CN112631029A

CN112631029A - Display device

Info

Publication number: CN112631029A
Application number: CN202011537584.8A
Authority: CN
Inventors: 吴佳蓉; 王弘毅; 余悌魁; 徐雅玲
Original assignee: AU Optronics Corp
Current assignee: AU Optronics Corp
Priority date: 2020-07-27
Filing date: 2020-12-23
Publication date: 2021-04-09
Anticipated expiration: 2040-12-23
Also published as: CN112631029B; TW202204991A; TWI738436B

Abstract

A display device comprises a backlight module, a color display panel and a grating panel. The grating panel and the color display panel are positioned at the same side of the backlight module. The color display panel comprises a plurality of first scanning lines extending along a first direction, a plurality of first data lines extending along a second direction, and a plurality of first sub-pixels electrically connected with the first scanning lines and the first data lines. The raster panel comprises a plurality of second scanning lines, a plurality of second data lines staggered with the second scanning lines, a plurality of common signal lines and a plurality of second sub-pixels electrically connected with the second scanning lines and the second data lines. The common signal line is parallel to the second scan line or parallel to the second data line. The second scanning line, the second data line and the common signal line are waved.

Description

Display device

Technical Field

The present invention relates to a display device, and more particularly, to a display device including a lenticular panel.

Background

In recent years, in order to increase the contrast ratio of brightness and darkness of a display device, a raster panel is often superimposed on a color display panel. The raster panel is a panel capable of controlling the passage of light. In the portion where light is not desired to pass (for example, the black portion of the display), the light can be blocked by the grating panel, and in the portion where light is desired to pass (for example, the color portion of the display), the light can pass by the grating panel, thereby increasing the brightness contrast of the display device. However, the raster panel and the color display panel are likely to interfere with each other, so that the display screen has a moire (moire pattern) problem.

Disclosure of Invention

The invention provides a display device, which can improve the display quality of a display picture.

At least one embodiment of the present invention provides a display device, which includes a backlight module, a color display panel, and a grating panel. The grating panel and the color display panel are positioned at the same side of the backlight module. The color display panel comprises a plurality of first scanning lines extending along a first direction, a plurality of first data lines extending along a second direction, and a plurality of first sub-pixels electrically connected with the first scanning lines and the first data lines. The raster panel comprises a plurality of second scanning lines, a plurality of second data lines staggered with the second scanning lines, a plurality of common signal lines and a plurality of second sub-pixels electrically connected with the second scanning lines and the second data lines. The extending direction of the common signal line is parallel to the extending direction of the second scanning line or parallel to the extending direction of the second data line. The second scanning line, the second data line and the common signal line are waved.

At least one embodiment of the invention provides a display device, which includes a color display panel, a grating panel and a backlight module. The grating panel and the color display panel are positioned at the same side of the backlight module. The color display panel comprises a plurality of first scanning lines extending along a first direction, a plurality of first data lines extending along a second direction, and a plurality of first sub-pixels electrically connected with the first scanning lines and the first data lines respectively. The raster panel comprises a plurality of second scanning lines and a plurality of second data lines. Each second scanning line includes a plurality of first portions extending in the third direction and a plurality of second portions extending in the fourth direction. The first portion and the second portion are staggered to form a wave shape. Each of the second data lines includes a plurality of third portions extending in the third direction and a plurality of fourth portions extending in the fourth direction. The third and fourth portions are staggered to form a wave shape. The first direction, the second direction, the third direction and the fourth direction are different from each other. Viewed along the first direction or the second direction, each first portion of a part of the second scan lines is located between two fourth portions of two corresponding adjacent second data lines.

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 cross-sectional view of a display device according to an embodiment of the invention.

Fig. 2A is a schematic top view of a color display panel according to an embodiment of the invention.

Fig. 2B is a schematic top view of a first sub-pixel according to an embodiment of the invention.

Fig. 3A is a schematic top view of a grating panel according to an embodiment of the invention.

Fig. 3B is a schematic top view of a second sub-pixel according to an embodiment of the invention.

Fig. 3C is a schematic cross-sectional view taken along line aa' of fig. 3B.

Fig. 4 is a schematic top view of a grating panel according to an embodiment of the invention.

Fig. 5 is a schematic top view of a grating panel according to an embodiment of the invention.

Fig. 6 is a schematic top view of a grating panel according to an embodiment of the invention.

Fig. 7 is a schematic top view of a grating panel according to an embodiment of the invention.

Fig. 8 is a schematic top view of a grating panel according to an embodiment of the invention.

Fig. 9A is a schematic top view of a second sub-pixel according to an embodiment of the invention.

Fig. 9B is a schematic cross-sectional view taken along line aa' of fig. 9A.

Fig. 10 is a schematic top view of a grating panel according to an embodiment of the invention.

Fig. 11 is a schematic top view of a grating panel according to an embodiment of the invention.

Fig. 12 is a schematic top view of a grating panel according to an embodiment of the invention.

Fig. 13 is a schematic top view of a grating panel according to an embodiment of the invention.

