees. When the first display panel B, the second display panel G and the third display panel R are aligned, the influence of the width of the black matrix 5 is greatly reduced, thereby further improving the aperture ratio and contrast of the display device 100b.
[0077] Referring to Figures 1 to 9, Figures 14A, 14B, and 14C, Figure 14A is a top view of the second embodiment according to the second embodiment in Figure 6; Figure 14B is a cross-sectional view along line AA in Figure 14A; and Figure 14C is a cross-sectional view along line BB in Figure 14A. As can be seen from the classification description in Figures 14A, 14B, and 14C in conjunction with Figure 9, the second embodiment of the second embodiment is a display device 200b including categories N.2.3.1, N.2.3.2, and N.2.3.3. The difference between the display device 200b of the second embodiment of the second embodiment and the display device 100b of the second embodiment of the first embodiment is that the pixel modules m1, m2, and m3 of the display device 200b further include an organic layer 14. It should be noted that in the second embodiment of the second implementation, in order to facilitate the comparison of the light paths of the light-transmitting aperture and the incident and reflected light, pixel modules m1, m2, and m3 of different types of electric field shielding electrodes 11 are arranged side by side in the same color display panel; in fact, the same type of electric field shielding electrode 11 is used in the same color display panel.
[0078] Figure 14A shows a top view of the first display panel B, the second display panel G, and the third display panel R, from top to bottom. In the second embodiment of the second implementation, the pixel modules m1, m2, and m3 provided on the first display panel B, the second display panel G, and the third display panel R are the same as those in Figure 13A, and will not be described again here.
[0079] In Figure 14B, from top to bottom, the first display panel B, the second display panel G, and the third display panel R are cross-sectional views at the data line 9. In Figure 14C, from top to bottom, the first display panel B, the second display panel G, and the third display panel R are cross-sectional views at the scan line 10. In the second embodiment of the second implementation, the paths of the incident light, the paths of the reflected light, and the metallic reflected light and their relative intensities on the surface of the data line 9 for the three types of incident light (N.2.3.1, N.2.3.2, and N.2.3.3) are the same as those in Figures 13B and 13C, and will not be described again here.
[0080] In this way, in addition to minimizing the width of the black matrix 5, partially shielding the data line 9 and the electric field shielding electrode 11 can improve the size of the light-transmitting aperture and the recycling rate of incident light to varying degrees. When the first display panel B, the second display panel G and the third display panel R are aligned, the influence of the width of the black matrix 5 is greatly reduced, thereby further improving the aperture ratio and contrast of the display device 200b.
[0081] In addition, the number of photomasks on the array substrate can be reduced through the organic layer 14, which reduces production costs and also reduces the transmittance loss when light passes through the organic layer 14.
[0082] Referring to Figures 1 to 9, Figure 15A, and Figure 15B, Figure 15A is a top view of the second embodiment according to the third embodiment in Figure 7; and Figure 15B is a cross-sectional view along line AA in Figure 15A. As can be seen from the classification descriptions in Figures 15A and 15B in conjunction with Figure 9, the second embodiment of the third embodiment is a display device 300b including categories N.2.3.1, N.2.3.2, and N.2.3.3. The difference between the display device 300b of the second embodiment of the third embodiment and the display device 200b of the second embodiment described above is that the electric field shielding electrodes 11 of the pixel modules m1, m2, and m3 of the display device 300b further include a hole h. It should be noted that in the second embodiment of the third implementation, in order to facilitate the comparison of the light paths of the light-transmitting aperture and the incident and reflected light, pixel modules m1, m2, and m3 of different electric field shielding electrodes 11 are arranged side by side in the same color display panel; in fact, the same type of electric field shielding electrode 11 is used in the same color display panel.
[0083] Figure 15A shows a top view of the first display panel B, the second display panel G, and the third display panel R, from top to bottom. In the second embodiment of the third implementation, the pixel modules m1, m2, and m3 provided on the first display panel B, the second display panel G, and the third display panel R are the same as those on the first display panel B, the second display panel G, and the third display panel R in Figure 13A, and will not be described again here.
[0084] In Figure 15B, from top to bottom, are cross-sectional views of the first display panel B, the second display panel G, and the third display panel R at the location of the data line 9. In the second embodiment of the third implementation, the paths of the incident light, the paths of the reflected light, and the metallic reflected light and their relative intensities on the surface of the data line 9 for the three types of incident light (N.2.3.1, N.2.3.2, and N.2.3.3) are the same as those in Figure 13B, and will not be described again here.
