201037393 六、發明說明： 【發明所屬之技術領域】 本發明係有關一種觸控式顯示裝置，特別是關於一種具有感光薄 膜電晶體之光學式觸控面板結構。 【先前技術】 近年來，觸控面板的應用廣泛，且種類亦很多，其中以直接將觸 控功能内建整合至顯示面板内的内嵌式觸控面板係最受矚目。 目前，大部分之内嵌式觸控面板都為光學式感測，其係藉由内嵌 在顯不面板内的光感測器（Phot〇 sensor)去偵測光電流的改變來決 定觸控位置事件。該等光感測器可以為薄膜電晶體（TFT)感測器4〇， 如第1圖所示，係由一切換電晶體（sw TFT) 42和一感光電晶體 (Photo TFT)所組成)44 ;當切換電晶體42開啟時，感光電晶體44 產生的光電流訊號會經過讀取線46傳出去，當照光強度有變化時，光 電流大小也就變得不同，所以可用來判讀觸控事件並找出觸控位置。 在上述光學式觸控面板中，因感光電晶體和作為控制元件之切換 電晶體以及璜取線係設置於薄膜電晶體基板48上，如第2圖所示，而 對應感光電晶體44及切換電晶體42之位置，會在面板之彩色濾光片 基板上對應彩色滤光片52之紅綠藍三色中之藍色區塊上設有黑色 矩陣（Black Matrix) 54，以對應遮住感光電晶體44及切換電晶體42 之所在位置，此乃因藍色區塊的開口率對亮度的影響是三色中最為輕 微者，故將對應元件與電路之黑色矩陣配置在藍色區塊中，可以避免 犧牲掉過多的面板亮度。然而，此種方式雖然可以避免犧牲過多的面 板亮度，但卻會因為藍色區域開口率過低而造成嚴重顏色偏差，在一 些南解析度的面板上尤其嚴重。 有鑑於此，本發明遂提出一種光學式觸控面板結構，來解決此顏 色偏差的問題。 ' " 【發明内容】 3 201037393 本發明之目的係在提供一種光學式觸控面板結構，其係利用調整 紅、綠、藍三個區塊之開口率，使亮度和顏色偏差達到一個平衡點， 使顏色偏差和亮度損失降到最小。 為達到上述目的，本發明之光學式觸控面板結構係包括有一薄膜 電晶艘基板’其上設有複數感光元件；並有一彩色遽光片基板，於彩 色濾光片基板上設有複數畫素單元，每一畫素單元上且對應感光元件 之位置，在不影響光感測效果之下分別設有黑色矩陣，且每一畫素單 元包含有紅色區塊、綠色區塊及藍色區塊，其中綠色區塊之開口率係 為最大者。 其中，上述之感光元件係同時設置於紅色區塊、綠色區塊及藍色 區塊上’綠色區塊之開口率大於紅色區塊，且紅色區塊則大於或等於 該藍色區塊；或是’感光元件係設置於紅色區塊及藍色區塊上，綠色 區塊之開口率大於紅色區塊及藍色區塊，且紅色區塊敍於或小於藍 色區塊；或是感光元件僅設置於紅色區塊上，綠色區塊之開σ率大於 藍色區塊’且藍色區塊則大於紅色區塊。 底下藉由具體實猶他合__辆加·，當更容純解本 發明之目的、技術内容、特點及其所達成之功效。 【實施方式】 本發明係姻配置感光元件於紅色區塊、綠色區塊及藍色區塊所 佔的開口率大小的不同，來調整紅色區塊、綠色區塊及藍色區塊之開 口率’使亮度和顏色偏差办卜個平衡點，以解決習知易發生顏色偏 差的問題。 ’ :種光學式敏面板結構係包括有—_電晶縣板及―彩㈣ 板^及此二基械婦雜“。賴電晶體紐上設有複 數感光7C件，此彩色觀#基板係具有複數晝素單元，於每一畫素 7L上並對應感光元件之位置分別設有黑色矩陣，且每一畫素單元包含 有紅色區塊、綠色區塊及藍色區塊，其中綠色區塊之開口率係為最大 201037393 者。本發明係著重於薄膜電晶體基板及彩色濾光片基板，其餘面板的 相關基本元件則於此不再詳細介紹。 請先參考第3圖所示之面板等效電路示意圖，在薄膜電晶鱧基板 上包含了驅動液晶的畫素結構以及用於感測訊號的感光元件2〇 ,每一 感光元件20係包含有一感光電晶體202、一切換電晶體2〇4及一讀取 線206 ’感光電晶體202及切換電晶體204係為薄膜電晶體（tft)， 使得切換電晶體204可受一閘極線30之控制，使感光電晶體2〇2輸 出光電流訊號至讀取線206，並利用一讀取單元32，連接讀取線206201037393 VI. Description of the Invention: [Technical Field] The present invention relates to a touch display device, and more particularly to an optical touch panel structure having a photosensitive film transistor. [Prior Art] In recent years, touch panels have been widely used and have many types, and the in-cell touch panel in which the touch control function is directly integrated into the display panel has been attracting attention. At present, most of the in-cell touch panels are optically sensed, which is determined by detecting a change in photocurrent by a photo sensor (Phot〇 sensor) embedded in the display panel. Location event. The photosensors may be thin film transistor (TFT) sensors 4, as shown in FIG. 1, consisting of a switching transistor (sw TFT) 42 and a photo transistor (Photo TFT). When the switching transistor 42 is turned on, the photocurrent signal generated by the photo transistor 44 is transmitted through the reading line 46. When the intensity of the illumination changes, the photocurrent becomes different, so it can be used to interpret the touch. Events and find out where to touch. In the above optical touch panel, the photosensitive transistor and the switching transistor as the control element and the pick-up line are disposed on the thin film transistor substrate 48, as shown in FIG. 2, corresponding to the photosensitive transistor 44 and switching The position of the transistor 42 is provided with a black matrix (54) on the blue color block of the red, green and blue colors corresponding to the color