Transparent display device
By setting transparent areas and display areas in the pixel units of the transparent display device, and using reflective materials and display media, the problem of low ornamental quality of transparent displays and difficult to read text under strong light or complex backgrounds is solved, and the effect of clear reading from both the front and the back is achieved.
Patent Information
- Application Number
- CN202411926186.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Priority Date
- 2020-11-18
- Filing Date
- 2021-10-12
- Publication Date
- 2025-03-28
AI Technical Summary
When transparent displays are used in strong light or complex backgrounds, the ornamental quality is affected, and the text is difficult to read clearly from the front and back perspectives.
A transparent display device is designed, and its pixel unit includes a transparent area and a display area. By setting a reflective material and a display medium, text that can be clearly read from both the front and the back is realized, and background interference is reduced.
Improves the ornamental quality of transparent displays at different perspectives, reduces background interference, and ensures that the text can be read clearly on both the front and back.
Smart Images
Figure CN119717343A_ABST
Abstract
Description
[0001] This application is a divisional application of the invention patent application with application date of October 12, 2021, application number 202111188777.1, and invention name “Transparent display device”. Technical Field
[0002] The present invention relates to a transparent display device, in particular to a transparent display device that provides readable information for front and back viewing angles. Background Art
[0003] Generally speaking, liquid crystal displays can be roughly divided into transmissive liquid crystal displays, reflective liquid crystal displays, and semi-transmissive and semi-reflective liquid crystal displays. As the application fields of displays become increasingly extensive, transparent displays have gradually been developed. Transparent displays refer to displays that have a certain degree of transparency and can clearly display the background behind the panel. Transparent displays are suitable for a variety of applications such as building windows, car windows, and store windows. In addition to the original transparent display function, they also have the potential to be developed as information displays in the future, and therefore have attracted much attention from the market.
[0004] Although the transparent characteristics of transparent displays can be used to develop many applications that cannot be achieved by original non-transparent displays, their transparent characteristics also have their disadvantages. For example, when using a transparent display, its background may affect the user's viewing quality. When the ambient background light is too strong, or the background color and lines are too complex, it may affect the user's interpretation of the displayed image, greatly reducing the viewing quality of the transparent display. Furthermore, transparent displays can display images from both front and back viewing angles. However, when reading text from the front of the transparent display device, the text is reversed and is not easy to read from the back viewing angle. Summary of the invention
[0005] The present invention provides a transparent display device, comprising a plurality of pixel units, wherein one of the plurality of pixel units has a transparent area and a display area. The pixel unit comprises a first substrate, a second substrate, a display medium, a first reflective material, and a second reflective material. The display medium is disposed between the first substrate and the second substrate, the first reflective material is disposed in the display area and between the first substrate and the display medium, and the second reflective material is disposed in the display area and between the second substrate and the display medium.
[0006] The present invention provides another transparent display device, comprising a plurality of pixel units, wherein one of the plurality of pixel units has a transparent area and a display area, and comprises a first transparent display panel and a second transparent display panel. The first transparent display panel and the second transparent display panel overlap. The first transparent display panel comprises a first reflective material, the second transparent display panel comprises a second reflective material arranged corresponding to the first reflective material, and the first reflective material and the second reflective material are arranged in the display area. BRIEF DESCRIPTION OF THE DRAWINGS
[0007] Figure 1A-Figure 1C is a schematic diagram of a transparent display device in an embodiment.
[0008] Figure 2A-2C yes Figure 1A Schematic diagram of some variation embodiments of the transparent display device.
[0009] Figure 3A-3C yes Figure 1A-Figure 1C A schematic diagram of a variation of an embodiment in which a transparent display device includes a color filter.
[0010] Figure 4A-4B yes Figure 1A-Figure 1C Schematic diagram of a variation of an embodiment of a transparent display device.
[0011] Figure 5 yes Figure 1B Schematic diagram of a variation of an embodiment of a transparent display device.
[0012] Figure 6A-6C is a schematic diagram of a transparent display device in another embodiment.
[0013] Figure 7A-7C yes Figure 6A-6C A schematic diagram of a variation of an embodiment in which a transparent display device includes a color filter.
[0014] Figure 8A-8C yes Figure 7A-7C Schematic diagram of a variation of an embodiment of a transparent display device.