[0085] In this way, in addition to minimizing the width of the black matrix 5, partially shielding the data line 9 and the electric field shielding electrode 11 can improve the size of the light-transmitting aperture and the recycling rate of incident light to varying degrees. When the first display panel B, the second display panel G and the third display panel R are aligned, the influence of the width of the black matrix 5 is greatly reduced, thereby further improving the aperture ratio and contrast of the display device 300b.
[0086] In addition, the parasitic capacitance between the data line 9 and the electric field shielding electrode 11 can be reduced by using the hole h of the electric field shielding electrode 11, thereby reducing electrostatic damage that occurs during the manufacturing process.
[0087] Referring to Figures 1 to 9, 16A, 16B, and 16C, where Figure 16A is a top view of the third embodiment according to the first embodiment in Figure 1; Figure 16B is a cross-sectional view along line AA in Figure 16A; and Figure 16C is a cross-sectional view along line BB in Figure 16A. As can be seen from the classification descriptions in Figures 16A, 16B, and 16C in conjunction with Figure 9, the third embodiment of the first embodiment is a display device 100c including categories N.3.2.1, N.3.2.2, and N.3.2.3. It should be noted that in the third embodiment of the first embodiment, to facilitate comparison of the light paths of the light-transmitting aperture and the incident and reflected light, pixel modules of different types of electric field shielding electrodes 11 are arranged side-by-side in a display panel of the same color; in fact, the same type of electric field shielding electrode 11 is used in the display panel of the same color.
[0088] Figure 16A shows top-down schematic diagrams of the first display panel B, the second display panel G, and the third display panel R, respectively, from top to bottom. As shown in Figure 16A, for category N.3.2.1, the first display panel B is a pixel module m3, the second display panel G is a pixel module m2, and the third display panel R is a pixel module m1. The first display panel B uses a semi-transparent, semi-reflective electric field shielding electrode 11, the second display panel G uses a reflective electric field shielding electrode 11, and the third display panel R uses a transmissive electric field shielding electrode 11. For category N.3.2.2, the first display panel B is a pixel module m3, the second display panel G and the third display panel R... Panel R is a pixel module m2, the first display panel B uses a semi-transparent and semi-reflective electric field shielding electrode 11, and the second display panel G and the third display panel R use a reflective electric field shielding electrode 11; N.3.2.3 The first display panel B and the third display panel R are pixel modules m3, the second display panel G is a pixel module m2, the first display panel B and the third display panel R use a semi-transparent and semi-reflective electric field shielding electrode 11, and the second display panel G uses a reflective electric field shielding electrode 11.
[0089] Figure 16B shows, from top to bottom, cross-sectional views of the first display panel B, the second display panel G, and the third display panel R at the data line 9. As shown in Figure 16B, the electric field shielding electrodes 11 of types N.3.2.1, N.3.2.2, and N.3.2.3 are all located below the data line 9. Specifically, the electric field shielding electrodes 11 of the first display panel B are all light-transmitting, while the electric field shielding electrodes 11 of the second display panel G are all opaque metal layers. For types N.3.2.1 and N.3.2.3, only the electric field shielding electrode 11 of the third display panel R is light-transmitting.
[0090] To further explain, the solid line with arrows represents the path of incident light, the dashed line with arrows represents the path of reflected light, and the arrows on the surface of data line 9 represent metallic reflected light, with the size of the arrow indicating relative intensity. Categories N.3.2.1, N.3.2.2, and N.3.2.3 (unless otherwise labeled) are only partially limited by the width of the black matrix 5. Except for the first display panel B of categories N.3.2.1, N.3.2.2, and N.3.2.3, and the third display panel R of categories N.3.2.1 and N.3.2.3, whose aperture size is determined by the width of data line 9, the aperture sizes of all other displays are determined by the width of the electric field shielding electrode 11.
[0091] In categories N.3.2.1, N.3.2.2, and N.3.2.3, all metal lines not obscured by the black matrix 5 can reflect incident light, thereby improving the recycling rate of incident light. Among these categories, the intensity of reflected light from the third display panel R is in the following order: N.3.2.2 > N.3.2.1 = N.3.2.3; the size of the light-transmitting aperture is in the following order: N.3.2.1 = N.3.2.3 > N.3.2.2.
[0092] Figure 16C shows, from top to bottom, cross-sectional views of the first display panel B, the second display panel G, and the third display panel R at scan line 10. As can be seen from Figure 16C, except for the electric field shielding electrode 11 of the third display panel R of type N.3.2.1 which is transparent, the other electric field shielding electrodes 11 are all opaque metal layers.