filter 52 on the color filter substrate of the panel to correspond to the sense of concealment. The position of the photoelectric crystal 44 and the switching transistor 42 is because the influence of the aperture ratio of the blue block on the brightness is the slightest among the three colors, so the black matrix of the corresponding component and the circuit is arranged in the blue block. Can avoid sacrificing too much panel brightness. However, although this method can avoid sacrificing excessive panel brightness, it will cause severe color deviation due to the low aperture ratio of the blue region, which is particularly serious on some south resolution panels. In view of this, the present invention proposes an optical touch panel structure to solve the problem of color deviation. [Abstract] 3 201037393 The object of the present invention is to provide an optical touch panel structure, which utilizes the aperture ratios of three blocks of red, green and blue to achieve a balance between brightness and color deviation. , to minimize color deviation and brightness loss. In order to achieve the above object, the optical touch panel structure of the present invention comprises a thin film electro-crystal substrate on which a plurality of photosensitive elements are disposed, and a color light-emitting substrate, and a plurality of paintings are disposed on the color filter substrate. The prime unit, each pixel unit and corresponding to the position of the photosensitive element, respectively, is provided with a black matrix without affecting the light sensing effect, and each pixel unit includes a red block, a green block and a blue area. Block, where the aperture ratio of the green block is the largest. Wherein, the photosensitive element is disposed on the red block, the green block and the blue block at the same time, the opening ratio of the green block is greater than the red block, and the red block is greater than or equal to the blue block; or The photosensitive element is disposed on the red block and the blue block, the aperture ratio of the green block is larger than the red block and the blue block, and the red block is smaller or smaller than the blue block; or the photosensitive element Set only on the red block, the green block has an open σ rate greater than the blue block' and the blue block is larger than the red block. The purpose of the invention, the technical content, the characteristics and the effects achieved by the invention are explained by the specific real Utah. [Embodiment] In the present invention, the aperture ratio of the red, green, and blue blocks of the photosensitive element is adjusted to adjust the aperture ratio of the red, green, and blue blocks. 'To make the brightness and color deviation a balance point to solve the problem of easy color deviation. ' : The optical type of sensitive panel structure includes - _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ The plurality of pixel units are respectively provided with a black matrix on each pixel 7L and corresponding to the position of the photosensitive element, and each pixel unit includes a red block, a green block and a blue block, wherein the green block The aperture ratio is the maximum of 