[0015] Figure 9A-9B yes Figure 7A-7C Schematic diagram of a variation of an embodiment of a transparent display device.
[0016] Figure 10A-10B yes Figure 6A-6C Schematic diagram of a variation of an embodiment of a transparent display device.
[0017] Fig.11 is a schematic diagram of the overlap of two display panels.
[0018] Fig.12 is a schematic diagram of reflective materials and wires.
[0019] Explanation of reference numerals: 100, 200, 300 - transparent display device; 200A, 200B - transparent display panel; PX1, PX2 - pixel unit; R1, R2, R21, R22, R22_1, R22_2, R3, R4 - panel area; R11, R12 - transparent area; 101, 102, 101a, 101b, 102a, 102b - substrate; 110, 111, 112, 113, 114, 110a, 110b, 111a, 111b -electrode; LC, LC1, LC2-display medium; 108, 109, 108_1, 108_2, 109_1, 109_2, 308-reflective material; 105, 106, 205, 206-arrows; 115_1~115_3, 115a_1~115a_3, 115b_1~115b_3-color filters; SB-sub-pixel; GL, GL1, GL2-gate line; DL, DL1, DL2-data line; x1, x2, y1-pixel spacing. DETAILED DESCRIPTION
[0020] The structure, number of components, number of layers, position distribution, proportion, etc. of the icons are only examples to help explain and understand the embodiments, and are not used to limit the form and scope of the embodiments. If the first, second, etc. are mentioned in this article, they are only used to separate different components, and do not limit the order or importance of the process.
[0021] Certain words are used throughout the specification and claims of the present invention to refer to specific components. It should be understood by those skilled in the art that electronic equipment manufacturers may refer to the same components by different names. It is not intended to distinguish between components that have the same function but different names. In the following specification and claims, the words "having" and "including" are open-ended words and should therefore be interpreted as "including but not limited to...".
[0022] It should be understood that when an element or film layer is defined as being disposed "on" or "connected to" another element or film layer, it may be directly on or directly connected to the other element or layer, or there may be other intervening elements or film layers (indirect contact) between the two. Conversely, when an element is defined as being "directly" "on" or "directly connected to" another element or film layer, there may be no intervening elements or film layers between the two.
[0023] The terms "about," "equal," "equal," or "substantially the same" typically mean within 20% of a given value or range, or within 10%, 5%, 3%, 2%, 1% or 0.5% of a given value or range.
[0024] In addition, the term "in the range from a first value to a second value" means that the range includes the first value, the second value, and other values therebetween. Although terms such as first, second, third, etc. can be used to describe different constituent elements, these constituent elements are not limited by these terms. These terms are only used to distinguish constituent elements from other constituent elements in the specification. Claims may not use the same terms, but may use terms such as first, second, third, etc. to indicate the order in which elements are defined. Therefore, in the following description, the first constituent element may be the second constituent element in the claim.
[0025] In the present invention, the transparent display device generally includes a permanent transparent area or a transparent area under switching. In one embodiment, the permanent transparent area can be a transparent material. However, some materials may have a non-transparent state, but can be switched to a transparent state under control by applying a bias voltage. In other words, the present invention can form a transparent area according to actual design.
[0026] In addition, the appearance of the transparent display device can be rectangular, circular, polygonal, curved or other suitable shapes. The transparent display device can also include a drive system, a control system, a light source system, a shelf system, etc., as well as a peripheral system supporting the transparent display device.
[0027] It should be noted that the following embodiments may replace, reorganize, or mix the technical features in several different embodiments to complete other embodiments without departing from the spirit of the present invention or causing any conflicts.
[0028] Please refer to Figures 1A to 1C . Figure 1A 1 is a front view of a transparent display device 100 having a pixel unit in the first embodiment. In order to clearly describe the structure, Figures 1A to 1C In other embodiments, the transparent display device 100 may include a plurality of pixel units, but the present invention is not limited thereto. Figure 1B yes Figure 1A Cross-sectional view along line 1B-1B'. Figure 1C is a rear view of the transparent display device 100 . Figure 1A yes Figure 1B Schematic diagram from left to right. Figure 1C Viewed from right to left Figure 1B Schematic diagram of Figures 1A to 1C As shown, the pixel unit PX1 has a transparent area R1 and a display area R2. The display area R2 may include a first area R21 and a second area R22. Figure 1AAs shown, the first region R21 is disposed between the transparent region R1 and the second region R22. In the present invention, for example, the display region R2 can be used to display an image. In the transparent region, a screen or object on one side of the transparent display device 100 can be seen from the other side, but the present invention is not limited thereto.