Fig. 14A is a schematic top view of a display device according to an embodiment of the invention.

Fig. 14B is a schematic top view of a display device.

Reference numerals

10. 20, 30 display device

100 color display panel

110 the first lower substrate

120 first pixel array

130 first liquid crystal layer

142 first black matrix

144 color filter element

150 first upper substrate

162 first lower polarizer

164 first upper polarizer

200 grating panel

210 second lower substrate

220 second pixel array

230 second liquid crystal layer

242 second black matrix

250 second upper substrate

262 second lower polarizer

264 second upper polarizer

Amplitude A1, A2

BL backlight module

CH1, CH2, CH3 channel layer

CL1, CL2, CL3 common signal line

CP1, CP2 interlaced position

Peaks CR1 and CR2

D1, D2, D3 drain

DF diffusion sheet

DL1 first data line

DL2 second data line

DR1, DR2, DR3, DR4, second orientation

E1 and E2 extending directions

G1, G2, G3 gates

GI gate insulation layer

HD1, HD2 horizontal distance

I1, I2 insulating layer

L is length

L1 first part

L2 second part

L3 third part

L4 fourth part

O1 opening

PE1 first Pixel electrode

PE2 second Pixel electrode

PE3 third Pixel electrode

P1, P1r, P1g, P1b first sub-pixel

P2 second sub-pixel

PS1 first spacer

PS2 second spacer

S1, S2, S3 source

SL1 first scanning line

SL2 second scanning line

SS1, SS2 symmetric structure

T1 first active element

T2 second active element

T3 third active element

TP1, TP2, TP3 and TP4

VA1 and VA2 wave troughs

W is width

Angle alpha 1, alpha 2, beta 1, beta 2

Detailed Description

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

Referring to fig. 1, a display device 10 includes a backlight module BL, a grating panel 200 and a color display panel 100. The raster panel 200 and the color display panel 100 are located on the same side of the backlight module BL. In the embodiment, the grating panel 200 is located between the color display panel 100 and the backlight module BL, but the invention is not limited thereto. In other embodiments, the color display panel 100 is located between the grating panel 200 and the backlight module BL.

The color display panel 100 includes a first lower substrate 110, a first pixel array 120, a first liquid crystal layer 130, a first black matrix 142, a color filter 144, and a first upper substrate 150.

The first pixel array 120, the first liquid crystal layer 130, the first black matrix 142 and the color filter element 144 are disposed between the first lower substrate 110 and the first upper substrate 150. In the embodiment, the first pixel array 120 is located on the first lower substrate 110, and the first black matrix 142 and the color filter 144 are located on the first upper substrate 150, but the invention is not limited thereto. In other embodiments, the Color filter elements 144 are disposed on the first lower substrate 110 and constitute a Color filter on array (COA) structure of Color filter elements. In other embodiments, the first Black matrix 142 is disposed on the first lower substrate 110 and constitutes a Black matrix on pixel array (BOA) structure.

The first lower polarizer 162 and the first upper polarizer 164 are respectively disposed on the first lower substrate 110 and the first upper substrate 150. In the embodiment, the first lower polarizer 162 and the first upper polarizer 164 are respectively located outside the first lower substrate 110 and the first upper substrate 150, but the invention is not limited thereto. In other embodiments, at least one of the first lower polarizer 162 and the first upper polarizer 164 is located between the first lower substrate 110 and the first upper substrate 150.

The grating panel 200 includes a second lower substrate 210, a second pixel array 220, a second liquid crystal layer 230, a second black matrix 242, and a second upper substrate 250.

The second pixel array 220, the second liquid crystal layer 230, and the second black matrix 242 are located between the second lower substrate 210 and the second upper substrate 250. In the embodiment, the second pixel array 220 is located on the second lower substrate 210, and the second black matrix 242 is located on the second upper substrate 250, but the invention is not limited thereto. In other embodiments, the second Black matrix 242 is located on the second lower substrate 210 and constitutes a Black matrix on pixel array (BOA) structure.

The second lower polarizer 262 and the second upper polarizer 264 are respectively disposed on the second lower substrate 210 and the second upper substrate 250. In the embodiment, the second lower polarizer 262 and the second upper polarizer 264 are respectively located at the outer sides of the second lower substrate 210 and the second upper substrate 250, but the invention is not limited thereto. In other embodiments, at least one of the second lower polarizer 262 and the second upper polarizer 264 is located between the second lower substrate 210 and the second upper substrate 250. In some embodiments, the first lower polarizer 162 and the second upper polarizer 264 may be integrated, in other words, the lenticular panel 200 and the color display panel 100 may share the polarizer therebetween.

In some embodiments, a diffusion layer (not shown) is further included between the color display panel 100 and the grating panel 200. The diffusion layer includes a plurality of scattering particles. After light emitted from the backlight module BL passes through the grating panel 200, the light is further scattered by the scattering particles in the diffusion layer, so that the light can be more uniformly dispersed, thereby improving the overall visual effect of the display device.

