CN111833721A - Cover plate, panel assembly and electronic equipment - Google Patents
Cover plate, panel assembly and electronic equipment Download PDFInfo
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- CN111833721A CN111833721A CN202010684125.6A CN202010684125A CN111833721A CN 111833721 A CN111833721 A CN 111833721A CN 202010684125 A CN202010684125 A CN 202010684125A CN 111833721 A CN111833721 A CN 111833721A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
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- G—PHYSICS
- G06—COMPUTING; CALCULATING OR COUNTING
- G06F—ELECTRIC DIGITAL DATA PROCESSING
- G06F3/00—Input arrangements for transferring data to be processed into a form capable of being handled by the computer; Output arrangements for transferring data from processing unit to output unit, e.g. interface arrangements
- G06F3/01—Input arrangements or combined input and output arrangements for interaction between user and computer
- G06F3/03—Arrangements for converting the position or the displacement of a member into a coded form
- G06F3/041—Digitisers, e.g. for touch screens or touch pads, characterised by the transducing means
- G06F3/0412—Digitisers structurally integrated in a display
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/0418—Constructional details
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
- G09F13/00—Illuminated signs; Luminous advertising
- G09F13/04—Signs, boards or panels, illuminated from behind the insignia
- G09F13/08—Signs, boards or panels, illuminated from behind the insignia using both translucent and non-translucent layers
Abstract
The invention relates to a cover plate, which is applied to a display panel or a touch display panel and comprises a transparent substrate, and a first black ink layer, a semi-transparent black ink layer, a white ink layer and a transparent atomized ink layer which are sequentially arranged on the lower surface of the transparent substrate; the first black ink layer comprises a base area and a pattern area, and the first black ink layer is partially hollowed out in the pattern area to form a pattern; the semi-transparent black ink layer covers the pattern area of the first black ink layer and fills the hollow area of the pattern area, and the semi-transparent black ink layer is used for shielding the bottom structure and transmitting light; the white ink layer covers the semi-transparent black ink layer, the transparent atomization ink layer covers the white ink layer, and the white ink layer and the transparent atomization ink layer are used for enabling light emitted by the backlight source to become uniform white light. According to the cover plate, the panel assembly and the electronic equipment, when the backlight source is turned on, the pattern light source displayed on the cover plate is uniform white light, and when the light source is turned off, the cover plate has a good integrated display effect.
Description
Technical Field
The present invention relates to the field of electronic devices, and in particular, to a cover plate, a panel assembly and an electronic device.
Background
With the continuous improvement of living standard of people, electronic products such as mobile phones, tablet computers, cameras, notebook computers, vehicle-mounted touch panels and the like have become popular gradually. In recent years, not only the performance of electronic products, but also the comfort and appearance of electronic products are increasingly demanded by consumers. For example, as the applications of the vehicle-mounted touch panel are developed more and more, the functions of the vehicle-mounted touch panel are no longer only with the function of displaying images, and most of the vehicle-mounted touch panel integrate multiple functions such as navigation, entertainment, video, communication and the like, and the operation buttons of the functions are changed from the former 'mechanical keys' into 'touch operation keys'. Most touch key patterns or logo patterns on the cover plate on the market are directly produced through silk-screen printing ink, and once the patterns made by the process are formed, the patterns can be always visible to users, namely, the patterns are visible no matter whether the backlight of an electronic product is turned on, and the integration effect of the cover plate is poor.
Disclosure of Invention
Accordingly, there is a need for a cover plate, a panel assembly and an electronic device to solve the above-mentioned problems.
The cover plate is applied to a display panel or a touch display panel, and comprises a transparent substrate, and a first black ink layer, a semi-transparent black ink layer, a white ink layer and a transparent atomization ink layer which are sequentially arranged on the lower surface of the transparent substrate; the first black ink layer comprises a base area and a pattern area, and the first black ink layer is locally hollowed out in the pattern area to form a pattern; the semi-transparent black ink layer covers the pattern area of the first black ink layer and fills the hollow area of the pattern area, and the semi-transparent black ink layer is used for shielding a bottom structure and transmitting light; the white ink layer covers the semi-transparent black ink layer, the transparent atomizing ink layer covers the white ink layer, and the white ink layer and the transparent atomizing ink layer are used for enabling light emitted by the backlight source to become uniform white light.