[0029] In other embodiments, for example, the pixel unit PX1 can be roughly defined as being surrounded by two scan lines and two data lines. In some embodiments, two adjacent scan lines are two scan lines with the same function, and there is no other scan line with the same function as the two scan lines between the two scan lines with the same function. The data line is two data lines with the same function, and there is no other data line with the same function as the two data lines between the two data lines, but the present invention is not limited thereto.
[0030] In the present embodiment, the pixel unit may be an area surrounded by the lower edge of a scan line, the lower edge of an adjacent scan line, the left edge of a data line, and the left edge of an adjacent data line. In other embodiments, a pixel unit may also be an area surrounded by a center line extending in the X-axis direction of a scan line, a center line extending in the X-axis direction of an adjacent scan line L, a center line extending in the scan line L, a center line extending in the Y-axis direction of a data line, and a center line of an adjacent data line extending along the Y-axis. In other embodiments, the pixel unit may also be surrounded by the upper edge of a scan line, the upper edge of an adjacent scan line, the right edge of a data line, and the right edge of an adjacent data line. However, the present invention is not limited thereto. The pixel unit may include a partial vertical stack (or element) structure, such as at least a portion of the substrate 101, a portion of the substrate 102, and / or a portion of the display medium.
[0031] exist Figures 1A to 1C In the embodiment, the transparent region R1 may be transparent, and the first region R21 and the second region R22 are both active regions. Figure 1B The pixel unit PX1 includes a substrate 101, a substrate 102, and a display medium LC arranged between the substrate 101 and the substrate 102. The materials of the substrate 101 and the substrate 102 can be a flexible substrate, a rigid substrate or a combination thereof. For example, the materials of the substrate 101 and the substrate 102 can include plastic, glass, quartz, sapphire, polycarbonate, polyimide, polyethylene terephthalate, other suitable transparent substrate materials, or a combination of these materials, but not limited thereto. In the present invention, other elements (such as transistors and / or wires, etc.) can be arranged on the substrate 101, but not limited thereto. The above-mentioned substrate 101 and / or the second substrate 102 can be the same substrate as the substrates in other pixel units.
[0032] like Figure 1BAs shown in the 1B-1B' cross-sectional view, the electrode 111 and the electrode 112 are arranged on the substrate 101, respectively, in the first region R21 and the second region R22. In addition, the electrode 111 and the electrode 112 are arranged between the substrate 101 and the display medium LC. The electrode 111 and the electrode 112 can be pixel electrodes. In the display region R2, the reflective material 109 is arranged on the electrode 111 and between the substrate 101 and the display medium LC. The reflective material 109 and the electrode 111 at least partially overlap in the direction of the surface of the substrate 101 (for example, the Z-axis direction). The electrode 111 and the electrode 112 in the first region R21 and the second region R22 can be controlled separately. The material of the electrode 111 and the electrode 112 may include a transparent conductive material, such as indium tin oxide, indium zinc oxide, indium oxide, zinc oxide, tin oxide, organic conductive material, other suitable materials or a combination of the above, but the present invention is not limited thereto.
[0033] exist Figures 1A to 1C The X-axis direction, Y-axis direction, and Z-axis direction are marked in the figure. The Z-axis direction is perpendicular to the upper surface or lower surface of the substrate 101 or the substrate 102, and the X-axis direction and the Y-axis direction may be parallel to the upper surface or lower surface of the substrate 101 or the substrate 102. The Z-axis direction may be perpendicular to the X-axis direction and the Y-axis direction, and the X-axis direction may be perpendicular to the Y-axis direction. In the figure, the spatial relationship in the structure can be described according to the X-axis direction, the Y-axis direction, and the Z-axis direction.