Fig. 2A is a schematic top view of a color display panel according to an embodiment of the invention. Fig. 2B is a schematic top view of a first sub-pixel according to an embodiment of the invention. For convenience of explanation, fig. 2A omits to show some of the components in fig. 2B.

Referring to fig. 2A and 2B, the first pixel array of the color display panel includes a plurality of first scan lines SL1 extending along a first direction DR1, a plurality of first data lines DL1 extending along a second direction DR2, and a plurality of first sub-pixels P1r, P1g, P1B electrically connected to the first scan lines SL1 and the first data lines DL 1. The first sub-pixel P1r is, for example, a red sub-pixel, the first sub-pixel P1g is, for example, a green sub-pixel, and the first sub-pixel P1b is, for example, a blue sub-pixel. In the present embodiment, the first pixel array of the color display panel further includes a plurality of common signal lines CL1 (omitted from fig. 2A) extending along the first direction DR1, and a plurality of second common signal lines CL2 (omitted from fig. 2A) extending along the second direction DR 2.

The first sub-pixel P1r, the first sub-pixel P1g and the first sub-pixel P1B have similar structures, and in fig. 2B, the first sub-pixel P1r is illustrated. The first sub-pixel P1r includes a first active device T1, a second active device T2, a first pixel electrode PE1 and a second pixel electrode PE 2.

The first active device T1 includes a gate G1, a channel layer CH1, a source S1, a first drain D1a, and a second drain D1 b. The gate G1 is electrically connected to the first scan line SL 1. The channel layer CH1 overlaps the gate G1, and a gate insulating layer (not shown) is sandwiched between the channel layer and the gate G1. The source S1, the first drain D1a, and the second drain D1b are electrically connected to the channel layer CH 1. The source S1 is electrically connected to the first data line DL 1. The first drain D1a is electrically connected to the first pixel electrode PE 1. The second drain D1b is electrically connected to the second active device T2.

The second active device T2 includes a gate G2, a channel CH2, a source S2 and a drain D2. The gate G2 is electrically connected to the first scan line SL 1. The channel layer CH2 overlaps the gate G2, and a gate insulating layer (not shown) is sandwiched between the channel layer and the gate G2. The source S2 and the drain D2 are electrically connected to the channel CH 2. The source S2 is electrically connected to the common signal line CL 2. The drain D2 is electrically connected to the second pixel electrode PE2 and the second drain D1 b.

In the embodiment, the first active device T1 and the second active device T2 are bottom gate thin film transistors, but the invention is not limited thereto. In other embodiments, the first active device T1 and the second active device T2 are top gate thin film transistors, double gate thin film transistors or other types of thin film transistors.

In some embodiments, the edge of the first pixel electrode PE1 and the edge of the second pixel electrode PE2 partially overlap the common signal line CL 1. In some embodiments, the first pixel electrode PE1 and the second pixel electrode PE2 have a plurality of slits (not shown) thereon, thereby dividing a single sub-pixel into multiple-domains.

In the present embodiment, the positions of the first scan line SL1 and the first data line DL1 correspond to a Dark area (Dark area) of the color display panel.

Although each sub-pixel includes two active devices and two pixel electrodes in the present embodiment, the invention is not limited thereto. In other embodiments, each sub-pixel includes an active element and a pixel electrode.

In the present embodiment, the plurality of first spacers PS1 are overlapped on the first scan line SL1, and the first spacers PS1 are used for controlling the thickness of the first liquid crystal layer (see fig. 1).

Fig. 3A is a schematic top view of a grating panel according to an embodiment of the invention. Fig. 3B is a schematic top view of a second sub-pixel according to an embodiment of the invention. For convenience of explanation, fig. 3A omits to show some of the components in fig. 3B. In addition, in order to display the relative positions of the raster panel and the color display panel, fig. 3A depicts the first sub-pixel P1 in the color display panel (e.g., the first sub-pixel P1r, the first sub-pixel P1g, and the first sub-pixel P1b in fig. 2A).

Referring to fig. 3A and 3B, the second pixel array of the raster panel includes a plurality of second scan lines SL2, a plurality of second data lines DL2 crossing the second scan lines SL2, a plurality of common signal lines CL3, and a plurality of second sub-pixels P2 electrically connected to the second scan lines SL2 and the second data lines DL 2.

Each of the second scan lines SL2 includes a plurality of first portions L1 extending in the third direction DR3 and a plurality of second portions L2 extending in the fourth direction DR 4. The first portions L1 and the second portions L2 are staggered to form a wave shape, and the extending direction E1 of the second scan line SL2 is staggered to the third direction DR3 and the fourth direction DR 4. In the present embodiment, the extending direction E1 of the second scan line SL2 is approximately parallel to the first direction DR1 (the extending direction of the first scan line SL 1).