201037393. The present invention focuses on the thin film transistor substrate and the color filter substrate, and the related basic components of the remaining panels are not described in detail herein. Please refer to the panel shown in FIG. The schematic diagram of the effect circuit includes a pixel structure for driving the liquid crystal and a photosensitive element 2 for sensing signals on the thin film transistor substrate. Each of the photosensitive elements 20 includes a photosensitive transistor 202 and a switching transistor 2 4 and a read line 206 'the photosensitive transistor 202 and the switching transistor 204 are thin film transistors (tft), so that the switching transistor 204 can be controlled by a gate line 30, so that the photosensitive transistor 2 〇 2 outputs light. Current signal to read line 2 06, and using a reading unit 32, connected to the reading line 206
並接收此光電流訊號，並據此偵測觸控事件並找出觸控位置；而位於 彩色濾光片基板’在相對應於感光元件2〇及畫素結構的位置上的畫素 單元10，其包含有紅色區塊(R)1〇2 '綠色區塊(G>1〇4及藍色區塊 (B)1〇6。 其中，感光元件20係可配置於紅色區塊1〇2、綠色區塊1〇4或藍 色區塊106上，且紅色區塊1〇2、綠色區塊1〇4或藍色區塊1〇6之開 口率大小雜據設置位置不时而具有不同之條件。底下係根據不同 之條件配合對應之晝素單元圖式來予以詳細說明： 當感光元件1〇係同時設置於紅色區塊102、綠色區塊1〇4及藍色 區塊106上時’綠色區塊104之開口率大於紅色區塊1〇2，且紅色區 塊102之開口率係大於或等於藍色區塊1〇6之開口率。此條件可分為 二種範例，首先，請先參閱第4A圖所*，感光元件1〇做置於紅色 區塊102、綠色區塊104及藍色區塊1〇6上，此時紅色區塊1〇2、 綠色區境1G4及藍色區塊1()6之垂直方向的高度⑻相同水平方 向之寬度則為綠色區塊1()4 (寬度為d2)大於紅色區塊1〇2 (寬度為 2 ’且紅色轉1G2 (寬度為⑴）係大於或等於藍色區塊106 (寬 T d2>_3 ;當然，紅色區塊102、綠色區塊1〇4及 _色區塊可以設置於最外側，只要保持寬度d2>_d3即^。另 一種範例則請參閱第4C圖所示，感光元件1〇係設置於紅色區塊他、 5 201037393 綠色區塊104及藍色區塊106上，此時，紅色區塊1〇2、綠色區塊104 及藍色區塊106之水平方向的寬度⑷姻，水平方向之高度則為綠 色區塊104 (尚度為h2)大於紅色區塊1〇2 (高度為h1)，且紅色區 塊102 (高度為hi)係大於或等於藍色區塊1〇6 (高度為⑻，亦即 h2>h1gh3。 當感光元件20係設置於紅色區塊1〇2及藍色區塊1〇6之二個區 塊上’如第5 ®卿’同時考量色阻成份與縣亮度等因素只要綠 色區塊104之開σ率係為最大者即可，紅色區塊1()2之開口率可以大 於或小於藍色區塊106 ’圖中所示為—般情況，在水平方向的宽度⑹ j同時’通常為紅色區塊1〇2大於藍色區塊1〇6，亦即h2>h1>h3 ; 右在可接受的面板規格翻内’藍色區塊1〇6大於紅色區塊1〇2亦 可，即 h2>h3>h1。 當感光元件20僅設置於紅色區塊1〇2上，如第6圖所示，綠色 區塊104之開口率大於藍色區塊1〇6，藍色區塊1〇6之開口率係大於 紅色區塊102;換言之，以水平方向寬度而言，綠色區塊1〇4之寬度 d2係大於藍色區塊伽之寬度d3，且藍色色區塊川6之寬度泊）係 大於紅色區塊102之寬度d1)，亦即d2>d3>d1。 ’、 再者’在選擇上述其中一條件之後，可先量測原面板之色座標（未 _^開口料之色座標）’並估計感光元件所佔之面積大小，經過色座 心周整之模擬4算’以計算紅色區塊、綠色區塊及藍色區塊等三區塊 各自之開口率，以求得顏色偏差與亮度。詳細計算流程如下所示： 先量測原面板的色座標，如下列表一所示： 表一 顏色 X Y z座標 R x1 y1 π Z1=1-x1-y1 -——?_ B —^_ _y?_ j Z2=1-x2-y2 x3 y3 Z3=1-x3-y3 白色 ___x0 y〇 ZQ=1-x〇-y〇 201037393 —利用表一的色座標計算彩色陣列（colormatrix)，如下列方程式所 示： aiyi+a2y2+a3y3=lAnd receiving the photocurrent signal, and detecting the touch event and finding the touch position, and the pixel unit 10 located at the position corresponding to the photosensitive element 2 and the pixel structure of the color filter substrate It includes a red block (R) 1 〇 2 'green block (G > 1 〇 4 and a blue block (B) 1 〇 6. Among them, the photosensitive element 20 can be arranged in the red block 1 〇 2 On the green block 1〇4 or the blue block 106, and the aperture ratio of the red block 1〇2, the green block 1〇4 or the blue block 1〇6 is different from time to time. The condition is as follows: According to different conditions, the corresponding element unit diagram is used for detailed description: When the photosensitive element 1 is simultaneously disposed on the red block 102, the green block 1〇4 and the blue block 106' The aperture ratio of the green block 104 is greater than that of the red block 1〇2, and