In one embodiment, the cover plate further comprises a second black ink layer, the second black ink layer is arranged between the base area of the first black ink layer and the semi-permeable black ink layer, the second black ink layer is also partially hollowed out in the pattern area to form the pattern, the transverse dimension of the hollowed area of the second black ink layer is larger than that of the hollowed area of the first black ink layer, so that a step part is formed between the second ink layer and the first ink layer and close to the hollowed area, and the minimum transverse dimension of the step part is larger than 0.5 mm.
In one embodiment, a minimum distance between an outer edge of the black ink semi-permeable layer and an outer edge of the first black ink layer or the second black ink layer hollowed-out area is greater than 0.5 mm.
In one embodiment, the minimum distance between the white ink layer and the outer edge of the first black ink layer or the second black ink layer hollowed-out area is greater than 1mm, and the thickness of the white ink layer ranges from 5 μm to 10 μm.
In one embodiment, the minimum distance between the transparent fogging ink layer and the outer edge of the first black ink layer or second black ink layer hollowed-out area is greater than 1.5 mm.
In one embodiment, the first black ink layer, the semi-transparent black ink layer, the white ink layer and the transparent atomized ink layer each comprise a resin, a curing agent, an assistant and a solvent, the resin is a main ink structure, the curing agent is used for ensuring the crosslinking degree and the printing performance of the resin, and the assistant and the solvent are used for ensuring the printing performance of the ink; the first black ink layer, the semi-transparent black ink layer and the white ink layer respectively comprise pigments, the pigments are used for adjusting the color of the ink, the pigment of the first black ink layer is black, the pigment of the semi-transparent black ink layer is gray, and the pigment of the white ink layer is white; the transparent atomization ink layer further comprises atomization particles, and the atomization particles are uniformly distributed in the resin and used for scattering light emitted by the backlight source, so that the light distribution is uniform.
In one embodiment, the first black ink layer, the semi-permeable black ink layer and the white ink layer comprise the following components in parts by mass: 80-90 parts of resin; 8-12 parts of curing agent; 1-5 parts of pigment; 1-5 parts of an auxiliary agent; 10-20 parts of a solvent; the transparent atomized ink layer comprises the following components in parts by weight: 80-90 parts of resin; 8-12 parts of curing agent; 1-5 parts of assistant, 10-20 parts of solvent and 5-15 parts of atomized particles.
The invention also provides a panel component which is a display panel and also comprises a backlight source and any cover plate, wherein the backlight source is positioned on one side of the transparent atomized ink layer, which is deviated from the transparent substrate; the cover plate comprises a display area and a frame area, the frame area surrounds the display area, and the first black ink layer, the semi-transparent black ink layer, the white ink layer and the transparent atomization ink layer are all located in the frame area.
In one embodiment, the panel assembly is a touch display panel, and further comprises a touch unit, wherein the touch unit at least covers the first black ink layer pattern area; the touch unit is positioned between the cover plate and the backlight source; or the touch unit is positioned between the transparent substrate and the first black ink layer.
The invention also provides an electronic device comprising the panel assembly.
The cover plate, the panel assembly and the electronic equipment have the beneficial effects that:
according to the cover plate, the panel assembly and the electronic equipment, the position relation among the transparent substrate, the first black ink layer, the semi-transparent black ink layer, the white ink layer and the transparent atomization ink layer is reasonably arranged, so that when the backlight source is turned on, light emitted by the backlight source firstly passes through the transparent atomization ink layer, the transparent atomization ink layer scatters and atomizes the light, the light is uniformly distributed, the uniform light passes through the white ink layer, the white ink layer enables the light to be uniform white light, finally, the uniform white light passes through the semi-transparent black ink layer and the transparent substrate and penetrates out of the upper surface of the cover plate, and a pattern light source presented on the cover plate is uniform white light; when the light source is turned off, the semi-transparent black ink layer can shield the bottom structure and has the same color with the base area of the first black ink layer, and when seen from the front side of the cover plate, the patterns in the pattern area are not visible for a user, so that a better integrated display effect is achieved.