In the present embodiment, the intersection of the first portion L1 and the second portion L2 is defined as a peak CR1 or a trough VA1 of the wave shape formed by the second scanning line SL 2. In the extending direction E1 of the second scan lines SL2, the horizontal distance HD1 between the wave front and the wave trough of each second scan line SL2 is approximately equal to 2n times the width W of each first sub-pixel P1, and n is an integer of 1 to 6. The amplitude A1 of each second scan line SL2 is approximately equal to m/2 times the length L of the first sub-pixel P1, wherein m is an integer of 1-6. Amplitude is defined as the vertical distance from the midline of the wave to the crest or trough.

The troughs VA1 (or peaks CR1) of two adjacent second scan lines SL2 have a shift distance X in the extending direction E1 of the second scan lines SL2, where the shift distance X is equal to about 2n times the width W of each first sub-pixel P1.

Each of the second data lines DL2 includes a plurality of third portions L3 extending in the third direction DR3 and a plurality of fourth portions L4 extending in the fourth direction DR 4. The third portion L3 and the fourth portion L4 are staggered to form a wave shape, and the extending direction E2 of the second data line DL2 is staggered from the third direction DR3 to the fourth direction DR 4. In the present embodiment, the extending direction E2 of the second data line DL2 is perpendicular to the extending direction E1 of the second scan line SL 2.

In the present embodiment, the intersection point of the third portion L3 and the fourth portion L4 is defined as a peak CR2 or a trough VA2 of the waveform formed by the second data line DL 2. In the extending direction E2 of the second data line DL2, the horizontal distance HD2 between the wave front CR2 and the wave trough VA2 of each second data line DL2 is approximately equal to m times the length L of each first sub-pixel P1, wherein m is an integer from 1 to 6. The horizontal distance HD2 is approximately equal to twice the amplitude A1. The amplitude a2 of each second data line DL2 is approximately equal to n times the width W of the first subpixel P1. Amplitude a2 is approximately equal to half of horizontal distance HD 1.

In the present embodiment, n is 1, and the horizontal distance HD1 is approximately equal to twice the width W. In the present embodiment, the offset distance X is approximately equal to the horizontal distance HD1, and the offset distance X is approximately equal to twice the width W.

In the present embodiment, the first direction DR1 (the extending direction of the first scan line SL1 in fig. 2A), the second direction DR2 (the extending direction of the first data line DL1 in fig. 2A), the third direction DR3 and the fourth direction DR4 are different from each other. In some embodiments, the angle between the third direction DR3 and the first direction DR1 is about 15 degrees to about 75 degrees, and the angle between the third direction DR3 and the second direction DR2 is about 15 degrees to about 75 degrees. In some embodiments, the angle between the fourth direction DR4 and the first direction DR1 is about 15 to 75 degrees, and the angle between the fourth direction DR4 and the second direction DR2 is about 105 to 165 degrees.

In the present embodiment, the plurality of first portions L1 of the partial second scan lines SL2 are respectively located between the two fourth portions L4 of the corresponding two adjacent second data lines DL2 as viewed in the first direction DR 1. For example, the first portion L1 of the partial second scan line SL2 extends from the valley VA2 of the corresponding one of the second data lines DL2 to the peak CR2 of the adjacent other one of the second data lines DL2, and the second portion L1 of the aforementioned partial second scan line SL2 extends along the fourth portion L4 of the plurality of second data lines DL 2.

In the present embodiment, the plurality of second portions L2 of the other portion of the second scan lines SL2 are respectively located between two third portions L3 of two corresponding adjacent second data lines DL2 as viewed in the first direction DR 1. For example, the second portion L2 of the another portion of the second scan line SL2 extends from the peak CR2 of the corresponding one of the second data lines DL2 to the trough VA2 of the adjacent another one of the second data lines DL2, and the first portion L1 of the another portion of the second scan line SL2 extends along the third portion L3 of the plurality of second data lines DL 2. The partial second scan lines SL2 are staggered with the other partial second scan lines SL 2.

In the present embodiment, each first portion L1 has a turn TP1, and each second portion L2 has a turn TP 2. In the present embodiment, each third portion L3 has a turn TP3, and each fourth portion L4 has a turn TP 4. The position of transition TP1 is adjacent to the position of transition TP3, and the position of transition TP2 is adjacent to the position of transition TP 4.

Fig. 3C is a schematic cross-sectional view taken along line aa' of fig. 3B.

Referring to fig. 3B and 3C, the second sub-pixel P2 includes a third active device T3 and a third pixel electrode PE 3.

The third active device T3 includes a gate G3, a channel CH3, a source S3 and a drain D3. The gate G3 is electrically connected to the second scan line SL 2. The channel layer CH3 overlaps the gate G3, and has a gate insulating layer GI sandwiched between the gate G3 and the channel layer CH 3. The source S3 and the drain D3 are electrically connected to the channel CH 3. The source S3 is electrically connected to the second data line DL 2. The insulating layer I1 and the insulating layer I2 cover the third active device T3, and the third pixel electrode PE3 is electrically connected to the drain D3 through the opening O1. The opening O1 penetrates the insulating layer I1 and the insulating layer I2.

In the embodiment, the third active device T3 is a bottom gate thin film transistor, but the invention is not limited thereto. In other embodiments, the third active element T3 is a top gate thin film transistor, a double gate thin film transistor, or other types of thin film transistors.

