Integrated PMOLED display screen capable of improving transparency

Abstract

The utility model discloses an integrated PMOLED display screen for improving transparency, which comprises a lower substrate, an upper substrate, an upper polaroid and a cover plate, the lower substrate comprises a visible area and a non-visible area outside the visible area, the lower surface of the lower substrate in the non-visible area is provided with a desiccant, and the desiccant is a silica gel transparent desiccant; the upper substrate is arranged on the upper surface of the lower substrate, the lower substrate is longer than the upper substrate and extends outwards to form a step, and a driving IC (integrated circuit) and an FPC (flexible printed circuit) are bound on the upper surface of the lower substrate at the step; the upper polaroid is arranged on the upper surface of the upper substrate; and the cover plate is arranged above the upper polaroid. According to the PMOLED display screen, the drying agent is arranged on the lower surface of the lower substrate in the non-visual area, the drying agent is the transparent silica gel drying agent, and the transparent silica gel drying agent can be integrated with the upper substrate and the lower substrate, so that the transparent integration effect is improved, and the visual effect of the PMOLED display screen is further improved.

Description

Technical Field

[0001] The utility model relates to the technical field of liquid crystal display, and more specifically to a PMOLED display screen with improved transparency and integration. Background Art

[0002] When manufacturing PMOLED displays, desiccants are needed to remove the moisture and humidity that may remain during the manufacturing process to ensure the dryness and stability of the materials. Desiccants can absorb moisture in the air, thereby maintaining the dryness of the manufacturing environment and ensuring the quality and stability of PMOLED manufacturing. Traditional PMOLED displays usually use white desiccants. White desiccants and transparent glass make it impossible to achieve transparent integration of the display during use, affecting the visual effect in certain fields and reducing the competitiveness of the product. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to improve the transparent integration effect of the PMOLED display screen, thereby improving the competitiveness of the product.

[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0005] In order to solve the above technical problems, the utility model provides a PMOLED display screen with improved transparency and integration, which includes a lower substrate, an upper substrate, an upper polarizer and a cover plate, the lower substrate includes a visible area and a non-visible area outside the visible area, the lower surface of the lower substrate located in the non-visible area is provided with a desiccant, and the desiccant is a silica gel transparent desiccant; the upper substrate is arranged on the upper surface of the lower substrate, the lower substrate is longer than the upper substrate and extends outward to form a step, and the upper surface of the lower substrate located at the step is bound with a driving IC and an FPC; the upper polarizer is arranged on the upper surface of the upper substrate; the cover plate is arranged above the upper polarizer.

[0006] As a preferred implementation of the PMOLED display screen with enhanced transparency and integration provided by the utility model, the FPC includes a substrate layer, a circuit layer arranged on the upper surface of the substrate layer, and a metal heat dissipation layer arranged on the lower surface of the substrate layer.

[0007] As a preferred implementation of the PMOLED display screen with improved transparency and integration provided by the utility model, the FPC also includes at least one through-hole penetrating the substrate layer, the circuit layer and the metal heat dissipation layer, and the inner wall of the through-hole is provided with a thermal conductive layer in contact with the circuit layer and the metal heat dissipation layer.

[0008] As a preferred implementation of the PMOLED display screen with enhanced transparency and integration provided by the utility model, a heat conductor connected to an external heat-conducting structure is arranged in the through hole, and the heat conductor is in contact with the heat-conducting layer.

[0009] As a preferred implementation of the PMOLED display screen with enhanced transparency and integration provided by the utility model, the structure of the metal heat dissipation layer is a mesh structure, a strip structure, a wavy structure or a honeycomb structure.

[0010] As a preferred implementation of the PMOLED display screen with enhanced transparency and integration provided by the utility model, a plurality of grooves are formed on the upper surface of the cover plate by etching, and a plastic layer is covered on the upper side of the cover plate, and the plastic layer is embedded in the plurality of grooves.