Drawings
Fig. 1 is a schematic longitudinal cross-sectional view of a cover plate according to an embodiment of the present invention.
Fig. 2 is a schematic bottom view of the cover plate with the first black ink layer thereon according to an embodiment of the present invention.
Fig. 3 is a schematic bottom view of the cover plate with a semi-transparent black ink layer applied thereon according to an embodiment of the present invention.
Fig. 4 is a schematic bottom view of the bottom surface of the cover plate after the white ink layer is applied thereon according to an embodiment of the present invention.
Fig. 5 is a schematic bottom view of the bottom surface of the cover plate after the transparent atomized ink layer is coated thereon according to an embodiment of the present invention.
Fig. 6 is a schematic longitudinal sectional view of a cover plate according to another embodiment of the present invention.
Fig. 7 is a schematic longitudinal cross-sectional view of a display panel according to an embodiment of the invention.
Fig. 8 is a schematic front top view of a display panel according to an embodiment of the present invention.
Fig. 9 is a schematic longitudinal cross-sectional view of a touch display panel according to an embodiment of the invention.
Fig. 10 is a schematic longitudinal cross-sectional view of a touch display panel according to another embodiment of the invention.
Reference numerals:
the transparent substrate comprises a cover plate 10, a transparent substrate 100, a first black ink layer 200, a second black ink layer 300, a base region 210, a pattern region 220, a hollow region 230 and a step part 240; the touch screen comprises a semi-transparent black ink layer 400, a white ink layer 500, a transparent atomized ink layer 600, a display panel 20, a light source 21, a display area 22, a frame area 23, a touch display panel 30 and a touch unit 700.
Detailed Description
In order to make the aforementioned objects, features and advantages of the present invention comprehensible, embodiments accompanied with figures are described in detail below. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.
In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the invention and to simplify the description, and are not intended to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and are not to be considered limiting of the invention.
Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein are for illustrative purposes only and do not denote a unique embodiment. In addition, it should be noted that, in the sectional views in the drawings herein, the section lines are provided for more clearly illustrating the specific structure of the embodiments of the present invention, and in one sectional view, the same section lines schematically represent the same component or represent different components made of the same material, and the shapes of the section lines, including the inclination angle and the spacing distance, do not strictly follow the section line setting of different materials in the mechanical drawing. For example, in the drawings herein, the hatching inclined at 45 ° does not necessarily represent a metal material, but may represent other non-metal materials.
With the continuous improvement of living standard of people, electronic products such as mobile phones, tablet computers, vehicle-mounted touch panels and the like have become popular gradually. In recent years, not only the performance of electronic products, but also the comfort and appearance of electronic products are increasingly demanded by consumers. For example, as the applications of the vehicle-mounted touch panel are developed more and more, the functions of the vehicle-mounted touch panel are no longer only with the function of displaying images, and most of the vehicle-mounted touch panel integrate multiple functions such as navigation, entertainment, video, communication and the like, and the operation buttons of the functions are changed from the former 'mechanical keys' into 'touch operation keys'. Most touch key patterns or logo patterns on the cover plate on the market are directly produced through silk-screen printing ink, and once the patterns made by the process are formed, the patterns can be always visible to users, namely, the patterns are visible no matter whether the backlight of an electronic product is turned on, and the integration effect of the cover plate is poor.
In order to solve the above problems, the present invention provides a cover plate, a panel assembly and an electronic device, wherein the electronic device includes the panel assembly, the panel assembly may be a display panel or a touch display panel, the panel assembly includes the cover plate and a backlight, and the backlight may be a direct-type backlight or an edge-type backlight. In one embodiment, as shown in fig. 1 to 5, fig. 1 is a schematic longitudinal sectional view of the cover plate, fig. 2 to 5 are schematic bottom view of the lower surface of the cover plate, and it should be noted that in fig. 3 to 5, the black color of the first black ink layer 200 is hidden to more conveniently show the distance relationship and the marking components and regions.
