Display panel and display device

Abstract

According to the display panel provided by the embodiment of the utility model, before film formation of the gate layer, the auxiliary layer with a certain thickness is formed on the whole surface, the auxiliary layer corresponding to the silicon island is hollowed out, and then the gate layer is manufactured at the hollowed-out position. As the gate layer is a metal layer, a concave mirror effect is formed. At the moment, the silicon island is in the center of the grid electrode, and when backlight irradiation occurs, the concave grid electrode layer protects the silicon island, and light is prevented from irradiating the silicon island. Therefore, the display panel provided by the embodiment of the invention can prevent the generation of light leakage flow while not reducing the aperture opening ratio.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display, in particular to a display panel and a display device. BACKGROUND

[0002] A liquid crystal display (LCD) reduces the generation of light leakage by increasing the gate coverage silicon island area, and as the backlight brightness is continuously improved, the gate area is getting larger and larger, resulting in smaller and smaller opening. CONTENT

[0003] The present application provides a display panel and a display device, which is beneficial to reduce light leakage and increase the aperture ratio.

[0004] In a first aspect, the present application provides a display panel, comprising:

[0005] a substrate;

[0006] an auxiliary layer, the auxiliary layer is arranged on the substrate, and the auxiliary layer is provided with an auxiliary hole;

[0007] a gate layer, the gate layer is arranged in the auxiliary hole and extends to the auxiliary layer;

[0008] a gate insulating layer, the gate insulating layer is arranged on the gate layer and covers the gate layer and the auxiliary layer;

[0009] a silicon island, the silicon island is arranged on the gate insulating layer corresponding to the auxiliary hole.

[0010] In some embodiments, the auxiliary layer is made of transparent material.

[0011] In some embodiments, the material of the auxiliary layer is a silicon-nitrogen compound.

[0012] In some embodiments, further comprising a source layer, a drain layer and a protection layer; the source layer and the drain layer are arranged in the same layer and arranged on the silicon island, and both extend to the gate insulating layer, and the protection layer is arranged on the silicon island, the source layer and the drain layer and extends to the gate insulating layer.

[0013] In some embodiments, further comprising a counter substrate; the counter substrate is provided with a support column.

[0014] In some embodiments, the support column comprises a main support column and a secondary support column.

[0015] In some embodiments, the main support column is arranged corresponding to the gate layer.

[0016] In some embodiments, a projection of the auxiliary support column on the substrate is misaligned with projections of the gate layer, the source layer and the drain layer on the substrate.

[0017] In some embodiments, the protective layer and the auxiliary layer are made of the same transparent material.

[0018] In a second aspect, the present application provides a display device, comprising: a backlight substrate and the display panel described above; the backlight substrate is arranged on a side of the substrate away from the auxiliary layer.

[0019] The display panel provided by the present application can prevent the generation of light leakage without reducing the aperture ratio by first forming an auxiliary layer with a certain thickness on the whole surface before forming the gate layer, digging the auxiliary layer at the positions corresponding to the silicon islands, and then forming the gate layer at the dug positions. BRIEF DESCRIPTION OF DRAWINGS

[0020] Figure 1 is a first structural schematic view of the display panel provided by the present application;

[0021] Figure 2 is a second structural schematic view of the display panel provided by the present application;

[0022] Figure 3 is a structural schematic view of the display device provided by the present application DETAILED DESCRIPTION

[0023] The technical solutions in the embodiments of the present application will be described below with reference to the drawings in the embodiments of the present application. The described embodiments are only used to explain and describe the ideas of the present application, and should not be regarded as limiting the protection scope of the present application.

[0024] In addition, the terms "first", "second" and the like in the specification and claims of the present application are used to distinguish different objects, and are not used to describe a specific order. The terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion.

[0025] Please refer to Figure 1 , Figure 1It is the first kind of structure schematic view of the display panel provided by the utility model. The application provides a display panel 10, which comprises a substrate 101, an auxiliary layer 102, a gate layer 103, a gate insulating layer 104 and a silicon island 105. The auxiliary layer 102 is arranged on the substrate 101, and the auxiliary layer 102 is provided with an auxiliary hole 102a. The gate layer 103 is arranged in the auxiliary hole 102a and extends to the auxiliary layer 102. The gate insulating layer 104 is arranged on the gate layer 103 and covers the gate layer 103 and the auxiliary layer 102. The silicon island 105 is arranged on the gate insulating layer 104 corresponding to the auxiliary hole 102a.