In some embodiments, the third pixel electrode PE3 has a plurality of slits (not shown) thereon.

The common signal line CL3 is parallel to the second scan line SL2 or parallel to the second data line DL2, and the common signal line CL3 is wavy. In the present embodiment, the extending direction of the common signal line CL3 is parallel to the extending direction of the second scan line SL2, and the common signal line CL3 and the second scan line SL2 belong to the same conductive layer. In the present embodiment, the edge of the third pixel electrode PE3 partially overlaps the second scan line SL2 and the common signal line CL 3.

In the present embodiment, the positions of the second scan line SL2, the second data line DL2, and the common signal line CL3 correspond to a Dark area (Dark area) of the raster panel.

In the present embodiment, the plurality of second spacers PS2 overlap the second scan line SL2, and the second spacers PS2 are used for controlling the thickness of the second liquid crystal layer (see fig. 1).

Based on the above, the second scan line SL2 and the second data line DL2 are wavy, so that the problem of moire (moire pattern) on the display screen can be avoided, thereby improving the display quality of the display screen.

Fig. 4 is a schematic top view of a grating panel according to an embodiment of the invention. It should be noted that the embodiment of fig. 4 follows the element numbers and partial contents of the embodiment of fig. 3A, wherein the same or similar elements are denoted by the same or similar reference numbers, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which are not repeated herein.

Referring to fig. 4, each of the second scan lines SL2 includes a plurality of first portions L1 extending along the third direction DR3 and a plurality of second portions L2 extending along the fourth direction DR 4. The first portions L1 and the second portions L2 are staggered to form a wave shape, and the extending direction E1 of the second scan line SL2 is staggered to the third direction DR3 and the fourth direction DR 4. In the present embodiment, the extending direction E1 of the second scan line SL2 is approximately perpendicular to the first direction DR1 (the extending direction of the first scan line SL 1). Although in the present embodiment, each of the first portions L1 extends along the same direction, and each of the second portions L2 extends along the same direction, the present invention is not limited thereto. In other embodiments, the extending directions of the first portions L1 are slightly different, and the extending directions of the second portions L2 are slightly different (see fig. 10 to 12).

In the present embodiment, the intersection of the first portion L1 and the second portion L2 is defined as a peak CR1 or a trough VA1 of the wave shape formed by the second scanning line SL 2. In the extending direction E1 of the second scan lines SL2, the horizontal distance HD1 between the wave front CR1 and the wave trough VA1 of each second scan line SL2 is approximately equal to m times the length L of each first sub-pixel P1. The amplitude a1 of each second scan line SL2 is approximately equal to n times the width W of the first subpixel P1. In this embodiment, m is an integer of 1 to 6, and n is an integer of 1 to 6.

Each of the second data lines DL2 includes a plurality of third portions L3 extending in the third direction DR3 and a plurality of fourth portions L4 extending in the fourth direction DR 4. The third portion L3 and the fourth portion L4 are staggered to form a wave shape, and the extending direction E2 of the second data line DL2 is staggered from the third direction DR3 to the fourth direction DR 4. In the present embodiment, the extending direction E2 of the second data line DL2 is perpendicular to the extending direction E1 of the second scan line SL 2. Although in the present embodiment, each of the third portions L3 extends along the same direction, and each of the fourth portions L4 extends along the same direction, the present invention is not limited thereto. In other embodiments, the extending directions of the different third portions L3 are slightly different, and the extending directions of the different fourth portions L4 are slightly different (see fig. 10 to 12).

In the present embodiment, the intersection point of the third portion L3 and the fourth portion L4 is defined as a peak CR2 or a trough VA2 of the waveform formed by the second data line DL 2. In the extending direction E2 of the second data line DL2, the horizontal distance HD2 between the wave front CR2 and the wave trough VA2 of each second data line DL2 is approximately equal to 2n times the width W of each first sub-pixel P1. The horizontal distance HD2 is approximately equal to twice the amplitude A1. The amplitude A2 of each second data line DL2 is approximately equal to m/2 times the length L of the first subpixel P1. Amplitude a2 is approximately equal to half of horizontal distance HD 1.

The troughs VA2 (or peaks CR2) of two adjacent second data lines DL2 have a shift distance X in the extending direction E2 of the second data line DL2, and the shift distance X is equal to about 2n times the width W of each first sub-pixel P1.

In the present embodiment, n is 1, and the horizontal distance HD2 is approximately equal to twice the width W. In the present embodiment, the offset distance X is approximately equal to the horizontal distance HD2, and the offset distance X is approximately equal to twice the width W.

In the present embodiment, the first direction DR1 (the extending direction of the first scan line SL1 in fig. 2A), the second direction DR2 (the extending direction of the first data line DL1 in fig. 2A), the third direction DR3 and the fourth direction DR4 are different from each other. In some embodiments, the angle between the third direction DR3 and the first direction DR1 is about 15 to 75 degrees, and the angle between the third direction DR3 and the second direction DR2 is about 105 to 165 degrees. In some embodiments, the angle between the fourth direction DR4 and the first direction DR1 is about 15 degrees to about 75 degrees, and the angle between the fourth direction DR4 and the second direction DR2 is about 15 degrees to about 75 degrees.