As shown in fig. 1, the cover plate 10 includes a transparent substrate 100, and a first black ink layer 200, a semi-permeable black ink layer 400, a white ink layer 500 and a transparent misting ink layer 600 sequentially disposed on a lower surface of the transparent substrate 100; as shown in fig. 2, the structure of the first black ink layer 200 coated on the lower surface of the transparent substrate 100 is that the first black ink layer 200 includes a base region 210 and a pattern region 220, and the first black ink layer 200 is partially hollowed out in the pattern region 220 to form a pattern. In a specific embodiment, the pattern may be a key pattern or a pattern such as a trademark or a character. As shown in fig. 1, the structure of the semi-transparent black ink layer 400 covering the pattern area 220 of the first black ink layer 200 and filling the hollow area 230 of the pattern area 220 is shown in fig. 3, after the semi-transparent black ink layer 400 is coated on the pattern area 220 of the first black ink layer 200, in fig. 3, a diagonal area is drawn to represent the semi-transparent black ink layer 400, and the semi-transparent black ink layer 400 is used for shielding a bottom structure and transmitting light.
In addition, as shown in fig. 1, the white ink layer 500 covers the semi-transparent black ink layer 400, the transparent atomization ink layer 600 covers the white ink layer 500, and the white ink layer 500 and the transparent atomization ink layer 600 are used for making the light emitted by the backlight source become uniform white light. The structure of the white ink layer 500 covering the semi-permeable black ink layer 400 is shown in fig. 4, and in fig. 4, the white ink layer 500 is indicated by the hatched area. The structure of the white ink layer 500 covered with the transparent ink mist layer 600 is shown in fig. 5, and in fig. 5, the transparent ink mist layer 600 is indicated by hatched areas.
In another embodiment, a schematic longitudinal cross-sectional view of the cover plate 10 is shown in fig. 6, the cover plate 10 further includes a second black ink layer 300, the second black ink layer 300 is disposed between the base region 210 of the first black ink layer 200 and the semi-permeable black ink layer 400, the second black ink layer 300 is also partially hollowed out in the pattern region 220 to form a pattern, and a transverse dimension of the hollowed-out region 230 of the second black ink layer 300 is greater than a transverse dimension of the hollowed-out region 230 of the first black ink layer 200 to form a step portion 240 between the second black ink layer 300 and the first black ink layer 200 and near the hollowed-out region 230, a minimum transverse dimension of the step portion 240 is D1, and D1 is greater than 0.5 mm. Through setting up two-layer black ink layer at transparent substrate 100's lower surface, two-layer black ink layer all is used for the shading to can avoid light leak defects such as the produced pinhole of individual layer black ink layer. In addition, through reasonably setting the transverse dimensions of the first black ink layer 200 and the second black ink layer 300 in the hollow area 230, a step part 240 is formed between the second black ink layer 300 and the first black ink layer 200 and at a position close to the hollow area 230, and the minimum transverse dimension of the step part 240 is designed to be larger than 0.5mm, so that ink accumulation at the outer edge of the hollow area 230 of the first black ink layer 200 and the second black ink layer 300 in the process of printing and coating the first black ink layer 200 and the second black ink layer 300 can be avoided, and further the printing smoothness of the pattern area 220 can be ensured.
In addition, as shown in fig. 1, 3, and 6, the minimum distance between the outer edge of the black ink semi-permeable ink layer 400 and the outer edge of the hollowed-out area 230 of the first black ink layer 200 or the second black ink layer 300 is D2, and D2 > 0.5 mm. So configured, it may be ensured that the semi-permeable black ink layer 400 completely covers the hollowed-out area 230 of the first black ink layer 200 or the second black ink layer 300.
In addition, as shown in fig. 1, 4 and 6, the minimum distance between the white ink layer 500 and the outer edge of the hollowed area 230 of the first or second black ink layer 200 or 300 is D3, and D3 > 1 mm. As shown in fig. 1, 5 and 6, the minimum distance between the transparent atomization ink layer 600 and the outer edge of the hollow-out region 230 of the first black ink layer 200 or the second black ink layer 300 is D4, and D4 is greater than 1.5 mm. Through the numerical value of reasonable setting distance D3 and distance D4 to can avoid printing error, ensure that white ink layer 500 can cover half black ink layer 400 completely, transparent atomizing ink layer 600 can cover white ink layer 500 completely.