[0093] To further explain, the solid lines with arrows represent the path of incident light, the dashed lines with arrows represent the path of reflected light, and the arrows on the surface of data line 9 indicate the reflected light from the metal, with the size of the arrows indicating relative intensity. The light-transmitting holes (unless otherwise labeled) of categories N.3.2.1, N.3.2.2, and N.3.2.3 are only partially limited by the width of the black matrix 5. Except for the light-transmitting hole size of category N.3.2.1, which is determined by the width of the black matrix 5, the others are all determined by the width of the electric field shielding electrode 11. Metal lines not shielded by the black matrix 5 can reflect incident light, thereby improving the recycling rate of incident light; among the three categories, the intensity relationship of reflected light from the third display panel R is: N.3.2.2 = N.3.2.3 > N.3.2.1; the size relationship of the light-transmitting holes is: N.3.2.1 > N.3.2.2 = N.3.2.3.
[0094] In this way, in addition to minimizing the width of the black matrix 5, partially shielding the data line 9 and the electric field shielding electrode 11 can improve the size of the light-transmitting aperture and the recycling rate of incident light to varying degrees. When the first display panel B, the second display panel G and the third display panel R are aligned, the influence of the width of the black matrix 5 is greatly reduced, thereby further improving the aperture ratio and contrast of the display device 100c.
[0095] Referring to Figures 1 to 9, 17A, 17B, and 17C, where Figure 17A is a top view of the third embodiment according to the second embodiment in Figure 6; Figure 17B is a cross-sectional view along line AA in Figure 17A; and Figure 17C is a cross-sectional view along line BB in Figure 17A. As can be seen from the classification description in Figures 17A, 17B, and 17C in conjunction with Figure 9, the third embodiment of the second embodiment is a display device 200c including categories N.3.2.1, N.3.2.2, and N.3.2.3. The difference between the display device 200c of the third embodiment of the second embodiment and the display device 100c of the third embodiment of the first embodiment is that the pixel modules m1, m2, and m3 of the display device 200c further include an organic layer 14. It should be noted that in the third embodiment of the second implementation, in order to facilitate the comparison of the light paths of the light-transmitting aperture and the incident and reflected light, pixel modules m1, m2, and m3 of different electric field shielding electrodes 11 are arranged side by side in the same color display panel; in fact, the same type of electric field shielding electrode 11 is used in the same color display panel.
[0096] Figure 17A shows a top view of the first display panel B, the second display panel G, and the third display panel R, from top to bottom. In the third embodiment of the second implementation, the pixel modules m1, m2, and m3 provided on the first display panel B, the second display panel G, and the third display panel R are the same as those on the first display panel B, the second display panel G, and the third display panel R in Figure 16A, and will not be described again here.
[0097] In Figure 17B, from top to bottom, the first display panel B, the second display panel G, and the third display panel R are cross-sectional views at the data line 9. In Figure 17C, from top to bottom, the first display panel B, the second display panel G, and the third display panel R are cross-sectional views at the scan line 10. In the third embodiment of the second implementation, the paths of the incident light, the paths of the reflected light, and the metallic reflected light and their relative intensities on the surface of the data line 9 for the three types of incident light (N.2.3.1, N.2.3.2, and N.2.3.3) are the same as those in Figures 16B and 16C, and will not be described again here.
[0098] In this way, in addition to minimizing the width of the black matrix 5, partially shielding the data line 9 and the electric field shielding electrode 11 can improve the size of the light-transmitting aperture and the recycling rate of incident light to varying degrees. When the first display panel B, the second display panel G and the third display panel R are aligned, the influence of the width of the black matrix 5 is greatly reduced, thereby further improving the aperture ratio and contrast of the display device 200c.
[0099] In addition, the number of photomasks on the array substrate can be reduced through the organic layer 14, which reduces production costs and also reduces the transmittance loss when light passes through the organic layer 14.
[0100] Referring to Figures 1 to 9, Figure 18A, and Figure 18B, Figure 18A is a top view of the third embodiment according to the third embodiment in Figure 7; and Figure 18B is a cross-sectional view along line AA in Figure 18A. As can be seen from the classification descriptions in Figures 18A and 18B in conjunction with Figure 9, the third embodiment of the third embodiment is a display device 300c including categories N.2.3.1, N.2.3.2, and N.2.3.3.