[0026] The generation of light leakage is caused by the direct irradiation of light on the silicon island 105. In order to solve this problem, the utility model person first considers that the auxiliary layer 102 is formed by using a transparent protective layer 107 before the gate layer 103 is formed. Then, the auxiliary layer 102 is hollowed at the silicon island 105, and then the gate layer 103 is formed. Since the gate layer 103 is a metal layer, a concave mirror effect is formed, and at this time, the silicon island 105 is located at the center of the gate layer 103. When the backlight irradiates, the concave gate layer 103 protects the silicon island 105, prevents the light from irradiating on the silicon island 105, and thus reduces the generation of light leakage.

[0027] In the embodiment of the utility model, the substrate 101 is the basic layer of the display panel 10, the auxiliary layer 102 is arranged on the substrate 101 and is provided with the auxiliary hole 102a. The gate layer 103 is arranged in the auxiliary hole 102a and extends to the auxiliary layer 102, forming a concave mirror effect. The gate insulating layer 104 covers the gate layer 103 and the auxiliary layer 102, further enhancing the blocking effect of light leakage. The silicon island 105 is arranged on the gate insulating layer 104 corresponding to the auxiliary hole 102a, avoiding the direct irradiation of light on the silicon island 105.

[0028] Compared with the prior art, the technical scheme of the application forms the auxiliary layer 102 by using the transparent protective layer 107 before the gate layer 103 is formed, and forms the gate layer 103 after hollowing the auxiliary layer 102 at the silicon island 105, protects the silicon island 105 by using the concave mirror effect of the gate layer 103, prevents the direct irradiation of light on the silicon island 105, and effectively reduces the generation of light leakage. This design not only solves the problem of light leakage, but also avoids the problem that the opening becomes small due to the excessive gate area.

[0029] Specifically, the auxiliary layer 102 can be made of a transparent material, such as a silicon nitride compound. The gate layer 103 forms a concave mirror effect in the auxiliary hole 102a, thereby protecting the silicon island 105. The gate insulating layer 104 covers the gate layer 103 and the auxiliary layer 102, further enhancing the blocking effect on light leakage. The silicon island 105 is arranged on the gate insulating layer 104 corresponding to the auxiliary hole 102a, ensuring that light does not directly shine on the silicon island 105. Of course, the silicon nitride compound is an example in the embodiments of the present application, and is not a limitation on the material of the auxiliary layer 102.

[0030] The use of transparent materials can ensure the light transmittance of the display panel 10, and in cooperation with the auxiliary hole 102a and the gate layer 103, it helps to reduce the problem of light leakage. By selecting a transparent material as the auxiliary layer 102, the problem of how to effectively reduce light leakage while ensuring light transmittance in the display panel 10 is solved, ensuring the stability and clarity of the display effect.

[0031] The transparent material can be various suitable transparent media, for example, the silicon nitride compound is a commonly used transparent material with high hardness, high heat resistance and excellent optical performance. By using a silicon nitride compound in the auxiliary layer 102, light leakage can be effectively reduced, and high light transmittance and high contrast of the display panel 10 can be ensured. In addition, indium tin oxide (ITO) can also be used as a preferred transparent material, which has good electrical conductivity and transparency, and is suitable for display panels 10 that require high light transmittance and electrical conductivity. These materials have good light transmittance and stability, and can play an effective role in the display panel 10. Specifically, the transparent material of the auxiliary layer 102 should have high light transmittance, low light absorption and good chemical stability to ensure that there is no performance degradation during long-term use. The present application provides a more optimal solution by selecting an appropriate transparent material, ensuring the stability and clarity of the display panel 10 and improving the display effect.

[0032] The substrate 101 is used to support the display panel 10, and can generally be made of a hard material such as glass. For a flexible display panel 10, a flexible material can be used as a support layer. For example, it can be formed from polyimide (PI), polycarbonate (PC), polyether sulfone (PES), polyethylene terephthalate (PET), polyethylene naphthalate (PEN), polyarylate (PAR), or glass fiber reinforced plastic (FRP) and other polymer materials.