In one embodiment, the first black ink layer 200, the semi-permeable black ink layer 400, the white ink layer 500, and the transparent atomization ink layer 600 each include a resin, a curing agent, an auxiliary agent, and a solvent. The resin is of an ink main body structure, can be selected from polyester modified epoxy resin, and has both polyester resin characteristics and epoxy resin characteristics. The curing agent is used for ensuring the crosslinking degree and the printing performance of the resin, and specifically, the curing agent can select special modified amino, isomeric structural bodies and closed end free groups, so that the normal-temperature pre-reaction time is prolonged, the higher crosslinking density is ensured, and the excellent printability is maintained. The auxiliary agent and the solvent are used for ensuring the printing performance of the ink. Specifically, the auxiliary agent is used for improving the printing effect of the printing ink, and the non-silicon auxiliary agent is used for multiple purposes, so that negative effects brought by the organic silicon auxiliary agent are avoided. The solvent serves to dilute the ink, making it easier to print.
In addition, the first black ink layer 200, the second black ink layer 300, the semi-transparent black ink layer 400 and the white ink layer 500 all further comprise pigments, the pigments have temperature resistance and weather resistance, the pigments are used for adjusting the color of the ink, the pigments of the first black ink layer 200 and the second black ink layer 300 are black, the pigments of the semi-transparent black ink layer 400 are gray, and the pigments of the white ink layer 500 are white, so that the first black ink layer 200 and the second black ink layer 300 cannot transmit light, the bottom structure can be well shielded, and the semi-transparent black ink layer 400 has shielding and light transmitting functions. In addition, the transparent atomized ink layer 600 further includes atomized particles, the size of the atomized particles is nano-scale or micro-scale, and the atomized particles are uniformly distributed in the resin and used for scattering and atomizing the light emitted by the backlight source, so that the light distribution is uniform.
In a specific embodiment, the first black ink layer 200, the second black ink layer 300, the semi-permeable black ink layer 400, and the white ink layer 500 comprise the following components in parts by mass: 80-90 parts of resin; 8-12 parts of curing agent; 1-5 parts of pigment; 1-5 parts of an auxiliary agent; 10-20 parts of solvent. The transparent atomized ink layer 600 does not contain pigments and contains atomized particles, and the transparent atomized ink layer 600 comprises the following components in parts by mass: 80-90 parts of resin; 8-12 parts of curing agent; 1-5 parts of an auxiliary agent; 10-20 parts of a solvent; 5-15 parts of atomized particles.
In the present invention, the material of the transparent substrate 100 is not limited, and any transparent material having a certain hardness may be used to manufacture the transparent substrate 100. In an embodiment, the transparent substrate 100 may be a glass substrate, a sapphire substrate, or a plastic substrate, such as a plastic substrate, for example, a PMMA substrate, a PC substrate, or a PET substrate.
In one embodiment, the panel assembly is a display panel 20, the longitudinal cross-sectional structure of the display panel is shown in fig. 7, and the front-side top-view structure of the display panel 20 is shown in fig. 8. Note that, in fig. 8, in order to identify parts and/or regions more clearly, the black color of the first black ink layer 200 is hidden. As shown in fig. 7, the display panel 20 includes a backlight 21 and the cover plate 10, where the backlight 21 is located on a side of the transparent misted ink layer 600 facing away from the transparent substrate 100. As shown in fig. 8, the cover plate 10 includes a display area 22 and a frame area 23, the frame area 23 surrounds the display area 22, and the first black ink layer 200, the semi-permeable black ink layer 400, the white ink layer 500 and the transparent atomization ink layer 600 are all located in the frame area 23. As shown in fig. 7, the backlight source 21 is a direct-type light source 21, when the backlight source 21 is turned on, light emitted from the backlight source 21 firstly passes through the transparent atomized ink layer 600, the transparent atomized ink layer 600 scatters and atomizes the light, so that the light is uniformly distributed, the homogenized light passes through the white ink layer 500, the white ink layer 500 makes the light become uniform white light, finally, the uniform white light passes through the semi-transparent black ink layer 400 and the transparent substrate 100 to penetrate out of the upper surface of the cover plate 10, and the pattern light source appearing on the cover plate 10 is uniform white light. In addition, in a specific embodiment, the thickness of the white ink layer 500 is in a range from 5 μm to 10 μm, so that the white ink layer 500 is prevented from affecting the transmission effect of the light emitted from the backlight 21.