the aperture ratio of the red block 102 is greater than or equal to the aperture ratio of the blue block 1〇6. This condition can be divided into two examples. First, please Referring first to Figure 4A, the photosensitive element 1 is placed in the red block 102, the green block 104, and the blue block 1〇6, at this time, red The height in the vertical direction of block 1〇2, green area 1G4 and blue block 1()6 (8) is the same in the horizontal direction. Green block 1()4 (width is d2) is larger than red block 1〇2 (width is 2 ' and red to 1G2 (width is (1)) is greater than or equal to blue block 106 (width T d2 > _3 ; of course, red block 102, green block 1 〇 4 and _ color block can be set On the outermost side, as long as the width d2 > _d3 is ^. For another example, please refer to Fig. 4C, the photosensitive element 1 is disposed on the red block, 5 201037393 green block 104 and blue block 106. At this time, the width of the red block 1〇2, the green block 104, and the blue block 106 in the horizontal direction is (4), and the height in the horizontal direction is the green block 104 (still h2) is larger than the red block 1 〇2 (height is h1), and red block 102 (height hi) is greater than or equal to blue block 1〇6 (height is (8), ie h2>h1gh3. When photosensitive element 20 is set in red block 1〇2 and the two blocks of the blue block 1〇6, such as the 5th + qing, consider the color resistance component and the county brightness as long as the green block 104 The sigma ratio is the largest, and the aperture ratio of the red block 1()2 may be larger or smaller than the blue block 106' as shown in the figure. The width in the horizontal direction (6) j is 'usually red'. Block 1〇2 is larger than blue block 1〇6, that is, h2>h1>h3; right is within the acceptable panel specification. 'Blue block 1〇6 is larger than red block 1〇2, ie H2>h3>h1. When the photosensitive element 20 is disposed only on the red block 1〇2, as shown in Fig. 6, the aperture ratio of the green block 104 is larger than the blue block 1〇6, and the blue block 1〇 The aperture ratio of 6 is greater than the red block 102; in other words, in the horizontal direction width, the width d2 of the green block 1〇4 is greater than the width d3 of the blue block gamma, and the width of the blue color block is 6 The system is larger than the width d1) of the red block 102, that is, d2 > d3 > d1. ', and then' after selecting one of the above conditions, you can first measure the color coordinates of the original panel (not the color coordinates of the opening material) and estimate the size of the photosensitive element, through the center of the color seat The simulation 4 counts 'to calculate the aperture ratio of each of the three blocks, such as a red block, a green block, and a blue block, to obtain color deviation and brightness. The detailed calculation process is as follows: First measure the color coordinates of the original panel, as shown in the following list: Table 1 color XY z coordinate R x1 y1 π Z1=1-x1-y1 -——?_ B —^_ _y? _ j Z2=1-x2-y2 x3 y3 Z3=1-x3-y3 white ___x0 y〇ZQ=1-x〇-y〇201037393 — Calculate the color array (colormatrix) using the color coordinates of Table 1, such as the following equation Shown: aiyi+a2y2+a3y3=l