[0011] As a preferred implementation of the PMOLED display screen with enhanced transparency and integration provided by the utility model, the shape of the groove is square or circular.

[0012] As a preferred implementation of the PMOLED display screen with enhanced transparency and integration provided by the utility model, the groove is a closing groove that is narrow on the outside and wide on the inside.

[0013] As a preferred implementation of the PMOLED display screen with enhanced transparency and integration provided by the utility model, the inner surface of the groove is provided with a surface treatment layer for enhancing the surface roughness.

[0014] As a preferred implementation of the PMOLED display screen with enhanced transparency and integration provided by the utility model, the plastic layer located in the visible area is transparent plastic.

[0015] The utility model has the following beneficial effects:

[0016] Since a desiccant is provided on the lower surface of the lower substrate located in the non-visible area, and the desiccant is a transparent silica gel desiccant, the transparent silica gel desiccant can be integrated with the upper substrate and the lower substrate, thereby improving the transparent integration effect, thereby improving the visual effect of the PMOLED display screen, and improving the competitiveness of the PMOLED display screen, thereby meeting the growing quality requirements of manufacturers. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1The utility model provides a structural schematic diagram of a PMOLED display screen with improved transparency and integration.

[0019] Figure 2 for Figure 1 Bottom view of the middle and lower substrates.

[0020] Figure 3 This is a schematic diagram of the structure of Example 2.

[0021] Figure 4 This is a schematic diagram of the structure of Example 3.

[0022] Figure 5 for Figure 4 Schematic diagram of the decomposition structure.

[0023] Figure 6 for Figure 4 Schematic diagram of the improved structure.

[0024] Description of Figure Numbers:

[0025] Lower substrate 1; upper substrate 2; upper polarizer 3; cover plate 4; visible area 101; non-visible area 102; desiccant 11; driver IC 5; FPC 6;

[0026] Base material layer 61; circuit layer 62; metal heat dissipation layer 63; through hole 64;

[0027] Plastic layer 7; groove 41. DETAILED DESCRIPTION

[0028] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0029] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0030] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0031] The utility model provides a PMOLED display screen with improved transparency and integration, which comprises a lower substrate, an upper substrate, an upper polarizer and a cover plate, wherein the lower substrate comprises a visible area and a non-visible area outside the visible area, a desiccant is arranged on the lower surface of the lower substrate located in the non-visible area, and the desiccant is a silica gel transparent desiccant; the upper substrate is arranged on the upper surface of the lower substrate, the lower substrate is longer than the upper substrate and extends outward to form a step, a driving IC and an FPC are bound to the upper surface of the lower substrate located at the step; the upper polarizer is arranged on the upper surface of the upper substrate; and the cover plate is arranged above the upper polarizer.

[0032] Since a desiccant is provided on the lower surface of the lower substrate located in the non-visible area, and the desiccant is a transparent silica gel desiccant, the transparent silica gel desiccant can be integrated with the upper substrate and the lower substrate, thereby improving the transparent integration effect, thereby improving the visual effect of the PMOLED display screen, and improving the competitiveness of the PMOLED display screen, thereby meeting the growing quality requirements of manufacturers.

[0033] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention.

[0034] Example 1

[0035] See also Figure 1 and Figure 2, a PMOLED display screen with improved transparency and integration provided by the utility model, comprising a lower substrate 1, an upper substrate 2, an upper polarizer 3 and a cover plate 4, the lower substrate 1 comprising a visible area 101 and a non-visible area 102, the non-visible area 102 being located outside the visible area 101, a desiccant 11 being arranged on the lower surface of the lower substrate 1 located in the non-visible area 102, the desiccant 11 being a silica gel transparent desiccant 11; the upper substrate 2 being arranged on the upper surface of the lower substrate 1, the lower substrate 1 being longer than the upper substrate 2 and extending outward to form a step, a driving IC 5 and an FPC 6 being bound to the upper surface of the lower substrate 1 located at the step; the upper polarizer 3 being arranged on the upper surface of the upper substrate 2; the cover plate 4 being arranged above the upper polarizer 3.