Fig. 5 is a schematic top view of a grating panel according to an embodiment of the invention. It should be noted that the embodiment of fig. 5 follows the element numbers and partial contents of the embodiment of fig. 3A, wherein the same or similar elements are denoted by the same or similar reference numbers, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which are not repeated herein.

Referring to fig. 5, in the present embodiment, in the extending direction E1 of the second scan line SL2, the horizontal distance HD1 between the wave front CR1 and the wave trough VA1 of each second scan line SL2 is approximately equal to 4 times the width W of each first sub-pixel P1. The amplitude a1 of each second scan line SL2 is approximately equal to 1 times the length L of the first subpixel P1.

The troughs VA1 (or peaks CR1) of two adjacent second scan lines SL2 have a displacement distance X in the extending direction E1 of the second scan lines SL2, and the displacement distance X is equal to about 4 times the width W of each first sub-pixel P1.

In the embodiment, in the extending direction E2 of the second data line DL2, the horizontal distance HD2 between the wave front CR2 and the wave trough VA2 of each second data line DL2 is approximately equal to 2 times the length L of each first sub-pixel P1. The horizontal distance HD2 is approximately equal to twice the amplitude A1. The amplitude a2 of each second data line DL2 is approximately equal to 2 times the width W of the first subpixel P1. Amplitude a2 is approximately equal to half of horizontal distance HD 1.

Fig. 6 is a schematic top view of a grating panel according to an embodiment of the invention. It should be noted that the embodiment of fig. 6 follows the element numbers and partial contents of the embodiment of fig. 3A, wherein the same or similar elements are denoted by the same or similar reference numbers, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which are not repeated herein.

Referring to fig. 6, in the present embodiment, in the extending direction E1 of the second scan line SL2, the horizontal distance HD1 between the wave front CR1 and the wave trough VA1 of each second scan line SL2 is approximately equal to 6 times the width W of each first sub-pixel P1. The amplitude A1 of each second scan line SL2 is approximately equal to 3/2 times the length L of the first subpixel P1.

The troughs VA1 (or peaks CR1) of two adjacent second scan lines SL2 have a shift distance X in the extending direction E1 of the second scan lines SL2, where the shift distance X is equal to about 6 times the width W of each first sub-pixel P1.

In the embodiment, in the extending direction E2 of the second data line DL2, the horizontal distance HD2 between the wave front CR2 and the wave trough VA2 of each second data line DL2 is equal to about 3 times the length L of each first sub-pixel P1. The horizontal distance HD2 is approximately equal to 2 times the amplitude A1. The amplitude a2 of each second data line DL2 is approximately equal to 3 times the width W of the first subpixel P1. Amplitude a2 is approximately equal to half of horizontal distance HD 1.

Fig. 7 is a schematic top view of a grating panel according to an embodiment of the invention. It should be noted that the embodiment of fig. 7 follows the element numbers and partial contents of the embodiment of fig. 3A, wherein the same or similar elements are denoted by the same or similar reference numbers, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which are not repeated herein.

Referring to fig. 7, in the present embodiment, the width W of the first sub-pixel P1 is parallel to the second direction DR2 (the extending direction of the first data line DL 1), and the length L of the first sub-pixel P1 is parallel to the first direction DR1 (the extending direction of the first scan line SL 1). In the present embodiment, the color display panel 100 is a Tri-Gate (Tri-Gate) architecture driven display panel. In this embodiment. The subpixels of different colors (red, green, and blue subpixels) are arranged in the second direction DR2, and the subpixels of the same color are arranged in the first direction DR 1.

The extending direction E1 of the second scan line SL2 is approximately perpendicular to the first direction DR 1. The extending direction E2 of the second data line DL2 is approximately parallel to the first direction DR 1.

Fig. 8 is a schematic top view of a grating panel according to an embodiment of the invention. It should be noted that the embodiment of fig. 8 follows the element numbers and partial contents of the embodiment of fig. 4, wherein the same or similar elements are denoted by the same or similar reference numbers, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which are not repeated herein.

Referring to fig. 8, in the present embodiment, the width W of the first sub-pixel P1 is parallel to the second direction DR2 (the extending direction of the first data line DL 1), and the length L of the first sub-pixel P1 is parallel to the first direction DR1 (the extending direction of the first scan line SL 1). In the present embodiment, the color display panel 100 is a Tri-Gate (Tri-Gate) architecture driven display panel. In this embodiment. The subpixels of different colors (red, green, and blue subpixels) are arranged in the second direction DR2, and the subpixels of the same color are arranged in the first direction DR 1.

The extending direction E1 of the second scan line SL2 is approximately parallel to the first direction DR 1. The extending direction E2 of the second data line DL2 is approximately perpendicular to the first direction DR 1.