[0033] The gate layer 103 can be made of a metal material. The metal material includes one or more combinations of silver (Ag), gold (Au), copper (Cu), etc. Among them, silver, aluminum, copper and other metals have good electrical conductivity and low cost, which can reduce production costs while ensuring electrical conductivity.

[0034] In some embodiments, the display panel 10 further comprises a source electrode layer 106a, a drain electrode layer 106b, and a protective layer 107. The source electrode layer 106a and the drain electrode layer 106b are arranged in the same layer and are arranged on the silicon island 105 and both extend to the gate insulating layer 104. The protective layer 107 is arranged on the silicon island 105, the source electrode layer 106a, and the drain electrode layer 106b and extends to the gate insulating layer 104. The source electrode layer 106a and the drain electrode layer 106b can be made of metal materials, including one or more combinations of silver (Ag), gold (Au), copper (Cu), aluminum (Al), and aluminum alloy, to achieve good electrical conductivity. The protective layer 107 can be made of a transparent material, such as a silicon nitride compound, to ensure that the electrode layer is protected while not affecting the display effect.

[0035] Please refer to Figure 2 , Figure 2 is a second structural schematic diagram of the display panel provided by the present application. The display panel 10 further comprises a counter substrate 108. The counter substrate 108 is provided with a support column 109. In the display panel 10, by increasing the counter substrate 108 and arranging the support column 109 thereon, the overall structural strength and stability of the panel can be effectively improved, and deformation or damage of the panel caused by external force or other factors can be prevented.

[0036] The design of the counter substrate 108 and the support column 109 can have multiple implementation ways. For example, the support column 109 can be made of various materials, such as metal or high-strength plastic, to ensure its reliability in different environments. The shape and size of the support column 109 can be adjusted according to actual needs to provide the best support effect. Further, multiple support columns 109 can be arranged at different positions of the counter substrate 108 to evenly distribute stress and avoid structural damage caused by local stress concentration. As a preferred embodiment, the support column 109 can be designed as a hollow structure to reduce weight while maintaining sufficient strength.

[0037] Among them, the support column 109 can include a main support column 1091 and a secondary support column 1092. By introducing the combined design of the main support column 1091 and the secondary support column 1092, the weight and stress of the display panel 10 can be effectively dispersed and supported. The number and distribution of the main support column 1091 and the secondary support column 1092 can be adjusted according to the size and weight of the display panel 10 to achieve the best support effect.

[0038] In some embodiments, the main support column 1091 is arranged corresponding to the gate electrode layer 103. The position of the main support column 1091 can also be adjusted according to the distribution of the gate electrode layer 103 to ensure that it can effectively support the key parts of the display panel 10.

[0039] In some embodiments, the projection of the auxiliary support column 1092 on the substrate 101 is offset from the projections of the gate layer 103, the source layer 106a, and the drain layer 106b on the substrate 101. By offsetting the projection of the auxiliary support column 1092 on the substrate 101 from the projections of the gate layer 103, the source layer 106a, and the drain layer 106b on the substrate 101, the positions of the main support column 1091 and the auxiliary support column 1092 can be dispersed as much as possible, thereby improving the performance and reliability of the display panel 10.

[0040] In addition, the gate layer 103 is usually a high point of the substrate 101. Generally, the support column stands at a position corresponding to the gate layer 103. However, in the existing display panel 10, two types of support columns, i.e., the main support column 1091 and the auxiliary support column 1092, are provided. In order to reduce costs, support columns with the same height are often made, and then the step difference between the main support column 1091 and the auxiliary support column 1092 is realized by standing at different positions. For example, the main support column 1091 stands at a position corresponding to the gate layer 103, and the auxiliary support column 1092 stands at a position offset from the gate layer 103, the source layer 106a, and the drain layer 106b. However, due to inconsistent metal thicknesses of different products, the step difference between the main support column 1091 and the auxiliary support column 1092 cannot be completely controlled, thereby affecting the product quality.

