CN112198700A

CN112198700A - Display device

Info

Publication number: CN112198700A
Application number: CN202011058900.3A
Authority: CN
Inventors: 张凯迪; 吕绍和; 邱柏钧
Original assignee: AU Optronics Kunshan Co Ltd
Current assignee: AU Optronics Kunshan Co Ltd
Priority date: 2020-09-30
Filing date: 2020-09-30
Publication date: 2021-01-08

Abstract

The present invention provides a display device, comprising: a first substrate having a display region and a peripheral region disposed adjacent to each other; the pixel units are arranged in the display area; the second substrate is arranged opposite to the first substrate; a color resistance layer arranged on the second substrate and corresponding to the display region; a first light shielding layer disposed on the second substrate and corresponding to the display region; the second shading layer is arranged on the second substrate and corresponds to the peripheral area in position; the supporting structure is arranged on the first shading layer and the second shading layer; the color resistance layer and the first light shielding layer are arranged alternately, the color resistance layer is provided with a first thickness, the first light shielding layer is provided with a second thickness, the second light shielding layer is provided with a third thickness, the second thickness is larger than or equal to the first thickness, and the second thickness is equal to the third thickness.

Description

Display device

Technical Field

The present invention relates to a display device, and more particularly, to a display device with a good display effect.

Background

With the development of technology, display devices are widely used in many electronic products, such as mobile phones, tablet computers, watches, and the like.

The inner/outer of the display area of the prior display device has different designs/structures due to different requirements, so that the inner/outer of the display area has height difference, uneven terrain is easily formed, the content of liquid crystal is influenced, and the phenomenon of uneven brightness is caused; in addition, the inventor discovers that under the condition that the display device is extruded by external force, the support structures are damaged due to uneven stress caused by height drop, and therefore bright spots can appear when the display device is extruded by the external force.

Therefore, how to avoid the height drop of the inner structure and the outer structure of the display area, reduce the phenomenon of uneven display, improve the display effect of the product and solve the problem.

Disclosure of Invention

In order to solve the above technical problems, the present invention provides a display device, which can better avoid the height difference between the inner and outer structures of the display area, reduce the occurrence of uneven display, and improve the display effect of the product.

The present invention provides a display device, comprising: a first substrate having a display region and a peripheral region disposed adjacent to each other; the pixel units are arranged in the display area; the second substrate is arranged opposite to the first substrate; a color resistance layer arranged on the second substrate and corresponding to the display region; a first light shielding layer disposed on the second substrate and corresponding to the display region; the second shading layer is arranged on the second substrate and corresponds to the peripheral area in position; the supporting structure is arranged on the first shading layer and the second shading layer; the color resistance layer and the first light shielding layer are arranged alternately, the color resistance layer is provided with a first thickness, the first light shielding layer is provided with a second thickness, the second light shielding layer is provided with a third thickness, the second thickness is larger than or equal to the first thickness, and the third thickness is the same as the second thickness.

In the display device, the color-resist layer includes a first color-resist layer, a second color-resist layer and a third color-resist layer.

In an embodiment, the support structure includes a first support structure and a second support structure, the first support structure corresponds to the first light shielding layer, and the second support structure corresponds to the second light shielding layer.

The display device described above, further comprising: the flat layer is arranged on the second substrate and covers the first shading layer, the second shading layer and the color resistance layer, and the supporting structure is arranged on the flat layer and corresponds to the first shading layer and the second shading layer in position.

In the display device, a thickness of the planarization layer is between 1.5 micrometers and 2 micrometers.

In the display device, a thickness of the planarization layer is between 0 micron and 1.5 micron.

In the display device, the color resist layer is not disposed between the support structure and the second light shielding layer.

In the display device, the first supporting structure directly contacts the first light-shielding layer, and the second supporting structure directly contacts the second light-shielding layer.

In the display device, the first support structure and the second support structure have the same thickness.

In conclusion, the heights of the first light shielding layer and the second light shielding layer are set to be equal to and greater than the height of the color resistance layer, so that the heights of the inner structure and the outer structure of the display area can be better consistent, the phenomenon of uneven display is reduced, the supporting performance of the supporting structure is improved, and the pressure resistance performance of the product and the overall display effect are improved; by eliminating the arrangement of the flat layer or reducing the thickness of the flat layer, the processing time of the product is reduced, and the material of the flat layer is saved, so that the preparation efficiency is improved, and the product cost is reduced.