[0034] Please refer to Figure 1B , the electrode 110 is disposed on the substrate 102 and is disposed in the first region R21 and the second region R22. In the second region R22 of the display region R2, the reflective material 108 is disposed on the electrode 110 and is disposed between the substrate 102 and the display medium LC. In addition, the reflective material 108 is disposed in the second region R22 and may not overlap with the reflective material 109 in the Z direction. The content of the front view in the first region R21 is indicated by arrow 105, and the content of the rear view is indicated by arrow 106. The reflective material 108 and the reflective material 109 can be materials with higher reflectivity, including gold, gold alloy, aluminum and / or aluminum alloy, etc., but are not limited thereto. In this embodiment, Figure 1A and Figure 1C Only the positions of the reflective material 108 and the reflective material 109 are shown, and other components are omitted.
[0035] FIG. 2A to FIG. 2C is a schematic diagram of a modified embodiment of the first embodiment. FIG. 2A to FIG. 2C 1 and 2 are front and rear views of the first embodiment of the transparent display device. FIG. 2A to FIG. 2C The positions of the reflective material 108 and the reflective material 109 in one pixel unit PX1 are shown.
[0036] exist Figure 2A and Figure 2B In the embodiment, the transparent region R1 can be divided into two or more separate sub-regions, for example, a transparent region R11 and a transparent region R12. The transparent region R12 separates the first region R21 and the second region R22. In other words, the transparent region R12 is disposed between the first region R21 and the second region R22. In some embodiments, at least the first region R21 and / or the second region R22 can be divided into two or more regions, or an extension of the transparent region R1 separates the first region R21 and / or the second region R22. In detail, as Figure 2C As shown, the reflective material 108_1 and the reflective material 108_2 can be disposed on the substrate 102 and disposed in the second sub-region R22_1 and the second sub-region R22_2 respectively. The reflective material 109_1 and the reflective material 109_2 are disposed on the substrate 101 and disposed in the first sub-region R21_1 and the first sub-region R21_2 respectively, but not limited thereto.
[0037] FIG. 3A to FIG. 3C 115_1 to 115_3 are schematic diagrams of a variation of an embodiment including color filters 115_1 to 115_3. Figure 3A FIG. 1 is a front view of a pixel unit PX1 of the transparent display device 100. In this embodiment, the pixel unit PX1 may include three sub-pixels SB (one sub-pixel SB is shown as a dotted line). The structure of one sub-pixel SB may be the same as Figure 1A The pixel cells PX1 shown are identical. Figure 3B yes Figure 3A Cross-sectional view along line 3B-3B'. Figure 3C is a rear view of the pixel unit PX1 of the transparent display device 100 . Figure 3C yes Figure 3B Schematic diagram viewed from left to right.
[0038] FIG. 3A to FIG. 3C Embodiments may include color filters 115_1 to 115_3, such as RGB color filters. The color filters are disposed on the substrate 102 and are disposed in the first region R21 and the second region R22. In addition, the color filters may be disposed between the substrate 102 and the electrode 110 (or the display medium LC). In detail, in the present embodiment, the reflective material 108 is disposed on the substrate 102, the electrode 110 is disposed on the reflective material 108, and the color filters 115_1 to 115_3 are disposed between the reflective material 108 and the display medium LC, but the embodiment is not limited to this structure. In this way, due to the arrangement of the reflective material 108, the reflective material 109 and the color filter, the transparent display device can correctly display the image color, the visible content of the front viewing angle and the rear viewing angle. In some embodiments, the color filters 115_1 to 115_3 may include other colors and / or the color filters 115_1 to 115_3 may have the same color, but are not limited thereto.
[0039] In some embodiments, the electrode 110 may be divided into three parts, each belonging to each sub-pixel SB. In another embodiment, the electrode 110 may be an electrode overlapping the first region R21 and the second region R22 of one or more sub-pixels SB, and may extend to other regions of the transparent display device 100, but is not limited thereto.
[0040] Figure 4A and Figure 4B for Figure 1B According to the design, the electrode 110 and / or the electrode 111 may extend from the first region R21 and / or the second region R22 to the transparent region R1. Figure 4A The display electrode 111 extends to the transparent region R1. Figure 4B The display electrode 110 extends to the transparent region R1, but is not limited thereto. In addition, the electrode 111 may be disposed in the first region R21 and the transparent region R1.