[0101] The difference between the display device 300c of the third embodiment of the third embodiment and the display device 200c of the third embodiment of the second embodiment is that the electric field shielding electrodes 11 of the pixel modules m1, m2, and m3 of the display device 300c further include a hole h. It should be noted that in the third embodiment of the third embodiment, in order to facilitate the comparison of the light path of the light-transmitting hole and the incident and reflected light, pixel modules m1, m2, and m3 of different types of electric field shielding electrodes 11 are arranged side by side in the same color display panel; in fact, the same type of electric field shielding electrode 11 is used in the same color display panel.
[0102] Figure 18A shows a top view of the first display panel B, the second display panel G, and the third display panel R, from top to bottom. In the second embodiment of the third implementation, the pixel modules m1, m2, and m3 provided on the first display panel B, the second display panel G, and the third display panel R are the same as those in Figure 16A, and will not be described again here.
[0103] In Figure 18B, from top to bottom, are cross-sectional views of the first display panel B, the second display panel G, and the third display panel R at the location of the data line 9. In the third embodiment of the third implementation, the paths of the incident light, the paths of the reflected light, and the metallic reflected light and their relative intensities on the surface of the data line 9 for the three types of incident light (N.2.3.1, N.2.3.2, and N.2.3.3) are the same as those in Figure 16B, and will not be described again here.
[0104] In this way, in addition to minimizing the width of the black matrix 5, partially shielding the data line 9 and the electric field shielding electrode 11 can improve the size of the light-transmitting aperture and the recycling rate of incident light to varying degrees. When the first display panel B, the second display panel G and the third display panel R are aligned, the influence of the width of the black matrix 5 is greatly reduced, thereby further improving the aperture ratio and contrast of the display device 300c.
[0105] In addition, the parasitic capacitance between the data line 9 and the electric field shielding electrode 11 can be reduced by using the hole h of the electric field shielding electrode 11, thereby reducing electrostatic damage that occurs during the manufacturing process.
[0106] As can be seen from the above embodiments, the present disclosure has the following advantages: by adjusting the first and second light-transmitting apertures to increase the size of the light-transmitting aperture and improving the recycling rate of incident light reflection, a higher aperture ratio and contrast ratio can be provided for the display device. Furthermore, by combining the first, second, and third display panels with different optical reflection and transmission characteristics in various ways, during the display panel bonding process, not only can the aperture ratio loss caused by a large black matrix light-blocking width or insufficient bonding precision be significantly reduced, but also various full-color active cholesteric liquid crystal display devices with varying degrees of improvement in aperture ratio and contrast ratio can be obtained.
[0107] Although the present disclosure has been presented above with reference to embodiments, it is not intended to limit the scope of the present disclosure. Anyone skilled in the art may make some modifications and refinements without departing from the spirit and scope of the present disclosure. Therefore, the scope of protection of the present disclosure shall be determined by the appended claims.
[0108] 100, 100a, 100b, 100c, 200, 200a, 200b, 200c, 300, 300a, 300b, 300c: Display devices 1: Upper substrate 2: Protective layer 3: Upper plate common electrode 4: Frame adhesive 5: Black Matrix 6: Cholesterol Liquid Crystal 7: Pixel Electrode 8: Passivation layer 9: Data cable 10: Scan lines 11: Electric field shielding electrode 11a: Lateral electrode section 11b: Longitudinal electrode section 111: First shielding electrode section 112: Second shielding electrode section 12:Lower base plate 13: Light-absorbing panel 14: Organic layer B: First display panel G: Second display panel h: hole L: Long side m1, m2, m3: Pixel modules N: Display device type N.1.1.1,N.1.1.2,N.1.1.3,N.2.3.1,N.2.3.2,N.2.3.3,N.3.2.1,N.3.2.2,N.3.2.3: Category P: Light aperture Pa1: First light-transmitting aperture Pa2: Second light aperture R: Third display panel S: Block TR, RE, TF: Electric field shielding electrode type x: x-axis direction y: y-axis direction z: z-axis direction
Claims
1. A display device comprising: a plurality of display panels, including: a first display panel displaying a first color; a second display panel displaying a second color; and a third display panel displaying a third color; wherein, The first display panel, the second display panel, and the third display panel are stacked sequentially. The first color, the second color, and the third color are different from each other. Each display panel includes: a black matrix; A pixel electrode is disposed below the black matrix; a data line is disposed below the pixel electrode; a scan line is perpendicular to the data line; and an electric field shielding electrode is partially disposed below the data line; wherein the black matrix shields a portion of the data line and a portion of the electric field shielding electrode in one direction, and the portion of the electric field shielding electrode has a long side that is parallel to the scan line.