The invention is described in detail below with reference to the drawings and specific examples, but the invention is not limited thereto.

Drawings

Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the invention.

FIG. 2A is a schematic cross-sectional view of the structure taken along line Q-Q' in FIG. 1 according to an embodiment of the present invention.

FIG. 2B is a schematic cross-sectional view of another embodiment of the present invention taken along line Q-Q' of FIG. 1.

FIG. 2C is a cross-sectional view of a structure taken along line Q-Q' in FIG. 1 according to still another embodiment of the present invention.

Reference numerals

100: display device

101: first substrate

102: second substrate

103: color resist layer

104: a first light-shielding layer

105: a second light-shielding layer

106: first supporting structure

107: second support structure

108: planarization layer

AA: display area

BA: peripheral zone

IC: control circuit

h1, h2, d1, d 2: thickness of

Detailed Description

The invention will be described in detail with reference to the following drawings, which are provided for illustration purposes and the like:

fig. 1 is a schematic structural diagram of a display device according to an embodiment of the invention. As shown in fig. 1, the display device 100 includes a first substrate 101 and a second substrate 102, wherein the first substrate 101 and the second substrate 102 are disposed opposite to each other. The first substrate 101 has a display area AA and a peripheral area BA adjacent to each other, wherein a plurality of pixel units (not shown) are disposed in the display area AA, and the plurality of pixel units may be arranged in an array, for example, in a plurality of rows along a first direction (e.g., a horizontal direction) and in a plurality of columns along a second direction (e.g., a vertical direction), and each pixel unit has at least one thin film transistor (not shown); a control circuit IC is disposed in the peripheral area BA, and the control circuit IC is electrically connected to the plurality of pixel units through a wiring line, and transmits signals or data through the wiring line.

FIG. 2A is a schematic cross-sectional view of the structure taken along line Q-Q' in FIG. 1 according to an embodiment of the present invention. As shown in fig. 2A, the color-resisting layer 103 is disposed on the second substrate 102 and located in the display area AA, in the embodiment, the thickness of the color-resisting layer 103 is h1, specifically, the color-resisting layer 103 may include, for example, a first color-resisting layer, a second color-resisting layer and a third color-resisting layer, the thicknesses of the first color-resisting layer, the second color-resisting layer and the third color-resisting layer are equal and all h1, in addition, the first color-resisting layer may be, for example, red, the second color-resisting layer may be, for example, green, and the third color-resisting layer may be, for example, blue, which is not limited in the disclosure. The first light-shielding layer 104 is disposed on the second substrate 102 and located in the display area AA, and the thickness of the first light-shielding layer 104 is set to h2, and the value of h2 is greater than the value of h1, i.e., h2 > h1, in this embodiment, the thickness h2 of the first light-shielding layer 104 is greater than the thickness h1 of the color-resist layer 103, which is not limited by the disclosure, in other embodiments, the thickness h2 of the first light-shielding layer 104 may be equal to the thickness h1 of the color-resist layer 103, so the thickness h2 of the first light-shielding layer 104 and the thickness h1 of the color-resist layer 103 may be set to h2 ≧ h 1. The second light-shielding layer 105 is also disposed on the second substrate 102 and located in the peripheral region BA, and the thickness of the second light-shielding layer 105 is also set to h2, that is, the thickness of the second light-shielding layer 105 is equal to the thickness of the first light-shielding layer 104, and the thickness h2 of the first light-shielding layer 104 and the second light-shielding layer 105 is greater than or equal to the thickness h1 of the color-resist layer 103. The supporting structures are disposed on the first and second light-

shielding layers

104 and 105, and in this embodiment, the supporting structures may include a first supporting structure 106 and a second supporting structure 107, wherein the first supporting structure 106 is disposed on the first light-shielding layer 104 and located in the display area AA, the second supporting structure 107 is disposed on the second light-shielding layer 105 and located in the peripheral area BA, and the first supporting structure 106 and the second supporting structure 107 are in direct contact with the first and second light-

shielding layers

104 and 105, respectively, and the first supporting structure 106 and the second supporting structure 107 have the same thickness.