[0041] In the present embodiment, the thickness of the auxiliary layer 102 can be changed to ensure that the step difference of different products is consistent, thereby ensuring the quality of the products.

[0042] In some embodiments, the protective layer 107 and the auxiliary layer 102 are made of the same transparent material. By using the same transparent material, the overall transparency and material consistency of the display panel 10 can be ensured while maintaining the transparency of the display panel 10, thereby avoiding optical performance differences and interface problems caused by different materials. Specifically, the protective layer 107 and the auxiliary layer 102 are made of the same transparent material, such as a transparent material such as a silicon nitride compound. Such a material has good optical transparency and mechanical strength, and can effectively protect the various hierarchical structures of the display panel 10 while maintaining its transparency. Further, by controlling the purity and thickness of the material, the optical performance and durability of the display panel 10 can be optimized.

[0043] Please refer to Figure 3 , Figure 3It is a structural schematic view of the display device provided by the utility model. The application provides a display device 100, comprising: a backlight substrate 20 and the above display panel 10;The backlight substrate 20 is arranged on the side of the substrate 101 away from the auxiliary layer 102.Through this design, the backlight substrate 20 can provide the necessary light source, and the display panel 10 realizes image display, and the combination of the two makes the display device 100 can work normally.The scheme sets the backlight substrate 20 on the side of the substrate 101 away from the auxiliary layer 102, solves the problem of how to integrate the display panel 10 and the backlight substrate 20 in the display device 100, and ensures the normal operation of the display device 100.

[0044] Further, the backlight substrate 20 can be made of various materials, such as aluminum substrate 101, glass substrate 101, etc.The backlight substrate 20 can be provided with a plurality of LED light sources to provide uniform backlight illumination.

[0045] The display device 100 provided by the application first forms an auxiliary layer 102 of a certain thickness on the whole surface before the formation of the gate layer 103, then digs the auxiliary layer 102 at the corresponding position of the silicon island 105, and then forms the gate layer 103 at the dug position, because the gate layer 103 is a metal layer, it will form a concave mirror effect.At this time, the silicon island 105 is in the center of the gate, and when the backlight is irradiated, the concave gate layer 103 protects the silicon island 105 from light irradiation.Therefore, the generation of light leakage can be prevented without reducing the aperture ratio.

[0046] Of course, the application can also have other various embodiments, and those skilled in the art can make various corresponding changes and modifications according to the application without departing from the spirit and essential characteristics of the application, but these corresponding changes and modifications should all belong to the protection scope of the claims attached to the application.

Claims

1. A display panel, characterized by, The application relates to a display panel, comprising: a substrate; an auxiliary layer arranged on the substrate, the auxiliary layer being provided with an auxiliary hole; a gate layer arranged in the auxiliary hole and extending to the auxiliary layer; a gate insulating layer arranged on the gate layer and covering the gate layer and the auxiliary layer; a silicon island arranged on the gate insulating layer and corresponding to the auxiliary hole.

2. The display panel of claim 1, wherein, The auxiliary layer is made of transparent material.

3. The display panel of claim 2, wherein, The auxiliary layer is made of silicon nitride.

4. The display panel of claim 1, wherein, The display panel further comprises a source layer, a drain layer and a protective layer; the source layer and the drain layer are arranged in the same layer and arranged on the silicon island, and both extend to the gate insulating layer; the protective layer is arranged on the silicon island, the source layer and the drain layer and extends to the gate insulating layer.

5. The display panel of claim 4, wherein, The display panel further comprises a counter substrate; the counter substrate is provided with a support column.

6. The display panel of claim 5, wherein, The support column comprises a main support column and a secondary support column.

7. The display panel of claim 6, wherein, The main support column corresponds to the gate layer.

8. The display panel of claim 6, wherein, The projection of the secondary support column on the substrate is staggered with the projections of the gate layer, the source layer and the drain layer on the substrate.

9. The display panel of claim 4, wherein, The protective layer and the auxiliary layer are made of the same transparent material.

10. A display device, characterized by comprising: The application further relates to a display device, comprising: a backlight substrate and the display panel according to any one of claims 1 to 9; the backlight substrate is arranged on the side of the substrate away from the auxiliary layer.

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