[0041] like Figure 5 Show Figure 1B A variation of the first embodiment. Figure 5 : is a cross-sectional view of the transparent display device 100. The pixel unit PX1 of the transparent display device 100 also includes an electrode 113 and an electrode 114, which can be arranged in the transparent region R1. The electrode 113 and the electrode 114 can be arranged on the substrate 101 and the substrate 102, respectively. The electrode material in the embodiment can be the same as or similar to the material of the aforementioned electrode, which is not repeated here. In this embodiment, the electrode 113 is arranged on the substrate 102 and arranged in the transparent region R1. The electrode 114 is arranged on the substrate 101 and arranged in the transparent region R1. In addition, the electrode 113 is arranged between the substrate 102 and the display medium LC, and the electrode 114 is arranged between the substrate 101 and the display medium LC.
[0042] In some embodiments, if the transparent region R1 is generally in a transparent state, 0V or the same voltage may be applied to both the electrode 113 and the electrode 114, or any other voltage may be applied to both the electrode 113 and the electrode 114 to change the transparent region R1 to a diffuse state. If the transparent region R1 is generally in a diffuse state, 0V or the same voltage may be applied to the electrode 113 and the electrode 114 to maintain the transparent region R1 in a diffuse state. Any other voltage may also be applied to both the electrode 113 and the electrode 114 to change the transparent region R1 to a transparent state.
[0043] FIG. 6A to FIG. 6C is a schematic diagram of another embodiment of a transparent display device 200 . Fig. 6A is a front view of an embodiment of a transparent display device 200 . Figure 6B yes Fig. 6ACross-sectional view along line 6B-6B'.
[0044] Figure 6C is a rear view of the transparent display device 200 . Fig. 6A yes Figure 6B Schematic diagram viewed from left to right.
[0045] Figure 6C yes Figure 6B Schematic diagram viewed from right to left. In the embodiment, the viewing direction is indicated by arrows 205 and 206.
[0046] Please refer to Figure 6B In this embodiment, the transparent display device 200 may include a first transparent display panel 200A and a second transparent display panel 200B overlapping the first transparent display panel 200A. The transparent display device 200 includes a pixel unit PX2, and the pixel unit PX2 includes a transparent area R3 and a display area R4. The pixel unit PX2 may include a transparent area R3 and a display area R4. FIG. 6A to FIG. 6C The transparent display device 200 may include a plurality of pixel units PX2. In other words, the pixel unit PX2 may include a portion of the first transparent display panel 200A and a portion of the second transparent display panel 200B, but is not limited thereto.
[0047] The first transparent display panel 200A includes a first substrate 102a, a second substrate 101a and a first reflective material 108. The second transparent display panel 200B includes a third substrate 101b, a fourth substrate 102b and a second reflective material 109, the second reflective material 109 can be arranged corresponding to the first reflective material 108, and the first reflective material 108 and the second reflective material 109 are arranged in the display area R4. The second substrate 101a is adjacent to the third substrate 101b, and the second substrate 101a and the third substrate 101b are arranged between the first reflective material 108 and the second reflective material 109. The first reflective material 108 and the second reflective material 109 may include gold, gold alloy, aluminum and / or aluminum alloy, but are not limited thereto.
[0048] The first transparent display panel 200A may include a first display medium LC1 disposed between the first substrate 102a and the second substrate 101a. The first reflective material 108 is disposed between the first display medium LC1 and the second substrate 101a. The second transparent display panel 200B may include a second display medium LC2 disposed between the third substrate 101b and the fourth substrate 102b. The second reflective material 109 is disposed between the second display medium LC2 and the third substrate 101b.
[0049] like Figure 6BAs shown in the cross-sectional view of FIG6B-6B', electrode 110a is disposed on substrate 102a, electrode 111a is disposed on substrate 101a, electrode 111b is disposed on substrate 101b, and electrode 110b is disposed on substrate 102b. The electrode materials in the figure are the same or similar to the aforementioned electrode materials and are not described in detail.
[0050] 7A to 7C yes FIG. 6A to FIG. 6C The transparent display device 200 further includes color filters 115a_1 to 115a_3 and color filters 115b_1 to 115b_3 (similar to the color filters 115_1 to 115_3 in the first embodiment), which are disposed in the display region R4 of the first transparent display panel 200A and the second transparent display panel 200B.