FIG. 2B is a schematic cross-sectional view of another embodiment of the present invention taken along line Q-Q' of FIG. 1. As shown in fig. 2B, the present embodiment is similar to the embodiment of fig. 2A, and only the differences between the two embodiments are described herein, and the rest of the similarities are not repeated herein. In this embodiment, the display device 100 further includes a flat layer 108, the flat layer 108 is disposed on the second substrate 102 and covers the first light-shielding layer 104, the second light-shielding layer 105 and the color-resist layer 103, and correspondingly, the supporting structure is disposed on the flat layer 108 and its position corresponds to the first light-shielding layer 104 and the second light-shielding layer 105; in addition, the thickness of the planarization layer 108 may be set to d1, with a d1 value ranging from 1.5 microns to 2 microns, for example.

FIG. 2C is a cross-sectional view of a structure taken along line Q-Q' in FIG. 1 according to still another embodiment of the present invention. As shown in fig. 2C, the present embodiment is similar to the embodiment of fig. 2B, and only the differences therebetween are described herein, and the rest of the similarities are not repeated herein. In the present embodiment, the thickness of the planarization layer 108 is d2, and the thickness of the planarization layer 108 can be properly reduced, specifically, the thickness d2 of the planarization layer 108 can be reduced more than the thickness d1 of the planarization layer 108 in the embodiment of fig. 2B, and preferably, the d2 value ranges from 0 to 1.5 μm, since the heights of the first and second light shielding layers are equal to or greater than the height of the color resist layer, the height of the inner and outer structures of the display area can be preferably consistent, so that the planarization layer can be omitted or reduced, the manufacturing time of the product can be reduced, the material of the planarization layer can be saved, the manufacturing efficiency can be improved, and the product cost can be reduced.

In summary, the heights of the first light-shielding layer and the second light-shielding layer are set to be equal to and greater than the height of the color-resisting layer, so that the heights of the inner structure and the outer structure of the display area can be better consistent, the occurrence of uneven display is reduced, the supporting performance of the supporting structure is improved, and the pressure resistance, the click durability and the overall display effect of the product are improved.

The present invention may be embodied in other specific forms without departing from the spirit or essential attributes thereof, and it should be understood that various changes and modifications can be effected therein by one skilled in the art without departing from the spirit and scope of the invention as defined in the appended claims.

Claims

1. A display device, comprising:

a first substrate having a display region and a peripheral region disposed adjacent to each other;

the pixel units are arranged in the display area;

the second substrate is arranged opposite to the first substrate;

a color resistance layer arranged on the second substrate and corresponding to the display region;

a first light shielding layer disposed on the second substrate and corresponding to the display region;

the second shading layer is arranged on the second substrate and corresponds to the peripheral area in position; and

a supporting structure disposed on the first and second light shielding layers;

the color resistance layer and the first light shielding layer are arranged alternately, the color resistance layer is provided with a first thickness, the first light shielding layer is provided with a second thickness, the second light shielding layer is provided with a third thickness, the second thickness is larger than or equal to the first thickness, and the second thickness is equal to the third thickness.

2. The display device of claim 1, wherein the color-resist layer comprises a first color-resist layer, a second color-resist layer, and a third color-resist layer.

3. The display device according to claim 1, wherein the support structure comprises a first support structure and a second support structure, the first support structure corresponds to the first light shielding layer, and the second support structure corresponds to the second light shielding layer.

4. The display device of claim 1, further comprising:

the flat layer is arranged on the second substrate and covers the first shading layer, the second shading layer and the color resistance layer, and the supporting structure is arranged on the flat layer and corresponds to the first shading layer and the second shading layer in position.

5. The display device of claim 4, wherein the planarization layer has a thickness of between 1.5 microns and 2 microns.

6. The display device of claim 4, wherein the planarization layer has a thickness of between 0 microns and 1.5 microns.

7. The display device according to claim 1, wherein the color resist layer is not provided between the support structure and the second light shielding layer.

8. The display device according to claim 3, wherein the first support structure directly contacts the first light-shielding layer, and wherein the second support structure directly contacts the second light-shielding layer.

9. The display apparatus of claim 3, wherein the first support structure and the second support structure are of equal thickness.