Fig. 9A is a schematic top view of a second sub-pixel according to an embodiment of the invention. Fig. 9B is a schematic cross-sectional view taken along line aa' of fig. 9A. It should be noted that the embodiment of fig. 9A and 9B follows the element numbers and partial contents of the embodiment of fig. 3B and 3C, wherein the same or similar elements are denoted by the same or similar reference numbers, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which are not repeated herein.

Referring to fig. 9A and 9B, in the present embodiment, the extending direction of the common signal line CL3 is parallel to the extending direction of the second data line DL2, and the common signal line CL3 and the second data line DL2 belong to the same conductive layer.

Fig. 10 is a schematic top view of a grating panel according to an embodiment of the invention. It should be noted that the embodiment of fig. 10 follows the element numbers and partial contents of the embodiment of fig. 3A, wherein the same or similar elements are denoted by the same or similar reference numbers, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which are not repeated herein.

Referring to fig. 10, in the present embodiment, each first portion L1 has a turn TP1, and each second portion L2 has a turn TP 2.

On the same second scan line SL2, the turn TP1 of the portion of the first portion L1 has an angle α 1, and the turn TP1 of the portion of the first portion L1 has an angle α 2. On the same second scan line SL2, the first portion L1 of the transition TP1 having the angle α 1 and the first portion L1 of the transition TP1 having the angle α 2 are staggered. On the same second scan line SL2, the turn TP2 of the portion of the second portion L2 has an angle α 1, and the turn TP2 of the portion of the second portion L2 has an angle α 2. On the same second scan line SL2, the second portion L2 of the transition TP2 having the angle α 1 and the second portion L2 of the transition TP2 having the angle α 2 are staggered.

In the present embodiment, the second scan lines SL2 form a symmetrical structure SS with two adjacent scan lines as a group, and the symmetrical structures SS are offset from each other.

In the present embodiment, the first portion L1 and the second portion L2 of the second scan line SL2 include different lengths, and the staggered positions of a part of the second scan line SL2 and two adjacent second data lines DL2 are not aligned in the extending direction E2 of the second scan line SL 2. For example, the staggered position CP1 in fig. 10 is not aligned with the staggered position CP2 in the extending direction E2. In some embodiments, two adjacent third active elements (omitted from fig. 10) on the same second scan line SL2 are not aligned in the extending direction E2. The third active element is located at the staggered position CP1 and the staggered position CP2, for example.

In the present embodiment, the raster panel has the second sub-pixels of different shapes.

Based on the above, the problem of bright stripes of the grating panel can be improved.

Fig. 11 is a schematic top view of a grating panel according to an embodiment of the invention. It should be noted that the embodiment of fig. 11 follows the element numbers and partial contents of the embodiment of fig. 10, wherein the same or similar elements are denoted by the same or similar reference numbers, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which are not repeated herein.

Referring to fig. 11, on the same second scan line SL2, each first portion L1 has a turn TP1, and each second portion has a turn TP 2. On the same second scan line SL2, the angle of the turn TP1 is approximately equal to the angle of the turn TP 2.

In the present embodiment, a portion of the transition TP1 of the second scan line SL2 has an angle α 1 with the transition TP2, and another portion of the transition TP1 of the second scan line SL2 has an angle α 2 with the transition TP 2. In the present embodiment, two second scan lines SL2 corresponding to the angle α 1 are mirror-symmetrical to each other and constitute a symmetrical structure SS 1. The two second scan lines SL2 corresponding to the angle α 2 are mirror images of each other and constitute a symmetrical structure SS 2. Symmetrical structure SS1 alternates with symmetrical structure SS 2.

Fig. 12 is a schematic top view of a grating panel according to an embodiment of the invention. It should be noted that the embodiment of fig. 12 follows the element numbers and partial contents of the embodiment of fig. 10, wherein the same or similar elements are denoted by the same or similar reference numbers, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which are not repeated herein.

Referring to fig. 12, in the present embodiment, each first portion L1 has a turn TP1, and each second portion has a turn TP 2.

On the same second scan line SL2, the partial transition TP1 has an angle α 1, and the partial transition TP1 has an angle α 2. On the same second scan line SL2, the turn TP1 with the angle α 1 and the turn TP1 with the angle α 2 are staggered. On the same second scan line SL2, the partial transition TP2 has an angle α 1, and the partial transition TP2 has an angle α 2. On the same second scan line SL2, the turn TP2 with the angle α 1 and the turn TP2 with the angle α 2 are staggered.

In the present embodiment, two adjacent second scan lines SL2 are not mirror-symmetrical.

Fig. 13 is a schematic top view of a grating panel according to an embodiment of the invention. It should be noted that the embodiment of fig. 13 follows the element numbers and partial contents of the embodiment of fig. 12, wherein the same or similar elements are denoted by the same or similar reference numbers, and the description of the same technical contents is omitted. For the description of the omitted parts, reference may be made to the foregoing embodiments, which are not repeated herein.