[0051] Fig. 7A is a front view of the transparent display device 200 . Figure 7B yes Fig. 7A Section along line 7B-7B'. Figure 7C is a rear view of the transparent display device 200 . Fig. 7A yes Figure 7B Schematic diagram viewed from left to right. Figure 7C yes Figure 7B Schematic diagram viewed from right to left. The schematic diagram may include a transparent area R3 and a display area R4.
[0052] In the first transparent display panel 200A, the color filter 115a_3 may be disposed between the substrate 102a and the electrode 110a of the substrate 102a. The first reflective material 108 may be disposed on the electrode 111a of the substrate 101a. The color filter 115b_3 may be disposed between the substrate 102b and the electrode 110b of the substrate 102b of the second transparent display panel 200B. The second reflective material 109 may be disposed on the electrode 111b of the substrate 101b.
[0053] FIG. 8A to FIG. 8C for 7A to 7C The transparent display device 200 of this embodiment is 7A to 7C 1 and 11. The transparent display device shown in FIG. 1 is similar to the transparent display device shown in FIG. 1. The difference is that the reflective material 108 is disposed between the substrate 101a and the electrode 111a. In addition, at least one of the color filters 115a_1 to 115a_3 is disposed on the reflective material 108 and disposed between the reflective material 108 and the electrode 111a. The reflective material 109 is disposed between the substrate 101b and the electrode 111b. In addition, at least one of the color filters 115b_1 to 115b_3 is disposed on the reflective material 109 and disposed between the reflective material 109 and the electrode 111b.
[0054] FIG. 9A to FIG. 9B yes Figure 7B Schematic diagram of another variation of the embodiment in the embodiment. Please refer to Fig. 9A The transparent display device 200 of this embodiment and Figure 7B The transparent display device shown is similar to the one shown in FIG. 1 , except that the reflective material 109 is disposed between the substrate 101 b and the electrode 111 b . In addition, at least one of the color filters 115 b_1 to 115 b_3 is disposed on the substrate 101 b and between the reflective material 109 and the electrode 111 b .
[0055] Please refer to Fig. 9B The transparent display device 200 of this embodiment and Figure 7B The transparent display device shown in FIG. 1 is similar to the transparent display device shown in FIG. The difference is that at least one of the color filters 115a_1 to 115a_3 is disposed on the reflective material 108 and between the reflective material 108 and the electrode 111a. However, the present invention is not limited thereto, and the positions of the color filters and the reflective material can be disposed at appropriate positions according to actual design.
[0056] Fig. 10A and Fig. 10B for Figure 6B Schematic diagram of another variation of the embodiment. Please refer to Fig. 10A The transparent display device 200 of this embodiment and Figure 6B The difference is that in this embodiment, the electrode 111a and / or the electrode 111b can extend from the display region R4 to the transparent region R3 according to the design, but is not limited thereto.
[0057] Please refer to Fig. 10B The transparent display device 200 of this embodiment and Figure 6B The transparent display device shown is similar to the one shown in the figure. The difference is that in this embodiment, the electrode 110a and / or the electrode 110b can extend from the display region R4 to the transparent region R3 according to the design, but is not limited thereto.
[0058] Fig.11 yes Figure 7B Front view of two overlapping display panels. Fig.11 As shown in the left side figure, the front view of the first transparent display panel 200A may include a plurality of first conductive lines, such as the gate line GL1 and the data line DL1. Fig.11 The center figure is a rear view of the second transparent display panel 200B. The second transparent display panel 200B includes a plurality of second conductive lines, such as gate lines GL2 and data lines DL2. Fig.11 The right side figure shows a schematic diagram of the overlap of the first transparent display panel 200A and the second transparent display panel 200B. Fig.11The transparent display panel 200 in the embodiment includes a plurality of sub-pixel units SB. When the panels are overlapped and bonded, the display area R4 (including the electrode 110a, the electrode 111a, the color filter 115a_1 to 115a_3 and the reflective material 108) in the first transparent display panel 200A is not parallel to the display area R4 in the second transparent display panel 200B. In addition, when the panels are overlapped and bonded, at least one first wire in the first transparent display panel 200A, such as the data line DL1 or the gate line GL1, is not parallel to at least one second wire in the second transparent display panel 200B. In some embodiments, the angle formed by at least one first wire of the first transparent display panel 200A and at least one second wire of the second transparent display panel 200B may be greater than 4 degrees. In another embodiment, the space or gap between two adjacent reflective materials may be less than 10μm. Therefore, better display quality can be achieved. Fig.11 This is only a schematic diagram to help understand the present invention, and the embodiments are not limited thereto.