a^+a2z2+a3z3=z〇/yQ χι x2 x3 ax xJy〇 少 1少2少3 °2 = 1 -zi ^3. -aK .z^y0. 其中，X1為紅色區塊X轴座標，y1為紅色區塊y軸座標；χ2為a^+a2z2+a3z3=z〇/yQ χι x2 x3 ax xJy〇1 less 2 less 3 °2 = 1 -zi ^3. -aK .z^y0. Where X1 is the X-axis coordinate of the red block, Y1 is the red block y-axis coordinate; χ2 is
〇 綠色區塊X軸座標，y2為綠色區塊y軸座標;χ3為藍色區塊乂軸座標， y3為藍色區塊y軸座標；以及a1、a2、a3為彩色陣列的係數。 再利用上述之彩色陣列，計算各區塊開口率對顏色偏差及亮度影 響’如下列方程式所示： ^ι·^ι a2x2 α3χ3 R 'x' a\y\ ^2y2 «3^3 G = Y β\Ζ\ a2Z2 B zX Green block X-axis coordinates, y2 is the green block y-axis coordinate; χ3 is the blue block 乂-axis coordinate, y3 is the blue block y-axis coordinate; and a1, a2, a3 are the coefficients of the color array. Using the color array described above, calculate the effect of the aperture ratio of each block on the color deviation and brightness as shown in the following equation: ^ι·^ι a2x2 α3χ3 R 'x' a\y\ ^2y2 «3^3 G = Y β\Ζ\ a2Z2 B z
Wx = —±_Wx = —±_
X + Y + ZX + Y + Z
Wy =-1Wy = -1
X + Y + Z 其中’上述方程式中之R、G、B分別代表紅色區塊、綠色區塊、 藍色區塊的開口率。取得R、G、B後，即可求得X、丫、z。 藉由上述方程式，即可獲得各開口率所造成顏色偏^Wx、△ Wy及AW ;其中， △Ί-Μ；ί0 . Δ%= w ;及 δ^=-^/δ>ϊ7+δμ7 因此，利用調整R、G、Β開口率可以改變色座標χ、γ、ζ，以 決疋色偏與亮度。 就目前現有的規範而言，須滿足Δννχ<：〇 〇3, AWy<〇 〇3以及 △ W<_2。_模擬計算的結果來調整各顏色區塊之開口率，使顏 色偏差達到聽。計算完成後，再概光元件與電路配置在紅色區域、 綠色區域或藍色區域，以改變各祕區塊之開口率來達耻述模擬計 7 201037393 算的結果。賴，改變各顏色區塊之開口率之方式可以糾配置感光 兀件於各顏色_所佔之面獻小來_，錢改變各顏色區塊的水 平寬度亦可達成，如前述各實施例所示。 接績’以實際產品來實際模擬之，並以下列各步驟說明 。在此係 以本公司HSD8.9”之產品為例·· 步驟1 :先設計感光元件。 步驟2:估計各感光元件所佔面積，其中，感光電晶體約佔整個 畫素單疋面積11%，線及切換電晶體合_整财素單元面積 11%。 步驟3 :量測原始色座標wx=〇.297，Wy=〇.323X + Y + Z where R, G, and B in the above equation represent the aperture ratios of the red block, the green block, and the blue block, respectively. After obtaining R, G, and B, you can find X, 丫, and z. By the above equation, the color deviations Wx, ΔWy, and AW caused by the aperture ratios can be obtained; wherein ΔΊ-Μ; ί0 . Δ% = w ; and δ^=-^/δ> ϊ7+δμ7 By adjusting the aperture ratios of R, G, and Β, the color coordinates, γ, and ζ can be changed to determine the color shift and brightness. As far as the current specifications are concerned, Δννχ<:〇 〇3, AWy<〇 〇3 and ΔW<_2 must be satisfied. _ Simulate the results of the calculation to adjust the aperture ratio of each color block so that the color deviation reaches the listening. After the calculation is completed, the re-lighting elements and circuits are arranged in the red area, the green area or the blue area to change the aperture ratio of each secret block to achieve the result of the simulation. Lay, changing the aperture ratio of each color block can correct the configuration of the photosensitive element in each color _ occupying the surface _, money can also be achieved by changing the horizontal width of each color block, as in the foregoing embodiments Show. The performance is actually simulated with the actual product and explained in the following steps. In this case, we take the product of our company HSD8.9" as an example. Step 1: Design the photosensitive element first. Step 2: Estimate the area occupied by each photosensitive element, wherein the photosensitive transistor accounts for about 11% of the entire pixel area. , line and switch transistor _ whole financial unit area 11%. Step 3: Measure the original color coordinates wx = 〇.297, Wy = 〇.323