When the light source 21 is turned off, the semi-transparent black ink layer 400 can shield the bottom structure, and has the same color as the base areas 210 of the first black ink layer 200 and the second black ink layer 300, and the color is uniform and the visual effect is good when viewed from the front of the cover plate 10. In a specific embodiment, the transmittance of the semi-transparent black ink layer 400 to light with a wavelength of 550nm is less than 5%, and since 550nm is the average wavelength of sunlight, human eyes are most sensitive to the wavelength, so that when the backlight 21 is turned off, the semi-transparent black ink layer 400 can achieve a good shielding effect.
In another embodiment, the panel assembly is a touch display panel 30, as shown in fig. 9, the pattern of the pattern area 220 is a key pattern, the touch display panel 30 further includes a touch unit 700, the touch unit 700 is located between the cover plate 10 and the backlight 21, specifically, the touch unit 700 is located between a side of the transparent misted ink layer 600 facing away from the transparent substrate 100 and the backlight 21, and the touch unit 700 at least covers the pattern area 220 of the first black ink layer 200, so that when a user touches the pattern of the pattern area 220, the touch unit 700 can sense a touch action.
It should be noted that the position of the touch unit 700 is not limited in the present invention, as long as the touch unit 700 at least covers the pattern area 220 of the first black ink layer 200. In another embodiment, as shown in fig. 10, the touch unit 700 is located on the lower surface of the transparent substrate 100, and the touch unit 700 at least covers the pattern area 220 of the first black ink layer 200. The touch unit 700 is made of a transparent material in order not to affect the penetration of the backlight.
In another embodiment, the present invention further provides an electronic device, which includes the display panel 20 or the touch display panel 30, and specifically, the electronic device may be a mobile phone, a tablet computer, a vehicle-mounted touch panel, and the like.
According to the cover plate, the panel assembly and the electronic device, the position relation among the transparent substrate 100, the first black ink layer 200, the semi-transparent black ink layer 400, the white ink layer 500 and the transparent atomized ink layer 600 is reasonably arranged, so that when the backlight source 21 is turned on, light emitted by the backlight source 21 firstly passes through the transparent atomized ink layer 600, the transparent atomized ink layer 600 scatters and atomizes the light, the light is uniformly distributed, the uniform light passes through the white ink layer 500, the white ink layer 500 enables the light to be uniform white light, finally, the uniform white light passes through the semi-transparent black ink layer 400 and the transparent substrate 100 and penetrates out of the upper surface of the cover plate 10, and a pattern light source displayed on the cover plate 10 is uniform white light; when the light source 21 is turned off, the semi-transparent black ink layer 400 can shield the bottom structure and has the same color with the base area 210 of the first black ink layer 200, and when viewed from the front side of the cover plate 10, the patterns in the pattern area 220 are not visible to the user, so as to achieve a better integrated display effect.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the scope of the invention. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A cover plate is applied to a display panel or a touch display panel and is characterized by comprising a transparent substrate, and a first black ink layer, a semi-transparent black ink layer, a white ink layer and a transparent atomization ink layer which are sequentially arranged on the lower surface of the transparent substrate;
the first black ink layer comprises a base area and a pattern area, and the first black ink layer is locally hollowed out in the pattern area to form a pattern;
the semi-transparent black ink layer covers the pattern area of the first black ink layer and fills the hollow area of the pattern area, and the semi-transparent black ink layer is used for shielding a bottom structure and transmitting light;
the white ink layer covers the semi-transparent black ink layer, the transparent atomizing ink layer covers the white ink layer, and the white ink layer and the transparent atomizing ink layer are used for enabling light emitted by the backlight source to become uniform white light.