[0059] Fig.12 Schematic diagram of the reflective material and wires of the transparent display device 300. Fig.12 As shown, the plurality of gate lines GL may be parallel to each other and form a certain angle with the display. The reflective material 308 may be disposed on at least a portion of the gate line GL to prevent exposure. In other words, at least a portion of the first conductive line overlaps at least a portion of the reflective material 308. Fig.12 In FIG. 3 , the portion of the gate line GL located behind the reflective material 308 is shown by a dotted line.
[0060] In some embodiments, the reflective material 308 is arranged in a direction, which can be regarded as the extension direction of the diagonal line of the virtual rectangle, the first side of the virtual rectangle extends in the X-axis direction, and the second side extends in the Y-axis direction. In some embodiments, the slope of the reflective material 308 is less than the pixel spacing y1, the pixel spacing x1, or less than the pixel spacing y1, and the sub-pixel spacing x2 (the sub-pixel spacing x2 is less than the pixel spacing y1). The pixel spacing x1 in this embodiment can be defined as the minimum spacing on the same side of the data lines DL of two adjacent sub-pixels of the same color in the above-mentioned X-axis direction. The sub-pixel spacing x2 in this embodiment can be defined as the minimum distance between the same sides of two adjacent data lines DL in the above-mentioned X-axis direction. The pixel spacing y1 in this embodiment can be defined as the distance between the same sides of two adjacent gate lines GL in the Y-axis direction. Therefore, this design can achieve better display quality.
[0061] The above embodiments solve the problem in the prior art that the text is reversed or illegible when viewed from the back of a transparent display device, and can reduce or eliminate Moiré patterns in a double-panel transparent display device to achieve better display quality.
[0062] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.
Claims
1. A transparent display device, characterized in that: The invention comprises a plurality of pixel units, wherein a pixel unit among the plurality of pixel units has a transparent area and a display area, and comprises: a first transparent display panel; and a second transparent display panel, wherein the first transparent display panel and the second transparent display panel overlap; The first transparent display panel includes a first reflective material, the second transparent display panel includes a second reflective material arranged corresponding to the first reflective material, and the first reflective material and the second reflective material are arranged in the display area.
2. The transparent display device according to claim 1, characterized in that: The first reflective material and the second reflective material include gold, gold alloy, aluminum and / or aluminum alloy.
3. The transparent display device according to claim 1, wherein: The first transparent display panel further includes a first substrate and a second substrate, and the second transparent display panel includes a third substrate and a fourth substrate, wherein the second substrate and the third substrate are adjacent to each other, and the second substrate and the third substrate are disposed between the first reflective material and the second reflective material.
4. The transparent display device according to claim 3, characterized in that: The first transparent display panel further includes a first display medium disposed between the first substrate and the second substrate, and the first reflective material is disposed between the first display medium and the second substrate.
5. The transparent display device according to claim 4, characterized in that: The second transparent display panel further includes a second display medium disposed between the third substrate and the fourth substrate, and the second reflective material is disposed between the second display medium and the third substrate.
6. The transparent display device according to claim 3, characterized in that: The first transparent display panel further includes a plurality of first conductive lines, and the second transparent display panel further includes a plurality of second conductive lines.
7. The transparent display device according to claim 6, wherein: At least a portion of the plurality of first conductive lines overlaps with at least a portion of the first reflective material.
8. The transparent display device according to claim 6, wherein: In a top view direction, at least one wire among the plurality of first wires is not parallel to at least one wire among the plurality of second wires.
9. The transparent display device according to claim 8, characterized in that: At least one of the plurality of first conductive lines and at least one of the plurality of second conductive lines have an included angle, and the included angle is greater than 4 degrees.
10. The transparent display device according to claim 3, wherein: The first transparent display panel further includes an electrode disposed on the third substrate, and the electrode extends from the display area to the transparent area.
11. The transparent display device according to claim 1, wherein: Also included are a first color filter and a second color filter disposed in the display area.