Rx=0.605，Ry=〇.365 Gx=0.356 » Gy=〇.560 Bx=0.156，By=〇_l3i 步驟4:根據量測數據計算色座標，可求得紅色區塊開口率為 49〇/〇 ’藍色區塊為85%，綠色區塊為，㈤％時，顏色偏差為〇·觀5， 亮度為原本88%，相當符合產品需求。 綜上所述，本發明係在一個具有相同畫素寬度的光學式觸控面板 上’不_顏色區域上有獨面狀駐元件，並根據柯之感光元 件面積會有不同的開口率’以改變各顏色區塊之開口率，且在 些微亮度的情況下使顏色偏差有效縮小。#然，本翻亦可直接改 各顏色區塊之寬度，來_調整各顏色之開口率之目的者，使亮度和 顏色偏差達到-個平衡點’使顏色偏差和亮度損失降到最小。儿又 以上所述之實施例僅係為說明本發明之技術思想及特點，其 在使熟f此項技藝之人士能婦縣發明之内容並據以實施 以之限林發明之專利麵，即大凡依本發賴_之精神 : 等變化或修飾，仍應涵蓋在本發明之專利範圍内。 二 【圖式簡單說明】 201037393 第1圖為習知薄膜電晶贼測器的電路示意圖。 第2圖為習知之面板結構示意圖。 第3圖為本發明單一畫素單元之等效電路示意圖。 第4A、=B及4C圓為本發曰月對應於畫素單元之紅色區塊、綠色區塊及 藍色區塊設有感光元件之結構示意囷。 第5圖為本發㈣應於畫素單元之紅色輯及藍色區塊設有感光 之結構示意圖。 第6圖為本發明對應於畫素單元之紅色區塊設有感光元件之結構示意 【主要元件符號說明】 〇 10畫素單元 102紅色區塊（R) 104綠色區塊（G) 106藍色區塊（B) 20感光元件 202感光電晶體 204切換電晶體 206讀取線 30閘極線 Ο 32讀取單元 40薄膜電晶體感測器 42切換電晶體 .. 44感光電晶體 46讀取線 48薄膜電晶體基板 5〇彩色濾光片基板 52彩色濾光片 54黑色矩陣 9Rx=0.605, Ry=〇.365 Gx=0.356 » Gy=〇.560 Bx=0.156, By=〇_l3i Step 4: Calculate the color coordinates based on the measured data, and find the red block aperture ratio is 49〇/ 〇 'Blue block is 85%, green block is, (5)%, the color deviation is 〇·view 5, the brightness is originally 88%, quite in line with product demand. In summary, the present invention has a single-sided resident component on a non-color area on an optical touch panel having the same pixel width, and has a different aperture ratio according to the area of the photosensitive element of Ke. The aperture ratio of each color block is changed, and the color deviation is effectively reduced in the case of some micro-brightness. #然, this flip can also directly change the width of each color block, to adjust the aperture ratio of each color, so that the brightness and color deviation reach a balance point to minimize color deviation and brightness loss. The above embodiments are merely illustrative of the technical idea and features of the present invention, which enable the person skilled in the art to implement the contents of the invention and to implement the patent face of the invention. The spirit of the present invention is as follows: The changes or modifications are still to be covered by the patent of the present invention. 2 [Simple description of the diagram] 201037393 The first diagram is a circuit diagram of a conventional thin film electro-crystal thief detector. Figure 2 is a schematic view of a conventional panel structure. Figure 3 is a schematic diagram of an equivalent circuit of a single pixel unit of the present invention. The 4A, =B, and 4C circles are schematic representations of the structure of the photosensitive element corresponding to the red, green, and blue blocks of the pixel unit. Figure 5 is a schematic diagram of the structure in which the red (4) and the blue blocks of the pixel unit are photosensitive. Figure 6 is a schematic diagram showing the structure of a photosensitive element corresponding to a pixel block of the present invention. [Main element symbol description] 〇10 pixel unit 102 red block (R) 104 green block (G) 106 blue Block (B) 20 photosensitive element 202 photosensitive transistor 204 switching transistor 206 reading line 30 gate line Ο 32 reading unit 40 thin film transistor sensor 42 switching transistor: 44 photosensitive transistor 46 reading line 48 thin film transistor substrate 5 〇 color filter substrate 52 color filter 54 black matrix 9