2. The cover sheet according to claim 1, further comprising a second black ink layer disposed between the base area and the semi-permeable black ink layer of the first black ink layer, wherein the second black ink layer is also partially hollowed out in the pattern area to form the pattern, and a transverse dimension of the hollowed-out area of the second black ink layer is greater than a transverse dimension of the hollowed-out area of the first black ink layer to form a step portion between the second ink layer and the first ink layer at a position close to the hollowed-out area, and a minimum transverse dimension of the step portion is greater than 0.5 mm.
3. The cover sheet according to claim 1 or 2, wherein a minimum distance between an outer edge of the black ink semi-permeable layer and an outer edge of the first black ink layer or the second black ink layer hollowed-out area is greater than 0.5 mm.
4. A cover sheet as claimed in claim 1 or 2, wherein the minimum distance between the white ink layer and the outer edge of the hollowed area of the first or second black ink layer is greater than 1mm, and the thickness of the white ink layer is in the range of 5 μ ι η -10 μ ι η.
5. The cover sheet according to claim 1 or 2, wherein the minimum distance between the layer of transparent fogging ink and the outer edge of the hollowed-out area of the first or second black ink layer is greater than 1.5 mm.
6. The cover sheet according to claim 1, wherein the first black ink layer, the semi-permeable black ink layer, the white ink layer and the transparent misting ink layer each comprise a resin, a curing agent, an auxiliary agent and a solvent, the resin is a main ink structure, the curing agent is used for ensuring the crosslinking degree and the printing performance of the resin, and the auxiliary agent and the solvent are used for ensuring the printing performance of the ink; the first black ink layer, the semi-transparent black ink layer and the white ink layer respectively comprise pigments, the pigments are used for adjusting the color of the ink, the pigment of the first black ink layer is black, the pigment of the semi-transparent black ink layer is gray, and the pigment of the white ink layer is white; the transparent atomization ink layer further comprises atomization particles, and the atomization particles are uniformly distributed in the resin and used for scattering light emitted by the backlight source, so that the light distribution is uniform.
7. The cover plate according to claim 1, wherein the first black ink layer, the semi-permeable black ink layer and the white ink layer comprise the following components in parts by mass: 80-90 parts of resin; 8-12 parts of curing agent; 1-5 parts of pigment; 1-5 parts of an auxiliary agent; 10-20 parts of a solvent; the transparent atomized ink layer comprises the following components in parts by weight: 80-90 parts of resin; 8-12 parts of curing agent; 1-5 parts of assistant, 10-20 parts of solvent and 5-15 parts of atomized particles.
8. A panel assembly, wherein the panel assembly is a display panel, the panel assembly further comprising a backlight source and the cover plate of any one of claims 1-7, the backlight source being located on a side of the transparent misted ink layer facing away from the transparent substrate; the cover plate comprises a display area and a frame area, the frame area surrounds the display area, and the first black ink layer, the semi-transparent black ink layer, the white ink layer and the transparent atomization ink layer are all located in the frame area.
9. The panel assembly according to claim 8, wherein the panel assembly is a touch display panel, further comprising a touch unit covering at least a pattern area of the first black ink layer; the touch unit is positioned between the cover plate and the backlight source; or the touch unit is positioned between the transparent substrate and the first black ink layer.
10. An electronic device comprising the panel assembly of claim 8 or 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010684125.6A CN111833721A (en) | 2020-07-16 | 2020-07-16 | Cover plate, panel assembly and electronic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010684125.6A CN111833721A (en) | 2020-07-16 | 2020-07-16 | Cover plate, panel assembly and electronic equipment |
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| Publication Number | Publication Date |
|---|---|
| CN111833721A true CN111833721A (en) | 2020-10-27 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202010684125.6A Pending CN111833721A (en) | 2020-07-16 | 2020-07-16 | Cover plate, panel assembly and electronic equipment |
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| CN (1) | CN111833721A (en) |
Cited By (1)
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| CN113778260A (en) * | 2021-03-30 | 2021-12-10 | 达运精密工业股份有限公司 | Touch indication cover plate and electronic device applying same |
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Application publication date: 20201027 |