Referring to fig. 13, in the present embodiment, the first portion L1, the second portion L2, the third portion L3 and the fourth portion L4 do not have turns. In other words, in the present embodiment, the plurality of second scan lines SL2 and the plurality of second data lines DL2 define a plurality of positive diamonds.

Fig. 14A is a schematic top view of a display device according to an embodiment of the invention. Fig. 14B is a schematic top view of a display device.

Referring to fig. 14A, in the display device 20 of fig. 14A, the structure of the color display panel is as shown in fig. 2A, fig. 2B and the related paragraphs, and the structure of the grating panel is as shown in fig. 3A, fig. 3B, fig. 3C and the related paragraphs. Fig. 14A is a schematic view showing the lighting of the green sub-pixels of the display device 20, and it can be seen from fig. 14A that no significant moire is generated in the screen displayed by the display device 20 when the screen is overlapped with the diffusion sheet DF or not overlapped with the diffusion sheet DF. Therefore, the lenticular panel of the present embodiment only needs to be matched with a diffuser with a low haze value (haze value) or does not need to be additionally provided with a diffuser.

Referring to fig. 14B, in the display device 30 of fig. 14B, the structure of the color display panel is as described in fig. 2A, fig. 2B and the related paragraphs, and the structure of the grating panel is the same as the color display panel, except that the grating panel does not have a color filter element. In the display device in fig. 14B, the second scan lines and the second data lines of the raster panel are not waved. Fig. 14B is a schematic diagram showing the lighting of the green sub-pixels of the display device 30, and it can be seen from fig. 14B that the screen displayed by the display device 30 has moire patterns both when it is overlapped with the diffusion sheet DF and when it is not overlapped with the diffusion sheet DF.

In summary, the second scan lines and the second data lines of the grating panel are wavy, so that the moire problem of the display image can be avoided, thereby improving the display quality of the display image.

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 backlight module;

a color display panel, comprising:

a plurality of first scanning lines extending along a first direction;

a plurality of first data lines extending along a second direction; and

a plurality of first sub-pixels electrically connected to the first scan lines and the first data lines; and

a grating panel, the grating panel and the color display panel are located at the same side of the backlight module, and the grating panel and the color display panel comprise:

a plurality of second scan lines;

a plurality of second data lines crossing the second scan lines;

a plurality of common signal lines, the extending direction of the common signal lines being parallel to the extending direction of the second scan lines or parallel to the extending direction of the second data lines, wherein the second scan lines, the second data lines and the common signal lines are waved; and

and the second sub-pixels are electrically connected with the second scanning lines and the second data lines.

2. The display device according to claim 1, wherein the common signal lines are parallel to the second scan lines, and the common signal lines and the second scan lines are of the same conductive layer.

3. The display device according to claim 1, wherein the common signal lines are parallel to the second data lines, and the common signal lines and the second data lines belong to a same conductive layer.

4. The display device of claim 1, wherein the amplitude of each of the second scan lines is approximately equal to m/2 times the length of each of the first sub-pixels, wherein m is an integer of 1 to 6.

5. The display device according to claim 1, wherein a crossing position of one of the second scan lines and two adjacent second data lines is not aligned in an extending direction of the second scan lines.

6. The display device according to claim 1, wherein a horizontal distance between a peak and a valley of each of the second scan lines in an extending direction of the second scan lines is equal to about 2n times a width of each of the first sub-pixels, wherein n is an integer of 1 to 6.

7. The display device of claim 1, wherein a horizontal distance between a peak and a trough of each of the second data lines in an extending direction of the second data lines is approximately equal to 2n times a width of each of the first sub-pixels, wherein n is an integer of 1 to 6.

8. The display device according to claim 1, wherein the valleys of two adjacent second scan lines have a shift distance X in the extending direction of the second scan lines, the shift distance X is equal to about 2n times the width of each first sub-pixel, and n is an integer of 1-6.

9. The display device according to claim 1, wherein the valleys of two adjacent second data lines have a shifting distance X in the extending direction of the second data lines, the shifting distance X is equal to about 2n times the width of each first sub-pixel, wherein n is an integer of 1-6.

10. A display device, comprising:

a color display panel, comprising:

a plurality of first scanning lines extending along a first direction;

a plurality of first data lines extending along a second direction; and

a plurality of first sub-pixels electrically connected to the first scan lines and the first data lines, respectively;

a grating panel, comprising:

a plurality of second scanning lines, each of which comprises a plurality of first portions extending along a third direction and a plurality of second portions extending along a fourth direction, wherein the first portions and the second portions are staggered to form a wave shape; and

a plurality of second data lines, each of the second data lines including a plurality of third portions extending along the third direction and a plurality of fourth portions extending along the fourth direction, the third portions and the fourth portions being staggered to form a wave shape, the first direction, the second direction, the third direction and the fourth direction being different from each other, wherein, when viewed along the first direction or the second direction, each of the first portions of a part of the second scan lines is located between two of the fourth portions of two corresponding adjacent second data lines; and

the grating panel and the color display panel are positioned at the same side of the backlight module.

11. The display device according to claim 10, wherein each of the first portions has a turn, and each of the second portions has a turn.