[0036] Example 2

[0037] See also Figure 3 As a further optimization scheme of Example 1, in this embodiment, the FPC6 includes a substrate layer 61, a circuit layer 62 arranged on the upper surface of the substrate layer 61, and a metal heat dissipation layer 63 arranged on the lower surface of the substrate layer 61. The arrangement method can be that the circuit layer 62 and the metal heat dissipation layer 63 are respectively attached to the substrate layer 61 by double-sided adhesive. Since the thickness of the substrate layer 61 is relatively thin, the heat on the FPC6 can be diffused to the metal heat dissipation layer 63 through the substrate layer 61. The metal heat dissipation layer 63 can effectively increase the heat dissipation area of ​​the FPC6 and play a role in uniform heat dissipation, thereby improving the heat dissipation efficiency of the FPC6. The substrate layer 61 can be any one of polyimide, polyester, polysulfone or polytetrafluoroethylene, the double-sided adhesive is any one of an acrylic adhesive layer or an epoxy resin adhesive layer, and the metal heat dissipation layer 63 can be a copper foil layer.

[0038] Furthermore, the FPC 6 also includes at least one through-hole 64 penetrating the substrate layer 61, the circuit layer 62 and the metal heat dissipation layer 63, and the inner wall of the through-hole 64 is provided with a heat-conducting layer in contact with the circuit layer 62 and the metal heat dissipation layer 63. By utilizing the good thermal conductivity of the through-hole 64, the circuit layer 62 and the metal heat dissipation layer 63 on both sides of the substrate layer 61 can be electrically connected to play a good thermal conductivity function, and the thermal conductive layer can provide a thermal conductive function to achieve a good heat dissipation effect. Among them, the thermal conductive layer can be a copper glue conductive ink layer.

[0039] Furthermore, a heat conductor connected to an external heat-conducting structure is disposed in the through hole 64. The heat conductor is connected to the external heat-conducting structure from one side of the circuit layer 62 and is also in contact with the heat-conducting layer in the through hole 64, so that the circuit layer 62 and the metal heat dissipation layer 63 can be connected to the external heat-conducting structure through the through hole 64, so that the heat in the FPC 6 can be diffused to the external heat-conducting structure through the heat conductor in the through hole 64, so as to further improve the heat dissipation efficiency of the FPC 6. Preferably, in order to enable the through hole 64 to be connected to the external heat-conducting structure, the through hole 64 is disposed at the edge of the FPC 6.

[0040] Furthermore, the metal heat dissipation layer 63 is a uniform heat dissipation structure, and its structure can be any one of a mesh structure, a strip structure, a wavy structure or a honeycomb structure. Through the uniform heat dissipation structure, the heat dissipation effect can be better improved.

[0041] Example 3

[0042] See also Figures 4 to 6 As a further optimization scheme of Example 1, in this embodiment, the upper surface of the cover plate 4 is covered with a plastic layer 7, and a plurality of grooves 41 are formed downward on the upper surface of the cover plate 4 by etching, and a portion of the lower surface of the plastic layer 7 is embedded in each groove 41. Since the surface of the groove 41 formed by etching has a certain degree of roughness, the plastic layer 7 can be tightly bonded to the groove 41 to prevent the cover plate 4 and the plastic layer 7 from falling off. Since the upper part of the cover plate 4 is covered with a plastic layer 7, and a plurality of grooves 41 are formed on the upper surface of the cover plate 4 by etching, and the plastic layer 7 can be embedded in the interior of the plurality of grooves 41, the grooves 41 formed by etching make the inner surface of the grooves 41 have a certain degree of roughness, and the surface of the grooves 41 with a certain degree of roughness can improve the bonding force between the grooves 41 and the plastic layer 7, thereby reducing the possibility of separation of the grooves 41 and the plastic layer 7. When the LCD screen is hit or falls, the plastic layer 7 on the upper surface of the cover plate 4 can directly withstand the external force, thereby preventing the external force from directly acting on the cover plate 4. Since the plastic layer 7 can absorb most of the energy, the remaining external force is very weak when it acts on the cover plate 4, thereby effectively reducing the risk of the cover plate 4 being broken or damaged; and when the LCD screen is subjected to external force, even if the external force is large, it will only damage the plastic layer 7 on the upper surface of the cover plate 4, and will not directly damage the cover plate 4. Therefore, it can be avoided that the cover plate 4 is damaged and the LCD screen cannot be used normally, which brings a better user experience to the user and improves the anti-fall ability of the LCD screen.