2. The display device as described in claim 1, wherein the pattern of the black matrix is a non-continuous pattern.
3. The display device as claimed in claim 1, wherein the electric field shielding electrode is made of a light-transmitting conductive material, and the light-transmitting conductive material is light-transmitting.
4. The display device as claimed in claim 1, wherein the electric field shielding electrode is made of a metal material that is opaque.
5. The display device as claimed in claim 1, wherein the electric field shielding electrode comprises: a lateral electrode portion perpendicular to the data line, the lateral electrode portion being made of a metal material that is opaque; and a longitudinal electrode portion perpendicular to the lateral electrode portion and parallel to the data line, the longitudinal electrode portion being made of a light-transmitting conductive material that is light-transmitting.
6. The display device as claimed in claim 1, wherein any one of the first display panel, the second display panel and the third display panel is a cholesteric liquid crystal panel, and the first color, the second color and the third color are blue, green and red, respectively.
7. The display device as claimed in claim 1, wherein each display panel further comprises: an organic layer disposed between the pixel electrode and the data line, and connected to the pixel electrode.
8. The display device as claimed in claim 1, wherein the electric field shielding electrode includes a first shielding electrode portion and a second shielding electrode portion, and a hole is formed between the first shielding electrode portion and the second shielding electrode portion, the hole being located below the data cable.
9. The display device as claimed in claim 1, wherein the black matrix, the pixel electrode, the data line, and the electric field shielding electrode are stacked along the direction to form a light-transmitting hole, the light-transmitting hole has a first light-transmitting hole diameter along a first radial direction, the light-transmitting hole has a second light-transmitting hole diameter along a second radial direction, the first radial direction is perpendicular to the second radial direction, both the first radial direction and the second radial direction are perpendicular to the direction, the first light-transmitting hole diameter is determined by a width of the data line, and the second light-transmitting hole diameter is determined by a width of the electric field shielding electrode or the black matrix.
10. A display device comprising: a plurality of display panels, stacked sequentially, each displaying a plurality of colors, the colors being distinct from each other; wherein, Each display panel includes: a black matrix; a pixel electrode disposed below the black matrix; a data line disposed below the pixel electrode; a scan line disposed below the pixel electrode, the scan line being perpendicular to the data line; and an electric field shielding electrode partially disposed below the data line; wherein the black matrix shields the scan line, a portion of the data line, and a portion of the electric field shielding electrode in one direction, the portion of the electric field shielding electrode having a long side parallel to the scan line.
11. The display device as claimed in claim 10, wherein the pattern of the black matrix is a non-continuous pattern.
12. The display device as claimed in claim 10, wherein the electric field shielding electrode is made of a light-transmitting conductive material, and the light-transmitting conductive material is light-transmitting.
13. The display device as claimed in claim 10, wherein the electric field shielding electrode is made of a metallic material that is opaque.
14. The display device as claimed in claim 10, wherein the electric field shielding electrode comprises: a lateral electrode portion parallel to the scan line, the lateral electrode portion being made of a metallic material that is opaque; and a longitudinal electrode portion perpendicular to the lateral electrode portion and parallel to the data line, the longitudinal electrode portion being made of a light-transmitting conductive material that is light-transmitting.
15. The display device as claimed in claim 10, wherein any of the display panels is a cholesteric liquid crystal panel, and the colors are a blue, a green and a red, respectively.
16. The display device as claimed in claim 10, wherein each display panel further comprises: an organic layer disposed between the pixel electrode and the data line, and connected to the pixel electrode.
17. The display device as claimed in claim 10, wherein the electric field shielding electrode includes a first shielding electrode portion and a second shielding electrode portion, and a hole is formed between the first shielding electrode portion and the second shielding electrode portion, the hole being located below the data cable.
18. The display device as claimed in claim 10, wherein the black matrix, the pixel electrode, the data line, and the electric field shielding electrode are stacked along the direction to form a light-transmitting hole, the light-transmitting hole having a first light-transmitting hole diameter along a first radial direction, the light-transmitting hole having a second light-transmitting hole diameter along a second radial direction, the first radial direction being perpendicular to the second radial direction, both the first radial direction and the second radial direction being perpendicular to the direction, the first light-transmitting hole diameter being determined by a width of the data line, and the second light-transmitting hole diameter being determined by a width of the electric field shielding electrode or the black matrix.