[0043] Furthermore, the shape of the groove 41 can be square or circular, and the cross-sectional shape of the groove 41 can be a closing groove that is narrow on the outside and wide on the inside. In the present embodiment, the cross-sectional shape of the groove 41 is an isosceles trapezoid, and the groove 41 is in the shape of an elongated strip. The isosceles trapezoid-shaped groove 41 can allow the plastic layer 7 to be tightly embedded in the groove 41, thereby preventing the groove 41 from separating from the plastic layer 7, thereby preventing the cover plate 4 from falling off from the plastic layer 7. The elongated groove 41 can increase the fitting portion between the plastic layer 7 and the groove 41, thereby increasing the fitting strength between the groove 41 and the plastic layer 7.

[0044] Furthermore, a surface treatment layer for improving the surface roughness is provided on the inner surface of the groove 41 to further improve the adhesion between the groove 41 and the plastic layer 7 and prevent the cover plate 4 and the plastic layer 7 from being separated.

[0045] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0046] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A PMOLED display screen with improved transparency and integration, It is characterized in that It includes: A lower substrate, comprising a visible area and a non-visible area outside the visible area, wherein a desiccant is disposed on the lower surface of the lower substrate in the non-visible area, and the desiccant is a silica gel transparent desiccant; An upper substrate, which is arranged on the upper surface of the lower substrate, the lower substrate is longer than the upper substrate and extends outward to form a step, and a driver IC and an FPC are bound to the upper surface of the lower substrate located at the step; An upper polarizer, which is disposed on the upper surface of the upper substrate; A cover plate is arranged above the upper polarizer.

2. The PMOLED display screen with improved transparency and integration according to claim 1, It is characterized in that The FPC includes a substrate layer, a circuit layer disposed on an upper surface of the substrate layer, and a metal heat dissipation layer disposed on a lower surface of the substrate layer.

3. The PMOLED display screen with improved transparency and integration according to claim 2, It is characterized in that The FPC further includes at least one through-hole penetrating the substrate layer, the circuit layer and the metal heat dissipation layer, and an inner wall of the through-hole is provided with a heat-conducting layer in contact with the circuit layer and the metal heat dissipation layer.

4. The PMOLED display screen with improved transparency and integration according to claim 3, It is characterized in that A heat conductor connected to an external heat-conducting structure is arranged in the through hole, and the heat conductor is in contact with the heat-conducting layer.

5. The PMOLED display screen with improved transparency and integration according to claim 1, It is characterized in that A plurality of grooves are formed on the upper surface of the cover plate by etching, and a plastic layer is covered on the upper side of the cover plate, and the plastic layer is embedded in the plurality of grooves.

6. The PMOLED display screen with improved transparency and integration according to claim 5, It is characterized in that The shape of the groove is square or circular.

7. The PMOLED display screen with improved transparency and integration according to claim 5, It is characterized in that The groove is a closing groove which is narrow outside and wide inside.

8. The PMOLED display screen with improved transparency and integration according to claim 5, It is characterized in that The inner surface of the groove is provided with a surface treatment layer for improving the surface roughness.

9. The PMOLED display screen with improved transparency and integration according to claim 5, It is characterized in that The plastic layer located in the visible area is transparent plastic.

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